1.Treatment of Oligometastatic Hormone-Sensitive Prostate Cancer: A Comprehensive Review.
Kyo Chul KOO ; Prokar DASGUPTA
Yonsei Medical Journal 2018;59(5):567-579
With advancements in diagnostic techniques, including molecular and clinical imaging, that directly target cancer cells, oligometastatic prostate cancer (PCa) is being diagnosed in patients who were, in the past, considered to have localized disease. With accumulating evidence, there has been a paradigm shift in considering aggressive treatments targeted at both the primary tumor and metastatic lesions in an aim to avoid and delay the need for palliative treatments and, ultimately, to achieve survival benefits. However, many questions still remain unanswered regarding the understanding of oligometastatic PCa, from its definition to optimal treatment strategies for each individual. Limited retrospective studies have suggested that interventions, including local and/or metastasis-directed therapy using surgery and radiation therapy (RT), can improve survival outcomes with minimal risk of adverse effects. Such treatments have been shown to decrease the risks of subsequent palliative interventions and to delay the start of androgen-deprivation therapy. Nevertheless, available data are insufficient to draw a reliable conclusion regarding their effect on quality of life measures and overall survival. This comprehensive review overviews data from contemporary literature that have investigated treatments, including surgery and RT, for patients with oligometastatic PCa, namely pelvic lymph node positive disease and limited distant metastases, and summarizes ongoing trials that are evaluating the feasibility of aggressive multimodal treatments.
Combined Modality Therapy
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Humans
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Lymph Nodes
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Neoplasm Metastasis
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Palliative Care
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Passive Cutaneous Anaphylaxis
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Prostate*
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Prostatectomy
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Prostatic Neoplasms*
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Quality of Life
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Radiotherapy
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Retrospective Studies
2.The current status of robot-assisted radical prostatectomy.
Prokar DASGUPTA ; Roger S KIRBY
Asian Journal of Andrology 2009;11(1):90-93
Robot-assisted radical prostatectomy (RARP) is a rapidly evolving technique for the treatment of localized prostate cancer. In the United States, over 65% of radical prostatectomies are robot-assisted, although the acceptance of this technology in Europe and the rest of the world has been somewhat slower. This article reviews the current literature on RARP with regard to oncological, continence and potency outcomes-the so-called 'trifecta'. Preliminary data appear to show an advantage of RARP over open prostatectomy, with reduced blood loss, decreased pain, early mobilization, shorter hospital stay and lower margin rates. Most studies show good postoperative continence and potency with RARP; however, this needs to be viewed in the context of the paucity of randomized data available in the literature. There is no definitive evidence to show an advantage over standard laparoscopy, but the fact that this technique has reached parity with laparoscopy within 5 years is encouraging. Finally, evolving techniques of single-port robotic prostatectomy, laser-guided robotics, catheter-free prostatectomy and image-guided robotics are discussed.
Erectile Dysfunction
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etiology
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Humans
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Male
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Prostatectomy
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adverse effects
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instrumentation
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methods
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Prostatic Neoplasms
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surgery
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Quality of Life
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Robotics
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methods
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Surgery, Computer-Assisted
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instrumentation
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methods
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Treatment Outcome
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Urinary Incontinence
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etiology
3.Competitive Inoculation as an Effective Prophylaxis Against Recurrent Urinary Tract Infections: A Systematic Review
Quentin MAK ; Julian GREIG ; Kamran AHMED ; Shamim KHAN ; Prokar DASGUPTA ; Sachin MALDE ; Nicholas RAISON
International Neurourology Journal 2023;27(2):79-87
Urinary tract infection (UTI) is a common condition defined as the presence of bacteria within the urine above a certain threshold (usually >100,000 m/L). The lifetime risk in women is estimated to be 50%, of whom 25% will develop recurrence within 6 months. Unfortunately, the use of antibiotics to treat and manage recurrent UTI (rUTI) is a growing problem, due to the burden of growing antibiotic resistance on public health. As such, new approaches to manage rUTI are being investigated and developed. Competitive inoculation via instillation of Escherichia coli 83972 or HU2117 in the bladder is a new prophylactic non-antimicrobial therapy for rUTIs. It utilizes the principle of the protective nature of asymptomatic bacteriuria to prevent recurrence of symptomatic UTIs. However, the effectiveness and safety of this technique remains unclear. This systematic review examined the current outcomes data on competitive inoculation as an effective and safe treatment for rUTI prophylaxis. Based on a limited number of studies, current evidence suggests that competitive inoculation is an effective and safe prophylactic measure against UTIs in a select group of patients with incomplete bladder emptying. However, administration of the technology is both resource and time intensive, and there is strong data demonstrating low successful colonisation rates. Competitive inoculation is an alternative to antibiotics only to rUTI patients with incomplete bladder emptying. There is no evidence to suggest that the technology would be suitable for other subsets of rUTI patients. Further randomized controlled trials should be conducted to improve the evidence base before drawing conclusions for clinical practice, and ideas to improve colonisation rates and simplify the administration process should be explored.
