BACKGROUND: An intravesical gas explosion is a rare complication of transurethral resection of the prostate (TURP). It was first reported in English literature in 1926, and up to 2022 were only forty-one cases. Injury from an intravesical gas explosion, in the most severe cases appearing as extraperitoneal or intraperitoneal bladder rupture needed emergent repair surgery.
METHODS: We present a case of a 75-year-old man who suffered an intravesical gas explosion during TURP. The patient underwent an emergent exploratory laparotomy for bladder repair and was transferred to the intensive care unit for further observation and treatment. Under the medical team\'s care for up to sixty days, the patient recovered smoothly without clinical sequelae.
CONCLUSIONS: This case report presents an example of a rare complication of intravesical gas explosion during TURP, utilizing root cause analysis (RCA) to comprehend causal relationships and team strategies and tools to improve performance and patient safety (TeamSTEPPS) method delivers four teamwork skills that can be utilized during surgery and five recommendations to avoid gas explosions during TURP to prevent the recurrence of medical errors. In modern healthcare systems, promoting patient safety is crucial. Once complications appear, RCA and TeamSTEPPS are helpful means to support the healthcare team reflect and improve as a team.

OBJECTIVE: This study aimed to evaluate the efficacy and safety of Vibegron for the treatment of residual overactive bladder (OAB) symptoms after laser vaporization of the prostate (photo-selective vaporization of the prostate, contact laser vaporization of the prostate, and thulium laser vaporization).
METHODS: This randomized, open-label, parallel-group, single-center superiority trial with a 12-week observation (jRCTs071190040) enrolled male patients with OAB aged 40 years or older who had undergone laser vaporization of the prostate for not less than 12 weeks and not more than 1 year earlier. Patients were allocated to receive Vibegron 50 mg once daily or follow-up without treatment for 12 weeks.
RESULTS: Forty-seven patients were enrolled between January 2020 and March 2023. The median age (interquartile range) was 75.5 (72.5-78.5) years for the Vibegron group and 76.5 (71.0-81.0) years for the control group. The intergroup difference in the mean change (95% confidence interval) in the 24-hour urinary frequency at 12 weeks after randomization was -3.66 (-4.99, -2.33), with a significant decrease for the Vibegron group. The Overactive Bladder Symptom Score, International Prostate Symptom Score, IPSS storage score, and Overactive Bladder Questionnaire score significantly improved for the Vibegron group. Voided volume per micturition also increased for the Vibegron group.
CONCLUSIONS: The administration of 50 mg of Vibegron once daily for 12 weeks showed significant improvement compared with follow-up without treatment in bladder storage (OAB) symptoms after laser vaporization of the prostate for symptomatic benign prostatic hyperplasia.

OBJECTIVE: We aimed to evaluate the effect of self-training using a virtual reality head-mounted display simulator on the acquisition of surgical skills for holmium laser enucleation surgery.
METHODS: Thirteen medical students without surgical skills for holmium laser enucleation of the prostate were trained using multimedia to learn the technique via simulator manipulation. Thereafter, participants performed the technique on a virtual benign prostatic hyperplasia model A (test A). After a 1-week wash-out period, they underwent self-training using a simulator and performed the technique on model B (test B). Subsequently, participants were asked to respond to Training Satisfaction Questions. Video footage of hand movements and endoscope view were recorded during tests A and B for later review by 2 expert surgeons. A 20-step Assessment Checklist, 6-domain Global Rating Scale, and a Pass Rating were used to compare performance on tests A and B.
RESULTS: Thirteen participants completed both tests A and B. The 20-step Assessment Checklist and 6-domain Global Rating Scale evaluation results showed significantly improved scores in test B than in test A (P<0.05). No evaluator rated participants as passed after test A, but 11 participants (84.6%) passed after test B. Ten participants (76.9%) indicated that the simulator was helpful in acquiring surgical skills for holmium laser enucleation of the prostate.
CONCLUSIONS: The virtual reality head-mounted display holmium laser enucleation of the prostate simulator was effective for surgical skill training. This simulator may help to shorten the learning curve of this technique in real clinical practice in the future.

