Risk factors of postoperative complications after radical cystectomy with continent or conduit urinary diversion in Armenia

Age and risk of major complications in patients undergoing radical cystectomy for muscle invasive bladder cancer

Introduction

Radical cystectomy is the treatment of choice for patients with muscle invasive bladder cancer (MIBC), but it may be unsafe in older patients.

Aim

In this study, we investigated whether age and selected clinical characteristics were associated with outcomes of radical cystectomy.

Material and methods

We enrolled 434 patients with MIBC who underwent radical cystectomy between 2012 and 2016, and we classified them into three age groups: < 65, 66–74, and ≥ 75 years. Postoperative complications were classified on the Clavien-Dindo scale. Regression models were used to find predictors of major postoperative complications (Clavien-Dindo score of 3 or more), long hospital stay (> 7 days), blood loss, and operating time. The models included American Society of Anesthesiologists scores, age group, sex, body mass index, Tumor Nodes Metastasis scores, type of urine derivation (ileal conduit or orthotopic bladder vs. ureterocutaneostomy), and operation type (open vs. laparoscopic).

Results

In the regression models, age was not a significant predictor of major complications, long hospital stay, or blood loss (p ≥ 0.206). Older age was associated with shorter surgery times (p = 0.002). Higher preoperative American Society of Anesthesiologists scores tended to be associated with a greater risk of major complications (odds ratio, 1.47; p = 0.092).

Conclusions

Older age was not associated with an increased risk of major complications in patients who undergo radical cystectomy because of MIBC. Therefore, older age alone should not be a contraindication to this operation.

Early postoperative complications and 90-day mortality in patients undergoing radical cystectomy

Introduction: The standard treatment method of muscle-invasive bladder cancer is radical cystectomy. This complex procedure consists of removing the urinary bladder with distal ureters and regional lymph nodes. Additionally, the prostate with seminal vesicles in men and uterus with ovaries in women should be excised. Therefore, this demanding oncological surgery is associated with a high occurrence of complications. The aim of this study was to assess the complications after radical cystectomy and identify the factors associated with severe complications and high mortality rate. Materials/Methods: We retrospectively analyzed medical data of 213 patients who underwent a radical cystectomy. Preoperative risk factors were assessed based on American Society of Anesthesiologists classification (ASA) and the Charlson Comorbidity Index (CCI). Clavien-Dindo classification was also included in our analysis. We investigated various factors associated with 30-day and 90-day mortality. Results: Complications after surgery were reported in 38% (n = 81) of patients in the studied group. Excluding perioperative high fever, the complication rate was 18%. The following complications were observed in 30-day postoperative period: wound infection (n = 6), wound dehiscence (n = 4), mechanical bowel obstruction (n = 3), hemorrhage (n = 2), cardiological (n = 8), stroke (n = 3). Observed 30-day mortality was 2.3% (n = 5), while 90-day mortality was 8.9% (n = 19). The mortality rate was associated with the stage of cancer and the type of urinary diversion. Conclusions: Radical cystectomy is a complex and traumatic urological surgery. It is associated with a significant complication rate and mortality, and it negatively affects quality of life. Therefore, all known risk factors should be thoroughly assessed preoperatively to select optimal treatment. Furthermore, the patient should be carefully informed about the risks associated with the surgery.

Effects of intraoperative positive end-expiratory pressure optimization on respiratory mechanics and the inflammatory response: a randomized controlled trial

Applying lung protective mechanical ventilation (LPV) during general anaesthesia even in patients with non-injured lungs is recommended. However, the effects of an individual PEEP-optimisation on respiratory mechanics, oxygenation and their potential correlation with the inflammatory response and postoperative complications have not been evaluated have not been compared to standard LPV in patients undergoing major abdominal surgery. Thirty-nine patients undergoing open radical cystectomy were enrolled in this study. In the study group (SG) optimal PEEP was determined by a decremental titration procedure and defined as the PEEP value resulting the highest static pulmonary compliance. In the control group (CG) PEEP was set to 6 cmH2O. Primary endpoints were intraoperative respiratory mechanics and gas exchange parameters. Secondary outcomes were perioperative procalcitonin kinetics and postoperative pulmonary complications. Optimal PEEP levels (median = 10, range: 8–14 cmH2O), PaO2/FiO2 (451.24 ± 121.78 mmHg vs. 404.15 ± 115.87 mmHg, P = 0.005) and static pulmonary compliance (52.54 ± 13.59 ml cmH2O-1 vs. 45.22 ± 9.13 ml cmH2O-1, P < 0.0001) were significantly higher, while driving pressure (8.26 ± 1.74 cmH2O vs. 9.73 ± 4.02 cmH2O, P < 0.0001) was significantly lower in the SG as compared to the CG. No significant intergroup differences were found in procalcitonin kinetics (P = 0.076). Composite outcome results indicated a non-significant reduction of postoperative complications in the SG. Intraoperative PEEP-optimization resulted in significant improvement in gas exchange and pulmonary mechanics as compared to standard LPV. Whether these have any effect on short and long term outcomes require further investigations. Trial registration: Clinicaltrials.gov, identifier: NCT02931409.

Ileus and small bowel obstruction after radical cystectomy for bladder cancer: Analysis from the Nationwide Inpatient Sample

PURPOSE

To investigate prevalence and predictors of postoperative small bowel obstruction (SBO) and ileus in a large cohort of bladder cancer (BCa) patients treated with radical cystectomy (RC).

METHODS

All patients within the Nationwide Inpatient Sample who underwent RC for BCa between 2006 and 2012 were identified. First, prevalence of SBO and ileus was analyzed. Second, predictors of these bowel-related complications were identified using multivariable regression analyses. Third, the association between SBO, ileus, and length of stay was evaluated using logistic regression models adjusted for clustering. Prolonged length of stay was defined as hospital stay above mean stay of the population (>10 days). Fourth, the effect of SBO and ileus on mean inpatient cost of healthcare was examined.

RESULTS

Of overall 41,498 patients, 1071 (2.6%) experienced SBO, and 11,155 (26.9%) experienced ileus. Predictors of ileus included age, male gender, black race, hospital characteristics, anemia, chronic pulmonary disease, drug abuse, hypothyroidism, fluid and electrolyte disorders, and neurological disorders (all p < 0.05) Predictors of SBO included male gender, Asian/Pacific islander race, hospital characteristics, congestive heart failure, fluid and electrolyte disorders, and psychosis (all p < 0.05). . Postoperative SBO (odds ratio (OR) 19.587; 95% confidence interval (CI):15.869-24.167) and ileus (OR 5.646; 95% CI:5.336-5.974) were associated with prolonged length of stay (all p < 0.001).Median cost of hospital stay was $56.315 for patients who developed SBO, $32,472 for patients who developed ileus, and $24,600 for patients after cystectomy without ileus or SBO.

CONCLUSIONS

Significant prevalence of bowel-related complications in patients after RC was observed. These complications are strongly associated with prolonged length of stay and higher healthcare cost. Increasing awareness of SBO and ileus, identification of patients at risk prior to surgery, and implementation of protective strategies are strongly indicated in cystectomy patients.
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