Prevelance of Fragmented QRS Complex and Prolonged QT Interval in Cirrhotic Patients

NCT ID: NCT03158701

Last Updated: 2017-05-18

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

100 participants

Study Classification

OBSERVATIONAL

Study Start Date

2017-06-01

Study Completion Date

2018-06-01

Brief Summary

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.Cardiac affection in liver cirrhosis is a clinical condition characterized by impaired diastolic relaxation and contractility with electrophysiological abnormalities.

.Cirrhotic patients with cardiac abnormality have higher mortality rates compared to patients without cardiac affection.

The suggested pathophysiologic mechanisms of cardiac affection in cirrhotic patients are; alterations in the beta-adrenergic signaling pathway and, myocardial fibrosis formation, sympathetic nervous system activation and changes in ion channels.

.As a component of cardiac involvement in cirrhotic patients fragmented QRS complex and prolongation of the corrected QT interval has been documented in most of the cases with liver cirrhosis (LC) and its prevalence increases with the severity of the disease

Detailed Description

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.Cardiac affection in liver cirrhosis is a clinical condition characterized by impaired diastolic relaxation and contractility with electrophysiological abnormalities.

.Cirrhotic patients with cardiac abnormality have higher mortality rates compared to patients without cardiac affection.

The suggested pathophysiologic mechanisms of cardiac affection in cirrhotic patients are; alterations in the beta-adrenergic signaling pathway and, myocardial fibrosis formation, sympathetic nervous system activation and changes in ion channels.

.As a component of cardiac involvement in cirrhotic patients fragmented QRS complex and prolongation of the corrected QT interval has been documented in most of the cases with liver cirrhosis (LC) and its prevalence increases with the severity of the disease.

.Fragmented QRS (fQRS) is a convenient marker of myocardial scar evaluated by 12-lead electrocardiogram (ECG) recording. fQRS is defined as additional spikes within the QRS complex. In patients with CAD, fQRS was associated with myocardial scar detected by single photon emission tomography and was a predictor of cardiac events. fQRS was also a predictor of mortality and arrhythmic events in patients with reduced left ventricular function. The usefulness of fQRS for detecting myocardial scar and for identifying high-risk patients has been expanded to various cardiac diseases, such as cardiac cirrhosis, arrhythmogenic right ventricular cardiomyopathy, acute coronary syndrome. fQRS can be caused by zigzag conduction around the scarred myocardium, resulting in multiple spikes within the QRS complex .

Conditions

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Liver Cirrhosis

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Eligibility Criteria

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Inclusion Criteria

* All cirrhotic patients based on history and clinical diagnosis

Exclusion Criteria

1. Patients known to be rheumatic heart disease
2. Patients known to be hypertensive
3. patients with documented significant coronary artery disease
4. patients taking drugs that affect QT interval
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Assiut University

OTHER

Sponsor Role lead

Responsible Party

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Fady Refaat Edwar Nasrallah

internal medicine resident,Assiut University hospital

Responsibility Role PRINCIPAL_INVESTIGATOR

Other Identifiers

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assiut university 7000

Identifier Type: -

Identifier Source: org_study_id

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