Page last updated: 2024-11-03

propranolol and Long QT Syndrome

propranolol has been researched along with Long QT Syndrome in 86 studies

Propranolol: A widely used non-cardioselective beta-adrenergic antagonist. Propranolol has been used for MYOCARDIAL INFARCTION; ARRHYTHMIA; ANGINA PECTORIS; HYPERTENSION; HYPERTHYROIDISM; MIGRAINE; PHEOCHROMOCYTOMA; and ANXIETY but adverse effects instigate replacement by newer drugs.
propranolol : A propanolamine that is propan-2-ol substituted by a propan-2-ylamino group at position 1 and a naphthalen-1-yloxy group at position 3.

Long QT Syndrome: A condition that is characterized by episodes of fainting (SYNCOPE) and varying degree of ventricular arrhythmia as indicated by the prolonged QT interval. The inherited forms are caused by mutation of genes encoding cardiac ion channel proteins. The two major forms are ROMANO-WARD SYNDROME and JERVELL-LANGE NIELSEN SYNDROME.

Research Excerpts

ExcerptRelevanceReference
" We describe two cases where a switch to bisoprolol resulted in worsening of arrhythmia control: A man with LQT2, asymptomatic on propranolol, experienced syncope after switching to bisoprolol 5 mg daily."7.83Two Cases of LQT Syndrome with Malignant Syncope after Switch from Propranolol to Bisoprolol. ( Jensen, SM; Kesek, M; Rydberg, A, 2016)
" This positive lidocaine challenge prompted clinical suspicion of long QT syndrome type 3 (LQT3) and early initiation of mexiletine therapy."7.76Neonatal long QT syndrome type 3 predicted by positive lidocaine challenge. ( Bailey, A; DI Maria, M; Howley, LW; Schaffer, MS, 2010)
"The effects of adrenergic activity and beta-blockade were studied in a canine experimental model of type-3 long QT syndrome (LQT3) induced by application of anthopleurin-A."7.74Antiarrhythmic vs. pro-arrhythmic effects depending on the intensity of adrenergic stimulation in a canine anthopleurin-A model of type-3 long QT syndrome. ( Ahara, S; Aizawa, Y; Chinushi, M; Furushima, H; Hosaka, Y; Iijima, K; Izumi, D; Komura, S, 2008)
"This study used monophasic action potentials to investigate the effects of verapamil and propranolol on epinephrine-induced repolarization abnormalities in congenital long QT syndrome."7.69Effects of verapamil and propranolol on early afterdepolarizations and ventricular arrhythmias induced by epinephrine in congenital long QT syndrome. ( Aihara, N; Arakaki, Y; Kamakura, S; Kamiya, T; Kawade, M; Kurita, T; Ohe, T; Shimizu, W; Shimomura, K, 1995)
" In the present study, the effects of intravenous administration of prostacyclin (PGI2) and prostaglandin E2 (PGE2) on early afterdepolarizations and ventricular tachycardia induced by cesium chloride (0."7.68Prostaglandin modulation of early afterdepolarizations and ventricular tachyarrhythmias induced by cesium chloride combined with efferent cardiac sympathetic stimulation in dogs. ( Miyazaki, T; Pride, HP; Zipes, DP, 1990)
" After propranolol iv it was no more possible to induce major ventricular arrhythmias anymore."7.67[Torsade de pointes during an atropine sulfate test in a patient with congenital long QT syndrome]. ( Beccaria, E; Brun, S; Conti, M; Gaita, F; Giustetto, C, 1989)
"Propranolol has a significantly better QTc shortening effect compared to metoprolol and nadolol, especially in patients with prolonged QTc."5.38Not all beta-blockers are equal in the management of long QT syndrome types 1 and 2: higher recurrence of events under metoprolol. ( Ackerman, MJ; Beckmann, BM; Blom, NA; Chockalingam, P; Clur, SA; Crotti, L; Fischer, M; Girardengo, G; Harris, KM; Hauer, RN; Johnson, JN; Kääb, S; Rordorf, R; Rydberg, A; Schwartz, PJ; Spazzolini, C; van den Heuvel, F; van der Heijden, JF; Wilde, AA, 2012)
" We describe two cases where a switch to bisoprolol resulted in worsening of arrhythmia control: A man with LQT2, asymptomatic on propranolol, experienced syncope after switching to bisoprolol 5 mg daily."3.83Two Cases of LQT Syndrome with Malignant Syncope after Switch from Propranolol to Bisoprolol. ( Jensen, SM; Kesek, M; Rydberg, A, 2016)
"Beta-adrenergic receptor antagonists (β-blockers) are the therapy of choice for the long QT syndrome but their efficacy is not homogeneous: propranolol and nadolol are the most effective, whereas metoprolol is associated with more treatment failures."3.78Nadolol block of Nav1.5 does not explain its efficacy in the long QT syndrome. ( Besana, A; George, AL; Schwartz, PJ; Wang, DW, 2012)
" This positive lidocaine challenge prompted clinical suspicion of long QT syndrome type 3 (LQT3) and early initiation of mexiletine therapy."3.76Neonatal long QT syndrome type 3 predicted by positive lidocaine challenge. ( Bailey, A; DI Maria, M; Howley, LW; Schaffer, MS, 2010)
"The effects of adrenergic activity and beta-blockade were studied in a canine experimental model of type-3 long QT syndrome (LQT3) induced by application of anthopleurin-A."3.74Antiarrhythmic vs. pro-arrhythmic effects depending on the intensity of adrenergic stimulation in a canine anthopleurin-A model of type-3 long QT syndrome. ( Ahara, S; Aizawa, Y; Chinushi, M; Furushima, H; Hosaka, Y; Iijima, K; Izumi, D; Komura, S, 2008)
" Prenatal treatment with beta-adrenergic blocker (propranolol) and digitalis glycosides was prescribed because of suspicion of long QT syndrome occurring with fetal congestive heart failure."3.71Prenatal diagnosis and treatment of fetal long QT syndrome: a case report. ( Chang, IK; Chow, SN; Hsieh, FJ; Kau, ML; Ko, YH; Lee, CN; Shyu, MK, 2002)
