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Published on: July 15, 2011
Leprosy - an overview of clinical features, diagnosis, and treatment
1Division of Tropical Dermatology, Department of Dermatology, Venereology, and Allergology, Federal Army Hospital, Hamburg, Germany.
Abstract:
Leprosy is a chronic infectious disease caused by Mycobacterium (M.) leprae. Worldwide, 210,758 new cases were diagnosed in 2015. The highest incidence is found in India, Brazil, and Indonesia. While the exact route of transmission remains unknown, nasal droplet infection is thought to be most likely. The pathogen primarily affects the skin and peripheral nervous system. The disease course is determined by individual host immunity. Clinically, multibacillary lepromatous variants are distinguished from paucibacillary tuberculoid forms. Apart from the various characteristic skin lesions, the condition is marked by damage to the peripheral nervous system. Advanced disease is characterized by disfiguring mutilations. Current treatment options are based on WHO recommendations. Early treatment frequently results in complete remission without sequelae. While paucibacillary forms are treated with rifampicin and dapsone for at least six months, multibacillary leprosy is treated for at least twelve months, additionally requiring clofazimine. Leprosy reactions during therapy may considerably aggravate the disease course. Besides individual treatment, WHO-supported preventive measures and strategies play a key role in endemic areas.
Insights
Leprosy, a chronic infection by Mycobacterium leprae, affects the skin and nerves. Early treatment with multidrug therapy often leads to remission, but prevention strategies are crucial in endemic areas.
Area of Science:
- Infectious Diseases
- Dermatology
- Neurology
Background:
- Leprosy is a chronic infectious disease caused by Mycobacterium leprae, with over 210,000 new cases globally in 2015.
- Transmission is likely via nasal droplets, primarily affecting the skin and peripheral nervous system.
- Disease presentation varies from paucibacillary tuberculoid to multibacillary lepromatous forms, influenced by host immunity.
Purpose of the Study:
- To provide an overview of leprosy, including its epidemiology, clinical manifestations, and current treatment guidelines.
- To highlight the importance of early diagnosis and treatment for complete remission.
- To emphasize the role of preventive measures in endemic regions.
Main Methods:
- Review of current medical literature and World Health Organization (WHO) recommendations on leprosy.
- Description of clinical classifications and diagnostic features.
- Outline of treatment regimens for different leprosy forms.
Main Results:
- Early treatment of paucibacillary leprosy involves rifampicin and dapsone for at least six months.
- Multibacillary leprosy requires a 12-month regimen including clofazimine, rifampicin, and dapsone.
- Leprosy reactions can complicate treatment, necessitating management alongside standard therapy.
Conclusions:
- Early and appropriate multidrug therapy leads to remission and prevents sequelae.
- Preventive strategies supported by the WHO are essential in leprosy-endemic areas.
- Continued research and public health initiatives are vital for leprosy control and elimination.
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