Acardiac
Definition
Lacking a heart, or possessing a rudimentary, completely non-functional heart. In neonatology and fetal medicine, the term describes an 'acardiac fetus' (or acardiac twin), an extremely rare congenital anomaly occurring exclusively in monochorionic twin pregnancies due to Twin Reversed Arterial Perfusion (TRAP sequence). In this condition, the malformed fetus survives in utero only because it receives blood pumped by the heart of its healthy co-twin (the pump twin).
Bilingual Equivalents
- Acardiac
- Acardius
Grammatical & Source Details
| Inflection Type | Variable adjective and masculine noun with standard regular endings. |
| Formation | Medical neologism from French 'acardiaque', originating from Greek 'a-' (without) and 'kardia' (heart). |
| Spelling / Pronunciation | [a.kar.ˈdi.ak] |
| Source | Textbook of Fetal Abnormalities and Obstetric Teratology |
Contextual Usage Examples
RO: Echografia morfologică de trimestru doi a evidențiat prezența unui făt acardiac care depindea în totalitate de circulația fratelui său.
EN: The second-trimester morphology ultrasound revealed the presence of an acardiac fetus that completely depended on its brother's circulation.
RO: Deoarece geamănul normal pompează sânge pentru amândoi, starea acestui acardiac pune o presiune uriașă pe inima celuilalt.
EN: Because the normal twin pumps blood for both, the state of this acardiac twin puts a huge strain on the other's heart.
RO: Un caz sever de geamăn acardiac a fost tratat cu succes în cadrul clinicii noastre prin lasercoagulare vasculară.
EN: A severe case of an acardiac twin was successfully treated in our clinic using vascular laser coagulation.
Idioms & Phrases
Geamăn acardiac (Acardiac twin) / Acardiac twin
RO: Fătul dezavantajat hemodinamic dintr-o sarcină monocorială, care suferă de atrofie severă a structurilor superioare din cauza lipsei cordului.
EN: The hemodynamically disadvantaged fetus in a monochorionic pregnancy, which undergoes severe atrophy of upper structures due to the absence of a heart.
Făt acardiac amorf (Acardius amorphus) / Acardius amorphus
RO: Cea mai severă formă de malformație acardiacă, în care fătul recurent nu dezvoltă nicio formă umană recunoscibilă, apărând ca o masă de țesut.
EN: The most severe form of acardiac malformation, where the recipient fetus develops no recognizable human form, appearing merely as a tissue mass.
Secvență de perfuzie acardiacă / Acardiac perfusion sequence
RO: Mecanismul fiziopatologic prin care sângele deoxigenat curge în sens invers prin artera ombilicală direct către fătul malformat.
EN: The pathophysiological mechanism whereby deoxygenated blood flows in a reversed direction through the umbilical artery directly toward the malformed fetus.
Latest Contextual News
No recent news found for this topic.