"This study used monophasic action potentials to investigate the effects of verapamil and propranolol on epinephrine-induced repolarization abnormalities in congenital long QT syndrome."3.69Effects of verapamil and propranolol on early afterdepolarizations and ventricular arrhythmias induced by epinephrine in congenital long QT syndrome. ( Aihara, N; Arakaki, Y; Kamakura, S; Kamiya, T; Kawade, M; Kurita, T; Ohe, T; Shimizu, W; Shimomura, K, 1995)
" In the present study, the effects of intravenous administration of prostacyclin (PGI2) and prostaglandin E2 (PGE2) on early afterdepolarizations and ventricular tachycardia induced by cesium chloride (0."3.68Prostaglandin modulation of early afterdepolarizations and ventricular tachyarrhythmias induced by cesium chloride combined with efferent cardiac sympathetic stimulation in dogs. ( Miyazaki, T; Pride, HP; Zipes, DP, 1990)
" After propranolol iv it was no more possible to induce major ventricular arrhythmias anymore."3.67[Torsade de pointes during an atropine sulfate test in a patient with congenital long QT syndrome]. ( Beccaria, E; Brun, S; Conti, M; Gaita, F; Giustetto, C, 1989)
"Long QT syndrome is an inherited malignant channelopathy which leads to life-threatening arrhythmia, with multiple genotypes."1.91Left cardiac sympathetic denervation in children with Jervell Lange-Nielsen syndrome and drug refractory torsades - A case series. ( Bhattacharya, D; Dharan, BS; Menon, S; Namboodiri, N; Prabhu, MA; Sreelekshmi, MP; Sreevilasam Pushpangadhan, A; Valaparambil, A, 2023)
" Gastric involvement and achlorhydria may be present, with subsequent alteration of medication bioavailability which can trigger severe arrhythmic complications."1.62Propranolol syrup to tablets change triggers electrical storm in Jervell-Lange-Nielsen syndrome. ( Moreno-Mata, N; Moreno-Planas, J; Ramos-Jiménez, J; Sánchez-Perez, I, 2021)
" Chronic dosing of propranolol may be required for efficacy; therefore, we tested the efficacy of chronic treatment with either propranolol or phenytoin on RTT mice."1.42Treatment of cardiac arrhythmias in a mouse model of Rett syndrome with Na+-channel-blocking antiepileptic drugs. ( Glaze, DG; Herrera, JA; Kaufmann, WE; Neul, JL; Percy, AK; Pitcher, MR; Skinner, S; Ward, CS; Wehrens, XH, 2015)
"Hypoglycemia is a potential side effect of beta-blockers; however, no cases have been reported in children with long QT syndrome (LQTS)."1.42Frequency and severity of hypoglycemia in children with beta-blocker-treated long QT syndrome. ( Ackerman, MJ; Bos, JM; Cannon, BC; Poterucha, JT, 2015)
"Propranolol has a significantly better QTc shortening effect compared to metoprolol and nadolol, especially in patients with prolonged QTc."1.38Not all beta-blockers are equal in the management of long QT syndrome types 1 and 2: higher recurrence of events under metoprolol. ( Ackerman, MJ; Beckmann, BM; Blom, NA; Chockalingam, P; Clur, SA; Crotti, L; Fischer, M; Girardengo, G; Harris, KM; Hauer, RN; Johnson, JN; Kääb, S; Rordorf, R; Rydberg, A; Schwartz, PJ; Spazzolini, C; van den Heuvel, F; van der Heijden, JF; Wilde, AA, 2012)
"Carvedilol has a class III antiarrhythmic effect, which may provide the rationale for a favourable clinical outcome compared with other beta-blockers as suggested in the recent COMET (Carvedilol Or Metoprolol European Trial) substudy."1.33Comparison of HERG channel blocking effects of various beta-blockers-- implication for clinical strategy. ( Abe, H; Anson, BD; Delisle, BP; January, CT; Kawakami, K; Kikuchi, K; Nagatomo, T; Nakashima, Y; Takemasa, H, 2006)
"Propranolol was started on all children with LQTS."1.31The congenital long QT syndrome. ( Govindakumar, PT; Joshi, V; Shahid, SK; Shanbag, P; Vaidya, M, 2002)
"However, the incidence of sudden death and aborted sudden death (24% in all patients and 17% in compliant patients) strongly suggests the use of a "back-up" defibrillator, particularly in noncompliant adolescent patients."1.30Long-term follow-up of patients with long-QT syndrome treated with beta-blockers and continuous pacing. ( Belhassen, B; Dorostkar, PC; Eldar, M; Scheinman, MM, 1999)
"The right bundle branch block group had normal JT and JTc measurements, despite having prolonged QT and QTc intervals compared with controls."1.29Use of the rate-corrected JT interval for prediction of repolarization abnormalities in children. ( Berul, CI; Dubin, AM; Shah, MJ; Sweeten, TL; Vetter, VL, 1994)
"Torsade de pointes (TdP) syncopal episodes were almost invariably precipitated by emotional stress or menstruation in a 17-year-old girl."1.28Role of early afterdepolarization in familial long QTU syndrome and torsade de pointes. ( Liu, WY; Zheng, LR; Zhou, JT, 1992)
"The treatment with propranolol was most effective."1.28[A case of congenital long QT syndrome associated with T wave alternans]. ( Aoki, T; Kakuta, Y; Kasai, A; Motoyasu, M; Nishikawa, H; Ono, N; Shimizu, Y; Unno, M; Yamakado, T; Yazu, T, 1992)
" Prazosin produced a dose-response decrease in EAD amplitude and reduced the prevalence of VT."1.28Alpha-adrenoceptor stimulation and blockade modulates cesium-induced early afterdepolarizations and ventricular tachyarrhythmias in dogs. ( Ben-David, J; Zipes, DP, 1990)

Research

Studies (86)

TimeframeStudies, this research(%)All Research%
pre-199010 (11.63)18.7374
1990's27 (31.40)18.2507
2000's27 (31.40)29.6817
2010's18 (20.93)24.3611
2020's4 (4.65)2.80

