Non-invasive Cardiac Output Monitor in Young Adults

A Trial of a Non-Invasive Cardiac Output in Young Adults

The investigators would like to study cardiac output, stroke volume, and fluid responsiveness on young adult pediatric patients undergoing anesthesia and surgery with the use of the NICOM, a non-invasive monitor. The NICOM method is non-invasive and provides reliable trending of cardiac output and stroke volume. Measuring cardiac output in conjunction with routine monitoring will provide a better assessment of intra-operative status.

This study will involve measurements of cardiac output, stroke volume, and fluid responsiveness (change in stroke volume of ≥ 10%) obtained via passive leg raise (PLR) before and after anesthesia induction.

Inclusion Criteria:

• 18 -30 years of age
• presenting for surgery at Riley or University Hospital

Exclusion Criteria:

• younger than 18
• severely mentally handicapped
• orthopedic cases with leg injuries
• any other contraindications that would prevent or discourage passive leg raises
• if deemed ineligible by an investigator for any other reason.