42 y/o M with Blurred vision for 1+ week
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Transcript of 42 y/o M with Blurred vision for 1+ week
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R4 陳怡杏May 12th, 2011
EBM Case discussion
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+ Eye hit by silicone last week os, blurred vision now, eye pain c movement for 1wk, than blurred vision+ (ou)
+ recent common cold-, but throat pain++ past history: denied DM, HTN, CAD+ personal history: denied alcohol, smoke, drug
abuse history+ 2+ year-foreign worker from Tailand
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+ 2011/05/02 PT OD:9mmHg OS:12mmHg + TVRM(sD) OD:+0.25/-0.75X83 OS:+4.0/-0.50X45 + VAcC(sD) OD:0.05(0.06X0/-0.75.X80) OS:CF>1M+ P: ortho+ pupil: isocoric, MG(-)+ EOM: f & f+ Conj: mild congestion, K: clear, AC : D/Cell+, Lens:
clear + color od 5/7 os 0/7
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356 612
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+ BP: 120/90mmhg+ arthritis (-), oral ulcer (-)+ Raised cat in Tailand (+), no cat scratch history
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Diagnosis?
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+ Cat scratch disease cat contact history?+ Syphillis VDRL, TPHA+ Harada’s disease+ Sarcoidosis ACE, CXR+ Toxoplasmosis Toxo IgG, IgM+ Idiopathic neuroretinitis+ Lyme disease+ Hypertensive retinopathy
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+ Normal heart size+ Tortuosity of
thoracic aorta + Infiltration at bil.
lower lungs
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+ First described by Leber in 1916+ characterized by (1) sudden onset of VA loss
(2) partial or complete macula star exudate (preceded by a peripapillary exudative neurosensory RD), and (3) optic nerve swelling with disc capillary leakage
+ Usually unilateral+ Cause: cat scratch disease 2/3
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+ Gass: FAG-retinal leakage (-) and optic nerve swelling preceded or occurred in conjunction with the formation of a macular star
+ Pathophysiology: optic neuropathy with prelaminar permeability of disc capillaries producing the apparent retinal thickening and secondary macular exudates
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+ Usually disc edema first+ Macular exudation often manifests within 2-4
wks after disease onset+ Often emerges as disc edema resolving (7 to 10
day from its initial appearance)+ May remain stable for several wks but gradually
resolve within 6 to 12 m/o+ Disc edema: begins to decrease in 2 weeks and
usually complete resolution in 8 to 12 wks
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+ In the same/fellow/both eyes+ Accumulative visual loss after each episode+ Incomplete recovery of visual function: due to
permanent damage to the optic nerve, not the macula
+ Pathogenesis: patients without systemic disease may have immune disorder involving disc vasculature
Ach Ophthalmol. 2003; 121: 65-67J Neuro-Ophthalmol 2005;25: 286–288
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+ 30 pt with recurrent NR, 7 pts had immunosuppresants (prednisone, azathioprine, or both)
+ Attack rate decreased 72% after initiation of immunosuppressive therapy (0.58-> 0.16 attacks/yr)
+ Other disease association: Toxoplasmosis, melanocytoma, sarcoidosis, multiple sclerosis
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+ Most common :lymphadenitis+ Atypical forms: Parinaud oculoglandular
syndrome, stellate neuroretinitis (10%), persistent fever without localizing signs, hepatosplenic infection, encephalopathy, osteomyelitis, and endocarditis
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+ First described by Parinaud in 1889
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+ seroprevalence of Bartonella in patients with HIV infection: 16% to 40%, but seropositivity does not correlate directly with evidence of clinical infection
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+ LN biopsy or conjunctiva biopsy+ Indirect fluorescent antibody (IFA) test: 88%
sensative, 94% specific+ Enzyme immunoassay (EIA) IgG sensitivity 86-
95%, specificity 96% compare to IFA+ PCR: amplify small fragment of bacterial 16S
rRNA gene of Bartonella DNA
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+ Efficacy: Rifampin (87%), Ciprofloxacin (84%), gentamicin (73%) trimethoprim and sulfamethoxazole (58%)
+ Penicillins, cephalosporins, tetracycline, and erythromycin had minimal or no clinical efficacy
+ Immocompetants: rapidly responsive to many antibacterial agents, including those not felt to be effective
+ Immunocompromised pts: gentamicin, macrolides, quinolones, and rifampin
Current Opinion in Pediatrics 2001, 13:56–59
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Cat-scratch disease has been confirmed as a cause of optic neuritis as well as neuroretinitis
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+ CC: progressive blurred vision od for 3 months
+ 2011/03/01 VA OD:0.1+1 OS:L-S(-), RAPD (os)3+
+ PH:+ optic neuritis (od) s/p steroid pulse therapy
1/20-1/23 2008 (2008/10/6 VA od 0.4)+ optic neuritis(os) s/p steroid pulse therapy at
NTUH with optic atrophy
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+ CT (-)+ CXR np+ LAB survey: WNL
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+ Pre-tx (2011/3)
+ Post- tx + 3 day pulse therapy+ +doxycycline+ (2011/4/28)
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#2001079941 y/o M, metamorphopsia (OD) since July 2010, grey color and then black
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2010/7
2010/9 Since 2010/11
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2010/11
2011/4
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2010/7 2011/4
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