Eficacia del metronidazol gel 0.75% vs permetrina crema 5% en pacientes con rosácea. Hospital Manuel Fajardo, 2016-2017 / Effectiveness of metronidazole gel 0.75% vs permetrine cream 5% in patients with rosacea. Manuel Fajardo Hospital, 2016-2017

Introducción: la rosácea es una enfermedad inflamatoria crónica de etiología desconocida que se presenta con eritema centro facial permanente, con episodios transitorios de intensificación asociados a factores desencadenantes unido a otros síntomas y signos variados. Tiene diferentes formas clínicas, es de difícil manejo y por ello, aunque existen diferentes tratamientos, aún es válido continuar la búsqueda de otras alternativas terapéuticas. Objetivo: determinar eficacia del metronidazol gel 0.75%, permetrina crema 5%, y la combinación de ambos medicamentos en pacientes con rosácea facial tratados en el Hospital Fajardo en el período 2016 a 2017. Método: se realizó un estudio de intervención cuasi-experimental, abierto, longitudinal, aleatorizado con tres grupos de 30 pacientes, que recibieron tratamiento durante 3 meses, y fueron evaluados un mes después de terminar el tratamiento. Resultados: predominaron las mujeres, el fototipo cutáneo III, con piel grasa. La mejor respuesta terapéutica fue la asociación de ambos medicamentos con un 100% con respuesta satisfactoria, seguida de 92.9% con la permetrina y 79.3% con el metronidazol. Conclusiones: La respuesta terapéutica en la mayoría de los 3 grupos fue satisfactoria, aunque predominó la combinación de ambos medicamentos. Las reacciones adversas fueron leves y escasas.

Tick killing in situ before removal to prevent allergic and anaphylactic reactions in humans: a cross-sectional study

BACKGROUND: Tick anaphylaxis is a potentially fatal outcome of improper tick removal and management. OBJECTIVE: To investigate whether killing ticks in-situ with ether-containing sprays or permethrin cream, before careful removal by the mouthparts could reduce this risk. METHODS: This was a prospective study at Mona Vale Hospital Emergency Department (ED) in Sydney, New South Wales, over a 6-month period during the peak tick season of 2016. Tick removal methods, allergic/anaphylactic reactions were recorded for patients presenting with ticks in situ or having already removed the ticks themselves. Primary endpoint was allergic/anaphylactic reaction after tick killing/removal. RESULTS: One hundred twenty-one patients met study inclusion criteria. Sixty-one patients (28 known tick-hypersensitive) had ticks killed with Wart-Off Freeze or Lyclear Scabies Cream (5% w/w permethrin) before removal with fine-tipped forceps or Tick Twister. Three patients (2 known tick-hypersensitive) had allergic reactions (5%), none anaphylactic. The 2 known hypersensitive patients suffered reactions during the killing process and the third patient had a particularly embedded tick meaning it could not be removed solely by mouthparts. Fifty patients presented to the ED posttick removal by various methods, none using either fine-tipped forceps or Tick Twister, of which 43 (86%) experienced allergic reactions – 2 anaphylactic. Five patients suffered allergic reactions before presentation despite no attempt at kill or removal, but ticks had likely been disturbed by some other method. Five patients had live ticks removed in ED – 3 refused killing and had no reaction despite 1 having known hypersensitivity; 2 had ticks on eyelids contraindicating killing, 1 with known hypersensitivity but both had allergic reactions post removal. CONCLUSION: Results support killing ticks in-situ before careful removal by mouthparts to reduce allergic/anaphylactic reactions although further research is still required.

Escabiosis: lesiones pruriginosas altamente contagiosas / Scabies: highly contagious pruritic lesions

La escabiosis es una infestación producida por Sarcoptes scabiei, caracterizada por lesiones generalizadas pruriginosas. El diagnóstico es eminentemente clínico. Síntomas compatibles en varios miembros de la misma familia se consideran diagnósticos. El tratamiento consiste en la aplicación de Permetrina al 5% en la superficie cutánea.

