Preoperative Ultrasonographic Evaluation of the Right Common Femoral Vein Diameter for Predicting Spinal Anesthesia-induced Hypotension in Elderly Patients

Preoperative Ultrasonographic Evaluation of the Right Common Femoral Vein Diameter for Predicting Spinal Anesthesia-induced Hypotension in Elderly Patients. A Prospective Observational Study.

In this study we will determine the ability of preoperative ultrasonographic evaluation of the right common femoral vein diameter to predict spinal anesthesia-induced hypotension in elderly patients.

Inclusion Criteria:

• 65 years of age or more.
• ASA score I & II.
• Patients scheduled for surgeries under spinal anesthesia.

Exclusion Criteria:

• Negative consent.
• pre-existing hypertension
• Diabetes mellitus or autonomic neuropathy.
• Emergency operations.
• Absolute contraindications or failure to perform spinal anesthesia.