Difference between revisions of "Heart"

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===Right ventricle===
===Right ventricle===
*Make cut throught the apex (transverse/biventicular section).
*Make cut through the apex (transverse/biventicular section).
*Open along lateral edge (from RA cut).
*Open along lateral edge (from RA cut).


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==Standard sections==
==Standard sections==
Minimalist approach (Cybulsky):
Minimalist approach (Dr. C.):
#LV and PPM (left ventricle and posterior papillary muscle).
#LV and PPM (left ventricle and posterior papillary muscle).
#LV and APM (left ventricle and anterior papillary muscle).
#LV and APM (left ventricle and anterior papillary muscle).
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#RV.
#RV.


Make the lab work hard approach (Butany):
Make the lab work hard approach (Dr. B.):
#PRV (post. RV) with tricuspid valve.
#PRV (post. RV) with tricuspid valve.
#ARV (ant. RV) with pulm. valve.
#ARV (ant. RV) with pulm. valve.
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*[[Myocardial infarction]] (MI).
*[[Myocardial infarction]] (MI).
**Classically occurs at 2-3 days following a MI.<ref name=Ref_PCPBoD8_293>{{Ref PCPBoD8|293}}</ref>
**Classically occurs at 2-3 days following a MI.<ref name=Ref_PCPBoD8_293>{{Ref PCPBoD8|293}}</ref>
Note:
*Roberts suggests that ''pericardial heart disease'' may be a better term for this, as this isn't really an inflammatory process.<ref name=pmid16200146>{{Cite journal  | last1 = Roberts | first1 = WC. | title = Pericardial heart disease: its morphologic features and its causes. | journal = Proc (Bayl Univ Med Cent) | volume = 18 | issue = 1 | pages = 38-55 | month = Jan | year = 2005 | doi =  | PMID = 16200146 }}</ref>


===Gross===
===Gross===
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*Fibrin - pink amorphous material.
*Fibrin - pink amorphous material.


Note:
*Inflammation is not a strict requirement for the diagnosis.<ref name=pmid16200146>{{Cite journal  | last1 = Roberts | first1 = WC. | title = Pericardial heart disease: its morphologic features and its causes. | journal = Proc (Bayl Univ Med Cent) | volume = 18 | issue = 1 | pages = 38-55 | month = Jan | year = 2005 | doi =  | PMID = 16200146 }}</ref>
Images:
Images:
*[http://autopsy.stanford.edu/images/FibrinousPericarditis.jpg Fibrinous pericarditis (stanford.edu)].<ref>URL: [http://autopsy.stanford.edu/fellowships.html http://autopsy.stanford.edu/fellowships.html]. Accessed on: 21 January 2012.</ref>
*[http://autopsy.stanford.edu/images/FibrinousPericarditis.jpg Fibrinous pericarditis (stanford.edu)].<ref>URL: [http://autopsy.stanford.edu/fellowships.html http://autopsy.stanford.edu/fellowships.html]. Accessed on: 21 January 2012.</ref>
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Image:Pericarditis_fibrinosa.jpg | Fibrinous pericarditis. (WC)
Image:Pericarditis_fibrinosa.jpg | Fibrinous pericarditis. (WC)
</gallery>
</gallery>
===Sign out===
<pre>
Pericardium, Excision:
- Fibrinous pericardial heart disease.
</pre>


==Myocardial infarction==
==Myocardial infarction==
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<math>percent\ stenosis = ( 1 - ( minimal\ diameter ) / ( poststenotic\ diameter ) ) x 100%.</math>
<math>percent\ stenosis = ( 1 - ( minimal\ diameter ) / ( poststenotic\ diameter ) ) x 100%.</math>


With a bit of allegbra one can show:<br>
With a bit of algebra one can show:<br>
<math>A_x=x^2 A_o</math><br>
<math>A_x=x^2 A_o</math><br>
Where:
Where:
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===Congenital heart disease===
===Congenital heart disease===
{{main|Congenital heart disease}}
{{main|Congenital heart disease}}
Congential heart disease... a domain of paediatric cardiac surgery and occasionally adult cardiac surgery.
Congenital heart disease... a domain of pediatric cardiac surgery and occasionally adult cardiac surgery.