Scabies is an infestation produced by Sarcoptes scabiei. Itchy generalized lesions characterized this pathology. The diagnosis is clinical. Compatible symptons presented in some members of the same family are considered diagnostic. The treatment is based in the application of Permetrine 5% in all the cutaneous area.

A Study of Clinical Aspects of Scabies in the Jeonbuk Province / 대한피부과학회지

BACKGROUND: Scabies is a contagious skin infestation primarily observed in poor or overcrowded environments. However, an individual may be affected regardless of hygiene and/or socioeconomic status, and/or age. OBJECTIVE: To investigate the characteristics and epidemiology of scabies in patients visiting a single tertiary hospital in Jeonbuk province. METHODS: We retrospectively reviewed the medical records of 194 patients with scabies who visited the Dermatology clinic at Wonkwang University Hospital between June 2015 and May 2018. RESULTS: Of the 194 patients investigated, 82 (42.3%) were men and 112 (57.7%) were women. The mean age of men was 46.3 years and that of women was 60.1 years. Scabies was diagnosed in patients most commonly in autumn. The most common symptom of scabies was the occurrence of papules (83.5%) followed by the presence of burrows (23.2%). The most common route of infection was a nursing hospital (26.3%), except unknown (29.4%). Medications used to treat scabies included 5% permethrin cream, 10% crotamiton ointment, and 1% gamma benzene hexachloride lotion. The mean duration of treatment was 33.9 days using 5% permethrin cream, 34.8 days using 10% crotamiton ointment, and 34.6 days using 1% gamma benzene hexachloride lotion. CONCLUSION: This study could help in the prevention and management of scabies, by guiding clinicians in choosing optimal therapeutic agents based on patients' condition.

Crusted scabies due to indiscriminate use of glucocorticoid therapy in infant

Abstract Crusted or Norwegian scabies is a parasitic infectious disease caused by Sarcoptes scabiei var. hominis that mainly affects immunocompromised individuals and those with neurological patients. We report a case of crusted scabies in a 4-month-old infant who had been treated erroneously for atopic dermatitis with high doses of corticosteroids. This initial misdiagnosis associated with the abusive use of corticosteroid facilitated the evolution of scabies to crusted scabies and its main complications of secondary infection and sepsis.

Safety, Efficacy, and Physicochemical Characterization of Tinospora crispa Ointment: A Community-Based Formulation against Pediculus humanus capitis

The high prevalence of pediculosis capitis, commonly known as head lice (Pediculus humanus capitis) infestation, has led to the preparation of a community-based pediculicidal ointment, which is made of common household items and the extract of Tinospora crispa stem. The present study aimed to evaluate the safety, efficacy, and physicochemical characteristics of the T. crispa pediculicidal ointment. The physicochemical properties of the ointment were characterized, and safety was determined using acute dermal irritation test (OECD 404), while the efficacy was assessed using an in vitro pediculicidal assay. Furthermore, the chemical compounds present in T. crispa were identified using liquid-liquid extraction followed by ultra-performance liquid chromatography quadruple time-of-flight mass spectrometric (UPLC-qTOF/MS) analysis. The community-based ointment formulation was light yellow in color, homogeneous, smooth, with distinct aromatic odor and pH of 6.92±0.09. It has spreadability value of 15.04±0.98 g·cm/sec and has thixotropic behavior. It was also found to be non-irritant, with a primary irritation index value of 0.15. Moreover, it was comparable to the pediculicidal activity of the positive control Kwell®, a commercially available 1% permethrin shampoo (P>0.05), and was significantly different to the activity of the negative control ointment, a mixture of palm oil and candle wax (P<0.05). These findings suggested that the community-based T. crispa pediculicidal ointment is safe and effective, having acceptable physicochemical characteristics. Its activity can be attributed to the presence of compounds moupinamide and physalin I.

