Initial Surgical Procedure Research Articles

Paley cross union protocol for congenital pseudoarthrosis of the tibia.

Congenital pseudarthrosis of the tibia (CPT) is a rare, dysplastic condition causing significant disability in the lower limbs. A treatment aims to achieve long-lasting union, prevent limb length discrepancies, and prevent soft tissue lesions. Traditional surgery often yields satisfactory results, but amputation may be proposed in failed cases. This report presents a congenital pseudarthrosis of the tibia and fibula, treated with the Paley cross-union protocol. A 15-month-old girl presented with a crooked right lower leg at the age of two months, history of a right lower leg fracture at the age of eight months, and pain when moving her leg. She had undergone an initial surgical procedure to maintain tibia alignment with K-Wire insertion and was cast at a private hospital. The patient's physical examination showed a cast causing limited range of motion, but no tenderness or distal neurovascular issues. The Paley cross-union protocol was performed, involving anterior approach, curettage, and insertion of a titanium intramedullary elastic nail into the tibia. The fracture site area was covered with a meshed periosteum layer and filled with synthetic bone grafts. A long leg cast was performed after the procedure. An imaging examination post-cross-union protocol showed a good result. Cross-union for CPT represents a paradigm shift in the treatment of this horrible child disease. Given the promising result, the cross-union approach has to be regarded as a fresh criterion for treating CPT.

Can Periprosthetic Joint Infection of Tumor Prostheses Be Controlled With Debridement, Antibiotics, and Implant Retention?

Two-stage revision for periprosthetic joint infection (PJI) in patients who have undergone segmental replacement of the distal femur or proximal tibia after tumor resection can be associated with considerable morbidity, pain, and risk of complications because the procedure often results in removal of long, well-fixed stems from the diaphysis. A less-aggressive surgical approach, such as debridement, antibiotics, and implant retention (DAIR), may be attractive to patients and surgeons because of less morbidity, but the likelihood of eradicating infection in comparison to the traditional two-stage revision is not well established for oncology patients. Furthermore, the relative risk of subsequent amputation for DAIR versus two-stage revision has not been defined for this population. (1) How does DAIR compare with two-stage revision in terms of infection control for patients with distal femoral or proximal tibial segmental modular endoprostheses? (2) Is DAIR as an initial procedure associated with an increased risk of amputation compared with two-stage revision for infection? From the longitudinally maintained orthopaedic oncology surgical database at our institution, we identified 69 patients who had been treated for a clinical diagnosis of PJI at the knee between 1993 and 2015. We excluded 32% (22) of patients who did not meet at least one of the major criteria of the Musculoskeletal Infection Society (MSIS) for PJI, 3% (2) of patients who underwent immediate amputation, 3% (2) of patients who had a follow-up time of < 24 months, and 7% (5) of patients who did not have a primary tumor of the distal femur or proximal tibia. The study consisted of 38 patients, of whom eight underwent two-stage revision, 26 underwent DAIR, and four underwent extended DAIR (removal of all segmental components but with retention of stems and components fixed in bone) for their initial surgical procedure. To be considered free of infection, patients had to meet MSIS standards, including no positive cultures, drainage, or surgical debridement for a minimum of 2 years from the last operation. Factors associated with time-dependent risk of infection relapse, clearance, amputation, and patient survival were analyzed using Kaplan-Meier survivorship curves and the log-rank test to compare factors. Association of demographic and treatment factors was assessed using chi-square and Fisher exact tests. Continuous infection-free survival at 5 years was 16% (95% CI 2% to 29%) for patients undergoing DAIR compared with 75% (95% CI 45% to 100%) for patients undergoing two-stage revision (p = 0.006). The median (range) number of total surgical procedures was 3 per patient (1 to 10) for DAIR and 2 (2 to 5) for two-stage revision. Twenty-nine percent (11 of 38) of patients eventually underwent amputation. Survival without amputation was 69% (95% CI 51% to 86%) for DAIR compared with 88% (95% CI 65% to 100%) for two-stage revision at 5 years (p = 0.34). The cumulative proportion of patients achieving infection-free status (> 2 years continuously after last treatment) and limb preservation was 58% (95% CI 36% to 80%) for patients initially treated with DAIR versus 87% (95% CI 65% to 100%) for patients first treated with two-stage revision (p = 0.001). Infection control was better with two-stage revision than DAIR. The chance of eventual clearance of infection with limb preservation was better when two-stage revision was chosen as the initial treatment. However, the loss to follow-up in the two-stage revision group would likely make the true proportion of infection control lower than our estimate. Our experience would suggest that the process of infection eradication is a complex and difficult one. Most patients undergo multiple operations. Nearly one-third of patients eventually underwent amputation, and this was a serious risk for both groups. While we cannot strongly recommend one approach over the other based on our data, we would still consider the use of DAIR in patients who present with acute short duration of symptoms (< 3 weeks), no radiographic signs of erosion around fixed implants, and organisms other than Staphylococcus aureus. We would advocate the extended DAIR procedure with removal of all segmental or modular components, and we would caution patients that there is a high likelihood of needing further surgery. A prospective trial with strict adherence to indications may be needed to evaluate the relative merits of an extended DAIR procedure versus a two-stage revision. Level III, therapeutic study.

