The use of bladder volume measurement assessed by ultrasound in predicting postoperative urinary retention

Öztürk, Nilgün; Kavakli, Ali Sait

doi:10.14744/nci.2016.03164

Cited by 13 publications

(9 citation statements)

References 19 publications

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“…29 The values obtained for mesorectal volume and surface area were in accordance with the values reported in literature based on MR and ultrasound images. 30 The pelvis volume was found to be significantly correlated with height and the pelvic inlet diameter was positively correlated with body weight in accordance with literature. [31][32][33] The anterior-posterior distance between inferior pelvic floor muscle and pubic symphysis and the angle between superior mesorectum and sacral promontory were correlated with subject height, which can help surgeons better perform sharp dissection of the mesorectal envelope and stay within the surgical boundaries by using proper surgical devices during TME.…”

Section: Discussionsupporting

confidence: 89%

Pelvic and Lower Gastrointestinal Tract Anatomical Characterization of the Average Male

Saffarzadeh

Eckert²,

Nagle³

et al. 2018

Surg Innov

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Objective. Colorectal surgeons report difficulty in positioning surgical devices in males, particularly those with a narrower pelvis. The objectives of this study were to (1) characterize the anatomy of the pelvis and surrounding soft tissue from magnetic resonance and computed tomography scans from 10 average males (175 cm, 78 kg) and (2) develop a model representing the mean configuration to assess variability. Methods. The anatomy was characterized from existing scans using segmentation and registration techniques. Size and shape variation in the pelvis and soft tissue morphology was characterized using the Generalized Procrustes Analysis to compute the mean configuration. Results. There was considerable variability in volume of the psoas, connective tissue, and pelvis and in surface area of the mesorectum, pelvis, and connective tissue. Subject height was positively correlated with mesorectum surface area (P = .028, R 2 = 0.47) and pelvis volume (P = .041, R 2 = 0.43). The anterior-posterior distance between the inferior pelvic floor muscle and pubic symphysis was positively correlated with subject height (P = .043, r = 0.65). The angle between the superior mesorectum and sacral promontory was negatively correlated with subject height (P = .042, r = −0.65). The pelvic inlet was positively correlated with subject weight (P = .001, r = 0.89). Conclusions. There was considerable variability in organ volume and surface area among average males with some correlations to subject height and weight. A physical trainer model created from these data helped surgeons trial and assess device prototypes in a controllable environment.

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Section: Discussionsupporting

confidence: 89%

Pelvic and Lower Gastrointestinal Tract Anatomical Characterization of the Average Male

Saffarzadeh

Eckert²,

Nagle³

et al. 2018

Surg Innov

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“…No previous descriptions of the mean bladder volume in pigs have been located and, certainly, such volume may vary according to the degree of bladder repletion and the method of measurement. In humans, this mean volume varies between 400 and 600 mL 56 and, therefore, despite possible measurement biases, it is similar to that found in the evaluated swine, with an average volume of 423.7 mL. Bladder manipulation during urological procedures should be careful due to the fragility of the bladder wall, which is thinner when compared to humans or other mammals 57 .…”

Section: Discussionsupporting

confidence: 72%

Image-guided study of swine anatomy as a tool for urologic surgery research and training

et al. 2020

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“…Transabdominal ultrasound is frequently used for measuring bladder volumes non-invasively to prevent postoperative urinary retention (= POUR) by timely catheterization, but also to avoid unnecessary bladder catheterizations [ 1 – 4 ]. Bladder catheterization is the “standard” treatment for POUR [ 1 , 5 , 6 ], but it is an invasive procedure that contributes to an increased risk of urinary tract infections, urethral trauma, patient discomfort and unplanned and prolonged hospital admissions [ 7 – 10 ].…”

Section: Introductionmentioning

confidence: 99%

Non-invasive bladder volume measurement for the prevention of postoperative urinary retention: validation of two ultrasound devices in a clinical setting

Brouwer

Boogaard

Roon

et al. 2018

J Clin Monit Comput

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Ultrasound scanning of bladder volume is used for prevention of postoperative urinary retention (POUR). Accurate assessment of bladder volume is needed to allow clinical decision-making regarding the need for postoperative catheterization. Two commonly used ultrasound devices, the BladderScan® BVI 9400 and the newly released Prime® (Verathon Medical®, Bothell, WA, USA), with or without the ‘pre-scan’ option, have not been validated in clinical practice. The aim of this study was to assess the performance of these devices in daily clinical practice. Between June and September 2016 a prospective observational study was conducted in 318 surgical patients (18 years or older) who needed a urinary catheter perioperatively for clinical reasons. For acceptable performance, we required that the volume as estimated by the BladderScan® differs by no more than 5% from the actual urine volume after catheterization. The Schuirmann’s two one-sided test was performed to assess equivalence between the BladderScan® estimate and catheterization. The BVI 9400® overestimated the actual bladder volume by + 17.5% (95% CI + 8.8 to + 26.3%). The Prime® without pre-scan underestimated by − 4.1% (95% CI − 8.8 to + 0.5%) and the Prime® with pre-scan underestimated by − 6.3% (95% CI − 11.6 to − 1.1%). This study shows that while both ultrasound devices were able to approximate current bladder volume, both BVI 9400® and Prime®—with and without pre-scan—were not able to measure the actual bladder volume within our predefined limit of ± 5%. Using the pre-scan feature of the Prime® did not further improve accuracy.

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The use of bladder volume measurement assessed by ultrasound in predicting postoperative urinary retention

Cited by 13 publications

References 19 publications

Pelvic and Lower Gastrointestinal Tract Anatomical Characterization of the Average Male

Pelvic and Lower Gastrointestinal Tract Anatomical Characterization of the Average Male

Image-guided study of swine anatomy as a tool for urologic surgery research and training

Non-invasive bladder volume measurement for the prevention of postoperative urinary retention: validation of two ultrasound devices in a clinical setting

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