What happens if an anaesthesia error causes harm in Malaysia?

Most anaesthetics go smoothly. When something goes wrong, the consequences can be serious: brain injury from lack of oxygen, nerve damage, dental injury during intubation, awareness during surgery, or death. Families are often told it was "a reaction" or "a rare complication" and left unsure whether to accept that. This guide explains how anaesthesia cases are looked at, written by a lawyer who worked as a medical officer before practising law.

What does an anaesthetist have to do?

In broad terms, the anaesthetist is responsible for keeping you safe while you cannot protect yourself. That usually covers:

• pre-operative assessment: medical history, allergies, previous anaesthetic problems, fasting status, airway examination and relevant tests;
• planning: choosing general, regional or local anaesthesia and the drugs and doses;
• consent: explaining the material risks of the anaesthetic, which is separate from the surgeon's explanation of the operation;
• airway management: securing and checking the airway, with a plan for difficult intubation;
• monitoring: oxygen levels, heart rate, blood pressure, breathing and carbon dioxide throughout;
• recovery: safe hand-over to recovery staff and clear criteria for discharge to the ward.

Which problems can point to negligence?

Each case depends on its facts, but the questions experts commonly ask include:

1. Was a known allergy or previous reaction recorded but missed?
2. Was a difficult airway foreseeable from the assessment, and was there a plan?
3. Was the tube placed in the wrong position and not detected in time?
4. Were alarms or falling oxygen levels not acted on promptly?
5. Was the wrong drug or dose given?
6. Was the patient left unmonitored in recovery?
7. Did a spinal or epidural cause injury because of poor technique or a missed warning sign?

Is every anaesthetic complication negligence?

No. Some events happen even with excellent care: rare drug reactions, unexpected anatomy, or sudden collapse in a patient with an undiagnosed condition. Malaysian courts generally judge doctors against the standard of a reasonably competent practitioner in that field, and on diagnosis and treatment the Federal Court in Zulhasnimar confirmed the Bolam test as qualified by Bolitho. Our explainer on complication versus negligence covers this in more depth.

Consent is treated differently. Since Foo Fio Na v Dr Soo Fook Mun (Federal Court, 2007), the question is whether the patient was told of the material risks. If a risk you would have wanted to know about was never mentioned, that may be a separate complaint. See our guide on informed consent.

Have a question about your own situation? Ask on WhatsApp

Which records matter most?

The anaesthetic chart is usually the single most important document. It records drugs, doses, times, monitoring readings and events minute by minute. Ask for full copies of:

• the pre-anaesthetic assessment form;
• the anaesthetic consent form;
• the intra-operative anaesthetic chart and any monitor print-outs;
• the recovery room chart;
• drug charts and the operation note;
• ICU notes if you were transferred;
• any incident report reference (the hospital may decline to release the report itself, but asking is reasonable).

Our step-by-step guide explains how to request medical records.

Who is responsible: the anaesthetist or the hospital?

The anaesthetist is personally responsible for their own care. Whether the hospital is also liable depends on the arrangement. A hospital is generally liable for employees. For doctors who are independent contractors, the Federal Court in Dr Kok Choong Seng (2018) accepted that a private hospital may owe a non-delegable duty in some circumstances, and in Dr Hari Krishnan (2018) the Federal Court held the hospital liable for the anaesthetist's negligence on the facts of that case, where the hospital had provided the anaesthetic service. Every case turns on its own facts.

What should I do now?

1. Get the medical care you need, including rehabilitation.
2. Write a dated timeline: what you were told before surgery, who you met, and what happened afterwards.
3. Ask family members who were present to write their own notes.
4. Request the complete records, especially the anaesthetic chart.
5. Keep bills, receipts and evidence of time off work.
6. Avoid signing settlement or waiver documents before getting advice.

Common mistakes: relying only on the hospital's summary report, waiting months before asking for records, and assuming that a consent form you signed prevents any claim. A signed form is evidence that consent was discussed; it does not decide whether the information given was adequate or whether the anaesthetic itself was performed with reasonable care.

When to speak to a lawyer

Speak to a lawyer if there was a serious unexpected injury, if explanations are inconsistent, or if records are being withheld. Independent review by an anaesthetist is usually needed, and a lawyer with medical training can frame the right questions for that expert. You can contact us for an initial discussion; every case depends on its facts.

Frequently asked questions

I woke up during surgery. Is that negligence?

Awareness under anaesthesia is uncommon and can happen without fault, but it may also follow from inadequate dosing or monitoring. The anaesthetic chart and expert review are needed to tell.

My tooth was broken during intubation. Can I claim?

Dental injury is a recognised risk of intubation. Whether it is negligent depends on the assessment, the technique and whether the risk was explained. The amount involved also affects whether a claim is practical.

Is the surgeon responsible for anaesthetic errors?

Usually the anaesthetist is responsible for the anaesthetic. The surgeon and hospital may have their own responsibilities depending on what happened.

Does a signed consent form stop me from suing?

No. It shows consent was discussed, but the court looks at whether material risks were explained and whether the care itself was reasonable.

How long do I have to make a claim?

There are strict time limits under Malaysian law. Seek advice early; see our guide on the limitation period.

Sources & fact check

Legal points in this article were checked against the primary sources below. The law can change; this is general information, not legal advice.

1. Zulhasnimar bt Hasan Basri & Anor v Dr Kuppu Velumani P & Ors [2017] 5 MLJ 438 (Federal Court) (reported judgment)
2. Foo Fio Na v Dr Soo Fook Mun & Anor [2007] 1 MLJ 593 (Federal Court) (reported judgment)
3. Dr Hari Krishnan & Anor v Megat Noor Ishak bin Megat Ibrahim & Anor [2018] 3 MLJ 281 (Federal Court) (reported judgment)
4. Dr Kok Choong Seng & Anor v Soo Cheng Lin [2018] 1 MLJ 685 (Federal Court) (reported judgment)
5. Laws of Malaysia Online, Attorney General's Chambers (official text of Acts)

Fact-checked on 17 Oct 2026