What triggers intraoperative blood pressure/heart rate surges and postoperative hypertonia during unilateral biportal endoscopy?

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30 Oct 2026 0 comments

CONCLUSIONS: This case suggests that an occult dural tear during UBE with large-volume irrigation may produce a paradoxical hemodynamic profile of progressive, therapy-resistant hypertension and tachycardia - contrasting with the bradycardia and hypotension classically associated with intracranial hypotension from cerebrospinal fluid leaks. The triad of (i) progressive, treatment-refractory hypertension and tachycardia, (ii) prolonged UBE duration (> 2 h), and (iii) large-volume irrigation (> 20...