Higher Rate Of Postoperative Complications Research Articles

Surgical treatment of feline intracranial meningiomas: a retrospective study of 26 cases.

Surgical excision is the treatment of choice for feline intracranial meningioma. To report clinical findings, complications, and outcomes following surgery for feline intracranial meningioma. Medical records (01/2000-01/2017) of cats that underwent surgical excision of an intracranial meningioma at our institution were reviewed. Patient data included signalment, clinical signs, surgical technique, complications, histopathologic diagnosis, survival time, and owners' answers to a satisfaction questionnaire. Survival was assessed using the Kaplan-Meier method and log-rank test. Twenty-six cats were included in this study. The exact cause of death was known in 17 cases and was not related to meningioma in 9/17 cases. Overall median survival time was 881 days (95% confidence interval 518; 1248). The age of the cat did not influence survival (p = 0.94) or the occurrence of complications (p = 0.051). Complications occurred in 13/24 cats, including dramatic complications in 4/24 cats. Most complications appeared in the first 24 hours post-surgery (12/13). Males had more postoperative complications (p = 0.042), including more seizures (p = 0.016). Cats with cranioplasty had fewer complications (p = 0.021). Clinical recurrence was confirmed in 3 out of 17 cats. Recurrence-free survival time was 826 days. Most owners (12/14) were satisfied with the outcome. Surgical treatment of intracranial meningioma in cats was associated with a long median survival time but also with a high rate of minor and major postoperative complications, including early postoperative seizures. Cranioplasty may reduce complications. Age at the time of surgery had no effect on outcomes.

Long-Term Outcomes of Non-surgical versus Surgical Treatment for Carpal Tunnel Syndrome: An Observational Cohort Study

Background: Carpal Tunnel Syndrome (CTS) is a common condition that significantly impacts patients' quality of life and work productivity. While both non-surgical and surgical treatments are employed, there is a lack of consensus regarding the most effective management strategy.
 Objective: This study aims to compare the outcomes of non-surgical and surgical treatments for CTS, focusing on symptom severity, functional status, and patient satisfaction.
 Methods: This observational cohort study included 74 participants, with 37 in each treatment group (non-surgical and surgical). Demographic data, including age, gender, occupation, and hand dominance, were recorded. Clinical parameters assessed were duration and severity of CTS symptoms, previous treatments, and comorbid conditions. The non-surgical group underwent treatments like wrist splinting, NSAIDs, and physical therapy, while the surgical group underwent decompression surgery. Outcomes measured included frequency and severity of symptoms, impact on daily activities, and satisfaction with treatment outcomes. Data were analysed using descriptive statistics to compare between groups.
 Results: The average age was 50 ± 9 years in the non-surgical group and 52 ± 8 years in the surgical group, with a predominance of females in both. The non-surgical group showed higher frequency and severity of symptoms, with daily symptoms reported by 76.1% of patients, compared to 44.4% in the surgical group. Severity of pain was higher in the non-surgical group (5.8 out of 10) than in the surgical group (2.8 out of 10). Satisfaction with surgical outcomes was high, with all patients in the surgical group reporting satisfaction despite a 100% rate of postoperative complications.
 Conclusion: The study indicates that surgical treatment for CTS may be more effective in reducing symptom severity and improving patient satisfaction compared to non-surgical methods. However, the high rate of postoperative complications in the surgical group necessitates careful consideration and patient counselling regarding treatment choices.
 Keywords: Carpal Tunnel Syndrome, Non-surgical Treatment, Surgical Treatment, Patient Outcomes, Symptom Severity, Treatment Satisfaction

Effects of Respiratory Physiotherapy in Pulmonary Dysfunction after Cardiac Surgery

Background: Cardiovascular system diseases are a leading cause of death globally. Heart surgeries, performed worldwide to treat these conditions, are often followed by high rates of postoperative complications. Objective: The study aimed to compare the effects of pulmonary physiotherapy on respiratory dysfunction following cardiac surgery. Methods: Forty patients with pulmonary dysfunction post-coronary artery bypass grafting (CABG) participated in the study. They were randomly assigned to receive either postoperative pulmonary physical therapy, including breathing exercises and respiratory muscle training, or conventional physical therapy exercises. Vital capacity (VC), forced vital capacity (FVC), forced expiratory volume in one second (FEV1), and inspiratory capacity (IC) were measured using spirometry. Data analysis was conducted using the Statistical Package for the Social Sciences (SPSS), with paired t-tests comparing all variables. Results were considered significant at a p-value < 0.05. Results: The study included 21 participants in each group, with a mean age of 55.37 ± 8.72 years. Mean vital capacity in Group A was 2.40 ± 0.46 pre-treatment, increasing to 2.97 ± 0.43, while in Group B it was 2.34 ± 0.41 at baseline, increasing to 2.98 ± 0.36, with a p-value > 0.05 indicating no significant pre- and post-test effects in Group A. Significant pre-post differences in spirometry values were observed within both groups, but no significant differences were noted when compared across the groups following CABG. Conclusion: The study concluded that pulmonary rehabilitation post-cardiac surgery is highly recommended to minimize postoperative complications of heart surgery. It contributes significantly to the prognosis of these patients, emphasizing the importance of preoperative procedures focused on preventing pulmonary system complications and facilitating recovery in the postoperative period after major cardiac surgeries.

