Modes of Ventilation During Laparoscopic Bariatric Surgery

Joseph D. Tobias

Status: Completed

Conditions: Bariatric Surgery

Treatments: Other: PRVC ventilation; Other: Pressure controlled ventilation; Other: Volume controlled ventilation

Study type: Observational

Funder types: Other

Identifiers

NCT01890564

IRB12-00783

Details and patient eligibility

About

During minimally invasive surgery, a pneumoperitoneum is created to facilitate surgical visualization. Although effective in facilitating the procedure, there are respiratory consequences of the pneumoperitoneum, which significantly increases intra-abdominal pressure (IAP) up to 20 cmH2O. The increased IAP can decrease functional residual capacity and increase closing capacity resulting in increased resistance, decreased compliance, and increased ventilation-perfusion mismatch. In a randomized, cross-over design, this study will evaluate in sequential order, 3 modes of ventilation during laparoscopic bariatric surgery to determine which is better able to support oxygenation and ventilation while limiting the peak inflating pressure (PIP).

Enrollment: 30 patients

Sex: All

Ages: 14 to 20 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Laparoscopic bariatric surgery requiring intra-arterial blood pressure monitoring, age 14-20 years.

Exclusion criteria

• None

Trial design

30 participants in 1 patient group

Bariatric surgery

Description:

Patients undergoing bariatric surgery.

Treatment:

Other: Volume controlled ventilation

Other: Pressure controlled ventilation

Other: PRVC ventilation