Publications by authors named "Chirag Dave"

Article Synopsis
  • * A study involving 176 patients compared outcomes of those who received vCUT versus those who did not, assessing urinary continence and sexual function over time using validated questionnaires.
  • * Results indicated that 86% of patients with vCUT achieved continence by 3 months post-op compared to 74% without it, but there was no significant difference in sexual function between the two groups by 24 months.
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Importance: Continuous positive airway pressure (CPAP) and high-flow nasal oxygen (HFNO) have been recommended for acute hypoxemic respiratory failure in patients with COVID-19. Uncertainty exists regarding the effectiveness and safety of these noninvasive respiratory strategies.

Objective: To determine whether either CPAP or HFNO, compared with conventional oxygen therapy, improves clinical outcomes in hospitalized patients with COVID-19-related acute hypoxemic respiratory failure.

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Background: Identification of patients who may become hypercapnic, or develop acidotic hypercapnic respiratory failure (AHRF), is important in chronic obstructive pulmonary disease (COPD) to avoid hospital admission and select patients for use of home NIV. This study aimed to identify factors associated with presence and development of hypercapnia.

Methods: 1224 patients, 637 with COPD and 587 with alpha 1 antitrypsin deficiency (AATD), from 4 previously established patient cohorts, were included in cross-sectional analyses of hypercapnia (PaCO ≥ 6.

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Unlabelled: INTRODUCTION Few studies have compared surgical outcomes after 3-piece inflatable penile prosthesis (IPP) surgery in patients exposed to pelvic radiation therapy (RT) compared to a radiation naïve control group.

Materials And Methods: A total of 715 consecutive patients underwent 3-piece IPP placement between 2007-2018. There were 101 men exposed to pelvic RT before or after IPP for a variety of malignancies and 153 men met inclusion criteria for the control group, which included men undergoing IPP surgery with a history of radical prostatectomy but no exposure to pelvic RT.

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Men with neurogenic bladder (NGB) often have concomitant erectile dysfunction and may be considered for inflatable penile prosthesis (IPP) placement. However, it is unclear if NGB is a risk factor for complications associated with IPP placement. The aim of this study is to compare surgical outcomes after IPP placement in a contemporary cohort of patients with NGB to that of a non-neurogenic control group.

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Introduction: Renal mass biopsy is useful in the evaluation of small renal masses. We have previously reported that office based, ultrasound guided renal mass biopsy is safe, effective and feasible when performed by urologists. This study compares office based, ultrasound guided renal mass biopsy performed by urologists and hospital based renal mass biopsy.

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Indwelling catheter placement is a modifiable risk factor for urethral trauma. We implemented a multidisciplinary Foley Project protocol in June 2015, which consisted of a system-wide catheter education program, difficult urinary catheterization (DUC) algorithm, and skilled catheter nursing team to improve patient outcomes. A retrospective review of male DUC consults between June 2014 and September 2015 was performed.

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Objective: To evaluate the safety and efficacy of ultrasound (US)-guided percutaneous renal mass biopsy (RMB) performed in the office setting by urologists.

Materials And Methods: This is a retrospective study involving patients who underwent office-based US-guided percutaneous RMB between April 2010 and October 2015. Baseline vital signs and US were performed prior to the procedure.

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Introduction: Noninvasive ventilation (NIV) improves survival among patients with hypercapnic respiratory failure in hospital, but evidence for its use in domiciliary settings is limited. A patient's underlying risk of having an exacerbation may affect any potential benefit that can be gained from domiciliary NIV. This is the first comprehensive systematic review to stratify patients based on a proxy for exacerbation risk: patients in a stable state and those immediately post-exacerbation hospitalization.

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Background: Nephroureterectomy is the standard of care for transitional cell carcinoma (TCC) involving the upper urinary tract. However, few published case reports exist describing the surgical treatment of ectopic kidneys with TCC. Surgical removal of a pelvic kidney can be complicated by aberrant vasculature supply, a tortuous ureter and abutting anatomical structures.

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Background: Chronic obstructive pulmonary disease (COPD) is a chronic progressive lung disease characterised by non-reversible airflow obstruction. Exacerbations are a key cause of morbidity and mortality and place a considerable burden on health-care systems. While there is evidence that patients benefit from non-invasive ventilation (NIV) in hospital during an acute exacerbation, evidence supporting home use for more stable COPD patients is limited.

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Hemorrhagic cystitis is a rare and severe late complication of pelvic radiation, and there is no regulatory-approved drug treatment. We present an 81-year-old man with a history of localized prostate cancer, which was treated with external beam radiation therapy and subsequently developed severe hemorrhagic radiation cystitis for which he has failed several treatments. We present the novel use of intravesical tacrolimus for the treatment of refractory radiation cystitis and gross hematuria.

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Background: Domiciliary non-invasive ventilation may be used in palliative care of patients with chronic obstructive pulmonary disease, although there is uncertainty regarding effect on quality of life.

Aim: Explore experiences of domiciliary non-invasive ventilation in chronic obstructive pulmonary disease, to understand decision-making processes and improve future palliative care.

Design: Qualitative interview study, based on constructivist grounded theory, and using the framework method for data management and analysis.

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Background And Objective: We sought to elicit predictors of in-hospital mortality for first and subsequent admissions with acidotic hypercapnic respiratory failure (AHRF) in a cohort of chronic obstructive pulmonary disease patients who have undergone ward-based non-invasive ventilation (NIV), and identify features associated with long-term survival.

Methods: Analysis of prospectively collected data at a single centre on patients undergoing NIV for AHRF between 2004 and 2009. Predictors of in-hospital mortality and intubation were sought by logistic regression and predictors of long-term survival by Cox regression.

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Background: Chronic obstructive pulmonary disease (COPD) remains a significant public health burden. Non-invasive ventilation (NIV) is a method of supported breathing used as standard care for acutely unwell patients in hospital with COPD, but there is uncertainty around the potential benefits of using NIV in the treatment of stable patients in a non-hospital setting. This is a protocol for systematic reviews of the clinical and cost-effectiveness of NIV in this context, being undertaken in support of a model based economic evaluation.

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