Full Text Journal Articles by
Author Chad Tracy

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Number of cores needed to diagnose prostate cancer during MRI targeted biopsy decreases after the learning curve.

Mark D Bevill, Victoria Troesch, Justin N Drobish, Kevin J Flynn, Maheen Rajput, Catherine M Metz, Paul T Gellhaus, Chad R Tracy,

<h4>Introduction</h4>We hypothesized that the number of cores needed to detect prostate cancer would decrease with increasing MRI-targeted biopsy (TBx) experience.<h4>Methods</h4>All patients undergoing TBx at our institution from May 2017 to August 2019 were enrolled in a prospectively maintained database. Five biopsy cores were obtained from each lesion ≥3 on PI-RADS ... Read more >>

Urol Oncol (Urologic oncology)
[2021, :]

Cited: 0 times

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Virtual Advanced Electives in Urology: A Survey of Student Perceptions.

Austin G Kazarian, Holly K Conger, Chad R Tracy,

<h4>Objective</h4>To gather medical student perceptions and learner preferences regarding virtual advanced electives.<h4>Design</h4>An 8-question survey regarding perceived usefulness and preferred structure of virtual advanced electives as well as miscellaneous suggestions and concerns.<h4>Setting</h4>University of Iowa in Iowa City, IA, a tertiary care center, as well as social media.<h4>Participants</h4>Eighty-four self-identified academic staff and ... Read more >>

J Surg Educ (Journal of surgical education)
[2021, :]

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Do patients with a PI-RADS 5 lesion identified on magnetic resonance imaging require systematic biopsy in addition to targeted biopsy?

Justin N Drobish, Mark D Bevill, Chad R Tracy, Shawn M Sexton, Maheen Rajput, Catherine M Metz, Paul T Gellhaus,

<h4>Introduction</h4>Magnetic Resonance Imaging (MRI)-targeted prostate biopsy (MRI-TB) improves the detection of prostate cancer. These biopsies typically involve both a 12-core systematic biopsy (SB) and MRI-TB of the lesion. Since the majority of PI-RADS 5 lesions represent clinically significant cancers, the utility of SB in addition to MRI-TB is unclear. We ... Read more >>

Urol Oncol (Urologic oncology)
[2021, 39(4):235.e1-235.e4]

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Re: "Using Low-Calorie Orange Juice as a Dietary Alternative to Alkali Therapy" by Large et al.

Mohammed Said, Chad R Tracy, Ryan L Steinberg,

J Endourol (Journal of endourology)
[2021, 35(6):891]

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Optimizing MRI-targeted prostate biopsy: the diagnostic benefit of additional targeted biopsy cores.

Chad R Tracy, Kevin J Flynn, Daniel D Sjoberg, Paul T Gellhaus, Catherine M Metz, Behfar Ehdaie,

<h4>Introduction</h4>The optimal number of biopsy cores to obtain during MRI-targeted prostate biopsy remains ill-defined. This study sought to determine the optimal number of targeted biopsy cores to obtain from a region of interest to maximize detection of clinically significant prostate cancer.<h4>Materials and methods</h4>Consecutive patients undergoing MRI-targeted prostate biopsy at a ... Read more >>

Urol Oncol (Urologic oncology)
[2021, 39(3):193.e1-193.e6]

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Initial Results from the M-STONE Group: A Multi-Center Collaboration to Study Treatment Outcomes in Nephrolithiasis Evaluation.

Brett A Johnson, Sara L Best, Stephen Y Nakada, Chad Tracy, Ryan L Steinberg, Lewis Thomas, Tracy Marien, Nicole Miller, Elly Kolitz, Adam Cohen, Margaret S Pearle, Yair Lotan, Jodi A Antonelli,

<b><i>Introduction:</i></b> Despite proven effectiveness of medications in preventing stone recurrence, compliance with pharmacotherapy (PT) is often poor because of cost, side effects, and impact on lifestyle. We sought to compare the risk of stone recurrence between patients managed with conservative therapy (CT) <i>vs</i> PT controlling for aggressiveness of stone disease. ... Read more >>

J Endourol (Journal of endourology)
[2020, 34(9):919-923]

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Incidence and preoperative predictors for major complications following radical nephroureterectomy.

