Ultrasound your NPO: Effect of body mass index on gastric volume in term pregnant women – Retrospective case series

Efrain Riveros-Perez, Sherwin Davoud, Maria Gabriela Sanchez, Hugo Montesinos, Alexander Rocuts

Research output: Contribution to journalArticle

Abstract

Introduction: A common belief has been that obese patients are prone to develop aspiration of gastric contents when general anesthesia is administered. We aimed to determine the correlation between antral cross-sectional area as a surrogate of gastric volume measured by gastric ultrasound, and body mass index (BMI) in term pregnant women scheduled for elective cesarean section. Methods: A cross-sectional observational study was conducted on forty-two term pregnant patients scheduled for cesarean section. A preoperative qualitative and quantitative ultrasound assessment of the antral area was performed on the day of surgery. Gastric volume as a function of BMI was evaluated. Results: A significant correlation was found between BMI and gastric antral area (p = 0.001), as well as with longitudinal diameter (p < 0.001). This correlation is independent of gravidity and parity. Conclusion: BMI is an independent predictor of antral cross sectional area and gastric volume in term pregnant patients scheduled for cesarean section. Perioperative fasting guidelines in pregnancy should be adjusted in obese and morbidly obese pregnant women.

Original languageEnglish (US)
Pages (from-to)95-98
Number of pages4
JournalAnnals of Medicine and Surgery
Volume48
DOIs
StatePublished - Dec 2019

Fingerprint

Pregnant Women
Stomach
Body Mass Index
Cesarean Section
Gravidity
Gastrointestinal Contents
Parity
Ambulatory Surgical Procedures
General Anesthesia
Observational Studies
Fasting
Cross-Sectional Studies
Guidelines
Pregnancy
Antral

Keywords

  • Antral area
  • Gastric volume
  • Pregnancy
  • Preoperative fasting
  • Ultrasound

ASJC Scopus subject areas

  • Surgery

Cite this

Ultrasound your NPO : Effect of body mass index on gastric volume in term pregnant women – Retrospective case series. / Riveros-Perez, Efrain; Davoud, Sherwin; Sanchez, Maria Gabriela; Montesinos, Hugo; Rocuts, Alexander.

In: Annals of Medicine and Surgery, Vol. 48, 12.2019, p. 95-98.

Research output: Contribution to journalArticle

Riveros-Perez, Efrain ; Davoud, Sherwin ; Sanchez, Maria Gabriela ; Montesinos, Hugo ; Rocuts, Alexander. / Ultrasound your NPO : Effect of body mass index on gastric volume in term pregnant women – Retrospective case series. In: Annals of Medicine and Surgery. 2019 ; Vol. 48. pp. 95-98.
@article{81a8f4cd1e4c4f1ea2eafb306bea04fd,
title = "Ultrasound your NPO: Effect of body mass index on gastric volume in term pregnant women – Retrospective case series",
abstract = "Introduction: A common belief has been that obese patients are prone to develop aspiration of gastric contents when general anesthesia is administered. We aimed to determine the correlation between antral cross-sectional area as a surrogate of gastric volume measured by gastric ultrasound, and body mass index (BMI) in term pregnant women scheduled for elective cesarean section. Methods: A cross-sectional observational study was conducted on forty-two term pregnant patients scheduled for cesarean section. A preoperative qualitative and quantitative ultrasound assessment of the antral area was performed on the day of surgery. Gastric volume as a function of BMI was evaluated. Results: A significant correlation was found between BMI and gastric antral area (p = 0.001), as well as with longitudinal diameter (p < 0.001). This correlation is independent of gravidity and parity. Conclusion: BMI is an independent predictor of antral cross sectional area and gastric volume in term pregnant patients scheduled for cesarean section. Perioperative fasting guidelines in pregnancy should be adjusted in obese and morbidly obese pregnant women.",
keywords = "Antral area, Gastric volume, Pregnancy, Preoperative fasting, Ultrasound",
author = "Efrain Riveros-Perez and Sherwin Davoud and Sanchez, {Maria Gabriela} and Hugo Montesinos and Alexander Rocuts",
year = "2019",
month = "12",
doi = "10.1016/j.amsu.2019.10.029",
language = "English (US)",
volume = "48",
pages = "95--98",
journal = "Annals of Medicine and Surgery",
issn = "2049-0801",
publisher = "Elsevier BV",

}

TY - JOUR

T1 - Ultrasound your NPO

T2 - Effect of body mass index on gastric volume in term pregnant women – Retrospective case series

AU - Riveros-Perez, Efrain

AU - Davoud, Sherwin

AU - Sanchez, Maria Gabriela

AU - Montesinos, Hugo

AU - Rocuts, Alexander

PY - 2019/12

Y1 - 2019/12

N2 - Introduction: A common belief has been that obese patients are prone to develop aspiration of gastric contents when general anesthesia is administered. We aimed to determine the correlation between antral cross-sectional area as a surrogate of gastric volume measured by gastric ultrasound, and body mass index (BMI) in term pregnant women scheduled for elective cesarean section. Methods: A cross-sectional observational study was conducted on forty-two term pregnant patients scheduled for cesarean section. A preoperative qualitative and quantitative ultrasound assessment of the antral area was performed on the day of surgery. Gastric volume as a function of BMI was evaluated. Results: A significant correlation was found between BMI and gastric antral area (p = 0.001), as well as with longitudinal diameter (p < 0.001). This correlation is independent of gravidity and parity. Conclusion: BMI is an independent predictor of antral cross sectional area and gastric volume in term pregnant patients scheduled for cesarean section. Perioperative fasting guidelines in pregnancy should be adjusted in obese and morbidly obese pregnant women.

AB - Introduction: A common belief has been that obese patients are prone to develop aspiration of gastric contents when general anesthesia is administered. We aimed to determine the correlation between antral cross-sectional area as a surrogate of gastric volume measured by gastric ultrasound, and body mass index (BMI) in term pregnant women scheduled for elective cesarean section. Methods: A cross-sectional observational study was conducted on forty-two term pregnant patients scheduled for cesarean section. A preoperative qualitative and quantitative ultrasound assessment of the antral area was performed on the day of surgery. Gastric volume as a function of BMI was evaluated. Results: A significant correlation was found between BMI and gastric antral area (p = 0.001), as well as with longitudinal diameter (p < 0.001). This correlation is independent of gravidity and parity. Conclusion: BMI is an independent predictor of antral cross sectional area and gastric volume in term pregnant patients scheduled for cesarean section. Perioperative fasting guidelines in pregnancy should be adjusted in obese and morbidly obese pregnant women.

KW - Antral area

KW - Gastric volume

KW - Pregnancy

KW - Preoperative fasting

KW - Ultrasound

UR - http://www.scopus.com/inward/record.url?scp=85074654485&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85074654485&partnerID=8YFLogxK

U2 - 10.1016/j.amsu.2019.10.029

DO - 10.1016/j.amsu.2019.10.029

M3 - Article

AN - SCOPUS:85074654485

VL - 48

SP - 95

EP - 98

JO - Annals of Medicine and Surgery

JF - Annals of Medicine and Surgery

SN - 2049-0801

ER -