A new insight on postural tachycardia syndrome in 102 adults with hypermobile Ehlers-Danlos Syndrome/hypermobility spectrum disorder
There is an association between joint hypermobility, hypermobile Ehlers-Danlos syndrome (hEDS) and different forms of orthostatic intolerance. Objective: to explore autonomic profile in a large cohort of adults with hEDS and hypermobility spectrum disorder (hEDS/HSD) with a multimodal approach. In this observational retrospective study, heart rate, blood pressure and baroreflex sensitivity were estimated in 102 hEDS/HSD subjects during deep breathing, Valsalva maneuver, standing up: 30-15 ratio, Head-Up Tilt and sustained handgrip. Abnormal results and head-up tilt test were common and included postural orthostatic tachycardia syndrome (POTS; 48%), orthostatic intolerance (25.5%) and hypotension (3.9%). Baroreflex sensitivity was significantly different in individuals with POTS compared to the others. This study confirms the high rate and heterogeneity of abnormal autonomic regulation in hEDS/HSD, and suggests the baroreflex sensitivity might distinguish comorbid POTS from other profiles in this subgroup of patients. Abnormal autonomic regulation is common in adults with hEDS/HSD and should be regularly assessed for tailoring the management approach.
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