Left ventricular hypertrophy: Difference between revisions

From Citizendium
Jump to navigation Jump to search
imported>Robert Badgett
(New page: Left ventricular hypertrophy is defined as left ventricular mass index > 118 g/m2 in men and > 104 g/m2 in women.<ref name="pmid1401620">{{cite journal |author=Molloy TJ, Okin PM, Devereux...)
 
mNo edit summary
 
(5 intermediate revisions by 3 users not shown)
Line 1: Line 1:
{{subpages}}
Left ventricular hypertrophy is defined as left ventricular mass index > 118 g/m2 in men and > 104 g/m2 in women.<ref name="pmid1401620">{{cite journal |author=Molloy TJ, Okin PM, Devereux RB, Kligfield P |title=Electrocardiographic detection of left ventricular hypertrophy by the simple QRS voltage-duration product |journal=J. Am. Coll. Cardiol. |volume=20 |issue=5 |pages=1180–6 |year=1992 |pmid=1401620 |doi=}}</ref>
Left ventricular hypertrophy is defined as left ventricular mass index > 118 g/m2 in men and > 104 g/m2 in women.<ref name="pmid1401620">{{cite journal |author=Molloy TJ, Okin PM, Devereux RB, Kligfield P |title=Electrocardiographic detection of left ventricular hypertrophy by the simple QRS voltage-duration product |journal=J. Am. Coll. Cardiol. |volume=20 |issue=5 |pages=1180–6 |year=1992 |pmid=1401620 |doi=}}</ref>


==Diagnosis==
==Diagnosis==
===Electrocardiogram===
===Electrocardiogram===
====Criteria====
Various electrocardiographic criteria exist: Sokolow-Lyon index, Cornell voltage index, Cornell product, Gubner, and Romhilt-Estes score.<ref name="pmid17726091">{{cite journal |author=Pewsner D, Jüni P, Egger M, Battaglia M, Sundström J, Bachmann LM |title=Accuracy of electrocardiography in diagnosis of left ventricular hypertrophy in arterial hypertension: systematic review |journal=BMJ |volume=335 |issue=7622 |pages=711 |year=2007 |pmid=17726091 |doi=10.1136/bmj.39276.636354.AE}}</ref>
Various electrocardiographic criteria exist: Sokolow-Lyon index, Cornell voltage index, Cornell product, Gubner, and Romhilt-Estes score.<ref name="pmid17726091">{{cite journal |author=Pewsner D, Jüni P, Egger M, Battaglia M, Sundström J, Bachmann LM |title=Accuracy of electrocardiography in diagnosis of left ventricular hypertrophy in arterial hypertension: systematic review |journal=BMJ |volume=335 |issue=7622 |pages=711 |year=2007 |pmid=17726091 |doi=10.1136/bmj.39276.636354.AE}}</ref>
Sokolow-Lyon index
Sokolow-Lyon index
Line 33: Line 35:
** intrinsicoid deflection (interval between start of QRS complex and peak of the R wave) in V5 or V6 0.05 s or more
** intrinsicoid deflection (interval between start of QRS complex and peak of the R wave) in V5 or V6 0.05 s or more


====Sensitivity and specificity====
A [[systematic review]] found that the accuracy of the electrocardiographic indices and criteria for diagnosing left ventricular hypertrophy is:<ref name="pmid17726091"/>
A [[systematic review]] found that the accuracy of the electrocardiographic indices and criteria for diagnosing left ventricular hypertrophy is:<ref name="pmid17726091"/>
* [[sensitivity (tests)|sensitivity]] 11% to 21%
* [[sensitivity (tests)|sensitivity]] 11% to 21%
* [[specificity (tests)|specificity]] 89% to 99%
* [[specificity (tests)|specificity]] 89% to 99%
==Treatment==
[[Adrenergic beta-antagonist]]s may be less effective according to [[meta-analysis|meta-analyses]]<ref name="pmid19770405">{{cite journal| author=Fagard RH, Celis H, Thijs L, Wouters S| title=Regression of left ventricular mass by antihypertensive treatment: a meta-analysis of randomized comparative studies. | journal=Hypertension | year= 2009 | volume= 54 | issue= 5 | pages= 1084-91 | pmid=19770405 | doi=10.1161/HYPERTENSIONAHA.109.136655 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=19770405  }} </ref><ref name="pmid12867233">{{cite journal| author=Klingbeil AU, Schneider M, Martus P, Messerli FH, Schmieder RE| title=A meta-analysis of the effects of treatment on left ventricular mass in essential hypertension. | journal=Am J Med | year= 2003 | volume= 115 | issue= 1 | pages= 41-6 | pmid=12867233 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=12867233  }} </ref> of [[randomized controlled trial]]s such as LIFE<ref name="pmid12899584">{{cite journal| author=Devereux RB, Dahlöf B, Kjeldsen SE, Julius S, Aurup P, Beevers G et al.| title=Effects of losartan or atenolol in hypertensive patients without clinically evident vascular disease: a substudy of the LIFE randomized trial. | journal=Ann Intern Med | year= 2003 | volume= 139 | issue= 3 | pages= 169-77 | pmid=12899584 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=12899584  }} </ref> and others<ref name="pmid2139175">{{cite journal| author=Schulman SP, Weiss JL, Becker LC, Gottlieb SO, Woodruff KM, Weisfeldt ML et al.| title=The effects of antihypertensive therapy on left ventricular mass in elderly patients. | journal=N Engl J Med | year= 1990 | volume= 322 | issue= 19 | pages= 1350-6 | pmid=2139175 | doi=10.1056/NEJM199005103221904 | pmc= | url= }} </ref>.
== See also ==
* [[Salt and health]]


