Higher Perioperative Complication Research Articles

Retrospective Cohort Study of Perioperative Complications in Symptomatic and Asymptomatic Children Testing SARS-CoV-2-Positive Within 21 Days Before Surgery.

COVID-19 increases anesthetic risk in children, but understanding of complication differences by symptom presence and severity is limited. We hypothesized that symptomatic COVID-19+ children, especially with lower respiratory symptoms, would have higher perioperative complications than asymptomatic patients and that complications would be higher in all patients diagnosed < 6 days before anesthesia. This single-center, retrospective cohort study reviewed records of children < 18 years old undergoing surgery with general anesthesia from March 1, 2020, to March 1, 2022, who tested COVID-19+. A total of 225 patients who tested positive ≤ 10 days before anesthesia were analyzed for the primary outcome, and an additional 298 patients who tested positive ≤ 21 days before anesthesia were analyzed for secondary outcomes. Data on demographics, comorbidities, vaccination, preoperative and perioperative care, complications, and mortality were collected. Primary outcome analysis used univariate regression; secondary outcome analysis used analysis of variance. Primary Outcome: Symptomatic patients were more likely to experience postoperative respiratory complications (OR: 3.53, 1.18-10.6, p = 0.024), require postoperative medications (OR: 7.64, 2.29-25.51, p = 0.001), and require postoperative oxygen support (OR: 2.62, 1.19-5.79, p = 0.017) versus asymptomatic patients. Those with upper respiratory symptoms were less likely to require postoperative medications (OR: 0.1, 0.01-0.89, p = 0.039) and oxygen support (OR: 0.08, 0.01-0.45, p = 0.004) versus those with lower respiratory symptoms. Patients testing COVID-19+ < 6 days before anesthesia had longer PACU stays (p < 0.001) and more postoperative respiratory complications (p = 0.001), medication use (p = 0.038), and oxygen use (p = 0.002) versus other groups. Preoperative symptoms, especially of the lower respiratory tract, increased the risk for perioperative complications in children diagnosed with COVID-19 within 10 days of surgery. The presence of symptoms, particularly of the lower respiratory tract, should be strongly considered in the shared decision-making process between providers and families when discussing the potential delay of procedures in the setting of COVID-19.

Comparison of Percutaneous Techniques for Stabilization of Osteolytic Lesions of the Periacetabular Region Due to Metastatic Bone Disease.

Minimally invasive techniques for metastatic disease treatment in the periacetabular region of the pelvis have grown increasingly popular. Open surgical management of osteolytic lesions in the pelvis are associated with high perioperative complication rates that approach 30-36% and often require suspension of systemic treatment. Conservative measures, such as radiation treatment, can improve functional status in select patients while avoiding the morbidity of open surgical intervention; however, conservative measures do not address the problem of mechanical instability that can lead to pathologic fracture or loss of independence. Percutaneous techniques without fixation, including cementoplasty and ablation, can be performed by themselves or in combination with other modalities. When performed in combination, screw fixation and cement and/or ablation can provide an immediately stable, durable construct that can be used as a 'bridge' procedure to hip arthroplasty if desired. The newer technique of photodynamic balloon stabilization also offers immediate stability and allows for conversion to total hip arthroplasty, but lacks the long-term follow-up data of other modalities. Percutaneous techniques addressing periacetabular defects are less invasive and morbid than open treatment, have a variety of applications in select patients, and provide excellent functional results.

Establishment and validation of clinical prediction model and prognosis of perioperative pneumonia in elderly patients with hip fracture complicated with preoperative acute heart failure

