therapeutics Flashcards
sun protection advice
sun protection-behaviour, sunscreen, clothing, window filter
CAD
sun protection advice, topical CS/CI,
pred 2w, AZA(B),Cya(B),
MMF(C), AM(C), PUVA/NBUVB densisitation((B, risky!)\
PMLE/AP/SU/HV-
topical CS/CI, AH, PUVA/NBUVB desensitisation, AM, AZA, cyA
photodrug rxn
memo/drug cessation(crucial,no alt, limited time-ct) allergen avoidance(patch/photopatch)
Pemphigus
pred 0.75-2mg/kg/d
↑25%qw↓10/5/2.5/1mg(40/20/10/5mg) q w
PV-MMF/AZA/dapsone/(A); MTX/CPA(B);
PF- MMF/AZA(A); Dapsone/MTX/CPA(B);
Rx considerations immunobullous
severity: BSA,disease area index; mucosal involvement,comorbidities, CI
pemphigoid
(0.3-1mg/kg/d) doxy/nicotinamide(A)
BP-AZA/MMF(A); dapsone/MTX/CPA(B)
indications for +adjuvant
> 1mg/kg/d pred, freq flares on tapering/morbidity or CI to steroid)
EBA-
dapsone/colcichine/pred(C); IVIG/ritux(B)
DH
( dapsone/pred);
Cx: MMP
Mucosal- MMP- ocular, ENT, GE ( OGD/colono) strictures
Treatment failure defn
progression/failure epitheliasation >3w pred(1.5mg/kg/d+-adjuvant)
immunobullous Treatment failure Recalcitrant disease-options
IvIG(A)/plasmapharesis, rituximab(B+-infx Cx)
role of dsg1/3 activity q6-12m;baseline in PV/PF
Monitoring-dz activity?stop Rx
FDE Rx:·
culprit drug/Xreacting, topical CS/Erosive-PP,gbFDE, PO pred
Mgt principles for vasculitis
symptomatic, 1st line, recalcitrant, 3rd line, specific
extracutaenous- RAI
Triggers- drug, causative dz-infx;
Topicals/leg elevation/NSAID AH aspirin
SVV
- palpable purpura
- hemorrhagic blister,necrosis
1.Colchicine(B, RCT-no effect but relapse in responders with cessation)+/-dapsone(B)
penicilin(ASOT)
- Prednisolone
recalcitrant-Steroid sparing-AZA, MTX, CyA,
CPA,IvIg, plasmapharesis
ANCA+ vasculitis
comanage RAI/renal/pulm, induction of remission(3-6m)-pred+MTX, maintenance(>24m) pred+MTX/AZA+Bactrim+bactroban(nasal)
CTD-associated vasculitis Rx
SLE- AM(A)-60% ↓flares; MTX(B);
RA-pred/penicillamine, MTX/AZA/CyP
PAN-prognosis
10% cutaneous benign relapsing prognosis, surveillance q6m systemic involvement(rare, 0/79 @7,7/9 @4y; pANCA);
PAN-Rx
Hep B associated(sPAN; GE antiviral IFN);
Rx all grade (B)
1st: NSAID/pred/dapsone/colchicine + wound care/dressings/infx
2nd: AZA, MMF, MTX, CPA
3rd: HBOT, ritux, IVIg, inflix, iloprost/bosentan(vasodilator, prostacyclin)
LV- Mgt principles
1.exclude 2-CTD, hypercoagulable, malignancies-solid haematological;
- 1st:smoking cessation, pentoxyfylline, aspirin, pred
2nd: /AZA MMF(C)
admit: methylpred/IvIg/ritux/HBOT(B) - DIRECTED Rx-thrombotic dz: warfarin, LMW heparin, Tissue plasminogen activator
- APS- danazol, HCQ; homocysteinemia- folic acid B6/12 supplement
DGI Rx
Rx: im ceftriaxone 1g OD( until 48H after clinical improvement)+ doxy/azithro(CT)
purpura fulminans Rx
Rx: ICU-abx(immediate/directed/mitigate immunosuppresion) supportive/inotropic/ventilatory/fluid; debridement;
Rx: stop warfarin, start vitK/heparin/protein C concentrate
purpura fulminans Q?