Authors

AuthorsStudies
Comollo, TW1
Zou, X1
Zhang, C1
Kesters, D1
Hof, T1
Sampson, KJ1
Kass, RS2
Bhattacharya, D1
Namboodiri, N1
Sreelekshmi, MP1
Prabhu, MA1
Sreevilasam Pushpangadhan, A1
Menon, S1
Dharan, BS1
Valaparambil, A1
Ramos-Jiménez, J1
Sánchez-Perez, I1
Moreno-Mata, N1
Moreno-Planas, J1
Vaksmann, G1
Lucidarme, S1
Henriet, E1
Asatryan, B1
Schaller, A1
Bartholdi, D1
Medeiros-Domingo, A1
Wang, Y1
Shen, T1
Fang, P1
Zhou, J2
Lou, K1
Cen, Z1
Qian, H1
Liu, N1
Lian, J1
Montnach, J1
Chizelle, FF1
Belbachir, N1
Castro, C1
Li, L2
Loussouarn, G1
Toumaniantz, G1
Carcouët, A1
Meinzinger, AJ1
Shmerling, D1
Benitah, JP1
Gómez, AM1
Charpentier, F1
Baró, I1
Calvillo, L1
Spazzolini, C2
Vullo, E1
Insolia, R1
Crotti, L4
Schwartz, PJ8
Fabritz, L1
Franz, MR1
Carmeliet, E1
Kirchhof, P1
Abu-Zeitone, A1
Peterson, DR1
Polonsky, B1
McNitt, S1
Moss, AJ2
Herrera, JA1
Ward, CS1
Pitcher, MR1
Percy, AK1
Skinner, S1
Kaufmann, WE1
Glaze, DG1
Wehrens, XH1
Neul, JL1
Poterucha, JT1
Bos, JM1
Cannon, BC1
Ackerman, MJ2
Kesek, M1
Rydberg, A2
Jensen, SM1
Mine, T1
Shimizu, H1
Hiromoto, K1
Furukawa, Y1
Kanemori, T1
Nakamura, H1
Masuyama, T1
Ohyanagi, M1
Ahrens-Nicklas, RC1
Clancy, CE1
Christini, DJ1
Bankston, JR1
Howley, LW1
DI Maria, M1
Bailey, A1
Schaffer, MS1
Wang, DW2
Shimizu, W7
Pedrazzini, M1
Cantu, F1
De Filippo, P1
Kishiki, K1
Miyazaki, A1
Ikeda, T1
George, AL2
Aziz, PF1
Tanel, RE1
Zelster, IJ1
Pass, RH1
Wieand, TS1
Vetter, VL2
Vogel, RL1
Shah, MJ2
Besana, A1
Vahedi, F1
Odenstedt, J1
Hartford, M1
Gilljam, T1
Bergfeldt, L1
Daubert, JP1
Grant, AO1
Nilsson, KR1
Chockalingam, P1
Girardengo, G1
Johnson, JN1
Harris, KM1
van der Heijden, JF1
Hauer, RN1
Beckmann, BM1
Rordorf, R1
Clur, SA1
Fischer, M1
van den Heuvel, F1
Kääb, S1
Blom, NA1
Wilde, AA1
Chang, IK1
Shyu, MK1
Lee, CN1
Kau, ML1
Ko, YH1
Chow, SN1
Hsieh, FJ1
Bosi, G1
Cappato, R1
Priori, SG3
Stramba-Badiale, M2
Farhangi, V1
Sansone, RA1
Li, C1
Hu, D1
Qin, X1
Li, Y1
Li, P1
Liu, W1
Li, Z1
Wang, L1
Henriksen, JH2
Bendtsen, F2
Hansen, EF1
Møller, S2
Fuglsang, S1
Christensen, E1
Nakagawa, M1
Ooie, T1
Ou, B1
Ichinose, M1
Takahashi, N1
Hara, M1
Yonemochi, H1
Saikawa, T1
Kawakami, K1
Nagatomo, T1
Abe, H1
Kikuchi, K1
Takemasa, H1
Anson, BD1
Delisle, BP1
January, CT1
Nakashima, Y1
Kano, M1
Toyoshi, T1
Iwasaki, S1
Kato, M1
Shimizu, M1
Ota, T1
Jayakrishnan, MP1
Krishnakumar, P1
Drago, F1
Fazio, G1
Silvetti, MS1
Oricchio, G1
Michelon, G1
Smith, AH1
Norris, KJ1
Roden, DM1
Kannankeril, PJ1
Thomas, G1
Killeen, MJ1
Grace, AA1
Huang, CL1
Chinushi, M2
Izumi, D1
Iijima, K1
Ahara, S1
Komura, S1
Furushima, H2
Hosaka, Y1
Aizawa, Y2
Jeyaraj, D1
Abernethy, DP1
Natarajan, RN1
Dettmer, MM1
Dikshteyn, M1
Meredith, DM1
Patel, K1
Allareddy, RR1
Lewis, SA1
Kaufman, ES1
Stengl, M1
Ohe, T4
Kurita, T4
Tokuda, T1
Shimomura, K3
Kawade, M2
Arakaki, Y1
Aihara, N3
Kamakura, S3
Kamiya, T2
Solti, F2
Szatmáry, L2
Vecsey, T2
Bodor, E1
Szabolcs, Z2
Cieslinski, G1
Kadel, C1
Schräder, R1
Klepzig, H1
Berul, CI1
Sweeten, TL1
Dubin, AM1
Noble, WE1
Chaudhuri, P1
Qazi, MA1
Kajinami, K1
Takekoshi, N1
Mabuchi, H1
McCurdy, CM1
Rutherford, SE1
Coddington, CC1
Garson, A1
Dick, M1
Fournier, A1
Gillette, PC1
Hamilton, R1
Kugler, JD1
van Hare, GF1
Vetter, V1
Vick, GW1
García-Rubira, JC1
Aramburu, O1
Romero, D1
Valladolid, J1
Arias, JL1
Love, JN1
Hanfling, D1
Howell, JM1
Hsieh, MH1
Chen, SA1
Chiang, CE1
Tai, CT1
Lee, SH1
Wen, ZC1
Chang, MS1
Grönefeld, G1
Höltgen, R1
Hohnloser, SH1
Hofbeck, M1
Ulmer, H1
Beinder, E1
Sieber, E1
Singer, H1
Goulene, K1
Suyama, K2
Koçak, G1
Atalay, S1
Tutar, E1
Imamoğlu, A1
Uysalel, A1
Güldal, M1
Baines, DB1
Murrell, D1
Dorostkar, PC1
Eldar, M1
Belhassen, B1
Scheinman, MM1
Zareba, W1
Hall, WJ1
Crampton, RS1
Benhorin, J1
Vincent, GM1
Locati, EH1
Napolitano, C1
Medina, A1
Zhang, L1
Robinson, JL1
Timothy, K1
Towbin, JA2
Andrews, ML1
Antzelevitch, C2
Washizuka, T1
Colzani, RM1
Emdin, M1
Conforti, F1
Passino, C1
Scarlattini, M1
Iervasi, G1
Shanbag, P1
Govindakumar, PT1
Vaidya, M1
Joshi, V1
Shahid, SK1
Subramanyan, R1
Venugopalan, P1
Tanabe, Y1
Aiba, T1
Inagaki, M1
Nagaya, N1
Taguchi, A1
Sunagawa, K1
Nakamura, K1
Yao, CT1
Wang, JN1
Tsai, YC1
Lin, CS1
Wu, JM1
Zhou, JT1
Zheng, LR1
Liu, WY1
Motoyasu, M1
Nishikawa, H1
Shimizu, Y1
Aoki, T1
Ono, N1
Unno, M1
Kakuta, Y1
Yazu, T1
Kasai, A1
Yamakado, T1
Ben-David, J1
Zipes, DP2
Popov, SV2
Plekhanov, IG1
Antonchenko, IV1
Borisova, EV2
Savenkova, GM1
Chekhov, AM2
Mitiutnev, AN1
Timrikh, EO1
Sasaki, Y1
Hirano, K1
Midorikawa, T1
Kobayashi, T1
Furihata, Y1
Furuta, S1
Iesaka, Y1
Miyazaki, T1
Pride, HP1
Pekarskiĭ, VV1
Gimrikh, EO1
Savenkov, GG1
Beccaria, E1
Brun, S1
Gaita, F1
Giustetto, C1
Conti, M1
Pfeiffer, D1
Fiehring, H1
Henkel, HG1
Rostock, KJ1
Rathgen, K1
Wilton, NC1
Hantler, CB1
Ward, DE1
Camm, AJ1
Bassan, J1
Lopes, AC1
Brilhante, JJ1
Knobel, E1
Zeballos, R1
Pagura, JR1
Gebara, M1
Wilmer, CI1
Stein, B1
Morris, DC1
Koren, G1
Hasin, Y1

