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Treatment options for many cancers include immune checkpoint inhibitor (ICI) monotherapy and combination therapy with impressive clinical benefit across cancers. We sought to define the comparative cardiac risks of ICI combination and monotherapy. We used VigiBase, the World Health Organization pharmacovigilance database, to identify cardiac ADRs (cADRs), such as carditis, heart failure, arrhythmia, myocardial infarction, and valvular dysfunction, related to ICI therapy. To explore possible relationships, we used the reporting odds ratio (ROR) as a proxy of relative risk. A lower bound of a 95% confidence interval of ROR > 1 reflects a disproportionality signal that more ADRs are observed than expected due to chance. We found 2278 cADR for ICI monotherapy and 353 for ICI combination therapy. Combination therapy was associated with significantly higher odds of carditis (ROR 6.9, 95% CI: 5.6-8.3) versus ICI monotherapy (ROR 5.0, 95% CI: 4.6-5.4). Carditis in ICI combination therapy was fatal in 23.4% of reported ADRs, compared to 15.8% for ICI monotherapy (P = 0.058). Using validated pharmacovigilance methodology, we found increased odds of carditis for all ICI therapies, with the highest odds for combination therapy. Given the substantial risk of severe ADR and death, clinicians should consider these findings when prescribing checkpoint inhibitors.

Objectives The objective of this study is to assess frequency and risk factors for intraoperative hypoxemia of the lower limbs during robot‐assisted radical prostatectomy (RARP). Trendelenburg position during RARP may contribute to hypoxemia and compartment syndrome (CS) of the lower limbs as a major but rare complication. Patients and methods This prospective study included patients undergoing RARP for prostate cancer. Preoperative calculation of the ankle‐brachial‐index (ABI) was performed. Peripheral oxygen saturation (SpO2) at the toes was routinely measured. Occurrence of SpO2 levels of <90% was defined as hypoxemic events and treated immediately. Blood pressure, intraabdominal pressure, SpO2 of the upper limb and surgery time were monitored in case of hypoxemia. A multivariable logistic regression model was performed with age, BMI, nicotine abuse, MAP, comorbidities as covariates and hypoxemia of the lower limbs as the outcome. Results A total of 207 patients were included. Among these, 126 patients had ABI measurements with 10.6% having an abnormal ABI value. One, two or at least three events of lower limb hypoxemia occurred intraoperatively in 19.7%, 14.8% and 16.9%, respectively. In 20 events, surgical instruments were affecting vascular perfusion by compression. None of the covariates were statistically significant associated with lower limb hypoxemia. No patient developed a compartment syndrome. Conclusion Decrease in oxygen saturation of the lower extremities was observed frequently during RARP, without revealing any risk factors for its occurrence. Routine oximetry leads to an early detection of hypoxemia of the lower extremities, giving the anaesthesiologist and surgeon the opportunity to make adequate adjustments (increasing blood pressure and ending iliac vessel compression).

Assessing perioperative risk is essential for surgical decision-making. Our study compares the accuracy of comorbidity indices to predict morbidity and mortality. Analyzing the National Surgical Quality Improvement Program, 16 major procedures were identified and American Society of Anesthesiologists (ASA), Charlson Comorbidity Index and modified Frailty Index were calculated. We fit models with each comorbidity index for prediction of morbidity, mortality, and prolonged length of stay (pLOS). Decision Curve Analysis determined the effectiveness of each model. Of 650,437 patients, 11.7%, 6.0%, 17.0% and 0.75% experienced any, major complication, pLOS, and mortality, respectively. Each index was an independent predictor of morbidity, mortality, and pLOS (p < 0.05). While the indices performed similarly for morbidity and pLOS, ASA demonstrated greater net benefit for threshold probabilities of 1–5% for mortality. Models including readily available factors (age, sex) already provide a robust estimation of perioperative morbidity and mortality, even without considering comorbidity indices. All comorbidity indices show similar accuracy for prediction of morbidity and pLOS, while ASA, the score easiest to calculate, performs best in prediction of mortality. •Using comorbidity indices for prediction of perioperative morbidity and mortality.•ASA score, frailty index and CCI perform similarly for prediction of morbidity.•ASA score, the easiest to calculate, performs better for prediction of mortality.•Decision curve analysis determines the effectiveness of prediction models.

