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Ehocardiographic evaluation of regional left atrial function after rapid atrial pacing

100%

Kozelj M., Zupan I., Butinar J., Seliskar A., Rakovec P.

Cellular and Molecular Biology Letters

2002

tom 07

nr 2

Rapid regular atrial pacing (RAP) produces changes in atrial function similar to those caused by atrial fibrillation in animal models. Left atrial appendage (LAA) function represents regional atrial function. The aim of our study was to investigate the inﬂuence of RAP on left atrial regional function and to evaluate the reversibility of changes after terminationtermination of pacing in a canine model. Eight dogs were subjected to RAP (400 bpm) for 16 days. Transesophageal echocardiography was performed at baseline, immediately after RAP and weeks after the terminationtermination of RAP. The LAA peak late emptying velocity (LAA-E) and filling wave (LAA-f) were measured. LAA-E velocities were significantly reduced and filling wave velocities (LAA-f) were significantly less negative after RAP compared with the baseline values. Four weeks after terminationtermination of pacing, the LAA-E and LAA-f velocities were normal. RAP results in impaired regional atrial systolic and diastolic function. The changes were completely reversible 4 weeks after terminationtermination of pacing. These results suggest that the LAA is mechanically stunned after RAP.

Atrial natiuretic peptide and brain natriuretic peptide changes after epicardial percutaneous left atrial appendage suture ligation using LARIAT device

72%

Bartus K., Podolec J., Lee R. J., Kapelak B., Sadowski J., Bartus M., Oles K., Ceranowicz P., Trabka R., Litwinowicz R.

Journal of Physiology and Pharmacology

2017

tom 68

nr 1

Ograniczanie wyników

1 Cellular and Molecular Biology Letters

1 Journal of Physiology and Pharmacology

1 Bartus K.

1 Bartus M.

1 Butinar J.

1 Ceranowicz P.

1 Kapelak B.

1 Kozelj M.

1 Lee R. J.

1 Litwinowicz R.

1 Oles K.

1 Podolec J.

1 Rakovec P.

1 Sadowski J.

1 Seliskar A.

1 Trabka R.

1 Zupan I.

1 2017

1 2002

Wyniki wyszukiwania

Ehocardiographic evaluation of regional left atrial function after rapid atrial pacing

Atrial natiuretic peptide and brain natriuretic peptide changes after epicardial percutaneous left atrial appendage suture ligation using LARIAT device