Functional Residual Capacity Measured by Capnography in Ventilated Patients

Hospital Privado de Comunidad de Mar del Plata

Status: Completed

Conditions: Respiratory Physiological Phenomena

Study type: Observational

Funder types: Other

Identifiers

NCT03693352

2919/1728/18

Details and patient eligibility

About

Changes in body position during anesthesia can alter functional residual capacity and gas exchange. The monitoring of such changes in functional residual capacity is difficult at the bedside. The present study was designed to determine if volumetric capnography can detect changes in the functional residual capacity during surgery.

Full description

This is a prospective and observational study designed to test the reliability of the capnodynamic equation to determine changes in functional residual capacity measured during anesthesia. The investigators will studied 40 mechanically ventilated patients undergoing general anesthesia. Functional residual capacity will be continuously measured in a non invasive way using expired carbon dioxide. Changes in functional residual capacity with standard modification in body positioning (Trendelenburg or anti-Trendelenburg position) and ventilatory settings wiil be tested.

Enrollment: 40 patients

Sex: All

Ages: 30 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Written Inform Consent
• Programmed surgery
• Laparoscopic surgery
• Supine position

Exclusion criteria

• Emergency surgery
• Chronic respiratory disease
• Active smoking

Trial design

40 participants in 1 patient group

Patients undergoing surgeries

Description:

Patients ASA 1-3, undergoing different types of general anesthesia that need postural changes like Trendelenburg and anti-Trendelenburg positioning.