Transthyretin amyloid cardiomyopathy (ATTR-CM) is a relentlessly progressive disease characterized by exercise intolerance, worsening heart failure (HF), and premature death. Although the prevalence of ATTR-CM is not well-characterized due to what are likely high rates of misdiagnosis and delayed diagnosis, estimates suggest that possibly 150,000 people in the U.S. have HF caused by ATTR-CM. Data from Europe and Asia suggest ATTR-CM is associated with a substantial burden to health care systems, but whether this translates to the U.S. has not been established. To address this knowledge gap, we sought to compare all-cause and cardiovascular (CV)-related health care resource utilization (HCRU) costs between patients with ATTR-CM and patients with non-amyloid HF in the in the U.S. using real-world medical and pharmacy claims data.
At #AHA24, we presented data from a nested case-control study of 4,751 patients with ATTR-CM who were propensity-score matched to 4,751 patients with non-amyloid HF from the Optumâ Clinformaticsâ Data Mart database (Jan. 2016-Sept. 2023) with minimum of two years of continuous enrollment. We compared all-cause and CV hospitalization rates, length of stay (LOS), days hospitalized annually per patient, total costs per hospitalization, and annual hospitalization costs between these two groups.