BackgroundElderly hip fracture was a common orthopedic emergency with high perioperative complication risks. Combined with preoperative acute heart failure, the risk increases further, with pneumonia being a common complication. The aim of this study was to construct and evaluate risk factor prediction models for perioperative pneumonia in these patients and to explore prognostic factors.MethodsA retrospective study design was used to collect data on elderly patients with hip fracture combined with preoperative acute heart failure at the Third Hospital of Hebei Medical University from January 2020 to December 2022. The feature variables were screened by logistic regression and nomogram was constructed. The receiver operating characteristics curve (ROC), decision curve analysis (DCA), and calibration curve were employed to assess the predictive power of the model. Correlation heatmaps and shapley additive explanation (SHAP) were employed to assess key variables and their impact. Employing the Kaplan-Meier curve and Cox regression, the patients’ prognosis was ultimately evaluated.Results535 elderly patients with hip fracture combined with preoperative acute heart failure were included in this study. Logistic regression analysis was used to identify combined respiratory disease, hemoglobin, albumin, neutrophils, and blood glucose as independent danger factors for perioperative pneumonia (p < 0.05). The nomogram was designed to display the outcomes instinctively, with an AUC of 0.819. The model was internally validated by initiating self-sampling 1000 times. The calibration curve indicated that the model had excellent treaty. The DCA curve showed that the model had good validity and clinical practicability. Correlation heatmaps and SHAP were visualized and analyzed. The K-M curves indicated that the prognosis of the non-pneumonia group was better than that of the pneumonia group (p = 0.014). COX regression analysis found that the major risk factors for all-cause mortality in patients with acute heart failure(AHF) were age, brain natriuretic peptide, platelet count, and combined respiratory failure (p < 0.05).ConclusionThe prediction model, established in this study, was highly accurate and proved a potent instrument for clinical evaluation of the perioperative pneumonia risk of elderly hip fracture patients with preoperative acute heart failure. We hope that this study can reduce the occurrence of perioperative pneumonia in patients and improve the prognosis of patients.

Cerebral hemodynamic plasticity related to potential compensatory self-recirculation network in Moyamoya disease: an observational study

Moyamoya disease (MMD) suffers from impaired cerebrovascular hemodynamics and high perioperative complications occurrence. This study aims to propose and evaluate the relationship between intraoperative hemodynamics and perioperative complications, and propose a potential compensatory self-recirculation network in MMD. We prospectively enrolled 63 MMD patients undergone combined revascularization, and patients were divided into decreased and increased group according to decreased and increased microvascular transit time (MVTT), respectively. Mean age of all patients was 45.9 ± 9.4 years. The post-bypass hyperperfusion syndrome occurrence was significantly higher in the decreased MVTT group, and the cerebral infarction occurrence was significantly higher in the increased MVTT group. For the hemodynamics of the recipient artery around anastomosis, the parameters of distal site demonstrated a significant higher intensity and shorter time in the decreased MVTT group, while the parameters of the proximal site demonstrated a significant higher intensity and shorter time in the increased MVTT group. Pre-bypass and post-bypass collision of blood flow in artery and vein were firstly observed and illustrated. Intraoperative hemodynamics showed close relationship with perioperative complications. The blood flow of MMD seems to develop a unique compensatory self-recirculation system and contribute to the clinical complications, providing a new insight to the clinical management the pathology of the disease.

Postoperative complications in patients with Behçet’s disease

ObjectiveTo assess the proportion of postoperative complications of various surgeries in patients with Behçet’s disease (BD) and compare the risk of surgical complications between BD patients and controls.MethodsWe analyzed 389 BD patients who underwent surgeries at Seoul National University Hospital between January 2003 and December 2019. Controls were 1:1 matched with BD patients based on age at surgery, sex, and type of surgery. Generalized estimating equation analyses were performed to compare the postoperative complications between BD patients and controls.ResultsAmong 632 surgeries in BD patients, 36 (5.7%) surgical site complications, including wound dehiscence (38.9%), bleeding (13.9%), infections (8.3%), anastomotic dehiscence (22.2%), and stricture (5.6%), occurred after median 12 days (IQR 7.8–22.0). Surgical site complications developed frequently after cardiac (33.3%) and vascular (22.2%) surgeries and rarely occurred after ophthalmic (1.5%) surgeries. Seventeen (2.7%) cases required reoperation within median 15 days (IQR 7.0–43.0). Four patients died within median 21 days (IQR 8.3–41.3 days). After adjustment for confounders, BD patients exhibited a significantly higher risk of surgical site complications (OR 3.4, 95% CI 1.4–8.0) and reoperation (OR 5.2, 95% CI 1.2–22.8) after cardiovascular surgery than controls. However, the risks of surgical site complications and reoperation after other types of surgery were similar in both groups.ConclusionsThe risk of postoperative complications varies according to the type of surgeries among BD patients. While cardiovascular surgeries result in higher perioperative complications in BD patients, ophthalmic surgeries show a safety profile similar to those in non-BD patients.Key Points• Patients with Behçet’s disease exhibited an increased risk of surgical site complications and subsequent reoperations after cardiovascular surgery than controls.• The safety profile of ophthalmic surgery was comparable between patients with Behçet’s disease and controls.• In patients with Behçet’s disease, the risk of postoperative complications varies according to the type of surgery.

