Blood flow distribution in the left ventricular free wall in open-chest dogs

1981 ◽  
Vol 76 (4) ◽  
pp. 431-437 ◽  
Author(s):  
F. W. Prinzen ◽  
G. J. Vusse ◽  
R. S. Reneman
Keyword(s):  
Blood Flow ◽  
Flow Distribution ◽  
Left Ventricular ◽  
Ventricular Free Wall ◽  
Free Wall ◽  
Blood Flow Distribution ◽  
Left Ventricular Free Wall ◽  
Open Chest

Myocardial blood flow and VO2 in conscious lambs with an aortopulmonary shunt

1987 ◽  
Vol 252 (4) ◽  
pp. H681-H686 ◽  
Author(s):  
G. P. Toorop ◽  
R. Hardjowijono ◽  
M. Dalinghaus ◽  
A. M. Gerding ◽  
J. H. Koers ◽  
...  
Keyword(s):  
Blood Flow ◽  
Myocardial Blood Flow ◽  
Left Ventricular ◽  
Ventricular Free Wall ◽  
Heart Weight ◽  
Rate Pressure Product ◽  
Free Wall ◽  
Left Ventricular Free Wall ◽  
Work Index ◽  
Correct Estimation

We measured myocardial blood flow (QLVFW) and O2 consumption of the left ventricular free wall (VO2, LVFW) in 13 chronically instrumented, 7-wk-old lambs with an aortopulmonary left-to-right shunt (S) and in 10 control lambs without a shunt (C). The measured VO2, LVFW was compared with the calculated values obtained by two predictive indexes, the rate-pressure product (RPP) and the pressure-work index (PWI). Measured VO2, LVFW in S lambs was significantly higher than in C lambs [983 +/- 104 (SE) vs. 475 +/- 57 mumol X min-1 X 100 g LV-1, P less than 0.001]. This was achieved by the significantly higher QLVFW (294 +/- 33 vs. 145 +/- 15 ml X min-1 X 100 g LV-1, P less than 0.002), since the arteriovenous O2 difference across the left ventricular free wall was similar in both groups of lambs. Total coronary blood flow per unit body mass in S lambs was higher than in C lambs (14.1 +/- 1.5 vs. 5.6 +/- 0.6 ml X min-1 X kg-1, P less than 0.001), not only because of the increased VO2, LVFW per unit muscle mass, but also because of the increased total heart weight (102.4 +/- 6.4 vs. 81.2 +/- 4.9 g, P less than 0.02). Correct estimation of VO2, LVFW by means of the RPP and the PWI was only possible in C lambs. In S lambs the estimated values were significantly lower than the measured ones.(ABSTRACT TRUNCATED AT 250 WORDS)

Intracellular EDEMA does not adversely affect the ability to cryopreserve intact hearts

1993 ◽  
Vol 51 ◽  
pp. 278-279
Author(s):  
CL Hastings ◽  
RD Carlton ◽  
FG Lightfoot ◽  
AF Tryka
Keyword(s):  
Cell Injury ◽  
Median Sternotomy ◽  
Left Ventricular ◽  
Ventricular Free Wall ◽  
Hypoxic Cell ◽  
Free Wall ◽  
Sprague Dawley ◽  
Left Ventricular Free Wall ◽  
Sprague Dawley Rats

The earliest ultrastructural manifestation of hypoxic cell injury is the presence of intracellular edema. Does this intracellular edema affect the ability to cryopreserve intact myocardium? To answer this guestion, a model for anoxia induced intracellular edema (IE) was designed based on clinical intraoperative myocardial preservation protocol. The aortas of 250 gm male Sprague-Dawley rats were cannulated and a retrograde flush of Plegisol at 8°C was infused over 90 sec. The hearts were excised and placed in a 28°C bath of Lactated Ringers for 1 h. The left ventricular free wall was then sliced and the myocardium was slam frozen. Control rats (C) were anesthetized, the hearts approached by median sternotomy, and the left ventricular free wall frozen in situ immediately after slicing. The slam frozen samples were obtained utilizing the DDK PS1000, which was precooled to -185°C in liguid nitrogen. The tissue was in contact with the metal mirror for a dwell time of 20 sec, and stored in liguid nitrogen until freeze dry processing (Lightfoot, 1990).

scholarly journals Echocardiographic Findings in Friedreich's Ataxia

1976 ◽  
Vol 3 (4) ◽  
pp. 329-332 ◽  
Author(s):  
H.F. Gattiker ◽  
A. Davignon ◽  
A. Bozio ◽  
J. Batlle-Diaz ◽  
G. Geoffroy ◽  
...  
Keyword(s):  
Friedreich’S Ataxia ◽  
Left Ventricular ◽  
Friedreich's Ataxia ◽  
Ventricular Free Wall ◽  
Slight Reduction ◽  
Free Wall ◽  
Left Ventricular Free Wall ◽  
Echocardiographic Examination ◽  
Septal Hypertrophy ◽  
Echocardiographic Findings

SUMMARY:Echocardiographic examination of 21 patients with Friedreich's ataxia (age 7 to 28 years) showed cardiac abnormalities in 90% of the cases. They were characterized by varying degrees of septal hypertrophy in 81%, left ventricular free wall hypertrophy in 61%, and a slight reduction of left ventricular internal dimension in 57% of the cases. Asymmetric septal hypertrophy (ASH) with a septal/left ventricular free wall ratio of over 1.3 was found in 29% of the cases, and systolic anterior motion (SAM) of the mitral valve in three patients. Two other patients showed evidence of a different type of cardiomyopathy with marked symmetric left ventricular hypertrophy and marked left ventricular enlargement.

scholarly journals Meta‐analysis of surgical treatment for postinfarction left ventricular free‐wall rupture

2021 ◽  
Author(s):  
Matteo Matteucci ◽  
Francesco Formica ◽  
Mariusz Kowalewski ◽  
Giulio Massimi ◽  
Daniele Ronco ◽  
...  
Keyword(s):  
Surgical Treatment ◽  
Meta Analysis ◽  
Left Ventricular ◽  
Ventricular Free Wall ◽  
Free Wall ◽  
Left Ventricular Free Wall ◽  
Free Wall Rupture

scholarly journals LIFE-SAVING POCUS: CARDIOGENIC SHOCK AND TAMPONADE DUE TO LEFT VENTRICULAR FREE WALL RUPTURE

2021 ◽  
Vol 77 (18) ◽  
pp. 2517
Author(s):  
Maya Safarova ◽  
Carolyn Moore ◽  
Travis Abicht ◽  
Brian Weiford ◽  
Eric Hockstad
Keyword(s):  
Cardiogenic Shock ◽  
Left Ventricular ◽  
Ventricular Free Wall ◽  
Free Wall ◽  
Left Ventricular Free Wall ◽  
Free Wall Rupture ◽  
Life Saving
Sign in / Sign up

Export Citation Format

Share Document