Heart murmur: Difference between revisions
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imported>Robert Badgett (New page: {{subpages}} In medicine, '''heart murmurs''' are the "heart sounds caused by vibrations resulting from the flow of blood through the heart. Heart murmurs can be examined by [[heart au...) |
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In [[medicine]], '''heart murmurs''' are the "heart sounds caused by vibrations resulting from the flow of blood through the heart. Heart murmurs can be examined by [[heart auscultation]], and analyzed by their intensity (6 grades), duration, timing (systolic, diastolic, or continuous), location, transmission, and quality (musical, vibratory, blowing, etc)."<ref>{{MeSH}}</ref> | In [[medicine]], '''heart murmurs''' are the "heart sounds caused by vibrations resulting from the flow of blood through the heart. Heart murmurs can be examined by [[heart auscultation]], and analyzed by their intensity (6 grades), duration, timing (systolic, diastolic, or continuous), location, transmission, and quality (musical, vibratory, blowing, etc)."<ref>{{MeSH}}</ref> | ||
==Classification== | |||
===Systolic murmurs=== | |||
A [[systematic review]] by the [http://jama.ama-assn.org/cgi/collection/rational_clinical_exam Rational Clinical Examination] addresses the diagnosis of systolic murmurs.<ref name="pmid9032164">{{cite journal |author=Etchells E, Bell C, Robb K |title=Does this patient have an abnormal systolic murmur? |journal=JAMA : the Journal of the American Medical Association |volume=277 |issue=7 |pages=564–71 |year=1997 |month=February |pmid=9032164 |doi= |url= |issn=}} [http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=9032164.ui Full text at OVID]</ref> | |||
===Diastolic murmurs=== | |||
==Auscultation== | |||
Murmurs may be graded by their loudness:<ref name="isbn1-4160-2898-6_p456">{{cite book |author=McGee, Steven R. |authorlink= |editor= |others= |title=Evidence-Based Physical Diagnosis: Text with BONUS PocketConsult Handheld Software |edition= |language= |publisher=Saunders |location=Philadelphia |year=2007 |origyear= |pages=456 |quote= |isbn=1-4160-2898-6 |oclc= |doi= |url= |accessdate=}}</ref> | |||
* Grade I - not heard immediately | |||
* Grade II - heard immediately | |||
* Grade III - hear immediately, but louder | |||
* Grade IV - associated with palpable thrill | |||
* Grade V - may be heard with stethoscope partially off the chest | |||
* Grade VI - may be heard with stethoscope off the chest | |||
==References== | ==References== | ||
Revision as of 02:28, 4 November 2008
In medicine, heart murmurs are the "heart sounds caused by vibrations resulting from the flow of blood through the heart. Heart murmurs can be examined by heart auscultation, and analyzed by their intensity (6 grades), duration, timing (systolic, diastolic, or continuous), location, transmission, and quality (musical, vibratory, blowing, etc)."[1]
Classification
Systolic murmurs
A systematic review by the Rational Clinical Examination addresses the diagnosis of systolic murmurs.[2]
Diastolic murmurs
Auscultation
Murmurs may be graded by their loudness:[3]
- Grade I - not heard immediately
- Grade II - heard immediately
- Grade III - hear immediately, but louder
- Grade IV - associated with palpable thrill
- Grade V - may be heard with stethoscope partially off the chest
- Grade VI - may be heard with stethoscope off the chest
References
- ↑ Anonymous (2024), Heart murmur (English). Medical Subject Headings. U.S. National Library of Medicine.
- ↑ Etchells E, Bell C, Robb K (February 1997). "Does this patient have an abnormal systolic murmur?". JAMA : the Journal of the American Medical Association 277 (7): 564–71. PMID 9032164. [e] Full text at OVID
- ↑ McGee, Steven R. (2007). Evidence-Based Physical Diagnosis: Text with BONUS PocketConsult Handheld Software. Philadelphia: Saunders, 456. ISBN 1-4160-2898-6.
Bibliography
- McGee, Steven R. (2007). Evidence-Based Physical Diagnosis: Text with BONUS PocketConsult Handheld Software. Philadelphia: Saunders. ISBN 1-4160-2898-6.
- Drummond Rennie; David Simel (2008). THE RATIONAL CLINICAL EXAMINATION: EVIDENCE-BASED CLINICAL DIAGNOSIS (Jama & Archives Journals). McGraw-Hill Professional. ISBN 0-07-159030-7.