Safety and risk analysis of total resection surgery for thoracic and lumbar spinal tumors: a decadal analysis of 103 cases

Study designRetrospective cohort study.PurposeTo explore the complications and risk factors for total resection (TR) of primary thoracic and lumbar spinal tumors over the past decade at our institution.MethodsPatients meeting inclusion criteria (primary spinal tumors, thoracic or lumbar location, TR at our center) were included. Demographic characteristics, surgical data, perioperative complications and management results were reviewed. Patients were stratified by tumor site, the number of excised segments, and recurrence status to elucidate distinctive characteristics.ResultsThe cohort comprised 103 patients, with a mean age of 35.8 years. On average, 1.83 vertebral segments were resected per patient. Perioperative complications were substantial, totaling 166 events, with 71 classified as major and 95 as minor, yielding an average of 1.61 complications per patient. No perioperative deaths occurred, but 79 patients (76.7%) experienced at least one complication. Multiple vertebral sections correlated with a higher complication rate (P = 0.031), and lumbar surgeries exhibited elevated risks of large vascular injury (P = 0.001), neurological deterioration, and cerebrospinal fluid leakage compared to thoracic cases. Conversely, thoracic spinal procedures showed a higher rate of pleural effusion (P = 0.004). Binary logistics stepwise regression identified multi-segmental resection as the independent risk factor for major perioperative complications.ConclusionsTR of primary spinal tumors is associated with a high perioperative complication rate, although most events have a favorable prognosis. Complication characteristics vary based on the surgical site, number of excised segments, and surgical history. A nuanced preoperative evaluating approach considering patient age, surgical segments, and extent of resection is crucial.

Outcomes of Surgical Revascularization for Acute Upper Limb Ischemia— A Single-Center Retrospective Analysis

ObjectivesAcute upper limb ischaemia (AULI) is a medical emergency with high perioperative complication rates however these are poorly reported. The aim of this study is to report the complication rates following surgical revascularisation in AULI. MethodsRetrospective analysis of all patients undergoing brachial embolectomy for AULI from January 2010 to October 2021 were included. Data for baseline demographic characteristics, site of arterial occlusion, cancer status, and the potential underlying aetiology were included. Outcomes included technical success, early re-intervention, local and systemic complications, functional limb outcome at follow-up, and amputation. Results96 patients were identified. CT angiography was the first line diagnostic imaging modality, with the brachial bifurcation as the most common location for obstruction. The initial technical success rate was 76.4% (n=73). Major adverse events occurred in 11.5% patients (n=11); 8.3% had perioperative stroke and 7.3% resulted in in-hospital death (4.2% had both). Local complications occurred in 24%; 7.3% had site haematoma, 11.5% early thrombosis and 4.2% 30 day thrombosis. 2.1% resulted in amputation. No variables were identified as having significant association with local surgical complications. ConclusionAULI is often associated with underlying systemic and cardiac disorders. An evidence based approach to guide the non-operative management of AULI is lacking. In appropriately selected patients, Fogarty thrombectomy has a reasonable technical success rate, however the associated perioperative complication rate is high, both locally and systemically. Further studies of larger sample size are needed to identify negative predictors and reduce perioperative complications in this challenging cohort.

