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Underweight People May Be at Greater Risk for Post-Surgery Death

(HealthDay News) Thin people appear to have a higher risk of dying within 30 days of an operation than heavier people, researchers have found.
The reason for the finding isn't clear, the study authors said. They set out to see what effect obesity had on survival after surgery, but instead found that the thinner a patient was, the greater the risk of death. The measurement the investigators used was body mass index (BMI), which takes into account both height and weight…
Commenting on the study, Dr. Nestor de la Cruz-Munoz … at the University of Miami … said that he was not surprised by the finding…
"A lot of these patients are malnourished -- maybe cancer patients, patients undergoing treatment for other medical problems. A lot of time these patients don't have the defenses to do well with a major surgery," he said. "These patients are not your skinny young girl, but more like a frail 80-year-old woman."
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