Work relative value units (wRVUs) quantify physician workload. In theory, higher wRVU assignments for procedures recognize an increase in complexity and time required to complete the procedure. The fairness of wRVU assignment is debated across specialties, with some surgeons arguing that reimbursement may be unfairly low for longer, more complex cases. For this reason, we sought to assess the correlation of wRVUs with operative time in commonly performed surgeries. We analyzed the National Surgical Quality Improvement Program database, selecting the 15 most performed surgical procedures across specialties in a 90-day global period, using Current Procedural Terminology codes. Calculation and comparison of mean operative time and mean wRVUs were performed for each of the 15 procedures. Cases with missing values for wRVUs or operative time and cases with an operative time of less than 15 minutes were excluded. The Spearman correlation coefficient was calculated to evaluate the strength of correlation between operative duration and wRVUs. A total of 1,994,394 patients met criteria for analysis. The lowest mean wRVU was 7.78 (95% CI, 7.77-7.78) for inguinal hernia repair; the highest was 43.50 (95% CI, 43.37-43.60) for pancreatectomy. The shortest mean operative time was 51.0 (95% CI, 50.8-51.1) minutes for appendectomy; the longest was for pancreatectomy at 324.6 (95% CI, 323.2-326.0) minutes. The Spearman correlation coefficient was 0.81. In our analysis, we found a strong correlation between operative duration and wRVU assignment. Thus, the reimbursement of physicians depending on wRVUs is fair for the most commonly performed surgical procedures across specialties.

Introduction: Combinations of immune-checkpoint inhibitors (ICIs) are the standard of care (SOC) for treatment-naive metastatic renal cell carcinoma (mRCC) patients. In this multicenter study, we evaluated the RW safety and efficacy of cabozantinib plus nivolumab in mRCC patients. Methods: Data were retrospectively collected from twelve cancer centers in Germany, Switzerland, and Austria. Patients with advanced or mRCC were eligible. The investigator-based objective response rate (ORR) and progression free survival (PFS) were calculated from the start of the treatment to progression or death. Descriptive statistics and Kaplan–Meier (KM) plots were utilized where appropriate. Results: In total, 96 eligible patients (66.6% male) with a median age of 66.0 years were included. The most common histology was clear-cell RCC (ccRCC) in 63.4% (n = 61). A prior nephrectomy was performed in 60.4% (n = 58). ECOG 0-1 was 68.8% (n = 66). A partial response was documented in 43.8% of patients (n = 42), a stable disease in 32.3% (n = 31), and a progressive disease in 8.3% (n = 8) as the best overall response. Response data were not evaluable in 13.5% (n = 13). The median follow-up time was 12.7 months (95% CI, 10.0–15.3). The PFS rate at 6 months was 89.8% in the overall population (86.8% for ccRCC; 90.0% for non-ccRCC). Adverse events (AEs) were reported in 82.3% (n = 79) for all grades and 41.7% (n = 40) for grades 3–5. Elevated liver enzymes (34.4%), diarrhea (31.3%), and hand–foot syndrome (29.2%) were the three most frequent AEs of any grade and causality. Discussion/Conclusions: In this real-world cohort of mRCC patients, the application of cabozantinib plus nivolumab was shown to be safe and feasible. Our data support the use of cabozantinib plus nivolumab as a first-line standard therapy in mRCC patients. Major limitations were the retrospective data capture and short follow-up time of our study.

BackgroundTreatment options for many cancers include immune checkpoint inhibitor (ICI) monotherapy and combination therapy with impressive clinical benefit across cancers. We sought to define the comparative cardiac risks of ICI combination and monotherapy.MethodsWe used VigiBase, the World Health Organization pharmacovigilance database, to identify cardiac ADRs (cADRs), such as carditis, heart failure, arrhythmia, myocardial infarction, and valvular dysfunction, related to ICI therapy. To explore possible relationships, we used the reporting odds ratio (ROR) as a proxy of relative risk. A lower bound of a 95% confidence interval of ROR > 1 reflects a disproportionality signal that more ADRs are observed than expected due to chance.ResultsWe found 2278 cADR for ICI monotherapy and 353 for ICI combination therapy. Combination therapy was associated with significantly higher odds of carditis (ROR 6.9, 95% CI: 5.6-8.3) versus ICI monotherapy (ROR 5.0, 95% CI: 4.6-5.4). Carditis in ICI combination therapy was fatal in 23.4% of reported ADRs, compared to 15.8% for ICI monotherapy (P = 0.058).ConclusionsUsing validated pharmacovigilance methodology, we found increased odds of carditis for all ICI therapies, with the highest odds for combination therapy. Given the substantial risk of severe ADR and death, clinicians should consider these findings when prescribing checkpoint inhibitors.