Total en bloc spondylectomy for primary tumors of the thoracic and lumbar spine: A review article

Primary spine tumors present significant clinical challenges due to their potential for local invasiveness and metastasis. Total en bloc spondylectomy (TES) has emerged as a feasible surgical technique for the complete resection of thoracic and lumbar spinal tumors, providing superior local control and long-term survival benefits. This review synthesized the current evidence and clinical experiences and demonstrated that TES achieved lower recurrence rates and higher disease-free survival than those of piecemeal resection. Despite the high perioperative complication rates, TES is essential for treating primary spine tumors. The importance of skilled surgical teams to optimize patient outcomes has been emphasized.

Head and neck free flap reconstruction under the COVID-19 pandemic.

High perioperative mortality and complication rates during the coronavirus disease 2019 (COVID-19) pandemic have been reported. In head and neck reconstruction, not only is patient safety important, but the prevention of infection introduced by the surgical team is also important because the procedure is performed in close proximity to the upper respiratory tract. In addition, recent studies have reported an increased risk for thrombus formation after infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) or COVID-19 vaccination, which is problematic for microsurgical reconstruction procedures. At the authors' institution, patients undergoing head and neck reconstruction are requested to stay home for 2 weeks and undergo screening tests for COVID-19 before admission. Surgeons use standard personal protective equipment during surgery. There was no significant difference in the rate of total flap necrosis between the COVID-19 and non-pandemic periods or large difference of perioperative complication rates between vaccinated and non-vaccinated patients. No surgery-related infections among the surgical staff were also found.

“Pediatric Spontaneous Intracranial Dissecting Aneurysms: Impact of Ischemic and Hemorrhagic Manifestations on Endovascular Treatment Strategies - Insights from a Developing World Setting”

Pediatric spontaneous intracranial dissecting aneurysms (IDA) are rare, but systematic studies comparing hemorrhagic and ischemic presentations are lacking. This study addresses gaps in understanding their epidemiology, clinical presentation, management, and outcome. A retrospective analysis of 23 pediatric patients with nontraumatic IDA treated between July 2018 and December 2023 was conducted. Patients were divided into two groups based on presentation: hemorrhagic (n=16) and ischemic (n=7). Clinical data were analyzed, including demographics, radiological findings, treatment modalities, and outcomes. Clinical presentations varied, with limb weakness being more prevalent in hemorrhagic cases (p=0.014), while headache and seizures were more common in ischemic cases. Angiographic analysis revealed distinct patterns, with hemorrhagic cases showing more distal involvement on vessel segments with stenosis and dilatation (pearl string sign). At the same time, the ischemic group exhibited the double-lumen sign. Various treatments, including microsurgery and endovascular techniques, were utilized, with perioperative complications observed, including one mortality in a hemorrhagic case. Multiple regression analysis identified significant risk factors for perioperative complications, namely, the configuration of the dissecting aneurysm (p=0.016) and the type of presentation (p=0.0006). Long-term Glasgow Outcome Scores were comparable, but patients with hemorrhagic manifestations experienced prolonged hospital and ICU stays (p=0.001). Pediatric intracranial dissecting aneurysms, particularly hemorrhagic cases, are associated with severe neurological deficits and higher perioperative complications. Despite similar long-term outcomes, hemorrhagic cases require prolonged hospitalization, increasing treatment costs. Optimizing management strategies for pediatric ICDAs, especially those with hemorrhagic features, is essential to improve outcomes and reduce healthcare expenditures.

Clinical features and prediction of long-term survival after surgery for perihilar cholangiocarcinoma.

