Case guide

UPDATED FEB 2026

Anesthesia Errors Malpractice

Part of the Medical Malpractice investigation

The short answer

Anesthesia errors — from allergic reaction management failures to dosage miscalculations and anesthesia awareness — can cause permanent brain damage, cardiac arrest, and death even in otherwise healthy surgical patients. Anesthesiologists and CRNAs are held to rigorous standards of pre-operative assessment and intraoperative monitoring.

People's Justice Research TeamUpdated February 20, 2026Fact-checked

Verified against court and regulatory records · No upfront fees · Your information is never sold

Free Case Review

Check your eligibility — free

Answer 2-3 quick questions to review your potential case.

Free · Confidential · About 2 minutes · A case specialist responds within 1 business day

Your answers are never sold or shared without your consent.

Types of Anesthesia Malpractice

Pre-operative failures include inadequate patient history review (failing to identify known allergies, medications, prior anesthesia complications), failure to obtain informed consent for the type of anesthesia used, and failure to order appropriate pre-operative testing for high-risk patients. Intraoperative failures include dosage calculation errors (particularly dangerous in pediatric patients where weight-based dosing requires precise calculation), failure to monitor oxygen saturation and end-tidal CO2 continuously, delay in recognizing and treating adverse events including anaphylaxis, laryngospasm, bronchospasm, and malignant hyperthermia, and failure to maintain an adequate airway.

Anesthesia Awareness

Anesthesia awareness — intraoperative awareness with recall — occurs when a patient regains consciousness during general anesthesia but cannot move or communicate due to neuromuscular blocking agents. The patient experiences the sensations of surgery (pain, pressure, sound) while paralyzed. Estimates suggest awareness occurs in approximately 1 to 2 per 1,000 general anesthesia cases. When caused by inadequate anesthetic depth monitoring or failure to use available monitoring technology (BIS monitoring), awareness is malpractice. Survivors frequently develop PTSD and require long-term psychological treatment.

Malignant Hyperthermia and Other Anesthesia Emergencies

Malignant hyperthermia is a rare but potentially fatal reaction to certain volatile anesthetic agents in genetically susceptible patients. The standard of care requires that all operating rooms maintain dantrolene — the antidote — immediately available. Failure to stock dantrolene or delays in its administration when malignant hyperthermia is suspected can be fatal and constitutes clear negligence. Local anesthetic systemic toxicity (LAST) — a potentially fatal complication of regional anesthesia when local anesthetic is inadvertently injected intravascularly — requires immediate treatment with lipid emulsion therapy, which must also be immediately available in any setting where regional anesthesia is administered.

Key data

Data & Statistics

2 SOURCED FIGURES

Anesthesia errors account for approximately 2.5% of all malpractice claims but produce disproportionately high-value settlements

PIAA Data Sharing Project

Anesthesia awareness occurs in approximately 1-2 per 1,000 general anesthesia cases

American Society of Anesthesiologists (ASA)

FAQ

Frequently Asked Questions

12 QUESTIONS

Medical malpractice occurs when a healthcare provider — physician, surgeon, nurse, hospital, or other licensed provider — deviates from the accepted standard of care and that deviation causes preventable harm to a patient. The standard of care is defined as what a reasonably competent provider in the same specialty would have done under the same or similar circumstances. Malpractice is not simply a bad outcome — medicine involves inherent risks, and a patient can suffer a serious complication even with perfectly delivered care. To be malpractice, the provider must have acted negligently: doing something a competent provider would not have done, or failing to do something a competent provider would have done.

Dive deeper

Related Guides

24 GUIDES

The full investigation

Part of the Medical Malpractice Investigation