Internal Jugular Vein Ultrasound for Predicting Hypotension in Geriatric Patients Undergoing Spinal Anesthesia

Condition(s) studied

Investigational drug(s) / intervention(s)

Not applicable- observational study: Not applicable- observational study

Study summary

Spinal anesthesia-induced hypotension is a common and clinically significant complication in geriatric patients. Accurate preoperative assessment of intravascular volume status may help identify patients at risk. Internal jugular vein (IJV) ultrasonography is a noninvasive and easily applicable bedside method that reflects venous volume status. This prospective observational study aims to evaluate the role of preoperative IJV ultrasonographic measurements in predicting hypotension following spinal anesthesia in geriatric patients. Patients aged 65 years and older undergoing elective surgery under spinal anesthesia will be included. Preoperative IJV diameter, cross-sectional area, and collapsibility index will be measured using ultrasonography. Hemodynamic parameters will be monitored intraoperatively, and the occurrence of hypotension after spinal anesthesia will be recorded. The predictive value of IJV ultrasonographic parameters for post-spinal hypotension will be analyzed

Eligibility

Primary outcome measure(s)

• Post-spinal hypotension — From spinal anesthesia administration up to 90 minutes intraoperatively.
  Post-spinal hypotension was defined as a decrease of more than 20% in systolic blood pressure or mean arterial pressure from baseline, or an absolute mean arterial pressure \<65 mmHg following spinal anesthesia. During the operation, systolic, diastolic, and mean arterial blood pressures and heart rate were recorded immediately after spinal anesthesia (0 minute), at 3-minute intervals during the first 15 minutes, at 15-minute intervals between 15 and 60 minutes, and at 90 minutes intraoperatively. For surgeries lasting less than 90 minutes, measurements were recorded until the end of surgery.

Trial sites (1)

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