The treatment of perihilar Cholangiocarcinoma (pCCA) poses specific challenges not only due to its high perioperative complication rates but also due its dismal long-term prognosis with only a few long-term survivors (LTS) among the patients. Therefore, in this analysis characteristics and predictors of LTS in pCCA patients are investigated. In this single center analysis, patients undergoing curative-intent liver resection for pCCA between 2010 and 2022 were categorized into long-term and short-term survivors (STS) excluding perioperative mortality. Binary logistic regression was used to determine key differences between the groups and to develop a prognostic composite variable. This composite variable was subsequently tested in the whole cohort of surgically treated pCCA patients using Cox Regression analysis for cancer-specific survival (CSS). Within a cohort of 209 individuals, 27 patients were identified as LTS (median CSS = 125 months) and 55 patients as STS (median CSS = 16 months). Multivariable analysis identified preoperative portal vein infiltration (OR = 5.85, p = 0.018) and intraoperative packed red blood cell (PRBC) transfusions (OR = 10.29, p = 0.002) as key differences between the groups. A prognostic composite variable based on these two features was created and transferred into a Cox regression model of the whole cohort. Here, the composite variable (HR = 0.35, p<0.001), lymph node metastases (HR = 2.15, p = 0.001) and postoperative complications (HR = 3.06, p<0.001) were identified as independent predictors of CSS. Long-term survival after surgery for pCCA is possible and is strongly negatively associated with preoperative portal vein infiltration and intraoperative PRBC transfusion. As these variables are part of preoperative staging or can be modulated by intraoperative technique, the proposed prognostic composite variable can easily be transferred into clinical management to predict the oncological outcome of patients undergoing surgery for pCCA.

From Bands to Bypasses: Navigating Safety of Band Conversions to Roux-en-Y Gastric Bypass and Single Anastomosis Duodenoileostomy Versus Sleeve Gastrectomy.

Revisional bariatric surgery is associated with higher perioperative complications over primary procedures. Adjustable gastric bands (AGB) continue to be the most frequently converted bariatric configuration. This study examines trends in current clinical indication and safety profile of the most frequently pursued AGB conversions. MBSAQIP data from 2020 to 2022 was retrospectively analyzed in a cohort study examining 30-day postoperative outcomes after AGB conversion to sleeve gastrectomy (SG), Roux-en-Y gastric bypass (RYGB), or single anastomosis duodenoileostomy (SADI). Descriptive statistics were used, including multivariable and 2:1 nearest neighbor matching analysis. This study included 19,335 AGB conversions, of which most were to SG (n = 11,736) followed by RYGB (n = 7442) and SADI (n = 157). While a majority were completed for weight loss, there were differences in distribution of primary indication for each conversion cohort, such as higher proportion of RYGB conversion for gastroesophageal reflux disease (18.7%) compared to SG (7.92%) and SADI (5.10%). Multivariable analysis demonstrates conversion to RYGB has significantly higher odds of 30-day major complications (OR 1.75, p < 0.001), reoperation (OR 2.08; p = 0.001), readmission (OR 1.69; p = 0.001), and emergency department visits (OR 1.50; p = 0.001) over SG. These risks and odds of reintervention (OR 1.75; p < 0.001) remained significantly higher after conversion to RYGB versus SG on matched analysis. None of these risks is significantly different between conversions to SADI versus SG in either multivariable or matched analysis. Compared to AGB conversion to SG, single-stage conversion to RYGB had increased odds of perioperative complications while risks of conversion to SADI were not significantly different.

Endovascular treatment for Stanford type B aortic dissection in Marfan syndrome patients: a series of 23 cases

Objective: To evaluate the clinical outcomes of thoracic endovascular aortic repair (TEVAR) in the treatment of Stanford type B aortic dissection (TBAD) in Marfan syndrome patients who had no history of aortic arch replacement. Methods: This is a retrospective case-series study. From January 2009 to December 2019,the clinical data of Marfan syndrome patients who underwent TEVAR for TBAD at the Department of Vascular Surgery were collected. A total of 23 patients were enrolled,including 15 males and 8 females. The age was (38.0±11.0) years (range:24 to 56 years). Among them,12 patients had history of ascending aortic surgery. Details of TEVAR,perioperative complications and reintervention were recorded and survival rate was analyzed by Kaplan-Meier curve. Results: Technical success was 91.3% (21/23). Two patients with technical failure were as follows:one patient had type Ⅰa endoleak at the completion angiography,which healed spontaneously during the follow-up,and the other patient suffered aortic intimal intussusception after the deployment of the first stent-graft, and the second stent-graft was deployed. However, type Ⅲ endoleak was detected,which disappeared during the follow-up. One patient died during hospitalization. The median follow-up time (M(IQR)) was 60 (48) months (range:12 to 132 months). Reintervention was performed on 7 patients,including 3 distal stent-graft-induced new entry,2 distal aortic dilation,1 Ⅰa endoleak and 1 retrograde type A aortic dissection,respectively. Five-year cumulative survival rate was 86.7% (95%CI:86.6% to 86.8%) and the 5-year freedom from reintervention rate was 81.8% (95%CI:61.8% to 92.8%). Conclusions: TEVAR is feasible in the treatment of TBAD in Marfan syndrome patients who has no history of aortic arch replacement. It has high technical success rate and low perioperative complication.

