Surgical Cases Research Articles

Radial Longitudinal Deficiency: Description of a Novel Surgical Technique and Clinical Cases

Radial longitudinal deficiency III and IV present as a short upper limb, functional elbow, and wrist with severe radial and palmar angulation, where the carpus articulates with the radial and palmar edge of the ulna, allowing limited mobility in a nonfunctional position. Surgical treatment aims to correct radial angulation and flexed carpal position, often altering carpal positioning over the distal ulna and impacting wrist mobility. In addition, fixation through distal ulnar epiphysis affects its growth. Although these procedures improve appearance, functionality remains suboptimal. This study describes a novel ulnar osteotomy and extensor carpi ulnaris transfer for the correction of wrist deformity in radial longitudinal deficiency with preservation of ulnocarpal motion and epiphyseal growth. The surgical technique, indications, contraindications, and potential complications are described. Three cases with postoperative follow-ups at 36, 12, and 6 months, evaluating deformity and pre/postsurgical wrist mobility ranges, are reported. A correction was achieved in the forearm-hand angle of 71 to 88 degrees of the initial. The total range of movement, between 50 degrees and 80 degrees, was almost the same before and after the operation in the most anatomic position. In one patient, there was a residual deformity at the dorsoradial border, which showed no progression during the last 6 months of follow-up. For patients with radial longitudinal deficiency, functional outcomes with preserved mobility appear to hold greater significance. The technique described in this study enabled deformity correction while maintaining a wide range of motion. The preservation of the physis in a different orientation is an aspect that will need evaluation in long-term follow-up but offers potential treatment options in the future; due to the unknown of the secondary deformity, it is recommended that the long-term results should be awaited before adoption of this technique.

Implementation of the WHO surgical safety checklist in resource-limited Somalia: a new standard in surgical safety

BackgroundSurgical safety remains a critical global health concern, with complications from surgical procedures resulting in significant morbidity and mortality, particularly in low- and middle-income countries. The World Health Organization (WHO) Surgical Safety Checklist (SSC) has been shown to reduce surgical complications and mortality rates. However, its implementation and impact in resource-limited settings like Somalia remain understudied. This study aimed to evaluate the implementation of the WHO SSC in selected hospitals in Mogadishu, Somalia, and assess its impact on surgical safety practices.MethodsA pre- and post-intervention study was conducted in 15 randomly selected hospitals in Mogadishu, Somalia. The intervention involved a comprehensive training program on the WHO SSC for surgical teams. Data on hospital characteristics, surgical details, and adherence to the SSC were collected over two periods: pre-intervention (April 12th to May 4th, 2024) and post-intervention (May 12th to June 3rd, 2024). The primary outcome was the adherence to the SSC, categorized as good (> 60%) or poor (≤ 60%). Descriptive statistics, McNemar’s test, and binary logistic regression were used for data analysis.ResultsAdherence to the WHO SSC significantly improved post-intervention, with 98.8% of surgical cases demonstrating good adherence compared to 37% pre-intervention (p < 0.001). The mean adherence score increased from 51.6% (SD = 29.6) to 94.1% (SD = 8.2). Significant improvements were observed for most individual checklist items, including patient identity confirmation, surgical site marking, anesthesia machine checks, and pulse oximeter use (p < 0.001). Team dynamics and communication also improved significantly post-intervention. Hospital type, size, years of service, funding source, surgical department, surgery type, urgency, and staff numbers were associated with checklist adherence pre-intervention.ConclusionThe implementation of a comprehensive training intervention significantly improved adherence to the WHO Surgical Safety Checklist in resource-limited hospitals in Mogadishu, Somalia. The findings highlight the feasibility and effectiveness of the SSC in enhancing surgical safety practices, team communication, and patient outcomes in challenging healthcare environments. Tailored implementation strategies, ongoing training, and cultural adaptation are crucial for the successful adoption of the SSC in resource-constrained settings.

Hand Surgical Operating Room Size Allocation: A Comparative Space Utilisation Study.

