Pre-operative Ultrasonographic Evaluation of Caval Aorta Diameter Index as a Predictor for Post-induction Hypotension

Pre-operative Ultrasonographic Evaluation of Caval Aorta Diameter Index as a New Predictor for Hypotension After Induction of General Anaesthesia: A Prospective Observational Cohort Study.

Comparison between ultrasound measurement of IVCD-AOd index in prediction of post induction hypo tension

This study aims to evaluate the ability of preoperative ultrasound measurements IVC to aorta diameter index to predict post-induction hypotension in comparison with ultrasound measurements of the IVC collapsibility index.

Inclusion Criteria:

• • Adult patients (>18years)

  • ASA I-II

Exclusion Criteria:

• • ASA physical status > II

  • Dyspnea
  • Systolic blood pressure ≥ 180 mmHg
  • Systolic blood pressure < 90 mmHg
  • Agitation (RASS > 1)
  • IVC non visualized
  • Epidural catheter in use
  • Patients with increased intraabdominal pressure (intrabdominal mass compressing IVC).
  • Pregnancy