Failed Spinal Anesthesia: Incidence and Associated Factors.
Aparna Bagle1, Shweta Khatri1, Runjhun Jain1
1Department of Anaesthesiology, Dr. D. Y. Patil Medical College, Hospital & Research Centre, Dr. D. Y. Patil Vidyapeeth (Deemed to be University), Pune, IND.
Cureus
|January 21, 2025
Summary
Spinal anesthesia failure occurred in 1.83% of cases, with total failures more common. Practitioner experience significantly impacts success rates, highlighting the need for enhanced training in anesthetic techniques.
Area of Science:
- Anesthesiology
- Surgical Safety
- Clinical Outcomes
Background:
- Spinal anesthesia is a common technique for various surgeries, but its failure can lead to adverse patient outcomes.
- The incidence of spinal anesthesia failure varies widely (1-17%) due to technical, anatomical, and experience-related factors.
- Understanding the specific incidence and causes of failure in a university hospital setting is crucial for improving patient care.
Purpose of the Study:
- To determine the incidence of spinal anesthesia failure.
- To identify the primary causes and contributing factors of spinal anesthesia failure.
- To analyze the impact of surgical type, urgency, and practitioner experience on spinal anesthesia failure rates.
Main Methods:
- A prospective observational study involving 3933 patients undergoing spinal anesthesia at a university hospital.
- Data collection included patient demographics, surgical details, and anesthetic techniques.
- Failed spinal anesthesia was classified as total or partial, with statistical analysis to identify contributing factors.
Main Results:
- The overall incidence of spinal anesthesia failure was 1.83% (72 out of 3933 patients).
- Total failures (87.5%) were more frequent than partial failures (12.5%).
- Higher failure rates were observed in obstetric (37.5%), orthopedic (25%), and general surgeries (22.22%), with orthopedic surgery showing the highest rate (3.46%). Emergency surgeries (3.87%) had higher failure rates than elective surgeries (1.39%). First-year residents exhibited a significantly higher failure rate (43.06%) compared to experienced practitioners.
Conclusions:
- The incidence of spinal anesthesia failure in this study was 1.83%, with total failures predominating.
- Surgical type, emergency status, and practitioner experience are significant factors influencing spinal anesthesia failure.
- Enhanced training and continuous monitoring of anesthetic techniques are essential for improving patient safety and optimizing outcomes in spinal anesthesia.
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