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Multi-Institutional Outcomes of Endoscopic Management of Stricture Recurrence after Bulbar Urethroplasty.

Sukumar S, Elliott SP, Myers JB, Voelzke BB, Smith TG 3rd, Carolan AMC, Maidaa M, Vanni AJ, Breyer BN, Erickson BA.

J Urol. 2018 Oct;200(4):837-842. doi: 10.1016/j.juro.2018.04.081. Epub 2018 May 3.


Medical Expulsive Therapy for Distal Ureteral Stones: The Verdict is In.

Dahm P, Sukumar S, Hollingsworth JM.

Eur Urol. 2017 Nov 23. pii: S0302-2838(17)30986-7. doi: 10.1016/j.eururo.2017.11.010. [Epub ahead of print] No abstract available.


Alpha blockers for treatment of ureteric stones: systematic review and meta-analysis.

Hollingsworth JM, Canales BK, Rogers MA, Sukumar S, Yan P, Kuntz GM, Dahm P.

BMJ. 2016 Dec 1;355:i6112. doi: 10.1136/bmj.i6112. Review.


Corrigendum: Inpatient hypospadias care: Trends and outcomes from the American nationwide inpatient sample.

Meyer C, Sukumar S, Sood A, Hanske J, Vetterlein M, Elder JS, Fisch M, Trinh QD, Friedman AA.

Korean J Urol. 2015 Sep;56(9):670. doi: 10.4111/kju.2015.56.9.670.


Inpatients hypospadias care: trends and outcomes from the American nationwide inpatient sample.

Meyer C, Sukumar S, Sood A, Hanske J, Vetterlein M, Elder JS, Fisch M, Trinh QD, Friedman AA.

Korean J Urol. 2015 Aug;56(8):594-600. doi: 10.4111/kju.2015.56.8.594. Epub 2015 Jul 24. Erratum in: Korean J Urol. 2015 Sep;56(9):670.


Burden of hospital admissions and utilization of hospice care in metastatic prostate cancer patients.

Sammon JD, McKay RR, Kim SP, Sood A, Sukumar S, Hayn MH, Hu JC, Kibel AS, Nguyen PL, Peabody JO, Saad F, Sun M, Varda B, Menon M, Choueiri TK, Trinh QD.

Urology. 2015 Feb;85(2):343-9. doi: 10.1016/j.urology.2014.09.053.


The burden of skeletal-related events in patients with prostate cancer and bone metastasis.

Roghmann F, Antczak C, McKay RR, Choueiri T, Hu JC, Kibel AS, Kim SP, Kowalczyk KJ, Menon M, Nguyen PL, Saad F, Sammon JD, Schmid M, Sukumar S, Sun M, Noldus J, Trinh QD.

Urol Oncol. 2015 Jan;33(1):17.e9-17.e18. doi: 10.1016/j.urolonc.2014.09.010. Epub 2014 Oct 30.


Racial disparities in operative outcomes after major cancer surgery in the United States.

Sukumar S, Ravi P, Sood A, Gervais MK, Hu JC, Kim SP, Menon M, Roghmann F, Sammon JD, Sun M, Trinh VQ, Trinh QD.

World J Surg. 2015 Mar;39(3):634-43. doi: 10.1007/s00268-014-2863-x.


Short-term perioperative outcomes of patients treated with radical cystectomy for bladder cancer included in the National Surgical Quality Improvement Program (NSQIP) database.

Gandaglia G, Varda B, Sood A, Pucheril D, Konijeti R, Sammon JD, Sukumar S, Menon M, Sun M, Chang SL, Montorsi F, Kibel AS, Trinh QD.

Can Urol Assoc J. 2014 Sep;8(9-10):E681-7. doi: 10.5489/cuaj.2069.


Mental health outcomes in elderly men with prostate cancer.

Ravi P, Karakiewicz PI, Roghmann F, Gandaglia G, Choueiri TK, Menon M, McKay RR, Nguyen PL, Sammon JD, Sukumar S, Varda B, Chang SL, Kibel AS, Sun M, Trinh QD.

Urol Oncol. 2014 Nov;32(8):1333-40. doi: 10.1016/j.urolonc.2014.05.005. Epub 2014 Aug 19.