Comparative evaluation of different types of gastric conduits used for single-stage reconstruction during oesophageal cancer esophagectomy. Review

In the treatment of local and local‑regional oesophageal cancer, esophagectomy takes centre stage. It is a complex procedure with a high rate of postoperative complications. There are different methods for oesophageal reconstruction, including colon interposition, supercharged jejunal interposition, and gastric pull‑up. Each has both advantages and disadvantages. However, a gastric graft is the preferred option due to the less traumatic nature of the operation. Currently, there are different methods for forming a gastric graft. Gastric conduits are classified based on their shape and can be categorised as whole‑stomach, sub‑total stomach, or gastric tube. Previous research on the functional characteristics of gastric conduits revealed that the most effective solution is a typical gastric tube. Due to its width (3—6 cm), the gastric tube limits its impact on lung movement within the pleural cavity, hence decreasing the incidence of postoperative respiratory complications (e.g., pneumonia). Pulmonary complications and anastomotic leaks are the main contributing causes of postoperative morbidity and mortality after esophagectomy. Other complications include technical and functional issues, as well as delayed problems such as anastomotic strictures and disease recurrence. However, the rate of complications remains between 20 and 80%, prompting oncologic surgeons to develop new methods for gastric conduit formation. Over the past 5 years, innovative methods using a special‑shaped gastric tube have been suggested. They appear to decrease the incidence of postoperative complications and enhance nutritional outcomes. This study aimed to evaluate the advantages of using special‑shaped gastric tubes in clinical practice as opposed to whole‑stomach and typical gastric tubes.

Gender and Sex Differences in Health-related Quality of Life, Clinical Outcomes and Survival after Treatment of Metastatic Spine Disease.

Retrospective review of prospective, multicenter and international cohort study. To describe the effect of gender on HRQoL, clinical outcomes and survival for patients with spinal metastases treated with either surgery and/or radiation. Gender differences in health-related outcomes are demonstrated in numerous studies, with women experiencing worse outcomes and receiving lower standards of care than men, however, the influence that gender has on low health-related quality of life (HRQoL) and clinical outcomes after spine surgery remains unclear. Patient demographic data, overall survival, treatment details, perioperative complications, and HRQoL measures including EQ-5D, pain NRS, the short form 36 version 2 (SF-36v2) and the Spine Oncology Study Group Outcomes Questionnaire (SOSGOQ2.0) were reviewed. Patients were stratified by sex, and a separate sensitivity analysis that excluded gender-specific cancers (i.e., breast, prostate, etc.) was performed. The study cohort included 207 female and 183 male patients, with age, smoking status, and site of primary cancer being significantly different between the two cohorts (P<0.001). Both males and females experienced significantly improved SOSGOQ2.0, EQ-5D, and pain NRS scores at all study time points from baseline (P<0.001). Upon sensitivity analysis, (gender-specific cancers removed from analysis), the significant improvement in SOSGOQ physical, mental, and social subdomains and on SF-36 domains disappeared for females. Males experienced higher rates of postoperative complications. Kaplan-Meier survival analysis of both the overall and sensitivity analysis cohorts showed females lived longer than males after treatment (P=0.001 and 0.043, respectively). Both males and females experienced significantly improved HRQoL scores after treatment, but females demonstrated longer survival and a lower complication rate. This study suggests that gender may be a prognostic factor in survival and clinical outcomes for patients undergoing treatment for spine metastases and should be taken into consideration when counseling patients accordingly.

Three-dimensional body composition parameters using automatic volumetric segmentation allow accurate prediction of colorectal cancer outcomes.

