Abstract
Background
Transcatheter aortic valve implantation (TAVI) is a treatment option for severe symptomatic aortic stenosis in patients at increased surgical risk. Rehospitalisations following surgical aortic valve replacement are a strain on patients and society. However, data on the extent of the burden and cause of hospitalisations following TAVI are sparse.
Purpose
To examine rehospitalisations and factors associated with rehospitalisations in a one-year period following TAVI.
Methods
In this Danish nationwide observational cohort study, we identified all patients who underwent TAVI from January 2008 through June 2016 and were discharged alive by Danish nationwide health- and administrative registries. Subsequent rehospitalisations, defined as a hospital admission for at least one overnight stay, were classified as either cardiovascular or non-cardiovascular according to the discharge diagnosis codes. Factors associated with any rehospitalisation were identified using Cox regression.
Results
In total, 2,390 patients undergoing TAVI were included. The median age was 81 years (25th-75thpercentile 77–85 years of age) and men comprised 52% of the study population. Of all patients undergoing TAVI, 24% were hospitalised during the first 30 days after the procedure, while 54% were hospitalised during the first year. Among patients surviving the first year after the procedure, 25% were admitted to a hospital once, 14% were admitted twice, 8% were admitted three times, and 10% were admitted at least four times. Of all hospitalisations, 34% were due to a cardiovascular cause and 10% died during the one-year follow-up. Factors associated with any hospitalisation were chronic kidney disease (HR 1.72 [95% CI, 1.48–2.00]), peripheral vascular disease (HR 1.36 [95% CI, 1.16–1.59]), atrial fibrillation (HR 1.28 [95% CI 1.14–1.43]), ischemic heart disease (hazard ratio [HR] 1.23 [95% confidence interval [95% CI], 1.09–1.38]), and chronic obstructive pulmonary disease (HR 1.16 [95% CI, 1.02–1.33] (Figure).
Forrest plot
Conclusions
In a nationwide, all-comers cohort of patients undergoing TAVI, 57% of patients were hospitalised at least once during the first-year post-procedure and approximately one-third of all hospitalisations was due to a cardiovascular cause. Focus on patient selection and prevention of readmissions after TAVI is warranted.
Impact of chronic obstructive pulmonary disease on one year mortality after transcatheter aortic valve implantation. A substudy from the FRANCE 2 nationwide registry
