Suprapubic Bladder Aspiration Assisted by Ultrasound

Lee, Jung Won; Park, Soeun; Cho, Su Jin; Yoo, Eun Sun; Kim, Hae Soon; Lee, Seoung Joo

J Korean Soc Pediatr Nephrol > Volume 6(1); 2002 > Article

J Korean Soc Pediatr Nephrol 2002;6(1): 68-74.

초음파 보조하에 시행한 치골상부 방광천자의 유용성

이정원, 박소은, 조수진, 유은선, 김혜순, 이승주

¹이화여자대학교 의과대학 소아과학교실
²이화여자대학교 의과대학 소아과학교실
³이화여자대학교 의과대학 소아과학교실
⁴이화여자대학교 의과대학 소아과학교실
⁵이화여자대학교 의과대학 소아과학교실
⁶이화여자대학교 의과대학 소아과학교실

Suprapubic Bladder Aspiration Assisted by Ultrasound

Jung Won Lee, Soeun Park, Su Jin Cho, Eun Sun Yoo, Hae Soon Kim, Seoung Joo Lee

¹Department of Pediatrics, Ewha Womans University, College of Medicine, Ewha Medical Research Center
²Department of Pediatrics, Ewha Womans University, College of Medicine, Ewha Medical Research Center
³Department of Pediatrics, Ewha Womans University, College of Medicine, Ewha Medical Research Center
⁴Department of Pediatrics, Ewha Womans University, College of Medicine, Ewha Medical Research Center
⁵Department of Pediatrics, Ewha Womans University, College of Medicine, Ewha Medical Research Center
⁶Department of Pediatrics, Ewha Womans University, College of Medicine, Ewha Medical Research Center

ABSTRACT

Purpose: Suprapubic bladder aspiration(SBA) of urine is the most reliable method to obtain urine avoiding contamination in non-toilet trained infants. Ultrasonography is a useful tool for guiding the anatomic location as well as for direct visualization during procedure. We evaluated the success rate and complication of ultrasound(US) assisted SBA Methods. Sixty infants who visited Ewha Womans University Mokdong Hospital, with suspected urinary tract infection were randomly divided into the US assisted (n=32) and blind SBA(control, n=28) group. In US assisted SBA group, the anteroposterior(AP), transverse, and sagittal diameters and the volume of the bladder were measured. In the blind SBA group, urine was blindly aspirated when the urinary bladder was palpated at the suprapubic area. The rate of successful urine aspiration, the number of attempts until successful aspiration, aspirated urine volume were compared between the two groups.
Results : The success rate was $100%$(32/32) in the US assisted group, which was significantly higher than $85.7%$(24/28) of the control group (P<0.05). The aspirated urine volume in the US assisted group was $7.4{pm}3.7;mL$, which was significantly higher than $4.5{pm}3.4;mL$ of the control group (P<0.05), The diameters and volume of bladder in successful aspiration were $2.1{pm}0.7;cm$ in AP diameter, $3.1{pm}0.6;cm$ in transverse diameter, $4.2{pm}1.0;cm$ in sagittal diameter and $15.2{pm}10.4;mL$ in volume, which were significantly higher than those ($1.7{pm}0.3;cm,;1.7{pm}0.3;cm,;1.8{pm}0.7;cm,;2.4{pm]0.6;cm,;3.9{pm}2.5$) of the control group (P<0.05) The correlations between the AP(r=0.78), transverse (r=0.72), sagittal(r=0.91) diameter and bladder volume were significant (P<0.05). SBA was $100%$ successful in the AP diameter >3 cm, transverse diameter >4 cm, depth >4 cm and bladder volume >5 mL.
Conclusion : US assistance can significantly improve the success rate of SBA in infant with suspected urinary tract infection. (J Korean Soc Pediatr Nephrol 2002 ; 6 : 68-74)

Key words: Ultrasound assisted | Suprapubic bladder aspiration