Background: The role of age in the short- and long-term prognosis of takotsubo syndrome (TTS) is controversial. The aim of the present study was to evaluate age-related differences and prognostic implications among patients with TTS.
Methods And Results: In total, 2492 consecutive patients with TTS enrolled in an international registry were stratified into 4 groups (<45, 45-64, 65-74, and ≥75 years). The median long-term follow-up was 480 days (interquartile range, 83-1510 days). The primary outcome was all-cause mortality (in-hospital and out-of-hospital mortality). The secondary end point was TTS-related in-hospital complications. Among the 2479 patients, 58 (2.3%) were aged <45 years, 625 (25.1%) were aged 45 to 64 years, 733 (29.4%) were aged 65 to 74 years, and 1063 (42.6%) were aged ≥75 years. Young patients (<45 years) had a higher prevalence of men (from youngest to oldest, 24.1% versus 12.6% versus 9.7% versus 11.4%; <0.01), physical triggers (46.6% versus 27.5%, 33.9%, and 38.4%; <0.01), and non-apical forms of TTS (25.9% versus 23.7%, 12.7%, and 9%; <0.01) than those aged 45 to 64, 65 to 74, and ≥75 years. During hospitalization, young patients experienced a higher rate of in-hospital complications (32.8% versus 23.4%, 27.4%, and 31.9%; =0.01), but in-hospital mortality was higher in the older group (0%, 1.6%, 2.9%, and 5%; =0.001). Long-term all-cause mortality was significantly higher in the older cohort (5.6%, 6.4%, 11.3%, and 22.3%; log-rank <0.001), as was long-term cardiovascular mortality (0%, 0.9%, 1.9%, and 3.2%; log-rank =0.01).
Conclusions: Young patients with TTS have a typical phenotype characterized by a higher prevalence of male sex, non-apical ballooning patterns, and in-hospital complications. However, in-hospital and long-term mortality are significantly lower in young patients with TTS.
Registration: URL: https://classic.clinicaltrials.gov/ct2/show/NCT04361994. Unique identifier: NCT04361994.
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| http://dx.doi.org/10.1161/JAHA.123.030623 | DOI Listing |
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