Influence of arterial hemostasis with three tourniquets on venous blood gas in dogs
10.3760/cma.j.issn.1001-8050.2010.06.023
- VernacularTitle:三种止血带动脉止血对犬束扎肢体静脉血气的影响
- Author:
Yan WANG
;
Daqiao ZHU
;
Zhihong WANG
- Publication Type:Journal Article
- Keywords:
Tourniquets;
Wounds and injuries,extremities;
Blood gas analysis
- From:
Chinese Journal of Trauma
2010;26(6):556-561
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe changes of venous blood gas when applying tourniquets to arterial bleeding dog models and compare the injury of the bundled tissues caused by three different tourniquets. Methods A total of 18 dogs were randomly divided to three groups and made into femoral artery bleeding model of the hind limbs. Then, rubber tubing, half-hitch tourniquet and multi-function pressure-control bandage (hemostatic bandage group) were employed respectively for femoral artery hemostasis in three groups. The pressure produced by the bandage and femoral vein blood gas indices were measured at 0.5, 1, 3 and 6 hours respectively after tourniquet application. Results The pressure produced by the hemostatic bandage group was 0.74 kg, which was obviously lower than 1.46 kg in the rubber tubing group and 2.09 kg in the half-hitch tourniquet group ( P ＜ 0.05 ). At one hour after hemostasis, PvO2 was (36.45 ± 10.45 )mm Hg in the hemostatic bandage group and (28.73 ± 9.07 )mm Hg in the rubber tubing group, which was significantly higher than (21.87 ±4.30) mm Hg in the half-hitch tourniquet group ( P ＜ 0.05 ). At 3 and 6 hours after hemostasis, PvCO2 was (50.67 ± 9.31 ) mm Hg and (60.02 ± 10.85)mm Hg respectively in the hemostatic bandage group, while (16.85 ± 16.51 )mm Hg and ( 60.02 ± 10.85) mm Hg respectively in the rubber tubing group, which were lower than that in the half-hitch tourniquet group ( P ＜ 0.05 or 0.01 ) . Conclusion Compared with rubber tubing and Halfhitch tourniquet, the hemostatic bandage can efficiently stop bleeding under slight pressure, with the least injury to the bundled tissues.
