| Alterations of cardiovascular functional parameters after onset of heat stroke in rats. | |
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MedLine Citation:
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PMID: 8020333 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The effects of heat stroke formation on electrocardiogram (ECG) and blood pressure (BP) waveform parameters were assessed in rats under urethane anesthesia. Heat stroke was induced by exposing anesthetized rats to an environmental temperature of 42 degrees C. The movement in which arterial pressure began to decrease was taken as the onset of heat stroke. It was found that the duration of either P were, Q wave, R wave, S wave, T wave or QRS complex, as well as the amplitude of either P wave, Q wave, S wave or T wave were not affected after onset of heat stroke. However, the amplitude of R wave, the P-P interval, the R-R interval and the Q-T interval were significantly decreased after onset of heat stroke. In addition, the peak amplitude of systolic wave, dicrotic notch, diastolic wave, the duration of either systolic wave, a whole BP cycle, diastolic wave or dicrotic wave, the pulse pressure, as well as the mean arterial pressure were also decreased after onset of heat stroke. On the other hand, heat stroke formation increased the heart rate. The results demonstrated that alterations of these ECG and BP waveform parameters occurred after onset of heat stroke in rats. |
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Authors:
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M S Young; H F Pan; T Y Kao; M T Lin |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: The Chinese journal of physiology Volume: 36 ISSN: 0304-4920 ISO Abbreviation: Chin J Physiol Publication Date: 1993 |
Date Detail:
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Created Date: 1994-08-04 Completed Date: 1994-08-04 Revised Date: 2009-08-12 |
Medline Journal Info:
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Nlm Unique ID: 7804502 Medline TA: Chin J Physiol Country: TAIWAN |
Other Details:
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Languages: eng Pagination: 193-8 Citation Subset: IM |
Affiliation:
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Department of Electrical Engineering, National Cheng Kung University Medical College Tainan City, Taiwan, Republic of China. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Anesthesia Animals Blood Pressure / physiology Body Temperature / physiology Diastole / physiology Electrocardiography Heart Rate / physiology Hemodynamics / physiology* Hot Temperature* Male Rats Rats, Sprague-Dawley Stress, Physiological / physiopathology* Systole / physiology Urethane |
| Chemical | |
Reg. No./Substance:
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51-79-6/Urethane |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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