Medical negligence cases often turn on expert opinion. But an expert opinion is only as reliable as the medical records placed before the expert. When crucial evidence is missing, even the most convincing allegation can begin to unravel.

A recent decision of the National Consumer Disputes Redressal Commission illustrates this principle with remarkable clarity.

The patient had been admitted to a private hospital with enteric fever and received intravenous fluids along with supportive treatment. After a few days, he was discharged, only to return the following day with worsening breathlessness. He was advised further investigations, including a chest X-ray, before being shifted to another hospital where, despite treatment, he later died.

The family attributed the death to negligent treatment at the first hospital.

According to the complaint, nearly fourteen bottles of intravenous glucose had been administered rapidly over four days, resulting in pulmonary oedema. It was further alleged that the treating doctors failed to recognise and treat this complication in time, forcing the patient's transfer to another hospital where his condition became irreversible.

The State Commission accepted this theory and awarded compensation after relying upon an expert opinion obtained from Maulana Azad Medical College.

When the matter reached the National Commission, however, the foundation of that opinion came under close scrutiny.

The Commission noticed a crucial omission that had escaped attention earlier. The expert committee had itself recorded that the chest X-ray films had not been supplied for examination. In fact, the report expressly stated that it was not possible to answer whether the patient had pulmonary oedema because the most important diagnostic evidence was unavailable.

That observation fundamentally altered the case.

The National Commission noted that pulmonary oedema had never been conclusively diagnosed. At best, it remained one of the differential diagnoses recorded during treatment. Equally important, there was no reliable evidence establishing that the intravenous fluids had been administered contrary to accepted medical protocols. The medical literature produced by the hospital remained substantially unrebutted, and the patient was ultimately treated elsewhere for conditions including bilateral pneumonia, septicaemia and suspected Acute Respiratory Distress Syndrome.

In these circumstances, the Commission held that the allegation linking excessive fluid administration to pulmonary oedema rested on assumption rather than proof. Once the diagnosis itself remained unestablished, the entire chain of causation alleged by the complainants became legally unsustainable.

Allowing the appeal, the National Commission set aside the compensation awarded against the hospital and its doctors.

The judgment serves as an important reminder that courts decide medical negligence on evidence, not probability. A plausible medical theory may raise suspicion, but liability cannot rest upon a diagnosis that has never been conclusively established through the very records required to prove it.

IML Insight

Expert opinion occupies a pivotal place in medico-legal adjudication, but its value depends entirely on the completeness of the material available for review. Missing imaging, incomplete records or unavailable investigation reports can significantly alter both the expert's conclusions and the court's ultimate findings.

For healthcare professionals, the lesson extends beyond good clinical practice. Preserving diagnostic records, imaging studies and contemporaneous documentation is not merely an administrative requirement. In litigation, these records often become the strongest evidence of what was known, what was suspected and, most importantly, what could actually be proved.

Source : Order pronounced by National Consumer Disputes Redressal Commission on 11th May, 2026.