Predictability of the Pulse Pressure Variation (PPV) During Spontaneous Ventilation on the Incidence of Hypotension During Induction of Anesthesia

Predictability of the Pulse Pressure Variation During Spontaneous Ventilation on the Incidence of Hypotension During Induction of Anesthesia

The purpose of this study is to find out the predictability of the pulse pressure variation during spontaneous ventilation on the incidence of hypotension during induction of anesthesia.

Inclusion Criteria:

• Patients undergoing general anesthesia induction with intravenous anesthesia using propofol and remifentanil
• Patients requiring invasive arterial blood pressure monitoring for the surgery

Exclusion Criteria:

• Refusal of consent
• Patients with heart disease (symptomatic valvular heart disease, intracardiac shunt, pulmonary hypertension with pulmonary systolic arterial pressure exceeding 40mmHg)
• FEV1 ≤ 50% predicted FEV1
• Patients with chronic renal failure
• ASA class IV, V, VI
• Systolic arterial blood pressure below 90mmHg before induction of anesthesia