Comparative effectiveness of robot-assisted and open radical prostatectomy in the postdissemination era.

Gandaglia G, Sammon JD, Chang SL, Choueiri TK, Hu JC, Karakiewicz PI, Kibel AS, Kim SP, Konijeti R, Montorsi F, Nguyen PL, Sukumar S, Menon M, Sun M, Trinh QD.

J Clin Oncol. 2014 May 10;32(14):1419-26. doi: 10.1200/JCO.2013.53.5096. Epub 2014 Apr 14.


Minimally invasive vs open pyeloplasty in children: the differential effect of procedure volume on operative outcomes.

Sukumar S, Djahangirian O, Sood A, Sammon JD, Varda B, Janosek-Albright K, Abd-El-Barr AE, Sun M, Trinh QD.

Urology. 2014 Jul;84(1):180-4. doi: 10.1016/j.urology.2014.02.002. Epub 2014 Apr 6.


Age-stratified distribution of metastatic sites in bladder cancer: A population-based analysis.

Bianchi M, Roghmann F, Becker A, Sukumar S, Briganti A, Menon M, Karakiewicz PI, Sun M, Noldus J, Trinh QD.

Can Urol Assoc J. 2014 Mar-Apr;8(3-4):E148-58. doi: 10.5489/cuaj.787.


Is there any evidence of a "July effect" in patients undergoing major cancer surgery?

Ravi P, Trinh VQ, Sun M, Sammon J, Sukumar S, Gervais MK, Shariat SF, Kim SP, Kowalczyk KJ, Hu JC, Menon M, Karakiewicz PI, Trinh QD.

Can J Surg. 2014 Apr;57(2):82-8.


Disparities in selective referral for cancer surgeries: implications for the current healthcare delivery system.

Sun M, Karakiewicz PI, Sammon JD, Sukumar S, Gervais MK, Nguyen PL, Choueiri TK, Menon M, Trinh QD.

BMJ Open. 2014 Mar 23;4(3):e003921. doi: 10.1136/bmjopen-2013-003921.


Morbidity and mortality after benign prostatic hyperplasia surgery: data from the American College of Surgeons national surgical quality improvement program.

Bhojani N, Gandaglia G, Sood A, Rai A, Pucheril D, Chang SL, Karakiewicz PI, Menon M, Olugbade K Jr, Ruhotina N, Sammon JD, Sukumar S, Sun M, Ghani KR, Schmid M, Varda B, Kibel AS, Zorn KC, Trinh QD.

J Endourol. 2014 Jul;28(7):831-40. doi: 10.1089/end.2013.0805. Epub 2014 Mar 12.


The health care burden of skeletal related events in patients with renal cell carcinoma and bone metastasis.

Antczak C, Trinh VQ, Sood A, Ravi P, Roghmann F, Trudeau V, Chang SL, Karakiewicz PI, Kibel AS, Krishna N, Nguyen PL, Saad F, Sammon JD, Sukumar S, Zorn KC, Sun M, Trinh QD.

J Urol. 2014 Jun;191(6):1678-84. doi: 10.1016/j.juro.2013.12.042. Epub 2013 Dec 30.


Correction of ureteropelvic junction obstruction in children: national trends and comparative effectiveness in operative outcomes.

Sukumar S, Roghmann F, Sood A, Abdo A, Menon M, Sammon JD, Sun M, Varda B, Trinh QD, Elder JS.

J Endourol. 2014 May;28(5):592-8. doi: 10.1089/end.2013.0618. Epub 2014 Feb 4.


Effect of metastatic site on emergency department disposition in men with metastatic prostate cancer.

Sammon JD, Kaczmarek BF, Ravi P, Sun M, Roghmann F, Sukumar S, Ghani K, Sharma P, Karakiewicz PI, Peabody JO, Elder JS, Menon M, Trinh QD.

Can J Urol. 2013 Dec;20(6):7008-14.


Venous thromboembolism after major cancer surgery: temporal trends and patterns of care.

Trinh VQ, Karakiewicz PI, Sammon J, Sun M, Sukumar S, Gervais MK, Shariat SF, Tian Z, Kim SP, Kowalczyk KJ, Hu JC, Menon M, Trinh QD.

