Evaluating Caval Aorta Diameter in Elderly Patients Before Surgery

Preoperative Ultrasonographic Evaluation of Caval Aorta Diameter Index as a New Predictor for Hypotension After Induction of General Anesthesia in Geriatric Patients

This study is testing if measuring the size of a blood vessel in older patients before surgery can help predict low blood pressure during the procedure to keep them safer.

Quick facts

• Study type: Observational
• Enrollment: 105 (estimated)
• Ages: 60 Years to 85 Years
• Sex: All
• Sponsor: Egymedicalpedia (industry)
• Locations: 1 site (Cairo)
• Trial ID: NCT06155461 on ClinicalTrials.gov

What this trial studies

This observational study aims to assess the effectiveness of preoperative ultrasonographic evaluation of the caval aorta diameter index in predicting hypotensive events in elderly patients undergoing general anesthesia. It focuses on comparing the collapsibility index of the inferior vena cava with the aorta diameter index to identify patients at risk for intra-operative hypotension. The study seeks to enhance patient safety by optimizing fluid therapy and minimizing complications during the perioperative period. By utilizing non-invasive techniques, the research aims to improve clinical outcomes for geriatric surgical patients.

Who should consider this trial

Good fit: Ideal candidates are adults aged 60 to 85 with ASA physical status I-II scheduled for elective surgeries under general anesthesia.

Not a fit: Patients with severe comorbidities, uncontrolled hypertension, or those undergoing emergency operations may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to better management of hypotension in elderly patients during surgery, improving their safety and outcomes.

How similar studies have performed: While the collapsibility index of the inferior vena cava has been previously studied, the specific use of the aorta diameter index for predicting hypotension in this context is novel.

Eligibility criteria

Inclusion Criteria:

* Adult patients ( 60 - 85 ) years old of both sexes with American Society of Anesthesiologists (ASA) physical status I-II and scheduled for elective surgeries under general anesthesia.

Exclusion Criteria:

1. Refusal to join the study.
2. Mental and psychiatric disorders (un co-operative patients).
3. Emergency operations
4. ASA physical status \> II
5. Dyspnea, respiratory distress, un-compensated respiratory disease (generalized wheezes, defective functional capacity, peripheral O2 saturation less than 90% on room air )
6. patients with uncontrolled hypertension, Systolic blood pressure ≥ 180 mmHg
7. IVC non visualized
8. Patients with increased intra-abdominal pressure (intra-abdominal mass compressing IVC).
9. anticipated or accidental discovered difficult airway
10. patients taking angiotensin converting enzyme inhibitors or angiotensin receptors blockers, documented heart failure, elevated pulmonary arterial pressure \> 40 mmHg, significant valvular heart disease, significant carotid stenosis, peripheral vascular diseases, unstable angina or cardiac ejection fraction less than 40%, implanted pacemaker or cardioversion , known cases of abdominal aortic abnormality as aneurysm or previous operations.

Where this trial is running

Cairo

• Al-Azhar University hospitals — Cairo, Egypt (RECRUITING)

Study contacts

• Study coordinator: Mohammad Al-Bahar, M.D

Conditions: Hypotension, Geriatric Patients, Anesthesia