Reactive Arthritis: Causes, Features and Treatments

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Reactive arthritis

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64.58

Reactive Arthritis

Ramesh M Bhat M and Rochelle C Monteiro

Introduction

Reactive arthritis (ReA) is defined as an episode of peripheral arthritis of more than one 1-month duration occurring in association with conjunctivitis and urethritis and/or cervicitis. It is triggered by an infection, most often in the gastrointestinal or urogenital tract. It is also known as Reiter’s syndrome, Feissinger Leroy’s disease, Brodie’s syndrome and conjunctivo-urethro-synovial syndrome. The term ReA Reactive arthritis was originally introduced to define a sterile joint inflammation during and after an infection elsewhere in the body. The definition was later modified since nucleic acids and bacterial antigens were found in the inflamed joints.²

Etiology Aetiology

Reactive arthritis (ReA) follows an infection in the urogenital tract (venereal form) or gastrointestinal tract (dysenteric form). The venereal form follows recent sexual contact, whereas the dysentricdysenteric form is associated with a wide variety of intestinal pathogens and non-specific diarrhoeal illnesses. The most common organisms implicated are as follows:

 

  1. Post Post-dysenteric form: Salmonella (different serotypes), Yersinia tuberculosis, Shigella flexneri, Shigella S. sonnei, and Campylobacter jejuni. These organisms are found to be HLA HLAB27 dependent. Hence, Individuals individuals with HLA-B27 positivity are strongly predisposed to develop the disease.
  2. Post Post-venereal form: Chlamydia trachomatis.

Some newer organisms have been implicated recently in causation of reactive arthritisReA, namely Chlamydia C. pneumonia, Mycoplasma hominis, Mycoplasma M. fermentans, Neisseria Gonorrhoeagonorrhoeae, Borrelia burgdorferi, Clostridium difficile, β-haemolytic streptococci, Propionibacterium acnes, EscherischiaEscherichia coli, Helicobacter pylori, Calmette CalmetteGuerin bacillus, Brucella abortus, Leptospira , Bartonella, Tropheyreyma whippeli, Gardnerella vaginalis, Giardia lamblia.³

Drugs are generally not implicated in the aetiology of reactive arthritisReA;, however, a single case of Lithium lithium precipitating pre-existing ReA1: Kindly check for clarity>aOKctive arthritis has been described.⁴

Pathobiology

The prevalence of ReAactive arthritis is estimated to be 0.1% worldwide. The disease mainly affects people in the 2nd– 4thsecond to fourth decade of life. The Infection infection occurs 14 weeks following genitourinary infection, with a malefemale ratio of 9:1. The Enteric enteric type has an equal incidence in both males and females.⁶

Systemic Featuresfeatures

The disease primarily affects the joints, eyes⁷, the skin and genitalia. Rarely, patients present with cardiac, renal, and neural abnormalities.

Arthritis

Articular manifestations are most commonly of an acute, non-destructive oligoarthritis usually affecting the large joints of the lower limbs which persists for 45 months. ‘Sausage digit’ or diffuse swelling of an entire toe/finger occurs in 16% of patients. Enthesitis is another characteristic feature of patients with ReA. It is defined as an inflammation of the ligaments and tendons at their site of insertion into the bone. Patients may also develop heel pain and achilles Achilles tendonitis. Sacroiliitis is another distinctive feature of the disease which results in a low back pain.8-10

Urethritis

ReAactive arthritis usually follows 13 weeks after an episode of urethritis. Urethritis may occur even in post postdysenteric cases. The non nonspecific urethritis presents with mild non-purulent urethral discharge. Haemorrhagic cystitis and prostatitis may develop in a few patients. In females, it manifests as cervicitis associated with cervical discharge. Rarely, bleeding and abdominal pain may occur.⁵

