DVT complete diagnostic approach resident survival guide: Difference between revisions

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'''Positive Blood Culture for Infective Endocarditis'''<BR>
* Typical microorganism consistent with infective endocarditis from 2 separate blood cultures, in the absence of a primary focus:<BR>


:❑ [[Viridans streptococci]], [[streptococcus bovis]]<BR>
<table class="wikitable">
:❑ [[HACEK organism|HACEK group]]<BR>
<tr class="v-firstrow"><th>Probability of infective endocaritis</th><th> Characteristics </th></tr>
:❑ Community-acquired [[staphylococcus aureus]]
<tr><td>Definite diagnosis by pathological criteria</td><td>Microorganisms demonstrated by culture or histological examination of a vegetation, OR <br>
:❑[[Enterococci]]<br>
Pathological lesions; vegetation or intracardiac abscess confirmed by histological examination showing active endocarditis </td></tr>
<br>
<tr><td>Definite diagnosis by clinical criteria</td><td>2 major criteria; OR <br>
OR
1 major criterion and 3 minor criteria; OR <br>
<br>
5 minor criteria </td></tr>
* Microorganisms consistent with infective endocarditis from persistently positive blood cultures defined as:<BR>
<tr><td>Possible</td><td>1 major criterion and 1 minor criterion; OR <br>3 minor criteria</td></tr>
<tr><td>Rejected</td><td>Firm alternative diagnosis explaining evidence of IE, OR <br>
Resolution of IE syndrome with antibiotic therapy for 4 days, OR <br>
No pathological evidence of IE at surgery or autopsy, with antibiotic therapy for 4 days, OR <br>
Does not meet criteria for possible IE as above</td></tr>
</table>


:❑ At least 2 positive cultures of blood samples drawn >12 hours apart, or<BR>
:❑ All of 3 or a majority of 4 separate cultures of blood (with first and last sample drawn 1 hour apart)<BR>


* Single positive blood culture for Coxiella burnetii or anti–phase 1 IgG antibody titer >1:800


'''Echocardiographic evidence of endocardial involvement'''<BR>
:❑ Oscillating intracardiac mass on valve or supporting structures, in the path of regurgitant jets, or on implanted material in the absence of an alternative anatomic explanation, or
:❑ Abscess, or<BR>
:❑ New partial dehiscence of prosthetic valve, or<BR>
:❑ New valvular regurgitation


Minor criteria:


*'''Predisposition:'''
{|class="wikitable"
:❑ Predisposing heart condition or intravenous drug use<BR>
! Criteria!! Definite Infective Endocarditis According to Modified Duke Criteria
*'''Fever:'''
|-
:❑ Temperature > 38.0° C (100.4° F)<BR>
| '''Pathological Criteria'''||
*'''Vascular phenomena:'''
:Microorganisms demonstrated by culture or histological examination of a vegetation
:❑ [[Embolism|Major arterial emboli]]
:Pathological lesions; vegetation or intracardiac abscess confirmed by histological examination showing active endocarditis
:❑ Septic pulmonary infarcts
|-
:❑ [[Mycotic aneurysm]]
| '''Clinical Criteria''' ||
:❑ [[Intracranial hemorrhage]]
:2 major criteria; or
:❑ [[Conjunctival hemorrhage]]
:1 major criterion and 3 minor criteria; or  
:❑ [[Janeway lesions]]<BR>
:5 minor criteria
*'''Immunologic phenomena:'''
:❑ [[Glomerulonephritis]]
:❑ [[Osler's nodes]]
:❑ [[Roth spot]]s
:❑ [[Rheumatoid factor]]<BR>
*'''Microbiological evidence:'''
:❑ Positive blood culture but does not meet a major criterion as noted above, or
:❑ Serological evidence of active infection with organism consistent with infectious endocarditis<BR>
 
