Publications by authors named "Hooman Djaladat"

Purpose: Radical nephroureterectomy (RNU) for upper tract urothelial carcinoma (UTUC) in solitary kidney patients is a rare and underreported scenario. This study aims to compare the outcomes of UTUC solitary kidney patients becoming anephric after RNU to those of patients undergoing kidney-sparing surgery (KSS).

Methods: Data from patients with a solitary kidney were retrieved from the ROBUUST 2.

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Benign metastasizing leiomyoma (BML) is thought to arise from either coelomic metaplasia of mesenchymal tissue or peritoneal seeding of uterine fibroid tissue, though its exact etiology is unknown. Herein, we present a 44-year-old Hispanic female with BML identified in the retroperitoneum in the setting of clear cell renal carcinoma. Routine follow-up computed tomography scan, 18 months after a robotic left partial nephrectomy for stage 1 renal tumor, revealed retroperitoneal (para-aortic) adenopathy.

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Introduction & Objectives: It is currently recommended to perform open radical nephroureterectomy (oRNU) with bladder cuff excision in patients with locally advanced (cT3-4 or cN1-2) upper tract urothelial carcinoma (laUTUC). We tested the hypothesis that bladder recurrence-free survival (BRFS), metastasis-free survival (MFS), cancer-specific survival (CSS) and overall survival (OS) are not influenced by the surgical approach in patients with laUTUC using a large multicenter series.

Material & Methods: This was a multicenter retrospective cohort study including 361 patients with preoperative cT3-4 cM0 or cN1-2 cM0 laUTUC treated with open or minimally invasive RNU from 1999 to 2019 at 21 academic centers in Europe, Asia, and the United States.

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: The impact of adjuvant immunotherapy (IO) on the prognosis of patients with upper tract urothelial carcinoma (UTUC) remains unclear. This study examines the association of adjuvant IO with oncologic outcomes in patients with high-risk UTUC. : This retrospective study reviewed patients with high-risk UTUC treated with adjuvant IO using the ROBotic surgery for Upper tract Urothelial cancer STudy (ROBUUST) database.

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Objective: Radical nephroureterectomy (RNU) is considered the standard of care for patients with high-risk upper tract urothelial carcinoma. Current literature reveals a deficit in direct comparative studies evaluating the efficacy of different chemotherapeutic agents administered in single postoperative instillation following RNU. The primary aim of this study was to compare the bladder recurrence (BR) rates between patients receiving a single instillation of mitomycin C (MMC) versus gemcitabine (Gem) after RNU.

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Upper tract urothelial carcinoma (UTUC) is a rare malignancy, representing only 5-10% of urothelial carcinoma. The mainstay of treatment for high-risk patients is radical nephroureterectomy. Given the aggressive behavior of this disease, additional treatments could be required perioperatively in terms of chemotherapy (CHT), either in a neoadjuvant or adjuvant setting.

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Objectives: We aim to compare salvage robotic radical prostatectomy (sRRP) for recurrent prostate cancer (PCa) after primary radiation (RT) versus focal therapy (FT).

Materials And Methods: Patients who underwent sRRP following primary local therapy for PCa were identified. Perioperative findings and functional/oncologic outcomes were compared in RT versus FT groups.

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Introduction: The efficacy of combined neoadjuvant and adjuvant therapy (CNAT) in upper tract urothelial carcinoma (UTUC) remains unclear despite its demonstrated potential in bladder urothelial carcinoma. High-risk features- clinical stage ≥ T3, node-positive disease, multifocality, high-grade pathology, hydronephrosis, and large tumor size - are associated with poor prognosis in UTUC. We investigated the oncological outcomes of CNAT versus adjuvant therapy (AT) alone in high-risk UTUC patients.

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Background: The ability to predict muscle invasion in the final pathology of upper tract urothelial carcinoma (UTUC) patients after radical nephroureterectomy (RNU) potentially influences the selection of the most appropriate treatment modality. The present study aims to develop a model predicting muscle-invasive status in high-risk UTUC.

Methods: The ROBUUST (RObotic surgery for Upper tract Urothelial cancer - UTUC - STudy) 2.

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Purpose: To evaluate survival outcomes and recurrence patterns by pathologic nodal status in upper tract urothelial carcinoma (UTUC) patients receiving neoadjuvant chemotherapy (NAC) prior to radical nephroureterectomy (RNU) and lymph node dissection (LND).