==References==
==References==
<references/>
<references/>[[Category:Suggestion Bot Tag]]
 
[[Category:CZ Live]] [[Category:Health Sciences Workgroup]]

Latest revision as of 06:00, 11 September 2024

This article is a stub and thus not approved.
 Main Article
 Discussion
Related Articles  [?]
Bibliography  [?]
External Links  [?]
Citable Version  [?]
 
https://en.citizendium.org/wiki/index.php?title=Left_ventricular_hypertrophy&printable=yes
This editable Main Article is under development and subject to a disclaimer.

Left ventricular hypertrophy is defined as left ventricular mass index > 118 g/m2 in men and > 104 g/m2 in women.[1]

Diagnosis

Electrocardiogram

Criteria

Various electrocardiographic criteria exist: Sokolow-Lyon index, Cornell voltage index, Cornell product, Gubner, and Romhilt-Estes score.[2] Sokolow-Lyon index

  • SV1+RV5>3.5 mV

or

  • V6>3.5 mV

Cornell voltage index

  • Males: RaVL+SV3>2.8 mV;
  • Females: RaVL+SV3>2.0 mV

Cornell product

  • Males: (SV3+RaVL)xQRS duration 2440 ms or more
  • Females: (SV3+(RaVL+8 mV))xQRS duration>2440 ms

Gubner criteria

  • RI+SII 25 mV or more

Romhilt-Estes score greater than 4 or 5 points:

  • Evidence of excessive voltage (any one of the following) - 3 points
    • largest R or S wave in limb leads 20 mV or more
    • S wave in V1
    • V2 30 mV or more
    • R wave in V5
    • V6 30 mV or more
  • Evidence of LV strain - 3 points (only 1 point if taking digitalis)
    • ST-T segment vector shifted opposite to QRS vector
  • Evidence of left atrial involvement - 3 points
    • terminal negativity of P wave in V1 1 mm or more with duration 0.04 s or more
  • Evidence of left axis deviation - 2 points
    • left axis –30° or less
  • Prolonged QRS duration - 1 point (0.09 s)
  • Intrinsicoid deflection - 1 point
    • intrinsicoid deflection (interval between start of QRS complex and peak of the R wave) in V5 or V6 0.05 s or more

Sensitivity and specificity

A systematic review found that the accuracy of the electrocardiographic indices and criteria for diagnosing left ventricular hypertrophy is:[2]

Treatment

Adrenergic beta-antagonists may be less effective according to meta-analyses[3][4] of randomized controlled trials such as LIFE[5] and others[6].

See also

References

  1. ↑ Molloy TJ, Okin PM, Devereux RB, Kligfield P (1992). "Electrocardiographic detection of left ventricular hypertrophy by the simple QRS voltage-duration product". J. Am. Coll. Cardiol. 20 (5): 1180–6. PMID 1401620. [e]
  2. ↑ 2.0 2.1 Pewsner D, Jüni P, Egger M, Battaglia M, Sundström J, Bachmann LM (2007). "Accuracy of electrocardiography in diagnosis of left ventricular hypertrophy in arterial hypertension: systematic review". BMJ 335 (7622): 711. DOI:10.1136/bmj.39276.636354.AE. PMID 17726091. Research Blogging.
  3. ↑ Fagard RH, Celis H, Thijs L, Wouters S (2009). "Regression of left ventricular mass by antihypertensive treatment: a meta-analysis of randomized comparative studies.". Hypertension 54 (5): 1084-91. DOI:10.1161/HYPERTENSIONAHA.109.136655. PMID 19770405. Research Blogging.
  4. ↑ Klingbeil AU, Schneider M, Martus P, Messerli FH, Schmieder RE (2003). "A meta-analysis of the effects of treatment on left ventricular mass in essential hypertension.". Am J Med 115 (1): 41-6. PMID 12867233. [e]
  5. ↑ Devereux RB, Dahlöf B, Kjeldsen SE, Julius S, Aurup P, Beevers G et al. (2003). "Effects of losartan or atenolol in hypertensive patients without clinically evident vascular disease: a substudy of the LIFE randomized trial.". Ann Intern Med 139 (3): 169-77. PMID 12899584. [e]
  6. ↑ Schulman SP, Weiss JL, Becker LC, Gottlieb SO, Woodruff KM, Weisfeldt ML et al. (1990). "The effects of antihypertensive therapy on left ventricular mass in elderly patients.". N Engl J Med 322 (19): 1350-6. DOI:10.1056/NEJM199005103221904. PMID 2139175. Research Blogging.
Retrieved from "https://citizendium.org/wiki/index.php?title=Left_ventricular_hypertrophy&oldid=978621"