OBJECTIVE: Perioperative neurocognitive disorders (PND) are a group of prevalent neurological complications that often occur in elderly individuals following major or emergency surgical procedures. The etiologies are not fully understood. This study endeavored to investigate novel targets and prediction methods for the occurrence of PND.
METHODS: A total of 229 elderly patients diagnosed with prostatic hyperplasia who underwent transurethral resection of the prostate (TURP) combined with spinal cord and epidural analgesia were included in this study. The patients were divided into two groups, the PND group and non-PND group, based on the Z-score method. According to the principle of maintaining consistency between preoperative and intraoperative conditions, three patients from each group were randomly chosen for serum sample collection. isobaric tags for relative and absolute quantification (iTRAQ) proteomics technology was employed to analyze and identify the proteins that exhibited differential expression in the serum samples from the two groups. Bioinformatics analysis was performed on the proteins that exhibited differential expression.
RESULTS: Among the 1101 serum proteins analyzed in the PND and non-PND groups, eight differentially expressed proteins were identified in PND patients. Of these, six proteins showed up-regulation, while two proteins showed down-regulation. Further bioinformatics analysis of the proteins that exhibited differential expression revealed their predominant involvement in cellular biological processes, cellular component formation, as well as endocytosis and phagocytosis Additionally, these proteins were found to possess the RING domain of E3 ubiquitin ligase.
CONCLUSIONS: The iTRAQ proteomics technique was employed to analyze the variation in protein expression in serum samples from patients with PND and those without PND. This study successfully identified eight proteins that exhibited differential expression levels between the two groups. Bioinformatics analysis indicates that proteins exhibiting differential expression are primarily implicated in the biological processes associated with microtubules. Investigating the microtubule formation process as it relates to neuroplasticity and synaptic formation may offer valuable insights for enhancing our comprehension and potential prevention of PND.
BACKGROUND: Registered (ChiCTR2000028836). Date (20190306).

OBJECTIVE: Following transurethral resection of the prostate (TURP), there is no clear recommendation for the catheter duration, and objective criteria are needed to determine appropriate time for trial off catheter. Current study is aimed to identify the high-risk patients for failed trial off catheter and the association with preoperative voiding efficiency with postoperative failed trial without catheter.
METHODS: This is cross-sectional single institutional study. All eligible patients who underwent TURP were followed preoperatively for symptoms and workup, including voiding efficiency based on ultrasound findings, intraoperatively for resection parameters, and postoperatively for a trial off a catheter. All the findings were documented, and the data were analyzed on SPSS(TM) 22. Demographic variables were calculated in the form of frequency and percentages. The association of voiding efficiency with failed trials off catheters was checked through Chi-square and binary logistic regression analysis.
RESULTS: 132 patients were included in the study. The mean voiding efficiency was 57.5%. Based on voiding efficiency cut off, of 50%, patients were divided into two groups. The association between voiding efficiency and failed trials off catheters was not found to be statistically significant, with a p value of 0.79. Only prevoid volume, postvoid volume, duration of symptoms, and upper tract damage were found to be statistically significant predictors of failed trial off catheter, with a p value of < 0.05.

OBJECTIVE: Transurethral resection of the prostate (TURP) is one of the surgical options for treating enlarged prostates with lower urinary symptoms (LUTS). In this older group of patients, concomitant prostate cancer is not uncommon. However, the fibrosis and distortion of the prostate anatomy by prior TURP can potentially hinder surgical efficacy at robotic-assisted radical prostatectomy (RARP). We aim to evaluate functional, and oncologic outcomes of RARP in patients with and without previous TURP.
METHODS: 231 men with previous TURP underwent RARP (TURP group). These men were propensity score matched using clinicopathological characteristics to men without previous TURP who underwent RARP (Control group). Perioperative and postoperative variables were analysed for significant differences in outcomes between groups. Variables analysed included estimated blood loss (EBL), operative time, catheter time, hospitalization time, postoperative complications, positive surgical margins (PSM) rates, cancer status, biochemical recurrence (BCR), potency, and continence rates.
RESULTS: Patients in the TURP group showed no statistically significant differences in operative safety measures including median EBL, operative time, catheter time, hospitalization time or postoperative complications. No significant difference between the groups in terms of potency rates and continence rates. Furthermore, there were no statistically significant differences in oncological outcomes, including PSM rates (15% vs 18%, P = 0.3) and BCR.
CONCLUSIONS: In RARP after TURP there is often noticeable distortion of the surgical anatomy. For an experienced team the procedure is safe and provides similar oncologic control and functional outcomes to RARP in patients without previous TURP.

This study assesses the morphological effectiveness of benign prostatic hyperplasia (BPH) surgery using multislice spiral computed tomography three-dimensional imaging (CT3D) with urethral contrast. Twenty-five male patients with BPH and bladder outlet obstruction (BOO) who underwent bipolar transurethral resection of the prostate were selected. Preoperative and postoperative CT3D indicators of retrograde and voiding cystourethrography, including bladder neck diameter, length of the posterior urethra, and degree of prostate protrusion into the bladder and upper and lower diameter of the prostate were used to assess bladder neck and posterior urethra morphology and BOO severity. In addition, preoperative and postoperative International Prostate Symptom Scores and maximum urine flow rates were compared. Postoperative CT3D was used to evaluate changes following obstruction relief postsurgery. Preoperative CT3D indicated significant BOO, whereas postoperative imaging showed improved patency but with irregular posterior urethral lumens and varying degrees of residual glandular tissue. Comparative analysis of preoperative and postoperative bladder outlet metrics revealed significant changes (p < .05). Urethral contrast CT3D effectively visualizes the prostate, bladder neck, and prostatic urethra. It quantifies changes in the urethral lumen postsurgery, correlating the extent of posterior urethral lumen spaciousness with urinary flow rates.

