Clinical trial Recruiting at 1 site Observational Ages 18 to 65

Perfusion Index as a Predictor of Spinal Anesthesia–Induced Hypotension in Day-Case Knee Arthroscopy

Official title: Predictive Value of Baseline Perfusion Index for Spinal Anesthesia-Induced Hypotension in Healthy Patients Undergoing Knee Arthroscopy: A Prospective Observational Trial

Run by Ankara Etlik City Hospital · NCT07747441 · Data updated 2026-11-12

This study looks to see if a baseline perfusion index can predict low blood pressure after spinal anesthesia in healthy adults having knee arthroscopy.

Quick facts

Study typeObservational
Ages18 Years to 65 Years
SexAll
Enrollment150 (estimated)
SponsorAnkara Etlik City Hospital
Government
Locations1 site (Ankara, Yenimahalle\Ankara)
StatusRecruiting
StartedAugust 6, 2026
Main results expectedDecember 14, 2026
Study endsDecember 28, 2026
Registry record updatedAugust 10, 2026
Trial IDNCT07747441 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged 18–65 with ASA I–II status undergoing knee arthroscopy with spinal anesthesia.

Probably not a fit

Patients outside the 18–65 age range or with ASA III–IV, or those not undergoing knee arthroscopy with spinal anesthesia, may not benefit from this predictive approach.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This prospective observational study will measure baseline perfusion index (PI) in ASA I–II adults scheduled for day-case knee arthroscopy under spinal anesthesia. The goal is to determine whether higher PI, reflecting vasodilation and sympathetic activity, is associated with an increased risk of spinal anesthesia–induced hypotension (SAIH). Data collection will capture PI values and intraoperative blood pressure to identify potential predictive relationships. The study does not assign interventions but aims to improve risk stratification and perioperative management for patients undergoing this procedure.

Why it matters

Potential benefit: If successful, clinicians may better predict which patients are at risk for SAIH and tailor monitoring or fluid/vasopressor strategies accordingly.

How similar studies have gone: Previous research supports the idea that noninvasive perfusion metrics can relate to hemodynamic responses, though specific predictive value for SAIH in this setting is limited and exploratory.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Between the ages of 18-65
* Having an ASA Score of I-II
* Including data collection of parts that underwent knee arthroscopy

Exclusion Criteria:

* Patients under 18 and over 65 years of age
* Patients with ASA Score III and above

Where it's running

  • Ankara Etlik City Hospital
    Ankara, Yenimahalle\Ankara, Turkey (Türkiye)
    Recruiting

Study contacts

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.