scholarly journals Successful treatment of bepridil-induced intraoperative torsades de pointes by isoproterenol infusion

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Ken Shimano ◽  
Kyungho Chang ◽  
Yoshiki Hara ◽  
Atsushi Yasuda ◽  
Shigehito Sawamura
Keyword(s):  
Heart Rate ◽  
Antiarrhythmic Drugs ◽  
Torsades De Pointes ◽  
Qt Prolongation ◽  
Residual Cancer ◽  
Premature Ventricular Contractions ◽  
Case Presentation ◽  
Prolonged Qt Interval ◽  
Prolonged Qt ◽  
Isoproterenol Infusion

Abstract Background Several types of antiarrhythmic drugs are known to induce QT prolongation and torsades de pointes. Case presentation An 84-year-old man was scheduled for open gastrectomy for residual cancer. He had been prescribed bepridil for atrial fibrillation that converted to sinus rhythm with prolonged QT interval in the operating room. After the surgery was initiated under general and epidural anesthesia, the patient’s heart rate decreased to 50/min and multifocal premature ventricular contractions appeared, followed by several episodes of torsades de pointes, each lasting for 5 to 15 s. Infusion of isoproterenol was started (0.01 μg/kg/min), and the heart rate was maintained at around 80/min. Premature ventricular contractions disappeared, and torsades de pointes did not recur during the surgery. The operation was completed uneventfully. The serum bepridil concentration was found to be extremely high postoperatively. Conclusions Bepridil-induced intraoperative episodes of torsades de pointes were successfully treated by increasing the heart rate with isoproterenol.

A review of ECG and QT interval measurement use in a public psychiatric inpatient setting

2017 ◽  
Vol 26 (1) ◽  
pp. 50-55 ◽  
Author(s):  
Ingrid Berling ◽  
Rahul Gupta ◽  
Cecilia Bjorksten ◽  
Felicity Prior ◽  
Ian M Whyte ◽  
...  
Keyword(s):  
Mental Health ◽  
Qt Interval ◽  
Psychiatric Inpatient ◽  
Torsades De Pointes ◽  
Qt Prolongation ◽  
Inpatient Unit ◽  
Inpatient Setting ◽  
Prolonged Qt Interval ◽  
Prolonged Qt ◽  
Clinically Significant

Objectives: There is an increased rate of sudden cardiac death (SCD) in mental health patients. Some antipsychotic medications are known to prolong the QT interval, thus increasing a patient’s risk of SCD via the arrhythmia, torsades de pointes (TdP). Our aim was to evaluate assessment for QT prolongation within a public inpatient mental health facility by auditing electrocardiograph (ECG) use. Methods: We reviewed records of all mental health inpatient admissions to a public emergency mental health inpatient unit between 1 January 2016 and 11 February 2016. ECG availability was noted and QT interval was manually measured and assessed for risk of TdP using the QT nomogram when present. Demographic information and medication use was collected. Results: Of 263 mental health inpatient admissions, 50 (19%) presentations had an ECG. A total of four (8%) had a prolonged QT interval. Of the 50 patients with an ECG, 12 (24%) were taking medication known to prolong the QT interval. Conclusions: There was very limited risk assessment for QT prolongation in a public hospital psychiatric inpatient unit, with less than 20% of patients having an ECG performed. Our study supports an association between QT-prolonging drugs and a clinically significant prolonged QT interval; however, a larger study with routine ECG screening is required.

scholarly journals Drug-Induced QT Prolongation as a Result of an Escitalopram Overdose in a Patient with Previously Undiagnosed Congenital Long QT Syndrome

2014 ◽  
Vol 2014 ◽  
pp. 1-3 ◽  
Author(s):  
Paul Singh ◽  
J. Martin Maldonado-Duran
Keyword(s):  
Qt Interval ◽  
Torsades De Pointes ◽  
Qt Prolongation ◽  
Long Qt ◽  
Drug Induced ◽  
Prolonged Qt Interval ◽  
Prolonged Qt ◽  
Qt Syndrome ◽  
Congenital Lqts ◽  
Congenital Long Qt Syndrome

We present a case of drug-induced QT prolongation caused by an escitalopram overdose in a patient with previously undiagnosed congenital LQTS. A 15-year-old Caucasian female presented following a suicide attempt via an escitalopram overdose. The patient was found to have a prolonged QT interval with episodes of torsades de pointes. The patient was admitted to the telemetry unit and treated. Despite the resolution of the torsades de pointes, she continued to demonstrate a persistently prolonged QT interval. She was seen by the cardiology service and diagnosed with congenital long QT syndrome. This case illustrates the potential for an escitalopram overdose to cause an acute QT prolongation in a patient with congenital LQTS and suggests the importance of a screening electrocardiogram prior to the initiation of SSRIs, especially in patients at high risk for QT prolongation.

