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Clinical Trial Summary

This protocol is a prospective interventional pilot study at the Children's Hospital of Philadelphia to determine whether or not two increments of sternal pressure known to occur during "leaning" in CPR affects hemodynamic function, coronary perfusion pressures, and intrathoracic pressure in order to inform the resuscitation community on reasonable target pressures to avoid "leaning" on the chest during pediatric CPR.


Clinical Trial Description

STUDY RATIONALE The critical importance of positive and negative intrathoracic pressures during Cardiopulmonary Resuscitation (CPR) has been recently demonstrated. During CPR, excessive positive intrathoracic pressure caused by overzealous ventilation or incomplete chest wall decompression has a detrimental effect on venous return to the heart, cardiac hemodynamics, and survival in adults. FDA-approved monitor/defibrillators with sensors that detect and provide feedback on the quality of chest compressions, including the amount of sternal pressure ("leaning"), can improve the quality of CPR in adults. These monitor/defibrillators have recently been implemented in the PICU and ED at CHOP. However, determining whether "leaning" (or gentle sternal pressure) affects return of venous blood to the thorax and intrathoracic pressure in children is unknown. A pilot study to determine whether or not two increments of sternal pressure known to occur during "leaning" in CPR affects hemodynamic function, coronary perfusion pressures, and intrathoracic pressure would be a first step toward informing the resuscitation community on reasonable target pressures to avoid "leaning" on the chest during pediatric CPR.

STUDY OBJECTIVE(S)

- To characterize the effect of the application of two different weights on the sternum known to approximate "leaning" during CPR on central hemodynamic measurements and coronary perfusion pressures in mechanically ventilated children.

- To characterize the effect of the application of two different weights on the sternum known to approximate "leaning" during CPR on intrathoracic pressure in mechanically ventilated children STUDY DESIGN This protocol is a prospective interventional pilot study at the Children's Hospital of Philadelphia.

STUDY PHASES Screening: Prospective patients enrolled will be screened by a co-investigator. Those that meet inclusion criteria will be approached by a member of the investigative team during the routine pre-procedure evaluation in the Cardiac Intake Center for discussion of the study and informed consent.

Phase 1: We will measure the depth of the chest. We will measure central hemodynamic pressures and function, coronary perfusion pressures and intrathoracic pressures as two weights (10% and 20% of body weight) are placed on the sternum. The primary outcome variable will be the change in any of the central hemodynamic measurements before and after each weight is applied to the sternum. ;


Study Design

Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Diagnostic


Related Conditions & MeSH terms


NCT number NCT01117883
Study type Interventional
Source Children's Hospital of Philadelphia
Contact
Status Completed
Phase N/A
Start date April 2010
Completion date March 2011

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