PREMATURE ATRIAL COMPLICES
\pɹɪmət͡ʃˈʊ͡əɹ ˈatɹɪəl kəmplɪsˈɛɪz], \pɹɪmətʃˈʊəɹ ˈatɹɪəl kəmplɪsˈɛɪz], \p_ɹ_ɪ_m_ə_tʃ_ˈʊə_ɹ ˈa_t_ɹ_ɪ__ə_l k_ə_m_p_l_ɪ_s_ˈɛ_ɪ_z]\
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Premature contractions of the heart arising from an ectopic atrial focus. With ventricular premature complexes, they represent one of the most common causes of irregular pulse. They are more apt to occur if there is atrial or conduction system disease such as left atrial enlargement in mitral stenosis. In community prospective studies, atrial premature complexes are not related to sudden death, as are ventricular premature beats in coronary disease. (From Stedman, 25th ed; Braunwald, Heart Disease, 4th ed, p679; Sokolow, et al., Clinical Cardiology, 5th ed, p472)
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Dopamine Acetyltransferase
- An enzyme that catalyzes the of groups from acetyl-CoA to arylamines. They have wide specificity for aromatic amines, particularly serotonin, and can also catalyze acetyl transfer between arylamines without CoA. EC 2.3.1.5.