Mucocutaneous lesions

Keratoderma blennorrhagica or Pustulosis pustulosis palmoplantaris is a specific cutaneous lesion in ReA. Patients present with pustules over the palms and soles which are gradually covered with thick horny crusts. Lesions may coalesce. Psoriasiform lesions are also common (Fig. 58.1). The biopsy of of skin lesions with acanthosis and epidermal neutrophilia (Fig. 58.2) Circinate balanitis is a painless geographic dermatitis occurring over the glans penis (Fig. 58.31). In addition, small, shallow ulcers are seen over the glans and urethral meatus and also over the oral cavity. Nail changes are a common finding and include subungual hyperkeratosis, onycholysis, ridging and nail shedding.10,11

 

Visceral lesions

Visceral involvements mainly include the cardiac, renal and neural systems. Cardiovascular manifestations present as conduction delays and aortic disease. Proteinuria, microhaematuria, aseptic pyuria, and rarely, glomerulonephritis occur when the renal system is involved. Transient neurologic dysfunction such as cranial or peripheral nerve palsies have been described in some patients.10

The disease is usually self selflimiting. The joint manifestations regress completely within a few months (35 months). Enthesopathy, balanitis and psoriatic lesions may persist even after joint inflammation has subsided. Recurrences are common. Some patients develop chronic polyarthritis, usually HLA HLAB27 positive individuals.12

Ocular Featuresfeatures

Bilateral mucopurulent conjunctivitis is the most common ocular manifestation of ReA that occurs in more than 50% of patients. It is one of the important components of the triad of the disease. Occasionally, the conjunctivitis may be purulent but remains transient, mild and associated with a sterile discharge. It subsides within 14 weeks. Acute anterior uveititsuveitis may be found in about one-fifth of cases, especially in those who are positive for HLA-B27.7 Other ocular complications of ReA include keratitis, corneal ulcer with or without hypopyon, episcleritis, scleritis, papilloedema, retinal oedema, retinal vasculitis and retrobulbar neuritis.¹³

Vision is usually impaired from corneal scar or recurrent chronic uveitis causing secondary glaucoma, complicated cataract or cystoids macular oedema.¹â´

Diagnosis

Laboratory findings in ReA are non-specific and do not usually provide a conclusive diagnosis regarding the aetiology.

Prognosis

Individuals who are HLA HLAB27 positive have a more severe disease form. Male gender and a positive family history for spondyloarthropathies, ankylosing spondylitis and recurrent episodes of arthritis are indicators of a bad prognosis.9

Treatment

Patient education has plays a major role in patients with ReAactive arthritis. The chronic relapsing nature of the disease should be explained to the patients for better compliance with therapeutic modalities.

Conjunctivitis is usually self-limiting. A slit slitlamp examination is necessary to rule out uveitis, which if present has to be managed with topical corticosteroids, cycloplaegics and mydriatics. Keratoderma blenorrhagicablennorrhagica is treated using topical steroids and keratolytics. Low potency topical steroids are used in circinate balanitis.10

Non Nonsteroidal anti antiinflammatory drugs (NSAIDs) are highly effective in pain management in patients with ReAactive arthritis. Intra Intraarticular steroids are advocated in oligo/monoarticular disease. The use of systemic steroids has been discouraged except in severe cases where short courses may be given.15

Antibiotics are useful in the post postvenereal form of ReAactive arthritis. Their role in the post postdysenteric form remains controversial. Commonly used antibiotics include erythromycin, ciprofloxacin, tetracycline and doxycycline.11

In patients who fail to respond to the above mentioned conventional therapy, a more aggressive therapeutic approach is needed. This includes Disease disease modifying anti antirheumatic drugs (DMARD’s).

References

1. Fisk PK. Reiter’s disease. British Med J 1982; 284:3.

132. Kingsley G, Sieper J. Third international International workshop Workshop on Reactive arthritis Arthritis, 23-26 September, 1995, Berlin : An overview. Ann Rheum Dis 55:564570.

143. Kiss S, LetkoE, Qamruddin S, et al, Long-term progression, prognosis and treatment of patients with recurrent ocular manifestations of Reiter’s syndrome. Ophthalmology 2003;110::17641769.

154. Schumacher HR Jr., Reactive arthritis. Rheum Dis Clin North Am 1998; 24:261-273.

 

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