Congenital Heart Block

Yater, Wallace M.; Leaman, William G.; Cornell, Virgil H.

doi:10.1001/jama.1934.02750200010004

Cited by 42 publications

(1 citation statement)

References 6 publications

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“…The bundle is preserved between the posterior endocardial cushion and the posterior portion of the annular fibrosis (Yater, Leaman, and Cornell, 1934;Moll, 1912;and Tandler, 1913).…”

Section: Discussionmentioning

confidence: 99%

Congenital Heart Block: Report of a Case

Stein¹,

Uhr²

1942

Heart

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The comparative rarity of congenital heart block as recorded in medical journals warrants the addition of another case to this collection. Up to 1938 approximately 55 cases have been described.There is no doubt that one of the reasons for not discovering these cases early in childhood is that signs and symptoms are usually absent or only minimal, and that the heart rate is inclined to be more rapid than in cases with acquired complete heart block (Campbell and Suzman, 1934). It is only when some other medical condition brings such a person to a physician that the heart block may be discovered. Sometimes this person may be examined by several competent doctors before the defect is accidentally stumbled upon. This is illustrated by the presentation of the following case. A white, female child, aged 3 years, was brought to the hospital in February 1940 with the complaint of a purulent discharge from the right ear of one year's duration. This had started four months after an uneventful convalescence from measles, when she had been treated by a physician who made no comment about her heart. Two previous attacks of acute bronchitis also requiring the attention of a physician had caused no comment relative to her heart. Otherwise she had always been a normal-looking, well-nourished, and healthy, active youngster, without any cardiac signs or symptoms. She was a full-term baby, delivered normally, and experienced no difficulties in her babyhood. A clinical diagnosis of right acute mastoiditis was made. There were no other findings at this time. The intern made a note that he heard no murmurs over the praecordium but did not record the pulse or cardiac rate. The nurse's chart showed a pulse rate of 80. She had an operation on the same day.During the entire time of operation the anesthetist noted the pulse rate as being 56, and brought it to the surgeon's attention. Her condition despite this rate was good. The oto-laryngologist commented on the 'possibility of the low rate being due to an intradural abscess, and after completing a simple mastoidectomy asked for a neurological consultation.

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“…The bundle is preserved between the posterior endocardial cushion and the posterior portion of the annular fibrosis (Yater, Leaman, and Cornell, 1934;Moll, 1912;and Tandler, 1913).…”

Section: Discussionmentioning

confidence: 99%

Congenital Heart Block: Report of a Case

Stein¹,

Uhr²

1942

Heart

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Auriculoventricular Heart Block Due to Bilateral Bundle-Branch Lesions

Yater¹,

Cornell²,

Claytor³

1936

Arch Intern Med (Chic)

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Familial Congenital Complete Heart Block

Lynch¹

1961

Am J Dis Child

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In general, the occurrence of congenital heart disease may be considered to be due to genetic factors, environmental factors, or a combination of the two. When an identical defect is found in more than one member of the same family, a genetic etiology is suggested. The medical literature reveals numerous reports of a wide variety of congenital heart lesions occurring in families. Taussig,1 for example, reported on a family in which patent ductus arteriosus appeared in 3 successive generations. This experience provides strong exidence that at least certain types of congenital heart lesions may have a genetic basis.Complete congenital heart block is an uncommon lesion, having been reported only slightly over 100 times in the world literature. The etiology of this condition remains unsettled. Autopsy reports2-9 which include detailed histologic study of the conduction system have revealed that most often the atrioventricular node was separated from the rest of the conduction system by the central fibrous body. In others the bundle of His was rudimentary or could not be identified. These observations have not been consistent enough to make clear the pathol¬ ogy of this condition. The occurrence of this defect in members of the same family has been reported,e'10"13 giving evidence in favor of a genetic etiology.

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Congenital Heart Block

Cited by 42 publications

References 6 publications

Congenital Heart Block: Report of a Case

Congenital Heart Block: Report of a Case

Auriculoventricular Heart Block Due to Bilateral Bundle-Branch Lesions

Familial Congenital Complete Heart Block

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