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Difference between revisions of "Cardiac arrhythmias"
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==Microscopic== | ==Microscopic== | ||
Features - associated with ventricular fibrillation:<ref name=pmid15837088>{{Cite journal | last1 = Baroldi | first1 = G. | last2 = Silver | first2 = MD. | last3 = Parolini | first3 = M. | last4 = Pomara | first4 = C. | last5 = Turillazzi | first5 = E. | last6 = Fineschi | first6 = V. | title = Myofiberbreak-up: a marker of ventricular fibrillation in sudden cardiac death. | journal = Int J Cardiol | volume = 100 | issue = 3 | pages = 435-41 | month = Apr | year = 2005 | doi = 10.1016/j.ijcard.2004.10.007 | PMID = 15837088 }}</ref> | Features - associated with ventricular fibrillation:<ref name=pmid15837088>{{Cite journal | last1 = Baroldi | first1 = G. | last2 = Silver | first2 = MD. | last3 = Parolini | first3 = M. | last4 = Pomara | first4 = C. | last5 = Turillazzi | first5 = E. | last6 = Fineschi | first6 = V. | title = Myofiberbreak-up: a marker of ventricular fibrillation in sudden cardiac death. | journal = Int J Cardiol | volume = 100 | issue = 3 | pages = 435-41 | month = Apr | year = 2005 | doi = 10.1016/j.ijcard.2004.10.007 | PMID = 15837088 }}</ref> | ||
*Myofiber break-up - '''key feature'''. | *Myofiber break-up (MFB) - '''key feature'''. | ||
**Fractures of the sarcomeres perpendicular to the long axis. | **Fractures of the sarcomeres perpendicular to the long axis. | ||
**Associated with square nuclei. | **Associated with square nuclei. | ||
Notes: | |||
*In cases on a cardiac monitor at the of death, with malignant arrhythmias, it is seen multiple sections.<ref name=pmid15837088/> | |||
*MFB seems to be predominantly mid-myocardial/epicardial, with relative sparing of the subendocardium.{{fact}} | |||
==References== | ==References== | ||