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November 1, 1990Circulation ResearchOpen Access

Nonuniform regional deformation of the pericardium during the cardiac cycle in dogs.

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Population

8 open-chest dogs

Design

Preclinical

Authors

YGYoichi GotoPreventive CardiologyMLMartin M. LeWinterHeart Failure & Transplant

Discussion

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Implication

Pericardial forces may modulate RV-RA interactions in tamponade; leaves open translation to human filling dynamics and management.

Structured PICO

P
Population
8 open-chest dogs (6 for right atrium/right ventricle measurements, 2 for left atrium/left ventricle measurements)
I
Intervention
Measurement of regional pericardial area using orthogonal pairs of sonomicrometers under varying conditions (baseline, volume loading, cardiac tamponade)
O
Outcome
Regional pericardial area changes during the cardiac cyclesurrogate

Dynamic pericardial contact forces cause regional variation in pericardial deformation, reflecting volume changes of underlying chambers, suggesting a complex, dynamic influence of the pericardium on cardiac filling and ejection.

Cite This Study

Goto et al. (1990) studied this question.

synapsesocial.com/papers/6a8a442f0f137e402b337c17https://doi.org/10.1161/01.res.67.5.1107
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Regional variation in pericardial contact pressure in the canine ventricle1988 · 22 citations
  2. 2In vivo mechanical behavior of canine pericardium1986 · 14 citations
  3. 3Biaxial mechanical properties of the pericardium in normal and volume overload dogs1985 · 64 citations
  4. 4Assessment of pericardial constraint in dogs.1985 · 144 citations
  5. 5Alteration of the left ventricular diastolic pressure-segment length relation produced by the pericardium. Effects of cardiac distension and afterload reduction in conscious dogs.1978 · 163 citations