Spinal Anesthesia Versus General Anesthesia Using Laryngeal Mask Airway for Anorectal Surgeries in Prone Position

Spinal Anesthesia Versus General Anesthesia Using Laryngeal Mask Airway for Anorectal Surgeries in Prone Position: A Controlled Clinical Trial

Anorectal surgeries are of the commonest elective surgeries that are performed worldwide under different types of anaesthesia. The aim of this prospective interventional study was to compare the use of general anaesthesia (GA) using a laryngeal mask airway (LMA) with spinal anesthesia (SA) in anorectal surgeries.

Anorectal surgeries are of the most frequently performed procedures worldwide. These procedures are commonly performed in prone position as it offers sufficient exposure and provides enough surgical space. Choosing the suitable anesthetic technique will help in reducing perioperative complications in patients undergoing surgical procedures in prone position, by taking into consideration changes in cardiovascular and pulmonary physiology, airway management, and proper positioning for the prevention of direct and indirect pressure injuries. The aim of this prospective interventional controlled study was to compare the use of general anesthesia (GA) using a laryngeal mask airway (LMA) with spinal anesthesia (SA) in anorectal surgeries.

Inclusion Criteria:

• patients undergoing elective anorectal surgery (perianal fistula surgery, haemorrhoidectomy, perianal abscess, pilonidal sinus, anal fissure or evaluation under anaesthesia).
• patients older than 16-years old.
• patients who have ASA score I-III.
• Patients whose BMI is less than 35 kg/m2.

Exclusion Criteria:

• any patient who refused to participate in the study.
• patients with surgeries for anal or rectal tumors.
• any patient with expected surgery's duration more than 90 minutes
• patients with uncontrolled respiratory conditions
• any patient whose preoperative assessment was suggestive of possibility of difficult airway.