P-Wave Changes Associated with Chiari Network in the Right Atrium

İrdem, Ahmet; Akpınar, Muhammet Yener; Celebi, Ebru; Aygün, Fatih; Dursun, Hasan

doi:10.1007/s00246-020-02441-9

Cited by 2 publications

(2 citation statements)

References 18 publications

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“…Of interest, a recent study of children in an outpatient clinic demonstrated an increase in the mean electrocardiographic P wave duration, amplitude, and dispersion associated with the presence of a Chiari network in the absence of any other cardiac abnormality. 29 The gradual regression of the extent of Chiari network prolapse with growth during childhood and adolescence that we demonstrated may be due to an increase in the size of the atrium rather than a decrease in the length of the Chiari network. This slow regression likely explains why a prolapsing Chiari network is extremely rare in adults.…”

Section: Associated Cardiac Abnormalitiesmentioning

confidence: 60%

Prominent prolapsing Chiari network: presentation and prognosis in paediatric patients

Joyce¹,

Joyce

Ferns

2021

Cardiol Young

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Chiari network is an infrequently visualized web-like structure in the right atrium that is usually thin and small. Rarely, it can be prominent and elongated with protrusion into the right ventricle during diastole and complications have been reported. Thirty-eight patients (median age 2.5 years) with prolapsing Chiari network were identified and associated cardiac abnormalities documented. Echocardiographic right and left heart parameters were measured and compared to normative data. At presentation, the extent of Chiari network prolapse below the tricuspid annulus was 9.1 ± 3.5 mm (mean ± standard deviation), mean pulmonary valve annulus diameter z-value was reduced (-0.91 ± 0.64), and mean aortic valve z-value was enlarged (+0.97 ± 0.87). Fourteen patients exhibited no other cardiac abnormality. Eight were noted to have atrial septal defects, eight demonstrated supraventricular dysrhythmias, six had mild to moderate tricuspid valve regurgitation, and one patient each had an atrial septal aneurysm, severe pulmonic valve stenosis, small perimembranous ventricular septal defect, bicuspid aortic valve, and mild right upper pulmonary vein stenosis. Fourteen patients (37%) were seen in follow-up from 1 to 8.5 years later (median 3.2 years). During that time, the magnitude of prolapse across the tricuspid valve decreased by up to 7 mm (median 2 mm). Interventions were required in three patients, but many associated cardiac abnormalities resolved spontaneously with growth. Thus, the presence of a prolapsing Chiari network has a substantial risk of associated CHDs. However, the extent of Chiari network prolapse gradually decreases and many related abnormalities resolve during growth.

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Section: Associated Cardiac Abnormalitiesmentioning

confidence: 60%

Prominent prolapsing Chiari network: presentation and prognosis in paediatric patients

Joyce¹,

Joyce

Ferns

2021

Cardiol Young

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“…We evaluated the minimum, maximum, and dispersion (maximum-minimum difference) parameters of P-wave, T-wave, QRS-wave, QT, QTC, and PR distances in our study, which we believe may be predictors of cardiac arrhythmia in amitriptyline intoxication. We compared them to healthy controls because there is no clear information or data about the normal ranges of dispersion times in the literature 23 . As a result, we found that, with the exception of the QRS-wave, dispersions were higher in amitriptyline intoxications than in healthy controls.…”

Section: Discussionmentioning

confidence: 99%

ECG Changes in Patients with Amitriptyline Intoxication; P, QT, QTC, T and PR Wave Dispersion: A Retrospective Study

Gündoğmuş¹,

Gündoğmuş²,

Aksakal

2023

Eurasian Journal of Toxicology

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Objective: Amitriptyline intoxication is a life-threatening condition as it can cause cardiac arrhythmias. This study aims to examine the ECG changes in patients with amitriptyline intoxications who were admitted to the emergency department and to compare the P-wave, T-wave, QT, QTC, and PR dispersions with healthy controls. Material and Methods: The sample of the current retrospective study consists of only 46 patients with amitriptyline intoxication and 65 healthy controls. The 12-channel ECG recordings of the participants were evaluated by two experienced cardiologists. P wave, T wave, QT, QTC, and PR distance, minimum, maximum, and dispersion values were measured. The obtained data were recorded on the data set and subjected to statistical analysis. Results: There was no significant difference in sociodemographic variables between patients with amitriptyline intoxication and the control group. The main symptoms of the patients were as follows: 28.3% (n=13) lethargy, 32.6% (n=15) nausea-vomiting, 21.7% (n=10) unconsciousness, and 17.4% (n=8) other. According to the analysis of amitriptyline intoxication and ECG parameters of healthy controls, P-wave, T-wave, QT, QTC, and PR dispersion were higher in the intoxication group than in the healthy controls (p0.05). The patient group had a higher heart rate than the control group (p=0.026). Conclusion: The current study found that P-wave, T-wave, QT, QTC, and PR dispersion were higher in the amitriptyline intoxication group than in the control group, which is thought to play a role in cardiac arrhythmias. Clinicians should be on alert for any ECG changes in these cases.

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P-Wave Changes Associated with Chiari Network in the Right Atrium

Cited by 2 publications

References 18 publications

Prominent prolapsing Chiari network: presentation and prognosis in paediatric patients

Prominent prolapsing Chiari network: presentation and prognosis in paediatric patients

ECG Changes in Patients with Amitriptyline Intoxication; P, QT, QTC, T and PR Wave Dispersion: A Retrospective Study

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