• 1
    Schwartz PJ, Stramba-Badiale M, Segantini A, et al. Prolongation of the QT interval and the Sudden Infant Death Syndrome. N Engl J Med 1998;338: 17091714.
  • 2
    Garson A, Dick M, Fournier A, et al. The long QT syndrome in children. Circulation 1993;87: 18661872.
  • 3
    Vincent GM, Timothy KW, Leppert M, Keating M. The spectrum of symptoms and QT intervals in carriers of the gene for the long-QT syndrome. N Engl J Med 1992;327(12):846852 (September 17).
  • 4
    Beinder E, Grancay T, Menéndez T, et al. Fetal sinus bradycardia and the long QT sydrome. Am J Obstet Gynecol 2001;185: 743747.
  • 5
    Chauhan VS, Krahn AD, Walker BD, et al. Sex differences in QTc interval and QT dispersion: dynamics during exercise and recovery in healthy subjects. Am Heart J 2002;144(5):858864.
  • 6
    Davey P, Bateman J. Heart rate and catecholamine contribution to QT interval shortening on exercise. Clin Cardiol 1999;22(8):513518.
  • 7
    Abildskov JA. Adrenergic effects on the QT interval of the electrocardiogram. Am Heart J 1976;92: 210216.
  • 8
    Vincent GM, Jaiswal D, Timothy KW. Effects of exercise on heart rate, QT, QTc and QT/QS2 in the Romano-Ward inherited long QT syndrome. Am J Cardiol 1991;68(5):498503.
  • 9
    Davey P. QT interval lengthening in cardiac disease relates more to left ventricular systolic dysfunction than to autonomic function. Eur J Heart Fail 2000;2(3):265271.
  • 10
    Karjalainen J, Viitasalo M. Fever and cardiac rhythm. Arch Intern Med 1986;146(6):11691171.
  • 11
    Ramamurthy S, Talwar KK, Goswami KC, et al. Clinical profile of biopsy proven idiopathic myocarditis. Int J Cardiol 1993;41(3):225232.
  • 12
    Luzietti R, Erkkola R, Hasbargen U, et al. European community multi-center trial ‘Fetal ECG analysis during labour’: ST plus CTG analysis. J Perinat Med 1999;27: 431440.
  • 13
    Amer-Wåhlin I, Hellsten C, Norén H, et al. Cardiotocography only versus cardiotocography plus ST analysis of the fetal ECG for intrapartum monitoring. A Swedish randomized controlled trial. Lancet 2001;358: 534538.
  • 14
    Amer-Wåhlin I, Bördahl P, Eikeland T, et al. ST analysis of the fetal electrocardiogram during labor: Nordic observational multicenter study. J Matern Fetal Neonatal Med 2002;12: 260266.
  • 15
    Siggaard-Andersen O. An acid base chart for arterial blood with normal and pathophysiological reference areas. Scand J Clin Lab Invest 1971;27: 239245.
  • 16
    Rosén KG, Dagbjartsson A, Henriksson BA, et al. The relationship between circulating catecholamines and ST waveform in the fetal lamb electrocardiogram during hypoxia. Am J Obstet Gynecol 1984;149: 190195.
  • 17
    Dagbjartsson A, Herbertsson G, Stefansson TS, et al. Beta-adrenoceptor agonists and hypoxia in sheep fetuses. Acta Physiol Scand 1989;137: 291299.
  • 18
    Hökegård KH, Eriksson BO, Kjellmer I, et al. Myocardial metabolism in relation to electrocardiographic changes and cardiac function during graded hypoxia in the fetal lamb. Acta Physiol Scand 1981;113117.
  • 19
    Algra A, Roelandt JR, Tijssen JG, Simoons ML, Pool J. Effect of beta-blockers on the relation between QT-interval and heart rate in exercise ECG. Eur Heart J 1987;8(Suppl D):7173.