Postoperative outcomes of acute-on-chronic liver failure in infants and children with biliary atresia.

Acute-on-chronic liver failure (ACLF) is associated with increased mortality and morbidity in patients with biliary atresia (BA). Data on impact of ACLF on postoperative outcomes, however, are sparse. We performed a retrospective analysis of patients with BA aged <18 years who underwent LT between 2011 and 2021 at our institution. ACLF was defined using the pediatric ACLF criteria: ≥1 extra-hepatic organ failure in children with decompensated cirrhosis. Of 107 patients (65% female; median age 14 [9-31] months) who received a LT, 13 (12%) had ACLF during the index admission prior to LT. Two (15%) had Grade 1; 4 (30%) had Grade 2; and 7 (55%) had Grade ≥3 ACLF. ACLF cohort was younger at time of listing (5 [4-8] vs. 9 [6-24] months; p < .001) and at LT (8 [8-11] vs. 16 [10-40] months, p < .001) compared to no-ACLF group. Intraoperatively, ACLF patients had higher blood loss (40 [20-53] vs. 10 [6-19] mL/kg; p < .001) and blood transfusion requirements (33 [21-69] vs. 18 [7-25] mL/kg; p = .004). Postoperatively, they needed higher vasopressor support (31% vs. 10.6%; p = .04) and had higher total hospital length of stay (106 [45-151] vs. 13 [7-30] days; p = .023). Rate of return to the operating room, hospital readmission rates, and 1-year post-LT survival rates were comparable between the groups. Despite higher perioperative complications, survival outcomes for ACLF in BA after LT are favorable and comparable to those without ACLF. These encouraging data reiterate prioritization during organ allocation of these critically ill children for LT.

Three-dimensional computed tomography-based resection process map for robot-assisted partial nephrectomy: propensity score matching of a single-center retrospective study.

We aimed to examine the effect of preoperative three-dimensional (3D) computed tomography (CT)-based resection process map (RPM) imaging on the outcomes of robot-assisted partial nephrectomy (RAPN). We retrospectively analyzed 177 patients (RPM group, n = 92; non-RPM group, n = 85) who underwent this surgery between November 2012 and April 2022. Patient-specific contrast-enhanced CT images were used to construct an RPM, a 3D representation of the kidney showing the planned tumor resection and a 5 mm safety margin. Outcome analyses were performed using propensity score matching. The primary endpoint was the trifecta achievement rate. We extracted 90 cases. The trifecta achievement rate showed no significant differences between the RPM (73.3%) and non-RPM groups (73.3%). However, the RPM group had fewer Grade 3 and higher complications (0.0% vs. 13.3%, p = 0.026). The da Vinci Xi (OR 3.38, p = 0.016) and tumor diameter (OR 0.95, p = 0.013) were independent factors affecting trifecta achievement in multivariate analysis. Using RPM imaging was associated with the absence of Grade 3 and higher perioperative complications (OR 5.33, p = 0.036) in univariate analysis. Using preoperative 3D CT-based RPM images before RAPN may not affect trifecta achievement, but may reduce serious complication occurrence by providing detailed information on tumor resection.

