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Tkachenko, B. I.; Evlakhov, V. I.; Poyasov, I. Z.

doi:10.1023/a:1026352816653

Cited by 2 publications

(8 citation statements)

References 5 publications

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“…Different shifts in RAP in response to injection of catecholamines were demonstrated previously [2]. Here we revealed a similar character of changes in LAP.…”

Section: Resultssupporting

confidence: 89%

“…Opposite shifts in LAP and RAP were not related to changes in these parameters of systemic hemodynamic. It was previously established that the decrease in RAP after catecholamine injection was accompanied by a significant increase in venous return and right ventricular contractility [2]. If, under similar conditions less pronounced increases in venous return and right ventricular contractility were observed, RAP tended to grow [2].…”

Section: Resultsmentioning

confidence: 96%

“…It was previously established that the decrease in RAP after catecholamine injection was accompanied by a significant increase in venous return and right ventricular contractility [2]. If, under similar conditions less pronounced increases in venous return and right ventricular contractility were observed, RAP tended to grow [2]. By analogy, one can suppose that the character of left atrial pressures shifts depends on the relationship between the left heart inflow and the left ventricular contractility.…”

Section: Resultsmentioning

confidence: 96%

“…Blood pressure (BP) was measured in the left femoral artery using an 6MDKh1B ultraminiature mechanotron transducer [2]. The right and left atrial pressures (RAP and LAP, respectively) were measured with low-pressure transducers based on 6MD11S mechanotrons [2] using catheters introduced into the atrial chambers via the corresponding auricles. The mean values of RAP and LAP were calculated from their systolic and diastolic levels using an integrator.…”

Section: Methodsmentioning

confidence: 99%

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Dynamic relations between right and left atrial pressure shifts induced by catecholamines

2005

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Acute experiments on cats showed that injection of catecholamines induced unidirectional shifts in right and left atrial pressure in 70% cases (these shifts were positive in one half of cats and negative in the other half). In 30% cases, the left and right atrial pressures changed in opposite direction: right atrial pressure decreased, while left atrial pressure increased (19%), or vice versa (11%). The pressure changes in the left atrium had greater amplitude and longer duration compared to those in the right atrium.

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“…Different shifts in RAP in response to injection of catecholamines were demonstrated previously [2]. Here we revealed a similar character of changes in LAP.…”

Section: Resultssupporting

confidence: 89%

Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 96%

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Dynamic relations between right and left atrial pressure shifts induced by catecholamines

2005

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“…In these experiments, we employed the original methods reported elsewhere [1][2][3]. Artifi cial ventilation was performed with a Faza-9 ventilator (30-35 cycles per minute, respiratory volume 45-65 cm 3 ) under open thorax.…”

Section: Methodsmentioning

confidence: 99%

Changes in Pulmonary Hemodynamics Induced by Experimental Myocardial Ischemia in Nitroglycerin- or Acetylcholine-Treated Rabbits

Evlakhov

Poyasov

2014

Bull Exp Biol Med

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The responses of cardiovascular parameters to left-ventricular myocardial ischemia induced under control conditions and after administration of nitroglycerin or acetylcholine were examined in rabbits. In nitroglycerine-treated rabbits, experimental myocardial ischemia produced less pronounced depressor BP shifts in the pulmonary artery than those produced by ischemia in controls (prior to pharmacological treatment) or by experimental ischemia provoked after acetylcholine infusion. Control and experimental ischemia (provoked after nitroglycerin or acetylcholine administration) induced the same drop in pulmonary blood fl ow accompanied with insignificant changes in vascular pulmonary resistance. Experimental ischemia produced smaller pressure increase in left atrium of nitroglycerine-treated rabbits (evidencing a smaller drop in left ventricular contractility) than the control ischemia performed prior to pharmacological treatment, or the experimental ischemia in acetylcholine-treated rabbits, which attested to protective effect of nitroglycerin against ischemia.

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Cited by 2 publications

References 5 publications

Dynamic relations between right and left atrial pressure shifts induced by catecholamines

Dynamic relations between right and left atrial pressure shifts induced by catecholamines

Changes in Pulmonary Hemodynamics Induced by Experimental Myocardial Ischemia in Nitroglycerin- or Acetylcholine-Treated Rabbits

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