Publications by authors named "Pedro G Knijnik"
Article Synopsis
- The study looked at men's experiences after getting an artificial urinary sphincter (AUS) surgery again after having it fixed multiple times.
- Most men felt good about their initial surgery, but some didn't know the device needed future fixes and wanted better follow-up care.
- Overall, the AUS helped reduce how many pads they used for incontinence, showing it worked well for most of them.
Purpose: To evaluate the neurovascular bundle preservation grades during robotic-assisted radical prostatectomy and compared to the trifecta combined outcome (oncologic control, continence, and sexual function) twelve months after the surgery.
Methods: Cohort of patients who underwent nerve-sparing robotic-assisted radical prostatectomy had the neurovascular bundle preservation retrospectively graded from 0 to 8 according to the Hopkins subjective visual classification. Patients then were divided into two groups, according to the median of nerve-sparing grading: those with score six or high and those with score less than six.
Article Synopsis
- The study investigated how previous radiation therapy impacts the lifespan and failure rates of artificial urinary sphincters (AUSs) in men.
- It found that men with a history of radiation experienced significantly shorter times to device failure compared to those without (1.4 years vs. 3.5 years).
- Specifically, prior radiation dramatically increased the risk of erosion or infection related to the AUS but did not affect the risk of urethral atrophy or mechanical failures.
Objective: To evaluate the diagnostic accuracy of the Radiological Society of North America (RSNA) classification system for coronavirus disease 2019 (COVID-19) pneumonia compared to pre-pandemic chest computed tomography (CT) scan images to mitigate the risk of bias regarding the reference standard.
Materials And Methods: This was a retrospective, cross-sectional, diagnostic test accuracy study. Chest CT scans, carried out from May 1 to June 30, 2020, and from May 1 to July 17, 2017, were consecutively selected for the COVID-19 (positive reverse transcription-polymerase chain reaction [RT-PCR] for severe acute respiratory syndrome coronavirus 2 result) and control (pre-pandemic) groups, respectively.
Purpose: This study aims to evaluate the impact of 5-alpha-reductase inhibitors (5ARI) for prostate cancer (PCa) primary prevention on specific and overall mortality (primary outcomes), the incidence of PCa diagnosis and disease aggressiveness (secondary outcomes).
Methods: We searched MEDLINE, EMBASE, Cochrane, ClinicalTrials and BVS through April 2018 according to the Preferred Reporting Items for Systematic Review and Meta-analysis (PRISMA) statement to identify randomized clinical trials (RCT) and cohort studies (CS). We included articles with data on mortality or PCa incidence for men using 5ARI previously to PCa diagnosis.
Introduction: Transient tissue elastography (TTE) may estimate the degree of hepatic fibrosis in patients with obesity, but the method has restrictions that are mainly related to patients' BMI.
Purpose: To compare the results of the evaluation of hepatic fibrosis by biochemical methods and TTE with those determined by liver biopsy in patients after RYGB.
Methods: This was a cross-sectional study involving patient data, TTE, and liver biopsy 1 year after RYGB.