Full Text Journal Articles by
Author Da David Jiang

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Pathologic Downstaging and Survival Outcomes Associated with Neoadjuvant Chemotherapy for Variant Histology Muscle Invasive Bladder Cancer.

Nicholas H Chakiryan, Da David Jiang, Kyle A Gillis, Elizabeth Green, Ali Hajiran, Lee Hugar, Logan Zemp, Jingsong Zhang, Rohit Jain, Jad Chahoud, Michael Poch, Brandon J Manley, Roger Li, Wade Sexton, Scott M Gilbert,

<h4>Purpose</h4>Patients with muscle invasive bladder cancer (MIBC) of variant histology have a poor prognosis. It is unclear if neoadjuvant chemotherapy prior to radical cystectomy is associated with pathologic downstaging or improved overall survival (OS) for patients with variant histology. Our objective was to assess for associations between receipt of neoadjuvant ... Read more >>

J Urol (The Journal of urology)
[2021, :101097JU0000000000001855]

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Real-World Survival Outcomes Associated With First-Line Immunotherapy, Targeted Therapy, and Combination Therapy for Metastatic Clear Cell Renal Cell Carcinoma.

Nicholas H Chakiryan, Da David Jiang, Kyle A Gillis, Elizabeth Green, Ali Hajiran, Lee Hugar, Logan Zemp, Jingsong Zhang, Rohit K Jain, Jad Chahoud, Philippe E Spiess, Wade Sexton, Scott M Gilbert, Brandon J Manley,

<h4>Importance</h4>Clinical trials have shown an overall survival (OS) benefit associated with first-line immunotherapy (IT) and combination targeted therapy (TT) and IT regimens compared with TT among patients with metastatic clear cell renal cell carcinoma (RCC). Generalizability of these findings in a real-world cohort outside of a clinical trial setting is ... Read more >>

JAMA Netw Open (JAMA network open)
[2021, 4(5):e2111329]

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Misaligned Incentives in Benign Prostatic Enlargement Surgery: More Complex and Efficacious Procedures Are Earning Fewer Relative Value Units.

Da David Jiang, Mitchell Hayes, Kyle A Gillis, Ruslan Korets, Andrew A Wagner, Jason C Hedges, Nicholas H Chakiryan,

<b><i>Background:</i></b> Relative value units (RVUs) are the measure of value used in US Medicare reimbursement. Medicare determines physician work RVUs (wRVUs) from the Relative Value Update Committee (RUC) for a procedure based on operative time, technical skill and effort, mental effort and judgment, and stress. In theory, work RVUs should ... Read more >>

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

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Survival and renal function after liver transplantation alone in patients meeting the new United Network for Organ Sharing simultaneous liver-kidney criteria.

Da David Jiang, Kayvan Roayaie, David Woodland, Susan Orloff, David Scott,

In 2017, United Network for Organ Sharing (UNOS) implemented a simultaneous liver-kidney transplant (SLK) allocation policy. Our institution uses a more restrictive criteria for SLK; thus, we have a group of patients that would have qualified for SLK under the new allocation policy but received liver transplantation alone (LTA). We ... Read more >>

Clin Transplant (Clinical transplantation)
[2020, 34(10):e14020]

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Relative value units do not adequately account for operative time in pediatric urology.

Da David Jiang, Nicholas H Chakiryan, Kyle A Gillis, Ann Martinez Acevedo, Yiyi Chen, J Christopher Austin, Casey A Seideman,

<h4>Background</h4>Relative value units (RVUs) are the measure of value used in United States Medicare and Medicaid reimbursement. The Relative Update Committee (RUC) determines physician work RVU (wRVUs) based on operative time, technical skill and effort, mental effort and judgment, and stress. The primary aim of this study was to assess ... Read more >>

J Pediatr Surg (Journal of pediatric surgery)
[2021, 56(5):883-887]

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RUC Operative Time Estimates are Inaccurate, Resulting in Decreased Work RVU Assignments for Longer Urologic Procedures.

Nicholas H Chakiryan, Da David Jiang, Kyle A Gillis, Yiyi Chen, Ann Martinez Acevedo, Kamran P Sajadi,

OBJECTIVE:To assess whether inaccurate operative time estimates utilized by the Relative Value Update Committee (RUC) contribute to the undervaluation of longer urologic procedures. METHODS:The National Surgical Quality Improvement Program (NSQIP) and Centers for Medicare and Medicaid Services (CMS) data sets were reviewed from 2015 to 2017. NSQIP operative time is ... Read more >>

Urology (Urology)
[2020, 142:94-98]

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An institutional assessment of sperm cryospreservation and fertility counselling in pubertal male cancer survivors.

