Clinical Disorders of the Heart Beat

Bellet, Samuel

doi:10.1097/00000441-195405000-00037

Cited by 77 publications

(61 citation statements)

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“…Various workers [3,4,6,8] have reported varying incidence ranging from 21.3 per cent to 82 per cent. Bellet [10] described tall and peaked T waves only in severe cases of viral hepatitis. How› ever no such correlation was noticed in the present study.…”

Section: Resultsmentioning

confidence: 99%

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Electrocardiographic Changes in Viral Hepatitis

Virmani

1996

Medical Journal Armed Forces India

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Electrocardiograms of 322 patients with viral hepatitis were examined. Abnormal electrocardiograms were found in 229 patients (71.1%). The commonest abnormalities were T wave changes in 27 per cent. Other significant abnormalities were sinus bradycardia (13.7%), ST segment changes (5.7%), ventricular premature beats (2.5%) and U waves (6.5%). All the electrocardiographic abnormalities were transient and had no correlation with the severity or duration of illness. MJAFI 1996; 52 : 22]-224

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Section: Resultsmentioning

confidence: 99%

“…P wave abnormalities in form of /lat P waves or P mitrale were seen in only 4 cases (1.2%), while it was once reported as 4 per cent [6]. Lymphocytic infiltration of the myocardium especially the atrial myocardium occurs in viral hepatitis and this may be responsible for P wave changes [10].…”

Section: Resultsmentioning

confidence: 99%

Electrocardiographic Changes in Viral Hepatitis

Virmani

1996

Medical Journal Armed Forces India

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“…An extensive survey of the literature [3,4,16,17,19,33,36, 431 revealed no satisfactory scheme for classification of regular cardiac rhythm according to frontal plane P wave axis other than the descriptive terms 'normal' or 'coronary sinus rhythm' [34]. It appears that a more detailed classification of frontal P wave axis is possible and such a scheme has been used in this study.…”

Section: Methodsmentioning

confidence: 91%

“…Abnormally increased rhythmicity of the nodal area [3,14,161 or bundle of HIS [12] has been assumed to cause this arrhythmia.…”

Section: Methodsmentioning

confidence: 99%

Abnormal Rhythms Associated with Persistent Left Superior Vena Cava

Momma

Linde

1969

Pediatr Res

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ExtractT h e electrocardiograms of 2 6 patients with persistent left superior vena cava ( S V C ) draining into t h e coronary sinus were reviewed. Left axis of P waves between + 15 a n d -29 degrees was observcd in nine cases, including t w o of three cases of persistent left SVC with absent right SI'C. Isorhythmic A-V dissociation with interference was observed in o n e subject.T h e study of t h e P wave i n five groups of patients with presumably normal caval drainage revealed t h a t frontal P wave axis fell usually between +20 a n d +70 degrees. SpeculationLeft axis of the P waves, if present i n patients with congenital h e a r t defects, m a y suggest persistent left superior vena cava draining to t h e coronary sinus. F u r t h e r pathologic a n d histologic study is needed to clarify t h e pathogenesis of these a b n o r m a l cardiac rhythms a n d t h e possible embryologic relation between persistent left superior v e n a cava a n d a n ectopic pacemaker.

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“…The mechanism for genesis of this VT may not be re-entry but rather enhanced automaticity independent of the calcium inward current. --ventricular tachycardia; intracoronary injection; endocardial electrography The incidence of VT per se is not quite high, although many methods for experimental production of VT in animal study have been reported (Siebecker et al 1961;Scherf and Bornemann 1967;Wallace et al 1967;Bellet 1971;Lown et al 1977) and ventricular tachyarrhythmias including VT can be induced by these methods. In the previous reports (Abe 1979(Abe , 1980) the author demonstrated with surface electrocardiography (ECG) that VT could be successfully elicited by intracoronary injections of hyperosmotic solutions in canine hearts with 100% incidence.…”

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Observations with endocardial electrography on ventricular tachycardia by intracoronary saline in dogs.

Abe¹

1982

Tohoku J. Exp. Med.

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Selective injection of 1.5 ml of 10% saline into the left circumflex coronary artery (LCX) was carried out during sinus rhythm twice in each of 15 mongrel dogs anesthetized with sodium pentobarbital, and multiple endocardial recordings including His bundle electrogram (HBE) were made. Ventricular tachycardia (VT) was elicited in all of the 15 dogs both in the first and second injections. The cycle length of sinus rhythm before injection was 468+88 msec (mean+s.D.). The coupling interval between the last depolarization of the left ventricle (LV) of sinus origin and the first premature LV depolarization of the VT was 395+57 msec. Coupling interval between the first and the second LV depolarizations was 348+78 msec. Significant difference was noted between any pair of these values (p<0.01). No bundle branch re-entry in the beginning of VT was observed. The site of origin of the VT was referred to the LV in 13 dogs. Rapid pacing during paroxysm of VT applied at the apex of the LV made no marked influence upon VT after pacing. The calcium channel blocker, diltiazem failed to block the production of VT. The mechanism for genesis of this VT may not be re-entry but rather enhanced automaticity independent of the calcium inward current. --ventricular tachycardia; intracoronary injection; endocardial electrography The incidence of VT per se is not quite high, although many methods for experimental production of VT in animal study have been reported (Siebecker et al. 1961;Scherf and Bornemann 1967;Wallace et al. 1967;Bellet 1971;Lown et al. 1977) and ventricular tachyarrhythmias including VT can be induced by these methods. In the previous reports (Abe 1979(Abe , 1980) the author demonstrated with surface electrocardiography (ECG) that VT could be successfully elicited by intracoronary injections of hyperosmotic solutions in canine hearts with 100% incidence. In the present experiments VT produced by intracoronary hyperosmotic saline was studied with endocardial electrography. METHODSFifteen mongrel dogs weighing between 20 and 29 kg (average, 24.6 kg) were anesthetized with intramuscular sodium pentobarbital (35 mg/kg), incubated with a cuffed

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Clinical Disorders of the Heart Beat

Cited by 77 publications

References 0 publications

Electrocardiographic Changes in Viral Hepatitis

Electrocardiographic Changes in Viral Hepatitis

Abnormal Rhythms Associated with Persistent Left Superior Vena Cava

Observations with endocardial electrography on ventricular tachycardia by intracoronary saline in dogs.

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