Ask: HD instability+ sepsis+immunocompromise/neutropenic, Phx CTD/APS/infx, warfarin
purpura fulminans ddx
1.occlusion: a)ecthyma gangrenosum b)septic vasculitis/emboli- c)lucio’s
- acquired protein C dysfunction
a) DIVC-meningococcemia/strep/saureus/Hib
b) warfarin necrosis - catastrophic APLS
- Calciphylaxis
CCLE prognosis
counsel (Risk of progression to SLE -DLE/tumid lupus10%,SCLE 50%)
CCLE counselling includes
sun protection(A)/smoking cessation(B*) *Affect severity/QOL not AM efficacy; vit D levels controversial role
CCLE Rx
indications for systemic(evidence?)
Potent Topicals-CS/TCI(A)/ILK(C)
Systemic-widespread recalcitrant scarred disfigured
1st:Antimalarials(A);
2nd +Pred(C)(severe,2-4 w taper +AM);MTX(B,wenzel 2005 SCLE/Localised DLE not dissemin.)
3rd: MMF / AZA; dapsone/Acitretin(A);Thalidomide/IVig/clofazamine
DLE Scalp Rx, indications for systemic?
> 10% SSA/>8W Rx failure ILK→ AM(A), Isotretinoin(B↓TE)acitretin(A), MTX
DMS Mgt:
+myositis-RAI comanagement-1- 2mg/kg pred
1) cutaneous: photoPx,
1st: topical CS/TCI, AM(B),
2nd: acute disabling(all B) pred /MTX/AZA/MMF
2) Longitudinal Malignancy surveillance 6 mox 3 y
DMS and malignancy-local data
risk factors? onset?
(local 10 mo onset)
Phx malignancy, poor Rx response, unexplained dz flares ( *Ang 2000; ↑malignancy in myositis)
Mgt principles MORPHEA:
- localised/generalised,* vs systemic( refer RAI+ nifedipine, aspirin);
- active:
morphea/SSc
- 1st(B):Potent topical CS/ TCI/calcipotriol/ILK;
2.(B):*UVA1/PUVA/NBUVB
MTX(>6mo)+-Pred(taper 2-4 w)/pulse methylpred,pred(6m) MMF
Mgt PRS
PRS, filler( stable >1 y photographic)
SCLEREDEMA Mgt-
cause(self resolving/no treatment/hyerglycemia independent); disability;
PUVA/NBUVB/CS
scleromyxedema,prognosis, Rx
Challenging(C), chronic persistent,MM/systemic(poor)
IvIG** CS(PO/topi/ILK);
chemo-melphalan(hematological malignancy, sepsis)
high dose dexa; IFNA, Cya,
LM: prognosis, Rx
skin-limited, good prognosis, no Rx
LP prognosis, Mgt:
self limiting, 20% relapsing, no RCT 1.topical CS/CI/calciportriol, 2.pred, AM, Acitretin 4. CyA sulfasalazine
LPP Rx -topicals, systemic (indications)
> 10%SSA,Rx failure>3m; AM(B)/pred(C); CyA/MMF/acitretin(C)
oral LP mgt principles
- aim-symptoms/ulcers/malignancy monitoring(0.4-5% transformation),biopsy
2.educate:smoking/alcohol/diet; oral hygiene, remove dental amalgam(97% benefit vs 40% +PT-amalgam, Me) - Rx oral candida, chlorhex mouthwash(plaque)
triamcinolone,CI, topical CyA,
PO pred5-10d/AZA/AM
PRP prognosis
Prognosis: classic(1,3, 80% 1-3 y remission)
Mgt- PRP
- topical CS/calcineurin inhibitor
- 1st:MTX+-acitretin(B)
2nd: Cya(C), AZA(C)
3rd: photoRx,
(biologics) TNFa inhibitor(B)-etanercept, adalimumab infliximab, ustekinumab(C)( IL 12-23 inhibitor)
DRESS prognosis, Rx:
10% mortality, systemic involvement
supportive, pred(B), tapered 6-8w; other: pulse methylpred, CyA