Neil J Kocher, David Canes, Karim Bensalah, Morgan Roupret, Costas Lallas, Vitaly Margulis, Shahrokh Shariat, Pierre Colin, Surena Matin, Chad Tracy, Evanguelos Xylinas, Andrew Wagner, Mathieu Roumiguie, Wassim Kassouf, Tobias Klatte, Jay D Raman,

<h4>Background</h4>Radical nephroureterectomy (RNU) is the referent standard for managing bulky, invasive, or high grade upper-tract urothelial carcinoma (UTUC). The UTUC patient population, however, generally harbor medical comorbidities thereby placing them at risk of surgical complications. This study reviews a large international cohort of RNU patients to define the risk of ... Read more >>

Transl Androl Urol (Translational andrology and urology)
[2020, 9(4):1786-1793]

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Comparison of the Comprehensive Complication Index and Clavien-Dindo systems in predicting perioperative outcomes following radical nephroureterectomy.

Scott Geiger, Neil Kocher, Dan Illinsky, Evanguelos Xylinas, Peter Chang, Lauren Dewey, Andrew A Wagner, Firas Petros, Surena F Matin, Conrad Tobert, Chad Tracy, Pierre-Marie Patard, Mathieu Roumiguie, Leonardo Lima Monteiro, Wassim Kassouf, Jay D Raman,

<h4>Background</h4>Complications can occur following radical nephroureterectomy (RNU) in 20-40% of patients. The Comprehensive Complication Index (CCI) is an alternative grading system to the Clavien-Dindo (CD) grading system that aggregates all complications experienced by a patient on a continuous (as opposed to categorical) scale. We investigate whether the cumulative nature of ... Read more >>

Transl Androl Urol (Translational andrology and urology)
[2020, 9(4):1780-1785]

Cited: 1 time

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Outcomes of Microwave Ablation for Small Renal Masses: A Single Center Experience.

Courtney Yong, Sarah L Mott, Sandeep Laroia, Chad R Tracy,

<b><i>Purpose:</i></b> To investigate the safety of microwave ablation (MWA) as an emerging technology for treating small renal masses. <b><i>Materials and Methods:</i></b> Patients with renal masses treated at a high-volume center with MWA between March 2015 and June 2019 were retrospectively identified. Safety, changes in renal function, primary treatment efficacy, and ... Read more >>

J Endourol (Journal of endourology)
[2020, 34(11):1134-1140]

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The Effect of Improving Basic Preventive Measures in the Perioperative Arena on Staphylococcus aureus Transmission and Surgical Site Infections: A Randomized Clinical Trial.

Randy W Loftus, Franklin Dexter, Michael J Goodheart, Megan McDonald, John Keech, Nicolas Noiseux, Andrew Pugely, William Sharp, Mel Sharafuddin, W Thomas Lawrence, Mark Fisher, Patrick McGonagill, Jennifer Shanklin, Dionne Skeete, Chad Tracy, Bradley Erickson, Thomas Granchi, Lance Evans, Eli Schmidt, Joshua Godding, Raven Brenneke, Deanna Persons, Alexia Herber, Mark Yeager, Brent Hadder, Jeremiah R Brown,

<h4>Importance</h4>Surgical site infections increase patient morbidity and health care costs. The Centers for Disease Control and Prevention emphasize improved basic preventive measures to reduce bacterial transmission and infections among patients undergoing surgery.<h4>Objective</h4>To assess whether improved basic preventive measures can reduce perioperative Staphylococcus aureus transmission and surgical site infections.<h4>Design, setting, and ... Read more >>

JAMA Netw Open (JAMA network open)
[2020, 3(3):e201934]

Cited: 6 times

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Quantitative Test-Retest Measurement of 68Ga-PSMA-HBED-CC in Tumor and Normal Tissue.