Background: This study evaluated operating room (OR) space required for various hand surgical procedures. We analysed the size requirements for hand surgical cases divided into four settings: (1) large OR setting requiring fluoroscopy and microsurgical equipment, (2) medium-sized OR setting for cases requiring fluoroscopy, (3) smaller OR setting and (4) minor procedural room without anaesthesia with the aim to describe room size requirements for hand surgery practices. Methods: A variety of hand surgical cases were selected: large cases (microvascular digit replantation), medium-sized cases (closed reduction percutaneous pinning [CRPP] of phalangeal fractures) and smaller cases (carpal tunnel release [CTR]) with and without anaesthesia. Space requirements were compared to general surgery cases (laparoscopic appendectomy) and general orthopaedic surgery cases (cephalomedullary nail [CMN]). Necessary operative equipment was measured (ft2) to calculate requirements for each procedure. Results: Large hand cases such as digit replantation necessitated the most OR space (125 ft2), followed by general orthopaedic cases (CMN; 118 ft2), medium-sized hand cases (CRPP phalanx; 107 ft2), general surgery laparoscopic appendectomy (68 ft2), small hand cases (CTR; 85 ft2) and minor procedures (49 ft2). Conclusions: Hand procedures can be divided into major procedures requiring significant OR space (125 ft2), medium procedures in standard OR suites (107 ft2), procedures in small ORs with anaesthesia (81 ft2) or office-based setting without anaesthesia (49 ft2). These findings help define space utilisation for hand procedures and may have practical implications related to efficiency, cost and patient safety in the hospital and outpatient setting. Level of Evidence: Level IV (Economic and Decision Analyses).

Comparative analysis of pre-operative findings and post-operative outcomes in primary and secondary macular holes at a tertiary eye hospital in South India

PurposeThis study aimed to compare demographics, clinical characteristics, and post-surgical outcomes between idiopathic and secondary full-thickness macular holes (MHs).MethodsA retrospective analysis of 348 eyes from 339 patients treated between June 2017 and December 2023 was conducted. The study included both idiopathic and secondary MHs, excluding cases where surgery was not performed or lacked sufficient follow-up. Demographic data, visual acuity (VA), ocular characteristics, and optical coherence tomography measurements were analyzed.ResultsIdiopathic MHs were identified in 308 eyes (89%), and secondary MHs in 40 eyes (11%). Idiopathic MH patients were older (mean age: 68.26 vs. 60.13 years; p = 0.001) and more commonly female (63% vs. 40%; p = 0.005). Post-surgical closure was achieved in 86% of all MHs, with a median VA improvement of 15 ETDRS letters (3 Snellen lines). However, secondary MHs had a lower closure rate (67% vs. 89%, p = 0.001) and less VA improvement (2 lines vs. 3 lines, p = 0.001) compared to idiopathic MHs. Significant differences in maximal basal diameter and diameter hole index were noted between the groups.ConclusionsSecondary MHs, accounting for 11% of surgical cases, show poorer anatomical and visual outcomes than idiopathic MHs. Despite lower success rates, early surgical intervention in secondary MHs is recommended to enhance outcomes. Differentiating between idiopathic and secondary MHs is crucial for optimal management.

Time-Driven, Activity-Based Cost Analysis of Pars Plana Vitrectomy in Rhegmatogenous Retinal Detachment at a Large Academic Center.

Purpose: To perform a time-driven, activity-based cost analysis of retinal detachment (RD) surgery and compare it with reimbursement rates. Methods: This economic analysis at a single academic institution used time-driven, activity-based costing methodology to determine the cost of rhegmatogenous RD repair with primary pars plana vitrectomy. A process flow map was created to highlight each surgical case's operative episodes, including clinical follow-ups. Time logs were obtained from the electronic health record for each operative phase and clinical follow-up. The overhead and anesthesia costs were collected from the institution's cost accounting system. The direct material and personnel costs were obtained from internal financial data. Results: Seventy-six cases that met the inclusion criteria were included in the cost analysis study. The time-driven, activity-based cost of RD was $6247.17, and the reimbursement was $5442.91. Therefore, each procedure had a net negative loss of $804.26. To break even, the average operation time would need to be reduced from the determined average of 90.49 minutes to 64.90 minutes. Conclusions: This study found that Medicare underestimates the true cost of RD surgery. Changes in referral patterns may be motivated by reimbursement rates lower than the cost of the procedure, which could ultimately affect patient access to care.