P-409 Intrauterine adhesion in Ultrasound-guided manual vacuum aspiration (USG-MVA) versus electric vacuum aspiration (EVA): a randomized controlled trial

Abstract Study question Does ultrasound-guided manual vacuum aspiration (USG-MVA) have a lower incidence of intrauterine adhesion (IUA) compared to conventional surgical evacuation? Summary answer The rate of intrauterine adhesion following ultrasound-guided manual vacuum aspiration (USG-MVA) was significantly lower compared to conventional surgical evacuation (EVA). What is known already Miscarriages are common in pregnant women and can be managed through conservative, medical, or surgical approaches. Traditional surgical evacuation for early pregnancy loss involves electric vacuum aspiration (EVA) under general anesthesia. However, manual vacuum aspiration (MVA) offers a cost-effective, portable, and easy-to-administer alternative. MVA has shown high effectiveness and minimal complications. By incorporating ultrasound guidance (USG), MVA can further reduce discomfort and minimize the risk of future intrauterine adhesions (IUA) due to its protective effect on the endometrium. However, the incidence of IUA after USG-MVA is still not known. Study design, size, duration This was a prospective single-centre, randomised controlled trial conducted in a university-affiliated tertiary hospital from May 2019 to September 2022. Patients were randomized into USG-MVA group or the EVA group. They were invited to come back for a hysteroscopic assessment for IUA at 6-20 weeks post-surgery to assess the incidence of IUA. Patients were contacted by phone at 6 months to assess their menstrual and reproductive outcomes. Participants/materials, setting, methods Chinese women aged ≥18 with a delayed miscarriage of up to 12 weeks of gestation or an incomplete miscarriage were randomly assigned to receive either USG-MVA or EVA for their miscarriage management. An outpatient hysteroscopy was conducted by a team of experienced gynecologists who had comparable surgical expertise within a timeframe of 6 to 20 weeks from USG-MVA or EVA. These gynecologists were unaware of the women’s initial surgical procedure performed for the first-trimester miscarriage. Main results and the role of chance This study included 303 patients who underwent surgical evacuation, with 152 receiving USG-MVA and 151 receiving EVA. Hysteroscopic assessments were completed by 126 patients in the USG-MVA group and 125 patients in the EVA group. The incidence of IUA was statistically (p &amp;lt; 0.02) lower in the USG-MVA group (19.0% ) when compared to the EVA group (32.0%). Interestingly, although there was no significant difference in menstrual outcomes at 6 months postoperatively between the two groups, a higher number of patients in the EVA group with IUA experienced subsequent miscarriages. Hysteroscopic adhesiolysis was performed during hysteroscopy when it is diagnosed to restore uterine cavity. XX USG-MVA patients underwent hysteroscopic adhesiolysis, compared to 36 patients in the EVA group. Two patients in the EVA group required additional treatment in the operating theatre or as an outpatient, and one patient did not follow-up as scheduled. The EVA group had a higher proportion of patients with hypomenorrhea among those who had previous intrauterine surgeries compared to the USG-MVA group, although this difference was not statistically significant. Overall, USG-MVA appears to be a more effective and safer option for managing early pregnancy loss due to its lower incidence of IUA and potential reduction in subsequent miscarriages. Limitations, reasons for caution Performing USG-MVA, as opposed to a blind MVA procedure, however, requires additional equipment and staff with appropriate training. There is no direct comparison between MVA and EVA with USG. The study only followed patients up to 6 months post-operation, which cannot further assess their fertility outcomes. Wider implications of the findings USG-MVA offers cost savings and increased patient comfort by being performed in an outpatient setting. Shifting procedures from the operating room to ambulatory settings reduces expenses and allows patients to avoid general anesthesia, promoting autonomy and quicker recovery. Trial registration number ChiCTR1900023198

Management of urinary incontinence in girls with congenital pouch colon.

This study describes the management of urinary incontinence (UI) in eight girls with congenital pouch colon (CPC) associated with anorectal malformation (ARM). From 2013 to 2015, six girls with CPC and UI underwent bladder neck reconstruction (BNR). Four girls had complete UI (CUI) and two girls partial UI (PUI). From 2019 to 2023, four girls, including two with failed BNR, underwent bladder neck closure (BNC) and augmentation cystoplasty (AC) with a continent stoma. Subtypes of CPC were Complete CPC (n = 7) and Incomplete CPC (n = 1). All girls had a double vagina; short, wide urethra; and reduced bladder capacity with an open, incompetent bladder neck (BNI). During BNR, a neourethra was constructed from a 1.5-2cm-wide and 1.5-3-cm-long trigonal strip. During BNC, AC was performed using a 20cm ileal segment (n = 3) and by a colonic pouch segment, preserved during earlier colorraphy (n = 1). Continent stoma included a Monti's channel (n = 3) and appendicovesicostomy (n = 1). BNR produced moderate improvement of UI (n = 2), while UI was still very severe (n = 4). During BNC, intraoperative complications included iatrogenic vaginal tears (n = 4). Early complications included partial dehiscence of the ileocystoplasty (n = 1), partial adhesive small bowel obstruction (n = 1), and difficulty in stomal catheterization with prolonged drainage from the pelvic drain (n = 1). Late complications included unilateral grade II vesicoureteric reflux (n = 2) and vesicovaginal fistula (VVF) (n = 2) needing trans-vaginal closure in one girl. Urinary stones (n = 2) with stomal leakage of urine in one girl needed open cystolithotomy twice (n = 1), and endoscopic lithotripsy (n = 1). At follow-up, all patients have high overall satisfaction with the procedure and their continence status. BNC with AC and a catheterizable stoma satisfactorily achieves continence in girls with CPC and UI, vastly improving quality of life. If lower urinary tract (LUT) anatomy is favorable, BNR with/without AC can be the initial surgical procedure. BNC should be the primary procedure in girls with unfavorable LUT anatomy and for failed BNR. IV.

