Aim: The objectives of this study were 1) to compare early mortality (first 30 d after surgery) and long-term survival between two cohorts of patients operated on for congenital cardiac defects, and 2) to evaluate the...Aim: The objectives of this study were 1) to compare early mortality (first 30 d after surgery) and long-term survival between two cohorts of patients operated on for congenital cardiac defects, and 2) to evaluate the impact of possible changes in early mortality on long-term survival. Methods: 945 patients with congenital cardiac defects, born in 1990-1999 and operated on in the same period were examined in a retrospective cohort study. The patients were divided into three groups: “ univentricular cardiac defects” , “ severe cardiac defects” and “ less severe cardiac defects” . The study population was divided into two cohorts: group 1 included patients born and operated on in 1990-1994; group 2 included patients born and operated on in 1995-1999. The survival patterns in the two groups were compared. Results: For all patients, except those with univentricular cardiac defects, early mortality (30 d after surgery) was reduced. Among patients with severe cardiac defects, early mortality was reduced from 18.6% in group 1 to 2.9% in group 2. Among patients with less severe cardiac defects, early mortality was reduced from 6.2% to 1.9% . The improved outcome was maintained during the following 5 y. Overall relative risk of death during follow-up was reduced to 0.31 (95% CI: 0.15-0.56) for patients with severe cardiac defects, and to 0.53 (95% CI: 0.31-0.93) for patients with less severe cardiac defects born and operated on in 1995-1999. Conclusion: Early mortality has been substantially reduced in congenital heart defect patients, and corresponds with significantly improved long-term survival.展开更多
Objective: The purpose of this study was to assess the association between previous maternal Toxoplasma gondii (T gondii) infection and risk of fetal death. Study design: This was a population-based prospective cohort...Objective: The purpose of this study was to assess the association between previous maternal Toxoplasma gondii (T gondii) infection and risk of fetal death. Study design: This was a population-based prospective cohort of 29,912 pregnant women without acute T gondii infection in Norway. Results: In the study population, 2937 (9.8% ) women had evidence of previous maternal T gondii infection, and 299 (1.0% ) had fetal deaths. We found no association between previous T gondii infection and risk of fetal death at ≥ 20 weeks of gestation. We did find a trend for an increased risk of fetal death at ≥ 16 and < 20 weeks of gestation. However, we noted no association between previous T gondii infection and risk of fetal death at all birth weight categories (≥ 1000, ≥ 500 and <1000, and < 500 g). Conclusion: These data do not indicate an increased risk of fetal death at ≥ 20 weeks of gestation in women with previous maternal T gondii infection.展开更多
文摘Aim: The objectives of this study were 1) to compare early mortality (first 30 d after surgery) and long-term survival between two cohorts of patients operated on for congenital cardiac defects, and 2) to evaluate the impact of possible changes in early mortality on long-term survival. Methods: 945 patients with congenital cardiac defects, born in 1990-1999 and operated on in the same period were examined in a retrospective cohort study. The patients were divided into three groups: “ univentricular cardiac defects” , “ severe cardiac defects” and “ less severe cardiac defects” . The study population was divided into two cohorts: group 1 included patients born and operated on in 1990-1994; group 2 included patients born and operated on in 1995-1999. The survival patterns in the two groups were compared. Results: For all patients, except those with univentricular cardiac defects, early mortality (30 d after surgery) was reduced. Among patients with severe cardiac defects, early mortality was reduced from 18.6% in group 1 to 2.9% in group 2. Among patients with less severe cardiac defects, early mortality was reduced from 6.2% to 1.9% . The improved outcome was maintained during the following 5 y. Overall relative risk of death during follow-up was reduced to 0.31 (95% CI: 0.15-0.56) for patients with severe cardiac defects, and to 0.53 (95% CI: 0.31-0.93) for patients with less severe cardiac defects born and operated on in 1995-1999. Conclusion: Early mortality has been substantially reduced in congenital heart defect patients, and corresponds with significantly improved long-term survival.
文摘Objective: The purpose of this study was to assess the association between previous maternal Toxoplasma gondii (T gondii) infection and risk of fetal death. Study design: This was a population-based prospective cohort of 29,912 pregnant women without acute T gondii infection in Norway. Results: In the study population, 2937 (9.8% ) women had evidence of previous maternal T gondii infection, and 299 (1.0% ) had fetal deaths. We found no association between previous T gondii infection and risk of fetal death at ≥ 20 weeks of gestation. We did find a trend for an increased risk of fetal death at ≥ 16 and < 20 weeks of gestation. However, we noted no association between previous T gondii infection and risk of fetal death at all birth weight categories (≥ 1000, ≥ 500 and <1000, and < 500 g). Conclusion: These data do not indicate an increased risk of fetal death at ≥ 20 weeks of gestation in women with previous maternal T gondii infection.
