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  • Congenital heart disease and other heterotaxic defects in a large cohort of patients with primary ciliary dyskinesia #MMPMID17515466
  • Kennedy MP; Omran H; Leigh MW; Dell S; Morgan L; Molina PL; Robinson BV; Minnix SL; Olbrich H; Severin T; Ahrens P; Lange L; Morillas HN; Noone PG; Zariwala MA; Knowles MR
  • Circulation 2007[Jun]; 115 (22): 2814-21 PMID17515466show ga
  • BACKGROUND: Primary ciliary dyskinesia (PCD) is a recessive genetic disorder that is characterized by sinopulmonary disease and reflects abnormal ciliary structure and function. Situs inversus totalis occurs in approximately 50% of PCD patients (Kartagener's syndrome in PCD), and there are a few reports of PCD with heterotaxy (situs ambiguus), such as cardiovascular anomalies. Advances in diagnosis of PCD, such as genetic testing, allow the systematic investigation of this association. METHODS AND RESULTS: The prevalence of heterotaxic defects was determined in 337 PCD patients by retrospective review of radiographic and ultrasound data. Situs solitus (normal situs) and situs inversus totalis were identified in 46.0% and 47.7% of patients, respectively, and 6.3% (21 patients) had heterotaxy. As compared with patients with situs solitus, those with situs abnormalities had more ciliary outer dynein arm defects, fewer inner dynein arm and central apparatus defects (P<0.001), and more mutations in ciliary outer dynein arm genes (DNAI1 and DNAH5; P=0.022). Seven of 12 patients with heterotaxy who were genotyped had mutations in DNAI1 or DNAH5. Twelve patients with heterotaxy had cardiac and/or vascular abnormalities, and most (8 of 12 patients) had complex congenital heart disease. CONCLUSIONS: At least 6.3% of patients with PCD have heterotaxy, and most of those have cardiovascular abnormalities. The prevalence of congenital heart disease with heterotaxy is 200-fold higher in PCD than in the general population (1:50 versus 1:10 000); thus, patients with PCD should have cardiac evaluation. Conversely, mutations in genes that adversely affect both respiratory and embryological nodal cilia are a significant cause of heterotaxy and congenital heart disease, and screening for PCD is indicated in those patients.
  • |Abdomen/abnormalities[MESH]
  • |Cardiovascular Abnormalities/*epidemiology[MESH]
  • |Cohort Studies[MESH]
  • |Congenital Abnormalities/*epidemiology[MESH]
  • |Heart Defects, Congenital/*epidemiology[MESH]
  • |Humans[MESH]
  • |Kartagener Syndrome/*complications[MESH]
  • |Prevalence[MESH]
  • |Retrospective Studies[MESH]
  • |Thorax/abnormalities[MESH]

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  • suck abstract from ncbi

    2814 22.115 2007