{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,12]],"date-time":"2026-09-12T09:35:17Z","timestamp":1789205717675,"version":"build-2803163510"},"reference-count":31,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2011,12,13]],"date-time":"2011-12-13T00:00:00Z","timestamp":1323734400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Pediatric Pulmonology"],"published-print":{"date-parts":[[2012,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Familial dysautonomia (FD) is a profound sensory and autonomic nervous system disorder associated with an increased risk for sudden death. While bradycardia resulting from loss of sympathetic tone has been hypothesized to play a role in this mortality, extended in\u2010home monitoring has failed to find evidence of low heart rates in children with FD. In order to better characterize the specific cardio\u2010respiratory pathophysiology and autonomic dysregulation in patients with FD, 25 affected children and matched controls were studied with in\u2010home technology, during day and night. Respiratory and heart rate timing and variability metrics were derived from inductance plethysmography and electrocardiogram signals. Selective shortening of inspiratory time produced an overall increase in respiratory frequency in children with FD, with higher daytime respiratory variability (vs. controls), suggesting alterations in central rhythm generating circuits that may contribute to the heightened risk for sudden death. Overall heart rate was increased and variability reduced in FD cases, with elevated heart rates during 20% of study time. Time and frequency domain measures of autonomic tone indicated lower parasympathetic drive in FD patients (vs. controls). These results suggest withdrawal of vagal, rather than sympathetic tone, as a cause for the sustained increase and dramatic lability in respiration and heart rates that characterize this disorder. Pediatr Pulmonol. 2012; 47:682\u2013691. \u00a9 2011 Wiley Periodicals, Inc.<\/jats:p>","DOI":"10.1002\/ppul.21600","type":"journal-article","created":{"date-parts":[[2011,12,13]],"date-time":"2011-12-13T21:26:49Z","timestamp":1323811609000},"page":"682-691","source":"Crossref","is-referenced-by-count":23,"title":["Respiratory and cardiovascular indicators of autonomic nervous system dysregulation in familial dysautonomia"],"prefix":"10.1002","volume":"47","author":[{"given":"Michael S.","family":"Carroll","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anna S.","family":"Kenny","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pallavi 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