Is six hours fasting time enough in term pregnancy? An ultrasound study of the stomach of fasted pregnant patients who are =36 weeks pregnant to determine if the 6 hours fasting time before an operation is enough in pregnancy

Is six hours’ fasting time enough in term pregnancy ? A prospective observational cohort study using ultrasound to determine the residual gastric volume in fasted pregnant patients of =36 weeks gestation

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

ISRCTN

Registry ID

ISRCTN14847686

Enrollment

Registered

2016-09-13

Start date

2016-09-15

Completion date

Unknown

Last updated

2016-10-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anaesthesia during pregnancy Pregnancy and Childbirth Anaesthesia during pregnancy

Interventions

Participating patients are contacted lead investigator a day or two before their regular antenatal appointment and given instructions what time to start their fast, and what to eat just before startin

Eligibility

Sex/Gender

Female

Inclusion criteria

Inclusion criteria: 1. Aged 18 years and over 2. Singleton pregnancy with a gestational age of 36 weeks or above 3. Ability to understand study protocol and provide informed consent

Exclusion criteria

Exclusion criteria: 1. Patient refusal to participate 2. Comorbidities affecting gastrointestinal motility, such as diabetes or preecclampsia 3. Previous gastric surgeries,hiatus hernia 4. BMI >35 5. Oligo or polyhydramnios on most recent scan 6. Severe intrauterine growth retardation

Design outcomes

Primary

Measure	Time frame
Percentage of patients who have a critical residual gastric volume after six hours of fasting is determined by assessing gastric volumes in ml/kg using gastric ultrasound at the study visit.	—

Secondary

Measure	Time frame
No secondary outcome measures	—

Countries

Ireland

Contacts

Public ContactSheeba Hakak

shakak@nmh.ie+353 1 6373100

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026