JAMA Surg. 2014 Jan;149(1):43-9. doi: 10.1001/jamasurg.2013.3172.


Practice patterns and outcomes of open and minimally invasive partial nephrectomy since the introduction of robotic partial nephrectomy: results from the nationwide inpatient sample.

Ghani KR, Sukumar S, Sammon JD, Rogers CG, Trinh QD, Menon M.

J Urol. 2014 Apr;191(4):907-12. doi: 10.1016/j.juro.2013.10.099. Epub 2013 Oct 29.


Pediatric nephrectomy: incidence, indications and use of minimally invasive techniques.

Sammon JD, Zhu G, Sood A, Sukumar S, Kim SP, Sun M, Karakiewicz PI, Menon M, Trinh QD, Elder JS.

J Urol. 2014 Mar;191(3):764-70. doi: 10.1016/j.juro.2013.09.063. Epub 2013 Oct 3.


Predictors of admission in patients presenting to the emergency department with urinary tract infection.

Sammon JD, Sharma P, Rahbar H, Roghmann F, Ghani KR, Sukumar S, Karakiewicz PI, Peabody JO, Elder JS, Menon M, Sun M, Trinh QD.

World J Urol. 2014 Jun;32(3):813-9. doi: 10.1007/s00345-013-1167-3. Epub 2013 Sep 27.


Oncological outcomes after robot-assisted radical prostatectomy: long-term follow-up in 4803 patients.

Sukumar S, Rogers CG, Trinh QD, Sammon J, Sood A, Stricker H, Peabody JO, Menon M, Diaz-Insua M.

BJU Int. 2014 Dec;114(6):824-31. doi: 10.1111/bju.12404.


Radical cystectomy in the elderly: national trends and disparities in perioperative outcomes and quality of care.

Roghmann F, Sukumar S, Ravi P, Trinh VQ, Meskawi M, Ghani KR, Sammon JD, Friedman AA, Peabody JO, Menon M, Noldus J, Karakiewicz PI, Sun M, Trinh QD.

Urol Int. 2014;92(1):27-34. doi: 10.1159/000353091. Epub 2013 Sep 19.


Emergency department visits in the United States for upper urinary tract stones: trends in hospitalization and charges.

Ghani KR, Roghmann F, Sammon JD, Trudeau V, Sukumar S, Rahbar H, Kumar R, Karakiewicz PI, Peabody JO, Menon M, Sun M, Trinh QD.

J Urol. 2014 Jan;191(1):90-6. doi: 10.1016/j.juro.2013.07.098. Epub 2013 Aug 7.


Re: Surgeon variation in patient quality of life after radical prostatectomy: A. Hartz, T. He, S. Strope, D. R. Cutler, G. Andriole and C. Dechet J Urol 2013; 189: 1295-1301.

Abd-El-Barr AE, Sukumar S, Trinh QD, Roghmann F, Sun M.

J Urol. 2013 Oct;190(4):1441-2. doi: 10.1016/j.juro.2013.05.008. Epub 2013 Jul 22. No abstract available.


National trends in hospital-acquired preventable adverse events after major cancer surgery in the USA.

Sukumar S, Roghmann F, Trinh VQ, Sammon JD, Gervais MK, Tan HJ, Ravi P, Kim SP, Hu JC, Karakiewicz PI, Noldus J, Sun M, Menon M, Trinh QD.

BMJ Open. 2013 Jun 26;3(6). pii: e002843. doi: 10.1136/bmjopen-2013-002843.


Incidence and treatment patterns in males presenting with lower urinary tract symptoms to the emergency department in the United States.

Roghmann F, Ghani KR, Kowalczyk KJ, Bhojani N, Sammon JD, Gandaglia G, Trudeau V, Becker A, Sukumar S, Menon M, Zorn KC, Karakiewicz P, Sun M, Noldus J, Trinh QD.

J Urol. 2013 Nov;190(5):1798-804. doi: 10.1016/j.juro.2013.05.112. Epub 2013 Jun 11.


Incidence of priapism in emergency departments in the United States.

Roghmann F, Becker A, Sammon JD, Ouerghi M, Sun M, Sukumar S, Djahangirian O, Zorn KC, Ghani KR, Gandaglia G, Menon M, Karakiewicz P, Noldus J, Trinh QD.