Clinical Trials (2)

Trial Overview

TrialPhaseEnrollmentStudy TypeStart DateStatus
Long QT Syndrome-Population Genetics and Cardiac Studies[NCT00005176]2,125 participants (Actual)Observational1985-08-31Completed
Electromechanical Profiling of Arrhythmogenic Substrates and Triggers in the Long-QT Syndrome[NCT04074122]150 participants (Anticipated)Observational2020-01-01Not yet recruiting
[information is prepared from clinicaltrials.gov, extracted Sep-2024]

Trials

5 trials available for propranolol and Long QT Syndrome

ArticleYear
Acute non-selective beta-adrenergic blockade reduces prolonged frequency-adjusted Q-T interval (QTc) in patients with cirrhosis.
    Journal of hepatology, 2004, Volume: 40, Issue:2

    Topics: Administration, Oral; Adrenergic beta-Antagonists; Blood Pressure; Cardiac Output; Female; Heart Rat

2004
Autonomic tone attenuates drug-induced QT prolongation.
    Journal of cardiovascular electrophysiology, 2007, Volume: 18, Issue:9

    Topics: Anti-Arrhythmia Agents; Atropine; Autonomic Nerve Block; Autonomic Nervous System; Dose-Response Rel

2007
Influence of epinephrine, propranolol, and atrial pacing on spatial distribution of recovery time measured by body surface mapping in congenital long QT syndrome.
    Journal of cardiovascular electrophysiology, 1997, Volume: 8, Issue:10

    Topics: Adolescent; Adrenergic beta-Antagonists; Adult; Body Surface Potential Mapping; Cardiac Pacing, Arti

1997
Effectiveness and limitations of beta-blocker therapy in congenital long-QT syndrome.
    Circulation, 2000, Feb-15, Volume: 101, Issue:6

    Topics: Adolescent; Adrenergic beta-Antagonists; Adult; Atenolol; Child; Child, Preschool; Female; Humans; I

2000
Role of alpha1-blockade in congenital long QT syndrome: investigation by exercise stress test.
    Japanese circulation journal, 2001, Volume: 65, Issue:7

    Topics: Adolescent; Adrenergic alpha-1 Receptor Antagonists; Adrenergic alpha-Antagonists; Adrenergic beta-A

2001

Other Studies

81 other studies available for propranolol and Long QT Syndrome

ArticleYear
Exploring mutation specific beta blocker pharmacology of the pathogenic late sodium channel current from patient-specific pluripotent stem cell myocytes derived from long QT syndrome mutation carriers.
    Channels (Austin, Tex.), 2022, Volume: 16, Issue:1

    Topics: Arrhythmias, Cardiac; Humans; Long QT Syndrome; Muscle Cells; Mutation; NAV1.5 Voltage-Gated Sodium

2022
Left cardiac sympathetic denervation in children with Jervell Lange-Nielsen syndrome and drug refractory torsades - A case series.
    Pacing and clinical electrophysiology : PACE, 2023, Volume: 46, Issue:10

    Topics: Arrhythmias, Cardiac; Child; Heart; Humans; Infant; Jervell-Lange Nielsen Syndrome; Long QT Syndrome

2023
Propranolol syrup to tablets change triggers electrical storm in Jervell-Lange-Nielsen syndrome.
    Cardiology in the young, 2021, Volume: 31, Issue:1

    Topics: Adrenergic beta-Antagonists; Arrhythmias, Cardiac; Child; Female; Humans; Jervell-Lange Nielsen Synd

2021
Fetal ventricular tachycardia: betablockers should be the first line treatment.
    Journal of gynecology obstetrics and human reproduction, 2021, Volume: 50, Issue:6