Enhanced recovery after fetal spina bifida surgery: global practice.

Enhanced recovery after surgery (ERAS) protocols are multimodal evidence-based care plans that have been adopted for multiple surgical procedures to promote faster and better patient recovery and shorter hospitalization. This study aimed to explore whether worldwide fetal therapy centers offering prenatal myelomeningocele repair implement the ERAS principles and to provide recommendations for improved perioperative management of patients. In this survey study, a total of 53 fetal therapy centers offering prenatal surgery for open spina bifida were identified and invited to complete a digital questionnaire covering their pre-, intra- and postoperative management. An overall score was calculated per center based on compliance with 20 key ERAS principles, extrapolated from ERAS guidelines for Cesarean section, gynecological oncology and colorectal surgery. Each item was awarded a score of 1 or 0, depending, respectively, on whether the center did or did not comply with that principle, with a maximum score of 20. The questionnaire was completed by 46 centers in 17 countries (response rate, 87%). In total, 22 (48%) centers performed exclusively open fetal surgery (laparotomy and hysterotomy), whereas 14 (30%) offered both open and fetoscopic procedures and 10 (22%) used only fetoscopy. The perioperative management of patients undergoing fetoscopic and open surgery was very similar. The median ERAS score was 12 (range, 8-17), with a mean ± SD of 12.5 ± 2.4. Center compliance was the highest for the use of regional anesthesia (98%), avoidance of bowel preparation (96%) and thromboprophylaxis (96%), while the lowest compliance was observed for preoperative carbohydrate loading (15%), a 2-h fasting period for clear fluids (20%), postoperative nausea and vomiting prevention (33%) and early feeding (35%). ERAS scores were similar in centers with a short (2-5 days), medium (6-10 days) and long (≥ 11 days) hospital stay (mean ± SD, 12.9 ± 2.4, 12.1 ± 2.0 and 10.3 ± 3.2, respectively, P = 0.15). Furthermore, there was no significant association between ERAS score and surgical technique or case volume. The perioperative management of fetal spina bifida surgery is highly variable across fetal therapy centers worldwide. Standardized protocols integrating ERAS principles may improve patient recovery, reduce maternal morbidity and shorten the hospital stay after fetal spina bifida surgery. © 2024 The Author(s). Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.

Urologic oncology case volume among early career urologists: An analysis of certification data from the American board of urology between 2003 and 2019

IntroductionThe incidence of urologic cancer is expected to increase as the U.S. population ages, but the size of the urologic workforce is not expected to increase at a commensurate rate. To understand this growing imbalance, we explored the extent to which early career urologists performed oncology cases, particularly open surgical cases, between 2003 and 2019. Materials and MethodsWe examined case logs submitted by early career urologists applying for their oral American Board of Urology Certifying Examination (Part 2) between 2003 and 2019. We included case logs spanning at least 120 days between the first and last record. We used CPT® codes to identify urologists who performed an open radical cystectomy, nephrectomy, or prostatectomy, as well as those who performed a minimally invasive (MIS) radical nephrectomy or prostatectomy. We calculated the annual percentage of urologists who performed each procedure. Multivariable logistic regression analysis analyzed the association between performing each procedure and specialization or fellowship training in oncology, adjusting for gender, practice type, and year of case log submission. ResultsWe identified 4,166 unique urologists submitting case logs between 2003 and 2019. Their average age was 34.9 years, 81.3% were male, 14.2% specialized in oncology, and 8.2% reported oncology fellowship training. From 2003 to 2019, the percentage of urologists who performed open oncologic procedures decreased, while the percentage who performed MIS oncologic procedures increased. Fellowship training in oncology significantly increased the odds of performing the following procedures: open radical cystectomy (72.5% with fellowship training vs. 30.0% without fellowship training, OR 2.51, 95% CI 0.63–0.92, P < 0.001), open radical nephrectomy (74.3% with fellowship training vs 42.4% without fellowship training, OR 2.02, 95% CI 1.48–2.78, P < 0.001), open radical prostatectomy (42.1% with fellowship training vs. 26.9% without fellowship training, OR 1.86, 95% CI 1.34–2.58, P < 0.001) and MIS radical prostatectomy (80.4% with fellowship training vs. 45.0% without fellowship training, OR 1.69, 95% CI 1.16–2.48, P = 0.006). When comparing those with solely oncology specialization to those with both oncology specialization and fellowship training, we found that those with oncology fellowship training had over 2 times higher odds of performing open radical cystectomy (OR 2.58, CI 1.78–3.74, P < 0.001), open radical nephrectomy (OR 2.06, CI 1.42–2.99, P < 0.001) and open radical prostatectomy (OR 2.12, CI 1.44–3.12, P < 0.001). Female urologists had significantly lower odds of performing each oncologic procedure. ConclusionsIn this analysis of early career urologist case logs, the proportion of urologists performing a radical cystectomy, radical nephrectomy, and open prostatectomy declined between 2003 and 2019. Oncology specialization or fellowship training, however, significantly increased the odds of performing the procedures. Specifically, oncology fellowship alone was associated with over 2 times the odds of performing major open oncologic procedures. These findings reflect ongoing specialization among early career urologists, such that an oncology fellowship or practice focus has likely become necessary for access to open urologic procedures and to become a high-volume urologic oncology surgeon.

