[Preterm delivery by cesarean section in patient with polycythemia vera]. / Przedwczesne ukonczenie ciazy cieciem cesarskim u pacjentki z czerwienica prawdziwa.

Polycythemia vera is a myeloproliferative disease most commonly diagnosed in male 60-70 years old patients. It is associated with a higher risk of thrombosis and bleeding. It is very rarely diagnosed in young patients, and thus only few cases of pregnant women have been reported in the literature. These reports show that polycythemia vera may have a detrimental effect on outcome of the pregnancy (PIH, spontaneous miscarriages, preterm delivery, and stillbirth). We report a 33-year-old woman with polycythemia vera who underwent caesarean delivery in 34 weeks gestation. This case demonstrates fully successful result of our intensive perinatal care.

[Subsequent pregnancy (twin) in woman with autoimmunological hepatitis]. / Kolejna ciaza (blizniacza) u pacjentki z autoimmunologicznym zapaleniem watroby.

Autoimmunological hepatitis is a long lasting disease with periods of recurrences and remissions. There is a limited knowledge on this subject during the pregnancy. We present a case of a subsequent pregnancy (twin) in woman with autoimmunological hepatitis. The patient's condition between both pregnancies was so severe that she was assigned for organ transplantation. However after treatment with prednisolone and azathioprine patient's outcome improved. The patient got pregnant in a short time after remission. Pregnancy did not have any negative influence on symptoms of the disease in this case; moreover we observed complete remission of the disease.

[Case report of 18 weeks delayed delivery of the second twin after the miscarriage of the first fetus at the 17th week of pregnancy]. / Poród odroczony o 18 tygodni po wczesniejszym poronieniu pierwszego z blizniat.

Delayed delivery of the second twin after the miscarriage of the first foetus is very rare. Delayed second-twin delivery gives the opportunity for corticoid and antibiotics administration--procedures that decrease the infant morbidity and mortality. We report a case of the second twin's retention after miscarriage of the first at 17th week of pregnancy. The delay time was of 126 days (18 weeks). Pregnancy like this is at increased risk for all maternal complications, in particular intrauterine infection. Parents consent have to be obtained after informing them about advantages and risk of such procedure. The patient was treated with tocolysis, antibiotics, corticosteroids but not previous cervix cerclage has been performed. On regards of our experience and the data from literature we conclude that when observing fetal status and maternal condition, it is possible to delay the second twin's delivery long time after the miscarriage or birth of the first one thus giving the chance to the second twin to grow more mature. The main problem is imminent infection which defines the prognosis. Cerclage does not seem to be essential for better outcome.