Hemodynamics Response to Upper Airway Obstruction in Marfan Syndrome

Completed · Not applicable

Conditions studied: Sleep-disordered Breathing, Snoring

In brief

Upper airway obstruction (UAO) is an unrecognized source of hemodynamic stress that may contribute to aortic adverse events in persons with Marfan Syndrome (MFS). UAO occurs during snoring and sleep apnea and is characterized by repetitive partial or complete obstruction of the upper airway during sleep. These obstructive breathing events lead to intermittent surges in blood pressure (BP) REF and large decreases in pleural pressure (Pes), thereby increasing the trans-mural aortic pressure (TMP) and imposing mechanical stress on the aorta during sleep. Although UAO is known to increase mechanical stress on the aorta, the magnitude of the increase is not known for persons with MFS. In this project, therefore, the investigators will also examine the changes in Pes and BP responses in periods of obstructed breathing and compare the diurnal markers or vascular stress between Baseline and CPAP studies in MFS persons.

Key facts

Study ID
NCT03985657
Run by
Johns Hopkins University
People needed
31
Starts
2018-06-06
Expected to finish
2019-12-06
Last updated by the study team
2020-12-28

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: accepted.

You may qualify if…

You may not qualify if…

Where it is running

Full record on ClinicalTrials.gov

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