Impact of bladder volume on radiation dose to the rectum in the definitive treatment of prostate cancer

Frizzell, Bart; Lovato, James; Foster, Jennifer E.; Towers, Ashley; Lucas, John T.; Able, C

doi:10.12788/jcso.0156

Cited by 6 publications

(2 citation statements)

References 17 publications

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“…Frizzell B et al made a de nitive treatment for prostate cancer, according to the in uence of BV on rectal radiotherapy dose. The lling of bladder was compared with emptied bladder, the average exposure dose of rectum decreased by 27.6 Gy, and there was signi cant difference (P=0.031) [30]. Buchali et al found that when the BV increased, the exposure dose decreased.…”

Section: The Consistency Of Bv During Radiotherapymentioning

confidence: 99%

WITHDRAWN: A study of bladder filling consistency before and during the radiotherapy for pelvic cancer

Feng

Chen

Huang

et al. 2020

Preprint

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Background: The purpose of this study was to analyze the consistency of bladder filling before and during radiotherapy for pelvic cancer patients.Methods: Before radiotherapy, 105 patients followed a strict bladder protocol of consuming 540mL of water immediately after emptying the bladder. Bladderscan device BVI 9400 was used after emptying bladder and measured every 30 minutes until the bladder volume achieve 400mL. When emptying, half an hour and 1 hour after drinking, chief complaint of urgency, the actual bladder volume and corresponding time were described as: U0, t0; U0.5, t0.5; U1, t1; Ut, t; UT, T. During radiotherapy, 18 patients were randomly selected from 105 patients. They were instructed to keep the same pattern of suppressing urination during the following radiotherapy. The chief complaint of urgency during radiotherapy was observed and recorded. The relative bladder volume was as close as possible to (50%,155%).Results: Before radiotherapy, patients were no statistically difference between U1 (P=0.177) and UT (P=0.052) in the Immobilization, Simulation CT scan, X-ray Simulation. Bladder volume was concentrated at 298-526mL. There was no statistical difference between Ut and UT in X-ray Simulation(P=0.198). Patients emptied bladder volume for 75.2±49.9min, Ut=331.2±140.3mL. During radiotherapy, 18 (18/105) patients received a total of 450 bladder volume (18*25). UP and UT were statisticall different (P<0.05), and the difference was 17.81%. The overall relative bladder volume was negatively correlated with the number of radiotherapy (r = -0.5726, p = 0.0028) and the consistency rate was 82.89% (373/450). 15 patients (15/18) passed, and the consistency rate was 96% (360/375). 3 patients (3/18) failed, and the consistency rate was 17.33% (13/75). The consistency rate had no linear correlations with age (P = 0.2741). Conclusions: U1 was consistent in the Immobilization, Simulation CT scan, X-ray Simulation and during inter-fraction radiotherapy. This indicates that the consistency range is reasonable. Relative bladder volume between (50%,155%) can determine whether the bladder filling of patients with pelvic cancer is consistent with the planned bladder volume before radiotherapy.

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Section: The Consistency Of Bv During Radiotherapymentioning

confidence: 99%

WITHDRAWN: A study of bladder filling consistency before and during the radiotherapy for pelvic cancer

Feng

Chen

Huang

et al. 2020

Preprint

View full text Add to dashboard Cite

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“…Despite no agreement on the embryonic origin of DVF, three theories including tension induction, mesenchyme, and peritoneal fusion all support the concept of DVF as a separate structure that neither belongs to the fascia propria of the rectum nor to the urogenital system[ 8 - 11 ]. Frizzell et al [ 12 ] observed that DVF fused with the anterior mesorectal fascia in imaging such as magnetic resonance imaging and therefore was difficultly differentiated and that the above two types of fascia exhibited a low-signal shadow of a single-layer linear structure after being reflected between the anterior rectal wall of the rectum and vagina, the seminal vesicle and the prostate, and peritoneum (Figure 1B ). Another researcher discovered that intraoperative observations (endorectal ultrasound) were completely consistent with the anatomical course of DVF and that DVF divided the rectum and urogenital organs into posterior prostatic space and anterior rectal space, among which the latter existed objectively as the anatomical plane of separation plane during TME.…”

Section: The Origin Basis and Clinical Anatomy Of Dvfmentioning

confidence: 99%

From basic to clinical: Anatomy of Denonvilliers’ fascia and its application in laparoscopic radical resection of rectal cancer

Chen,

Zhang,

Chang

et al. 2023

World J Gastrointest Surg

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Postcholecystectomy bile duct injury (BDI) remains a devastating iatrogenic complication that adversely impacts the quality of life with high healthcare costs. Despite a decrease in the incidence of laparoscopic cholecystectomy-related BDI, the absolute number remains high as cholecystectomy is a commonly performed surgical procedure. Open Roux-en-Y hepaticojejunostomy with meticulous surgical technique remains the gold standard surgical procedure with excellent long-term results in most patients. As with many hepatobiliary disorders, a minimally invasive approach has been recently explored to minimize access-related complications and improve postoperative recovery. Since patients with gallstone disease are often admitted for a minimally invasive cholecystectomy, laparoscopic and robotic approaches for repairing postcholecystectomy biliary stricture are attractive. While recent series have shown the feasibility and safety of minimally invasive post-cholecystectomy biliary stricture management, most are retrospective analyses with small sample sizes. Also, long-term follow-up is available only in a limited number of studies. The principles and technique of minimally invasive repair resemble open repair except for the extent of adhesiolysis and the suturing technique with continuous sutures commonly used in minimally invasive approaches. The robotic approach overcomes key limitations of laparoscopic surgery and has the potential to become the preferred minimally invasive approach for the repair of postcholecystectomy biliary stricture. Despite increasing use, lack of prospective studies and selection bias with available evidence precludes definitive conclusions regarding minimally invasive surgery for managing postcholecystectomy biliary stricture. High-volume prospective studies are required to confirm the initial promising outcomes with minimally invasive surgery.

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Gemcitabine based trimodality treatment in patients with muscle invasive bladder cancer: May neutrophil lymphocyte and platelet lymphocyte ratios predict outcomes?

Hürmüz

Özyiğit

Kilickap

et al. 2021

Urologic Oncology: Seminars and Original Investigations

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Impact of bladder volume on radiation dose to the rectum in the definitive treatment of prostate cancer

Abstract: A greater bladder volume resulted in a reduced mean dose to the rectum irrespective of planning method.

Cited by 6 publications

References 17 publications

WITHDRAWN: A study of bladder filling consistency before and during the radiotherapy for pelvic cancer

WITHDRAWN: A study of bladder filling consistency before and during the radiotherapy for pelvic cancer

From basic to clinical: Anatomy of Denonvilliers’ fascia and its application in laparoscopic radical resection of rectal cancer

Gemcitabine based trimodality treatment in patients with muscle invasive bladder cancer: May neutrophil lymphocyte and platelet lymphocyte ratios predict outcomes?

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