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The effect of pneumoperitoneum on intravascular fibrinolytic activity in rats.
Turkish Journal of Medical Sciences 2016 November 18
BACKGROUND/AIM: Venous stasis during pneumoperitoneum in laparoscopic surgery is closely related to fibrin synthesis and deposition. The etiologic factors underlying fibrinolysis or hypercoagulability are not clearly defined. This study aimed to determine the effects of pneumoperitoneum time and pressure on coagulation cascade and the fibrinolytic pathway.
MATERIALS AND METHODS: After the pneumoperitoneum model was established in rats, PAI-1, tPA, TAFI, D-dimer, and fibrinogen activities were evaluated in different time periods under different pressures in groups including 6 rats. Group 1 did not undergo any procedure. Group 2 received 8 mmHg of pressure for 30 min, Group III 8 mmHg for 60 min, Group IV 12 mmHg for 30 min, and Group V 12 mmHg for 60 min.
RESULTS: D-dimer levels had a tendency to decrease with increasing intraabdominal pressures. In both low and high pressure groups, fibrinogen had a tendency to increase with exposure time. There was no statistically significant difference among the study groups in terms of fibrinogen, D-dimer, and PAI-1. The levels of TAFI were significantly decreased with increasing pressure regardless of the exposure time.
CONCLUSION: Pneumoperitoneum of the coagulation system can be changed by duration of time and pressure.
MATERIALS AND METHODS: After the pneumoperitoneum model was established in rats, PAI-1, tPA, TAFI, D-dimer, and fibrinogen activities were evaluated in different time periods under different pressures in groups including 6 rats. Group 1 did not undergo any procedure. Group 2 received 8 mmHg of pressure for 30 min, Group III 8 mmHg for 60 min, Group IV 12 mmHg for 30 min, and Group V 12 mmHg for 60 min.
RESULTS: D-dimer levels had a tendency to decrease with increasing intraabdominal pressures. In both low and high pressure groups, fibrinogen had a tendency to increase with exposure time. There was no statistically significant difference among the study groups in terms of fibrinogen, D-dimer, and PAI-1. The levels of TAFI were significantly decreased with increasing pressure regardless of the exposure time.
CONCLUSION: Pneumoperitoneum of the coagulation system can be changed by duration of time and pressure.
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