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At least 37 records · Page 2Linked to original sources
PubMed1987

Influence of steroids on hemorrhagic and traumatic shock.

A hemorrhagic-traumatic shock model in 20 domestic pigs (Sus scrofa) was used to evaluate the pharmacologic effect of methylprednisolone in preventing disseminated intravascular coagulation (DIC). Pairs of animals were anesthetized with thiopental and both femoral arteries cannulated. Four ml/kg-1 of blood were withdrawn, frozen, thawed, and returned to the animal. One femoral artery cannula was connected to a blood pressure monitor for arterial systolic, diastolic, and mean pressures along with heart rate and ECG. The other catheter was used to bleed the animal down to and maintain a mean arterial pressure of 50 mm Hg for 2 hours. Blood samples were taken during the control period before bleeding, and at the end of the 2-hour shock period. Blood samples were analyzed for prothrombin time, partial thromboplastin time, fibrinogen level, and platelet count. The combination of hemorrhagic shock and hemolysis produced DIC and a fatal shock. Pharmacologic doses (30 mg/kg-1) of methylprednisolone significantly prevent the DIC.

Adrenal Cortex Hormones↗
PubMed1989

[Experience with using narcanti (naloxone) in patients with traumatic shock].

Twelve patients with traumatic shock caused by a mechanical trauma were treated with narcanti within 6 h after trauma with a single dose 0.4 mg, and then intravenously in drops (0.4 mg/100 ml of the sodium chloride solution) with the general dose 2.8 +/- 0.8 mg. It gave favourable hemodynamic and respiratory effects and contributed to stabilization of the indices of metabolism homeostasis.

Hemodynamics↗
PubMed1986

Anti-shock properties of the prostacyclin analog, iloprost, in traumatic shock.

The effects of iloprost, a synthetic carbacyclin derivative of prostacyclin (PGI2) was studied in a standardized model of traumatic shock. Pentobarbital anesthetized rats (35 mg/kg) subjected to Noble-Collip drum trauma were characterized by a 84 +/- 10 minute survival time, a 16-fold increase in plasma cathepsin D activity, and a 5-fold increase in plasma myocardial depressant factor (MDF) activity. Iloprost significantly attenuated the accumulation of MDF activity in the plasma (69 +/- 14 vs. 20 +/- 6 U/ml) vehicle vs. drug (p less than 0.01), respectively, and significantly prolonged survival time to 243 +/- 36 minutes (p less than 0.01). Plasma cathepsin D activity was also significantly attenuated (12 +/- 1.8 vs. 6.2 +/- 2.1 U/ml), vehicle vs. drug, respectively (p less than 0.02). Iloprost exhibited significant anti-proteolytic activity in pancreatic homogenates. Iloprost appears to exert a membrane stabilizing effect decreasing plasma cathepsin D activity and attenuating MDF production, probably secondarily to its anti-proteolytic effect and its maintenance of the splanchnic circulation. Iloprost may therefore prove to be a useful therapeutic agent in acute ischemic disorders including traumatic shock.

Animals↗
PubMed2003

[Study on the relationship between changes of adrenomedulin in plasma and vascular resistance during traumatic shock in rats].

OBJECTIVE: To observe the changes of adrenomedulin in plasma and vascular resistance during traumatic shock in rats. METHODS: The concentration of adrenomedulin in plasma of rats after traumatic shock was detected by radio immunization. Mean arterial pressure, total peripheral vascular resistance (TPVR) and cardiac index (CI) were estimated by electrical conductance method. RESULTS: The concentration of adrenomedulin in plasma of traumatic shock without resuscitation group (68.34+/-3.71)ng/L and traumatic shock with resuscitation group (146.27+/-9.83)ng/L were higher than that of control group(32.63+/-7.55)ng/L (P<0.01 and P<0.05). TPVR of traumatic shock with resuscitation group (10.57+/-0.35) kPa.s.L-1 was lower than that of traumatic shock without resuscitation group (16.75+/-0.23) kPa.s.L-1(P<0.01) and its CI (215.59+/-1.29) ml.min-1.kg-1 was higher than that of traumatic shock without resuscitation group (143.11+/-0.86) ml.min-1.kg-1 (P<0.01). CONCLUSION: Adrenomedulin is closely correlated with changes of vascular resistance and plays an important role during pathophysiological processes in rats after traumatic shock.

Adrenomedullin↗