Manejo en atención primaria de escabiosis en una familia con ruralidad extrema / Primary care management of scabies in a family with extreme rurality

La dermatoparasitosis producida por el acaro Sarcoptes scabiei variedad hominis, presenta una distribución poblacional relacionada al hacinamiento, condiciones higiénicas deficientes, pobreza y características geoclimáticas. El contagio ocurre de forma directa cutánea o a través de fómites. Liquiñe,poblado fronterizo de la Región de los Ríos, Chile, presenta en gran parte de su población las características mencionadas, con difícil acceso a comunicación digital y derivación médica. La incidencia de sarna se ve modificada al realizar intervenciones educacionales y saneamiento local, tanto como el diagnostico precoz y el tratamiento oportuno logran una modificación sustancial de la prevalencia. Se presenta el reporte de un caso. Paciente sexo femenino, 33 años, que presenta lesiones por grataje, excoriadas, con pápulo-pústulas de dos años de evolución, con manejo inicial sintomático por diagnóstico de dermatitis y psoriasis sin mejora de las lesiones. Conjuntamente se identifica en la hija de 4 años, lesiones primarias de características similares a las iniciales. Las lesiones de la menor se presentan como vesículas en espacio interdigital, muñe-cas, región periumbilical y surco acarino, compatibles con sarna. Se inicia tratamiento tópico permetrina 5 %a toda la familia, basados en las recomendaciones de la guía de manejo MINSAL. Se logra tras 2 años de evolución regresión total de los signos y síntomas a los 2 meses de iniciada la terapia. La presente revisión de caso pretende reforzar las ideas de diagnóstico precoz, tanto de caso índice como de probables contactos,educación continua a la comunidad. Tratamiento efectivo y oportuno, adecuado a la realidad socio cultural década localidad, tomando en cuenta factores de riesgos para la presentación y el abandono de la terapia. Asimismo promover las redes institucionales para la distribución de tratamiento, asesoramiento por especialistas y conocimientos actualizados de la semiología de cada cuadro dermatológico por el médico general.

The dermato parasitosis producedby the Sarcoptes scabiei mite hominis variety, has apopulation distribution related to over crowding, poor sanitation, poverty and geo-climatic characteristics.Transmission occurs directly through skin or fomites.In the border town of Liquiñe in the Region de los Rios,Chile, a substantial amount of the population is subject to the above characteristics, with difficult access to digital communication and medical referrals. The incidence of scabies is modified through educational interventions, and local sanitation, as well as early diag-nosis and timely treatment thus achieving a substantial change in prevalence. A case report is presented. Female patient, 33 years old presents with excoriated crusted lesions, with papules and pustules following two years of development, initial symptomatic management diagnosis of psoriasis and dermatitis,showed no improvement of the lesions. At the same time the 4 year old daughter of the patient presented with primary lesions similar to baseline characteristics.The child ́s lesions presented as vesicles in interdigital space, wrists, periumbilical region and mite grooves compatible with scabies. Permethrin 5% topical treatment was prescribed for the whole family, basedon the recommendations of the MINSAL guide management is initiated. At 2 months of treatment therapy on set, complete recovery was achieved following two years of evolution of signs and symptoms.This case review aims to reinforce the ideas of earlydiagnosis, in both probable index case and contact,and continuing education in the community. Effective and timely treatment, in conjunction with the socio-cultural reality of each community, taking into account risk factors, such as seeking medical treatment and abandoning therapy. Furthermore, it is also intended to promote institutional networks for treatment dissemination, counseling by specialists and updated information for each dermatological presentation for the general medicine physician.