J Urol. 2013 Oct;190(4):1275-80. doi: 10.1016/j.juro.2013.03.118. Epub 2013 Apr 9.


Health care-associated infections after major cancer surgery: temporal trends, patterns of care, and effect on mortality.

Sammon J, Trinh VQ, Ravi P, Sukumar S, Gervais MK, Shariat SF, Larouche A, Tian Z, Kim SP, Kowalczyk KJ, Hu JC, Menon M, Karakiewicz PI, Trinh QD, Sun M.

Cancer. 2013 Jun 15;119(12):2317-24. doi: 10.1002/cncr.28027. Epub 2013 Mar 19.


Comparison of robotic and laparoscopic ultrasound probes for robotic partial nephrectomy.

Kaczmarek BF, Sukumar S, Kumar RK, Desa N, Jost K, Diaz M, Menon M, Rogers CG.

J Endourol. 2013 Sep;27(9):1137-40. doi: 10.1089/end.2012.0528. Epub 2013 May 9.


Trends in surgery for upper urinary tract calculi in the USA using the Nationwide Inpatient Sample: 1999-2009.

Ghani KR, Sammon JD, Karakiewicz PI, Sun M, Bhojani N, Sukumar S, Peabody JO, Menon M, Trinh QD.

BJU Int. 2013 Jul;112(2):224-30. doi: 10.1111/bju.12059. Epub 2013 Mar 11.


Prostate cancer screening and incidence: a question of causality.

Sammon JD, Sukumar S, Trinh QD.

JAMA Intern Med. 2013 Mar 11;173(5):392-3. doi: 10.1001/jamainternmed.2013.2164. No abstract available.


The impact of hospital volume, residency, and fellowship training on perioperative outcomes after radical prostatectomy.

Trinh QD, Sun M, Kim SP, Sammon J, Kowalczyk KJ, Friedman AA, Sukumar S, Ravi P, Muhletaler F, Agarwal PK, Shariat SF, Hu JC, Menon M, Karakiewicz PI.

Urol Oncol. 2014 Jan;32(1):29.e13-20. doi: 10.1016/j.urolonc.2012.10.008. Epub 2013 Mar 1.


Trends in percutaneous nephrolithotomy use and outcomes in the United States.

Ghani KR, Sammon JD, Bhojani N, Karakiewicz PI, Sun M, Sukumar S, Littleton R, Peabody JO, Menon M, Trinh QD.

J Urol. 2013 Aug;190(2):558-64. doi: 10.1016/j.juro.2013.02.036. Epub 2013 Feb 19.


Is there a relationship between leapfrog volume thresholds and perioperative outcomes after radical cystectomy?

Sun M, Ravi P, Karakiewicz PI, Sukumar S, Sammon J, Bianchi M, Shariat SF, Jeong W, Ghani KR, Hansen J, Friedman A, Perrotte P, Peabody JO, Menon M, Trinh QD.

Urol Oncol. 2014 Jan;32(1):27.e7-13. doi: 10.1016/j.urolonc.2012.09.012. Epub 2013 Feb 10.


Effect of nodal metastases on cancer-specific mortality after cytoreductive nephrectomy.

Trinh QD, Sukumar S, Schmitges J, Bianchi M, Sun M, Shariat SF, Sammon JD, Jeldres C, Zorn KC, Perrotte P, Graefen M, Rogers CG, Peabody JO, Menon M, Karakiewicz PI.

Ann Surg Oncol. 2013 Jun;20(6):2096-102. doi: 10.1245/s10434-012-2806-4. Epub 2012 Dec 23.


Intraoperative finding of gross lymph node metastasis during robot-assisted prostatectomy.

Jeong W, Sukumar S, Petros F, Menon M, Peabody JO, Rogers CG.

J Robot Surg. 2012 Dec;6(4):329-32. doi: 10.1007/s11701-011-0316-1. Epub 2011 Sep 27.


Impact of academic affiliation on radical cystectomy outcomes in North America: A population-based study.

Bianchi M, Trinh QD, Sun M, Meskawi M, Schmitges J, Shariat SF, Briganti A, Tian Z, Jeldres C, Sukumar S, Peabody JO, Graefen M, Perrotte P, Menon M, Montorsi F, Karakiewicz PI.