Effects of the COVID-19 pandemic on inpatient dermatosurgery in Germany : Retrospective evaluation of the surgical cases from nine dermatology clinics

Currently, only little data is available on the impact of the COVID-19 pandemic on inpatient dermatosurgical care in German dermatological clinics. Aretrospective analysis of all dermatosurgical cases that were treated in inpatient setting in nine German dermatological clinics in four federal states in 2019, 2020 and 2021 was performed. The diagnoses were recorded using the ICD-10codes. In addition, demographic data such as age, gender and the length of inpatient stay were analysed. In 2019, 2020 and 2021, a total of 10,739, 9185 and 9828 dermatosurgical inpatients were treated respectively. Thus, the reduction of inpatient dermatosurgical cases was 14.5% in 2020 and 8.5% in 2021 compared to 2019. Inpatient surgical treatment of melanoma decreased by 10.1% of cases in 2020. This decrease was only 1.4% in 2021 compared to 2019. The number of inpatient surgeries performed for benign lesions such as melanocytic nevi or viral warts reduced sharply in both pandemic years. Our data show for the first time how inpatient care for the entire spectrum of dermatosurgical diseases developed during the COVID-19 pandemic in Germany. After the initial marked decline in inpatient dermatosurgical cases in 2020, there was less difference in 2021 compared to 2019. This trend can be interpreted as an indication that there is still astrong need for inpatient dermatosurgical care that cannot yet be met on an outpatient basis.

Learning Curve for Robotic Colorectal Surgery.

With the increasing adoption of robotic surgery in clinical practice, institutions intending to adopt this technology should understand the learning curve in order to develop strategies to help its surgeons and operating theater teams overcome it in a safe manner without compromising on patient care. Various statistical methods exist for the analysis of learning curves, of which a cumulative sum (CUSUM) analysis is more commonly described in the literature. Variables used for analysis can be classified into measures of the surgical process (e.g., operative time and pathological quality) and measures of patient outcome (e.g., postoperative complications). Heterogeneity exists in how performance thresholds are defined during the interpretation of learning curves. Factors that influence the learning curve include prior surgical experience in colorectal surgery, being in a mature robotic surgical unit, case mix and case complexity, robotic surgical simulation, spending time as a bedside first assistant, and being in a structured training program with proctorship.