(114) A Comparative Meta-Analysis of Revision Strategies for Malfunctioning Inflatable Penile Prosthesis: Partial vs Complete Component Replacement With or Without Retained Reservoir

Abstract Introduction In cases of non-infected malfunctioning Inflatable penile prosthesis (IPP) device, surgeon often opt to exchange all the device rather than the defective component for fear of increased infection rate and future mechanical dysfunction. Objective To assess whether partial component exchange of IPP device has comparable outcomes to complete explant and replacement of IPP device with or without retained reservoir. Methods A meta-analysis was completed in line with PRISMA 2020 and AMSTAR guidelines. A comprehensive search was done on MEDLINE (OVID), PubMed, and Cochrane Library electronic databases from their inceptions until May 2023, identifying studies that reported on outcomes and complications of revision surgery for non-infected malfunctioning IPP device. Three groups were compared: the first group underwent a single or two-component exchange, the second group had a complete explant replacement of the entire device, and the third group had replacement of all components with a drained and retained primary reservoir. Results A total of 9 articles were included in the analysis. 12,152 patients had complete replacement of their device, 128 had partial exchange of their device and 151 patients had “drained and retained” reservoir following revision. The mean age was similar among the 3 groups between 62–68 years. The median follows up time ranged between 12 and 79 months. Partial component ex change had a higher rate of mechanical failure 10.3% versus 1.3% and 2.3 % (p=0.03) for complete and “drain and retain” groups respectively. (Figure 1) Similarly, partial component exchange had higher peri-operative complications at 21.2% compared to complete replacement group 9.5% and “drain and retain” group 14.5% (p=0.022). However, the infection rate was similar among the three groups, 7.7%, 2.7% and 3.3% respectively (p= 0.301). (Figure 2) Conclusions Partial component exchange during IPP revision has higher rates of perioperative complication and future mechanical failure but has similar rate of infection compared to complete component replacement with or without “drain and retain” of original reservoir. Disclosure No.

(391) A Comparative Meta-analysis of Revision Strategies for Malfunctioning Inflatable Penile Prosthesis: Partial Vs Complete Component Replacement With or Without Retained Reservoir

Abstract Introduction In cases of non-infected malfunctioning Inflatable penile prosthesis (IPP) device, surgeon often opt to exchange all the device rather than the defective component for fear of increased infection rate and future mechanical dysfunction. Objective To assess whether partial component exchange of IPP device has comparable outcomes to complete explant and replacement of IPP device with or without retained reservoir. Methods A meta-analysis was completed in line with PRISMA 2020 and AMSTAR guidelines. A comprehensive search was done on MEDLINE (OVID), PubMed, and Cochrane Library electronic databases from their inceptions until May 2023, identifying studies that reported on outcomes and complications of revision surgery for non-infected malfunctioning IPP device. Three groups were compared: the first group underwent a single or two-component exchange, the second group had a complete explant replacement of the entire device, and the third group had replacement of all components with a 'drained and retained' primary reservoir. Results A total of 9 articles were included in the analysis. 12,152 patients had complete replacement of their device, 128 had partial exchange of their device and 151 patients had “drained and retained” reservoir following revision. The mean age was similar among the 3 groups between 62-68 years. The median follow up time ranged between 12 and 79 months. Partial component exchange had a higher rates of mechanical failure 10.3% versus 1.3% and 2.3 % (p=0.03) for complete and “drain and retain” groups respectively. (Figure 1) Similarly, partial component exchange had higher perioperative complications at 21.2% compared to complete replacement group 9.5% and “drain and retain” group 14.5% (p=0.022). However, the infection rate was similar among the three groups, 7.7%, 2.7% and 3.3% respectively (p= 0.301). (Figure 2) Conclusions Partial component exchange during IPP revision has higher rates of perioperative complication and future mechanical failure but has similar rate of infection compared to complete component replacement with or without “drain and retain” of original reservoir. Disclosure No.

Clinical relevance of sentinel lymph node biopsy in early ovarian cancer.

