Medicolegal Issues

Failure to Identify Blockage During Catheterization

An historically large verdict is awarded to a man who experienced a massive MI after being told that cardiac catheterization showed his coronary arteries were clean, normal, and free of disease.

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A 37-year-old Virginia man experienced sudden-onset chest pain, dyspnea, diaphoresis, and jaw pain. He was transported to a community hospital, where he was admitted. The patient’s ECG was read as normal, and his troponin levels were mildly elevated. This took place in January.

The next day, he was seen by a cardiologist, who recommended a stress test. Instead, the patient requested a cardiac catheterization, based on his understanding that it was the definitive test to rule out heart disease. The cardiologist consented and had the patient transferred to a regional medical center. There, the patient was seen by Dr. A., an invasive cardiologist. Two days later, Dr. A. performed a cardiac catheterization and informed the patient that his coronary arteries were clean, normal, and free of disease. Dr. A. diagnosed the patient with pericarditis, recommended treatment with NSAIDs, and discharged him home.

Over the next two months, the patient’s chest pain and dyspnea returned. He saw a nurse practitioner at his family medicine practice four times. The NP had electronic access to Dr. A.’s catheterization report and to the patient’s discharge summary. The NP continued treatment for pericarditis.

In April, the patient experienced a massive MI. He was ultimately taken back to the regional medical center, where he received care from cardiologist Dr. B. (a partner of Dr. A.’s). Dr. B. performed an emergency cardiac catheterization and identified a complete blockage of the left anterior descending artery (LAD).

After several unsuccessful attempts, Dr. B. was able to dilate the artery and place two stents to improve blood flow. Further, Dr. B. reviewed the earlier catheterization performed by Dr. A. and noted a blockage of the LAD, which he characterized as an “eccentric 70% or so stenosis very proximally.”

Following the MI, the patient was hospitalized several times and underwent eight subsequent cardiac catheterizations. He had an internal cardiac defibrillator placed and eventually required coronary artery bypass surgery. His post-MI ejection fraction was 25% to 30%, compared with 55% to 60% noted by Dr. A. after the initial cardiac catheterization. The patient was determined to be in NYHA Class II or III heart failure and was expected to require a left ventricular assist device and ultimately a heart transplant within five to six years. The patient was assessed to have a 50% 10-year mortality.

The plaintiff claimed that Dr. A.’s interpretation of the cardiac catheterization as “normal” was negligent. The plaintiff contended that a stent should have been placed and that the plaintiff should have been told he had coronary artery disease (CAD).

The defendants admitted that Dr. A. had missed a partial blockage of the LAD but maintained that the blockage was only 20% to 30%; this, they argued, was clinically insignificant and did not warrant a stent. The defendants also claimed that the diagnosis of pericarditis was reasonable and that the plaintiff’s MI was the result of an unexpected plaque rupture.

Outcome
According to a published account, a $25 million verdict was returned. Posttrial motions regarding application of state caps were pending.

Comment
This $25 million dollar verdict is believed to be the largest medical malpractice verdict in Virginia history. For several reasons, this case warrants discussion.

Here, we have a 37-year-old patient presenting with symptoms suggestive of ischemic heart disease. His catheterization was initially read as “normal,” but a second look revealed a stenotic LAD. Dr. A. informed the patient that his coronary arteries were “clean, normal, and free of disease.” Yet during trial, Dr. A. changed his position—admitting disease but insisting that the blockage was clinically insignificant at only 25% to 30%.

The patient was diagnosed and treated for pericarditis and remained symptomatic during the next two months. The patient saw his NP four times with these symptoms and continued to be treated for pericarditis.

Three months after his first presentation, he experienced a massive MI with complete occlusion of the LAD. His left ventricular function is severely impaired, and he faces a 50% chance of mortality within 10 years, even with a successful heart transplant.

The jurors in this case seem to have found the plaintiff’s expert credible. They considered Dr. B.’s reassessment that the LAD was 70% occluded both alarming and vastly at odds with his partner’s first assessment of “normal” and second assessment of “only 25% to 30% occluded.” The jurors obviously dismissed the defense theory that a 25% to 30% “clinically insignificant” plaque suddenly and unexpectedly ruptured.

The patient’s four subsequent visits to the NP could have represented an opportunity to reconsider whether the source of his pain was related to coronary flow. Admittedly, it is tempting to view an essentially negative cath report as conclusive—and I submit many of us would. But the character, quality, and location of the pain (as well as the troponin bump during the initial presentation) could have raised suspicion that the source of the pain was related to coronary flow.

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