7 results on '"Shawn Marhamati"'
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2. Retzius-sparing Robot-assisted Radical Prostatectomy Leads to Durable Improvement in Urinary Function and Quality of Life Versus Standard Robot-assisted Radical Prostatectomy Without Compromise on Oncologic Efficacy: Single-surgeon Series and Step-by-step Guide
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Meghan Davis, Harry Lee, Filipe L F Carvalho, Keith J. Kowalczyk, Jim C. Hu, Jillian Egan, Ryan A. Hankins, John O’Neill, John H. Lynch, and Shawn Marhamati
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Male ,Biochemical recurrence ,medicine.medical_specialty ,Urology ,medicine.medical_treatment ,030232 urology & nephrology ,Urinary incontinence ,03 medical and health sciences ,Prostate cancer ,0302 clinical medicine ,Robotic Surgical Procedures ,Quality of life ,Humans ,Medicine ,Retrospective Studies ,Prostatectomy ,Surgeons ,business.industry ,Proportional hazards model ,Prostate ,Margins of Excision ,Prostatic Neoplasms ,Robotics ,Perioperative ,medicine.disease ,Treatment Outcome ,Urinary Incontinence ,030220 oncology & carcinogenesis ,Quality of Life ,medicine.symptom ,business ,Sexual function - Abstract
Retzius-sparing robot-assisted radical prostatectomy (RS-RARP) has been shown to improve continence. However, questions remain regarding feasibility and generalizability of technique and outcomes.To compare the outcomes of 140 consecutive standard robot-assisted radical prostatectomy (S-RARP) versus RS-RARP.A total of 70 S-RARPs were performed followed by 70 RS-RARPs. Demographic, pathologic, and functional outcomes were compared preoperatively and through 12 mo. Expanded Prostate Cancer Index Composite for Clinical Practice (EPIC-CP) was used to compare functional outcomes. Logistic and linear regression analyses were utilized to analyze variables associated with EPIC-CP urinary incontinence and overall quality of life (QOL) scores, and oncologic outcomes. Cox regression analysis was used to analyze incontinence at 12 mo.RS-RARP versus S-RARP.Patient and tumor characteristics (age, body mass index, prostate-specific antigen, Charlson Comorbidity Index, Gleason group, clinical stage, and Prostate Imaging Reporting and Data System score), perioperative outcomes (console time, estimated blood loss, postoperative complications, and length of stay), oncologic outcomes (positive surgical margin [PSM], and biochemical recurrence), overall and 12-mo continence rates (zero pads and zero to one safety pad), time to continence, potency (erection sufficient for sexual activity), EPIC-CP urinary incontinence, sexual function, and overall QOL scores.Median follow-up for S-RARP versus RS-RARP was 46.3 versus 12.3 mo. RS-RARP versus S-RARP had improved overall continence rates at total follow-up (95.7% vs 85.7%, p = 0.042) and 12-mo follow-up (97.6% vs 81.4%, p = 0.002), and faster return to continence (zero to one safety pad, 44 vs 131 d, p 0.001). RS-RARP EPIC-CP urinary incontinence and overall QOL scores remained significantly better at 12 mo. There were no differences in overall PSM rates, although RS-RARP had lower rates of nonfocal PSMs. There were no differences in sexual function. In multivariate analysis, RS-RARP was significantly associated with improved 12-mo EPIC-CP urinary incontinence and improved QOL scores, but was not associated with PSM or biochemical recurrence. Limitations include retrospective study design and unequal follow-up; however, significantly better RS-RARP continence at 12 mo is striking despite fewer patients attaining 12-mo follow-up.RS-RARP significantly improves early and long-term continence without compromising oncologic outcomes and leads to overall improved QOL.Retzius-sparing robot-assisted radical prostatectomy is an emerging technique for robotic radical prostatectomy that improves urinary function and quality of life without compromising cancer control.
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- 2021
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3. Retzius-Sparing Robot-Assisted Robotic Prostatectomy
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Antonio Galfano, Shawn Marhamati, Keith J. Kowalczyk, Jillian Egan, and Meghan Davis
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medicine.medical_specialty ,integumentary system ,Prostatectomy ,business.industry ,Robotic assisted ,Urology ,medicine.medical_treatment ,General surgery ,technology, industry, and agriculture ,030232 urology & nephrology ,medicine.disease ,Robotic assisted surgery ,03 medical and health sciences ,Prostate cancer ,0302 clinical medicine ,030220 oncology & carcinogenesis ,medicine ,Sexual function ,business ,Robotic prostatectomy - Abstract
Radical prostatectomy has undergone many adaptations since its inception, including the Retzius-sparing robotic-assisted radical prostatectomy approach. In this article, we review the origins of radical prostatectomy, the theoretic basis for Retzius-sparing robotic-assisted radical prostatectomy, and outline the key steps of the procedure. To date, there have been 9 studies comparing the outcomes of Retzius-sparing robotic-assisted radical prostatectomy with standard robotic-assisted radical prostatectomy, which have demonstrated improved continence outcomes for Retzius sparing robotic assisted radical prostatectomy within the first year and equivalent oncologic efficacy out to 18 months. Further research is needed to evaluate sexual function outcomes as well as long-term oncologic outcomes.
