Comparison of Two Sitting Durations During Saddle Anesthesia on Discharge Readiness in Perianal Surgery
Comparison of Two Sitting Durations During Saddle Anesthesia on Discharge Readiness in Perianal Surgery: A Randomized Controlled Trial
Cairo University
62 participants
Mar 15, 2026
INTERVENTIONAL
Conditions
Summary
Most minor perianal surgeries are performed as day-case procedures requiring rapid recovery and effective symptom control. Saddle block anesthesia (SBA) provides reliable perineal anesthesia with minimal hemodynamic and motor effects, promoting faster recovery than general anesthesia. However, the duration of sitting after intrathecal injection influences anesthetic spread, and the optimal sitting time to balance adequate anesthesia with early discharge remains unclear.
Eligibility
Inclusion Criteria1
- Adult patients (21-65 years), ASA I-III undergoing perianal surgery.
Exclusion Criteria4
- Severe cardiac morbidities (impaired contractility with ejection fraction \< 40%, heart block, arrhythmias, tight valvular lesions)
- Contraindication to neuraxial anesthesia such as coagulopathy and local infection
- Pregnant or lactating women,
- Allergy of any of the study drugs
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Interventions
Patients will remain seated for 5 min after local anesthetic injection
Patients will remain seated for 8 min after local anesthetic injection
Locations(1)
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NCT07466121