Can Urol Assoc J. 2012 Aug;6(4):245-50. doi: 10.5489/cuaj.12032.


Robot-assisted versus open radical prostatectomy: the differential effect of regionalization, procedure volume and operative approach.

Sammon JD, Karakiewicz PI, Sun M, Sukumar S, Ravi P, Ghani KR, Bianchi M, Peabody JO, Shariat SF, Perrotte P, Hu JC, Menon M, Trinh QD.

J Urol. 2013 Apr;189(4):1289-94. doi: 10.1016/j.juro.2012.10.028. Epub 2012 Oct 22.


Temporal trends, practice patterns, and treatment outcomes for infected upper urinary tract stones in the United States.

Sammon JD, Ghani KR, Karakiewicz PI, Bhojani N, Ravi P, Sun M, Sukumar S, Trinh VQ, Kowalczyk KJ, Kim SP, Peabody JO, Menon M, Trinh QD.

Eur Urol. 2013 Jul;64(1):85-92. doi: 10.1016/j.eururo.2012.09.035. Epub 2012 Sep 25.


Predictors of immediate continence following robot-assisted radical prostatectomy.

Sammon JD, Sharma P, Trinh QD, Ghani KR, Sukumar S, Menon M.

J Endourol. 2013 Apr;27(4):442-6. doi: 10.1089/end.2012.0312. Epub 2012 Dec 5.


Robotic ultrasound probe for tumor identification in robotic partial nephrectomy: Initial series and outcomes.

Kaczmarek BF, Sukumar S, Petros F, Trinh QD, Mander N, Chen R, Menon M, Rogers CG.

Int J Urol. 2013 Feb;20(2):172-6. doi: 10.1111/j.1442-2042.2012.03127.x. Epub 2012 Aug 26.


The effect of gender on nephrectomy perioperative outcomes: a national survey.

Sammon J, Trinh QD, Sun M, Bianchi M, Schmitges J, Shariat SF, Ghani KR, Sukumar S, Jeldres C, Briganti A, Perrotte P, Rogers CG, Peabody JO, Montorsi F, Menon M, Karakiewicz PI.

Can J Urol. 2012 Aug;19(4):6337-44.


National trends and disparities in the use of minimally invasive adult pyeloplasty.

Sukumar S, Sun M, Karakiewicz PI, Friedman AA, Chun FK, Sammon J, Ghani KR, Ravi P, Bianchi M, Jeong W, Shariat SF, Hansen J, Peabody JO, Elder JS, Menon M, Trinh QD.

J Urol. 2012 Sep;188(3):913-8. doi: 10.1016/j.juro.2012.05.013. Epub 2012 Jul 20.


Adoption of robotic surgery: an analogy from urologic oncology.

Sukumar S, Sammon J, Sun M, Karakiewicz PI, Trinh QD.

J Clin Oncol. 2012 Aug 10;30(23):2931-2; author reply 2932-3. doi: 10.1200/JCO.2012.42.4895. Epub 2012 Jul 2. No abstract available.


Robotic partial nephrectomy using robotic bulldog clamps.

Sukumar S, Petros F, Mander N, Chen R, Menon M, Rogers CG.

JSLS. 2011 Oct-Dec;15(4):520-6. doi: 10.4293/108680811X13176785204274.


Prospective multi-center study of oncologic outcomes of robot-assisted partial nephrectomy for pT1 renal cell carcinoma.

Kyllo RL, Tanagho YS, Kaouk JH, Stifelman MD, Rogers CG, Hillyer SP, Sukumar SS, Nepple KG, Bhayani SB.

BMC Urol. 2012 Apr 30;12:11. doi: 10.1186/1471-2490-12-11.


Risk factors for biochemical recurrence following radical perineal prostatectomy in a large contemporary series: a detailed assessment of margin extent and location.

Sammon JD, Trinh QD, Sukumar S, Ravi P, Friedman A, Sun M, Schmitges J, Jeldres C, Jeong W, Mander N, Peabody JO, Karakiewicz PI, Harris M.

Urol Oncol. 2013 Nov;31(8):1470-6. doi: 10.1016/j.urolonc.2012.03.013. Epub 2012 Apr 24.


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