ReviewInternational journal of cardiology. Heart & vasculature2020
QTc evaluation in patients with bundle branch block.
Review in International journal of cardiology. Heart & vasculature, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
17 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.
- The SCN5A Gene Is a Predictor of Phenotype Severity in Brugada Syndrome: A Comprehensive Literature Review.Medical principles and practice : international journal of the Kuwait University, Health Science Centre · 2023Pooled it
- Antipsychotic-Associated Hypothermia With Bradycardia and QT Prolongation in an Older Adult.Cureus · 2026Article
- [Practical management of drug-induced long QT syndrome].Innere Medizin (Heidelberg, Germany) · 2026Review
- QT Prolongation and Arrhythmias in Cancer Therapy: A Narrative Review of Mechanistic and Clinical Studies.Cardiovascular toxicology · 2026Review
- Impact of Sacubitril/Valsartan on Cardiac Reverse Remodeling in Patients with Heart Failure Undergoing Cardiac Resynchronization Therapy.Diseases (Basel, Switzerland) · 2025Article
- A Prospective Pilot Study for Prognosis of Cardiac Resynchronization Therapy Super-Response Using Electrical and Mechanical Dyssynchrony Assessment in Patients with Heart Failure and Strauss Left Bundle Branch Block Criteria.Life (Basel, Switzerland) · 2025Article
- Impact of Combined Treatment with ARNi and SGLT2i on Clinical and Echocardiographic Outcomes in Patients with CRT During Mid-term Period.Current cardiology reviews · 2025Article
- A predictive model of super response to cardiac resynchronization therapy in short-term period.Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing · 2024Article
- Electrocardiographic parameters and mortality in patients with SARS-CoV-2 infection: A single center study.Caspian journal of internal medicine · 2024Article
- Long-Term Prognosis among COVID-19 Patients: The Predictive Role Played by Hyperinflammation and Arrhythmic Disorders in Fatal Outcome.Journal of clinical medicine · 2023Article
- QTc interval measurement in patients with right bundle branch block: A practical method.Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc · 2023Article
- Brazilian Society of Cardiology Guidelines on the Analysis and Issuance of Electrocardiographic Reports - 2022.Arquivos brasileiros de cardiologia · 2022Article
- Is Electrocardiogram Helpful in Predicting a Rise in Troponin I as a Marker of Anthracycline Cardiotoxicity?European journal of breast health · 2022Article
- COVID-19 and arrhythmia: The factors associated and the role of myocardial electrical impulse propagation. An observational study based on cardiac telemetric monitoring.Frontiers in cardiovascular medicine · 2022Article
- Genotype-Specific ECG-Based Risk Stratification Approaches in Patients With Long-QT Syndrome.Frontiers in cardiovascular medicine · 2022Article
- Transient Acquired QT Interval Prolongation After Administration of Intravenous Ondansetron.CJC open · 2022Article
- Application of Electromechanical Window Negativity as an Arrhythmia Risk Correlate in Acquired Long QT Syndrome.JACC. Case reports · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 5 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Proper measurement of the QT interval on the 12-lead body-surface ECG is challenging in daily practice. Even more difficult is its correct estimation in the presence of repolarization abnormalities, arrhythmias or bundle-branch blocks (BBB). The QT interval results from two parts of the ECG: (1) the QRS complex, describing the excitation of the ventricles and (2) the JT interval, describing the repolarisation of the ventricles. Prolongation of the QRS width - like in the presence of BBB - entails prolongation of the QT interval, making the estimation of the true repolarisation time challenging. The US recommendations for the standardization and interpretation of the ECG suggest focusing on the JT interval in presence of BBB. However, in clinical practice physicians have become more familiar with the interpretation of QT-interval measurements than with the interpretation of the JT Interval. In the last decade, a simple formula for the estimation of the "modified QT interval" in the presence of left or right BBB has been developed and evaluated. In this formula, the modified QT interval is calculated by subtracting 50% of the length of the BBB-QRS from the measured QT interval (QT
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.