scholarly journals An explainable algorithm for detecting drug-induced QT-prolongation at risk of torsades de pointes (TdP) regardless of heart rate and T-wave morphology

2021 ◽  
Vol 131 ◽  
pp. 104281
Author(s):  
Alaa Alahmadi ◽  
Alan Davies ◽  
Jennifer Royle ◽  
Leanna Goodwin ◽  
Katharine Cresswell ◽  
...  
Keyword(s):  
At Risk ◽  
Heart Rate ◽  
Torsades De Pointes ◽  
Qt Prolongation ◽  
Drug Induced ◽  
T Wave ◽  
Wave Morphology

scholarly journals Prolonged QTc: "Mind the Gap"

2014 ◽  
Vol 2 (1) ◽  
pp. 44-45
Author(s):  
Ahmad Mursel Anam ◽  
Raihan Rabbani ◽  
Farzana Shumy ◽  
M Mufizul Islam Polash ◽  
M Motiul Islam ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Long Qt Syndrome ◽  
Qt Interval ◽  
Torsades De Pointes ◽  
Junior Doctors ◽  
Long Qt ◽  
Acquired Long Qt Syndrome ◽  
Prolonged Qt Interval ◽  
Prolonged Qt ◽  
Qt Syndrome

We report a case of drug induced torsades de pointes, following acquired long QT syndrome. The patient got admitted for shock with acute abdomen. The initial prolonged QT-interval was missed, and a torsadogenic drug was introduced post-operatively. Patient developed torsades de pointes followed by cardiac arrest. She was managed well and discharged without complications. The clinical manifestations of long QT syndromes, syncope or cardiac arrest, result from torsades de pointes. As syncope or cardiac arrest have more common differential diagnoses, even the symptomatic long QT syndrome are commonly missed or misdiagnosed. In acquired long QT syndrome with no prior suggestive feature, it is not impossible to miss the prolonged QT-interval on the ECG tracing. We share our experience so that the clinicians, especially the junior doctors, will be more alert on checking the QT-interval even in asymptomatic patients. DOI: http://dx.doi.org/10.3329/bccj.v2i1.19970 Bangladesh Crit Care J March 2014; 2 (1): 44-45

scholarly journals Prolonged QT Interval in a Patient With Coronavirus Disease-2019: Beyond Hydroxychloroquine and Azithromycin

2020 ◽  
Vol 8 ◽  
pp. 232470962094840
Author(s):  
B K Anupama ◽  
Soumya Adhikari ◽  
Debanik Chaudhuri
Keyword(s):  
Qt Interval ◽  
Ventricular Arrhythmias ◽  
Torsade De Pointes ◽  
Cardiac Pacing ◽  
Qt Prolongation ◽  
Medication Effects ◽  
Increased Risk ◽  
Repolarization Reserve ◽  
Prolonged Qt Interval ◽  
Prolonged Qt

Recent reports have suggested an increased risk of QT prolongation and subsequent life-threatening ventricular arrhythmias, particularly torsade de pointes, in patients with coronavirus disease-2019 (COVID-19) treated with hydroxychloroquine and azithromycin. In this article, we report the case of a 75-year-old female with a baseline prolonged QT interval in whom the COVID-19 illness resulted in further remarkable QT prolongation (>700 ms), precipitating recurrent self-terminating episodes of torsade de pointes that necessitated temporary cardiac pacing. Despite the correction of hypoxemia and the absence of reversible factors, such as adverse medication effects, electrolyte derangements, and usage of hydroxychloroquine/azithromycin, the QT interval remained persistently prolonged compared with the baseline with subsequent degeneration into ventricular tachycardia and death. Thus, we highlight that COVID-19 illness itself can potentially lead to further prolongation of QT interval and unmask fatal ventricular arrhythmias in patients who have a prolonged QT and low repolarization reserve at baseline.

Postoperative Nausea and Vomiting in Patients with Prolonged QTc

2013 ◽  
Author(s):  
Shilpa Rao ◽  
Jerrold Lerman
Keyword(s):  
Postoperative Nausea ◽  
Qt Interval ◽  
Postoperative Nausea And Vomiting ◽  
Torsades De Pointes ◽  
Nausea And Vomiting ◽  
Receptor Antagonists ◽  
Prolonged Qt Interval ◽  
Prolonged Qt ◽  
Type 3 ◽  
Potential Interactions

A panoply of pharmacological and nonpharmacological strategies are currently employed to attenuate the risk of postoperative nausea and vomiting (PONV) in children, including 5-hydroxytryptamine type 3 (5-HT3) receptor antagonists. 5-HT3 receptor antagonists can prolong the QT interval, which can be a precursor of torsades de pointes (TdP), particularly in children with congenital or acquired prolonged QT interval. This chapter summarizes the causes of prolonged QT interval, the potential interactions of prolonged QT interval with antiemetics and anesthetics, and strategies to prevent PONV.

Sign in / Sign up

Export Citation Format

Share Document