| foetal souffle | <obstetrics, paediatrics> A blowing murmur, synchronous with the foetal heart beat, sometimes only systolic and sometimes continuous, heard on auscultation over the pregnant uterus. Synonym: funic souffle, funicular souffle, umbilical souffle. (05 Mar 2000) |
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| foetal tachycardia | <obstetrics, paediatrics> A foetal heart rate of 160 or more beats per minute. (05 Mar 2000) |
| foetal tissue transplantation | Transference of foetal tissue between individuals of the same species or between individuals of different species. (12 Dec 1998) |
| foetal trimethadione syndrome | <paediatrics, syndrome> A foetal syndrome resulting from maternal ingestion of trimethadione during the early weeks of pregnancy and characterised by developmental delay, V-shaped eyebrows, epicanthus, low-set ears with anteriorly folded helix, palatal anomaly, and irregular teeth. (05 Mar 2000) |
| foetal viability | <obstetrics> The potential of the foetus-in-utero to survive after birth. (12 Dec 1998) |
| foetal warfarin syndrome | <obstetrics> Foetal bleeding, nasal hypoplasia, optic atrophy, and foetal death resulting from administration of warfarin to the pregnant patient. (05 Mar 2000) |
| foetal zone | An extensive area of the adrenal gland present in primates during foetal life and for a short period after birth; located between the definitive cortex and the medulla, it contains large steroid-secreting cells arranged in a reticular pattern; involution of this zone in humans is largely completed by three months after birth. Synonym: androgenic zone, foetal reticularis, foetal zone, provisional cortex. (05 Mar 2000) |
| abnormal heart chamber dimensions | <radiology> Left ventricular volume overload, left ventricular hypertrophy, right ventricular volume overload, right ventricular hypertrophy, fixed subvalvular aortic stenosis, hypoplastic left/right ventricle; common ventricle, congestive cardiomyopathy (12 Dec 1998) |
| Abrams' heart reflex | A contraction of the myocardium when the skin of the precordial region is irritated. (05 Mar 2000) |
| american heart association | A voluntary organization concerned with the prevention and treatment of heart and vascular diseases. (12 Dec 1998) |
| apex of heart | The blunt extremity of the heart formed by the left ventricle. See: apex beat. Synonym: apex cordis, vertex cordis. (05 Mar 2000) |
| armored heart | Calcareous deposits in the pericardium due to subacute or chronic pericarditis. Synonym: panzerherz. (05 Mar 2000) |
| armor heart | Extensive to complete calcification (rarely ossification) of the pericardium usually producing constrictive pericarditis. (05 Mar 2000) |
| artificial heart | A mechanical pump used to replace the function of a damaged heart, either temporarily or as a permanent prosthesis. (05 Mar 2000) |
| artificial heart valve | <cardiology> A synthetic or porcine (pigskin) valve surgically placed into the heart to replace a defective or malfunctioning valve. The aortic and mitral valves are the most frequently replaced with artificial valves. (27 Sep 1997) |