The investigators' hypothesis is that patients with apical ballooning syndrome (ABS) will manifest a personality profile that differs than that of a population of similar range of ethnic and socioeconomic status.

Inclusion criteria:

1. Patients who have suffered with ABS
2. Adults (18 years or older)
3. Able to read English at a 6th grade level (questionnaires are self-administered and written in English)

Exclusion criteria:

1. Have withdrawn from the registry
2. Have died

This study will be conducted among participants in the Mayo Clinic Apical Ballooning Registry. These patients were prospectively diagnosed with Apical Ballooning Syndrome at the time of presentation with their acute illness, and consented to participation in a registry. They are residents of Olmsted County, and the surrounding regions for which the Mayo Clinic serves as a tertiary care center. Enrollment in the registry requires satisfaction of standard criteria for the diagnosis of ABS and includes the administration of a standardized questionnaire. Subjects have agreed to participate in yearly follow up questionnaires about their health status.