    Topics: Adrenergic beta-Antagonists; Adult; Diuretics; Female; Fetal Diseases; Fetal Monitoring; Humans; Inf

2021
Late-onset severe long QT syndrome.
    Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc, 2018, Volume: 23, Issue:4

    Topics: Aged; Anti-Arrhythmia Agents; Electrocardiography; Humans; Long QT Syndrome; Male; Propranolol; Seve

2018
The role and mechanism of chaperones Calnexin/Calreticulin in which ALLN selectively rescues the trafficking defective of HERG-A561V mutation.
    Bioscience reports, 2018, 10-31, Volume: 38, Issue:5

    Topics: Calnexin; Calreticulin; ERG1 Potassium Channel; HEK293 Cells; Humans; Leupeptins; Long QT Syndrome;

2018
Arrhythmias precede cardiomyopathy and remodeling of Ca
    Journal of molecular and cellular cardiology, 2018, Volume: 123

    Topics: Action Potentials; Animals; Calcium; Cardiomyopathies; Disease Models, Animal; Disease Progression;

2018
Propranolol prevents life-threatening arrhythmias in LQT3 transgenic mice: implications for the clinical management of LQT3 patients.
    Heart rhythm, 2014, Volume: 11, Issue:1

    Topics: Adrenergic beta-Antagonists; Animals; Cardiac Conduction System Disease; Death, Sudden, Cardiac; Dis

2014
To the Editor--Propranolol, a β-adrenoreceptor blocker, prevents arrhythmias also by its sodium channel blocking effect.
    Heart rhythm, 2014, Volume: 11, Issue:3

    Topics: Animals; Death, Sudden, Cardiac; Electrocardiography; Humans; Long QT Syndrome; Propranolol

2014
Reply to the Editor--Propranolol prevents life-threatening arrhythmias in LQT3 transgenic mice: implications for the clinical management of LQT3 patients.
    Heart rhythm, 2014, Volume: 11, Issue:3

    Topics: Animals; Death, Sudden, Cardiac; Electrocardiography; Humans; Long QT Syndrome; Propranolol

2014
Efficacy of different beta-blockers in the treatment of long QT syndrome.
    Journal of the American College of Cardiology, 2014, Sep-30, Volume: 64, Issue:13

    Topics: Adolescent; Adrenergic beta-Antagonists; Adult; Atenolol; Child; Child, Preschool; Death, Sudden, Ca

2014
Treatment of cardiac arrhythmias in a mouse model of Rett syndrome with Na+-channel-blocking antiepileptic drugs.
    Disease models & mechanisms, 2015, Volume: 8, Issue:4

    Topics: Adrenergic beta-Antagonists; Animals; Anticonvulsants; Arrhythmias, Cardiac; Disease Models, Animal;

2015
Frequency and severity of hypoglycemia in children with beta-blocker-treated long QT syndrome.
    Heart rhythm, 2015, Volume: 12, Issue:8

    Topics: Adrenergic beta-Antagonists; Blood Glucose; Child; Child, Preschool; Female; Humans; Hypoglycemia; I

2015
Two Cases of LQT Syndrome with Malignant Syncope after Switch from Propranolol to Bisoprolol.
    Pacing and clinical electrophysiology : PACE, 2016, Volume: 39, Issue:3

    Topics: Anti-Arrhythmia Agents; Antihypertensive Agents; Bisoprolol; Drug Administration Schedule; Humans; L

2016
Beat-to-beat QT interval variability is primarily affected by the autonomic nervous system.
    Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc, 2008, Volume: 13, Issue:3

    Topics: Aged; Anti-Arrhythmia Agents; Arrhythmias, Cardiac; Atrial Flutter; Atropine; Autonomic Nervous Syst

2008
Re-evaluating the efficacy of beta-adrenergic agonists and antagonists in long QT-3 syndrome through computational modelling.
    Cardiovascular research, 2009, Jun-01, Volume: 82, Issue:3

    Topics: Action Potentials; Adrenergic beta-Agonists; Adrenergic beta-Antagonists; Animals; Computer Simulati

2009
Molecular determinants of local anesthetic action of beta-blocking drugs: Implications for therapeutic management of long QT syndrome variant 3.
    Journal of molecular and cellular cardiology, 2010, Volume: 48, Issue:1

    Topics: Adrenergic beta-Antagonists; Anesthetics, Local; Carbazoles; Carvedilol; Cell Line; Electrophysiolog

2010
Neonatal long QT syndrome type 3 predicted by positive lidocaine challenge.
    Pacing and clinical electrophysiology : PACE, 2010, Volume: 33, Issue:3

    Topics: Anti-Arrhythmia Agents; Bradycardia; Electrocardiography; Female; Humans; Infant, Newborn; Lidocaine

2010
Malignant perinatal variant of long-QT syndrome caused by a profoundly dysfunctional cardiac sodium channel.
    Circulation. Arrhythmia and electrophysiology, 2008, Volume: 1, Issue:5

    Topics: Action Potentials; Anti-Arrhythmia Agents; DNA Mutational Analysis; Dose-Response Relationship, Drug

2008
Congenital long QT syndrome and 2:1 atrioventricular block: an optimistic outcome in the current era.
    Heart rhythm, 2010, Volume: 7, Issue:6

    Topics: Adrenergic beta-Antagonists; Anti-Arrhythmia Agents; Atrioventricular Block; Child; Child, Preschool

2010
Pharmacological and non-pharmacological management of the congenital long QT syndrome: the rationale.
    Pharmacology & therapeutics, 2011, Volume: 131, Issue:1

    Topics: Adrenergic beta-Antagonists; Death, Sudden, Cardiac; Defibrillators, Implantable; Humans; Long QT Sy

2011
Nadolol block of Nav1.5 does not explain its efficacy in the long QT syndrome.
    Journal of cardiovascular pharmacology, 2012, Volume: 59, Issue:3

    Topics: Adrenergic beta-Antagonists; Cell Line; Humans; Long QT Syndrome; Metoprolol; Mutation; Nadolol; NAV

2012
Vectorcardiography analysis of the repolarization response to pharmacologically induced autonomic nervous system modulation in healthy subjects.
    Journal of applied physiology (Bethesda, Md. : 1985), 2012, Volume: 113, Issue:3

