Comparison of the Quality of CPR by Professional Helpers (Emergency Physicians / Paramedics) During Flights

Study Overview
=================
Brief Summary
-----------------
Investigation of the influence of narrowness and unusual circumstances on the CPR-quality

Detailed Description
-----------------
Even for paramedics and emergency physicians, the resuscitation of patients with cardiac arrest remains a challenge. Previous studies have shown that the cardiac output varies widely even under normal ambient conditions. Especially the mean frequenices of cardiac compression varies from 60 to 160/min, as well as the now-flow-time. Aim of this study is to investigate how narrowness and movement during a transport affect the CPR-performance. For this, we examine the impact of the common transport options (air and ground) on the outcome-varity on a manikin. The subjects for this study are professional rescuers (emergency physicians / paramedics) who perform a 10 minute ALS-CPR in either normal circumstances (resuscitation-room) or during transportation.

Official Title
-----------------
Vergleich Der Qualität Der Kardiopulmonalen Reanimation Durch Professioneller Helfer (Notärzte / Rettungsassistenten) während Lufttransporten

Conditions
-----------------
Cardiac Arrest

Intervention / Treatment
-----------------
* Other: transport


Participation Criteria
=================
Eligibility Criteria
-----------------
Inclusion Criteria: emergency physician paramedic > 18 years < 60 years Exclusion Criteria: pregnant lay rescuers

Ages Eligible for Study
-----------------
Minimum Age: 18 Years
Maximum Age: 60 Years

Sexes Eligible for Study
-----------------
All

Accepts Healthy Volunteers
-----------------
Accepts Healthy Volunteers

Study Plan
=================
How is the study designed?
-----------------

Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| No Intervention: Control<br>10 minutes ALS-CPR in a normal environment | |
| Experimental: Transport<br>10 minutes ALS-CPR during a transport | Other: transport<br>* The manikin will be resuscitated during a transport in a vessel by a professional team (emergency physician / paramedic).<br>|

What is the study measuring?
-----------------
Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| The average achieved cardiac output | The main goal of the study is the average achieved cardiac output. Data acquisition is carried out on a resuscitation-manikin which can measure compression-rate (CR) and compression-depth (CD). The data are recorded by a computer during the CPR. To calculate the cardiac output, we multiply the average CR [1/min] with the average CD [mm] during the 10 min manikin-resuscitation. The thus obtained average cardiac-output (CO = CR x CD), measured in [mm/min], will be compared in each group. | after 10 minutes | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Now-flow-time | Second objective of the study is the time without chest-compression during the 10 minutes ALS-CPR. The now-flow-time is read out of the recorded manikin-data specify, in [min] and [sec]. As a result, the average now-flow-time in each group will be calculated and compared for each group. | after 10 minutes |