30-04-2021

Pulsus Bigeminus



  1. Pulsus Bigeminus Definition
  2. Pulsus Bigeminus Meaning
  3. Pulsus Bigeminus Definition
  4. Pulsus Bigeminus Etiology
  5. Pulsus Bisferiens Waveform
Pulsus

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. Look for a pattern of what appears to be a relatively normal QRS complexes, each followed by a smaller, abnormal one. The peripheral pulse associated with such episodes is known as pulsus bigeminus. The most feared complication is its potential to develop into ventricular fibrillation and asystole. Immediate post-operative ventricular bigeminy in a patient operated for ovarian cystectomy: a case report.

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Pulsus bigeminus (195103000); Bigeminal pulse (195103000) Recent clinical studies. Extensive subcutaneous emphysema and hypercapnia during laparoscopic cholecystectomy: two case reports. Abe H, Bandai Y, Ohtomo Y, Shimomura K, Nayeem SA, Idezuki Y. 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. Look for a pat­tern of what ap­pears to be a rel­a­tively nor­mal QRS com­plexes, each fol­lowed by a smaller, ab­nor­mal one.

pulsus

[pul´sus] (L.)
pulsus alter´nansalternating pulse.
pulsus bisfe´riens a pulse characterized by two strong systolic peaks separated by a midsystolic dip, most commonly occurring in pure aortic regurgitation with stenosis.
pulsus dif´ferens inequality of the pulse observable at corresponding sites on either side of the body.
pulsus par´vus et tar´dus a small hard pulse that rises and falls slowly.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

pulse

(pŭls),
Rhythmic dilation of an artery, produced by the increased volume of blood thrown into the vessel by the contraction of the heart. A pulse may also at times occur in a vein or a vascular organ, such as the liver.
[L. pulsus]

pulse

(

Pulsus Bigeminus Definition

pŭls)
Palpable rhythmic expansion of an artery, produced by the increased volume of blood pushed or forced into the vessel by the contraction of the heart. A pulse may also at times occur in a vein or a vascular organ, such as the liver.
Synonym(s): pulsus.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

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Link to this page: Pulsus bigeminus causes
Heartbeat (normal)

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. Look for a pattern of what appears to be a relatively normal QRS complexes, each followed by a smaller, abnormal one. The smaller beat is palpated as either a missing or an extra beat, and on EKG resembles a PVC.[1] These PVCs appearing every other beat are also called extrasystoles.

This phenomenon can be a sign of hypertrophic obstructive cardiomyopathy or of many other types of heart disease (see list below). Other causes include digitalis toxicity, induction of anesthesia,[2] placement of surgical instrumentation into the thorax or as a benign, temporary phenomenon.

In Pulsus Bigeminus not all of the conducted electrical activity will elicit sufficient ventricular contraction to produce a palpable pulse. This is important for two reasons. One, an ECG may give a ventricular contraction rate that does not correspond to the palpated pulse rate. Secondly, because not all beats are being conducted, patients may present with symptoms of low output heart failure, e.g. Dizziness, shortness of breath or hypotension, even with a normal ECG.

Cause[edit]

Bigeminus

Causes Include:

  1. Electrolyte imbalance e.g. Hypo or hyperkalemia
  2. Betablocker therapy
  3. Destruction or degeneration of the cardiac conduction system or heart muscle cells
  4. Infection

Pulsus Bigeminus Meaning

A doctor can discriminate pulsus bigeminus from pulsus alternans by auscultating the heart.

Bigeminus

Management[edit]

Pulsus Bigeminus Definition

Management includes looking for and removing underlying cause, including medicines (such as a Calcium Channel blocker) and inotropic therapy to return cardiac output back to normal. If highly symptomatic over a longer period ablation therapy may be the only viable option.

See also[edit]

Pulsus Bigeminus Etiology

References[edit]

  1. ^Anand, Nidhi; Manish Anand; Alok Vardhan Mathur; Madhukar Maletha; SK Ghildyal (2010-02-03). 'Intra-operative ventricular bigeminy: Can retractor be a cause'. Journal of Anaesthesiology Clinical Pharmacology. 26 (4): 569–570. Retrieved 2012-05-16.
  2. ^ROLLASON, WN; D. J. HALL (March 1973). 'Dysrhythmias during inhalational anaesthesia for oral surgery'. Anaesthesia. 28 (2): 139–145. doi:10.1111/j.1365-2044.1973.tb00305.x.


Pulsus Bisferiens Waveform

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