An analysis of residual lung volume changes after segmentectomy based on three-dimensional computed tomography.

Based on the results of JCOG0802 and CALGB studies, segmentectomy has considered to be a standard procedure for early-stage non-small cell lung cancer (NSCLC). After lobectomy, the residual cavity is filled with mediastinal and diaphragmatic deviations, and compensatory volume changes are present in the residual lungs. In this study, we examined the efficacy of segmentectomy, a surgical procedure, by focusing on its impact on postoperative lung volume and function. We enrolled 77 patients who underwent segmentectomy as their initial surgical procedure, excluding those with additional lung resections and those who lacked postoperative computed tomography imaging. The predicted residual volume (mL) was defined as the total lung volume before surgery minus the volume of the resected area. Using the predicted residual volume (mL) and postoperative total lung volume (mL), we calculated the rate of postoperative lung volume increase [(postoperative total lung volume/predicted residual volume) × 100] (%). We also classified 52 cases with a rate of postoperative lung volume increase of ≥100% into a compensatory group, while those with a rate of <100% were classified into a non-compensatory group. The average postoperative lung volume increase was 104.6% among 77 cases. Age ≥65 years, pack year index ≥27.5, ≥3 resected segments, and use of electrocautery for intersegmental plane division were significantly associated with compensatory group classification. In 20 compensatory cases with preoperative and postoperative pulmonary function tests, postoperative vital capacity and forced expiratory volume in one second values exceeded the preoperative predictions. This study further examined the areas responsible for postoperative compensatory lung volume increase. In the compensatory group, significant expansion was observed in the ipsilateral lobes, excluding the resected segment and contralateral lung, while no significant changes were noted in the volume of the lobe, including the resected segment. Conversely, the non-compensatory group showed a significant volume decrease in the resected lobe, but no significant increase in other areas. This study emphasizes the importance of preserving lung segments in segmentectomy. The study demonstrates extensive compensatory volume changes in the ipsilateral lung and contralateral lung. There was no significant volume decrease in any residual segment. This underlines the potential of segmentectomy to maintain lung function and expand treatment options post-surgery. In addition, the compensated group included patients with a lower pack-year index and younger patients. These results suggest that postoperative compensatory lung expansion includes not only hyperinflation of the remaining lung, but also an increase in the functional lung parenchyma.

Exhaled breath analysis in patients with potentially curative lung cancer undergoing surgery: a longitudinal study

Exhaled breath analysis has emerged as a non-invasive and promising method for early detection of lung cancer, offering a novel approach for diagnosis through the identification of specific biomarkers present in a patient’s breath. For this longitudinal study, 29 treatment-naive patients with lung cancer were evaluated before and after surgery. Secondary electrospray ionization high-resolution mass spectrometry was used for exhaled breath analysis. Volatile organic compounds with absolute log2 fold change ⩾1 and q-values ⩾ 0.71 were selected as potentially relevant. Exhaled breath analysis resulted in a total of 3482 features. 515 features showed a substantial difference before and after surgery. The small sample size generated a false positive rate of 0.71, therefore, around 154 of these 515 features were expected to be true changes. Biological identification of the features with the highest consistency (m/z −242.18428 and m/z −117.0539) revealed to potentially be 3-Oxotetradecanoic acid and Indole, respectively. Principal component analysis revealed a primary cluster of patients with a recurrent lung cancer, which remained undetected in the initial diagnostic and surgical procedures. The change of exhaled breath patterns after surgery in lung cancer emphasizes the potential for lung cancer screening and detection.

Recurrence Characteristics on Optical Coherence Tomography and Treatments of Reis-Bücklers Corneal Dystrophy After Phototherapeutic Keratectomy or Penetrating Keratoplasty

PurposeTo evaluate the recurrence characteristics on optical coherence tomography and clinical outcomes after phototherapeutic keratectomy (PTK) or penetrating keratoplasty (PKP) in patients with Reis-Bücklers corneal dystrophy (RBCD). DesignRetrospective interventional case series. MethodsSeventeen patients with RBCD (31 eyes, including six surgery-naïve eyes and 25 surgical eyes) received 44 surgical interventions from 1996 through 2022. PTK or PKP was performed as the initial surgical procedure. Significant recurrence was determined when best spectacle-corrected visual acuity decreased at least two lines with increased opacity in the superficial cornea. Repeated PTK or PTK on the corneal graft (CG-PTK) was considered if patients could not endure poor vision due to significant recurrence. Recurrence depth and annual increase in thickness of the central cornea and subepithelial deposits were assessed by anterior segment optical coherence tomography. ResultsThe mean follow-up time was 12.8±8.5 years (range, 2.0–25.5 years). The mean logMAR best spectacle-corrected visual acuity improved from 1.24±0.48 preoperatively to 0.27±0.09 postoperatively in the initial PTK group (13 eyes, P<0.001), from 1.84±0.69 to 0.40±0.13 in the PKP group (12 eyes, P<0.001), from 1.04±0.46 to 0.30±0.07 in the repeated PTK group (12 times in 7 eyes, P<0.001), and from 1.29±0.43 to 0.39±0.11 in the CG-PTK group (7 times in 5 eyes, P=0.001). The median significant recurrence time was 27 months (95% confidence interval 23.9-30.1), 96 months (84.1-107.9), 31 months (28.8-33.1), and 24 months (19.8-28.2), respectively (P<0.001). The depth of superficial deposits located between the epithelium and the anterior stroma was approximately 115μm (85-159μm). The annual thickening of subepithelial deposits was 14±2μm after initial PTK, 7±3μm after PKP, 14±3μm after repeated PTK, and 30±11μm after CG-PTK, compared to 4±2μm in surgery-naïve eyes (P=0.002, 0.515, 0.002, <0.001). The thickness of the central cornea increased by 15±2μm, 7±2μm, 15±3μm, and 31±10μm per year in the four surgery groups, respectively, compared to 5±2μm in surgery-naïve eyes (P=0.001, 0.469, 0.001, <0.001). ConclusionsBetter visual acuity can be achieved after PTK than PKP for treatment of RBCD. The annual thickening of subepithelial deposits may approximate an increase in central corneal thickness. The superficial distribution of subepithelial deposits makes it feasible to perform repeated PTK, even on the corneal allograft, for recurrent RBCD.