The article covers shunts, both left-to-right and right-to-left.
The article covers shunts, both left-to-right and right-to-left.
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{{main|Sarcoidosis}}
{{main|Sarcoidosis}}
===General===
===General===
*Can be in insolation or part of systemic sarcoidosis.<ref name=pmid9608713>{{cite journal |author=Veinot JP, Johnston B |title=Cardiac sarcoidosis--an occult cause of sudden death: a case report and literature review |journal=J. Forensic Sci. |volume=43 |issue=3 |pages=715–7 |year=1998 |month=May |pmid=9608713 |doi= |url=}}</ref>
*Can be in isolation or part of systemic sarcoidosis.<ref name=pmid9608713>{{cite journal |author=Veinot JP, Johnston B |title=Cardiac sarcoidosis--an occult cause of sudden death: a case report and literature review |journal=J. Forensic Sci. |volume=43 |issue=3 |pages=715–7 |year=1998 |month=May |pmid=9608713 |doi= |url=}}</ref>
*May mimic hypertrophic [[cardiomyopathy]] clinically.<ref name=pmid10981852>{{cite journal |author=Matsumori A, Hara M, Nagai S, ''et al.'' |title=Hypertrophic cardiomyopathy as a manifestation of cardiac sarcoidosis |journal=Jpn. Circ. J. |volume=64 |issue=9 |pages=679–83 |year=2000 |month=September |pmid=10981852 |doi= |url=}}</ref>
*May mimic hypertrophic [[cardiomyopathy]] clinically.<ref name=pmid10981852>{{cite journal |author=Matsumori A, Hara M, Nagai S, ''et al.'' |title=Hypertrophic cardiomyopathy as a manifestation of cardiac sarcoidosis |journal=Jpn. Circ. J. |volume=64 |issue=9 |pages=679–83 |year=2000 |month=September |pmid=10981852 |doi= |url=}}</ref>
*Clinical: associated with heart block.<ref name=pmid9608713/>
*Clinical: associated with heart block.<ref name=pmid9608713/>
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Notes:
Notes:
*Myocyte necrosis and eosinophils are features of ''granulomatous myocarditis''.<ref name=pmid19660614/>
*Myocyte necrosis and [[eosinophil]]s are features of ''granulomatous myocarditis''.<ref name=pmid19660614/>


==Myocarditis==
==Myocarditis==
===General===
{{Main|Myocarditis}}
*Uncommon.
 
===Gross===
*Not apparent on gross.
 
Grossing:
*Requires 10 sections to exclude;<ref>KC. 1 October 2010.</ref> sections should include right ventricle and left ventricle.
**It is often missed with five.<ref name=pmid9559966>{{Cite journal  | last1 = Kubo | first1 = N. | last2 = Morimoto | first2 = S. | last3 = Hiramitsu | first3 = S. | last4 = Uemura | first4 = A. | last5 = Kimura | first5 = K. | last6 = Shimizu | first6 = K. | last7 = Hishida | first7 = H. | title = Feasibility of diagnosing chronic myocarditis by endomyocardial biopsy. | journal = Heart Vessels | volume = 12 | issue = 4 | pages = 167-70 | month =  | year = 1997 | doi =  | PMID = 9559966 }}</ref>
 
===Microscopic===
Features:
*Inflammation.
*Myocyte necrosis (disputed<ref name=pmid16449736>{{Cite journal  | last1 = Baughman | first1 = KL. | title = Diagnosis of myocarditis: death of Dallas criteria. | journal = Circulation | volume = 113 | issue = 4 | pages = 593-5 | month = Jan | year = 2006 | doi = 10.1161/CIRCULATIONAHA.105.589663 | PMID = 16449736 }}</ref>).
 
====Classification====
Classified by the inflammatory cells present:<ref name=emedicine1612533>[http://emedicine.medscape.com/article/1612533-overview http://emedicine.medscape.com/article/1612533-overview]</ref>
*Eosinophilic - ''hypersensitivity myocarditis'' - most common.
**May be assoc. with peripheral blood eosinophilia.<ref name=pmid20181108>{{cite journal |author=Amini R, Nielsen C |title=Eosinophilic myocarditis mimicking acute coronary syndrome secondary to idiopathic hypereosinophilic syndrome: a case report |journal=J Med Case Reports |volume=4 |issue= |pages=40 |year=2010 |pmid=20181108 |pmc=2830978 |doi=10.1186/1752-1947-4-40 |url=}}</ref>
*Lymphocytic - viral, autoimmune.
*Granulomatous - infectious, [[idiopathic granulomatous myocarditis|idiopathic]].
*Neutrophilic.
*Reperfusion (associated with myocardial infarction).
 
Images:
*[http://commons.wikimedia.org/wiki/File:Viral_myocarditis_%281%29.JPG Myocarditis (viral) - 1 (WC)].
*[http://commons.wikimedia.org/wiki/File:Viral_myocarditis_%282%29.JPG Myocarditis (viral) - 2 (WC)].
*[http://jmedicalcasereports.com/content/4/1/40/figure/F5 Eosinophilic myocarditis (jmedicalcasereports.com)].<ref name=pmid20181108>{{cite journal |author=Amini R, Nielsen C |title=Eosinophilic myocarditis mimicking acute coronary syndrome secondary to idiopathic hypereosinophilic syndrome: a case report |journal=J Med Case Reports |volume=4 |issue= |pages=40 |year=2010 |pmid=20181108 |pmc=2830978 |doi=10.1186/1752-1947-4-40 |url=}}</ref>


==Idiopathic granulomatous myocarditis==
==Idiopathic granulomatous myocarditis==
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