treatment of larva migrans cutanea (creeping eruption): a comparison between albendazole and...
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Pharmacology and therapeutics
Treatment of larva migrans cutanea (creeping eruption): acomparison between albendazole and traditional therapy
Giancarlo Albanese, MD, Caterina Venturi, MD, and Giuseppe Galbiati, MD
Abstract
Background Creeping eruption (CE), which is characteristic of tropical and subtropical
regions, is being increasingly frequently observed in Italy. The presence on the beaches of
stray animals infected by nematodes of the Ancylostoma species favors contact between
human skin and the larva-infested soil.
Materials and methods Our experience with 56 patients (13 cryotherapy, one
thiabendazole together with cryotherapy, six thiabendazole, two albendazole with
cryotherapy, and 34 albendazole) is described.
Results A prompt and de®nitive cure was achieved in all 56 patients. The therapeutic
effectiveness of the various methods used is therefore equivalent.
Conclusions We believe that albendazole should be considered the ®rst choice for
treatment. It is extremely well tolerated and patient compliance is good.
Introduction
Creeping eruption (CE) is a parasitosis, featuring creeping
cutaneous lesions, endemic to hot, humid, tropical and
subtropical areas (Fig. 1), but also increasingly evident in
other areas due to frequent tourist and business travel to
exotic places.1±7 It is mainly caused by Ancylostoma
braziliense, a helminth that normally lives in the intestines
of dogs, cats, and wild animals. Less frequently other
species may result in the same clinical picture: Ancylosto-
ma caninum, Uncinaria stenochepala, Bunostomun phle-
botomun, or the human larvae of Necator americanus and
Ancylostoma duodenale.3±5,8,9
The life-cycle of the various nematodes is thus very
similar. The eggs of parasites, expelled by the infected
animals with the feces in sandy soil, mature into larvae
which are initially rhabditiform, then strongyloid, and
then, within 5±7 days, develop into the infective ®lariform
type.3,4,8
If humans come into contact with contaminated soil,
the larvae can cross unbroken skin or, even more
frequently, enter via the hair follicles, sweat glands, or
damaged skin.3,4 After a variable length of time,
proceeding at about 2±5 cm/day, they start to migrate
into the epidermis, especially at night, giving rise to an
initial erythematous, papular, aspeci®c itching lesion,
more frequently located on the feet, buttocks, and
thighs. A moderately in¯amed, winding, usually raised,
erythematous, swollen cutaneous lesion appears, varying
in color between pink and dark red, 2±3 mm thick, with
a ¯uid serous content, along which there may be
nodules or blisters. Sometimes the clinical picture is
represented only by folliculitis.1±5,8±11
Patients, often bathers, but also gardeners, farmers,
hunters, or people who lay water pipes, etc., complain of
intense itching, which is often the cause of insomnia and
violent scratching, and sometimes of a burning sensation.
Infective or allergic complications are possible. Sometimes
a Loef¯er syndrome may coexist.1,4,5,8,9,11
Diagnosis of this parasitosis is typically based on clinical
anamnesis. Because the parasite itself is often located
beyond the visible lesions, it is extremely dif®cult to isolate
it via skin biopsy. Hematochemical tests sometimes reveal
hypereosinophilia or an increase in the immunoglobulin E
(IgE) rate. Some authors recently proposed examining the
lesion under epiluminescent microscopy for diagnostic
con®rmation, while others suggest searching for speci®c
IgG with enzyme-linked immunoabsorbent assay (ELISA)
methods.4±6,8
This dermatosis requires differential diagnosis from
other parasitoses, e.g. larva migrans viscerale, eruptions
of Strongyloides stercoralis, subcutaneous nodules or
granulomas due to other species, and different pictures of
From the Divisione Dermosi®lopatica,
Micologia e Dermatologia Tropicale,
Ospedale S. Gerardo, Monza (MI),
Italy
Correspondence
Giancarlo Albanese, MD
Divisione Dermosi®lopatica, Micologia
e Dermatologia Tropicale
Via Donizetti, 106
20052 Monza (MI)
Italy
Drug names
albendazole: Albenza (USA), Zentel
(Italy)
ã 2001 Blackwell Science Ltd International Journal of Dermatology 2001, 40, 67±71
67
myiasis, but also from simpler and more common
pathologies, such as allergic contact dermatitis, urticaria
factitia, other types of dermatitis, and pyoderma.3,5,8
Although CE normally disappears by itself within
anything from 1 to 6 months or, rarely, longer, the intense
