Post-hemorrhagic shock mesenteric lymph is an important contributor to cardiac dysfunction following hemorrhagic shock
Acta cir. bras
; 30(6): 439-444, 06/2015. graf
Article
in En
| LILACS
| ID: lil-749641
Responsible library:
BR1.1
ABSTRACT
PURPOSE:
To evaluate whether post-hemorrhagic shock mesenteric lymph (PSML) is involved in cardiac dysfunction induced by hemorrhagic shock.METHODS:
The hemorrhagic shock model (40±2 mmHg, 3h) was established in rats of the shock and shock+drainage groups; and PSML drainage was performed from hypotension 1-3h in the shock+drainage rats. Then, the isolated hearts were obtained from the rats for the examination of cardiac function with Langendorff system. Subsequently, the isolated hearts were obtained from normal rats and perfused with PSML or Krebs-Henseleit solution, and the changes of cardiac function were observed.RESULTS:
The left ventricular systolic pressure (LVSP) and the maximal rates of LV developed pressure (LVDP) rise and fall (±dP/dt max) in the shock and shock+drainage groups were lower than that of the sham group; otherwise, these indices in the shock+drainage group were higher compared to the shock group. In addition, after isolated hearts obtained from normal rats perfusing with PSML, these cardiac function indices were gradual decline along with the extension of time, such as heart rate, LVSP, ±dP/dt max, etc.CONCLUSION:
Post-hemorrhagic shock mesenteric lymph is an important contributor to cardiac dysfunction following hemorrhagic shock. .Key words
Full text:
1
Index:
LILACS
Main subject:
Shock, Hemorrhagic
/
Heart Diseases
/
Lymph
/
Mesentery
Type of study:
Prognostic_studies
Limits:
Animals
Language:
En
Journal:
Acta cir. bras
Journal subject:
CIRURGIA GERAL
/
Procedimentos Cir£rgicos Operat¢rios
Year:
2015
Type:
Article
/
Project document