CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 4,577 enrolled
Drug / intervention
Survey: Berlin questionnaireprocedure
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT00462306
NCT00462306N/ACompleted

Incidence of Obstructive Sleep Apnea in Pregnancy

Northwestern University·observational·Posted Apr 19, 2007·Updated Apr 14, 2014

In Brief

An observational study evaluating Survey: Berlin questionnaire for Obstructive Sleep Apnea and Pregnancy. Completed, enrolled 4,577 participants across 1 site.

Detailed Summary

Obstructive sleep apnea is a condition characterized by obstruction of the upper airways and episodes of apnea and hypopnea during sleep. It is associated with significant adverse health effects. The incidence of obstructive sleep apnea in the general female population is approximately 2% but the incidence of obstructive sleep apnea in pregnancy is unknown. There is some evidence that pregnancy precipitates or at least exacerbates this condition and that there may be a relationship between intrauterine fetal growth retardation and maternal preeclampsia. In addition, there are several anesthetic implications that are concern for the patient with obstructive sleep apnea. These include: exquisite sensitivity to all central nervous system depressant drugs and the potential for upper airway obstruction or apnea with even minimal drug doses; difficult mask ventilation; difficult intubation; arterial hypoxemia; arterial hypercarbia; polycythemia; hypertension; pulmonary hypertension and cardiac failure. All of these conditions pose significant anesthetic risk for the patient, and this risk may be increased further by pregnancy.

Study Details

Study Typeobservational
Allocation--
Masking--
Primary Purpose--
CountriesUnited States
Collaborators--

Timeline

N/ACompletedFinished
2006200720082009201020112012201320142015201620172018201920202021202220232024202520262027
First PostedApr 19, 2007
Enrollment StartSep 1, 2005
Primary CompletionJun 1, 2008
TodayJul 2, 2026
Enrollment to primary: 2.8 yearsPosted 19.2 years ago

Interventions

Survey: Berlin questionnaireprocedure

Completion of questionnaire