Abstract PO5-10-07: Risk factors associated with secondary cancers in AYA patients with breast cancer. A SEER database study

Abstract Background Adolescents and young adults (AYA) diagnosed with breast cancer face unique challenges and have distinct characteristics compared to older patients. While primary breast cancer remains a significant concern, the risk of developing secondary cancers in this population is also of great importance. This study aimed to identify these risk factors by analyzing a large cohort of AYA breast cancer patients using SEER (Surveillance Epidemiology and End Result) Database. Methods Patients were identified from SEER Research Data 17, from 2000 to 2019. Patients aged 18-39 years with breast cancer and at least 1 year of survival were identified. Secondary cancers were then identified and included any disease site. Patient demographic and clinical characteristics were summarized by secondary cancer status using Mann-Whitney U and Fisher’s exact tests. Overall survival from the initial breast cancer diagnosis was summarized by secondary cancer status using standard Kaplan-Meier methods, where the median and 3/5-year rates were estimated with 95% confidence intervals. Comparisons were made using the log-rank test. SAS v9.4 (Cary, NC) was used at a significance level of 0.05. Results A total of 47,912 AYA breast cancer patients were identified, of which 2,886 (6.0%) developed a secondary cancer at least 1 year after the initial breast cancer diagnosis. When comparing patients with and without secondary cancers, we observed significant differences with respect to age at initial breast cancer diagnosis, race, stage, nodal status, surgical procedure, ER status, PR status, Her2 status, and sub-type (Table 1). The analysis of overall survival showed that, from the time of breast cancer diagnosis, there was no statistically significant difference between patients with and without secondary cancers. However, this may be due to an immortal time bias. Breast was the most common site of secondary cancer (67%) followed by gynecological (7%), colorectal (3.7%), skin (3.4%) lung and hematologic (2.7%) Compared to other subtypes, TNBC patients were found to have much shorter time to secondary cancer development of 38 months compared to Her2+ and ER/PR+ (40 and 45 months respectively, P&amp;lt; 0.001). Black and Hispanic individuals were found to have higher rates (7.4% and 6.3%) and earlier development of secondary cancer (76 months and 74 months) as compared to whites and Asians (5.9% and 5%, 88 months and 81 months, P&amp;lt; 0.001 and P&amp;lt; 0.002 respectively). Conclusion This study identified several risk factors associated with the development of secondary cancers in AYA breast cancer patients such as age at initial breast cancer diagnosis, race, stage, nodal status, surgical procedure and sub-type. Higher rates and early development of secondary cancer were observed among TNBC subtype and Black and Hispanic races that calls for further investigation and tailored interventions to improve outcomes in specific patient populations. Table 1 showing significant differences in characteristics AYA breast cancer patients who developed secondary breast cancer compared to those who did not Citation Format: Sheeba Ba Aqeel, Alankrita Taneja, Shipra Gandhi. Risk factors associated with secondary cancers in AYA patients with breast cancer. A SEER database study [abstract]. In: Proceedings of the 2023 San Antonio Breast Cancer Symposium; 2023 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2024;84(9 Suppl):Abstract nr PO5-10-07.

A case of iridoschisis with partial lens dislocation in both eyes

BackgroundIridoschisis is a rare condition that primarily affects individuals aged 60–70 years. The predominant characteristics of iridoschisis involve the tissue splitting and separation of the iris stromal layers, often resulting in two distinct layers and the presence of floating fibers in the anterior chamber. This article reports the case of a 48-year-old male with iridoschisis with partial lens dislocation in both eyes.Case presentationTrauma is the leading factor in the development of iridoschisis. However, there is no documented case of ocular trauma in the patient’s medical history. Visible white atrophic fibers were observed bilaterally in the anterior iris stroma of both eyes of the individual, accompanied by a small quantity of iris tissue within the anterior chamber. In this instance, the magnitude of the iridoschisis corresponded with the degree of lens dislocation. We were apprised that the patient had regularly used a cervical massager for a prolonged period of time, positioning it upon the ocular region. Frequent stimulation of both eyes with excessive force resulted in the development of iridoschisis and the partial dislocation of the lens.During the initial surgical procedure, phacoemulsification (Phaco) was carried out on the left eye without the placement of an intraocular lens (IOL). Following a two-month interval, we proceeded with the IOL suspension. Subsequently, the right eye underwent Phaco, accompanied by the implantation of an IOL. After closely monitoring the patient’s progress for two months, it was evident that their vision had significantly improved, substantiating the success of the surgical interventions.ConclusionsThis finding posits that the recurrent friction applied to both eyes may induce iridoschisis and various ocular complications. In the event of ocular intricacies manifesting, expeditious medical intervention becomes imperative.