itching, the unpleasant sensation felt by the patient of the
larva slowly creeping below the skin, and the possible
complications suggest that treatment should be given that
can reduce the length of the disease, even if different
therapeutic options turn out to be somewhat ineffective or
dif®cult to put into practice.1±3
Cryotherapy, for instance, which is painful for the
patient, can only be applied for a limited number of lesions
and is unlikely to solve the problem due to the dif®culty in
identifying the exact position of the parasite, which can
anyway withstand low temperatures.1±4,9,11
Thiabendazole for topical use requires repeated treat-
ment throughout the day, sometimes leads to local
irritating reactions, can only be applied if lesions are
neither numerous nor widespread, and is often followed by
recurrence.2±5,7,8,10,11
Some authors have suggested the topical use of cream
with 2% gammexane, ointment with 25% piperazine, or
metriphonate.3,5
The systemic use of thiabendazole, 25±50 mg/kg once or
twice a day for 2±5 days, or in a single 50 mg/kg dose, may
be effective in the case of widespread lesions, but is
contraindicated due to its possible poorly tolerated
side-effects. What's more, this drug is not available in
Italy.2±5, 7±11
Figure 1 Endemic areas for creeping
eruption
Figure 2 Distribution of the cases by year
Table 1 Seaside resorts visited by our patients
Country Number of patients
Central America 29 (52%)
Jamaica 12
Mexico 9
Cuba 3
S Domingo 2
Barbados 1
Grenada 1
Caribbean 1
Africa 10 (18%)
Kenya 6
Tunisia 1
Tanzania 1
Senegal 1
Egypt 1
South America 8 (14%)
Brazil 6
Venezuela 2
Asia 7 (12%)
Malaysia 3
Indonesia 1
Thailand 1
Maldives 1
Middle East 1
Europe 2 (4%)
Italy (Apulia, Sardinia) 2
Pharmacology and therapeutics Treatment of larva migrans cutanea Albanese, Venturi, and Galbiati
International Journal of Dermatology 2001, 40, 67±71 ã 2001 Blackwell Science Ltd
68
Another possibility is a single 150±200 mg/kg dose of
ivermectin, a drug capable of eradicating the parasite with
minimum or no side-effects, but which still needs more
thorough research, and which we only use in a veterinary
context.2,4,5,7,10,11
Flubendazole (200 mg/day for 5 days), currently at an
experimental stage, would appear to offer good prospects
for the future.4
Materials, methods, and results
In our experience, a valid alternative to conventional
treatment is albendazole, recommended in the case of CE at
adoseof400±800 mg/dayforaperiodthatmayvaryfrom1to
7 days. It is an anthelminth which is effective against eggs,
larvae, and the adult stage of numerous helminths.1±4,7±11
Exactly how it works is still not completely clear. It may
reduce or block the uptake of glucose, thus determining the
depletion of glycogen reserves with a decrease or cessation in
the production of adenosine triphosphate (ATP). It may
inhibit fumarate-reductase or maleate-dehydrogenase, de-
couple oxidative phosphorylation, or induce the degenera-
tion of the cytoplasmatic microtubules with the death of the
parasitebyautolysis. Finally, someauthorsbelieve that it acts
Figure 3 Distribution of our survey by
continent
Figure 4 Sites most affected by the parasitic disease
Figure 5 Clinical view of a patient before treatment
Albanese, Venturi, and Galbiati Treatment of larva migrans cutanea Pharmacology and therapeutics
ã 2001 Blackwell Science Ltd International Journal of Dermatology 2001, 40, 67±71
69
by inhibiting microtubule polymerization via the com-
pound's speci®c and highly selective link to b-tubulin. It is
particularly resistant to inactivation, little absorbed in the
intestine, and therefore usually well tolerated if administered
for a short length of time. In the long term, it can lead to an
increase in liver enzymes or rarely to alopecia, allergic
reactions, leukopenia, and thrombocytopenia. It has proved
to be teratogenic and embryotoxic in rats and rabbits, but
does not appear to be mutagenic or carcinogenic.1±4,9±11
Our experience concerns 56 patients of both sexes (21
female (37%) and 35 male (63%)), aged between 2 and
60 years (average, 30.43 years), who came to our
attention with suspected CE between March 1987 and
December 1999 (Fig. 2). All had been on recent trips to
seaside resorts for their holidays (Fig. 3), mainly (95%)
in endemic areas for this parasitosis (Table 1). Further
information about patient characteristics is given in
Table 2. The dermatosis was mainly found on the feet,
while some patients had cutaneous alterations distrib-
uted as shown in Fig. 4.
