Results 1 to 10 of about 171,843 (301)

QT peak prolongation predicts cardiac death following stroke [PDF]

, 2015
Cardiac death has been linked in many populations to prolongation of the QT interval (QTe). However, basic science research suggested that the best estimate of the time point when repolarisation begins is near the T-wave peak.
Douglas, Denise, Fraser, Hazel W, MacWalter, Ronald S, Ogston, Simon A, Struthers, Allan D, Suich, Joseph, Wong, Kenneth Y K, Wong, Suzanne Y S   +7 more
core   +1 more source

Диспластические синдромы и фенотипы в оценке изменений интервала QT при малых аномалиях сердца

Архивъ внутренней медицины, 2011
To assess relation of dysplastic syndromes and phenotypes to pathological QT interval in patients with minor cardiac anomalies, 128 patients aged 18–35 years were examined.
А. В. Ягода, Н. Н. Гладких, Я. С. Григорян   +2 more
doaj   +3 more sources

Parameters of ventricular repolarization in patients with autoimmune hepatitis

Türk Kardiyoloji Derneği Arşivi, 2017
Objective: Autoimmune hepatitis (AIH) is a liver disorder that affects both children and adults. It is characterized by inflammatory liver histology, elevated transaminase level, circulating nonorgan-specific autoantibodies, and increased level of ...
Burak Açar, Mahmut Yüksel, Çağrı Yayla, Özgür Kırbaş, Sefa Ünal, Ahmet Göktuğ Ertem, Koray Demirtaş, Mustafa Kaplan, Meral Akdoğan, Sabite Kaçar, Ertuğrul Kayaçetin, Sinan Aydoğdu   +11 more
doaj   +1 more source

The QT Intervals in Infancy and Time for Infantile ECG Screening for Long QT Syndrome [PDF]

, 2011
Background: Electrocardiographic and molecular studies have clarified an association between sudden infant death syndrome (SIDS) and long QT syndrome (LQTS), and few data are available for the QT interval in infancy from birth to 1 year of age ...
Yoshinaga, Masao, Kato, Yoshiaki, Nomura, Yuichi, Hazeki, Daisuke, Yasuda, Toshiaki, Takahashi, Kazuhiro, Higaki, Takashi, Tanaka, Yuji, Wada, Akihiro, Horigome, Hitoshi, Takahashi, Hideto, Ueno, Kentaro, Suzuki, Hiroshi, Nagashima, Masami   +13 more
core   +2 more sources

Automated versus Manual Measurement of the QT Interval and Corrected QT Interval [PDF]

Annals of Noninvasive Electrocardiology, 2011
Background: The International Conference on Harmonization E14 Guideline specifies detailed assessment of QT interval or corrected QT interval prolongation when developing new drugs. We recently devised new software to precisely measure the QT interval.
Masakatsu Ohta, Atsushi Hirayama, Yuji Kasamaki, Akira Sezai, Mutsuo Kaneko, B A Takashi Yamaki, Yukio Ozawa, Ichiro Watanabe, Tomohiro Nakayama   +8 more
openaire   +3 more sources

Prevalence of QTc interval prolongation and its associated risk factors among psychiatric patients: a prospective observational study

BMC Psychiatry, 2020
Background QT interval prolongation is a growing concern worldwide, posing psychiatric patients to life-threatening fatal arrhythmias i.e., torsade de pointes.
Zahid Ali, Mohammad Ismail, Zahid Nazar, Fahadullah Khan, Qasim Khan, Sidra Noor   +5 more
doaj   +1 more source

Pharmacogenetics of Drug-Induced QT Interval Prolongation: An Update [PDF]

, 2015
A prolonged QT interval is an important risk factor for ventricular arrhythmias and sudden cardiac death. QT prolongation can be caused by drugs. There are multiple risk factors for drug-induced QT prolongation, including genetic variation.
Berg, M.E. (Marten) van den, Eijgelsheim, M. (Mark), Niemeijer, M.N. (Maartje), Rijnbeek, P.R. (Peter), Stricker, B.H.Ch. (Bruno)   +4 more
core   +1 more source

Dynamics of QT Interval in a Patient With Long QT Syndrome and a Normal QT Interval

Japanese Circulation Journal, 1998
A case report of a 15-year-old girl who experienced syncope and torsades de pointes is presented. The girl had a normal QT interval (QTc=0.37 sec) on the resting electrocardiogram (ECG). Infusion of isoproterenol induced QT prolongation (QTc=0.62 sec) and frequent occurrence of multiform ventricular premature beats. Her Holter ECG showed a prolongation
Morio Ito, Mikiko Nakagawa, Tetsu Iwao, Shuji Ishida, Midori Asada, Susumu Shimada, Hidetoshi Yonemochi, Tetsunori Saikawa, Naohiko Takahashi   +8 more
openaire   +4 more sources

Thoracic epidural analgesia prolongs postoperative QT interval on electrocardiogram in major non-cardiac surgery: a randomized comparison and a prospective cohort analysis

Frontiers in Pharmacology, 2023
Introduction: Prolongation of QT interval on electrocardiogram can be associated with perioperative lethal arrhythmia. Epidural analgesia is a commonly used modality to relieve surgical pain by blocking sensory nerves, which also blocks the autonomic ...
Kotaro Hori, Shogo Tsujikawa, Mika Egami, Sayaka Waki, Ryota Watanabe, Hideki Hino, Tadashi Matsuura, Takashi Mori   +7 more
doaj   +1 more source

Heritability of Tpeak-Tend interval and T-wave amplitude: a twin study [PDF]

, 2011
Background— Tpeak-Tend interval (TpTe) and T-wave amplitude (Tamp) carry diagnostic and prognostic information regarding cardiac morbidity and mortality. Heart rate and QT interval are known to be heritable traits.
Budtz-Jørgensen, Esben, Haarmark, Christian, Kanters, Jørgen K., Kyvik, Kirsten O, Vedel-Larsen, Esben   +4 more
core   +1 more source