Randomized controlled trial on the effect of coconut oil, vinegar plus cooking coconut oil versus 1% permethrin shampoo in the treatment of pediculosis

Objective@#To determine the efficacy of cooking coconut oil and vinegar as compared to 1% Permethrin shampoo in the treatment of Pediculosis humanus capitis in children 3 – 12 years old. @*Methodology@#The study was conducted in Barangay 704, Zone 77 in Malate among children 3 – 12 years old. Two hundred forty-five subjects were screened and the computed sample size was 150. Subjects were randomized to three treatment groups: coconut oil (CO) group; vinegar plus coconut oil (CV) group; and 1% permethrin shampoo (PS) group. Treatments were given on the 1st and 8th day. The final level of infestation was determined on the 14th day. Cure rates, failure rates, and expenses were also determined. @*Results@#Permethrin achieved superiority over plain coconut oil (X2=18.77 p-value = 0.00). There was no sufficient evidence to prove the superiority of permethrin over coconut-vinegar solution (X2=1.04 p-value = 0.30). Twenty-two percent (11) of the participants from the PS group developed itching and irritation. No adverse effect was reported from the CO and CV groups. Permethrin was 14 times and five times more expensive than coconut oil and vinegar plus coconut oil, respectively. @*Conclusion@#Permethrin shampoo had a cure rate of 98%. Plain coconut oil and vinegar plus coconut oil had cure rates of 68% and 94%, respectively. Plain coconut oil had the highest failure rate at 36%, vinegar plus coconut oil at 6%, and permethrin shampoo with 2%. Adverse effects were exclusive to the PS group. Plain coconut oil was the most economical but coconut oil with vinegar with its significant cure rate can be an alternative therapy to permethrin shampoo in the treatment of head lice in children.

Serie parasitosis en dermatología: pediculosis / Parasitosis in dermatology: pediculosis

La enfermedad producida por Pediculus humanus capitis, conocida como pediculosis, es una parasitosis específica del ser humano de distribución mundial. El contagio puede ser directo por contacto con el cuero cabelludo de una persona afectada, o por fómites contaminados con parásitos, por lo que no distingue raza, sexo, edad ni nivel socioeconómico. Presentamos el caso de una paciente de 80 años con una forma típica de pediculosis. (AU)

The disease caused by Pediculus humanus capitis, known as pediculosis, is a human specific parasitosis. It has a worldwide distribution. Transmission can be by direct contact with the scalp of an affected person or by contaminated fomites with parasites. This infestation makes no distinction of race, sex, age, or socioeconomic status. We present a case of an 80 years old patient with a typical case of pediculosis. (AU)

Comparison of school-based and home-based application of permethrin shampoo for the treatment of Pediculosis capatis - A pragmatic cluster-randomized trial

@#<p style="text-align: justify;"><strong>BACKGROUND:</strong> Pediculosis continues to be a common yet neglected public health problem especially in children. Trials to test for effectiveness for head lice interventions are heterogeneous, and a recent systematic review recommended  the use of cluster randomization and centralized administration (e.g. school) of permethrin for pediculosis trials.</p> <p style="text-align: justify;"><strong>OBJECTIVE:</strong> To compare the effectiveness of a school-based to a home-based intervention using permethrin 1% shampoo in treating pediculosis capitis. </p> <p style="text-align: justify;"><strong>METHODS:</strong> We conducted a pragmatic, cluster-randomized trial at the Makati Elementary School. All Grade Four students  (n = 211), belonging to a total of five class sections, were invited to participate in the study. Students with a known allergic reaction to permethrin 1% shampoo, with open wounds on the scalp, or were absent on Days 1 or 10 of the intervention period were excluded. The five class sections were randomized to receive permethrin 1% shampoo to be applied either in school, or at home. The students were classified as having none, light, medium, or heavy infestation prior to Day 1 and after Day 10 treatment. Prevalence, incidence, and treatment outcomes were measured.</p> <p style="text-align: justify;"><strong>RESULTS:</strong> The baseline prevalence of pediculosis capitis was 58.4%. General characteristics of students were similar between groups. No significant clustering in pediculosis classification was observed. The school-based group had the same prevalence in pediculosis at Days 1 and 10, had no incident cases, and were limited to light infestation by Day 10, but had no treatment success outcomes. The home-based group had increased prevalence by Day 10, poor compliance with Day 1 and 10 shampoo,  incident cases, although it registered a higher treatment success rate.</p> <p style="text-align: justify;"><strong>CONCLUSION:</strong> Compared to standard home based intervention, a school-based strategy resulted in less incident cases (0% vs. 37%), reduction in pediculosis severity (p = 0.007), and higher compliance (100% vs. 58.3%). Control of pediculosis in this specific community is largely warranted because of its high prevalence rate of 59.7%.</p> <p style="text-align: justify;"> </p>

