Pulsus bigeminus: Difference between revisions
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'''Pulsus bigeminus''' is a cardiovascular phenomenon characterized by groups of two [[Cardiac cycle|heartbeats]] close together followed by a longer pause. The second pulse is weaker than the first. It is caused by premature contractions (see [[Premature atrial contraction]] or [[Premature ventricular contraction|ventricular]]), usually of the [[Ventricle (heart)|ventricles]], after every other beat, so called extrasystoles. It can be a sign of [[hypertrophic obstructive cardiomyopathy]] or of many other types of heart disease. It can also be an innocent and passing phenomenon. Digitalis toxicity can cause this type of phenomenon. |
'''Pulsus bigeminus''' is a cardiovascular phenomenon characterized by groups of two [[Cardiac cycle|heartbeats]] close together followed by a longer pause. The second pulse is weaker than the first. It is caused by premature contractions (see [[Premature atrial contraction]] or [[Premature ventricular contraction|ventricular]]), usually of the [[Ventricle (heart)|ventricles]], after every other beat, so called extrasystoles. It can be a sign of [[hypertrophic obstructive cardiomyopathy]] or of many other types of heart disease. It can also be an innocent and passing phenomenon. Digitalis toxicity can cause this type of phenomenon. |
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It is important to look for peripheral pulse deficit since the ECG may give a heart rate of 60 beats per minute infact the palpated pulse is only 30 because the 2 nd beat is not producing a sufficient cardiac stroke volume hence the cardiac output is low and the patients is symptomatic e.g. Dizziness, shortness of breath or hypotension. |
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Treatment is to look for underlying cause and if possible treat this or stop the causing noxe |
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Atropin |
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Effortil |
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Causes |
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Electrolyte imbalance e.g. Hypo or hyperkalemia |
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Hypothyroidism |
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Betablockertherapy |
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Digoxin |
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Myocardial ischemia |
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Destruction or degeneration of the cardiac conduction system or heartmusclecells |
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==See also== |
==See also== |
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{{DEFAULTSORT:Pulsus Bigeminus}} |
{{DEFAULTSORT:Pulsus Bigeminus}} |
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[[Category:Cardiovascular diseases]] |
[[Category:Cardiovascular diseases]] |
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Revision as of 19:37, 28 January 2012
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Pulsus bigeminus is a cardiovascular phenomenon characterized by groups of two heartbeats close together followed by a longer pause. The second pulse is weaker than the first. It is caused by premature contractions (see Premature atrial contraction or ventricular), usually of the ventricles, after every other beat, so called extrasystoles. It can be a sign of hypertrophic obstructive cardiomyopathy or of many other types of heart disease. It can also be an innocent and passing phenomenon. Digitalis toxicity can cause this type of phenomenon. It is important to look for peripheral pulse deficit since the ECG may give a heart rate of 60 beats per minute infact the palpated pulse is only 30 because the 2 nd beat is not producing a sufficient cardiac stroke volume hence the cardiac output is low and the patients is symptomatic e.g. Dizziness, shortness of breath or hypotension. Treatment is to look for underlying cause and if possible treat this or stop the causing noxe Atropin Effortil
Causes Electrolyte imbalance e.g. Hypo or hyperkalemia Hypothyroidism Betablockertherapy Digoxin Myocardial ischemia Destruction or degeneration of the cardiac conduction system or heartmusclecells
See also
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