psoriatic


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to psoriatic: psoriatic arthritis, psoriatic nails

pso·ri·at·ic

(sō'rē-at'ik),
Relating to psoriasis.

psoriatic

adjective Referring to psoriasis.

noun An older term for a person with psoriasis.

pso·ri·at·ic

(sōr'ē-at'ik)
Relating to psoriasis.
Synonym(s): psoriasic.

psoriasis

(sŏ-rī′ă-sĭs ) [Gr. psōriasis, itching]
Enlarge picture
PSORIASIS: silvery plaque on the shin
A chronic skin disorder affecting 1% to 2% of the population, in which red papules and scaly silvery plaques with sharply defined borders appear on the body surface. The rash commonly is found on the knees, shins, elbows, umbilicus, lower back, buttocks, ears, and along the hairline. Pitting of the nails also occurs frequently. Patients complain of itching and sometimes of pain from dry, cracked, or encrusted lesions. Removal of scales usually causes fine bleeding points. Widespread shedding of scales is common, and occasionally the disease becomes pustular. The severity of the disease may range from a minimal cosmetic problem to total body surface involvement. About a third of all affected patients have a family history of the disease. psoriatic (sōr″ē-at′ik), adjective See: illustration

Although psoriasis may begin at any time of life, the most common age of onset is between 10 and 40. Sudden onset may occur related to HIV. The condition has relapses and partial remissions, but established lesions often persist for many months or years. Flare-ups may be related to specific systemic and environmental factors or may be unpredictable. About 5% of patients also develop an inflammatory arthritis (commonly affecting fingers and toes or sacroiliac joints), and patients with psoriasis have an increased rate of inflammatory bowel disease.

Etiology

Although the cause of psoriasis is unknown, some evidence suggests that immune dysregulation contributes to excessive proliferation of skin. Families with psoriasis have been found to have a significantly higher-than-normal incidence of certain human leukocyte antigens. Genetic studies show that about one third of affected patients have a family history of the disease. Emotional stress, skin trauma, cold weather, infections, and some drugs may trigger attacks.

Treatment

The disease has no cure, and all treatments are palliative. Topical corticosteroids, coal tar derivatives, vitamin D3 analogs (e.g., calcipotriene), retinoids (e.g., etretinate, tacarotene), ultraviolet light exposure, and saltwater immersion are among the many methods that have been used effectively to treat this condition. For severe disease, immune-modulating drugs like methotrexate or cyclosporine sometimes are used, with close monitoring to prevent side effects.

CAUTION!

Many treatments for psoriasis carry some risk for the patient. Etretinate, for example, produces fetal abnormalities and should never be used by women of childbearing age. Phototherapy with ultraviolet light increases the risk of developing many types of skin cancer. Patients receiving PUVA therapy must wear goggles during treatments, stay out of the sun on treatment days, and protect their eyes with UVA-screening sunglasses for 24 hr after the therapy. Use of methotrexate use requires regular monitoring of liver function, renal function, complete blood counts, and lung function.

Patient care

The nurse teaches the patient about the prescribed therapy, to soften and remove scales, to relieve pruritus, to reduce pain and discomfort, to retard rapid cell proliferation, and to help induce remission and monitors for adverse reactions. Assistance is provided to help the patient gain confidence in managing these largely palliative treatments, many of which require special instructions for application and removal. The patient should protect against and minimize trauma. The patient's ability to manage therapies and their results are evaluated. The patient learns to identify stressors that exacerbate the condition, and to avoid and reduce these as much as possible. If the patient smokes cigarettes, participation in a smoking cessation program is recommended. The nurse helps the young patient (aged 20 to 30) to deal with body image changes and effects on self-esteem, encourages the patient to verbalize feelings, and supports the patient through loss of body image and associated grief. Psychological problems often occur. Referral for psychological counseling or cosmetic concealment therapy may be necessary. Patients and their families should be referred to the National Psoriasis Foundation and its local chapters for information and support. (800-723-9166; www.psoriasis.org)

psoriasis annularis

Circular or ringlike lesions of psoriasis.

psoriasis buccalis

Leukoplakia of the oral mucosa.

elephantine psoriasis

A rare but persistent psoriasis that occurs on the back, thighs, and hips in thick scaling plaques.
Enlarge picture
GUTTATE PSORIASIS: on the back

guttate psoriasis

Psoriasis characterized by small distinct lesions that generally occur over the body. The lesions appear particularly in the young after acute streptococcal infections. See: illustration

nummular psoriasis

The most common form of psoriasis with disks and plaques of varying sizes on the extremities and trunk. There may be a great number of lesions or a solitary lesion.

pustular psoriasis

Psoriasis in which small sterile pustules form, dry up, and then form a scab.

rupioid psoriasis

Psoriasis with hyperkeratotic lesions on the feet.

psoriasis universalis

Severe generalized psoriasis.
References in periodicals archive ?
Psoriatic arthritis therapy: NSAIDs and traditional DMARDs.
The platform unites psoriatic disease patients from around the country to contribute their own data about triggers, treatments, associated health conditions and lifestyle factors related to psoriasis and psoriatic arthritis.
Another useful clue: Psoriatic arthritis often affects the distal phalangeal joints of the fingers and toes, with accompanying characteristic psoriatic nail changes, but it spares the metacarpophalangeal (MCP) joints.
PAPAA wants to provide a positive approach for people affected by the skin disease psoriasis and psoriatic arthritis, which can have significant impact on an individual's quality of life and psychological wellbeing"
More recently, the PRESTA (Psoriasis Randomized Etanercept Study in Subjects with Psoriatic Arthritis) trial assessed 752 patients with highly active PsA and psoriasis [average body surface area (BSA) involvement with psoriasis, 31%] randomized to a standard dose of etanercept approved for PsA, 50 mg/wk (group 1), versus a dose approved for psoriasis, 50 mg twice a week for 12 weeks, followed by 50 mg/wk thereafter (group 2).
The results of this first phase III trial of apremilast are encouraging for both physicians and patients as a potentially effective and safe oral therapy for psoriatic arthritis patients," said Arthur F.
Everything we do at the National Psoriasis Foundation is to improve the health of people living with psoriatic disease," said Michael Siegel, Ph.
PRESTA also showed the ideal dosing regimen for psoriatic arthritis to be closer to that employed in rheumatoid arthritis than for that used in psoriasis, he added.
Data from the PRESTA study show that before starting Enbrel therapy, patients with both psoriasis and psoriatic arthritis had poor quality of life.
1) Because this criteria set has not been validated using patient data nor tested in different populations, a consortia of 31 experts conducted the Classification Criteria for the Study of Psoriatic Arthritis study (CASPAR), involving extensive investigation of 588 patients evaluated definitively to have PsA.
The study helps executives estimate Psoriatic Arthritis market potential, assess unmet need, develop drug forecasting models, and build population-based health management frameworks.
June 22, 2015 /PRNewswire-USNewswire/ -- Eleven early-career physicians each received a one-year, $50,000 National Psoriasis Foundation Medical Dermatology Fellowship to study psoriasis and psoriatic arthritis.