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DIRECT AUSCULTATION OF THE HEART AS REPORTED BY LAENNEC
127
EXCISION AND REPLACEMENT OF CANINE HEART Table 3-S11rvival Time and Came of Death
in Seven Animals Sllroiving More Than One Dall Identification No.
9
Survival Time
Cause of Death
11
18 mo 2.5 wk
12
2.0wk
13 15
10 days 1 day
Infection Pulmonary and riJ(ht heart failure Hemorrhage (technical) Heart failure Heart failure
21 22
7 days 12mo
Infection Infection
Contributory Causes Dirofilaria immitis
hemorrhage. In two of these three cases, Dirofilaria immitis contributed to the problem. REFERENCES
1 CooPER, T., GILBERT, J. W., JR., BLOODWELL, R. D., AND 2
3 Dirofilaria immitis
animal died of a disruption of the aortic suture line--a clear-cut technical cause of death. In three of the animals, the cause of death is unclear. The most striking features were the pulmonary edema and congestion and intra-alveolar
4
5
CROUT, J. R.: Chronic extrusic cardiac denervation of regional neural ablation, Cire. Res., 9:275, 1961. CASS, M. H., AND BR
R. B., ASD SHUMWAY, N. E.: Successful
homotransplantation of the canine heart after anoxic preservation for seven hours, Amer. ]. SurR., 104:302, 1962.
Reprint requests: Dr. Berkley. 521 First Avenue, Gallipolis, Ohio 456.'31.
DIRECT AUSCULTATION OF THE HEART AS REPORTED BY LAENNEC "I was consulted in 1816 by a young lady who presented the general symptoms of heart disease and with whom the application of the hand and percussion gave poor results owing to stoutness. The age and sex of the patient forbidding the type of examination of which I have just spoken (direct auscultation), I remembered a well-known phenomenon of acoustics: if the ear is applied to one end of a beam, a pin prick is most distinctly heard at the other end. I thought that maybe I could make use of this fact in this particular case. I took some sheets of paper and, rolling them very tightly, I applied one end to the precordial region and plac-
DIS. CHEST, VOL. 54. NO.2. AUGUST 1968
ing my ear at the other end, I was as surprised as I was gratified to hear the beating of the heart much more clearly and distinctly than if I had applied my ear directly to the chest. It occurred to me that this means could become a useful method, applicable not only to the study of the heart beats but also to that of all movements that might produce sound in the thoracic cavity. It might, for example, help in the investigation of breathing, voice production, wheezing, and even pleural and pericardial effusions." Kervran, R.: Laermec; His Life and Times, Pergamon Press, New York. 1960
47
EXCISION AND REPLACEMENT OF CANINE HEART Table 3-S11rvival Time and Came of Death
in Seven Animals Sllroiving More Than One Dall Identification No.
9
Survival Time
Cause of Death
11
18 mo 2.5 wk
12
2.0wk
13 15
10 days 1 day
Infection Pulmonary and riJ(ht heart failure Hemorrhage (technical) Heart failure Heart failure
21 22
7 days 12mo
Infection Infection
Contributory Causes Dirofilaria immitis
hemorrhage. In two of these three cases, Dirofilaria immitis contributed to the problem. REFERENCES
1 CooPER, T., GILBERT, J. W., JR., BLOODWELL, R. D., AND 2
3 Dirofilaria immitis
animal died of a disruption of the aortic suture line--a clear-cut technical cause of death. In three of the animals, the cause of death is unclear. The most striking features were the pulmonary edema and congestion and intra-alveolar
4
5
CROUT, J. R.: Chronic extrusic cardiac denervation of regional neural ablation, Cire. Res., 9:275, 1961. CASS, M. H., AND BR
R. B., ASD SHUMWAY, N. E.: Successful
homotransplantation of the canine heart after anoxic preservation for seven hours, Amer. ]. SurR., 104:302, 1962.
Reprint requests: Dr. Berkley. 521 First Avenue, Gallipolis, Ohio 456.'31.
DIRECT AUSCULTATION OF THE HEART AS REPORTED BY LAENNEC "I was consulted in 1816 by a young lady who presented the general symptoms of heart disease and with whom the application of the hand and percussion gave poor results owing to stoutness. The age and sex of the patient forbidding the type of examination of which I have just spoken (direct auscultation), I remembered a well-known phenomenon of acoustics: if the ear is applied to one end of a beam, a pin prick is most distinctly heard at the other end. I thought that maybe I could make use of this fact in this particular case. I took some sheets of paper and, rolling them very tightly, I applied one end to the precordial region and plac-
DIS. CHEST, VOL. 54. NO.2. AUGUST 1968
ing my ear at the other end, I was as surprised as I was gratified to hear the beating of the heart much more clearly and distinctly than if I had applied my ear directly to the chest. It occurred to me that this means could become a useful method, applicable not only to the study of the heart beats but also to that of all movements that might produce sound in the thoracic cavity. It might, for example, help in the investigation of breathing, voice production, wheezing, and even pleural and pericardial effusions." Kervran, R.: Laermec; His Life and Times, Pergamon Press, New York. 1960
47