Materials And Methods: Using the international ROBUUST 2.0 database, a retrospective analysis of UTUC patients who underwent robotic/laparoscopic RNU+LND±NAC was performed.

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To report the outcomes of minimally invasive (MIS) nephrectomy following immune checkpoint inhibitor (ICI) therapy. This multicenter retrospective cohort study included consecutive patients who underwent nephrectomy following ICI therapy at five high-volume US academic centers between 2015 and 2023. Baseline clinical features and perioperative findings were recorded.

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Background: The impact of cumulative smoking exposure (CSE) on oncologic outcomes for upper tract urothelial carcinoma (UTUC) remains understudied. We examined the effect of this factor on oncologic outcomes in UTUC patients undergoing radical nephroureterectomy utilizing a large contemporary multicenter, multinational cohort.

Methods: Multicenter review of 1,730 patients across 17 institutions.

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Article Synopsis
  • This study aimed to analyze how common surgically induced chronic kidney disease (CKD-S) is in patients with upper tract urothelial carcinoma (UTUC) after they undergo radical nephroureterectomy (RNU), focusing on survival outcomes.* -
  • Researchers looked at data from 1,862 patients and found that 34.7% developed CKD-S3a and 39.6% developed CKD-S3b after surgery, with older age, lower preoperative kidney function, and certain chemotherapy treatments linked to higher risks of developing CKD-S3b.* -
  • The study revealed that while CKD-S3b patients had worse overall survival rates (59% over 5 years), CK
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Objectives: To reassess the role of primary retroperitoneal lymph node dissection (RPLND) in patients with marker-negative non-seminomatous germ cell tumour (NSGCT) clinical stage (CS) 2a, to explore results in patients with CS 2b and to evaluate surgical methods, recurrence, and adjuvant chemotherapy indications.

Materials And Methods: Data from 17 institutions were collected, comprising 305 men who underwent primary RPLND for CS 2 NSGCT. Regression analyses were conducted to predict histology in the RPLND specimen and disease-free survival (DFS).

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Background And Objective: The feasibility and safety of a robotic approach for postchemotherapy retroperitoneal lymph node dissection (PC-RPLND) in testicular cancer have been demonstrated, but data on long-term oncological outcomes of this procedure are limited. Our aim was to evaluate oncological outcomes following robotic PC-RPLND in this setting.

Methods: This retrospective cohort study included consecutive patients with testicular cancer treated with robotic PC-RPLND at 11 academic centers worldwide between 2011 and 2023.

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Article Synopsis
  • * The survey had a 28.6% completion rate with 201 responses, revealing that while about half of the institutions using SP platforms have done so for over 2 years, structured training is limited, leading to concerns about hands-on experience and the learning curve associated with SP procedures.
  • * Despite recognizing the clinical benefits of SP surgery, many trainees do not view proficiency in it as essential for career advancement; however, predictors of future SP implementation include academic aspirations and the availability of SP platforms
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Article Synopsis
  • The study investigates the effects of neoadjuvant and adjuvant chemotherapy on survival rates in patients with Upper tract urothelial carcinoma undergoing Nephroureterectomy, using data from a multicenter registry.
  • A total of 1,994 patients were analyzed, revealing that neoadjuvant chemotherapy notably improved cancer-specific and overall survival, especially in patients with advanced tumors or positive nodes.
  • The results suggest a significant survival benefit from neoadjuvant chemotherapy, indicating a need for further research to explore its impact in this patient population.
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Objective: Discrepancies in survival outcomes of various genitourinary tract malignancies have been documented across different racial and ethnic groups. Here we sought to examine long-term survival outcomes of patients with upper tract urothelial carcinoma (UTUC) following radical nephroureterectomy (RNU) when stratified by race.

Methods: A multicenter retrospective analysis using the ROBUUST (ROBotic surgery for Upper tract Urothelial cancer Study) registry identified patients undergoing RNU for UTUC between 2015 and 2022 at 12 centers across the United States, Europe, and Asia.

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Purpose: A midline extraperitoneal approach for retroperitoneal lymph node dissection (EP-RPLND) has been associated with decreased morbidity compared to the transperitoneal approach. We aimed to review our 11-year experience in patients with germ cell tumors (GCTs) who underwent EP-RPLND at a single institution.

Materials And Methods: All patients with GCT who underwent EP-RPLND between 2010 and 2021 were reviewed.

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