Download - Cutaneous Leishmaniasis in OIF/OEF Soldiers
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Cutaneous Leishmaniasis Cutaneous Leishmaniasis in OIF/OEF Soldiersin OIF/OEF Soldiers
Leishmaniasis Working Group
July 2004
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IntroductionIntroduction• Leishmaniasis is a parasitic disease transmitted by the
bite of sand flies.
• Found in parts of at least 88 countries including the Middle East
• Three main forms of leishmaniasis• Cutaneous: involving the skin at the site of a sandfly bite
• Visceral: involving liver, spleen, and bone marrow
• Mucosal: involving mucous membranes of the mouth and nose after spread from a nearby cutaneous lesion (very rare)
• Different species of Leishmania cause different forms of disease
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Cutaneous Leishmaniasis (CL)
• In Iraq & Kuwait, L. major is the most common species• L. major causes skin infection
• Approx. 1.5 million new cases of cutaneous leishmaniasis (CL) in the world each year
• >500 cases of CL from L. major from OIF by Spring 2004! (only few cases from OEF)
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Endemic Areas for LeishmaniasisEndemic Areas for Leishmaniasis
BMJ 2003;326:378
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Cutaneous Leishmaniasis (CL)Cutaneous Leishmaniasis (CL)
• Sore is commonly called the “Baghdad boil”
• No OIF CL has disseminated to visceral
• All Leishmaniasis is highly preventable!
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•“In some cities infection is so common and so inevitable that normal children are expected to have the disease soon after they begin playing outdoors, and visitors seldom escape a sore as a souvenir. Since one attack gives immunity, Oriental sores appearing on an adult person in Baghdad brands him as a new arrival…”
–Introduction to Parasitology, 1944
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PreventionPrevention• Suppress the reservoir:
dogs, rats, gerbils, other small mammals and rodents
• Suppress the vector: Sandfly• Critical to preventing disease in
stationary troop populations
• Prevent sandfly bites: Personal Protective Measures• Most important at night• Sleeves down• Insect repellent w/ DEET• Permethrin treated uniforms• Permethrin treated bed nets
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Life CycleLife Cycle
3- Another sandfly bites human and ingests blood infected with Leishmania
2- Sandfly bites human and injects Leishmania into skin
1- Sandfly bites animal and ingests blood infected with Leishmania
4- Cycle continues when sandfly bites another human or animal reservoir
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Cutaneous Leishmaniasis (CL)Cutaneous Leishmaniasis (CL)
• Most common form• Characterized by one or more sores, papules or nodules • Sores can change in size and appearance over time• Often described as volcano-like with a raised edge and
central crater• Sores are usually painless but can become painful if
secondarily infected• Swollen lymph nodes may be present near the sores
(e.g. axilla/epitrochlear if sores are on the arm or hand)
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Cutaneous Leishmaniasis (CL)Cutaneous Leishmaniasis (CL)
• Most sores develop within a few weeks of the sandfly bite, however they can appear up to months later
• Sores of CL heal spontaneously in 2-12 months
• Sores can leave significant scars and be disfiguring if they occur on the face
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Cutaneous Leishmaniasis (CL) Cutaneous Leishmaniasis (CL) DiagnosisDiagnosis
• Heightened awareness of individuals, small unit leaders, and medical personnel is critical
• Nonhealing sores (4-6 weeks) after a trial of oral antibiotics should be referred for evaluation
• Soldiers/deactivated personnel should tell their provider that they were in SW or Central Asia
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Cutaneous Leishmaniasis (CL)Cutaneous Leishmaniasis (CL) Diagnostic Testing Diagnostic Testing
• Dermal scraping and smear is recommended if the presumptive diagnosis is CL, and should augmented by submission of tissue for Polymerase Chain Reaction ( PCR) -see attached info sheet & accompanying video.
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Diagnosis – Dermal Scraping & PCR Minimize blood & overlying keratin/crusted debris!
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Cutaneous Leishmaniasis (CL)Diagnostic Testing
• Punch biopsy with touch prep may be preferred for atypical lesions & if other disease processes are being considered (see attached info sheet).
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Cutaneous Leishmaniasis (CL)Diagnostic Testing
• Army pathologists interpret scrapings & any biopsies/touch preps via Giemsa stains.
• Forward slides & PCR specimens to AFIP. (See AFIP web site re: CL & attached Army Pathology Consultant info paper). AFIP maintains registry.
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Leishmania Diagnostic Laboratory (LDL) at WRAIR
• MTFs and the AFIP maintain a close working relationship with the LDL
• Tissue culture & PCR interpretation capability
• POC LTC Pete Weina, CPT Eric Fleming, Mr. John Tally
• DSN 285-9956/9206/9487 FAX 285-7360, com 301-319-
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Cutaneous Leishmaniasis (CL)Diagnosis
• If a patient has lesions that were historically consistent with CL, but are now almost completely healed or re-epithelialized, no diagnostic testing may be needed at all.
