Most patients spend weeks thinking about their surgeon before an operation and only a few minutes meeting their anesthesiologist. Yet the anesthesia team controls some of the most critical parts of surgery, including breathing, heart rate, oxygen levels, and how deeply a patient stays asleep.
When anesthesia goes as planned, patients rarely think about it again. When something goes wrong, the effects can be sudden and severe, and families are often left with no clear explanation of what happened in the operating room or what they can do next.
Quick Answer: When an anesthesiologist makes a mistake during surgery, the patient can suffer injuries ranging from nerve damage to brain injury or death. If the error fell below the accepted standard of care, the patient or family may have a medical malpractice claim. In Illinois, these claims require an expert review and generally must be filed within two years of discovering the injury.

What Does an Anesthesiologist Do During Surgery?
An anesthesiologist reviews the patient’s history before surgery, selects the type and dose of anesthesia, places or supervises the breathing tube, and monitors vital signs throughout the procedure. After surgery, the team oversees the patient’s recovery as the anesthesia wears off.
Many hospitals use a care team that includes nurse anesthetists working under an anesthesiologist’s direction. That shared responsibility means errors can involve more than one provider, and handoffs between anesthesia providers are a known point where important details can be missed.
What Are the Most Common Anesthesia Errors?
Anesthesia mistakes usually happen during preparation, monitoring, or response to complications. Some of the most frequent problems include:
- Giving too much or too little anesthesia, similar to other medication dosage errors in hospitals.
- Failing to review allergies, medications, or conditions like sleep apnea before surgery.
- Improperly placing a breathing tube, including intubating the esophagus instead of the airway.
- Failing to monitor oxygen levels, blood pressure, and heart rhythm closely.
- Responding too slowly to warning signs, such as a drop in oxygen or a dangerous reaction.
Not every bad outcome is malpractice. Anesthesia carries real risks even when providers do everything right, so the key question is whether the care met the accepted standard.
What Injuries Can Anesthesia Mistakes Cause?
The most serious anesthesia injuries usually involve a loss of oxygen. Even a few minutes without enough oxygen can cause permanent brain damage, and some patients never fully recover.
Other injuries include damage to teeth, lips, or the throat from a difficult intubation, nerve damage from poor positioning during long procedures, aspiration pneumonia when stomach contents enter the lungs, and severe allergic reactions. Some patients experience anesthesia awareness, where they become conscious during surgery, which can lead to lasting psychological trauma.
In the worst cases, an anesthesia error can cause a heart attack, stroke, or death, which is why anesthesiology errors are among the most serious forms of surgical malpractice.
When Does an Anesthesia Error Become Medical Malpractice?
A malpractice claim requires more than a poor result. The patient must show that the provider owed a duty of care, failed to meet the standard a reasonably careful anesthesia provider would follow, and that this failure caused the injury and resulting losses.
These cases rely heavily on medical records and expert testimony. Anesthesia records track vital signs and medications minute by minute, so they often show exactly when a problem began and how the team responded.
Who Can Be Held Responsible for an Anesthesia Mistake?
Depending on the facts, responsibility may fall on the anesthesiologist, a nurse anesthetist, or another member of the surgical team. Anesthesia groups that employ these providers may also be liable.
Hospitals can share responsibility too, whether through their own failures, such as poor staffing or broken equipment, or because of how the provider was presented to the patient. Understanding when a hospital is responsible for a doctor’s malpractice is often a key part of these cases.
What Should You Do If You Suspect an Anesthesia Error?
Start by asking for a clear explanation from the care team and requesting copies of all medical records, including the anesthesia record, surgical notes, and recovery room notes. Keep a written timeline of symptoms and conversations while they are fresh.
Continue all recommended treatment and avoid signing documents or settlement offers from the hospital or insurer before getting legal advice. The steps to take if you were injured in surgery are similar whether the error involved the surgeon or the anesthesia team.
How Long Do You Have to File an Anesthesia Malpractice Claim in Illinois?
Illinois generally requires medical malpractice lawsuits to be filed within two years of when the patient knew or reasonably should have known about the injury and its possible cause. Most claims are also subject to an outer limit of four years from the date of the error, with different rules for minors.
Illinois also requires a written report from a qualified health care professional stating that the claim has merit, filed with or shortly after the complaint. Because that review takes time, it is wise to learn about the statute of limitations for medical malpractice early rather than close to the deadline.
Frequently Asked Questions
Can you sue an anesthesiologist for malpractice?
Yes, if the anesthesiologist failed to meet the accepted standard of care and that failure caused an injury. The claim must be supported by a qualified medical expert. The hospital or anesthesia group may also be included in the case.
What is the most serious type of anesthesia error?
Errors that cut off oxygen to the brain, such as a misplaced breathing tube or missed drop in oxygen levels, are among the most serious. They can cause permanent brain injury or death within minutes.
Is waking up during surgery malpractice?
Anesthesia awareness can be malpractice when it results from an improper dose, equipment failure, or poor monitoring. Each case depends on what caused it and whether the anesthesia team followed accepted practices.
How do I know if my injury was caused by anesthesia?
Signs can include unexplained breathing problems, confusion, nerve pain, dental or throat injuries, or a sudden change in condition after surgery. Reviewing the anesthesia record with a medical expert is usually the only way to confirm the cause.
Is there a cap on medical malpractice damages in Illinois?
No. The Illinois Supreme Court struck down the state’s cap on non-economic damages in medical malpractice cases in 2010. Compensation depends on the injuries and losses proven in each case.
Conclusion
When an anesthesiologist makes a mistake during surgery, the consequences can range from temporary harm to permanent brain injury or death. Patients and families who suspect an error should secure the medical records, get answers, and act within Illinois deadlines. This article is general information, not legal advice.
The Deratany Law Firm handles medical malpractice cases involving anesthesia errors, hospital negligence, and surgical injuries throughout Illinois. If you believe an anesthesia mistake harmed you or a loved one, contact the firm for a free consultation to review what happened.
