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Updated: Jul 22, 2026
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Monitoring of Systemic and Hepatic Hemodynamic Parameters in Mice
Published on: October 4, 2014
Systematic evaluation of different approaches for minimizing hemodynamic changes during pneumoperitoneum
T Junghans1, D Modersohn, F Dörner
1Department of General, Visceral, Vascular, and Thoracic Surgery, Charité Universitary Medicine, Campus Mitte, Schumannstrasse 20/21, Berlin, 10117, Germany. tido.junghans@charite.de
Surgical Endoscopy
|January 27, 2006
Summary
Optimizing intrathoracic blood volume (ITBV) effectively manages hemodynamic changes during capnoperitoneum (CP). Beta-blockers and vasodilators were less effective, with beta-blockers potentially impairing cardiac function.
Area of Science:
- Anesthesiology
- Cardiovascular Physiology
- Surgical Innovation
Background:
- Capnoperitoneum (CP) during laparoscopy significantly impairs hemodynamic stability.
- Therapeutic strategies are needed to mitigate the adverse hemodynamic effects of CP.
Purpose of the Study:
- To evaluate the efficacy of increasing intrathoracic blood volume (ITBV), beta1-blocker (esmolol), and vasodilator (sodium nitroprusside) in managing hemodynamic compromise during CP.
Main Methods:
- A study involving 43 pigs assessed hemodynamic responses under CP in various body positions.
- Interventions included fluid administration, esmolol, and sodium nitroprusside, with invasive hemodynamic monitoring.
Main Results:
- Increased ITBV improved hemodynamic function across all body positions during CP.
- Esmolol decreased cardiac output and myocardial contractility.
- Sodium nitroprusside did not yield improvements in hemodynamic parameters.
Conclusions:
- Optimizing volume load is a key strategy for minimizing hemodynamic changes during CP, particularly in head-up and head-down positions.
- Beta-blockers are not recommended due to potential negative impacts on myocardial contractility and compensatory responses.
- Vasodilation strategies did not prove beneficial for improving hemodynamic parameters in CP.
