Publications by authors named "James P Crane"
Objective: To estimate the risk of adverse pregnancy outcomes associated with the presence of leiomyomas.
Methods: This was a retrospective cohort study of all consecutive singleton pregnancies from 1990 to 2007 undergoing routine second-trimester fetal anatomic ultrasound survey. The presence or absence of leiomyomas was noted at second-trimester ultrasound examination.
Objective: To derive coefficients for developing a customized growth chart for a Mid-Western US population, and to estimate the association between pregnancy outcomes and smallness for gestational age (SGA) defined by the customized growth chart compared with a population-based growth chart for the USA.
Method: A retrospective cohort study of an ultrasound database using 54,433 pregnancies meeting inclusion criteria was conducted. Coefficients for customized centiles were derived using 42,277 pregnancies and compared with those obtained from other populations.
Objective: To estimate the association between the ultrasonographic diagnosis of subchorionic hemorrhage and adverse pregnancy outcomes.
Methods: This was a retrospective cohort study of all consecutive women undergoing routine ultrasonography before 22 weeks with a singleton gestation at one institution from 1994 to 2008. Presence or absence of subchorionic hemorrhage defined the two study groups.
Objective: To estimate the association between placenta previa and abnormal fetal growth.
Study Design: Retrospective cohort study of consecutive women undergoing ultrasound between 15 and 22 weeks. Groups were defined by the presence or absence of complete or partial placenta previa.
Objective: To estimate whether the presence of a single umbilical artery is associated with intrauterine growth restriction (IUGR), fetal demise, or major congenital anomalies.
Methods: We performed a retrospective cohort study of all consecutive singleton pregnancies undergoing routine anatomic survey between 1990 and 2007 at a major tertiary medical center. Two dedicated research nurses obtained complete pregnancy outcome data in an ongoing manner.
Objective: The purpose of this study was to estimate the attributable pregnancy loss rate of mid-trimester amniocentesis in twin pregnancies.
Study Design: A 16-year retrospective cohort of all twin pregnancies that underwent ultrasound evaluation at a large tertiary care medical center was followed for pregnancy outcomes. Women who underwent amniocentesis were compared with those who did not.
Objective: To estimate the fetal loss rate in our center and evaluate the risk factors associated with such losses after chorionic villus sampling (CVS).
Methods: This is a retrospective cohort study including all women undergoing chorionic villus sampling and a control group that had no invasive procedure at a single center over a 16-year period. Fetal loss was defined as any loss before 24 weeks of gestation.
Objective: To estimate an institution's specific fetal loss rate after a second-trimester genetic amniocentesis.
Methods: This is a retrospective cohort study using our prenatal diagnosis database for all pregnant women presenting for care between 1990 and 2006. We compared the fetal loss rate in women who underwent amniocentesis between 15 and 22 weeks of gestation with those women who did not have any invasive procedure and had a live fetus documented on ultrasound examination between 15 and 22 weeks.