 
{| style="cellpadding=0; cellspacing= 0; width: 600px;"
|-
|-
| style="padding: 0 5px; font-size: 100%; background: #F5F5F5;" align=center | '''Major criteria'''||style="padding: 0 5px; font-size: 100%; background: #F5F5F5;" align=center | '''Minor criteria'''
| '''Possible IE''' ||
:1 major criterion and 1 minor criterion; or
:3 minor criteria
|-
|-
| style="font-size: 90%; padding: 0 5px; background: #DCDCDC" align=left |'''''1- Positive Blood Culture for Infective Endocarditis'''''<br>
| '''Rejected''' ||
❑ Typical microorganism consistent with infective endocarditis from 2 separate blood cultures, in the absence of a primary focus:<BR>
:Firm alternative diagnosis explaining evidence of IE; or  
:❑ [[Viridans streptococci]], [[streptococcus bovis]]<BR>
:Resolution of IE syndrome with antibiotic therapy for 4 days; or  
:❑ [[HACEK organism|HACEK group]]<BR>
:No pathological evidence of IE at surgery or autopsy, with antibiotic therapy for 4 days; or  
:❑ Community-acquired [[staphylococcus aureus]]
:Does not meet criteria for possible IE as above
:❑[[Enterococci]] <br>
<br>OR<br><br>
❑ Microorganisms consistent with infective endocarditis from persistently positive blood cultures defined as:<BR>
:❑ At least 2 positive cultures of blood samples drawn >12 hours apart, or<BR>
:❑ All of 3 or a majority of 4 separate cultures of blood (with first and last sample drawn 1 hour apart)<br>
<br>OR<br><br>
❑ Single positive blood culture for Coxiella burnetii or anti–phase 1 IgG antibody titer >1:800|| style="font-size: 90%; padding: 0 5px; background: #DCDCDC" align=left <br>
<br>
-----
'''''2-Echocardiographic evidence of endocardial involvement''''' <br>
❑ Oscillating intracardiac mass on valve or supporting structures, in the path of regurgitant jets, or on implanted material in the absence of an alternative anatomic explanation, or
❑ Abscess, or<BR>
❑ New partial dehiscence of prosthetic valve, or<BR>
❑ New valvular regurgitation
| style="font-size: 90%; padding: 0 5px; background: #DCDCDC" align=left | '''''1- Predisposition'''''<br>
❑ Predisposing heart condition or intravenous drug use<BR>
<br>
----
'''2- Fever'''<br>
❑ Temperature > 38.0° C (100.4° F)<BR>
<br>
----
'''''3- Vascular phenomena'''''<br>
❑ [[Embolism|Major arterial emboli]] <br>
❑ Septic pulmonary infarcts <br>
❑ [[Mycotic aneurysm]] <br>
❑ [[Intracranial hemorrhage]] <br>
❑ [[Conjunctival hemorrhage]] <br>
❑ [[Janeway lesions]]<BR>
<br>
----
'''''4- Immunologic phenomena''''' <br>
❑ [[Glomerulonephritis]] <br>
❑ [[Osler's nodes]] <br>
❑ [[Roth spot]]s <br>
❑ [[Rheumatoid factor]]<BR>
<br>
----
'''''5- Microbiological evidence''''' <br>
❑ Positive blood culture but does not meet a major criterion as noted above<br>
<br>OR<br><br>
❑ Serological evidence of active infection with organism consistent with infectious endocarditis<BR>
|-
|-
|}
|}

Revision as of 04:39, 5 March 2014

Probability of infective endocaritis Characteristics
Definite diagnosis by pathological criteriaMicroorganisms demonstrated by culture or histological examination of a vegetation, OR
Pathological lesions; vegetation or intracardiac abscess confirmed by histological examination showing active endocarditis
Definite diagnosis by clinical criteria2 major criteria; OR

1 major criterion and 3 minor criteria; OR

5 minor criteria
Possible1 major criterion and 1 minor criterion; OR
3 minor criteria
RejectedFirm alternative diagnosis explaining evidence of IE, OR

Resolution of IE syndrome with antibiotic therapy for 4 days, OR
No pathological evidence of IE at surgery or autopsy, with antibiotic therapy for 4 days, OR

Does not meet criteria for possible IE as above



Criteria Definite Infective Endocarditis According to Modified Duke Criteria
Pathological Criteria
Microorganisms demonstrated by culture or histological examination of a vegetation
Pathological lesions; vegetation or intracardiac abscess confirmed by histological examination showing active endocarditis
Clinical Criteria
2 major criteria; or
1 major criterion and 3 minor criteria; or
5 minor criteria
Possible IE
1 major criterion and 1 minor criterion; or
3 minor criteria
Rejected
Firm alternative diagnosis explaining evidence of IE; or
Resolution of IE syndrome with antibiotic therapy for 4 days; or
No pathological evidence of IE at surgery or autopsy, with antibiotic therapy for 4 days; or
Does not meet criteria for possible IE as above