Parameters obtained from two-dimensional (2D) cross-sectional images have been used to determine body composition. However, data from three-dimensional (3D) volumetric body images reflect real body composition more accurately and may be better predictors of patient outcomes in cancer. This study aimed to assess the 3D parameters and determine the best predictive factors for patient prognosis. Patients who underwent surgery for colorectal cancer (CRC) between 2010 and 2016 were included in this study. Preoperative computed tomography images were analysed using an automatic segmentation program. Body composition parameters for muscle, muscle adiposity, subcutaneous fat (SF) and abdominal visceral fat (AVF) were assessed using 2D images at the third lumbar (L3) level and 3D images of the abdominal waist (L1-L5). The cut-off points for each parameter were determined using X-tile software. A Cox proportional hazards regression model was used to identify the association between the parameters and the treatment outcomes, and the relative influence of each parameter was compared using a gradient boosting model. Overall, 499 patients were included in the study. At a median follow-up of 59months, higher 3D parameters of the abdominal muscles and SF from the abdominal waist were found to be associated with longer overall survival (OS) and disease-free survival (all P<0.001). Although the 3D parameters of AVF were not related to survival outcomes, patients with a high AVF volume and mass experienced higher rate of postoperative complications than those with low AVF volume (27.4% vs. 18.7%, P=0.021, for mass; 27.1% vs. 19.0%, P=0.028, for volume). Low muscle mass and volume (hazard ratio [HR] 1.959, P=0.016; HR 2.093, P=0.036, respectively) and low SF mass and volume (HR 1.968, P=0.008; HR 2.561, P=0.003, respectively), both in the abdominal waist, were identified as independent prognostic factors for worse OS. Along with muscle mass and volume, SF mass and volume in the abdominal waist were negatively correlated with mortality (all P<0.001). Both AVF mass and volume in the abdominal waist were positively correlated with postoperative complications (P<0.05); 3D muscle volume and SF at the abdominal waist were the most influential factors for OS. 3D volumetric parameters generated using an automatic segmentation program showed higher correlations with the short- and long-term outcomes of patients with CRC than conventional 2D parameters.

Recovery of surgery in the elderly (ROSE)program: The efficacy of a multi-modal prehabilitation program implemented in frail and pre-frail elderly undergoing major abdominal surgery.

Major abdominal surgery is associated with a high rate of post-operative complications with increased risk of adverse surgical outcomes due to the presence of frailty. This study aims to evaluate the effectiveness of the multimodal Recovery of Surgery in the Elderly (ROSE) prehabilitation program with supervised exercise in mitigating postoperative functional decline when compared to standard care. The ROSE program enrolled ambulant patients who were 65years and above, had a Clinical Frailty Scale score of 4 or more and were planned for major abdominal surgery. Participation in supervised exercise sessions before surgery were compared with standard physiotherapy advice. The primary outcome was 6-min walk test (6MWT) distance assessed at baseline, after prehabilitation and 30days follow-up after surgery. Secondary outcomes included physical performance, length of hospital stay and postoperative morbidity. Data from 74 eligible patients, 37 in each group, were included. Median age was 78years old. Forty-two patients (22 in Prehab group and 20 in control group) with complete 6MWT follow-up data at 30days follow-up were analysed for outcomes. Most patients underwent laparoscopic surgery (63.5%) and almost all of the surgeries were for abdominal malignancies (97.3%). The Prehab group had an increase in 6MWT distance at the 30-day follow up, from a baseline mean (SD) of 277.4 (125) m to 287.6 (143.5) m (p=0.415). The 6MWT distance in the control group decreased from a baseline mean (SD) of 281.7 (100.5) m to 260.1 (78.6) m at the 30-day follow up (p=0.086). After adjusting for baseline 6MWTdistance and frailty score, the Prehab group had significantly higher 6MWT distance at 30-day follow-up than control (difference in adjusted means 41.7m, 95% confidence interval 8.7-74.8m, p=0.015). There were no significant between-group differences in the secondary outcomes. A multimodal prehabilitation program with supervised exercise within a short time frame can improve preoperative functional capacity and maintain baseline functional capacity in frail older adults undergoing major abdominal surgery.

Effect of intraoperative blood loss on postoperative complications and prognosis of patients with colorectal cancer: A meta‑analysis.

