Article Text
Abstract
Background Patients with Takotsubo syndrome (TTS) who develop cardiogenic shock may present with left ventricular outflow tract obstruction (LVOTO). The prognosis and treatment of this population have not been defined in previous studies. The aim of this study is to describe the clinical presentation, management, evolution and prognosis of a subgroup of patients with TTS and cardiogenic shock according to whether they present with LVOTO or not.
Methods We analysed patients with TTS recruited from 2003 to 2022 in a multicentre registry. Patients were selected if they presented cardiogenic shock during their admission. This analysis was compared according to the presence or absence of LVOTO.
Results 322 patients were included, 58 (18%) of whom had LVOTO. The majority were treated with vasoactive and inotropic therapy (VIT) and its use was strongly associated with having LVOTO (77.6% vs 57.6%, p<0.001). Only five (3.3%) patients without LVOTO and two (4.4%) in the LVOTO group treated with VIT developed or worsened the obstruction. Furthermore, patients with LVOTO presented higher in-hospital complications including ventricular arrhythmias (15.5% vs 8.7%, p=0.017), major bleeding (13.8% vs 6.1%, p=0.042) and acute kidney failure (48.3% vs 28.4%, p=0.003). However, at both 90 days and 5 years, the cumulative incidence of all-cause death was not significantly different between the patients with and without LVOTO (HR 1.20, 95% CI 0.60 to 2.40 for 90 days, and HR 1.69, 95% CI 0.89 to 3.21 for 5 years).
Conclusions LVOTO is not uncommon in patients with TTS and cardiogenic shock. It is associated with a more aggressive in-hospital course and our data is unable to rule out an association between the presence of LVOTO and long-term prognosis of patients with TTS. The development or worsening of LVOTO directly related to inotropic or vasoactive support was low.
- CARDIOGENIC SHOCK
- Mitral Valve Insufficiency
Data availability statement
Data are available upon reasonable request.
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Data availability statement
Data are available upon reasonable request.
Footnotes
X @DrRaviVazirani, @auribarri
Contributors SV-S and AU wrote the statistical analysis plan, cleaned and analysed the data and drafted and revised the paper. IJN-G is the national registry coordinator and is responsible for its information. OV, MC-P, JS, MM-S, EB, MA-D, AP-C, ACM-G, MT, RV, CF-C, ADC, VMB-M, MG and JAR are local investigators and are responsible for ensuring accurate patient information at each of their centres. AU is responsible for the overall content as guarantor. All have collaborated in manuscript review.
Funding The RETAKO registry is maintained thanks to the support by a non-conditional Fundación Investigación Cardiovascular (FIC) scholarship.
Competing interests None declared.
Patient and public involvement Patients and/or the public were not involved in the design, or conduct, or reporting, or dissemination plans of this research.
Provenance and peer review Not commissioned; externally peer reviewed.
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