    Topics: Adaptation, Physiological; Adult; Atropine; Autonomic Nervous System; Body Mass Index; Female; Heart

2012
Novel insights into beta-blocker therapy for long QT syndromes.
    Journal of the American College of Cardiology, 2012, Nov-13, Volume: 60, Issue:20

    Topics: Adrenergic beta-Antagonists; Female; Humans; Long QT Syndrome; Male; Metoprolol; Nadolol; Propranolo

2012
Not all beta-blockers are equal in the management of long QT syndrome types 1 and 2: higher recurrence of events under metoprolol.
    Journal of the American College of Cardiology, 2012, Nov-13, Volume: 60, Issue:20

    Topics: Adolescent; Adrenergic beta-Antagonists; Adult; Child; Disease-Free Survival; Electrocardiography; F

2012
Prenatal diagnosis and treatment of fetal long QT syndrome: a case report.
    Prenatal diagnosis, 2002, Volume: 22, Issue:13

    Topics: Adult; Bradycardia; Bundle-Branch Block; Electrocardiography; Female; Fetal Diseases; Heart Block; H

2002
Complex electrocardiographic findings in a neonate with long QT syndrome.
    Italian heart journal : official journal of the Italian Federation of Cardiology, 2002, Volume: 3, Issue:10

    Topics: Anti-Arrhythmia Agents; DNA Mutational Analysis; Electrocardiography; Humans; Infant, Newborn; Long

2002
QTc prolongation due to propranolol overdose.
    International journal of psychiatry in medicine, 2003, Volume: 33, Issue:2

    Topics: Adolescent; Drug Overdose; Electrocardiography; Female; Humans; Long QT Syndrome; Propranolol; Sever

2003
Clinical features and management of congenital long QT syndrome: a report on 54 patients from a national registry.
    Heart and vessels, 2004, Volume: 19, Issue:1

    Topics: Adrenergic beta-Antagonists; Adult; China; Electrocardiography; Female; Humans; Long QT Syndrome; Ma

2004
[Cirrhotic cardiomyopathy: prolonged QTc-interval and dyssynchronic electrical and mechanical systole in cirrhosis].
    Ugeskrift for laeger, 2004, Aug-23, Volume: 166, Issue:35

    Topics: Adrenergic beta-Antagonists; Adult; Aged; Cardiomyopathies; Electrocardiography; Female; Heart; Hemo

2004
Gender differences in autonomic modulation of ventricular repolarization in humans.
    Journal of cardiovascular electrophysiology, 2005, Volume: 16, Issue:3

    Topics: Adult; Atropine; Autonomic Nervous System; Disease Susceptibility; Electrophysiologic Techniques, Ca

2005
Comparison of HERG channel blocking effects of various beta-blockers-- implication for clinical strategy.
    British journal of pharmacology, 2006, Volume: 147, Issue:6

    Topics: Adrenergic beta-Antagonists; Binding Sites; Carbazoles; Cardiovascular Diseases; Carvedilol; Cell Li

2006
QT PRODACT: usability of miniature pigs in safety pharmacology studies: assessment for drug-induced QT interval prolongation.
    Journal of pharmacological sciences, 2005, Volume: 99, Issue:5

    Topics: Animals; Blood Pressure; Databases, Factual; Electrocardiography; Haloperidol; Heart Rate; Long QT S

2005
Macroscopic T wave alternans in long QT syndrome.
    Indian journal of pediatrics, 2006, Volume: 73, Issue:6

    Topics: Anti-Arrhythmia Agents; Child; Electrocardiography; Female; Humans; Long QT Syndrome; Propranolol; R

2006
A successfully novel ICD implantation and medical treatment in a child with LQT syndrome and self-limiting ventricular fibrillation.
    International journal of cardiology, 2007, Jun-12, Volume: 118, Issue:3

    Topics: Anti-Arrhythmia Agents; Child, Preschool; Combined Modality Therapy; Defibrillators, Implantable; El

2007
Pharmacological separation of early afterdepolarizations from arrhythmogenic substrate in DeltaKPQ Scn5a murine hearts modelling human long QT 3 syndrome.
    Acta physiologica (Oxford, England), 2008, Volume: 192, Issue:4

    Topics: Action Potentials; Animals; Anti-Arrhythmia Agents; Cardiac Electrophysiology; Dose-Response Relatio

2008
Antiarrhythmic vs. pro-arrhythmic effects depending on the intensity of adrenergic stimulation in a canine anthopleurin-A model of type-3 long QT syndrome.
    Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology, 2008, Volume: 10, Issue:2

    Topics: Adrenergic Agonists; Adrenergic beta-Antagonists; Animals; Disease Models, Animal; Dogs; Epinephrine

2008
I(Kr) channel blockade to unmask occult congenital long QT syndrome.
    Heart rhythm, 2008, Volume: 5, Issue:1

    Topics: Adrenergic beta-Antagonists; Adult; Case-Control Studies; Erythromycin; Female; Humans; Long QT Synd

2008
What is more dangerous in long QT 3 syndrome? Arrhythmogenic trigger or substrate?
    Acta physiologica (Oxford, England), 2008, Volume: 192, Issue:4

    Topics: Animals; Anti-Arrhythmia Agents; Cardiac Electrophysiology; Electric Stimulation; Long QT Syndrome;

2008
Epinephrine-induced ventricular premature complexes due to early afterdepolarizations and effects of verapamil and propranolol in a patient with congenital long QT syndrome.
    Journal of cardiovascular electrophysiology, 1994, Volume: 5, Issue:5

    Topics: Action Potentials; Adult; Cardiac Complexes, Premature; Epinephrine; Female; Humans; Long QT Syndrom

1994
Effects of verapamil and propranolol on early afterdepolarizations and ventricular arrhythmias induced by epinephrine in congenital long QT syndrome.
    Journal of the American College of Cardiology, 1995, Nov-01, Volume: 26, Issue:5

    Topics: Action Potentials; Adolescent; Adrenergic beta-Antagonists; Adult; Anti-Arrhythmia Agents; Blood Pre

