The Role of Stress in Cardiac Arrest (Cortizol CPR)

The aim of this study is to assess long-term stress in patients after an out-of-hospital cardiac arrest. To do this, we will measure levels of the stress hormone cortisol in hair samples. Cortisol is produced in larger amounts during periods of ongoing stress and builds up in the hair as it grows. Because hair grows about 1 cm per month, a 3 cm hair sample can show your average stress level over the past three months. The results will be compared with anonymized information from your medical records and the care you received before and during your hospital stay.

NCT Number	NCT07285915
Lead Sponsor	University Hospital Pilsen
Conditions	Chronic Stress, Cardiac Arrest (CA), Post-Resuscitation Syndrome, Heart Attack
Enrollment	136 participants
Start Date	2026-01-08
Primary Completion	2027-07-31 (estimated)
Study Completion	2027-10-31 (estimated)
Updated on ClinicalTrials.gov	2026-05-01