Relationship Between Mechanical Ventilator's Modes , Intra-Abdominal Pressure, Mechanical Power and Gastric Tube Tolerance Among Mechanically Ventilated Patients.

Relationship Between Mechanical Ventilator's Modes , Intra-Abdominal Pressure, Mechanical Power and Gastric Tube Tolerance Among Mechanically Ventilated Patients.

The study aims to:

Explore the relationship between MV modes on the IA, MP and GT tolerance among mechanically ventilated patients.

Modes of MVs by means of their differential effect on intra-thoracic pressure can have a significant influence on IAP. An ideal ventilation mode could optimize respiratory mechanics and may protect a variety of body systems functions. Among the many MV modes, SIMV, BIPAP and CPAP are the three most used modes

Inclusion Criteria:

• adult patients requiring MV in ICU

Exclusion Criteria:

• patients with abdominal or chest trauma,
• patients with intra abdominal pathologies,
• patients who had received more than 10 units of red blood cells or more than 5 liters of intravenous liquids over the last 24 h,
• patients with sepsis or hepatic, or renal dysfunction,
• patients in positions other than supine, and
• body mass index (BMI) ≥ 30 kg/m2.