Anesthesia Considerations for Geriatric Patients Undergoing TURP

Choice of Anesthetic Technique

The American Society of Anesthesiologists recommends spinal anesthesia as the preferred technique for geriatric patients undergoing TURP, as it enables early detection of TUR syndrome through preserved consciousness, while requiring dose reduction (30-50% lower than standard) and meticulous hemodynamic management to prevent hypotension and its associated complications 1.
Regional anesthesia with minimal or no sedation offers benefits including reduced hypotension, delirium, cardiorespiratory complications, and decreased opioid requirements, according to the American College of Surgeons 1, 3.

The American Geriatrics Society suggests using 30-50% lower doses than standard adult dosing due to age-related pharmacokinetic and pharmacodynamic alterations 1, 4.
Consider using low-dose intrathecal bupivacaine (<10 mg) to minimize hypotension risk, as recommended by the American Society of Regional Anesthesia and Pain Medicine 5.

The American Academy of Anesthesiologists recommends using minimal or no sedation during spinal anesthesia to avoid masking neurological changes from TUR syndrome and to preserve respiratory drive 1, 5.

Avoid simultaneous administration of spinal and general anesthesia, as this causes precipitous blood pressure drops, according to the American Heart Association 5.
Consider early arterial line placement for beat-to-beat blood pressure monitoring given the critical importance of avoiding hypotension, as suggested by the Society of Cardiovascular Anesthesiologists 5.

Implement depth of anesthesia monitoring (BIS or entropy) if general anesthesia is used to prevent relative overdose and facilitate faster emergence, as recommended by the American Society of Anesthesiologists 1, 4.
Strongly consider cerebral oxygen saturation monitoring, as desaturation >15% may indicate ischemia requiring intervention, according to the Neurocritical Care Society 5.

Patients with predicted perioperative mortality >10% should be admitted to level 2 or 3 critical care facility, as recommended by the Society of Critical Care Medicine 2, 4.
Implement multimodal opioid-sparing analgesia including paracetamol as first-line therapy, as suggested by the American Pain Society 6, 2.