Results 71 to 80 of about 323,811 (146)

Fragmented QRS electrocardiogram--the hidden Talisman?

open access: yesIndian pacing and electrophysiology journal, 2009
There are several stigmas on the resting surface electrocardiogram that are indicators of past myocardial injury. Broad QRS pattern with bundle branch block, Q waves, persistent ST elevation are some of those facsimiles which may at times even be considered as definitive signs of left ventricular impairment.
Frijo Jose, Mangalath Krishnan
openaire   +2 more sources

High Doses of N‐Acetyl‐P‐Aminophenol Cause Acute Changes in Electroencephalographic and Electrocardiographic Activities in Wistar Rats

open access: yesBasic &Clinical Pharmacology &Toxicology, Volume 139, Issue 5, November 2026.
ABSTRACT N‐acetyl‐p‐aminophenol (APAP), or acetaminophen, is the most prescribed analgesic and antipyretic, even used in association with other drugs. Because it is easily bought in drugstores, much evidence about its toxic effects is known due to high doses or continuous use, which can lead to death in cases of intoxication.
Alex Luiz Menezes da Silva   +9 more
wiley   +1 more source

The Predictive Value of Fragmented QRS and QRS Distortion for High-Risk Patients with STEMI and for the Reperfusion Success

open access: yes, 2015
Background: QRS fragmentation (fQRS) and QRS distortion were separately shown to be related to increased cardiovascular mortality and morbidity. To our knowledge, no study so far evaluated both parameters together in ST segment elevation myocardial ...
DURSUN, HÜSEYİN   +5 more
core   +1 more source

An automated algorithm for online detection of fragmented QRS and identification of its various morphologies [PDF]

open access: yes, 2013
Fragmented QRS (f-QRS) has been proven to be an efficient biomarker for several diseases, including remote and acute myocardial infarction, cardiac sarcoidosis, non-ischaemic cardiomyopathy, etc.
Maheshwari, Sidharth   +19 more
core   +1 more source

Risk Factors for QRS-Fragmentation in Patients with STEMI Undergoing PCI

open access: yesMedicina
Background and Objectives: Despite modern therapy algorithms, ST-elevation myocardial infarction (STEMI) substantially contributes to cardiovascular morbidity and mortality worldwide.
Florian Tinhofer   +13 more
doaj   +1 more source

Wearable Morphology‐Adaptive in‐Ear Device With Active Cleansing Capability for Multimodal Health Monitoring

open access: yesAdvanced Materials, Volume 38, Issue 58, 16 October 2026.
We present SCIENCE, an in‐ear multimodal physiological monitor featuring two key innovations. Water‐triggered morphological expansion (a 2‐mm cylinder to a 9‐mm spindle) achieves conformal adaptation across complex canal geometries. Simultaneously, active biofouling mitigation disrupts cerumen barriers, reducing sensor‐skin impedance by 20%.
Shuyun Zhuo   +3 more
wiley   +1 more source

Association of fragmented QRS complexes on ECG with left ventricular diastolic function in hypertensive patients

open access: yesTürk Kardiyoloji Derneği Arşivi, 2015
Objectives: Diastolic dysfunction occurs as a result of interstitial fibrosis in hypertensive patients. Fragmented QRS (fQRS) on ECG signifies myocardial fibrosis in various clinical situations.
Hasan Kadı   +5 more
doaj   +1 more source

Effectiveness of Bachmann's Bundle Pacing in a Patient With Severe Heart Failure and Refractory Atrial Fibrillation

open access: yesJournal of Arrhythmia, Volume 42, Issue 5, October 2026.
This case report highlights CRT‐D with Bachmann's bundle pacing (BBP) in a patient with severe heart failure and refractory atrial fibrillation. BBP preserved atrioventricular conduction without PR prolongation, maintained left ventricular–only pacing, and was associated with suppression of atrial fibrillation and improvement in left atrial contractile
Yosuke Murase   +4 more
wiley   +1 more source

Substrate‐Based Ablation Guided by Combined Fractionation and Frequency Analysis for Multiple and Unmappable Ventricular Tachycardias

open access: yesJournal of Arrhythmia, Volume 42, Issue 5, October 2026.
Stepwise evaluation of fractionation and peak frequency maps on substrate mapping identified VT‐related substrate regions in a patient with multiple ventricular tachycardias. This complementary substrate‐based approach may help guide ablation when complete circuit characterization is challenging.
Maiko Kuroda   +2 more
wiley   +1 more source

Higher right precordial leads and Fontaine leads: the better detection of QRS fragmentation and epsilon wave in arrhythmogenic right ventricular dysplasia-cardiomyopathy [PDF]

open access: yes, 2012
Epsilon waves (EW) in right precordial leads are reliable diagnostic electrocardiographic criteria of arrhythmogenic right ventricular dysplasia-cardiomyopathy (ARVD/C).
Kukla, Piotr   +2 more
core  

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