A case of successful selective abortion using radio-frequency ablation in twin pregnancy suffering from severe twin to twin transfusion syndrome.

Twin to twin transfusion syndrome (TTTS) is one of the major complication of monochorionic twin pregnancy which is mainly understood by placental vascular anastomosis. Perinatal mortality and morbidity is high as 80-100% if untreated and even higher if the disease is developed at early stage. Variety of methods of isolating or intercepting placental vascular anastomosis are introduced, but they are only available in centers where all the required equipments are prepared.

Haplotype analysis of the matrix metalloproteinase-9 gene associated with advanced-stage endometriosis.

Objective: To investigate whether the -1562C>T, R279Q, P574R, and R668Q polymorphisms of the matrix metalloproteinase-9 (MMP-9) gene are related to endometriosis.

Design: Case-control study.

Setting: University-based hospital in Korea.