Treatment Strategies for Unknown Anatomic Pathology Ventriculus Terminalis Case Series: Single Center Experience

The ventriculus terminalis is a cavity in the conus medullaris, bounded by ependymal cells, associated with the central canal. It is an anatomical structure that is very rare in adults, with a limited number of surgical cases that have been reported in the literature. In children, it is regarded as a normal congenital variation, known to regress before five years of age, and very few symptomatic cases have been reported in both pediatric and adult populations. It is often asymptomatic in adults and is detected incidentally. Although potentially nonsignificant individually, symptoms can range from nonspecific low back pain to sphincter dysfunction and focal neurologic deficits. Our purpose is to discuss our management strategy in comparison to the existing literature. A retrospective review was conducted of all adult patients (aged 17 years and older) diagnosed with ventriculus terminalis who were referred to the hospital between 2010 and 2020. Clinical classification was made according to the classification defined by Batista. In addition, Ganau's classification was also used. Five patients were included in the study. The majority of these patients (n=4, 80%) were symptomatic at the time of diagnosis, with nonspecific back pain being the most common symptom (n=3, (60%). None of the patients required neurosurgical intervention during the follow-up period of 21.6±8.9 months, as there was no clinical deterioration observed. Ventriculus terminalis is a rare pathology that may develop de novo in adults, often remaining undiagnosed until the cyst enlarges, and can manifest with a wide spectrum of symptoms. When identified, it requires careful management, involving surgery when necessary and a conservative approach when appropriate.

Two hundred and twenty-nine cases of bidirectional cavopulmonary anastomosis with and without antegrade pulmonary blood flow, a single-center experience.

Bidirectional cavopulmonary anastomosis is palliative surgical procedure for stepwise adaptation of the ventricle by time-phased relief of blood volume from the single functional ventricle. There still exists a controversial question regarding maintaining additional antegrade pulmonary blood flow. We retrospectively reviewed the surgical cases of 261 patients who underwent bidirectional cavopulmonary anastomosis in our institution from 2012 to 2022 with special regard to antegrade pulmonary blood flow as our preferred strategy. The mean age at the time of surgery was 33.1 months (range 2.9-192 months), and the mean weight was - 7.6 kg (range 3.9-38 kg). Furthermore, we divided all the patients into two groups: in group 1 (n = 182) - patients who underwent bidirectional cavopulmonary anastomosis with antegrade pulmonary blood flow, and in group 2 (n = 47) - patients without antegrade pulmonary blood flow. The mean follow-up time was 56 months (range 24-120 months). Mortality rate was 4.8 % (n = 11) in the past 10 years. Statistical difference between groups was in the following positions: group 2 had less ICU stay (p < 0.000125) and hospital stay (p < 0.017110); group 1 had a longer duration of pleural effusion (p < 0.000003) and amount of drainage output (p < 0.007), also demonstrated higher oxygen saturation (p < 0.000264) and Glenn shunt pressure (p < 0.002) after the surgery; but there was no difference in oxygen saturation after 6, 12, and 24 months; mortality in both groups has no statistic difference. Considering our experience, we take a stand on the controlled to antegrade pulmonary blood flow strategy during bidirectional cavopulmonary anastomosis.

Audit of oral neoplasms in children and young adults in Nigeria

BackgroundOrofacial neoplasms in children and young adults may differ significantly from those observed in adults. Our aim was to describe the epidemiological characteristics of histologically diagnosed orofacial neoplasms among children and young adults in Nigeria.MethodsThis was a multicenter cross-sectional study across geopolitical zones in Nigeria. Annual reports of clinical information and surgical biopsies submitted at the Oral Pathology Laboratory, clinic day registries, surgical day case registries and operative theatre registries were retrieved from January 2008 to March 2024. The relevant demographic data were obtained for each patient. The study subjects were categorized by age into children, adolescents and young adults. Tissue involvement was classified as soft tissue involvement, bony involvement or both soft tissue and bony involvement. The site and behaviour of the lesions were subdivided according to the ICD-10 codes. Statistical analysis was performed via the R programming language.ResultsA total of 1889 cases were observed during the period under review, with a mean age of 15 years. Cases were more common in females (52%) and in young adults (47%). Most cases were benign neoplasms (85%), and bony affectation (54%) was slightly predominant. Odontogenic tumours (38%) and fibro-osseous lesions (20%) were the most common category of lesions observed, whereas salivary gland tumours (2.2%) and neoplasms of epithelial origin (2.5%) were the least common. Neoplasms in children involved mostly soft tissues, whereas those in adolescents and young adults had a preference for bone (p < 0.001). In all age groups, benign lesions were mostly observed in the mouth and pharynx. For malignant lesions, in children, the bones of the skull and face were mostly involved, whereas in adolescents, the mandible was the predominant site (p < 0.001). In children, mesenchymal neoplasms were the most prevalent category of lesions, whereas in both adolescents and young adults, odontogenic tumours were more common. The proportion of malignant neoplasms in males was significantly greater than that in females (p < 0.001).ConclusionThis study revealed that although most biopsied orofacial lesions were more often benign, the proportion of malignant neoplasms in this population was greater than that previously reported.