Child-TRACH: Management of tracheostomy in children, a Yo-IFOS survey

ObjectivesThe number of tracheostomies in children has increased the last twenty years thanks to neonatal and pediatric intensive care improvement. As it is often a difficult situation to deal with for children and their caregivers, we wished to draw up the inventory of the management protocols of pediatric tracheostomies around the world. MethodsWe performed an online international survey for ENTs managing children with tracheostomies. The survey was in English and diffused through ENT national and international societies (International Federation of Otorhinolaryngologists Societies, IFOS and French Society of Otorhinolaryngologists, SFORL). Answers were anonymized and collected online between September 2021 and January 2022. All data were analyzed as a whole and according to the continent. Results119 ENTs from the different continents responded to the survey: Europe (45.4 %), Asia (16 %), North America (14.3 %), South America (10.9 %), Africa (6.7 %) and Oceania (6.7 %). The most common indication for tracheostomy was laryngeal obstruction (77.3 %). Once initial management and surgical procedure performed, the majority of children returned home with their tracheostomy; tracheostomy was a contraindication for only 1.7 % of the responders. Concerning patient autonomy on daily care of the cannula at home, it was acquired in only 27.7 % of the cases, no difference was observed between countries (p = 0.22). Therapeutic patient education (TPE) was offered for 86.9 % of the patients taken care by the responders: it was dedicated to training the parents (96.8 %), with no differences between countries; however, in some countries, TPE for could also be offered to other caregivers. The mean delay between surgery and first change of cannula was 27.3 days (1–100) but varied depending on the country (4 days in Nigeria, 20 days in north America, 40 days in Europe, Asia and south America). ConclusionAlthough tracheostomies in children can encompass several indications, practices across the world are similar and aim to offer a life as normal as possible for these children.

Evaluation of the management of intestinal perforation in very low birth infants, a 10-year review.

The aim of this study was to assess outcomes of peritoneal drainage and laparotomy in the management of intestinal perforation secondary to necrotizing enterocolitis (NEC) and spontaneous intestinal perforation. A retrospective review of all preterm infants (birthweight ≤1500 g) who underwent surgical intervention (peritoneal drainage and/or laparotomy) for intestinal perforation between March 2010 and March 2020. A total of 43 infants who underwent surgical intervention for intestinal perforation were included [19 (44%) with NEC and 24 (56%) with spontaneous intestinal perforation]. Peritoneal drainage was more commonly placed as the initial surgical procedure for management of spontaneous intestinal perforation compared with surgical NEC [23 (96%) vs. 11 (58%), p = 0.003]. Mortality was greater for infants who were initially managed with peritoneal drainage [11 (32%)] compared with those who underwent primary laparotomy [2 (22%), p = 0.5]. Initial surgical management of intestinal perforation is more often according to underlying pathology. Our data support primary laparotomy for infants with perforated NEC.

Open or closed abdomen post laparotomy to control severe abdominal sepsis: a survival analysis.

severe abdominal sepsis, accompained by diffuse peritonitis, poses a significant challenge for most surgeons. It often requires repetitive surgical interventions, leading to complications and resulting in high morbidity and mortality rates. The open abdomen technique, facilitated by applying a negative-pressure wound therapy (NPWT), reduces the duration of the initial surgical procedure, minimizes the accumulation of secretions and inflammatory mediators in the abdominal cavity and lowers the risk of abdominal compartment syndrome and its associated complications. Another approach is primary closure of the abdominal aponeurosis, which involves suturing the layers of the abdominal wall. the objective of this study is to conduct a survival analysis comparing the treatment of severe abdominal sepsis using open abdomen technique versus primary closure after laparotomy in a public hospital in the South of Brazil. We utilized data extracted from electronic medical records to perform both descriptive and survival analysis, employing the Kaplan-Meier curve and a log-rank test. the study sample encompassed 75 laparotomies conducted over a span of 5 years, with 40 cases employing NPWT and 35 cases utilizing primary closure. The overall mortality rate observed was 55%. Notably, survival rates did not exhibit statistical significance when comparing the two methods, even after stratifying the data into separate analysis groups for each technique. recent publications on this subject have reported some favorable outcomes associated with the open abdomen technique underscoring the pressing need for a standardized approach to managing patients with severe, complicated abdominal sepsis.

Cost-effectiveness analysis of Avance® allograft for the treatment of peripheral nerve injuries in the USA.

