title: Impact of the Non-pneumatic Antishock Garment on pelvic blood flow in healthy postpartum women.
abstract: OBJECTIVE
  The Non-pneumatic Antishock Garment (NASG) is a compression device that has shown significantly decreased blood loss in cases of obstetric hemorrhage. However, there are no physiologic studies of the NASG in postpartum women. This study used Doppler ultrasound to measure the resistive index (RI) in the internal iliac artery, thus approximating blood flow to the pelvis with and without the garment applied.
  
  
  METHODS
  In this study, RI of the internal iliac artery was measured in a sample of 10 postpartum volunteers with and without the NASG applied. Median RI was calculated and compared between baseline and full application.
  
  
  RESULTS
  Internal iliac artery median RI was 0.83 (SD 0.11) at baseline and increased to 1.05 (SD 0.15) with full NASG application (P = .02).
  
  
  CONCLUSIONS
  This study suggests a significant increase in internal iliac artery RI with NASG application and provides a physiological explanation of how the NASG might reduce postpartum hemorrhage.
authors: Department of Obstetrics and Gynecology, Brigham and Women's Hospital, Boston, MA 02120, USA. flester@partners.org
authors: Felicia
authors: F
authors: Lester
authors: Amy
authors: A
authors: Stenson
authors: Carinne
authors: C
authors: Meyer
authors: Jessica
authors: J
authors: Morris
authors: Juan
authors: J
authors: Vargas
authors: Suellen
authors: S
authors: Miller
mesh_terms: D000328:Adult; D005260:Female; D005676:Gravity Suits; D006801:Humans; D010388:Pelvis / Q000098:blood supply* / Q000000981:diagnostic imaging; D006473:Postpartum Hemorrhage / Q000517:prevention & control*; D049590:Postpartum Period; D011247:Pregnancy; D012039:Regional Blood Flow / Q000502:physiology*; D014463:Ultrasonography