Gender Differences in the Adoption and Utilization of Robotic-assisted Laparoscopic Surgery Among Practicing Urologists: A Study of American Board of Urology Case Logs From 2012-2022

ObjectiveTo evaluate the differential activity in robotic-assisted laparoscopic surgery (RALS) by urologic surgeon gender. MethodsThis was a retrospective study of American Board of Urology surgical case logs from 2012-2022. The CPT-coded laparoscopic procedures included were: Partial Nephrectomy (50543), Radical Nephrectomy (50545, 50546, 50548), Pyeloplasty (50544), and Sacrocolpopexy (57425). Robotic-assisted cases were co-coded with CPT S2900. Univariate analysis and multiple logistic regression analyzed the roles of physician gender and other factors on RALS utilization. A separate analysis was performed for Robotic-Assisted Laparoscopic Prostatectomy (RALP) (55866). ResultsWomen performed 10.8% of all procedures and 9.02% of robotic cases. General Urology and Urogynecology and Reconstructive Pelvic Surgery (URPS) had higher concentrations of women. Of the CPT procedures analyzed, women performed the highest percentage of sacrocolpopexies (39.2% of total), 8.09% of which were robotic. In multivariate regression, women surgeons had significantly lower odds of performing a robotic case compared to men (OR 0.803, p<0.001). Endourology, Oncology, Pediatric Urology, and URPS subspecialties were associated with RALS. Upward trends were depicted across all physicians (0.012, [0.007, 0.018], p<0.001) and for men (0.019, [0.010, 0.029], p=0.001). Women showed no significant increase in robotic usage over time (p=0.463). ConclusionsWomen have lower odds of participating in robotics, primarily specialize in URPS and their involvement in RALS is skewed toward sacrocolpopexy. As robotics continues to dominate surgical urology, ensuring equitable training opportunities is essential. Research into the roles of mentorship in residency, same gender patient-physician concordance, practice setting, and recent graduates’ referral patterns is warranted.

A Retrospective Cohort Study of the Clinical Presentation and Visual Outcomes of Blepharoptosis Treatment

Background: Blepharoptosis (ptosis) is the drooping of the upper eyelid, which can be congenital or acquired and caused by various factors. It can lead to vision impairment, such as amblyopia in children, and reduced visual fields in adults, affecting quality of life. Aim: To analyze the clinical manifestation of ptosis, specifically examining the available treatment options and evaluating the resulting visual outcomes. Methods: A comprehensive analysis was conducted on the medical records of patients diagnosed with ptosis who received treatment through both surgical and non-surgical approaches between January 2017 and December 2020. Additionally, an examination of the underlying factors contributing to the condition was performed and presented. Results: A total of 28 patients, with an average age of 31.48 ± 21.66 years, received treatment at our facilities. Out of the 26 cases of unilateral ptosis, 11 patients (43%) underwent surgery, while 15 patients (57%) were treated with medications. The majority of the surgical cases were due to congenital ptosis (8 patients), followed by traumatic ptosis (3 patients). Among the patients who did not undergo surgery, neurological ptosis was present in 6 cases, while congenital ptosis was observed in 5 cases. All cases were successfully managed, resulting in good visual acuity and no complications. Conclusion: The most prevalent type of ptosis is congenital ptosis, which primarily affects males and tends to occur more frequently in the left eye. In acquired cases, traumatic ptosis is the most commonly observed type according to this study. After undergoing surgery, patients with congenital ptosis experienced improved visual outcomes, displaying good cosmetic appearance and achieving a visual acuity of 6/6-6/18.

