Dermatologic Manifestations of Nocardiosis Follow-up
- Author: Brent A Shook, MD; Chief Editor: Dirk M Elston, MD more...
Further Outpatient Care
- Close outpatient follow-up care is vital to the success of therapy for cutaneous nocardiosis. Because of the long duration of therapy, relapse is possible. Although the optimal duration of therapy is uncertain, suggestions range from 6 weeks (in minor infections) to 1 year (severe systemic disease).
- Frequent outpatient visits for the first 6 weeks are recommended, followed by less frequent visits if the patient does well clinically.
Inpatient & Outpatient Medications
- Antibiotic therapy and appropriate surgical drainage are treatments of choice (see Medication).
- If parenteral therapy is necessary, it need not be continued beyond a period of 3-6 weeks, even in patients with life-threatening systemic disease. With improving clinical status, most patients can be switched safely to oral medications, especially trimethoprim and sulfamethoxazole (TMP-SMZ).
- Outpatient antibiotics are much more easily administered in oral form, and oral antibiotics have been shown to be just as effective as intravenous forms in patients with cutaneous disease.
Complications
- Recurrence of disease is the most frequent complication. A full course of appropriate antibiotics is essential for preventing recurrence.
- At least 3 cases of dissemination of primary cutaneous nocardiosis have been reported. Despite the rarity of this occurrence, dissemination is associated with a much higher mortality rate.
- If a patient remains ill or febrile despite seemingly adequate therapy, treatment failure may be a result of a sequestered abscess that requires drainage. Often, localization and drainage subsequently result in efficacious results.
- Mycetoma, although rare in developed countries, is much more invasive and destructive than other forms of cutaneous nocardiosis. Because fascia, bone, and muscle are frequently involved in severe untreated mycetoma, wide debridement and amputation are known complications.
Prognosis
- With proper antibiotic selection and course of treatment, the prognosis for patients with primary cutaneous nocardiosis is excellent.
- In disseminated disease in immunocompromised patients, the cure or improvement rate can be as high as 90% with appropriate antibiotic therapy.
- In a review of 137 cases of nocardiosis treated with TMP-SMZ, the cure or improvement rate was as high as 97% for soft tissue infections and as low as 50% with serious CNS infections. Immune suppression significantly affected the cure rate.
- In an immunocompetent host, primary cutaneous nocardiosis is rarely fatal; full recovery can be expected with appropriate therapy.
Patient Education
- Patient education regarding proper wound care is important.
- Patients must be educated about the importance of an extended course of antibiotics, which may be difficult to maintain if the apparent infection has resolved and the patient no longer feels ill.
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