Aim: Peripheral nerve injury (PNI) is a debilitating condition with significant associated morbidity, and which places a substantial socioeconomic burden on healthcare systems worldwide. Recently, allograft has emerged as a viable surgical alternative to autograft for the treatment of PNI. This study evaluated the cost effectiveness of allograft (Avance® Nerve Graft) compared with autograft for the peripheral nerve repair, from a USpayer perspective. Methods: A Markov cohort model was developed to consider the treatment pathways followed by a patient population undergoing a single transected nerve repair with either allograft, or autograft. The marginal difference in meaningful recovery (MR) (effectiveness), and costs, between the two groups were estimated over a lifetime horizon. Deterministic and probabilistic sensitivity analyses (PSA) were performed to consider the uncertainty surrounding the base-case input parameter values and their effect on the overall incremental cost-effectiveness ratio (ICER). Results: The base-case analysis indicates that there is a small difference in the average probability of MR between the two groups (75.15% vs 70.46%; +4.69% with allograft). Allograft also results in cost savings ($12,677 vs $14,023; -$-1346 with allograft) compared with autograft. Deterministic sensitivity analysis shows that the costs of the initial surgical procedures are the main drivers of incremental cost, but that the intervention is likely to be cost saving compared with autograft regardless of the parameter variations made. Conclusion: The use of allograft with the Avance Nerve Graft has the potential to be a cost-effective alternative to autograft for the surgical treatment of PNI in the USA.

Longitudinal analysis of long-term outcomes of colorectal cancer after laparotomy and laparoscopic surgery: The Shizuoka study.

Long-term cancer prognosis after initial surgical procedures is an unlikely endpoint for clinical trials. Medical claim databases may aid in addressing this issue regardless of limited information on disease and patient background. However, the long-term prognosis (especially regarding long-term care needs) following surgical procedures remains unclear. This study aimed to assess whether long-term outcomes, such as the exacerbation of long-term care needs and mortality, differ with surgical methods. Using a longitudinal study with linkage between medical claim and long-term care database, patients with primary colorectal cancer who underwent initial colonoscopies were identified through anonymized data in Japan (Shizuoka Kokuho Database, 2012-2018). Odds ratios (ORs) for long-term outcomes (long-term care needs and all-cause mortality during a 6.5-year follow-up period) were analyzed using logistic regression to compare laparoscopy and endoscopic surgery to laparotomy. Overall, 3,744 primary colorectal cancer cases (822 laparotomies, 705 laparoscopies, and 2,217 endoscopic surgeries) were included. Compared to the laparotomy group, the crude OR for exacerbation of long-term care needs in the laparoscopic surgery group was 0.376 (95% confidence interval, 0.227, 0.624), while the OR for all-cause mortality was 0.22 (0.329, 0.532). This is the first study to analyze long-term prognosis after surgery for patients with colorectal cancer to combine medical and long-term needs data. As the national health insurance claim database rarely includes information on cancer stage and comorbidities, better prognosis on endoscopic surgery may need careful interpretation. Therefore, laparoscopy has superior outcomes in terms of long-term care needs and mortality compared to those of laparotomy.

Modified Endoscopic Vacuum Assisted Closure (E-VAC) is a novel minimally invasive technique for treating esophageal pleural fistulas

BackgroundSurgical pathologies of the esophagus in the pediatric age are not unusual. However, when they appear, they are not complications-free. These include anastomotic dehiscence or pleural fistulas. Classically they are treated clinically, and this treatment is associated with complications such as mediastinitis, pleural effusion, sepsis, and death. We propose treating esophageal dehiscence using a negative pressure system placed endoscopically. This minimally invasive procedure can be used as definitive treatment or bridging therapy for surgical correction. MethodsThis is a retrospective longitudinal multicenter study from January 2018 to January 2022 in five medical centers, three located in Colombia and two in Mexico. The patients had esophageal dehiscence or pleural fistula diagnosed by contrast leakage in postoperative esophagogram or endoscopy and treated with an endoscopic negative pressure system, with a 30-day follow-up after the diagnosis. We analyze the time of placement, pressure and E-VAC (Endoscopic- Vacuum Assisted Closure) replacements, as well as the efficacy and inherent complications. ResultsWe present nine patients diagnosed with esophageal dehiscence or pleural fistula treated with endoscopic VAC. The oldest was 14-years old and the youngest was 2-day-old. Six patients were diagnosed with esophageal atresia, either type III or type I. The other three patients had gastric volvulus, short esophagus, and embryonic esophageal remnants. The most frequent initial surgical procedures were the correction of esophageal atresia and esophageal-jejunal anastomosis. The esophageal dehiscence or pleural fistula was diagnosed by esophagogram with hydrosoluble contrast. Four patients had E-VAC as initial therapy; the remaining five used it after expectant management failed. Fistula closure took an average of 13 days, with fewer than three VAC changes required. Two of the nine patients presented with subsequent anastomotic stenosis, which was treated with endoscopic dilation using a balloon dilation. ConclusionsUsing the E-VAC system in esophageal and pleural fistulas is effective in all our patients. It also shortens hospitalization and treatment time when performed as the first management line. We recommend using E-VAC at a pressure of 50 - 125 mmHg and preferably of the continuous type. System changes are indicated when there are suction problems, system clogging, or E-VAC migration when relocation is impossible. The other methods described do not use the transparent dressing, so it must be completely changed at each control. Level evidenceIV

Long-term outcomes of functional single ventricles associated with heterotaxy syndrome†.

