Isolation of Chlamydia trachomatis or Ureaplasma urealyticum from the synovial fluid of patients with Reiter's syndrome

[Clinical implications of the genus Mycoplasma]

Dentro del género Mycoplasma, las especies que tradicionalmente se han relacionado con cuadros infecciosos han sido principalmente M. pneumoniae, M. genitalium, M. hominis o U. urealyticum. Sin embargo, existen otras muchas que están implicadas y, que muchas veces, son desconocidas para los profesionales sanitarios. El objetivo de esta revisión es identificar todas las especies del género Mycoplasma que se han aislado en el hombre y determinar su participación en la patología infecciosa humana.

A Case of Rectal Ureaplasma Infection and Implications for Testing in Young Men Who Have Sex with Men: The P18 Cohort Study

Ureaplasma is a significant cause of nongonococcal urethritis. This is a case of rectal Ureaplasma found on culture in a young man who has sex with men not previously reported in the literature. Nucleic acid amplification tests are now standard of care for sexually transmitted infection testing, but they do not test for Ureaplasma and, therefore, may be missing important infections. Ureaplasma could have important implications in urethritis and rectal HIV transmission among men who have sex with men engaging in condomless anal intercourse. Further study of Ureaplasma's role as a rectal pathogen may be warranted.

Incidence of Chlamydia trachomatis infection in patients with reactive arthritis

Objectives

The aim of the study was to evaluate the incidence of Chlamydia trachomatis in patients with reactive arthritis (ReA) within the area of the Podlaskie province (north eastern Poland).

Material and methods

The study concerned 323 patients including 132 women and 191 men diagnosed with ReA. The material for C. trachomatis was collected from the urethra in men and the cervical canal in women. Also, every patient was tested for the presence of anti-C. trachomatis IgG class antibodies, while 121 individuals were additionally tested for IgA class antibodies. In the direct studies, the direct immunofluorescence (DIF) method or polymerase chain reaction (PCR) was used. The immunoenzymatic method was used to detect anti-C. trachomatis antibodies. The control group in the case of direct studies comprised 125 individuals, while in the case of serology research it included 127 (IgG) and 109 (IgA) persons.

Results

Chlamydia trachomatis infection in the urethral and cervical smears was found in 42 patients (13.0%) including 20 women (15.2%) and 22 men (11.5%). In the control group chlamydia was detected in 3 patients (2.4%) including 4% of women and 2% of men. IgA class antibodies were present in 10/121 (8.3%) patients, similarly in women and in men (8.2% and 8.3% respectively). In the control group the specific IgA class antibodies were found in 3/85 patients (3.5%). Anti-C. trachomatis IgG antibodies were found in 70/323 patients (21.7%), similarly in men and women.

Conclusions

Chlamydia trachomatis is a common bacterial factor observed in the genitourinary system of patients with ReA. The outcomes of studies within the Podlaskie province indicate less frequent presence of chlamydial infection compared with Dolnośląskie province.

No correlations between detecting the presence of C. trachomatis in the urogenital tract and the presence of specific antibodies in the serum of ReA patients were observed.

Concurrent direct studies of the urogenital tract and a serological blood test increase the chance of detecting C. trachomatis infection.

Reiter's syndrome: the classic triad and more

Reiter's syndrome, also known as reactive arthritis, is the classic triad of conjunctivitis, urethritis, and arthritis occurring after an infection, particularly those in the urogenital or gastrointestinal tract. Dermatologic manifestations are common, including keratoderma blennorrhagicum, circinate balanitis, ulcerative vulvitis, nail changes, and oral lesions. Epidemiologically, the disease is more common in men, although cases have also been reported in children and women. The pathophysiology has yet to be elucidated, although infectious and immune factors are likely involved. Clinical presentation, severity, and prognosis vary widely. Treatment is difficult, especially in HIV-positive patients. Prognosis is variable; 15% to 20% of patients may develop severe chronic sequelae.

Successful Treatment of Postvenereal Reactive Arthritis With Synovectomy and 3 Months’ Azithromycin

BACKGROUND

The effects of antibiotic therapy on the course of postvenereal reactive arthritis have not yet been elucidated.

OBJECTIVE

The objective of this study was to observe the clinical course and outcome of synovectomy and 3 months of azithromycin therapy in patients with reactive arthritis and previously diagnosed triggering bacteria.

METHODS

We performed an open, prospective study on 20 (14 male/6 female) patients with postvenereal reactive knee arthritis, aged 36.7 +/- 14.8 years, and with 16.5 +/- 20.4 months' duration of the disease. Detection of bacteria triggers was done by polymerase chain reaction, isolation and identification, and electron microscopy. Synovectomy was performed in all patients at entry into the study. Azithromycin was given at a dose of 500 mg per day for 5 days, and then 500 mg twice a week, during a 3-month period. Patients without remission were treated with combined antibiotic therapy using a macrolide, quinolone, and tetracycline for the next 4 months. Outcome evaluations of therapeutic efficacy and azithromycin safety were done after 1 and 3 months and 2 years of follow up.

RESULTS

Remission, defined by the absence of joint swelling and tenderness, and extraarticular signs, was reached after 3 months in 15 of 20 (75.0%) patients (P = 0.025). Of 5 patients with persistent knee arthritis, remission was achieved with combined antibiotic therapy in 4. Visual analog scale scores (P < 0.01), the number of patients (P = 0.002), and the number of samples (P = 0.01) with a positive finding of bacteria or their DNA were significantly lower after 3 months of therapy. During the azithromycin therapy, there were no significant adverse effects.

CONCLUSIONS

These patients with reactive arthritis did extremely well on the regimen described. In our study group, the number of patients and the number of samples with positive findings of bacteria or their DNA were lower after the antibiotic treatment combined with surgery, although not all bacteria were eradicated. Adverse effects of prolonged azithromycin administration were insignificant. This open treatment approach is recommended but does need a study with controls.