Document Detail


Berheim "a" wave: obstructed right ventricular inflow or atrial cross talk?
MedLine Citation:
PMID:  8518064     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To study the possible mechanisms underlying the dominant "a" wave in the jugular venous pulse seen in patients with left ventricular hypertrophy (Bernheim "a" wave).
DESIGN: Prospective examination of the left ventricular transverse and longitudinal axes, transmitral and transtricuspid flows, and jugular venous pulse recordings.
SETTING: Tertiary referral centre for cardiac disease.
SUBJECTS: 23 patients with left ventricular hypertrophy of various aetiologies and a dominant "a" wave in the jugular venous pulse. Controls were 21 normal volunteers.
RESULTS: Early diastolic filling of the right ventricle was normal. During right atrial systole the (mean(SD)) tricuspid ring motion was exaggerated (1.2(0.4) v 0.8(0.2) cm, p < 0.001) and Doppler A wave velocity slightly increased (0.3(0.1) v 0.2(0.08) m/s, p < 0.01), although the E wave remained dominant. By contrast left ventricular isovolumic relaxation time was longer than normal (70(20) v 55(10) ms, p < 0.001) with wall motion incoordinate in the septal long axis, 15%(9.5%) v 6.6%(3%) total excursion occurring before mitral valve opening. During early filling the extent of long axis motion was decreased to 0.6(0.5) cm from 1.1(0.2) cm, (p < 0.001) and 0.5(0.2) cm from 0.9(0.2) cm, (p < 0.0001) at the left and septal sites, and similarly its peak lengthening rate reduced to 5.4(2.5) cm/s from 10(3) cm, (p < 0.001) and 4.3(2.2) cm/s from 8(2) cm, (p < 0.001). The atrial component of long axis lengthening was increased to 43%(18%) from 29%(6%) (p < 0.01) and 55%(15%) from 33%(8%) of the total excursion (p < 0.0001). Left ventricular E/A ratio was less than normal (0.9(0.8) v 1.4(0.4), p < 0.05).
CONCLUSIONS: There is no evidence of obstruction or any other disturbance of early diastolic right ventricular inflow in Bernheim's syndrome. It is possible that the haemodynamically appropriate increase in left atrial activity is mirrored on the right side due to shared interatrial myocardial fibres. This could represent a form of atrial interaction.
Authors:
M Y Henein; H B Xiao; S J Brecker; D G Gibson
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  British heart journal     Volume:  69     ISSN:  0007-0769     ISO Abbreviation:  Br Heart J     Publication Date:  1993 May 
Date Detail:
Created Date:  1993-07-29     Completed Date:  1993-07-29     Revised Date:  2012-02-10    
Medline Journal Info:
Nlm Unique ID:  0370634     Medline TA:  Br Heart J     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  409-13     Citation Subset:  AIM; IM    
Affiliation:
Cardiac Department, Royal Brompton National Heart and Lung Hospital, London.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Aged, 80 and over
Atrial Function / physiology*
Echocardiography, Doppler*
Female
Humans
Hypertrophy, Left Ventricular / ultrasonography*
Jugular Veins
Male
Middle Aged
Prospective Studies
Pulse
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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