The goal of this study was to determine the long-term surgical outcomes of patients with functional single ventricles associated with heterotaxy syndrome, risk factors for mortality and factors associated with Fontan stage completion. Overall, 279 patients with a functional single ventricle associated with heterotaxy syndrome who underwent an initial surgical procedure at our institute between 1978 and 2021 were grouped into 4 "eras" based on the surgical year during which the initial procedure was performed: era 1 (1978-1989, n = 71), era 2 (1990-1999, n = 98), era 3 (2000-2009, n = 64) and era 4 (2010-2021, n = 46). Neonatal surgery was more frequent in eras 3 and 4 than in eras 1 and 2. Overall, 228 patients had right atrial isomerism; 120 patients (43.0%) had a total anomalous pulmonary venous connection; and 58 patients (20.8%) underwent an initial procedure as neonates. Overall survival rates at 10, 20 and 30 years after the initial procedure were 47.1%, 40.6% and 36.1%, respectively. Neonatal surgery (P < 0.001), total anomalous pulmonary venous connection repair at the initial procedure (P < 0.001) and early era (P < 0.001) were identified as risk factors for mortality, with the last 2 variables being negatively associated with Fontan stage completion (P < 0.001 for both). Although era had a favourable effect on survival, total anomalous pulmonary venous connection with intrinsic pulmonary vein obstruction was associated with both mortality and Fontan stage completion. R19092.

P11.18.B AIMING TOWARDS DIFFERENTIATING GLIOBLASTOMA PROGRESSION FROM PSEUDO PROGRESSION -PATIENTS COHORT ESTABLISHMENT AND PRELIMINARY RESULTS

Abstract BACKGROUND Longitudinal follow-up of glioblastoma patients includes advanced imaging modalities to identify tumor progression, which is of limited certainty and occasionally necessitates additional tissue sampling that has potential morbidity. Lately, the possibility of tumor-associated protein markers detection in patients' blood samples - liquid biopsies - has shown useful for this purpose in other cancers and has also gained significant interest in glioblastoma. METHODS This study presents data collected from 36histopathology-confirmed IDH-WT glioblastoma patientstreated in Sheba Medical Center between the years 2009 to 2021. Following their diagnosis, these patients were treated with radiation according to the Stupp protocol and subjected to repeated resection due to suspected tumor progressionbased on imaging studies. The data retrieved from patients' medical files include demographics, clinical outcomes, imaging characteristics, tumor molecular, andhistopathological markers. Notably, patients' selection and data retrieval were accomplished using a novel institutional AI algorithm software followed by complementary manual data retrieval of selected patients' medical files. RESULTS Patients demographics analysis showed that patientmedian age-at-diagnosis was 55.4 years (range, 21-82), and the male-to-female ratio was 3.5:1. The median overall survival (OS) was 25.1 months (range, 5.2-80.3) and the median follow-up duration was 23.1 months (range, 4.8-80.2).27 out of 36 patients had pathologically confirmed tumor progression while the remaining patients had post-radiation changes along with viable tumor or merely radiation necrosis identification. Pre-surgical resection blood samples were available for 27 out of 37 patients and will be used for a comprehensive glioblastoma-related proteins search using mass spectroscopy. In cases of patients' blood samples available both from the initial diagnosis surgical resection procedure and tumor progression surgical resection, a comparative analysis of those samples will be performed. The preliminary proteomics analysis and clinical outcomes measurements and volumetric tumor data will be presented. CONCLUSION s: Here, we present a glioblastoma patient cohort that was meticulously selected with the aim to examine our hypothesis that measuring glioblastoma-related proteins in patients' blood can be achieved and serve as a tool to distinguish between disease phases and monitor disease progression. Our comprehensive preliminary clinical, as well as proteomics data analysis, will be presented and discussed.

Vitreoretinopathy-Associated Pediatric Retinal Detachment Treatment Outcomes: IRIS® Registry (Intelligent Research in Sight) Analysis.

To determine the treatment patterns and outcomes of pediatric retinal detachments (RDs) associated with hereditary vitreoretinopathies. Retrospective cohort analysis using IRIS® Registry (Intelligent Research in Sight) database. Patients < 18 years old with a rhegmatogenous RD and a systemic disorder associated with vitreoretinal degeneration (e.g., Stickler syndrome) or other malformation of the vitreous from 2013-2019. Cases were identified using International Classification of Diseases, Ninth and Tenth Revisions (ICD-9, ICD-10) diagnostic codes from the IRIS® Registry cohort. Other hereditary vitreoretinopathies that are not encoded by specific ICD code(s) were captured by text search. Nonspecific vitreous abnormality ICD codes were also included. Exclusion criteria included traumatic retinal detachments using ICD codes for ocular trauma and serous or exudative retinal detachment. Surgical procedures were identified using Current Procedural Terminology (CPT) codes for repair of retinal detachment. Baseline demographic information collected included age, gender, race/ethnicity, geographic region of the provider location, and health insurance status. Main outcomes measured in this study were average time to first surgery, number of eyes presenting with bilateral detachments, and choice of initial surgical procedure. A total of 2115 eyes of 1722 patients were identified (mean age, 10.4 years; 58% male). The median time to first surgery was 7 days (interquartile range, 40 days). One thousand four hundred seven eyes of 1134 patients had ≥ 1 year of follow-up, with 506 eyes (36%) developing a fellow eye RD. Thirty-three percent of patients presenting with bilateral detachments, and 349 eyes had initial RD surgery within 1 year of the index date documented by CPT code. Fellow eye detachment occurred a mean of 32 days after initial presentation. The mean number of surgeries per eye within 1 year was 1.68. Best-corrected visual acuity did not improve from a baseline 20/54 to 20/62. The initial procedure was most commonly complex RD repair (n = 176), followed by scleral buckle (n = 102), pars plana vitrectomy (n = 89), laser (n = 59), cryotherapy (n = 5), and pneumatic retinopexy (n = 5). There were 51 new diagnoses of glaucoma and 37 new diagnoses of aphakia within 1 year after the surgical procedure. IRIS Registry data provide insight into rare pediatric vitreoretinopathy-associated RDs, which have a high rate of reoperation and fellow eye involvement. Proprietary or commercial disclosure may be found after the references.

