Ultrasound for the detection of intraperitoneal fluid: The role of Trendelenburg positioning

A prospective, observational study was performed to evaluate the role of Trendelenburg positioning in improving the sensitivity of the single-view ultrasound examination. Hemodynamically stable patients undergoing diagnostic peritoneal lavage (DPL) were assigned to one of two groups: supine or 5° of...

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Veröffentlicht in:The American journal of emergency medicine 1999-03, Vol.17 (2), p.117-120
Hauptverfasser: Abrams, Barbara J, Sukumvanich, Paniti, Seibel, Roger, Moscati, Ronald, Jehle, Dietrich
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container_end_page 120
container_issue 2
container_start_page 117
container_title The American journal of emergency medicine
container_volume 17
creator Abrams, Barbara J
Sukumvanich, Paniti
Seibel, Roger
Moscati, Ronald
Jehle, Dietrich
description A prospective, observational study was performed to evaluate the role of Trendelenburg positioning in improving the sensitivity of the single-view ultrasound examination. Hemodynamically stable patients undergoing diagnostic peritoneal lavage (DPL) were assigned to one of two groups: supine or 5° of Trendelenburg positioning. Baseline right intercostal oblique images of Morison's pouch were obtained followed by additional images for each 100 cc of lavage fluid instilled into the peritoneal cavity. The initial volume of fluid required to identify an anechoic stripe was recorded for each patient. Patients were excluded if they had (1) a positive DPL for hemoperitoneum (defined as 10 cc of gross blood or >100,000 red blood cells/μL), (2) positive baseline ultrasound study, (3) hemodynamic instability, or (4) lack of documentation (ie, baseline/subsequent hard copy images were not obtained or inadequately demonstrated anechoic stripe). The mean quantity of fluid for visualization of the anechoic stripe was 443.8 cc in the Trendelenburg group (n = 8) and 668.2 cc in the supine group (n = 11). These means were statistically different ( P < .05, t test). The median amount of fluid needed for visualization of the anechoic stripe was 400 cc and 700 cc for the Trendelenburg and supine groups, respectively.
doi_str_mv 10.1016/S0735-6757(99)90040-2
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subjects Abdominal Injuries - diagnostic imaging
Adult
Biological and medical sciences
Digestive system. Abdomen
Female
Head-Down Tilt - physiology
hemoperitoneum
Hemoperitoneum - diagnostic imaging
Humans
Investigative techniques, diagnostic techniques (general aspects)
Male
Medical sciences
Prospective Studies
Sensitivity and Specificity
Supine Position - physiology
Ultrasonic investigative techniques
Ultrasonography
Wounds, Nonpenetrating - diagnostic imaging
title Ultrasound for the detection of intraperitoneal fluid: The role of Trendelenburg positioning
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