Prominent anterior QRS forces

Clinical, electrocardiographic and prospective study

Nelly Pararella, Paolo Alboni, Riccardo Cappato, Roberto Pirani, Paolo Gruppillo, Sabino Preziosi, Renato Battaglia, Rosario Corio, Gianfranco Occari, Caterina Berti, Tristano Sapigni

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Recent data suggest that the prominent anterior QRS forces (R≥S in V1 and/or V2 leads), in the absence of posterior myocardial infarction, right ventricular hypertrophy, or WPW syndrome, are related to an intraventricular conduction disturbance, at times rate-dependent. We followed 240 subjects with prominent anterior QRS forces and without the above mentioned diseases (study group), (mean age: 44.6±16 years, mean follow-up: 8±2 years) and 240 subjects without the anterior displacement (control group), (mean age: 44.4±14 years, mean follow-up: 7.9±1.9 years). The age distribution, sex, prevalence of organic heart disease, and follow-up period did not show significant differences between the two groups. QRS duration, prevalence of left ventricular hypertrophy pattern, S1 S2 S3 morphology, terminal r wave in AVR and s wave in V6 were similar in the two groups. During the follow-up period the incidence of right and left bundle branch block and fascicular block was very similar in the two groups of patients. These data suggest that prominent anterior QRS forces do not appear to be related to an initial involvement of the main bundle branches and fascicles and do not increase the likelihood of appearance of an intraventricular block of more advanced degree. The clinical, ECG and prospective data are not helpful in localizing either the ventricle or the area of the ventricle affected by conduction disturbance responsible for the anterior displacement. Our data suggest that the prominent anterior QRS forces express a normal variant of ventricular depolarization and that this finding does not have, per se, any unfavourable clinical implication.

Original languageEnglish
Pages (from-to)233-240
Number of pages8
JournalJournal of Electrocardiology
Volume20
Issue number3
DOIs
Publication statusPublished - 1987

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Bundle-Branch Block
Prospective Studies
Right Ventricular Hypertrophy
Wolff-Parkinson-White Syndrome
Age Distribution
Left Ventricular Hypertrophy
Heart Diseases
Electrocardiography
Age Groups
Myocardial Infarction
Control Groups
Incidence
Clinical Studies

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Cite this

Prominent anterior QRS forces : Clinical, electrocardiographic and prospective study. / Pararella, Nelly; Alboni, Paolo; Cappato, Riccardo; Pirani, Roberto; Gruppillo, Paolo; Preziosi, Sabino; Battaglia, Renato; Corio, Rosario; Occari, Gianfranco; Berti, Caterina; Sapigni, Tristano.

In: Journal of Electrocardiology, Vol. 20, No. 3, 1987, p. 233-240.

Research output: Contribution to journalArticle

Pararella, N, Alboni, P, Cappato, R, Pirani, R, Gruppillo, P, Preziosi, S, Battaglia, R, Corio, R, Occari, G, Berti, C & Sapigni, T 1987, 'Prominent anterior QRS forces: Clinical, electrocardiographic and prospective study', Journal of Electrocardiology, vol. 20, no. 3, pp. 233-240. https://doi.org/10.1016/S0022-0736(87)80021-3
Pararella, Nelly ; Alboni, Paolo ; Cappato, Riccardo ; Pirani, Roberto ; Gruppillo, Paolo ; Preziosi, Sabino ; Battaglia, Renato ; Corio, Rosario ; Occari, Gianfranco ; Berti, Caterina ; Sapigni, Tristano. / Prominent anterior QRS forces : Clinical, electrocardiographic and prospective study. In: Journal of Electrocardiology. 1987 ; Vol. 20, No. 3. pp. 233-240.
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AU - Pararella, Nelly

AU - Alboni, Paolo

AU - Cappato, Riccardo

AU - Pirani, Roberto

AU - Gruppillo, Paolo

AU - Preziosi, Sabino

AU - Battaglia, Renato

AU - Corio, Rosario

AU - Occari, Gianfranco

AU - Berti, Caterina

AU - Sapigni, Tristano

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N2 - Recent data suggest that the prominent anterior QRS forces (R≥S in V1 and/or V2 leads), in the absence of posterior myocardial infarction, right ventricular hypertrophy, or WPW syndrome, are related to an intraventricular conduction disturbance, at times rate-dependent. We followed 240 subjects with prominent anterior QRS forces and without the above mentioned diseases (study group), (mean age: 44.6±16 years, mean follow-up: 8±2 years) and 240 subjects without the anterior displacement (control group), (mean age: 44.4±14 years, mean follow-up: 7.9±1.9 years). The age distribution, sex, prevalence of organic heart disease, and follow-up period did not show significant differences between the two groups. QRS duration, prevalence of left ventricular hypertrophy pattern, S1 S2 S3 morphology, terminal r wave in AVR and s wave in V6 were similar in the two groups. During the follow-up period the incidence of right and left bundle branch block and fascicular block was very similar in the two groups of patients. These data suggest that prominent anterior QRS forces do not appear to be related to an initial involvement of the main bundle branches and fascicles and do not increase the likelihood of appearance of an intraventricular block of more advanced degree. The clinical, ECG and prospective data are not helpful in localizing either the ventricle or the area of the ventricle affected by conduction disturbance responsible for the anterior displacement. Our data suggest that the prominent anterior QRS forces express a normal variant of ventricular depolarization and that this finding does not have, per se, any unfavourable clinical implication.

AB - Recent data suggest that the prominent anterior QRS forces (R≥S in V1 and/or V2 leads), in the absence of posterior myocardial infarction, right ventricular hypertrophy, or WPW syndrome, are related to an intraventricular conduction disturbance, at times rate-dependent. We followed 240 subjects with prominent anterior QRS forces and without the above mentioned diseases (study group), (mean age: 44.6±16 years, mean follow-up: 8±2 years) and 240 subjects without the anterior displacement (control group), (mean age: 44.4±14 years, mean follow-up: 7.9±1.9 years). The age distribution, sex, prevalence of organic heart disease, and follow-up period did not show significant differences between the two groups. QRS duration, prevalence of left ventricular hypertrophy pattern, S1 S2 S3 morphology, terminal r wave in AVR and s wave in V6 were similar in the two groups. During the follow-up period the incidence of right and left bundle branch block and fascicular block was very similar in the two groups of patients. These data suggest that prominent anterior QRS forces do not appear to be related to an initial involvement of the main bundle branches and fascicles and do not increase the likelihood of appearance of an intraventricular block of more advanced degree. The clinical, ECG and prospective data are not helpful in localizing either the ventricle or the area of the ventricle affected by conduction disturbance responsible for the anterior displacement. Our data suggest that the prominent anterior QRS forces express a normal variant of ventricular depolarization and that this finding does not have, per se, any unfavourable clinical implication.

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