PAR Flashcards

1
Q

Vrai ou faux. En évaluation préopératoire du risque CV chez un patient PAR, on doit les considérer comme à risque égal à la population générale.

A

Faux –> haut risque cv.

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2
Q

Quelles sont les manifestations hématologiques possible (3)?

A
  1. Sd de Felty (neutropénie, splénomégalie, arthrite érosive) –> augmente risque de vasculite, lymphome, infection bactérienne et ulcère des MIs.
  2. Leucémie à grands lymphocytes granuleux
  3. Lymphome (surtout à c. B)
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3
Q

V ou F. Selon les critères dx de l’EULAR 2010, l’atteinte de 1-3 petites articulations vaut plus de points que l’atteinte de 2-10 grosses articulations.

A

Vrai.
1 large joint (shoulders, elbows, hips, knees, ankles): 0
2-10 large joints :1
1-3 small joints (MCPs, PIPs, wrists, 2-5 MTPs) :2
4-10 small joints: 3
More than 10 small joints :5

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4
Q

V ou F. All patients with RA should receive a disease-modifying antirheumatic drug initially and be advanced to more aggressive and/or combination therapy as needed to control disease.

A

Vrai.

Voir algorithme traitement dans MKSAP

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5
Q

Quelle molécule est le traitement de base en PAR ?

A

MTX. Il est utilisé en monothérapie ou en combinaison.
It can be titrated to doses as high as 25 mg/week in partial responders; the treating physician should generally maximize MTX dosing before adding other agents. At doses > 15 mg weekly, MTX oral absorption approaches its effective limit; switching to SC administration allows for higher serum drug levels. Of patients with RA taking MTX alone, 30% to 50% achieve remission or low disease activity

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6
Q

Quels autres agents peuvent être utilisés en monothérapie en PAR ?

A

Leflunomide, HCQ, Sulfasalazine.
Leflunomide may be useful in those who cannot tolerate methotrexate. Hydroxychloroquine is the least potent agent but can be used in very early disease when the disease activity score is low. It is also used as part of triple therapy (methotrexate, sulfasalazine, and hydroxychloroquine). Data suggest that triple therapy is comparable to methotrexate combined with a tumor necrosis factor α inhibitor, except in the area of radiographic progression.

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7
Q

V ou F. Les agents biologiques TNFa inhibiteurs agissent en synergie avec le MTX (et sont donc souvent combinés à celui-ci si l’activité de la maladie demeure modéré à sévère), mais peuvent aussi être utilisés en monothérapie en PAR.

A

Vrai.
The combination of MTX and a TNF-α inhibitor has also been shown to have a “disconnect effect,” meaning that even patients with continued clinical disease activity may demonstrate little to no damage to cartilage and bone.
This effect also has been shown with rituximab or tocilizumab in combination with MTX. Other biologic DMARDs used in RA include abatacept (a selective T-cell costimulation modulator) and tofacitinib (a small-molecule Janus kinase inhibitor).

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8
Q

V ou F. La prednisone à faible dose (5-10 mg/jour) peut être utilisée pour améliorer rapidement les sx de PAR en attendant les effets à long terme de la médication (court terme). Elle peut aussi être utilisée pour les flair up. Elle aurait un certain effet sur la modification de l’activité de la maladie.

A

Vrai.
A recent study tested 10 mg/d of prednisone vs placebo for 2 years in combination with MTX; the prednisone group had no more side effects than the placebo group but gained better control of disease activity, used less MTX, needed fewer additional medications, and had less radiographic damage.

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