The purpose of the present study was to evaluate whether the amount of intraoperative blood loss (IBL) affects the complications and prognosis of patients with colorectal cancer (CRC). The PubMed, EMBASE and the Cochrane Library databases were used to search for eligible studies from inception to November 30, 2020. Hazard ratios (HRs) and 95% confidence intervals (Cls) were pooled up. The overall survival (OS) and disease-free survival (DFS) were compared between the larger IBL group and the smaller IBL group. The present study was performed with RevMan 5.3 (The Cochrane Collaboration). A total of seven studies involving 1,540 patients with CRC were included in the present study. The smaller IBL group had a higher rate of OS (HR=1.45, 95% CI=1.17 to 1.8, P=0.0007) and a higher rate of DFS (HR=1.76, 95% CI=1.40 to 2.21, P<0.00001). Furthermore, the larger IBL group had a higher rate of postoperative complications than the smaller IBL group (odds ratio=2.06, 95% CI=1.72 to 2.15, P<0.00001). In conclusion, a smaller IBL was associated with better OS and DFS, and a lower risk of postoperative complications compared with a larger IBL in patients with CRC, suggesting that surgeons should pay more attention during perioperative management and surgical operation to reduce IBL.

Hoffa fractures are associated with concomitant soft tissue injures and a high postoperative complication rate

IntroductionHoffa fractures are a rare and often overlooked entity. The main goal of surgical treatment is to restore the articular surface and maintain knee function. However, current clinical data indicate heterogeneous outcomes. The aim of this multicenter study was to obtain a representative data set of patients with isolated Hoffa fractures with special emphasis on concomitant soft tissue injuries, diagnostic algorithms, treatment strategies and functional outcomes.Materials and methodsParticipating Level I trauma centres were asked to review their internal database for isolated Hoffa fractures treated surgically between 2010 and 2020. Demographics, mechanism of injury, diagnostic and therapeutic algorithm, Letenneur classification, concomitant soft tissue injuries, and postoperative knee function and complications were analysed.ResultsA total of 56 patients from six participating trauma centres were included. The median age at injury was 45 years (15–94) with a median follow-up of 19 months (2–108). The most common mechanism of injury was high-energy trauma, with unicondylar lateral Letenneur type I and II fractures being the most common. Surgical treatment was independent of the type of fracture and included isolated screw fixation, combined plate and screw fixation and isolated plate osteosynthesis. Isolated screw fixation resulted in significantly better range of motion (ROM) values (p = 0.032), but the highest number of postoperative complications (n = 14/20, n.s.) compared to the other fixation techniques. The highest number of fixation failures requiring revision was observed in the plate and screw fixation group (n = 3/8, p = 0.008). Osteochondral flake fractures (n = 12/43, 27%) and lateral meniscus injuries (n = 5/49, 10%) were commonly seen in Hoffa fractures.ConclusionsTreatment of Hoffa fractures with screw fixation resulted in significantly better functional outcomes, probably due to less comminuted fractures. Concomitant cartilage, meniscal and ligamentous injuries are common and warrant preoperative recognition and management.

Abdominal wall mass resections: single-center closure practices and outcomes following oncologic resections of abdominal wall fascia.

Radical resections for abdominal wall tumors are rare, thus yielding limited data on reconstruction of defects. We describe surgical management and long-term outcomes following radical tumor resection. This was a single-center retrospective review of patients between January 2010 and December 2022. Variables included operative characteristics, wound complications, hernia development, tumor recurrence, and reoperation. A multivariable analysis compared wound morbidity for suture and mesh repairs while adjusting for defect width, fascial closure, and CDC wound class. 120 patients were identified. Mean follow-up was 3.9 ± 3.4years. Seventy-five (62.5%) of the masses were primary; most commonly desmoid (n = 25) and endometrioma (n = 27). Forty-five masses were metastases. Mean tumor width was 6.2 ± 3.4cm; mean defect width was 8.1 ± 4.1cm. Sixty-one patients (50.8%) had mesh placed, with variation in technique. Postoperative CT scans were available for 88 (73.3%) patients. Forty SSOs (33.3%), 11 SSIs (9.2%), and 18 (15%) SSOPIs occurred within 30 days. On multivariable analysis, increased defect width was associated with SSOPI (OR 1.17, p = 0.041) and CDC wound class II-III was associated with SSI (OR 8.38 and 49.1, p < 0.05) and SSOPI (OR 5.77 and 17.4, p < 0.05); mesh was not associated with these outcomes. Seven patients (5.8%) underwent 30-day reoperations and 35 (20.8%) required additional operations after 30 days. Thirteen percent developed abdominal wall (n = 8) or intra-abdominal tumor recurrence (n = 8) requiring reoperation. Twenty-seven (22.5%) patients developed hernias with a mean fascial defect width of 9.8 ± 7.2cm. Abdominal wall mass resections are morbid, often contaminated cases with high postoperative complication rates. Risks and benefits of mesh implantation should be tailored on an individual basis.

Morphological Classification of Pituitary Tumors With Suprasellar Extension.

