منابع مشابه
Twin Reversed Arterial Perfusion (trap) Sequence: Biology and Management
In the usual setting, blood from the placenta enters the fetal circulation through the umbilical veins and exits via the umbilical artery. Very rarely (1% of MC twins or 1:35,000 births), retrograde or reversed arterial perfusion takes place, from the placenta through the umbilical artery of one of the twins, and the twin with the reversed flow receives all of its blood supply from a normal co-...
متن کاملConjoined Twin
:HSUHVHQWDFRQMRLQHGWZLQ &7FDVHRISUHJQDQF LQ D HDUROG ZRPDQ JUDYLGD SDUD ZKRFDPH IRUKHU¿UVW URXWLQHXOWUDVRXQGDW ZHHNVRIJHVWDWLRQ6KHFRQFHLYHGEVSRQWDQHRXV conception. The patient had a healthy child from a SUHYLRXVSUHJQDQF7KHLQLWLDOXOWUDVRXQGUHYHDOHG two fetuses with a fused thorax and abdomen, two spines with an unusual extension, one beating heart, VKDUHG OLYHU DFURVV WKH IHWXVHV IRXU NLGQHV W...
متن کاملOn Twin--Good Rings
In this paper, we investigate various kinds of extensions of twin-good rings. Moreover, we prove that every element of an abelian neat ring R is twin-good if and only if R has no factor ring isomorphic to Z2 or Z3. The main result of [24] states some conditions that any right self-injective ring R is twin-good. We extend this result to any regular Baer ring R by proving that every elemen...
متن کاملTwin-twin transfusion syndrome.
OBJECTIVE We sought to review the natural history, pathophysiology, diagnosis, and treatment options for twin-twin transfusion syndrome (TTTS). METHODS A systematic review was performed using MEDLINE database, PubMed, EMBASE, and Cochrane Library. The search was restricted to English-language articles published from 1966 through July 2012. Priority was given to articles reporting original res...
متن کاملTwin-to-twin transfusion syndrome.
Twin to twin transfusion syndrome (TTTS) is a specific condition complicating 10-15% of monochorionic multiple pregnancy. Intertwin vascular anastomoses and transfusion is a normal event. Syndrome develops when blood flow is unbalanced. Recent studies suggest a paucity of bi-directional superficial anastomoses failing to compensate for hemodynamic imbalance resulting from unidirectional transfu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Heredity
سال: 1970
ISSN: 0018-067X,1365-2540
DOI: 10.1038/hdy.1970.71