Janet H Pollard, Caleb Raman, Yousef Zakharia, Chad R Tracy, Kenneth G Nepple, Tim Ginader, Patrick Breheny, John J Sunderland,

The PET radiotracer <sup>68</sup>Ga-PSMA (prostate-specific membrane antigen)-HBED-CC (<i>N,N</i>'-bis [2-hydroxy-5-(carboxyethyl)benzyl]ethylenediamine-<i>N,N</i>'-diacetic acid) shows potential as an imaging biomarker for recurrent and metastatic prostate cancer. The purpose of this study was to determine the repeatability of <sup>68</sup>Ga-PSMA-HBED-CC in a test-retest trial in subjects with metastatic prostate adenocarcinoma. <b>Methods:</b> Subjects with metastatic prostate cancer ... Read more >>

J Nucl Med (Journal of nuclear medicine : official publication, Society of Nuclear Medicine)
[2020, 61(8):1145-1152]

Cited: 4 times

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Increasing the size of ureteral access sheath during retrograde intrarenal surgery improves surgical efficiency without increasing complications.

Chad R Tracy, George M Ghareeb, Charles J Paul, Nathan A Brooks,

PURPOSE:To directly compare intraoperative and post-operative outcomes and complications between three groups undergoing ureteroscopy: no ureteral access sheath, 12/14 Fr and larger 14/16 Fr ureteral access sheaths (UAS). METHODS:We retrospectively reviewed demographic, pre-operative, intraoperative, and post-operative data of 257 patients who underwent ureteroscopy for nephrolithiasis by a single surgeon from ... Read more >>

World J Urol (World journal of urology)
[2018, 36(6):971-978]

Cited: 2 times

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Pilot Study to Determine Optimal Stent Duration Following Ureteroscopy: Three versus Seven days.

Charles J Paul, Nathan A Brooks, George M Ghareeb, Chad R Tracy,

<h4>Background/aims</h4>Many providers elect to place a stent following ureteroscopy for nephrolithiasis, but little data exists on the optimal duration to leave a stent. We sought to determine whether there are any differences in post-operative outcomes for patients with a 3 versus 7-day stent following ureteroscopy.<h4>Methods</h4>We retrospectively reviewed 247 patients who ... Read more >>

Curr Urol (Current urology)
[2018, 11(2):97-102]

Cited: 1 time

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Is More Always Better? An Assessment of the Impact of Lymph Node Yield on Outcome for Clinically Localized Prostate Cancer with Low/Intermediate Risk Pathology (pT2-3a/pN0) Managed with Prostatectomy Alone.

Steven N Seyedin, Darrion L Mitchell, Sarah L Mott, J Kyle Russo, Chad R Tracy, Anthony N Snow, Jessica R Parkhurst, Mark C Smith, John M Buatti, John M Watkins,

The clinical impact of lymph node dissection extent remains undetermined in the contemporary setting, as reflected in care pattern variations. Despite some series demonstrating a direct relationship between number of lymph nodes identified and detection of nodal involvement, the correlation between lymph node yield and disease control or survival outcomes ... Read more >>

Pathol Oncol Res (Pathology oncology research : POR)
[2019, 25(1):209-215]

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Intraductal Laser Fiber Tip Fracture and Retrieval During Sialendoscopic Laser-Assisted Lithotripsy.