The objective of this study was to study the association among various morphological parameters and surgical outcomes in pituitary macroadenomas with suprasellar extension. MRI studies of 160 patients undergoing endoscopic transsphenoidal resection of pituitary macroadenomas with suprasellar extension were reviewed. In the coronal plane, tumors were classified into Type 1 (dome-shaped, no constriction at the level of diaphragma sellae) and Type 2 (dumbbell-shaped, with constriction at the level of diaphragma sellae). Based on the dome-to-neck ratio (D/Nr), Type 2 tumors were further classified as Type 2A (wide neck; D/Nr >1 and <1.3) and Type 2B (narrow neck; D/Nr ≥1.3). Surgical outcomes and complications were analyzed using a logistic regression model. Overall extent of resection (EOR) and presence of residual sellar-suprasellar tumor was separately assessed in all patients with available postoperative MRI (n = 149). There were 108 Type 1 tumors and 26 patients each in the Type 2A and Type 2B subgroups. Tumor subtype was significantly associated with tumor size (P < .001), intraoperative cerebrospinal fluid leak (P < .001), EOR (P < .001), postoperative suprasellar residual tumor (P < .001), and postoperative complications, including diabetes insipidus (P = .005) and visual worsening (P = .003). On multivariate analysis, after adjusting for confounders, Type 2B tumors were negatively associated with EOR (odds ratio [OR] 0.22; 95% CI 0.07-0.68; P = .008) and associated with the presence of postoperative suprasellar residual tumor (OR 18.08; 95% CI 5.20-62.89; P < .001), intraoperative cerebrospinal fluid leak (OR 5.33; 95% CI 1.89-14.99; P = .002), and postoperative diabetes insipidus (OR 4.89; 95% CI 1.67-14.35; P < .001). Preoperative tumor classification based on D/Nr is clinically and surgically relevant, and Type 2B macroadenomas are significantly associated with lower rates of gross total resection and higher rates of postoperative complications after endoscopic transsphenoidal resection.

Opioid Use Disorder in Patients Undergoing Major Lower Extremity Amputation: Prevalence and Outcomes.

Patients with a history of Opioid Use Disorder (OUD) have higher postoperative complication rates and mortality in many settings. Yet, it remains poorly understood how the opioid epidemic has affected patients undergoing major lower extremity amputation (LEA) and whether outcomes differ by OUD status. We conducted a retrospective chart review of all 689 patients who underwent major LEA at a large tertiary referral center from 2015 to 2021. This study assessed patient characteristics and long-term postoperative outcomes for patients with preoperative OUD. 133 (19.3%) patients had a lifetime history of preoperative OUD. Preoperative OUD was associated with key characteristics, comorbidities, and outcome measures. OUD was significantly associated with younger age (P < .001), black race (P = .026), single relationship status (P < .001), BMI <30 (P = .024), no primary care provider (P = .004), and Medicaid insurance (P < .001). Comorbidities significantly associated with OUD include current smoking (P < .001), Human Immunodeficiency Virus (HIV; P = .003), and history of osteomyelitis (P < .001). Preoperative OUD independently predicted lower rates of 30-60-day readmission (odds ratio [OR] .54, P = .018) and 1-12-month reamputation (OR .41, P = .006). There was no significant difference in long-term mortality and follow-up. This study demonstrates the prevalence of OUD in patients undergoing major LEA and reports associations and long-term outcomes. Our findings highlight the importance of recognizing OUD and raise questions about the mechanisms underlying its relation to rates of postoperative readmission and reamputation.

Robotic Distal Pancreatectomy Yields Superior Outcomes Compared to Laparoscopic Technique: A Single Surgeon Experience of 123 Consecutive Cases.

Technical limitations of laparoscopic distal pancreatectomy (LDP), in comparison to robotic distal pancreatectomy (RDP), may translate to high conversion rates and morbidity. LDP and RDP procedures performed between December 2008 and January 2023 in our tertiary referral hepatobiliary and pancreatic centres were analysed and compared with regard to short-term outcomes. A total of 62 consecutive LDP cases and 61 RDP cases were performed. There was more conversion to open surgeries in the laparoscopic group compared with the robotic group (21.0% vs. 1.6%, p = 0.001). The LDP group also had a higher rate of postoperative complications (43.5% vs. 23.0%, p = 0.005). However, there was no significant difference between the two groups in terms of major complication or pancreatic fistular after operations (p = 0.20 and p = 0.71, respectively). For planned spleen-preserving operations, the RDP group had a shorter mean operative time (147 min vs. 194 min, p = 0.015) and a reduced total length of hospital stay compared with the LDP group (4 days vs. 7 days, p = 0.0002). The failure rate for spleen preservation was 0% in RDP and 20% (n = 5/25) in the LDP group (p = 0.009). RDP offered a better method for splenic preservation with Kimura's technique compared with LDP to avoid the risk of splenic infarction and gastric varices related to ligation and division of splenic pedicles. RDP should be the standard operation for the resection of pancreatic tumours at the body and tail of the pancreas without involving the celiac axis or common hepatic artery.

