Abstract

The Long QT Syndrome (LQTS) is a group of diseases in which patients have prolongation of the QT interval on the electrocardiogram (ECG). This interval represents repolarization of the heart. These patients are at risk of death due to a syndrome that has a genetic basis in most individuals. Genetic typing can identify patients and family members at risk of development of this syndrome. This is important because therapy is available which can effectively treat this problem and significantly reduce the mortality. This protocol will study patients with suspected LQTS and their families by performing a medical history, and ECG and a 24-hour Holter monitoring. In addition, blood will be drawn for analysis of the genetic structure. Subjects will also under go a noninvasive test called T wave alternans analysis, which involves wearing adhesive electrodes for approximately 30 minutes during rest and mild exercise, while a computer detects and quantifies subtle abnormalities of the T wave.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
General Clinical Research Centers Program (M01)
Project #
5M01RR000080-38
Application #
6420815
Study Section
National Center for Research Resources Initial Review Group (RIRG)
Project Start
1978-12-01
Project End
2003-11-30
Budget Start
Budget End
Support Year
38
Fiscal Year
2000
Total Cost
Indirect Cost

  Institution

Name
Case Western Reserve University
Department
Type
DUNS #
077758407
City
Cleveland
State
OH
Country
United States
Zip Code
44106

  Publications

Randis, Tara M; Rice, Madeline Murguia; Myatt, Leslie et al. (2018) Incidence of early-onset sepsis in infants born to women with clinical chorioamnionitis. J Perinat Med 46:926-933
Clark, Erin A S; Weiner, Steven J; Rouse, Dwight J et al. (2018) Genetic Variation, Magnesium Sulfate Exposure, and Adverse Neurodevelopmental Outcomes Following Preterm Birth. Am J Perinatol 35:1012-1022
Askie, Lisa M; Darlow, Brian A; Finer, Neil et al. (2018) Association Between Oxygen Saturation Targeting and Death or Disability in Extremely Preterm Infants in the Neonatal Oxygenation Prospective Meta-analysis Collaboration. JAMA 319:2190-2201
Saade, G R; Thom, E A; Grobman, W A et al. (2018) Cervical funneling or intra-amniotic debris and preterm birth in nulliparous women with midtrimester cervical length less than 30 mm. Ultrasound Obstet Gynecol 52:757-762
Inker, Lesley A; Grams, Morgan E; Levey, Andrew S et al. (2018) Relationship of Estimated GFR and Albuminuria to Concurrent Laboratory Abnormalities: An Individual Participant Data Meta-analysis in a Global Consortium. Am J Kidney Dis :
Juraschek, Stephen P; Miller 3rd, Edgar R; Appel, Lawrence J (2018) Orthostatic Hypotension and Symptoms in the AASK Trial. Am J Hypertens 31:665-671
Di Fiore, Juliann M; Martin, Richard J; Li, Hong et al. (2017) Patterns of Oxygenation, Mortality, and Growth Status in the Surfactant Positive Pressure and Oxygen Trial Cohort. J Pediatr 186:49-56.e1
Osman, Ahmed Fageer; Thomas, Biju; Singh, Nakul et al. (2017) Impact of Infant-Polysomnography Studies on Discharge Management and Outcomes: A 5 Year Experience from a Tertiary Care Unit. J Neonatal Biol 6:
Tita, Alan T N; Lai, Yinglei; Landon, Mark B et al. (2017) Predictive Characteristics of Elevated 1-Hour Glucose Challenge Test Results for Gestational Diabetes. Am J Perinatol 34:1464-1469
Grams, Morgan E; Yang, Wei; Rebholz, Casey M et al. (2017) Risks of Adverse Events in Advanced CKD: The Chronic Renal Insufficiency Cohort (CRIC) Study. Am J Kidney Dis 70:337-346

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