Andrew J Goates, Raymond W Kung, Chad R Tracy, Henry T Hoffman,

Fragmentation of flexible laser fiber tips has been reported to occur during therapeutic bronchoscopy and urologic stone treatment. We report fragmentation of 200-µm single-use silica-based fibers during sialendoscopy-controlled Holmium:YAG laser treatment of a parotid and a submandibular stone. The technique employed to successfully retrieve the fiber tips is described in ... Read more >>

Ann Otol Rhinol Laryngol (The Annals of otology, rhinology, and laryngology)
[2017, 126(11):774-777]

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Novel Management of Anastomotic Disruption and Persistent Hematuria Following Robotic Prostatectomy: Case Report and Review of the Literature.

Charles J Paul, Conrad M Tobert, Chad R Tracy,

Vesicourethral anastomosis leaks are not uncommon following radical prostatectomy. We present a case of a 59-year-old male who presented to our ED with hematuria, abdominal pain, and clot retention 17 days after a robotic-assisted laparoscopic prostatectomy. A 50% vesicourethral disruption was ultimately managed endoscopically and with hemostatic agents. At 9-month ... Read more >>

Urol Case Rep (Urology case reports)
[2017, 11:28-29]

Cited: 2 times

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Pushing Stones Uphill: Why Patients Are Lost to Follow-Up After Uncomplicated Ureteroscopy.

Nathan A Brooks, Charles J Paul, George M Ghareeb, Chad R Tracy,

<h4>Introduction</h4>We sought to determine the rate of and factors associated with patient nonadherence to prescribed follow-up after uncomplicated ureteroscopy.<h4>Materials and methods</h4>The records of 247 consecutive patients who underwent ureteroscopy at a tertiary referral center from November 2010 to February 2016 were reviewed. Bivariate and multivariate analyses were performed to determine ... Read more >>

J Endourol (Journal of endourology)
[2017, 31(2):135-140]

Cited: 2 times

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Gleason Score ≤ 6 Prostate Cancer at Radical Prostatectomy: Does a High-Risk Setting Truly Exist? A Recursive Partitioning Analysis.

John M Watkins, Darrion L Mitchell, J Kyle Russo, Sarah L Mott, Chad R Tracy, Mark C Smith, John M Buatti,

<h4>Background</h4>The purpose of this study was to determine whether a "high-risk" subpopulation of low-grade (Gleason score ≤6) prostate cancer defined by lower prostate-specific antigen (PSA) relapse-free survival (bRFS) might be identified within a large population of men who underwent radical prostatectomy (RP) alone, with mature follow-up.<h4>Patients and methods</h4>Patients were retrospectively identified ... Read more >>

Clin Genitourin Cancer (Clinical genitourinary cancer)
[2017, 15(2):242-247]

Cited: 0 times

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Impact of Robotic Fellowship Experience on Perioperative Outcomes of Robotic-Assisted Laparoscopic Partial Nephrectomy.

Michael A Moriarty, Kenneth G Nepple, Chad R Tracy, Michael E Strigenz, Daniel K Lee, James A Brown,

<h4>Background</h4>We analyzed differences in patient selection and perioperative outcomes between robotic-fellowship trained and non-fellowship trained surgeons in their initial experience with robotic-assisted laparoscopic partial nephrectomy.<h4>Methods</h4>Data through surgeon case 10 was analyzed. Forty patients were identified from two fellowship trained surgeons (n = 20) and two non-fellowship trained surgeons (n = ... Read more >>

Curr Urol (Current urology)
[2016, 9(1):19-23]

Cited: 3 times

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Endoscopic Salivary Stone Fragmentation with Pneumatic Lithotripsy in a Simulation Model.

Henry T Hoffman, Rohan R Walvekar, Chad R Tracy, Jack Kolenda, Nitin Pagedar,

<h4>Objective</h4>To evaluate the endoscopic fragmentation and removal of human salivary stones by employing intracorporeal pneumatic lithotripsy in a clinical simulation model of the submandibular gland.<h4>Study design</h4>Simulation model evaluating endoscopic management of human salivary stones.<h4>Setting</h4>Laboratory.<h4>Subjects and methods</h4>A flexible nitinol contact probe adapted to a CO2-driven handheld salivary pneumatic lithotripter was deployed ... Read more >>

Otolaryngol Head Neck Surg (Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery)
[2016, 154(3):454-459]

Cited: 1 time

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Individualization of Adjuvant Therapy After Radical Prostatectomy for Clinically Localized Prostate Cancer: Current Status and Future Directions.