The first-line treatment for early ovarian cancer typically involves primary debulking surgery aimed at maximal cytoreduction, alongside adjuvant chemotherapy if clinically indicated. Nodal assessment involving pelvic and para-aortic lymph node dissection is typically performed during the primary debulking surgery. However, the survival benefit of lymphadenectomy in patients with early ovarian cancer has not been well established, and the procedure is associated with longer operation time and higher perioperative complications. With the emergence of minimally invasive surgery as a potential alternative to laparotomy for early ovarian cancer, sentinel lymph node biopsy has been evaluated in this setting. In this review, we summarized the current literature regarding sentinel lymph node biopsy in patients with early ovarian cancer, focusing on the clinical relevance of this method, including its detection rate and diagnostic accuracy. Additionally, we discuss the current status of clinical trials investigating sentinel lymph node biopsy in early ovarian cancer cases.

Perioperative complications among head and neck surgery patients with COVID-19.

Patients undergoing surgery for head and neck cancer (HNC) have potentially high perioperative complication rates. Recent studies indicate that preoperative COVID-19 infection poses increased risk for postoperative complications in other fields. However, to date, there has not been data showing the effect of COVID-19 on complication rates for HNC. Here, a large database was employed to assess if perioperative COVID-19 increased the risk of perioperative complications among those undergoing HNC surgery. A retrospective investigation was conducted using a multi-institutional research database. Subjects who underwent HNC surgery from January 2020 to September 2022 were identified using the International Classification of Diseases and Current Procedure Terminology codes. Thirty-day surgical and medical complications were assessed for those diagnosed with COVID-19 infection from 7 days before or after surgery compared to those who were COVID-19 negative. Cohorts were propensity scores matched by age, sex, and race. Perioperative COVID-19 was present in n = 208 and absent in n = 15 158 subjects that underwent HNC surgery. For unmatched analyses, there was a statistically significant increased risk in the 30-day postoperative period in COVID-19-positive patients for the following surgical complications: surgical site fistula, free tissue transfer (FTT) complication, FTT failure, and death. Additionally, there was a statistically significant increased risk in the 30-day postoperative period in COVID-19-positive patients for the following medical complications: ventilator support, pneumonia, vasopressor, acute renal failure, and myocardial infarction. This large, retrospective populational study suggests HNC patients are at increased risk for death and several perioperative complications. This investigation is the first to address this clinical question.

Outcomes of coronary artery bypass grafting and percutaneous coronary intervention in high-risk non-ST-segment elevation acute coronary syndromes

Highlights. Despite high hospital mortality after coronary bypass grafting in patients with high-risk non–STsegment elevation acute coronary syndrome, surgical myocardial revascularization remains a preferable treatment modality since percutaneous coronary intervention in these patients is associated with high perioperative complications due to severely calcified coronary lesions.Background. The optimal revascularization strategy in patients with non-ST-segment elevation acute coronary syndrome (NSTE-ACS) remains the subject of many years of controversy. Coronary artery bypass grafting (CABG) improves the long-term prognosis through complete revascularization, however, percutaneous coronary intervention (PCI), due to its availability and low invasiveness, suggests an improvement in hospital outcomes.Aim. To compare hospital outcomes of CABG and PCI performed within 24 hours in high-risk NSTE-ACS patients.Methods. In the present study, the first group included 30 NSTE-ACS patients who underwent CABG in the first 24 hours (the CABG group), whereas 30 NSTE-ACS patients who underwent PCI were included in the second group (the PCI group).Results. The mean age was 64,4±7,3 years, it was comparable in both groups. The main clinical and anamnestic characteristics of patient in both groups were comparable as well. The severity of coronary atherosclerosis according to the Syntax score was 25,6±9,2 in the CABG group, and 21,7±5,7 in the PCI group (p = 0,054). After revascularization, the residual Syntax score did not differ between the groups (p = 0,42), indicating complete revascularization. Hospital mortality was relatively high in the CABG group (13,3%), while no such cases were noted in the PCI group. Most of the patients with adverse outcomes had a critical lesion of the left main coronary artery and a complicated postoperative course.Conclusion. The results of this study demonstrate promising outcome of CABG in patients with severe multivessel coronary disease at high risk of adverse events.