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[Experimental model for cardiogenic shock with pericardial tamponade]
Gábor Bari1, Szilárd Szűcs2, Dániel Érces2
1II. Belgyógyászati Klinika és Kardiológiai Központ, Szívsebészeti Osztály, Szegedi Tudományegyetem Szeged.
Magyar Sebeszet
|November 30, 2017
Summary
Pericardial tamponade (PT) in a large animal model demonstrated significant hemodynamic compromise. This study developed a reproducible model to investigate cardiogenic shock consequences.
Area of Science:
- Cardiovascular Physiology
- Surgical Models
- Shock Pathophysiology
Background:
- Pericardial tamponade (PT) is a critical condition causing low cardiac output and affecting tissue circulation.
- Understanding the systemic effects of PT, particularly on microcirculation, is crucial for managing cardiogenic shock.
Purpose of the Study:
- To establish a stable and controllable large animal model of PT.
- To investigate the hemodynamic and microcirculatory consequences of PT and subsequent reperfusion.
Main Methods:
- Anesthetized Vietnamese minipigs underwent either sham operation or PT induction via intrapericardial blood injection.
- Macrohemodynamics, renal and mesenteric circulation, and ileal microcirculation were monitored.
- Myeloperoxidase (MPO) activity and mucosal histology were assessed.
Main Results:
- PT significantly increased central venous pressure and heart rate while decreasing mean arterial pressure.
- Mesenteric and renal blood flow were substantially reduced post-PT.
- Ileal microcirculation was impaired, with elevated MPO activity and mucosal injury observed.
Conclusions:
- The developed large animal model of PT is reproducible and suitable for studying cardiogenic shock.
- This model allows for clinically relevant investigations into the hemodynamic and biochemical effects of PT.
