Noninvasive Methods to Evaluate Bladder Obstruction in Men

Chughtai, Bilal; Lee, Richard; Te, Alexis E.; Kaplan, Steven A.

doi:10.1590/s1677-5538.ibju.2013.01.02

Cited by 5 publications

(10 citation statements)

References 46 publications

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“…Its invasive nature, limited access, and high cost are major obstacles for using this test in routine clinical practice. Several authors have been trying to design novel non‐invasive methods for measuring detrusor pressure with limited success, which are still considered experimental .…”

Section: Introductionmentioning

confidence: 99%

Increased Urinary Adenosine Triphosphate in Patients With Bladder Outlet Obstruction Due to Benign Prostate Hyperplasia

et al. 2016

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Section: Introductionmentioning

confidence: 99%

Increased Urinary Adenosine Triphosphate in Patients With Bladder Outlet Obstruction Due to Benign Prostate Hyperplasia

et al. 2016

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“…Bladder outlet obstruction (BOO), a common cause of lower urinary tract symptoms (LUTS), may be associated with overactive bladder, producing mixed storage and voiding symptoms; clinical decision making for successful treatment of BOO/LUTS often encompasses assessment using urodynamic studies 1,2 . However, invasive urodynamic studies are cumbersome, expensive, and associated with risks of bothersome urinary symptoms and potential radiation side effects 3,4 . While invasive studies may have value in providing a detailed patient profile of filling and voiding phases to assess causes of LUTS, noninvasive studies may suffice for the diagnosis of BOO and offer the benefits of minimal patient discomfort, reduced procedural side effects, lowered cost, and decreased risk of urinary tract infections 4,5 …”

Section: Introductionmentioning

confidence: 99%

Use of the penile cuff test to diagnose bladder outlet obstruction: A systematic review and meta‐analysis

Khosla

Codelia-Anjum

Sze

et al. 2022

LUTS

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Purpose Among noninvasive modalities for assessing bladder outlet obstruction (BOO), the penile cuff test (PCT) is the most used in clinical practice. The purpose of this review was to evaluate the performance of PCT in diagnosing and managing BOO. Materials and Methods PubMed, Scopus, CINAHL, Embase, Cochrane Library, and Web of Science were searched for studies investigating use of PCT for BOO. Studies evaluating diagnostic parameters, inter‐observer agreements, or treatment outcomes using PCT were included. The Preferred Reporting Items for Systematic Reviews and Meta‐Analyses protocol was followed (PROSPERO ID: CRD42022300047). A proportional meta‐analysis was done for diagnostic accuracy proportions. The Egger's and the Begg‐Mazumdar rank‐correlation tests were used to assess publication bias. Risk of bias was assessed using the Gradings of Recommendations, Assessment, Development, and Evaluations (GRADE) criteria. Results Of the 272 articles retrieved, 17 were included in qualitative synthesis and meta‐analysis was performed on five studies (comprising 448 patients). Two studies evaluating inter‐observer agreement demonstrated 95% agreement and five studies evaluating procedures reported a 66%‐80% surgical success rate on obstructed patients using PCT. From the proportional meta‐analysis, the sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) were 0.85 (95% CI 0.71‐0.95) 0.78 (95% CI 0.67‐0.87), 0.74 (95% CI 0.52‐0.91), and 0.87 (95% CI 0.73‐0.96), respectively. Publication bias was noted for PPV but not for sensitivity, specificity, or NPV. Based on the GRADE criteria, there were two low, six moderate, and nine high‐quality studies. Conclusions PCT performs sufficiently in diagnosing and managing BOO. However, due to variability in obstruction criteria assessment, more studies comparing diagnostic criteria are warranted.

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“…Typically, upon encountering the arterial bleeding during the laser prostatectomy, urological surgeons increase the distance between the fiber tip and the bleeding site (3 ~ 4 mm) and/or decrease the laser power to reduce the irradiance below vaporization threshold . Then, the urologists start to sweep the laser light at a fast speed by circling the beam around the bleeder as the bleeding vessel has a cylindrical shape . Another approach to manage the bleeding is to improve visibility by using an irrigation pump and to compress the bleeder by using a beak of the cystoscope .…”

Section: Introductionmentioning

confidence: 99%

“…Then, the urologists start to sweep the laser light at a fast speed by circling the beam around the bleeder as the bleeding vessel has a cylindrical shape . Another approach to manage the bleeding is to improve visibility by using an irrigation pump and to compress the bleeder by using a beak of the cystoscope . If all the measures fail to achieve hemostasis, an electrocautery loop can be inserted through the cystoscope to cope with the bleeding site .…”

Section: Introductionmentioning

confidence: 99%

“…Another approach to manage the bleeding is to improve visibility by using an irrigation pump and to compress the bleeder by using a beak of the cystoscope . If all the measures fail to achieve hemostasis, an electrocautery loop can be inserted through the cystoscope to cope with the bleeding site . However, in spite of the hemostatic capability, using the electrode can prolong the procedure due to device replacement and can even cause significant thermal injury to the adjacent tissue.…”

Section: Introductionmentioning

confidence: 99%

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Dual‐wavelength‐assisted thermal hemostasis for treatment of benign prostate hyperplasia

Hwang

Kim

Truong

et al. 2017

Journal of Biophotonics

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Laser treatment on a large size of prostate gland often encounters significant bleeding that can prolong the entire procedure and cause urinary complications. The current study investigates the feasibility of dual-wavelength (532 and 980 nm) application to achieve rapid hemostasis for 532-nm laser prostatectomy. Porcine kidney and bleeding phantom models were tested to quantify the degree of the irreversible tissue coagulation and to estimate the time for the complete hemostasis, respectively. The ex vivo kidney testing verifies that the dual-wavelength created up to 40% deeper and 25% wider coagulation regions than a single wavelength does. The bleeding phantom testing demonstrates that due to the enhanced thermal effects, the simultaneous irradiation yields the complete photocoagulation (~11 seconds) whereas 532 or 980 nm hardly stops bleeders. Numerical simulations validate that the combined optical-thermal characteristics of both the wavelengths account for the augmented thermal coagulation. The dual-wavelength-assisted coagulation can be a feasible treatment to entail the rapid hemostasis and to facilitate the laser prostatectomy in an effective manner.

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Noninvasive Methods to Evaluate Bladder Obstruction in Men

Abstract: Lower urinary tract symptoms (LUTS) caused by benign prostatic hyperplasia (BPH

Cited by 5 publications

References 46 publications

Increased Urinary Adenosine Triphosphate in Patients With Bladder Outlet Obstruction Due to Benign Prostate Hyperplasia

Increased Urinary Adenosine Triphosphate in Patients With Bladder Outlet Obstruction Due to Benign Prostate Hyperplasia

Use of the penile cuff test to diagnose bladder outlet obstruction: A systematic review and meta‐analysis

Dual‐wavelength‐assisted thermal hemostasis for treatment of benign prostate hyperplasia

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