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Delayed Hospital Discharge After TAVR Increases Risk for Heart Attack, Stroke

by Colleen Fleiss on March 6, 2019 at 5:14 AM
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Delayed Hospital Discharge After TAVR Increases Risk for Heart Attack, Stroke

Stay in the hospital for more than three days puts transcatheter aortic valve replacement (TAVR) patients at an increased risk of heart attack, stroke or death after one year compared to patients discharged in less than 72 hours, stated study published today in JACC: Cardiovascular Interventions.

"We were able to analyze four years' worth of data, beginning when the registry was established in 2011, up to 2015," said lead study author Siddharth A. Wayangankar, MD, an interventional cardiologist and researcher at the University of Florida in Gainesville. "Through this work, we discovered that rates of delayed discharge have declined during this time. Delayed discharge is associated with a significant increase in mortality even after adjusting for in-hospital complications."

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Delayed discharge was defined as a discharge taking place more than 72 hours after the TAVR procedure. The analysis found that from 2011 to 2015, in a total of 24,285 patients, 55.1 percent were discharged within 72 hours, while 44.9 percent were discharged beyond 72 hours. During the study period the rate of delayed discharge declined from 62 percent to 34 percent.

Researchers said this decrease followed improvements in how the procedure is performed--including techniques, devices and clinician experience--which has contributed to better outcomes and fewer complications.
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However, some patients must stay longer than 72 hours. Researchers found patients who were over 85 years old, African American or Hispanic had a greater risk of delayed discharge. Prior mitral valve procedures, diabetes, home oxygen, severe symptomatic heart failure, atrial fibrillation, dialysis and severe kidney disease, were also independent predictors for delayed discharge. However, presence of prior intra-cardiac devices (implantable cardioverter defibrillators or pacemakers), prior bypass surgery, smokers and prior heart attack, were some of the independent predictors of early discharge. After adjusting for in-hospital complications, delayed discharge was an independent predictor of one-year all-cause mortality.

"Further work needs to be done to determine if predictors of early discharge could be utilized to develop length of stay scores," Wayangankar said. "These scores could be instrumental in administrative, financial or clinical policy development regarding delivery of TAVR procedures."

The study has several limitations. First, this study is observational in nature. Second, although there is standardization and uniformity in the TVT Registry, the data are only internally validated at sites and not centrally adjudicated. Third, the field of TAVR has rapidly changing practice standards. Finally, the one-year outcome data were driven from an administrative database, thus the outcomes might have been overestimated.

Source: Eurekalert
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