Akash Kapadia, Poone S Shoureshi, Jasper Bash, Da David Jiang, Susan Lindemulder, Jason Hedges, Casey A Seideman,

<h4>Introduction</h4>Improved survivorship after treatment of pediatric malignancies has dramatically increased, while pre-treatment fertility preservation in this population has not kept pace. New guidelines emphasize fertility preservation in young adolescents, but the impact of these guidelines is unknown.<h4>Objectives</h4>We sought to evaluate the rate of fertility preservation among at-risk adolescents diagnosed with ... Read more >>

J Pediatr Urol (Journal of pediatric urology)
[2020, 16(4):474.e1-474.e4]

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Work relative value units do not account for complexity and operative time in hypospadias surgery.

Da David Jiang, Kyle A Gillis, Nicholas H Chakiryan, Ann Martinez Acevedo, J Christopher Austin, Casey A Seideman,

INTRODUCTION:Relative value units (RVU) are the measure of value used in United States Medicare and Medicaid reimbursement. The Relative Update Committee (RUC) determine physician work RVU (wRVU) based on operative time, technical skill and effort, mental effort and judgement, and stress. In theory, wRVU should account for the complexity and ... Read more >>

J Pediatr Urol (Journal of pediatric urology)
[2020, 16(4):459.e1-459.e5]

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Perioperative complications within 30 days of hypospadias surgery: Results from NSQIP-Pediatrics.

Da David Jiang, Nicholas H Chakiryan, Kyle A Gillis, Ann Martinez Acevedo, J Christopher Austin, Casey A Seideman,

<h4>Introduction</h4>There are no large multi-institutional studies reporting on perioperative complications of hypospadias repairs. We sought to determine perioperative complications of hypospadias repairs from the National Surgical Quality Improvement Program Pediatrics (NSQIP-P) to aid in patient counseling.<h4>Study design</h4>This cohort study from 2012 to 2017 was conducted using NSQIP-P database. Pediatric patients ... Read more >>

J Pediatr Urol (Journal of pediatric urology)
[2020, 16(3):316.e1-316.e7]

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Relative Value Units do Not Adequately Account for Operative Time of Urological Surgery.

Nicholas H Chakiryan, Da David Jiang, Kyle A Gillis, Yiyi Chen, Ann Martinez Acevedo, Kamran P Sajadi,

PURPOSE:Physician work relative value units are determined based on operative time, technical skill, mental effort and stress. In theory, work relative value units should account for the operative time involved in a procedure, resulting in similar work relative value units per unit time for short and long procedures. We assessed ... Read more >>

J Urol (The Journal of urology)
[2020, 203(5):1003-1007]

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AUTHOR REPLY.

Da David Jiang, Erica Swenson, Malachi Mason, Kevin R Turner, Daniel D Dugi, Jason C Hedges, Sarah L Hecht,

Urology (Urology)
[2019, 132:121-122]

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Effects of Estrogen on Spermatogenesis in Transgender Women.

Da David Jiang, Erica Swenson, Malachi Mason, Kevin R Turner, Daniel D Dugi, Jason C Hedges, Sarah L Hecht,

<h4>Objective</h4>To characterize spermatogenesis in the estrogenized transgender patient.<h4>Materials and methods</h4>This is a retrospective, single-center, cross-sectional study. Seventy-two transgender women underwent gender-affirming orchiectomy between May 2015 and January 2017. All were on long-term (>1 year) cross-sex hormonal therapy prior to orchiectomy. Patient data were obtained via chart review. Histologic analysis was ... Read more >>

Urology (Urology)
[2019, 132:117-122]

Cited: 6 times

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Implementation of a Pelvic Floor Physical Therapy Program for Transgender Women Undergoing Gender-Affirming Vaginoplasty.

Da David Jiang, Sandra Gallagher, Laura Burchill, Jens Berli, Daniel Dugi,

<h4>Objective</h4>To describe the incidence of pelvic floor dysfunction in transgender women undergoing gender-affirming vaginoplasty and outcomes in a program providing pelvic floor physical therapy (PT).<h4>Methods</h4>We conducted a retrospective, single-institution study on vaginoplasty patients between May 1, 2016, and February 28, 2018; all were referred for pelvic floor PT. We reviewed ... Read more >>

Obstet Gynecol (Obstetrics and gynecology)
[2019, 133(5):1003-1011]

Cited: 1 time

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