Darrion L Mitchell, Chad R Tracy, John M Buatti, Mark C Smith, Anthony N Snow, Michael D Henry, Daniel A Vaena, Hamed H Tewfik, John M Watkins,

Radiation therapy indications in the postprostatectomy setting are evolving. Several retrospective series have identified a number of "high-risk" pathologic features associated with an elevated risk of disease recurrence after radical prostatectomy. More recently, several randomized phase III trials demonstrated superior biochemical relapse-free survival for adjuvant radiation therapy after prostatectomy for ... Read more >>

Clin Genitourin Cancer (Clinical genitourinary cancer)
[2016, 14(1):12-21]

Cited: 5 times

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Radiation Exposure During Percutaneous Ablation of Small Renal Masses: A Multi-Institutional Multimodality Analysis.

Chad Robert Tracy, Paul Kogan, Amit Gupta, Jeffrey C Gahan, Nithin P J Theckumparampil, Sammy E Elsamra, Zhamshid Okunov, Shiliang Sun, Chandana Lall, Igor Lobko, Jaime Landman, Jeffrey A Cadeddu, Louis R Kavoussi,

<h4>Objective</h4>To understand the effective radiation dose during percutaneous cryoablation (CA) and radiofrequency ablation (RFA) and characterize variables that may affect the individual dose.<h4>Materials and methods</h4>The effective radiation dose was determined by conversion of the dose-length product from CT scans performed during percutaneous CA or RFA for patients with solitary renal ... Read more >>

J Endourol (Journal of endourology)
[2015, 29(11):1314-1320]

Cited: 4 times

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Evaluating the safety of intraoperative instillation of intravesical chemotherapy at the time of nephroureterectomy.

Michael A Moriarty, Matthew A Uhlman, Megan T Bing, Michael A O'Donnell, James A Brown, Chad R Tracy, Sundeep Deorah, Kenneth G Nepple, Amit Gupta,

<h4>Background</h4>Urothelial carcinoma (UC) is a common cancer affecting many patients in the United States. Nephroureterectomy remains the gold standard for the treatment of high grade upper tract disease or low grade tumors that are not amenable to endoscopic management. Recent reports have shown a decrease in UC recurrence in patients ... Read more >>

BMC Urol (BMC urology)
[2015, 15:45]

Cited: 4 times

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Treatment of Fungal Urinary Tract Infection.

Lewis Thomas, Chad R Tracy,

Funguria, and particularly candiduria, is an increasingly common problem encountered by the practicing urologist and is associated with high-acuity care, indwelling catheters, diabetes mellitus, antibiotic and steroid use, and urinary tract disease. In most cases, candiduria is asymptomatic and follows a benign clinical course with antifungal therapy only required in ... Read more >>

Urol Clin North Am (The Urologic clinics of North America)
[2015, 42(4):473-483]

Cited: 6 times

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Oxidative stress and nephrolithiasis: a comparative pilot study evaluating the effect of pomegranate extract on stone risk factors and elevated oxidative stress levels of recurrent stone formers and controls.

Chad R Tracy, Jonathan R Henning, Mark R Newton, Michael Aviram, M Bridget Zimmerman,

Previous studies have linked oxidative stress and nephrolithiasis. Animal studies have demonstrated that pomegranate juice may play a role in preventing stone formation. We examined differences between recurrent stone formers (RSFs) and non-stone formers (NSFs) regarding oxidative stress and the effect of pomegranate administration on risk factors for nephrolithiasis. RSFs ... Read more >>

Urolithiasis (Urolithiasis)
[2014, 42(5):401-408]

Cited: 8 times

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