Having A Big Heart Does Matter

Research conducted by scientists at the University of Maryland and University of Iowa School of Medicine proved that patients receiving heart size too small for their bodies have lower survival rates after the transplant.

Scientists carefully reviewed surgery records of transplant patients and heart donors over a 22 year period to propose new ways of Heart sizematching up heart transplants and its outcome. Through analysis of heart size matching, gender, body weight and predicted heart mass, the risk of death after transplant is evaluated.

Dr. Robert Reed, one of the study authors, said males who were recipients of women’s heart were in more risk of complication and death due to the size difference of the organ. In fact, there is a 25% chance of death for those who received hearts that are too small for their body size.

However, Dr. Reed emphasized that a person’s weight doesn’t necessarily match his / her heart size, but sex and height do. In general, the female heart is smaller compared to that of a man’s heart with the same body weight.

When a patient receives a heart transplant too small for his / her size, the organ will work harder and strain itself, while growing big in size due to inflammation. Hopefully with this new study, doctors and surgeons can improve heart pairing for lesser risk and complications for patients.

Journal Reference:

  1. Robert M. Reed, Giora Netzer, Lawrence Hunsicker, Braxton D. Mitchell, Keshava Rajagopal, Steven Scharf, Michael Eberlein. Cardiac Size and Sex Matching in Heart TransplantationJACC: Heart Failure, 2014; DOI:10.1016/j.jchf.2013.09.005
Randy Clare

Randy Clare

Randy Clare brings to The Sleep and Respiratory Scholar more than 25 years of extensive knowledge and experience in the sleep and pulmonary function field. He has held numerous management positions throughout his career and has demonstrated a unique view of the alternate care diagnostic and therapy model. He is considered by many an expert in the use of oral appliances like Silent Nite, EMA and TAP to treat snoring and sleep apnea in the dental office. Mr. Clare's extensive sleep industry experience assists Sleepandrespiratoryscholar in providing current, relevant, data-proven information on sleep diagnostics and sleep therapies that are effective for the treatment of sleep disorders. Mr Clare is director of business development for Glidewell a dental solutions company his focus is on dental treatment for sleep disordered breathing.

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