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Investigation of the influence of narrowness and unusual circumstances on the CPR-quality
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.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Control | No Intervention | 10 minutes ALS-CPR in a normal environment | |
| Transport | Experimental | 10 minutes ALS-CPR during a transport |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| transport | Other | The manikin will be resuscitated during a transport in a vessel by a professional team (emergency physician / paramedic). |
|
| 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 |
| 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 |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Stefan Braunecker, MD | Contact | 0221-478-97729 | stefan.braunecker@uk-koeln.de | |
| Jochen Hinkelbein, MD | Contact | 0221-478-97729 | jochen.hinkelbein@uk-koeln.de |
| Name | Affiliation | Role |
|---|---|---|
| Stefan Braunecker, MD | University Hospital Cologne | Principal Investigator |
| Jochen Hinkelbein, MD | University Hospital Cologne | Principal Investigator |
| Jan Hilgers, MD |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Uniklinik Köln | Recruiting | Cologne | North Rhine-Westphalia | 50937 | Germany |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 41372341 | Derived | Schmitz J, Ernst C, Varghese LJK, Kerkhoff S, Jansen G, Hinkelbein J. A two-rescuer-method significantly alters CPR-quality during cardiopulmonary resuscitation in an airliner cabin - a randomized, controlled manikin trial. Sci Rep. 2025 Dec 10;15(1):43585. doi: 10.1038/s41598-025-30996-1. |
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| ID | Term |
|---|---|
| D006323 | Heart Arrest |
| ID | Term |
|---|---|
| D006331 | Heart Diseases |
| D002318 | Cardiovascular Diseases |
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| ID | Term |
|---|---|
| D036801 | Parturition |
| ID | Term |
|---|---|
| D011247 | Pregnancy |
| D012098 | Reproduction |
| D055703 | Reproductive Physiological Phenomena |
| D012101 | Reproductive and Urinary Physiological Phenomena |
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| University Hospital Cologne |
| Principal Investigator |