The Hydronephrosis Severity Index guides paediatric antenatal hydronephrosis management based on artificial intelligence applied to ultrasound images alone

Antenatal hydronephrosis (HN) impacts up to 5% of pregnancies and requires close, frequent follow-up monitoring to determine who may benefit from surgical intervention. To create an automated HN Severity Index (HSI) that helps guide clinical decision-making directly from renal ultrasound images. We applied a deep learning model to paediatric renal ultrasound images to predict the need for surgical intervention based on the HSI. The model was developed and studied at four large quaternary free-standing paediatric hospitals in North America. We evaluated the degree to which HSI corresponded with surgical intervention at each hospital using area under the receiver-operator curve, area under the precision-recall curve, sensitivity, and specificity. HSI predicted subsequent surgical intervention with > 90% AUROC, > 90% sensitivity, and > 70% specificity in a test set of 202 patients from the same institution. At three external institutions, HSI corresponded with AUROCs ≥ 90%, sensitivities ≥ 80%, and specificities > 50%. It is possible to automatically and reliably assess HN severity directly from a single ultrasound. The HSI stratifies low- and high-risk HN patients thus helping to triage low-risk patients while maintaining very high sensitivity to surgical cases. HN severity can be predicted from a single patient ultrasound using a novel image-based artificial intelligence system.

Clinical profile of patients with surgical brain abscesses and etiology in a reference hospital.

The annual incidence of brain abscesses is 1-2% in developed countries and up to 8% in developing countries. Our aim was to describe the profile and etiological agents of patients with surgical brain infections according to their nosological diagnosis on admission, and to analyze whether the initial diagnosis influenced the neurological deficit at discharge. This was an observational study with convenience sampling. All surgical cases operated between January 2017 and February 2022 with a final diagnosis of an infectious process were included. Three groups were analyzed according to admission diagnosis: a) infection, b) neoplasia, and c) miscellaneous. The time before admission, final histological diagnosis, etiological agent, length of hospital stay, and secondary neurological deficits were investigated. Descriptive and comparative statistics were used. 24 cases, including 18 (75%) men and 6 (25%) women, of ages 19 to 61 years (average 43.7 years) were studied. Nosological diagnoses on admission were infection in 9 (37.5%) patients, cerebral neoplasia in 9 (37.5%) patients, and miscellaneous diagnoses in 6 (25%) patients. Among the miscellaneous, neoplastic, and infectious groups, 33.3%, 33.3%, and 22.2% of patients were discharged with some neurological deficits with overall neurological morbidity and mortality of 29.6% and 8%, respectively. The etiological agents were Mycobacterium tuberculosis (16.6%), Streptococcus sp. (13%), Morganella morganii (8.7%), Nocardia sp. (4.3%), Cryptococcus sp. (4.3%), and Klebsiella sp. (4.3%). Nosological diagnosis on admission did not influence the percentage of patients with neurological deficits in our study. Mycobacterium was the most frequent etiological agent.

Comparison of NLP machine learning models with human physicians for ASA Physical Status classification.

The American Society of Anesthesiologist's Physical Status (ASA-PS) classification system assesses comorbidities before sedation and analgesia, but inconsistencies among raters have hindered its objective use. This study aimed to develop natural language processing (NLP) models to classify ASA-PS using pre-anesthesia evaluation summaries, comparing their performance to human physicians. Data from 717,389 surgical cases in a tertiary hospital (October 2004-May 2023) was split into training, tuning, and test datasets. Board-certified anesthesiologists created reference labels for tuning and test datasets. The NLP models, including ClinicalBigBird, BioClinicalBERT, and Generative Pretrained Transformer 4, were validated against anesthesiologists. The ClinicalBigBird model achieved an area under the receiver operating characteristic curve of 0.915. It outperformed board-certified anesthesiologists with a specificity of 0.901 vs. 0.897, precision of 0.732 vs. 0.715, and F1-score of 0.716 vs. 0.713 (all p <0.01). This approach will facilitate automatic and objective ASA-PS classification, thereby streamlining the clinical workflow.

Risk factors of postoperative trigeminal neuropathy in surgical treatment of trigeminal schwannomas.