4.International multi-center study on clinical efficiency of robot-assisted laparoscopic partial nephrectomy in the treatment of clinical T2 renal tumors
Fei GUO ; Chao ZHANG ; Fubo WANG ; Linhui WANG ; Qing YANG ; Huamao YE ; Chen LYU ; Chengwu XIAO ; Yang WANG ; Simone GIUSEPPE ; Derweesh ITHAAR ; Minervini ANDREA ; Eun DANIEL ; Porpiglia FRANCESCO ; Perdona SISTO ; Porter JAMES ; Ferro MATTEO ; Mottrie ALEXANDRE ; Uzzo ROBERT ; Schips LUIGI ; White WESLEY ; Jacobsohn KEN ; Dasgupta PROKAR ; Autorino RICCARDO ; Lau CLAYTON ; Sundaram CHANDRU ; Capitanio UMBERTO ; Yinghao SUN ; Bo YANG
Chinese Journal of Urology 2018;39(6):407-412
Objective To analyze the safety and effectiveness of robot-assisted laparoscopic partial nephrectomy(RLPN) for cT2 renal tumors in international multi-centers.Methods This study was conducted to collect information on surgical procedures performed by RLPN and robot assisted laparoscopic radical nephrectomy (RRN) in nineteen international urological centers from January 2012 to December 2017.RLPN were performed in 159 patients (118 males and 41 females),with the average age of (59.3 ± 13.2) years,body mass index(BMI) of (28.7 ± 5.4)kg/m2,preoperative GFR of (77.3 ± 22.1) ml/min.RRN were performed in 219 patients,with the average age of (62.0 ± 12.9) years,BMI of (28.7 ±6.1) kg/m2,preoperative GFR of (71.4 ± 20.3) ml/min.There was no statistical difference between the two groups in gender and BMI.The age of the patients in RLPN group was younger than that in RRN group,and the preoperative GFR was better.The patient's baseline demographics,perioperative data,tumor pathology,oncologic outcomes,and renal function (GFR) were recorded.Results All 378 cases underwent successful surgery.The operation time of RLPN was 150 min(65-353 min),which was shorter than that of RRN [180 min(85-361 min),P < 0.001].The intra-operative blood loss of RLPN was more than that of RRN [150 ml (40-3 000 ml) vs.100 ml (10-1 100 ml),P < 0.001].The incidence of intra-operative complications were not statistically different between the two groups [5.7% (9/159) vs.3.2% (7/219),P =0.240].The incidence of postoperative complications was higher in the RLPN group than that in RRN group [19.5% (31/159) vs.10.5% (23/219),P =0.014],but there was no significant difference in the incidence of complications of grade 3 or above [4.4% (7/159) vs.2.3% (5/219),P =0.246].The recurrence-free survival rate of RLPN group was higher than that of RRN group [91.4% (117/128) vs.81.9% (167/204),P =0.013],and RLPN group was more conducive to renal function protection (P < 0.001).Conclusions RLPN for cT2 tumors can obtain effective tumor control rate and better renal function preservation.It could be an acceptable alternative for surgical management of cT2 tumors.