Skin conductance to predict low blood pressure after spinal anesthesia in older urologic cancer patients

Is this trial a fit for you?

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

What this trial studies

This is a prospective observational protocol in which continuous skin conductance recordings will be obtained alongside standard perioperative blood pressure and heart rate measurements in geriatric patients undergoing elective urologic oncology surgery with spinal anesthesia. The study will enroll patients aged 65 and older with ASA physical status I–III who provide informed consent and will not introduce any experimental therapies beyond noninvasive monitoring. Investigators will analyze temporal correlations between changes in skin conductance and subsequent hypotension events to identify predictive patterns. Findings will determine whether skin conductance signals reliably precede spinal anesthesia–induced hypotension in this vulnerable population.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Patients aged 65 years and older
* Patients scheduled for elective urologic oncology surgery under spinal anesthesia
* American Society of Anesthesiologists (ASA) physical status I-III
* Patients who provide written informed consent to participate in the study

Exclusion Criteria:

* Refusal to participate or inability to provide informed consent
* Contraindication to spinal anesthesia (e.g., infection at puncture site, coagulopathy)
* Severe cardiac conduction abnormalities or presence of a cardiac pacemaker
* Severe autonomic dysfunction or known neuropathy affecting autonomic responses
* Use of medications that significantly affect autonomic nervous system activity
* Baseline hypotension or hemodynamic instability before spinal anesthesia
* Inability to obtain reliable skin conductance measurements (e.g., severe skin lesions at electrode placement site)

Where it's running

• Dr. Abdurrahman Yurtaslan Ankara Oncology Education and Research Hospital Clinic of Anesthesiology and Rea
  Ankara, Yenimahalle, Turkey (Türkiye) Recruiting

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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.