Publications by authors named "Anna J Black"

Background And Objective: Non-muscle-invasive bladder cancer (NMIBC) patients treated with additional bacillus Calmette-Guérin (BCG) may become unresponsive to BCG. Recently, sequential intravesical gemcitabine and docetaxel (gem/doce) are being used for NMIBC. This study aims to compare oncologic outcomes between sequential intravesical gem/doce versus additional BCG in patients with BCG-unresponsive NMIBC.

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Introduction: In the context of the increasing incidence of kidney stones, we aimed to assess the percentage of the population who are eating an at-risk diet for kidney stones and to understand the baseline diet for future counseling.

Methods: The 2015 Canadian Community Health Survey, a national, cross-sectional instrument administered by Statistics Canada and Health Canada, was queried. Intake of relevant nutrients was compared to dietary risk factors for kidney stone formation.

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Article Synopsis
  • - The study aimed to compare the cancer risks of bladder-sparing therapy (BST) versus radical cystectomy (RC) in patients with BCG-unresponsive non-muscle-invasive bladder cancer (NMIBC).
  • - Data from 578 patients showed no significant differences in survival outcomes between the two treatment options, but the BST group had higher rates of high-grade recurrences and progressions to muscle-invasive bladder cancer (MIBC) over time.
  • - The findings suggest that while BST and upfront RC provide similar survival rates in the intermediate term, patients receiving BST face increasing recurrence and progression risks, particularly with additional treatment attempts.
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Article Synopsis
  • Cisplatin-based neoadjuvant chemotherapy (NAC) is commonly used in muscle-invasive bladder cancer patients but can lead to renal toxicity, and radical cystectomy (RC) itself is a risk factor for renal injury.
  • An analysis of 234 patients showed a significant decrease in estimated glomerular filtration rate (eGFR) after receiving NAC, with a 17% decline and an increase in chronic kidney disease stage ≥3 from 27% to 50% one year after surgery.
  • In comparison, a control group that underwent RC without NAC had a smaller eGFR decline of 6% and a baseline higher incidence of stage ≥3 CKD, highlighting the renal risks associated with NAC prior to surgery
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Purpose: Cisplatin-based chemotherapy followed by radical cystectomy (RC) is recommended in patients with muscle-invasive bladder cancer (MIBC). However, up to 50% of patients are cisplatin ineligible. The aim of this study was to compare clinical outcomes after ≥ 3 cycles of preoperative gemcitabine-carboplatin (gem-carbo) versus gemcitabine-cisplatin (gem-cis).

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Introduction: Allograft ureteral strictures after renal transplantation impact graft function and increase patient morbidity. They can be challenging to treat and may require complex surgical repair. Therefore, the objective of this study was to identify contemporary risk factors for the development of post-renal transplant ureteral strictures.

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Urothelial carcinoma differentiates into variant histological subtypes in approximately 25% of cases. Since every histological variant has unique characteristics, including metastatic potential, expression of immunotherapy targets, and susceptibility to radiation or chemotherapy, every variant offers a unique diagnostic and therapeutic challenge. However, since any single variant is relatively rare, there is a risk of missed pathological diagnosis and sub-optimal clinical management.

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Aim: To determine the impact of surgical technique on the incidence of perineal hernia after abdominoperineal resection (APR).

Methods: A retrospective analysis was performed on patients who underwent APR between May 2007 and March 2018 at our institution using our prospectively maintained Colorectal Cancer Database. Demographic and clinical parameters were compared between the open APR (OAPR) and laparoscopic APR (LAPR) groups using Student's t test, chi-squared, or Fisher's exact test.

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Article Synopsis
  • - This study investigates the differences in prevalence and outcomes of surgically correctable congenital anomalies between males and females by conducting a systematic review based on PRISMA guidelines, analyzing data from 68 studies out of 42,722 identified.
  • - It was found that males had significantly higher prevalence rates of 10 out of 14 congenital anomalies, such as Hirschsprung's disease and congenital diaphragmatic hernia, while females exhibited a higher prevalence of biliary anomalies like atresia and choledochal cyst.
  • - The research concludes that males generally have higher rates of most congenital anomalies, suggesting the need for further studies to explore the embryological reasons behind these differences and their impact on health outcomes.
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Introduction: The neutrophil-to-lymphocyte ratio (NLR) is an attractive marker because it is derived from routine bloodwork. NLR has shown promise as a prognostic factor in muscle invasive bladder cancer (MIBC) but its value in patients receiving neoadjuvant chemotherapy (NAC) before radical cystectomy (RC) is not yet established. Since NLR is related to an oncogenic environment and poor antitumor host response, we hypothesized that a high NLR would be associated with a poor response to NAC and would remain a poor prognostic indicator in patients receiving NAC.

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