1995
Characteristics of long QT with permanent bradycardia.
    Acta medica Hungarica, 1994, Volume: 50, Issue:1-2

    Topics: Adolescent; Adult; Atropine; Bradycardia; Child; Drug Therapy, Combination; Electrocardiography; Fem

1994
Provocative testing and drug response in a patient with the long QT syndrome.
    British heart journal, 1995, Volume: 74, Issue:1

    Topics: Adolescent; Drug Therapy, Combination; Electrocardiography; Epinephrine; Female; Humans; Isoproteren

1995
[Implantable defibrillator in the long QT syndrome].
    Deutsche medizinische Wochenschrift (1946), 1995, Mar-03, Volume: 120, Issue:9

    Topics: Adult; Defibrillators, Implantable; Electrocardiography; Female; Humans; Long QT Syndrome; Propranol

1995
Use of the rate-corrected JT interval for prediction of repolarization abnormalities in children.
    The American journal of cardiology, 1994, Dec-15, Volume: 74, Issue:12

    Topics: Adolescent; Adult; Bundle-Branch Block; Child; Child, Preschool; Electrocardiography; Heart; Humans;

1994
Idiopathic long q-t syndrome: brief case report and discussion.
    The West Virginia medical journal, 1994, Volume: 90, Issue:4

    Topics: Algorithms; Electrocardiography; Female; Humans; Long QT Syndrome; Middle Aged; Propranolol; Syncope

1994
Propranolol for probucol-induced QT prolongation with polymorphic ventricular tachycardia.
    Lancet (London, England), 1993, Jan-09, Volume: 341, Issue:8837

    Topics: Electrocardiography; Female; Humans; Long QT Syndrome; Middle Aged; Probucol; Propranolol; Torsades

1993
Syncope and sudden arrhythmic death complicating pregnancy. A case report of Romano-Ward syndrome.
    The Journal of reproductive medicine, 1993, Volume: 38, Issue:3

    Topics: Adrenergic beta-Antagonists; Adult; Bradycardia; Cesarean Section; Death, Sudden, Cardiac; Electric

1993
The long QT syndrome in children. An international study of 287 patients.
    Circulation, 1993, Volume: 87, Issue:6

    Topics: Adrenergic beta-Antagonists; Child; Death, Sudden, Cardiac; Defibrillators, Implantable; Electrocard

1993
Syncope and long QT syndrome with an initially normal QT interval.
    International journal of cardiology, 1993, Jul-15, Volume: 40, Issue:3

    Topics: Adult; Arousal; Electrocardiography; Female; Heart Conduction System; Humans; Long QT Syndrome; Male

1993
Hemodynamic effects of calcium chloride in a canine model of acute propranolol intoxication.
    Annals of emergency medicine, 1996, Volume: 28, Issue:1

    Topics: Acute Disease; Adrenergic beta-Antagonists; Animals; Bradycardia; Calcium Chloride; Disease Models,

1996
Drug-induced torsades de pointes in one patient with congenital long QT syndrome.
    International journal of cardiology, 1996, Apr-19, Volume: 54, Issue:1

    Topics: Adult; Anti-Arrhythmia Agents; Anti-Bacterial Agents; Astemizole; Cardiac Pacing, Artificial; Electr

1996
Implantable cardioverter defibrillator therapy in a patient with the idiopathic long QT syndrome.
    Pacing and clinical electrophysiology : PACE, 1996, Volume: 19, Issue:8

    Topics: Adult; Anti-Arrhythmia Agents; Combined Modality Therapy; Defibrillators, Implantable; Electrocardio

1996
Prenatal findings in patients with prolonged QT interval in the neonatal period.
    Heart (British Cardiac Society), 1997, Volume: 77, Issue:3

    Topics: Anti-Arrhythmia Agents; Bradycardia; Echocardiography; Electrocardiography; Female; Humans; Infant,

1997
Effects of beta-adrenergic blockade on dispersion of ventricular repolarization in newborn infants with prolonged QT interval.
    American heart journal, 1997, Volume: 134, Issue:3

    Topics: Adrenergic beta-Antagonists; Female; Heart Conduction System; Humans; Infant, Newborn; Long QT Syndr

1997
Congenital complete atrioventricular block in an infant with long QT syndrome.
    Acta cardiologica, 1998, Volume: 53, Issue:3

    Topics: Adrenergic beta-Antagonists; Electrocardiography; Female; Heart Block; Humans; Infant; Long QT Syndr

1998
Preoperative hypoglycaemia, propranolol and the Jervell and Lange-Nielsen syndrome.
    Paediatric anaesthesia, 1999, Volume: 9, Issue:2

    Topics: Adrenergic beta-Antagonists; Fasting; Humans; Hypoglycemia; Infant; Long QT Syndrome; Male; Preopera

1999
Long-term follow-up of patients with long-QT syndrome treated with beta-blockers and continuous pacing.
    Circulation, 1999, Dec-14, Volume: 100, Issue:24

    Topics: Adolescent; Adrenergic beta-Antagonists; Adult; Aged; Atenolol; Child; Child, Preschool; Cohort Stud

1999
Differential response of transmural dispersion of repolarization and torsade de pointes to beta-adrenergic agonists and antagonists in three models of the long QT syndrome.
    Journal of electrocardiology, 1999, Volume: 32 Suppl

    Topics: Adrenergic beta-Agonists; Adrenergic beta-Antagonists; Animals; Electrocardiography; Humans; Ion Cha

1999
Differential effects of beta-adrenergic agonists and antagonists in LQT1, LQT2 and LQT3 models of the long QT syndrome.
    Journal of the American College of Cardiology, 2000, Mar-01, Volume: 35, Issue:3

    Topics: Action Potentials; Adrenergic beta-Agonists; Adrenergic beta-Antagonists; Animals; Cardiotonic Agent

2000
Hyperthyroidism is associated with lengthening of ventricular repolarization.
    Clinical endocrinology, 2001, Volume: 55, Issue:1

    Topics: Adrenergic beta-Antagonists; Adult; Electrocardiography, Ambulatory; Electrolytes; Female; Follow-Up

2001
The congenital long QT syndrome.
    Indian journal of pediatrics, 2002, Volume: 69, Issue:2

    Topics: Child; Combined Modality Therapy; Female; Humans; Infant; Long QT Syndrome; Male; Pacemaker, Artific

