How do You Take Your Coffee Before Anesthesia

University of Arkansas

Status: Completed

Conditions: Aspiration; Fasting; Anesthesia

Treatments: Other: Addition of half and half to coffee; Other: Addition of non-dairy creamer to coffee; Other: Black

Study type: Interventional

Funder types: Other

Identifiers

NCT04786691

262000

Details and patient eligibility

About

Undergoing anesthesia requires patients to fast pre-operatively to allow the stomach to empty and prevent aspiration pneumonia but patients are allowed to drink "clear" liquids up to 2 hours before surgery. Clear liquids are defined as water, carbonated sodas, black coffee or tea without milk or sugar, and juices without pulp. Many Americans prefer to take their coffee with half and half or coffee creamer rather than black. This study will determine whether the addition of a small amount of cream to coffee makes any difference to the volume in the stomach after 2 hours.

This study will use healthy volunteers as study participants. Each participant will participate in the study 3 times with at least 2 days in between. We will use a bedside ultrasound machine to measure their stomach content volume at baseline and then they will consume one of 3 different prepare drinks - black coffee, coffee with half and half, or coffee with non-dairy coffee creamer. After 2 hours, we will scan their stomach again and measure stomach content volume and compare it to the first measurement. The participants will repeat this two more times on different days so that they would have had a chance to consume all three prepared coffee drinks in a random order.

Enrollment: 18 patients

Sex: All

Ages: 18 to 65 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Age between 18-65

Exclusion criteria

• Diabetes mellitus
• Delayed gastric emptying
• Previous gastric surgery
• Lactose intolerance
• Current pregnancy
• Consumption of solid/liquids in 6 hours prior to commencement of ultrasound study

Trial design

Primary purpose: Basic Science

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Double Blind

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18 participants in 3 patient groups, including a placebo group

Black coffee first

Placebo Comparator group

Description:

12 oz of black coffee with no additives is the first intervention tested

Treatment:

Other: Addition of half and half to coffee

Other: Black

Other: Addition of non-dairy creamer to coffee

Coffee with half and half first

Active Comparator group

Description:

12 oz of black coffee with 1 oz of half and half is the first intervention tested

Treatment:

Other: Addition of half and half to coffee

Other: Black

Other: Addition of non-dairy creamer to coffee

Coffee with non-dairy creamer first

Active Comparator group

Description:

12 oz of black coffee with 1 oz of liquid non-dairy creamer is the first intervention tested

Treatment:

Other: Addition of half and half to coffee

Other: Black

Other: Addition of non-dairy creamer to coffee