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- 2021
- Full Text
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4. Retzius-Sparing Robot-Assisted Robotic Prostatectomy: Past, Present, and Future
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Meghan, Davis, Jillian, Egan, Shawn, Marhamati, Antonio, Galfano, and Keith J, Kowalczyk
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Male ,Prostatectomy ,Urinary Incontinence ,Robotic Surgical Procedures ,Prostate ,Humans ,Prostatic Neoplasms ,Fascia ,History, 20th Century ,History, 21st Century ,Fasciotomy ,Forecasting - Abstract
Radical prostatectomy has undergone many adaptations since its inception, including the Retzius-sparing robotic-assisted radical prostatectomy approach. In this article, we review the origins of radical prostatectomy, the theoretic basis for Retzius-sparing robotic-assisted radical prostatectomy, and outline the key steps of the procedure. To date, there have been 9 studies comparing the outcomes of Retzius-sparing robotic-assisted radical prostatectomy with standard robotic-assisted radical prostatectomy, which have demonstrated improved continence outcomes for Retzius sparing robotic assisted radical prostatectomy within the first year and equivalent oncologic efficacy out to 18 months. Further research is needed to evaluate sexual function outcomes as well as long-term oncologic outcomes.
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- 2020
5. V08-08 A NOVEL CASE COMBINING PSMA BASED (18)F-DCFPYL PET/CT AND MRI/ULTRASOUND FUSION GUIDED BIOPSY TO ASSESS LOCAL RECURRENCE OF PROSTATE CANCER
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Gustavo Pena, Baris Turkbey, Peter A. Pinto, Sandeep Gurram, Shawn Marhamati, Peter L. Choyke, and Bradford J. Wood
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PET-CT ,medicine.medical_specialty ,Prostate cancer ,business.industry ,Urology ,fungi ,Medicine ,MRI Ultrasound Fusion Guided Biopsy ,Radiology ,Positive Surgical Margin ,business ,medicine.disease - Abstract
INTRODUCTION AND OBJECTIVES:11-31% of radical prostatectomies (RP) are associated with positive surgical margins (PSM) depending on approach and pre-operative risk. [1] Differentiating residual nor...
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- 2019
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6. PD47-05 USING MULTIPARAMETRIC MAGNETIC RESONANCE IMAGING AND TARGETED BIOPSY TO RULE OUT SEMINAL VESICLE INVASION IN PROSTATE CANCER
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Clayton Smith, Peter A. Pinto, Stephanie Harmon, Marcin Czarniecki, Sherif Mehralivand, Vladimir Valera Romero, Maria Merino, Jonathan Bloom, Shawn Marhamati, Kareem Rayn, Graham R. Hale, Samuel Gold, Vik Sabarwal, and Baris Turkbey
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Prostate cancer ,Pathology ,medicine.medical_specialty ,business.industry ,Urology ,medicine ,medicine.disease ,business ,Targeted biopsy ,Multiparametric Magnetic Resonance Imaging ,Seminal vesicle invasion - Published
- 2018
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7. mpMRI preoperative staging in men treated with antiandrogen and androgen deprivation therapy before robotic prostatectomy
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Baris Turkbey, Peter A. Pinto, Graham R. Hale, Jonathan Bloom, Shawn Marhamati, Marijo Bilusic, James L. Gulley, William L. Dahut, David J. VanderWeele, Kareem Rayn, Samuel Gold, Fatima Karzai, Stephanie Harmon, Sherif Mehralivand, Peter L. Choyke, Maria J. Merino, and Ravi A. Madan
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Male ,medicine.medical_specialty ,Antineoplastic Agents, Hormonal ,Urology ,medicine.medical_treatment ,030232 urology & nephrology ,Article ,Androgen deprivation therapy ,03 medical and health sciences ,Prostate cancer ,chemistry.chemical_compound ,0302 clinical medicine ,Robotic Surgical Procedures ,Prostate ,Nitriles ,Phenylthiohydantoin ,medicine ,Humans ,Enzalutamide ,Multiparametric Magnetic Resonance Imaging ,Antiandrogen Therapy ,Stage (cooking) ,Neoadjuvant therapy ,Aged ,Neoplasm Staging ,Prostatectomy ,business.industry ,Prostatic Neoplasms ,Androgen Antagonists ,Middle Aged ,medicine.disease ,medicine.anatomical_structure ,Oncology ,chemistry ,030220 oncology & carcinogenesis ,Benzamides ,Preoperative Period ,Goserelin ,Radiology ,business - Abstract
Introduction Using multiparametric magnetic resonance imaging (mpMRI), we sought to preoperatively characterize prostate cancer (PCa) in the setting of antiandrogen plus androgen deprivation therapy (AA-ADT) prior to robotic-assisted radical prostatectomy (RARP). We present our preliminary findings regarding mpMRI depiction of changes of disease staging features and lesion appearance in treated prostate. Methods Prior to RARP, men received 6 months of enzalutamide and goserelin. mpMRI consisting of T2 weighted, b = 2,000 diffusion weighted imaging, apparent diffusion coefficient mapping, and dynamic contrast enhancement sequences was acquired before and after neoadjuvant therapy. Custom MRI-based prostate molds were printed to directly compare mpMRI findings to H&E whole-mount pathology as part of a phase II clinical trial (NCT02430480). Results Twenty men underwent imaging and RARP after a regimen of AA-ADT. Positive predictive values for post-AA-ADT mpMRI diagnosis of extraprostatic extension, seminal vesicle invasion, organ-confined disease, and biopsy-confirmed PCa lesions were 71%, 80%, 80%, and 85%, respectively. Post-treatment mpMRI correctly staged disease in 15/20 (75%) cases with 17/20 (85%) correctly identified as organ-confined or not. Of those incorrectly staged, 2 were falsely positive for higher stage features and 1 was falsely negative. Post-AA-ADT T2 weighted sequences best depicted presence of PCa lesions as compared to diffusion weighted imaging and dynamic contrast enhancement sequences. Conclusion mpMRI proved reliable in detecting lesion changes after antiandrogen therapy corresponding to PCa pathology. Therefore, mpMRI of treated prostates may be helpful for assessing men for surgical planning and staging.
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- 2019
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