2002
Malignant familial long QT syndrome.
    Saudi medical journal, 2002, Volume: 23, Issue:6

    Topics: Adolescent; Adrenergic beta-Antagonists; Adult; Child; Child, Preschool; Consanguinity; Humans; Infa

2002
Differential effects of beta-blockade on dispersion of repolarization in the absence and presence of sympathetic stimulation between the LQT1 and LQT2 forms of congenital long QT syndrome.
    Journal of the American College of Cardiology, 2002, Jun-19, Volume: 39, Issue:12

    Topics: Adolescent; Adrenergic beta-Antagonists; Adult; Body Surface Potential Mapping; Female; Heart; Heart

2002
Congenital long QT syndrome with functionally impaired atrioventricular conduction: successful treatment by mexiletine and propranolol.
    Journal of the Formosan Medical Association = Taiwan yi zhi, 2002, Volume: 101, Issue:4

    Topics: Drug Therapy, Combination; Heart Block; Humans; Infant, Newborn; Long QT Syndrome; Male; Mexiletine;

2002
Role of early afterdepolarization in familial long QTU syndrome and torsade de pointes.
    Pacing and clinical electrophysiology : PACE, 1992, Volume: 15, Issue:11 Pt 2

    Topics: Action Potentials; Adolescent; Cardiac Pacing, Artificial; Epinephrine; Female; Heart Conduction Sys

1992
[A case of congenital long QT syndrome associated with T wave alternans].
    Kokyu to junkan. Respiration & circulation, 1992, Volume: 40, Issue:2

    Topics: Adrenergic beta-Antagonists; Aged; Electrocardiography; Exercise Test; Female; Humans; Long QT Syndr

1992
Alpha-adrenoceptor stimulation and blockade modulates cesium-induced early afterdepolarizations and ventricular tachyarrhythmias in dogs.
    Circulation, 1990, Volume: 82, Issue:1

    Topics: Adrenergic alpha-Antagonists; Animals; Cardiac Pacing, Artificial; Cesium; Dogs; Electrophysiology;

1990
[Variants of diagnosis and treatment of congenital long QT syndrome].
    Pediatriia, 1991, Issue:1

    Topics: Child, Preschool; Diagnosis, Differential; Electrocardiography; Female; Humans; Long QT Syndrome; Pa

1991
[A case of Romano-Ward syndrome effectively treated by propranolol and atrial pacing].
    Kokyu to junkan. Respiration & circulation, 1991, Volume: 39, Issue:4

    Topics: Adult; Cardiac Pacing, Artificial; Combined Modality Therapy; Electrocardiography; Female; Heart Atr

1991
Prostaglandin modulation of early afterdepolarizations and ventricular tachyarrhythmias induced by cesium chloride combined with efferent cardiac sympathetic stimulation in dogs.
    Journal of the American College of Cardiology, 1990, Volume: 16, Issue:5

    Topics: Animals; Cardiac Pacing, Artificial; Cesium; Chlorides; Dinoprostone; Dogs; Efferent Pathways; Epopr

1990
[Long-term treatment of ventricular arrhythmia caused by electrocardiographic long QT syndrome].
    Kardiologiia, 1988, Volume: 28, Issue:7

    Topics: Arrhythmias, Cardiac; Atropine; Autonomic Nerve Block; Cardiac Complexes, Premature; Child; Combined

1988
[Torsade de pointes during an atropine sulfate test in a patient with congenital long QT syndrome].
    Cardiologia (Rome, Italy), 1989, Volume: 34, Issue:12

    Topics: Arrhythmias, Cardiac; Atropine; Cardiac Pacing, Artificial; Humans; Long QT Syndrome; Male; Middle A

1989
Long QT syndrome associated with inflammatory degeneration of the stellate ganglia.
    Clinical cardiology, 1989, Volume: 12, Issue:4

    Topics: Adult; Arrhythmias, Cardiac; Electrocardiography; Female; Humans; Inflammation; Long QT Syndrome; Pr

1989
The effect of sympathetic and parasympathetic activity on QT duration. Clinical study in patients with normal and prolonged QT time.
    Cor et vasa, 1989, Volume: 31, Issue:1

    Topics: Adult; Arrhythmias, Cardiac; Atropine; Cardiac Pacing, Artificial; Electrocardiography; Female; Huma

1989
Congenital long QT syndrome: changes in QT interval during anesthesia with thiopental, vecuronium, fentanyl, and isoflurane.
    Anesthesia and analgesia, 1987, Volume: 66, Issue:4

    Topics: Adult; Anesthesia; Arrhythmias, Cardiac; Electrocardiography; Female; Fentanyl; Heart; Humans; Hyste

1987
Q-T interval syndromes.
    Lancet (London, England), 1988, Jul-02, Volume: 2, Issue:8601

    Topics: Arrhythmias, Cardiac; Child; Child, Preschool; Electrocardiography; Heart Rate; Humans; Long QT Synd

1988
[Hereditary prolonged Q-T interval syndrome: Romano-Ward type].
    Revista medica de Panama, 1988, Volume: 13, Issue:3

    Topics: Adolescent; Arrhythmias, Cardiac; Combined Modality Therapy; Death, Sudden; Heart Block; Humans; Lon

1988
[Long QT interval syndrome].
    Arquivos brasileiros de cardiologia, 1987, Volume: 49, Issue:5

    Topics: Adolescent; Arrhythmias, Cardiac; Electrocardiography; Humans; Long QT Syndrome; Male; Nerve Block;

1987
Atrioventricular pacemaker placement in Romano-Ward syndrome and recurrent torsades de pointes.
    The American journal of cardiology, 1987, Jan-01, Volume: 59, Issue:1

    Topics: Adult; Arrhythmias, Cardiac; Female; Humans; Long QT Syndrome; Pacemaker, Artificial; Propranolol; R

1987
[Orthostatic induced ventricular tachycardia in a patient with Romano-Ward syndrome].
    Harefuah, 1985, Volume: 109, Issue:9

    Topics: Adult; Arrhythmias, Cardiac; Female; Follow-Up Studies; Heart Ventricles; Humans; Hypotension, Ortho

1985