Budget impact analysis of a bovine pericardial aortic bioprosthesis versus mechanical aortic valve replacement in adult patients with aortic stenosis in Romania

AimsAn analysis of the budget impact of using a bovine pericardial aortic bioprosthesis (BPAB) or a mechanical valve (MV) in aortic stenosis (AS) patients in Romania.Materials and methodsA decision-tree with a partitioned survival model was used to predict the financial outcomes of using either a BPAB (the Carpentier-Edwards Perimount Magna Ease Valve) or MV in aortic valve replacement (AVR) procedure over a 5-year period. The budget impact of various resource consumption including disabling strokes, reoperations, minor thromboembolic events, major bleeding, endocarditis, anticoagulation treatment and monitoring, and echocardiogram assessments were compared for both types of valves. One-way sensitivity analyses (OWSA) were conducted on the input costs and probabilities.ResultsThe use of BPAB compared to MV approaches budget neutrality due to incremental savings year-on-year. The initial surgical procedure and reoperation costs for BPAB are offset by savings in acenocoumarol use, disabling strokes, major bleeding, minor thromboembolic events, and anticoagulation complications. The cost of the initial procedure per patient is 460 euros higher for a BPAB due to the higher valve acquisition cost, although this is partially offset by a shorter hospital stay. The OWSA shows that the total procedure costs, including the hospital stay, are the primary cost drivers in the model.LimitationsResults are limited by cost data aggregation in the DRG system, exclusion of costs for consumables and capital equipment use, possible underestimation of outpatient complication costs, age-related variations of event rates, and valve durability.ConclusionsAdopting BPAB as a treatment option for AS patients in Romania can lead to cost savings and long-term economic benefits. By mitigating procedure costs and increasing anticoagulation treatment costs, BPAB offers a budget-neutral option that can help healthcare providers, policymakers, and patients alike manage the growing burden of AS in Romania.

Cost Effectiveness of Concurrent Midurethral Sling at the Time of Prolapse Repair: Results From a Randomized Controlled Trial

ABSTRACT After pelvic reconstructive surgery for pelvic organ prolapse, postoperative stress urinary incontinence (SUI) commonly occurs, which leads many women to choose to have a midurethral sling placed at the time of surgery, even in cases without symptomatic preoperative urinary incontinence. Approximately 27.3% of women with a sling had de novo SUI despite this intervention. Full evaluation of the societal and economic implications brought by a midurethral sling placement attempting to prevent postoperative de novo SUI at the time of a pelvic reconstructive surgery have yet to be evaluated. This study aimed to evaluate the 1-year cost-effectiveness of a midurethral sling in the prevention of SUI at the time of prolapse surgery. This assessment was a randomized controlled trial based on patient resource utilization and patient-reported effectiveness. Study data were obtained via the OPUS randomized clinical trial, which was performed through the Pelvic Floor Disorders Network (a cooperative agreement network sponsored through the National Institute of Child Health and Human Development). A total of 337 women with anterior vaginal prolapse and without SUI symptoms set to undergo treatment from May 2007 to January 2011 were included in the study. Patients were randomly assigned to receive either sham incisions or a midurethral sling during vaginal prolapse surgery. Follow-up occurred at 3, 6, and 12 months postsurgery, with surveys, physical examinations, and medical history. Cost data were collected, and overall health utility in quality-adjusted life-years (QALYs) was calculated. Secondary outcomes were urinary incontinence-specific quality of life and cases of urinary incontinence, as defined by bothersome incontinence symptoms and positive cough stress tests. Initial surgical procedures and subsequent urinary incontinence-related health care were all used for recording health care sector costs. Total costs for study participants were collected via health care resource utilization data, including office visits, additional surgical procedures, and related procedures. The incremental cost-effectiveness ratio was the difference between the sham incision and midurethral sling groups in mean cost, divided by difference in mean QALYs. Data for health care resource utilization were collected during the trial period. Questionnaires at baseline, 3, 6, 9, and 12 months were used to collect other costs. At 1 year, one-way sensitivity analysis was performed for assessing the varying effectiveness of midurethral slings at 1 year, by noting the urinary incontinence-associated patient costs and by using varied QALY for the sling group. Results were taken from a study population of 337 women who underwent randomization to be included in the analysis of cost-effectiveness. No great variance of characteristics existed between groups. One year after surgery, a lower rate of urinary incontinence existed for those in the midurethral sling group. Notably, QALYs were not statistically different between midurethral sling and sham incision groups at baseline, but at 12 months, there was an improvement in both the UDI stress subscale and an overall reduction in the Incontinence Severity Index for the midurethral sling group. In conclusion, although prophylactic midurethral sling placements during vaginal prolapse surgery does reduce the rate of de novo SUI, based on this analysis of date from the OPUS trial, it is not a cost-effective intervention. The decision to place a sling in this setting is often driven by cost savings on the patient side, whereas midurethral sling health care costs are higher than when sling is not done.