Conjoined Twins in History

موضوع: Conjoined Twins in History الجمعة أبريل 01, 2011 7:27 pm

Conjoined Twins in History

Historical References to Conjoined Twins
AD 945:
There is a reference to Armenian omphalopagus twins.
1100-1134: Eliza and
Mary Chulkhurst, who came to be called the ‘Biddenden Maids’ were pyopagus
English conjoined twins. In their home village little cakes imprinted with their
image are distributed at Easter.
1538: There is a record of omphalopagus
twins born in Switzerland.
1811: Chang & Eng Bunker, the famous ‘Siamese
Twins’ were circus performers who later became successful farmers, married and
fathered many children.
1878: Rosa and Josepha Blazek were talented Bavarian
violinists, joined at the sacrum (pyopagus twins).

Early Attempts at
Surgical Separation
1495: In Germany, when one craniopagus twin died an
unsuccessful attempt was made to remove it from the living twin.
1689: The
first successful twin separation was performed in Basle, Switzerland on girls
joined by a ligament at the sternum (xiphopagus twins). A constricting band was
used.
1899: Brazilian sisters Maria and Rosalina were separated at the age
of 8 and both survived.
1957: The first successful separation of craniopagus
twins was performed by Dr. H.C. Voris.

Incidence of Conjoined Twins

In Western Countries: 1:50,000 -1:200,000 births
In Southeast Asia &
Africa: 1:14,000 -1:25,000 births
The reason for this difference is unknown.

The increased incidence of conjoined twinning may have genetic causes.
•
60% of conjoined twins -----> Stillborn
• 40% of the live births
-----> die within few days
• 70% -----> females

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