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

Not Applicable
Completed
Conditions
Anorectal Surgery
Anesthesia
Interventions
Procedure: Spinal Anesthesia for Anorectal Surgeries in Prone Position
Procedure: General Anesthesia Using Laryngeal Mask Airway for Anorectal Surgeries in Prone Position
Registration Number
NCT04214977
Lead Sponsor
University of Jordan
Brief Summary

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.

Detailed Description

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.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
66
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.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
group SSpinal Anesthesia for Anorectal Surgeries in Prone PositionPatients in group S had spinal anesthesia in the sitting position under complete aseptic technique through a standard mid-line approach. The patient was then asked to turn him- or herself into the prone position on the surgical table with the help of the surgical and anesthetic teams.
group LGeneral Anesthesia Using Laryngeal Mask Airway for Anorectal Surgeries in Prone PositionPatients in group L received standard general anesthesia. Proper (weight-based) classic laryngeal mask airway was then blindly inserted.
Primary Outcome Measures
NameTimeMethod
comparison was between the induction and emergence anesthesia times needed in each technique4 months

In this group (L) the investigators defined induction time (T1) as the time from completion of initial monitoring until the patient is positioned prone. Emergence time (T2) was defined as the time from the end of surgical dressing till the removal of LMA in the supine position and the patient is ready for transfer to PACU.

. In this group the investigators defined induction time (T1) as the time from the end of initial monitoring till the patient is positioned in prone position, and (T2) as the time from the end of surgical dressing till the patient is turned to supine position on the bed and ready to be transferred to PACU.

Secondary Outcome Measures
NameTimeMethod

Trial Locations

Locations (1)

Jordan University Hospital

🇯🇴

Amman, Jordan

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