Effect of the Pneumoperitoneum on Dynamic Variables Delta PP and PVI During Trendelenburg Position.

Brugmann University Hospital50 enrolled

Overview

Arterial pulse pressure variation induced by mechanical ventilation (ΔPP) is considered one of the best parameter to predict fluid responsiveness in patients under general anaesthesia. Pleth Variability Index (PVI) has been proposed as a less invasive alternative. However, the pneumoperitoneum has been recently seen suggested as a limitation to their interpretation. The aim of this observational study is to compare changes in ΔPP and PVI related to autotransfusion associated with a Trendelenburg manoeuver before and during laparoscopy in patients undergoing elective surgery.

Study Type

INTERVENTIONAL

Allocation

Purpose

DIAGNOSTIC

Masking

NONE

Enrollment

Conditions

Surgery

Interventions

PVI and deltaPP after trendelenburg position change

Eligibility

Sex: ALLMin age: 18 YearsMax age: 100 Years

Medical Language ↔ Plain English

* American Society of Anesthesiologists (ASA) score I-II * scheduled for elective abdominal laparoscopic surgery * with written informed consent * more than 18 years * Body Mass Index \< 40 kg.m-2 * no supraventricular arrhythmias * no heart failure with ejection fraction \<25 % * no peripheral vascular * no severe respiratory disease * no end stage renal failure (creatinine clearance \<30ml/min).

Outcomes

Primary Outcomes

Pleth variability index (in %)

Before/after trendelenburg positioning in laparoscopic surgery

Time frame: 5 minutes

Pulse Pressure variation (deltaPP) (in %)