The Schmitz-Hinkelbein Method. A New Technique for CPR in Space.

Cardiac Arrest Clinical Trial

Official title:

The Schmitz-Hinkelbein Method. A New Method for the Performance of External Chest Compressions During Microgravity.

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04354883
• Other study ID #: 19-1069_1
• Status: Completed
• Phase: N/A
• Start date: January 2, 2020
• Est. completion date: April 1, 2020

Study information

• Verified date: April 2020
• Source: Universitätsklinikum Köln
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The risk of a severe medical event during long-duration spaceflight is significant and can endanger both the whole mission and crew. There is a certain risk for a cardiac arrest in space requiring cardiopulmonary resuscitation (CPR). So far, 5 known techniques to perform CPR in microgravity have been reported.

The aim of the present study was to describe and gather data for two new CPR techniques useful in microgravity.

Description:

The risk of a severe medical event during long-duration spaceflight is significant and can endanger both the whole mission and crew. There is a certain risk for a cardiac arrest in space requiring cardiopulmonary resuscitation (CPR). So far, 5 known techniques to perform CPR in microgravity have been reported.

The aim of the present study was to describe and gather data for two new CPR techniques useful in microgravity.

The investigators conducted a randomized controlled manikin trial and asked 15 participants with valid diving-license to resuscitate a manikin in two different techniques of CPR in a free-floating position underwater. The first technique, (Schmitz-Hinkelbein-Method) is similar to conventional CPR, with the patient in a supine position on the performer's knees for stabilization. The second technique (Hinkelbein-Schmitz-Method) is similar to the first, but chest compressions are conducted with the elbow.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 15
• Est. completion date: April 1, 2020
• Est. primary completion date: March 30, 2020
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• Valid diving-license(SSI - Open Water Diver (OWD), CMAS *, PADI Open Water Diver, ISO 24801-2 (Autonomous Diver), NAUI Scuba Diver or equal license

• German EMT-qualification

Exclusion Criteria:

• any acute or chronic ENT illness/injury

• no valid diving/EMT license

Related Conditions & MeSH terms

• Cardiac Arrest
• Heart Arrest

Intervention

Procedure:
• External Chest Compressions on Manikin in Underwater Setting
Two different methods of CPR in an analogue model of mircogravity

Locations

Country	Name	City	State
Germany	University Hospital of Cologne	Cologne	Northrhine-Westphalia

Sponsors (1)

Lead Sponsor	Collaborator
Universitätsklinikum Köln

Country where clinical trial is conducted

Germany, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	total number of chest compressions	defined as >2 cm of compression depth	60 seconds video clip with afterwards evaluation
Primary	number of correct chest compressions	defined as 50-60 mm of depth	60 seconds video clip with afterwards evaluation
Primary	compression rate	defined as any compression of the thorax	60 seconds video clip with afterwards evaluation
Primary	correct compression rate	defined as 100-120 compressions min-1	60 seconds video clip with afterwards evaluation
Primary	depth rate	defined as 50-60 mm of depth	60 seconds video clip with afterwards evaluation
Secondary	no-flow-time	time without effective compression after the onset of chest compressions	60 seconds video clip with afterwards evaluation
Secondary	thorax release	correct thorax release after compression	60 seconds video clip with afterwards evaluation
Secondary	Self-Satisfaction-Score	Depth Frequency Feasibility Exhaustion All in All Quality	60 Seconds, Questionnaire filled out by participants after dive