Use of Portable Ultrasound to Assist Urine Collection by Suprapubic Aspiration

Use of Ultrasonography to Identify Infants for Whom Urinary Catheterization Will Be Unsuccessful Because of Insufficient Urine Volume: Validation of the Urinary Bladder Index

“…1,2,[4][5][6]8 Our data agree with preliminary findings from other investigators in which ultrasonographic assessment of bladder volume before catheterization led to a significantly better success rate (94% versus 68% for nonultrasonographic control subjects). 9 Those investigators did not incorporate the anteroposterior diameter in their assessment, and only a transverse diameter of 2 cm was used to predict success, which may have been an oversimplification because even gentle pressure with the ultrasonographic probe on a small child's bladder can change the bladder shape, widening the transverse diameter at the expense of the anteroposterior diameter.…”

“…3 Use of ultrasonography has been evaluated in suprapubic aspiration of pediatric patients as a preprocedural static assessment for the presence of urine and as a dynamic guidance tool. [4][5][6] However, there are few data on ultrasonography before catheterization.…”

Ultrasound-guided suprapubic cystostomy catheter placement in the emergency department

“…A full bladder is easy to visualize as a midline symmetrical hypoechoic image under the abdominal rectus muscles in the suprapubic abdominal region. The bladder is best visualized when it is distended, using 3.5-, 5.0-, or 7.5-MHz transducer probes on trans-abdominal transverse and longitudinal axial planes (2,3). Tenting of the bladder wall can be seen by ultrasound as the needle 320 P. A.…”

“…It is the general consensus that ultrasound provides additional safety and efficacy by providing real-time imaging that is superior to blind approaches. Although ultrasoundguided bladder aspiration has been described in the literature, we describe a consecutive series of ultrasound technology used in conjunction with emergency bladder drainage in the context of a suprapubic catheter placement guided by ultrasound (3).…”

Bedside ultrasound in the pediatric emergency department

“…Multiple studies have shown increased success rates when EUS has been used before attempts are made [47,48]. Additionally, in one study dynamic use of ultrasound led to fewer mean number of needle passes and more urine obtained [49].…”