BACKGROUND: Previous studies noted varied adherence to clinical practice guidelines (CPGs), but studies are yet to quantify adherence to American Urological Association BPH guidelines. We studied guideline adherence in the context of a new quality improvement collaborative (QIC).
METHODS: Data were collected as part of a statewide QIC. Medical records for patients undergoing select CPT codes from January 2020 to May 2022 were retrospectively reviewed for adherence to selected BPH guidelines.
RESULTS: Most men were treated with transurethral resection of the prostate. Notably, 53.3% of men completed an IPSS and 52.3% had a urinalysis. 4.7% were counseled on behavioral modifications, 15.0% on medical therapy, and 100% on procedural options. For management, 79.4% were taking alpha-blockers and 59.8% were taking a 5-ARI. For evaluation, 57% had a PVR, 63.6% had prostate size measurement, 37.4% had uroflowmetry, and 12.3% were counseled about treatment failure. Postoperatively, 51.6% completed an IPSS, 57% had a PVR, 6.50% had uroflowmetry, 50.6% stopped their alpha-blocker, and 75.0% stopped their 5-ARI.
CONCLUSIONS: There was adherence to preoperative testing recommendations, but patient counseling was lacking in the initial work-up and preoperative evaluation. We will convey the data to key stakeholders, expand data collection to other institutions, and devise an improvement implementation plan.

With the development of analytical methods, mathematical models based on humoral biomarkers have become more widely used in the medical field. This study aims to investigate the risk factors associated with the occurrence of bladder spasm after transurethral resection of the prostate (TURP) in patients with prostate enlargement, and then construct a nomogram model.
Two hundred and forty-two patients with prostate enlargement who underwent TURP were included. Patients were divided into Spasm group (n=65) and non-spasm group (n=177) according to whether they had bladder spasm after surgery. Serum prostacyclin (PGI2) and 5-hydroxytryptamine (5-HT) levels were measured by enzyme-linked immunoassay. Univariate and multivariate logistic regression were used to analyze the risk factors.
Postoperative serum PGI2 and 5-HT levels were higher in patients in the Spasm group compared with the Non-spasm group (P<0.05). Preoperative anxiety, drainage tube obstruction, and elevated postoperative levels of PGI2 and 5-HT were independent risk factors for bladder spasm after TURP (P<0.05). The C-index of the model was 0.978 (0.959-0.997), with a χ2 = 4.438 (p = 0.816) for Hosmer-Lemeshow goodness-of-fit test. The ROC curve to assess the discrimination of the nomogram model showed an AUC of 0.978 (0.959-0.997).
Preoperative anxiety, drainage tube obstruction, and elevated postoperative serum PGI2 and 5-HT levels are independent risk factors for bladder spasm after TURP. The nomogram model based on the aforementioned independent risk factors had good discrimination and predictive abilities, which may provide a high guidance value for predicting the occurrence of bladder spasm in clinical practice.

UNASSIGNED: This study aims to assess the feasibility and safety of same-day discharge after transurethral resection of the prostate.
UNASSIGNED: Five years of records were retrospectively analysed. Length of stay categorised patients into Groups 1 (same-day discharge) and 2 (standard-length discharge). Logistic regression analysis was performed, controlling for clinicodemographic factors. Student\'s t-test compared continuous bladder irrigation and catheter dwell times.
UNASSIGNED: A total of 459 patients were identified between 2016 and 2021, 280 in Group 1 and 179 in Group 2, with median ages of 71.0 (interquartile range 36-92) and 72.0 (interquartile range 47-101) years (p = 0.067), respectively. Same-day discharge rates notably increased post-2018 (p = 0.025). Median prostate tissue resected in Group 2 was 7.1g (3.4-12.4g) and in Group 1 was 4.9g (2.4-10.2g; p = 0.034). While continuous bladder irrigation >1 hour was significantly lower in Group 1 than Group 2 (96.8% versus 27.4%; p = 0.0001), catheter dwell times were comparable (70.1 and 70.8 hours, respectively). Control-adjusted results showed a 40% reduction in emergency department representation odds for Group 1 compared with Group 2 (odds ratio = 0.60; 95% confidence interval = 0.37-0.99; p = 0.04). Length of stay was not significantly associated with hospital readmissions (p = 0.11). Continuous bladder irrigation for <1 hour in Group 1 was associated with a reduced emergency department representation (odds ratio = 0.43; 95% confidence interval = 0.197-0.980) but not readmission (odds ratio = 0.413; 95% confidence interval = 0.166-1.104).
UNASSIGNED: Same-day discharge post-transurethral resection of the prostate may be a viable and safe option for carefully selected patients.