Being in the lowest income quintile was associated with an increased risk of 1-year readmission after Takotsubo syndrome compared to the highest quintile (HR 1.64; 95% CI 1.01-2.69).
Does socioeconomic disadvantage increase the risk of readmission in patients with Takotsubo syndrome?
Socioeconomic disadvantage significantly increases the risk of 1-year readmission in patients with Takotsubo syndrome, highlighting the need for holistic, multidisciplinary care and social risk assessment post-discharge.
Hazard Ratio: 1.64 (95% CI 1.01–2.69)
Refining the medical nomenclature from Takotsubo cardiomyopathy to Takotsubo syndrome (TTS) around a decade ago mirrors a broader understanding of this complex medical condition. Accordingly, research has increasingly focused on non-cardiac issues such as the brain-heart axis 1, 2 and on long-term outcomes including the role of gender, comorbidity burden, socioeconomic profile and psychological distress 3.It seems fair to state that diagnosis, immediate (often intensive) care and awareness for comorbidities in patients suffering from an acute TTS event have improved. However, there is an unmet need for a more holistic care after the patient’s discharge from the hospital, which usually happens within 3–5 days following admission.Indeed, rehospitalization rates remain significant within the first 12 months, as clearly demonstrated in the nation-wide analysis of real-world data from Denmark by Pernille Palm and co-workers from the Copenhagen University Hospital Rigshospitalet 4.The most relevant new finding of the study by Palm et al. 4 is the impact of socioeconomic status on clinical outcomes, in particular the rehospitalization rate. Among 1,022 TTS patients identified through the Danish National Patient Registry between 2008 and 2018, 36% were readmitted within the first year – a rate significantly higher than the 4% observed in the matched general population, though lower than the 44% seen in the myocardial infarction cohort.The digitized, unfragmented Danish healthcare system allows to account for otherwise hardly assessed factors such as basic education, low income, and incapacity pension. Notably, patients in the lowest income quintile had a hazard ratio (HR) of 1.64 (95% CI 1.01–2.69) for readmission compared to those in the highest quintile, and those with only basic education demonstrated a HR of 2.01 (95% CI 1.37–2.99) 4. These findings resonate with data from the USA, where Jang and colleagues demonstrated that low family income and restricted access to public healthcare services were associated with increased 30-day readmission rates after TTS 5.Similarly, Shah et al. 6 reported a 10.3% 1-month readmission rate among 5,997 TTS patients, with cardiac etiologies (notably heart failure) accounting for approximately 26% of readmissions and comorbidity burden – reflected by a higher Charlson Comorbidity Index – being a strong predictor. The Danish study extends these findings by demonstrating that the socioeconomic gradient persists even within a universal healthcare system where financial barriers to care are largely eliminated.The concept of syndemic interaction is particularly pertinent here: socioeconomic disadvantage and TTS do not merely coexist but mutually reinforce each other’s adverse health consequences. Living alone, which affected approximately 40% of the TTS cohort, served as a proxy for reduced social support and was independently associated with readmission (HR 1.28, 95% CI 1.03–1.56). This observation aligns with Duong et al. 7 analysis of over 200,000 TTS hospitalizations in the US National Inpatient Sample, which revealed that racial minorities – who disproportionately bear the burden of socioeconomic disadvantage – presented with higher comorbidity burden, lower median household income, and experienced longer hospital stays.TTS patients have been clustered according to their predominant comorbidities using latent class analysis: a metabolic disease cluster (39.4%; with the lowest in-hospital mortality of 1.0%), a COPD and smoking cluster (14.0%; with the poorest overall outcomes, including an in-hospital mortality of 3.4% and a high prevalence of acute respiratory failure of 23.4%), a psychiatric disorder cluster (11.8%; with the lowest incidence of cardiac arrest of 0.3% but extremely high rates of anxiety and depression), and a minimal risk factor cluster (34.8%; with the highest incidence of cardiac arrest of 2.6%) 8. The Danish study adds an important dimension to this phenotypic landscape by demonstrating that comorbidity burden – as measured by the Charlson Comorbidity Index – appears to mediate part of the association between socioeconomic disadvantage and readmission. When additionally adjusting for the Charlson Comorbidity Index, the effect estimates for income were attenuated and the lowest quintile lost statistical significance (HR 1.57, 95% CI 0.97–2.57) 4.It seems worthy to incorporate into these clusters as well poorer health literacy, higher stress levels, and overall decreased quality of life. The InterTAK Registry shows us that TTS carries a substantial long-term disease burden with 1-year mortality rates between 4% and 7% and recurrence rates of nearly 2% per patient-year 9, 10. The interplay between comorbidity burden and socioeconomic vulnerability likely creates a devious cycle in which disadvantaged patients accumulate chronic conditions that predispose them to the initial Takotsubo event and subsequent readmissions.Life, health, and well-being are profoundly affected by TTS. Analogous to optimal care after an acute coronary syndrome, TTS patients should take part in a specific form of rehabilitation based on an integrated and multidisciplinary approach. Improved exercise capacity may have benefits similar to those observed after myocardial infarction, but clearly, more data are needed. Psychological support to treat anxiety and depression will most likely include both cognitive behavioral therapy and stress reduction techniques (meditation, yoga), whereas drug therapy must be used with caution, as most TTS events come along with marked QTc prolongation. Patients with severe depression or suicide risk obviously must promptly be referred for specialist care.The study by Palm et al. 4 provides compelling evidence that care pathways for TTS patients must also integrate social risk assessment. The observation that most readmissions occurred within the first 2 months after discharge suggests that early, targeted interventions during this critical window could yield the greatest benefit. Screening for socioeconomic vulnerability at discharge and connecting patients with social support services, community resources, and structured follow-up programs might mitigate some of the observed disparities.Whereas social isolation and loneliness are becoming one of the most relevant and still underrecognized health threats to be addressed by the whole society, we as physicians need to bridge professions and remove the siloes of knowledge. We need to change medical training and adapt the reimbursement pathways in order to redesign a patient-centered transdisciplinary ecosystem. The work by Palm and colleagues reminds us that even in a healthcare system as equitable as Denmark’s, socioeconomic inequalities leave their mark on clinical outcomes – and that TTS, far from being a benign and transient entity, demands sustained, holistic attention long after the acute event has resolved.The authors have no conflicts of interest to declare.This study was not supported by any sponsor or funder.T.B.: writing – original draft and literature review. W.D.: conceptualization, writing – review and editing, and supervision.
Tugrul et al. (Fri,) conducted a editorial in Takotsubo syndrome (n=1,022). Lowest income quintile vs. Highest income quintile was evaluated on Readmission within the first year (HR 1.64, 95% CI 1.01-2.69). Being in the lowest income quintile was associated with an increased risk of 1-year readmission after Takotsubo syndrome compared to the highest quintile (HR 1.64; 95% CI 1.01-2.69).
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