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| Name | Class |
|---|---|
| Wroclaw Medical University | OTHER |
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our aim was to quantitatively compare the quality of chest-compression of the new two thumb chest compression (nTTT) versus the current standard techniques: two finger technique (TFT), two thumb technique (TTHT) as defined by systolic-, diastolic-, mean arterial- and pulse-pressures. Our hypothesis is that nTTT generates higher arterial blood pressures compared to the established TFT and TTHT in an infant manikin model.
To simulate the scenario of infant CPR, an ALS Baby trainer manikin (Laerdal Medical, Stavanger, Norway) simulating a 3-month-old infant. The manikin was connected with a fixed-volume arterial system attached to a monitor (Draeger Infinity® Delta; Draegerwerk AG & Co. KGaA, Luebeck, Germany) via an arterial pressure transducer (Edward Lifesciences: TruWave Disposable Pressure Transducer; Irvine, CA, USA). The arterial circuit composed of a 50-mL bag of normal saline solution (air removed) attached to the manikin chest plate and connected to the transducer with a 20-gauge intravenous catheter and tubing. The manikin was placed on a high adjustable hospital stretcher. The bed was leveled to the iliac crest of each rescuer for standardization. The manikin was previously intubated and ventilation was performed using a resuscitator bag.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| the two finger chest compression technique | Experimental | Two finger technique (TFT): the pediatric thorax is compressed with the tips of two fingers and is recommended for lone rescuer during infant cardiopulmonary resuscitation by international resuscitation guidelines |
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| the two thumb chest compression technique | Experimental | Two thumb technique (TTHT): the two thumbs of the rescuer are placed over the lower third of the sternum, with the fingers encircling the torso and supporting the back. This technique is recommended for two rescuers during infant CPR by international CPR guidelines |
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| the new two thumb chest compression technique | Experimental | 'new two-thumb technique' (nTTT): this technique consists in using two thumbs directed at the angle of 90° to the chest while closing the fingers of both hands in a fist |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Cardiopulmonary resuscitation | Procedure | 2-min cycle of cardiopulmonary resuscitation accorind to the American Heart Association 2015 guidelines |
|
| Measure | Description | Time Frame |
|---|---|---|
| systolic blood pressure (SBP) | The manikin was connected with a fixed-volume arterial system attached to a monitor (Draeger Infinity® Delta; Draegerwerk AG & Co. KGaA, Luebeck, Germany) via an arterial pressure transducer (Edward Lifesciences: TruWave Disposable Pressure Transducer; Irvine, CA, USA). The arterial circuit composed of a 50-mL bag of normal saline solution (air removed) attached to the manikin chest plate and connected to the transducer with a 20-gauge intravenous catheter and tubing. | 1 day |
| Measure | Description | Time Frame |
|---|---|---|
| diastolic blood pressure (DBP) | The manikin was connected with a fixed-volume arterial system attached to a monitor (Draeger Infinity® Delta; Draegerwerk AG & Co. KGaA, Luebeck, Germany) via an arterial pressure transducer (Edward Lifesciences: TruWave Disposable Pressure Transducer; Irvine, CA, USA). The arterial circuit composed of a 50-mL bag of normal saline solution (air removed) attached to the manikin chest plate and connected to the transducer with a 20-gauge intravenous catheter and tubing. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Lukasz Szarpak, PhD | Contact | 500186225 | lukasz.szarpak@gmail.com | |
| Jacek Smereka, PhD | Contact | 601967070 | smereka@pop.pl |
| Name | Affiliation | Role |
|---|---|---|
| Lukasz Szarpak, PhD | Lazarski University | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Faculty of Medicine, Lazarski University | Recruiting | Warsaw | Masovian Voivodeship | 02-662 | Poland |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 29896467 | Background | Smereka J, Szarpak L, Ladny JR, Rodriguez-Nunez A, Ruetzler K. A Novel Method of Newborn Chest Compression: A Randomized Crossover Simulation Study. Front Pediatr. 2018 May 29;6:159. doi: 10.3389/fped.2018.00159. eCollection 2018. | |
| 29384839 | Background | Ladny JR, Smereka J, Rodriguez-Nunez A, Leung S, Ruetzler K, Szarpak L. Is there any alternative to standard chest compression techniques in infants? A randomized manikin trial of the new "2-thumb-fist" option. Medicine (Baltimore). 2018 Feb;97(5):e9386. doi: 10.1097/MD.0000000000009386. |
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Data will be available from the principal investigator
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| ID | Term |
|---|---|
| D006323 | Heart Arrest |
| ID | Term |
|---|---|
| D006331 | Heart Diseases |
| D002318 | Cardiovascular Diseases |
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| ID | Term |
|---|---|
| D016887 | Cardiopulmonary Resuscitation |
| ID | Term |
|---|---|
| D012151 | Resuscitation |
| D004638 | Emergency Treatment |
| D013812 | Therapeutics |
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study participant had no insight on the simulator or a cardio-monitor display
| 1 day |
| mean arterial pressure (MAP) | The manikin was connected with a fixed-volume arterial system attached to a monitor (Draeger Infinity® Delta; Draegerwerk AG & Co. KGaA, Luebeck, Germany) via an arterial pressure transducer (Edward Lifesciences: TruWave Disposable Pressure Transducer; Irvine, CA, USA). The arterial circuit composed of a 50-mL bag of normal saline solution (air removed) attached to the manikin chest plate and connected to the transducer with a 20-gauge intravenous catheter and tubing. | 1 day |
| 28040386 | Background | Smereka J, Szarpak L, Smereka A, Leung S, Ruetzler K. Evaluation of new two-thumb chest compression technique for infant CPR performed by novice physicians. A randomized, crossover, manikin trial. Am J Emerg Med. 2017 Apr;35(4):604-609. doi: 10.1016/j.ajem.2016.12.045. Epub 2016 Dec 19. |