Real-life Perioperative Outcomes of Radical Prostatectomy using the French National Registry: A Plea for Promotion of Centralized Care and Access to Minimally Invasive Approaches

Radical prostatectomy (RP) can be performed using an open (ORP), laparoscopic (LRP) or robotic (RARP) approach. Most studies, even in experienced centers, have not provided solid evidence demonstrating better outcomes when using the robotic approach. In addition, one of the remaining concerns about RARP is its cost effectiveness, leading to no reimbursement for this surgical technique in some countries and thus health care inequality. We used data from a French national registry to improve knowledge of RP outcomes in a real-world scenario in order to guide and inform health care decision-makers. A total of 21 213 RP procedures were performed in 645 French centers in 2021 (ORP 20%, LRP 25%, and RARP 55% of cases). ORP was associated with longer hospital stay (p < 0.001), higher rates of postoperative complications (p < 0.001), fewer days out of hospital within 90 d of surgery (81.7 vs 83.6 vs 84.9 d for ORP vs LRP vs RARP; p < 0.00), and higher hospitalization costs (€2424 vs €1789 vs €1302). RARP is an optimal and cost-effective approach, with several advantages over ORP. Our data can be used by health care decision-makers to facilitate access to and reimbursement for the robotic approach for RP indications. Patient summaryFor men with prostate cancer for whom surgery is recommended, surgeons can remove the prostate using open surgery or a keyhole approach with or without robot assistance. Open surgery has higher costs, more complications, and longer hospital stays.

Outcomes of Total Joint Arthroplasty Subsequent to Ostomy: A Case Series

BackgroundOstomy surgery is associated with a high rate of postoperative complications and poses several theoretical concerns for subsequent total joint arthroplasty (TJA). There is concern that ostomy may negatively impact nutrition or increase risk of known gastrointestinal (GI) complications such as obstruction, constipation, or diarrhea, particularly with the use of postoperative opioids. There is also concern that the open nature of the ostomy may increase the risk of infection. This case series reports outcomes and assesses the risk associated with TJA in patients with previous surgical history of intestinal ostomy. MethodsThis is an institutional review board-approved retrospective case series of patients with surgical history of ostomy who underwent total hip or total knee arthroplasty. Cohort consisted of 14 cases in 10 patients and was examined to report individual TJA and ostomy procedural details and outcomes. ResultsOf the 14 cases, none required GI clearance or prophylaxis outside of standard perioperative antibiotics prior to TJA surgeries, and all TJAs resulted in good outcomes. Four cases (29%) had a complication, although only 2 of these were GI complications and none were life-threatening or required further surgery. The first of the 2 experienced increased ostomy output, and symptoms were resolved promptly with rehydration. The second experienced decreased ostomy output, and symptoms were resolved promptly with changes in prn pain medications. Other complications were postoperative urinary tract infection and syncopal episode. ConclusionsTJA can be performed safely in the setting of ostomy with major consideration being risk of diarrhea or constipation during postoperative period.

Decellularization of Massive Bone Allografts By Perfusion: A New Protocol for Tissue Engineering.

In terms of large bone defect reconstructions, massive bone allografts may sometimes be the only solution. However, they are still burdened with a high postoperative complication rate. Our hypothesis is that the immunogenicity of residual cells in the graft is involved in this issue. Decellularization by perfusion might therefore be the answer to process and create more biologically effective massive bone allografts. Seventy-two porcine bones were used to characterize the efficiency of our sodium hydroxide-based decellularization protocol. A sequence of solvent perfusion through each nutrient artery was set up to ensure the complete decellularization of whole long bones. Qualitative (histology and immunohistochemistry [IHC]) and quantitative (fluoroscopic absorbance and enzyme-linked immunosorbent assay) evaluations were performed to assess the decellularization and the preservation of the extracellular matrix in the bone grafts. Cytotoxicity and compatibility were also tested. Comparatively to nontreated bones, our experiments showed a very high decellularization quality, demonstrating that perfusion is mandatory to achieve an entire decellularization. Moreover, results showed a good preservation of the bone composition and microarchitecture, Haversian systems and vascular network included. This protocol reduces the human leukocyte antigen antigenic load of the graft by >50%. The majority of measured growth factors is still present in the same amount in the decellularized bones compared to the nontreated bones. Histology and IHC show that the bones were cell compatible, noncytotoxic, and capable of inducing osteoblastic differentiation of mesenchymal stem cells. Our decellularization/perfusion protocol allowed to create decellularized long bone graft models, thanks to their inner vascular network, ready for in vivo implantation or to be further used as seeding matrices.