Trigeminal schwannomas are rare benign tumors originating from the Schwann cells of the trigeminal nerve. Despite the common occurrence of trigeminal neuropathy in trigeminal schwannomas, a detailed analysis has not yet been performed because of the rarity of this disease. This study aimed to analyze trigeminal neuropathy in trigeminal schwannoma resection and identify the risk factors for postoperative worsening of trigeminal neuropathy. A retrospective analysis of 86 surgical cases was performed at our institution between 1975 and 2018. Obtained parameters included age, sex, diagnosis, reoperation, tumor size, tumor location, presence or absence of cysts, surgical approach, degree of tumor removal, and pre/postoperative trigeminal neuropathy. Uni- and multivariate analyses were performed to identify the risk factors for worsening postoperative sensory disturbances. Of 83 patients, 58.1% had preoperative trigeminal neuropathy. Postoperative sensory disturbance occurred in 27.9%, with worsening in two cases and de novo symptoms in 22 cases. Regarding risk factors for worsening postoperative sensory disturbances, older age, smaller tumor size, middle and posterior (MP) type, gross total removal (GTR), and anterior transpetrosal approach were identified in the univariate analysis, while MP type and GTR were identified in the multivariate analysis. This study analyzed trigeminal neuropathy in trigeminal schwannomas in detail and identified tumor location and removal rate as risk factors for worsening postoperative sensory disturbances. Treatment strategies to reduce the risk of trigeminal neuropathy should be considered.

Gingival augmentation of the edentulous site before implant placement using a transposed pedicled gingivectomy tissue: a novel surgical case report.

Keratinized gingiva around teeth, around edentulous sites or implants is important as it improves aesthetics, helps to maintain good oral hygiene around prosthesis, and prevents post-operative implant exposure. The amount of keratinized gingiva around teeth/prostheses is a crucial parameter that should be considered before placing the crowns and bridges around implants or edentulous teeth. The presence of adequate keratinized tissue around implants/prostheses is vital for good peri-implant health and improves the overall prognosis of the implant treatment. Augmentation of the attached gingiva is done using a free gingival graft (FGG) or alloderm. However, procurement of FGG is surgically demanding for general dentists as it technically demanding to procure the graft from the palate. Moreover, it creates a second surgical site with an increased risk of post-operative discomfort and bleeding. To overcome these limitations, this case report presents a novel non-invasive simple, surgical technique to augment keratinized tissue using partially excised pedicled gingivectomy tissue for augmentation of attached gingiva before prosthetic rehabilitation with implants.

A high-flexion design total knee prosthesis: a ten to twelve-year follow-up study

BackgroundThe purpose of this study was to investigate the clinical and radiographic outcomes and to determine the survivorship of a high-flexion design total knee arthroplasty (TKA) prosthesis, the LOSPA knee system, over a follow-up period of 10–12 years.MethodsThe study included 386 patients (503 TKAs) who were treated with TKA from 2011 to 2013 (follow-up period 10–12 years).The patients were assessed clinically using range of motion (ROM) of the knee, the Knee Society scoring system (KSS), and the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). For radiographic analysis, the positions of femoral and tibial implants as α, β, γ, and δ angles, hip knee ankle (HKA) angle, and radiolucent lines were used. Kaplan–Meier survival analysis was performed.ResultsMean ROM improved significantly from the preoperative baseline of 117.3° to 126.5° at the final follow-up (p < 0.001). The mean KSS and WOMAC scores also both showed significant improvement after surgery (all p < 0.001). A non-progressive radiolucent line less than 2 mm was observed in 23 cases (4.7%). Nine patients underwent revision surgery on the knee during the follow-up period. Revision surgery was performed on four patients due to aseptic loosening, three patients due to infection, one patient due to ankylosis, and one patient due to instability. When the endpoint of survival was the entire surgical cases, the survival rate was 96.2%. The survival rate, with revision for any reason as the endpoint, was 97.2%, and 97.8% for aseptic causes.ConclusionsThe LOSPA knee system, a high-flexion design total knee prosthesis, showed excellent long-term survivorship and improvements in clinical outcomes at 10- to 12-year follow-up.