Electrocardiographic Observations on die Heart of the Guppy (Lebistes reticulatus)

A. G. WEINBERG; H. K. HELLERSTEIN

doi:10.3181/00379727-110-27483

Electrocardiographic Observations on die Heart of the Guppy (Lebistes reticulatus)

A. G. WEINBERG, H. K. HELLERSTEIN

Pathology

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Abstract

1. A method is described whereby the electrocardiogram of a small fish may be easily and reproducibly recorded after urethane anesthesia. 2. The anatomy of the heart of the common guppy (Lebistes reticulatus) was found to be similar to the hearts of larger teleosts. 3. The electrocardiogram and vectorcardiogram of the common guppy were characterized by the use of high gain and high speed recording apparatus. The electrocardiogram was found to consist of the same components present in the electrocardiograms of larger teleosts and mammals (P, QRS, and T). 4. Intraperitoneal injection of digitoxin (2.0 micrograms) produced typical changes in the electrocardiogram consisting of first, second, and third degree A-V block as well as Wenckebach phenomenon and ST displacement within 5 to 23 minutes (average 14.6 minutes).

Original language	English (US)
Pages (from-to)	255-258
Number of pages	4
Journal	Proceedings of the Society for Experimental Biology and Medicine
Volume	110
Issue number	2
DOIs	https://doi.org/10.3181/00379727-110-27483
State	Published - Jun 1962

ASJC Scopus subject areas

General Biochemistry, Genetics and Molecular Biology

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title = "Electrocardiographic Observations on die Heart of the Guppy (Lebistes reticulatus)",

abstract = "1. A method is described whereby the electrocardiogram of a small fish may be easily and reproducibly recorded after urethane anesthesia. 2. The anatomy of the heart of the common guppy (Lebistes reticulatus) was found to be similar to the hearts of larger teleosts. 3. The electrocardiogram and vectorcardiogram of the common guppy were characterized by the use of high gain and high speed recording apparatus. The electrocardiogram was found to consist of the same components present in the electrocardiograms of larger teleosts and mammals (P, QRS, and T). 4. Intraperitoneal injection of digitoxin (2.0 micrograms) produced typical changes in the electrocardiogram consisting of first, second, and third degree A-V block as well as Wenckebach phenomenon and ST displacement within 5 to 23 minutes (average 14.6 minutes).",

author = "WEINBERG, {A. G.} and HELLERSTEIN, {H. K.}",

note = "Funding Information: This investigation was supported in part by grants from Cleveland Area Heart Soc. and the Harry Sacks Memorial Fund, and was completed in partial fulfillment of the requirements for the M.D. degree, School of Medicine, Western Reserve University. 6 1962 110 2 255 258 ",

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month = jun,

doi = "10.3181/00379727-110-27483",

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AU - WEINBERG, A. G.

AU - HELLERSTEIN, H. K.

N1 - Funding Information: This investigation was supported in part by grants from Cleveland Area Heart Soc. and the Harry Sacks Memorial Fund, and was completed in partial fulfillment of the requirements for the M.D. degree, School of Medicine, Western Reserve University. 6 1962 110 2 255 258

PY - 1962/6

Y1 - 1962/6

N2 - 1. A method is described whereby the electrocardiogram of a small fish may be easily and reproducibly recorded after urethane anesthesia. 2. The anatomy of the heart of the common guppy (Lebistes reticulatus) was found to be similar to the hearts of larger teleosts. 3. The electrocardiogram and vectorcardiogram of the common guppy were characterized by the use of high gain and high speed recording apparatus. The electrocardiogram was found to consist of the same components present in the electrocardiograms of larger teleosts and mammals (P, QRS, and T). 4. Intraperitoneal injection of digitoxin (2.0 micrograms) produced typical changes in the electrocardiogram consisting of first, second, and third degree A-V block as well as Wenckebach phenomenon and ST displacement within 5 to 23 minutes (average 14.6 minutes).

AB - 1. A method is described whereby the electrocardiogram of a small fish may be easily and reproducibly recorded after urethane anesthesia. 2. The anatomy of the heart of the common guppy (Lebistes reticulatus) was found to be similar to the hearts of larger teleosts. 3. The electrocardiogram and vectorcardiogram of the common guppy were characterized by the use of high gain and high speed recording apparatus. The electrocardiogram was found to consist of the same components present in the electrocardiograms of larger teleosts and mammals (P, QRS, and T). 4. Intraperitoneal injection of digitoxin (2.0 micrograms) produced typical changes in the electrocardiogram consisting of first, second, and third degree A-V block as well as Wenckebach phenomenon and ST displacement within 5 to 23 minutes (average 14.6 minutes).

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Electrocardiographic Observations on die Heart of the Guppy (Lebistes reticulatus)

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