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atriomegaly a·tri·o·meg·a·ly (ā’trē-ō-měg’ə-lē)
Enlargement of the atrium of the heart.


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  • Atriopeptin

    any of several peptide hormones that are released by the atria of the heart in response to an abnormal increase in blood volume and that modulate blood pressure and the excretion of sodium, potassium, and water. Abbreviation: ANF. atrial natriuretic factor n. A peptide hormone released from cardiac atrial tissue that causes increased elimination of […]

  • Atrioseptopexy

    atrioseptopexy atrioseptopexy a·tri·o·sep·to·pex·y (ā’trē-ō-sěp’tə-pěk’sē) n. Surgical repair of an atrial septal defect.

  • Atrioseptoplasty

    atrioseptoplasty atrioseptoplasty a·tri·o·sep·to·plas·ty (ā’trē-ō-sěp’tə-plās’tē) n. Repair of an atrial septal defect by plastic surgery.

  • Atrioseptostomy

    atrioseptostomy atrioseptostomy a·tri·o·sep·tos·to·my (ā’trē-ō-sěp-tŏs’tə-mē) n. The surgical establishment of a communication between the atria of the heart.

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