Pattern of Residual Submucosal Involvement after Neoadjuvant Therapy for Rectal Cancer: A Rationale for the Utility of Endoscopic Submucosal Resection.

Background and Objectives: Full-thickness trans anal local excision for tumors with favorable response following neoadjuvant therapy for locally advanced rectal cancer (LARC) is a common strategy for organ preservation, but it could be associated with a high rate of postoperative complications. We describe the incidence and pattern of submucosal involvement in surgical specimens following neoadjuvant therapy for LARC and whether limiting local excision of the residual tumor bed to only mucosal/submucosal layers of the rectal wall is sufficient for accurately predicting the ypT status of residual cancer, providing a pathological rationale to replace full-thickness local excision by endoscopic submucosal resection. Materials and Methods: This was a single-institution retrospective study conducted at a teaching community hospital. We reviewed clinical and pathological findings with slides of 82 patients diagnosed with LARC treated at our center between 2006 and 2020. Eligibility criteria mirrored our current organ preservation trials. Results: No tumor was found in surgical specimens in 28 cases (34%). Additionally, 4, 22, 27, and 1 cases were staged as ypT1, ypT2, ypT3, and ypT4, respectively. Residual malignant cells were found in the submucosal layer in 98% of cases with ypT+ stage, with 'skip lesions' in only 2% of cases. Conclusions: A very high incidence of submucosal involvement is noticed in residual tumors after neoadjuvant therapy, providing pathological rationale to study the role of endoscopic submucosal resection as a restaging tool for tumors with favorable response after neoadjuvant therapy when organ preservation strategy is pursued. This study was limited by its retrospective design and relatively small number of patients.

Is Operative Time Associated With Obesity-related Outcomes in TKA?

Obesity-based cutoffs in TKA are premised on higher rates of postoperative complications. However, operative time may be associated with postoperative complications, leading to an unnecessary restriction of TKA in patients with obesity. If operative time is associated with these obesity-related outcomes, it should be accounted for in order to ensure all measurable factors associated with negative outcomes are examined for patients with obesity after TKA. We asked: (1) Is operative time, controlling for BMI class, associated with readmission, reoperation, and postoperative major and minor complications? (2) Is operative time associated with a difference in the direction or strength of obesity-related adverse outcomes? In this comparative study, we extracted all records on elective, unilateral TKA between January 2014 and December 2020 in the American College of Surgeons National Surgical Quality Improvement Program database, resulting in an initial sample of 394,381 TKAs. Patients with emergency procedures (0.1% [270]) and simultaneous bilateral TKAs (2% [8736]), missing or null data (1% [4834]), and those with operative times less than 25 minutes (0.1% [548]) were excluded, leaving 96% (379,993) of our original sample size. The National Surgical Quality Improvement Program database was selected because of its inclusion of operative time, which is not found in any other national database. BMI was subdivided into underweight (BMI < 18.5 kg/m 2 , < 1% [719]), normal weight (BMI 18.5 to 24.9 kg/m 2 , 9% [34,513]), overweight (BMI 25.0 to 29.9 kg/m 2 , 27% [101,538]), Class I obesity (BMI 30.0 to 34.9 kg/m 2 , 29% [111,712]), Class II obesity (BMI 35.0 to 39.9 kg/m 2 , 20% [76,605]), and Class III obesity (BMI ≥ 40.0 kg/m 2 , 14% [54,906]). The mean operative time was 91 ± 36 minutes, 61% of patients were women (233,062 of 379,993), and the mean age was 67 ± 9 years. Patients with obesity tended to be younger and more likely to have preoperative comorbidities and longer operative times than patients with normal weight. Multivariable logistic regression models examined the main effects of operative time with respect to 30-day readmission, reoperation, and major and minor medical complications, while adjusting for BMI class and other covariates including age, sex, race, smoking status, and number of preoperative comorbidities. We then evaluated the potential interaction effect of BMI class and operative time. This interaction term helps determine whether the association of BMI with postoperative outcomes changes based on the duration of the surgery, and vice versa. If the interaction term is statistically significant, it implies the association of BMI with adverse postoperative outcomes is inconsistent across all patients. Instead, it varies with the operative time. Adjusted odds ratios and 95% confidence intervals were calculated, and interaction effects were plotted. After controlling for obesity, longer procedure duration was independently associated with higher odds of all outcomes (30-minute estimates; adjusted ORs are per minute), including readmission (9% per half-hour of surgical duration; adjusted OR 1.003 [95% CI 1.003 to 1.004]; p < 0.001), reoperation (15% per half-hour of surgical duration; adjusted OR 1.005 [95% CI 1.004 to 1.005]; p < 0.001), postoperative major complications (9% per half-hour of surgical duration; adjusted OR 1.003 [95% CI 1.003 to 1.004]; p < 0.001), and postoperative minor complications (18% per half-hour of surgical duration; adjusted OR 1.006 [95% CI 1.006 to 1.007]; p < 0.001). The interaction effect indicates that patients with obesity had lower odds of reoperation than patients with normal weight when operative times were shorter, but higher odds of reoperation with a longer operative duration. We found that operative time, a proxy for surgical complexity, had a moderate, differential association with obesity over a 30-minute period. Perioperative modification of surgical complexity such as surgical techniques, training, and team dynamics may make safe TKA possible for certain patients who might have otherwise been denied surgery. Decisions to refuse TKA to patients with obesity should be based on a holistic assessment of a patient's operative complexity, rather than strictly assessing a patient's weight or their ability to lose weight. Future studies should assess patient-specific characteristics that are associated with operative time, which can further push the development of techniques and strategies that reduce surgical complexity and improve TKA outcomes. Level III, therapeutic study.

