Which Position Is Better For CPR In OHCA Patients?

Use Transesophageal Echocardiography Comparing Head Up And Supine Cardiopulmonary Resuscitation On Cerebral And Systemic Hemodynamics In OHCA Patients

Use Transesophageal ultrasound in OHCA patients to identify the proper CPR position

Inclusion Criteria:

• Out of hospital cardiac arrest patients

Exclusion Criteria:

• DNR was signed,
• Age under 18
• Trauma patients
• Patients hard to establish advanced airway
• C spine injury patients