The Correlational Study of Pulse Pressure Variation in Various Tidal Volume in Mechanically Ventilated Patients Under General Anaesthesia
The Correlational Study of Pulse Pressure Variation in Various Tidal Volume in Mechanically Ventilated Patients Under General Anaesthesia
Mesquida, J et al showed there was a significant linear correlation between pulse pressure variations under tidal volume 6 ml/kg and 8 ml/kg in patients after the resuscitation phase of severe sepsis and septic shock. No study revealed the actual relationship between various PPV under different VT. So we hypothesized that there were relationship between various PPV in different tidal volume settings. The objective of this study was to examine the relationship between various PPV.
Inclusion Criteria:
scheduled for elective abdominal surgeries ASA (American Society of Anesthesiologists) I or II BMI 18-25 preoperative examination is normal
Exclusion Criteria:
acute lung injure acute respiratory distress syndrome cardiovascular diseases neurological disease renal or hepatic disease diabetes mellitus BMI less than 18 kg/m2 or greater than 25 kg/m2