α-HBDH is a Superior to LDH in Predicting Cardiac Injury in Patients with Acute Aortic Dissection

Objective: Acute aortic dissection (AAD) has a high rate of mortality and postoperative complications, but fewer indicators can predict postoperative cardiac injury complications. This study aimed to investigate whether α-HBDH is superior to LDH as a predictor of in-hospital mortality and postoperative cardiac injury in patients with AAD. Methods: In this retrospective study, a total of 369 patients from 2015 to 2021 were enrolled and divided into three groups (T1: low, T2: medium and T3: high) based on the tertiles of α-HBDH levels on admission. The relationship between α-HBDH and AAD was determined by correlation analysis and logistic regression model, with the consolidation using Kaplan-Meier and restricted cubic spline (RCS) analysis for predicting the in-hospital death and cardiac injury complications. Last, the relationship between α-HBDH levels and in-hospital mortality and cardiac injury was further verified through subgroup analysis. Results: In the logistic regression model, α-HBDH in the high-level group was 9.869 times that in the low-level group [OR (95CI): 9.869 (2.148-45.349), P=0.003], while this feature was not observed in LDH [OR (95CI): 1.437 (0.342-6.034), P=0.621]. Kaplan-Meier analysis showed that increased α-HBDH levels within 30 days were associated with poor survival within 30 days in AAD patients (log rank test, P&lt;0.01), especially in acute stanford A dissection. RCS showed that 204 U/L was the optimal cut-off value of α-HBDH for in-hospital mortality and postoperative cardiac injury, which facilitated clinical stratification of patients with AAD. Subgroup analysis confirmed a stable correlation between α-HBDH level and hospital mortality and cardiac injury (P&gt;0.05). Conclusion: α-HBDH would be better than LDH in predicting the in-hospital death and postoperative cardiac injury, guiding admission stratification of patients with AAD.

The effect of Section 1557 of the Affordable Care Act on surgical outcomes in non-English primary language speakers

BackgroundIn 2016, Section 1557 mandated use of qualified language interpreter services. We examined the effect of Section 1557 on surgical outcomes. MethodsUtilizing the Healthcare Cost and Utilization Project State Inpatient Database (2013–2020), we performed a difference-in-differences analysis of adult surgical patients (Maryland, New Jersey). The exposure was implementation of Section 1557 (pre-period: 2013–2015; post-period: 2017–2020). The treatment group was non-English primary language speakers (n-EPL). The comparison group was English primary language speakers (EPL). Outcomes included length-of-stay, postoperative complications, mortality, discharge disposition, and readmissions. ResultsAmong 2,298,584 patients, 198,385 (8.6%) were n-EPL. After implementation of Section 1557, n-EPL saw no difference in readmission rates but did experience significantly higher rates of mortality (+0.43%, p ​= ​0.049) and non-routine discharges (+1.81%, p ​= ​0.031) in Maryland, and higher rates of post-operative complications (+0.31%, p ​= ​0.001) in both states, compared to pre-Section 1557. ConclusionsContrary to our hypothesis, Section 1557 did not improve surgical outcomes for n-EPL.