The patients were treated using various procedures,
according to whatever was available at the time of
diagnosis. In detail, 13 patients (23%), among the ®rst to
come to our attention, were treated with physical therapy
because there were no speci®c low toxicity drugs for
systemic use for this parasitosis on the market at that time.
None had recurrent episodes with time or remarkable
scars, but many underlined how painful the procedure had
been. A further six patients (11%) were treated with 25±
50 mg/kg/day of thiabendazole for systemic use for two
consecutive days, despite its poor availability in Italy, and
one received both this drug and cryotherapy. There was a
regression of itching and cutaneous lesions in all these
Figure 6 Clinical view of a patient after treatment
Table 2 Characteristics of the patients studied
Characteristic Number of patients
Total patients 56
Age
Median 30.43
Range 2±60
Sex
Male 35 (63%)
Female 21 (37%)
Incubation period
Median < 1.5 months
Range < 1 month±5 months
Type of stay
Tourist 56 (100%)
Business 0 (0%)
Presence of dogs on beach
Yes 45 (80%)
No 5 (9%)
Don't remember 6 (11%)
Type of lesion
Localized 49 (88%)
Widespread 7 (12%)
Unilateral 39 (70%)
Bilateral 17 (30%)
Single 35 (63%)
Multiple 21 (37%)
Sites
Trunk 9 (16%)
Arm 1 (2%)
Scrotum 2 (4%)
Buttock 8 (14%)
Thigh 8 (14%)
Knee 1 (2%)
Shin 2 (4%)
Foot 40 (71%)
Sole 28 (50%)
Instep 19 (34%)
Side 9 (16%)
Treatment
Cryotherapy 13 (23%)
Thiabendazole 6 (11%)
Thiabendazole + cryotherapy 1 (2%)
Albendazole + cryotherapy 2 (4%)
Albendazole 34 (60%)
Pharmacology and therapeutics Treatment of larva migrans cutanea Albanese, Venturi, and Galbiati
International Journal of Dermatology 2001, 40, 67±71 ã 2001 Blackwell Science Ltd
70
cases, although they suffered from nausea, diarrhea, and
dizziness, which appeared while they were taking the
treatment proposed.
Of the 36 patients observed from 1993 to 1999 and
treated with 400 mg/day of albendazole for three con-
secutive days, in two cases associated with cryotherapy,
none reported adverse reactions, despite a prompt and
de®nitive cure. Despite the low dosage used, this drug is
active in a short time: after 24±48 h, larva migration in the
skin was stopped with consequent regression of itching.
Moreover, the low dosage makes reactions to the drug
practically nonexistent and reduces the patient's commit-
ment to a minimum (Figs 5 and 6).
Conclusions
Duetotheincreasedincidenceofthisparasitosis inourclinics,
especially during the summer and Christmas holidayperiods,
and the need for treatment due to the unpleasant symptoms
and signs that accompany the dermatosis, albendazole can
de®nitely be considered the drug of ®rst choice. The painful
and laborious nature of cryotherapy, the numerous, unplea-
santside-effects inducedbythesystemicuseof thiabendazole,
the frequent recurrence and poor compliance with galenical
therapy, and the uncertainties of the new drugs proposed
make albendazole stand out as the only tolerable and fast-
acting solution available on the Italian market.
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