• Document such cases for tracking purposes as “clinically presumptive CL”
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Cutaneous Leishmaniasis (CL) Treatment
• Early recognition, testing, & treatment is critical for facial involvement, other exposed sites, & for those with rapidly enlarging or multiplying lesions
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Cutaneous Leishmaniasis (CL)Cutaneous Leishmaniasis (CL) Treatment Options Treatment Options
- No Rx (self-resolving process)
- Paromomycin topical (not yet FDA approved)
- Cryotherapy ( localized freezing)
- ThermoMed (localized heat)
- Fluconazole -oral (off-label use, for L. major only )
- Pentostam (sodium stibogluconate) – IV for 10-20 days
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Cutaneous Leishmaniasis (CL)No Treatment (watchful waiting)
• For lesions that are in the late resolution phase, with near complete re-epithelialization
• For small (<nickel-sized/2cm) and few (<5) lesions, especially on concealed locations of the trunk & proximal extremities, a patient can elect no treatment after discussing other options with the provider
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Cutaneous Leishmaniasis (CL)Paromomycin Topical Ointment Rx
• Not currently FDA approved
• Used extensively in other countries
• For ulcerative lesions
• AMEDD is studying this option
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Cutaneous Leishmaniasis (CL)Cryotherapy Treatment
• Cryotherapy (localized freezing) - liquid nitrogen
• Only for those experienced in this technique
• 30 second freeze, 60 second thaw, repeat once
• Extreme caution/avoid in darker-skinned patients
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Cutaneous Leishmaniasis (CL)ThermoMed (localized heat Rx)
• Battery-operated radiofrequency device
• Generous local anesthesia - 2% lidocaine
• 30 second burst to sized grids
• Site Rx with gentamicin or bacitracin oint. and non-stick dressing
• Requires training by those experienced with device (see accompanying video)
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Cutaneous Leishmaniasis (CL)Fluconazole Treatment
- Not FDA approved for CL
- L. major only!
- Use is off label per NEJM 2002;346:891
- Response might be slower than other treatments
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Cutaneous Leishmaniasis (CL)Cutaneous Leishmaniasis (CL)Pentostam (antimonial sodium stibogluconate) RxPentostam (antimonial sodium stibogluconate) Rx
• Given under a special FDA approved protocol ONLY at Walter Reed Army Medical Center (WRAMC) & Brooke Army Medical Center (BAMC) ID services in the U.S.
• WRAMC- DSN 662-1663/6740/8684/8691/8696, com 202-782-• BAMC- DSN 429-1286/5554/0848, com 210-429-
• 10-20 days of IV therapy
• Consider for those with active facial, ear, hand, feet lesions, large (>3cm) or multiple (>5) lesions, over joints of hands,feet, elbows, or those who have failed other modalities (after 60 days)
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Cutaneous Leishmaniasis (CL)Practical Considerations
• Leishmaniasis - lifelong ban as blood donor
• CL by L. major is not contagious (possible exception: very rare genital lesions - use condom)
• Relapse may occur in healed sites 2-3 months after Rx, requiring re-evaluation
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Cutaneous Leishmaniasis (CL)On-line Resources
• www.pdhealth.mil
• www.afip.org/hot-topics.html
• Army Derm AKO website
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Cutaneous Leishmaniasis (CL)Regional POC - Clinical Questions
ERMC MAJ Greg DyeNARMC LTC Glenn WortmannSERMC MAJ Rob WillardGPRMC COL David DooleyWRMC COL Joe MorrisPRMC COL Susan Fraser
Email via AMEDD Outlook
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Cutaneous Leismaniasis (CL)Pentostam Questions/Referrals
• East of Mississippi:• WRAMC DSN 662-1663/6740/8684/8691/8696, com 202-782-
• West of Mississippi:• BAMC DSN 429-1286/5554/0848, com 210-429
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Cutaneous Leishmaniasis (CL)Preventive Medicine/Reporting POC
ERMC COL Kent Bradley
NARMC COL Dallas Hack
SERMC LTC Edward Boland
GPRMC COL Forest Oliverson
WRMC COL Evelyn Bararaza
PRMC COL Glenn Wasserman
Email via AMEDD Outlook
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Visceral Leishmaniasis (VL)
• 12 cases in ODS from L. tropica
• 2 cases thus far from OEF/ 1 from OIF
• Fever, malaise, hepatospenomegaly, pancytopenia, hypergammaglobulinemia
• Can cause serious illness – refer quickly!
• Leishmaniasis is highly preventable!
• Contact Army Infectious Disease specialist