Ventricular tachycardia laboratory findings: Difference between revisions

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==Laboratory Findings==
==Laboratory Findings==
Common laboratory findings predicting [[sudden cardiac arrest]] and [[ventricular tachycardia]] include:
Common laboratory findings predicting [[sudden cardiac arrest]] and [[ventricular tachycardia]] include:
* Elevated level of [[Natriuretic peptides—B-type]] (BNP) or  N-terminal pro-[[BNP]] as the marker of [[myocardial stress]] and [[fibrosis]] in [[heart failure]] disease
* Elevated level of [[Natriuretic peptides—B-type]] (BNP) or  N-terminal pro-[[BNP]] as the marker of [[myocardial stress]] and [[fibrosis]] in [[heart failure]] disease<ref name="AhmadFiuzat2014">{{cite journal|last1=Ahmad|first1=Tariq|last2=Fiuzat|first2=Mona|last3=Neely|first3=Benjamin|last4=Neely|first4=Megan L.|last5=Pencina|first5=Michael J.|last6=Kraus|first6=William E.|last7=Zannad|first7=Faiez|last8=Whellan|first8=David J.|last9=Donahue|first9=Mark P.|last10=Piña|first10=Ileana L.|last11=Adams|first11=Kirkwood F.|last12=Kitzman|first12=Dalane W.|last13=O'Connor|first13=Christopher M.|last14=Felker|first14=G. Michael|title=Biomarkers of Myocardial Stress and Fibrosis as Predictors of Mode of Death in Patients With Chronic Heart Failure|journal=JACC: Heart Failure|volume=2|issue=3|year=2014|pages=260–268|issn=22131779|doi=10.1016/j.jchf.2013.12.004}}</ref>
 
* Highly sensitive [[troponinT]] indicating [[cardiomyocyte]] injury<ref name="HusseinGottdiener2013">{{cite journal|last1=Hussein|first1=Ayman A.|last2=Gottdiener|first2=John S.|last3=Bartz|first3=Traci M.|last4=Sotoodehnia|first4=Nona|last5=deFilippi|first5=Christopher|last6=Dickfeld|first6=Timm|last7=Deo|first7=Rajat|last8=Siscovick|first8=David|last9=Stein|first9=Phyllis K.|last10=Lloyd-Jones|first10=Donald|title=Cardiomyocyte Injury Assessed by a Highly Sensitive Troponin Assay and Sudden Cardiac Death in the Community|journal=Journal of the American College of Cardiology|volume=62|issue=22|year=2013|pages=2112–2120|issn=07351097|doi=10.1016/j.jacc.2013.07.049}}</ref>
* Highly sensitive [[troponinT]] indicating [[cardiomyocyte]] injury<ref name="HusseinGottdiener2013">{{cite journal|last1=Hussein|first1=Ayman A.|last2=Gottdiener|first2=John S.|last3=Bartz|first3=Traci M.|last4=Sotoodehnia|first4=Nona|last5=deFilippi|first5=Christopher|last6=Dickfeld|first6=Timm|last7=Deo|first7=Rajat|last8=Siscovick|first8=David|last9=Stein|first9=Phyllis K.|last10=Lloyd-Jones|first10=Donald|title=Cardiomyocyte Injury Assessed by a Highly Sensitive Troponin Assay and Sudden Cardiac Death in the Community|journal=Journal of the American College of Cardiology|volume=62|issue=22|year=2013|pages=2112–2120|issn=07351097|doi=10.1016/j.jacc.2013.07.049}}</ref>


