scholarly journals Myocardial Contusion

2020 ◽  
Author(s):  
Keyword(s):  
Myocardial Contusion

Emergency Surgery in Patients with Post-traumatic Myocardial Contusion

1986 ◽  
Vol 26 (9) ◽  
pp. 795-803 ◽  
Author(s):  
LOUIS FLANCBAUM ◽  
JAMES WRIGHT ◽  
JOHN H. SIEGEL
Keyword(s):  
Emergency Surgery ◽  
Myocardial Contusion ◽  
Post Traumatic

Myocardial Contusion and Pericardial Effusion After Blunt Chest Trauma

2013 ◽  
Vol 91 (3) ◽  
pp. 205-206
Author(s):  
Ana Patricia Fariña Ruiz ◽  
Elisabeth Medina Darias ◽  
Carlos Enrique García Franco ◽  
Marcos Rodríguez Esteban
Keyword(s):  
Pericardial Effusion ◽  
Blunt Chest Trauma ◽  
Chest Trauma ◽  
Myocardial Contusion

Mechanisms of Ventricular Arrhythmias Induced by Myocardial Contusion

2000 ◽  
Vol 92 (4) ◽  
pp. 1132-1143 ◽  
Author(s):  
Emmanuelle Robert ◽  
Jean E. de La Coussaye ◽  
Antoine G. M. Aya ◽  
Jean-Pierre Bertinchant ◽  
Anne Polge ◽  
...  
Keyword(s):  
Kinetic Energy ◽  
Conduction Block ◽  
Rabbit Heart ◽  
Control Group ◽  
Myocardial Contusion ◽  
Refractory Periods ◽  
Heart Study ◽  
Resolution Mapping ◽  
Ventricular Tachycardias ◽  
Intact Heart

Background The aims of the Langendorff-perfused rabbit heart study were to evaluate the arrhythmogenic consequences of myocardial contusion and to determine the mechanism of arrhythmia. Methods Six hearts were in the control group, and 24 hearts (intact heart protocol) were submitted to one of four different contusion kinetic energies (75, 100, 150, or 200 millijoules [mJ]; n = 6). Occurrence of arrhythmia, of an electrically silent area (i.e., area with no electrical activity), and of line of fixed conduction block were reported before and for 1 h after contusion. In 16 hearts (frozen hearts) submitted to cryoprocedure and contusion impact of 100 or 200 mJ, ventricular conduction velocities, anisotropic ratio, wavelengths, ventricular effective refractory period, and its dispersion were measured before and for 1 h after contusion. Using high-resolution mapping, arrhythmias were recorded and analyzed. Results The intact heart study showed that the number and seriousness of contusion-induced arrhythmias increased with increasing contusion kinetic energy, as did the number of electrically silent areas (five of six ventricular fibrillations and five of six electrically silent areas at 200 mJ). In the frozen heart study, immediately after contusion ventricular effective refractory periods were shortened and dispersed, and wavelengths were also shortened. The arrhythmia analysis showed that all ventricular tachycardias but one were based on reentry developed around an electrically silent area or a line of fixed conduction block. Conclusions Myocardial contusion has direct arrhythmogenic effects, and the seriousness of arrhythmia increases with the level of contusion kinetic energy. The mechanism of arrhythmia was mainly based on reentrant circuit around a fixed obstacle.

Myocardial Contusion

2007 ◽  
pp. 452-457
Author(s):  
Joel A. Garcia ◽  
John C. Messenger
Keyword(s):  
Myocardial Contusion
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