Publications by authors named "Grayden Cook"

Background: Direct-to-consumer (DTC) semen analysis (SA) products obviate barriers that deter men from clinic testing and have made strides in providing higher quality data. However, it is unclear how well these products adhere to the 2021 WHO guidelines on examination and processing of human spermatozoa as they pertain to the evaluation of male fertility.

Objective: We investigate the content and adherence to clinical guidelines associated with consumer-facing information on DTC analysis products.

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Article Synopsis
  • * Out of 982 IPPs placed, only 49 used AMS™ 700 Controlled Expansion Restricted (CXR) cylinders, mainly due to previous infections and ischemic priapism, with a median corporal length of 19 cm.
  • * Post-operative complications were noted in 16.3% of patients, with a satisfaction rate of 73.5%, while primary dissatisfaction stemmed from perceived loss of penile length and girth.
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Background: Limited data are available on the outcomes of patients with non-muscle invasive bladder cancer (NMIBC) unresponsive to intravesical bacillus Calmette-Guérin (BCG), as defined by the United States Food and Drug Administration.

Objective: To define the outcomes of patients with BCG-unresponsive NMIBC.

Methods: This was a retrospective, single-institution observational cohort study.

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Transurethral balloon dilation (BD) is a minimally invasive treatment for urethral stricture disease (USD) performed primarily or as a recurrence salvage maneuver. With the introduction of drug-coated balloons, we sought to characterize patient outcomes using non-medicated balloons. A retrospective review identified patients who underwent BD from 2007 to 2021.

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Introduction: Radical cystectomy (RC) and radical nephroureterectomy (RNU) are commonly performed in urological oncology. Concurrent disease in the upper tract and bladder is rare, so performing both procedures in the same setting is uncommon. Here, we report the perioperative and oncological outcomes of a single-institution series of concurrent RC+RNU.

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Objective: To evaluate the clinical and prognostic details of periurethral abscess (PUA) formation following urethroplasty (UP).

Methods: A retrospective review was performed to identify men who developed PUA after UP between 2007 and 2019 at a single tertiary care referral center. Patient demographics, stricture characteristics, and UP technique were recorded.

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Objective: To evaluate the distance from critical pelvic structures (CPS, defined as bladder and iliac vessels) among inflatable penile prosthesis (IPP) reservoirs placed into the space of Retzius (SOR) and high submuscular (HSM) locations using cross-sectional imaging. IPP reservoir placement into the HSM location has been proposed as a strategy to prevent injury due to greater distance from CPS.

Methods: Our institutional database was retrospectively reviewed to identify men who underwent IPP insertion between 2007 and 2020 and had available cross-sectional abdominopelvic imaging after the time of surgery.

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Background: Inflatable penile prosthesis (IPP) reservoirs are typically placed into the Space of Retzius (SOR) or alternative locations including the High Submuscular (HSM) space via transinguinal (TI) or counter incision (CI) techniques. A cadaver study showed variability in reservoir location after TI-HSM placement.

Aim: To evaluate reservoir location using cross-sectional imaging following IPP insertion.

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Background: At the onset of social distancing, our general surgery residency transitioned its educational curriculum to an entirely virtual format with no gaps in conference offerings. The aim of this study is to examine the feasibility of our evolution to a virtual format and report program attitudes toward the changes.

Methods: On March 15, 2020, due to the coronavirus disease (COVID-19) our institution restricted mass gatherings.

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Objective: Streptococcus pneumoniae is the most frequent bacterial pathogen isolated in subjects with Community-acquired pneumonia (CAP) worldwide. Limited data are available regarding the current global burden and risk factors associated with drug-resistant Streptococcus pneumoniae (DRSP) in CAP subjects. We assessed the multinational prevalence and risk factors for DRSP-CAP in a multinational point-prevalence study.

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