* Elevated levels of [[natriuretic peptides—B-type]] (BNP) or N-terminal pro-[[BNP]] are associated with increased risk of [[sudden cardiac death]] and [[ventricular tachycardia]], particularly in high risk [[ischemic heart disease]] and [[heart failure]] [[patients]].<ref name="AhmadFiuzat2014">{{cite journal|last1=Ahmad|first1=Tariq|last2=Fiuzat|first2=Mona|last3=Neely|first3=Benjamin|last4=Neely|first4=Megan L.|last5=Pencina|first5=Michael J.|last6=Kraus|first6=William E.|last7=Zannad|first7=Faiez|last8=Whellan|first8=David J.|last9=Donahue|first9=Mark P.|last10=Piña|first10=Ileana L.|last11=Adams|first11=Kirkwood F.|last12=Kitzman|first12=Dalane W.|last13=O'Connor|first13=Christopher M.|last14=Felker|first14=G. Michael|title=Biomarkers of Myocardial Stress and Fibrosis as Predictors of Mode of Death in Patients With Chronic Heart Failure|journal=JACC: Heart Failure|volume=2|issue=3|year=2014|pages=260–268|issn=22131779|doi=10.1016/j.jchf.2013.12.004}}</ref>
* Elevated levels of [[natriuretic peptides—B-type]] (BNP) or N-terminal pro-[[BNP]] are associated with increased risk of [[sudden cardiac death]] and [[ventricular tachycardia]], particularly in high risk [[ischemic heart disease]] and [[heart failure]] [[patients]].<ref name="AhmadFiuzat2014">{{cite journal|last1=Ahmad|first1=Tariq|last2=Fiuzat|first2=Mona|last3=Neely|first3=Benjamin|last4=Neely|first4=Megan L.|last5=Pencina|first5=Michael J.|last6=Kraus|first6=William E.|last7=Zannad|first7=Faiez|last8=Whellan|first8=David J.|last9=Donahue|first9=Mark P.|last10=Piña|first10=Ileana L.|last11=Adams|first11=Kirkwood F.|last12=Kitzman|first12=Dalane W.|last13=O'Connor|first13=Christopher M.|last14=Felker|first14=G. Michael|title=Biomarkers of Myocardial Stress and Fibrosis as Predictors of Mode of Death in Patients With Chronic Heart Failure|journal=JACC: Heart Failure|volume=2|issue=3|year=2014|pages=260–268|issn=22131779|doi=10.1016/j.jchf.2013.12.004}}</ref>

Revision as of 04:28, 17 May 2021

Ventricular tachycardia Microchapters

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Serial cardiac enzymes, serum electrolytes as well as calcium, magnesium and phosphate levels, should be obtained. A toxicology screen should also be obtained to assess for illicit drugs as the cause of the VT, as well as levels of medications that may have caused the VT.

Laboratory Findings

Common laboratory findings predicting sudden cardiac arrest and ventricular tachycardia include:


Laboratory Pearls for Ventricular Tachycardia
Electrolytes Hypokalemia and hypomagnesemia frequently associated with torsades de pointes
Troponin I Elevated in myocardial infarction
Creatine-kinase MB Elevated in myocardial infarction

References

  1. 1.0 1.1 Ahmad, Tariq; Fiuzat, Mona; Neely, Benjamin; Neely, Megan L.; Pencina, Michael J.; Kraus, William E.; Zannad, Faiez; Whellan, David J.; Donahue, Mark P.; Piña, Ileana L.; Adams, Kirkwood F.; Kitzman, Dalane W.; O'Connor, Christopher M.; Felker, G. Michael (2014). "Biomarkers of Myocardial Stress and Fibrosis as Predictors of Mode of Death in Patients With Chronic Heart Failure". JACC: Heart Failure. 2 (3): 260–268. doi:10.1016/j.jchf.2013.12.004. ISSN 2213-1779.
  2. Hussein, Ayman A.; Gottdiener, John S.; Bartz, Traci M.; Sotoodehnia, Nona; deFilippi, Christopher; Dickfeld, Timm; Deo, Rajat; Siscovick, David; Stein, Phyllis K.; Lloyd-Jones, Donald (2013). "Cardiomyocyte Injury Assessed by a Highly Sensitive Troponin Assay and Sudden Cardiac Death in the Community". Journal of the American College of Cardiology. 62 (22): 2112–2120. doi:10.1016/j.jacc.2013.07.049. ISSN 0735-1097.
  3. Tchou P, Young P, Mahmud R, Denker S, Jazayeri M, Akhtar M (January 1988). "Useful clinical criteria for the diagnosis of ventricular tachycardia". Am. J. Med. 84 (1): 53–6. doi:10.1016/0002-9343(88)90008-3. PMID 3337132.
  4. Lown B, Temte JV, Arter WJ (June 1973). "Cardiac arrhythmias. 6. Ventricular tachyarrhythmias. Clinical aspects". Circulation. 47 (6): 1364–81. doi:10.1161/01.cir.47.6.1364. PMID 4709549.