Comparing the quality of life by using two therapeutic approaches [10% sulphur ointment and 5% permethrin cream] in scabies patients

To compare the quality of life by using two therapeutic approaches [10% sulphur ointment and 5%permethrin cream] in patients with scabies. Retrospective / comparative study. This study was conducted in Basic Medical Science Institute and Dermatology Department of Jinnah Postgraduate Medical Centre in Karachi from 1[st] Dec 2010 to 30[th] May 2011. This study sample consisted of 130 [4 dropped out] clinically diagnosed cases of scabies divided into two groups; A and B. Each group was further subdivided into three age groups. Group A was asked to apply 5% permethrin cream on day 0 and to be repeated after 15 days and GroupB treated with 10% sulphur ointment for three consecutive nights and repeated on day15. Data was gathered by a questionnaire. Patients follow up was done on days 3, 15 and 30 and quality of life was determined on day 0 and 30 by using Dermatological Life Quality Index. Quality of life was found to be low in scabies patients and treatment with 10% Sulphur ointment and 5% permethrin not only improved clinical symptoms but also their quality of life significantly. Scabies affects quality of life because of severe itching and lack of sleep and proper topical therapy significantly improves clinical symptoms and quality of life

The behaviour of mosquitoes in relation to humans under holed bednets: the evidence from experimental huts

The physical integrity of bednets is a concern of national malaria control programs, as it is a key factor in determining the rate of replacement of bednets. It is largely assumed that increased numbers of holes will result in a loss of protection of sleepers from potentially infective bites. Experimental hut studies are valuable in understanding mosquito behaviour indoors, particularly as it relates to blood feeding and mortality. This review summarises findings from experimental hut studies, focusing on two issues: (i) the effect of different numbers or sizes of holes in bednets and (ii) feeding behaviour and mortality with holed nets as compared with unholed nets. As might be expected, increasing numbers and area of holes resulted in increased blood feeding by mosquitoes on sleepers. However, the presence of holes did not generally have a large effect on the mortality of mosquitoes. Successfully entering a holed mosquito net does not necessarily mean that mosquitoes spend less time in contact with the net, which could explain the lack in differences in mortality. Further behavioural studies are necessary to understand mosquito behaviour around nets and the importance of holed nets on malaria transmission.

Evaluación de ovitrampas letales como estrategia para el control de Aedes aegypti / Evaluation of lethal ovitraps as a strategy for Aedes aegypti control

Introducción. El dengue es una enfermedad viral de transmisión vectorial de importancia en salud pública. La ausencia de una vacuna ha llevado a que las acciones de control se enfoquen principalmente en la disminución del mosquito vector. Sin embargo, estas estrategias tienen costos elevados. Las ovitrampas letales podrían contribuir de forma práctica en estrategias costo-efectivas para el control vectorial. Objetivo. Determinar el tipo de ovitrampas letales más eficiente para el control vectorial de Aedes aegypti , combinando diferentes tipos de insecticidas, sustrato de ovipostura e infusión atrayente. Materiales y métodos. El estudio se llevó a cabo en dos etapas. En la primera, se evaluaron en el laboratorio 18 ovitrampas diferentes provenientes de la combinación de insecticidas (deltametrina y permetrina), sustratos de ovipostura (toalla, dacrón y franela) e infusiones atrayentes (infusión de heno al 10 y 20 % y agua declorada). Para esta evaluación, las ovitrampas se colocaron en el interior de una jaula de evaluación y se liberaron 100 hembras grávidas de A. aegypti . Se seleccionaron las seis mejores ovitrampas con base en la mayor cantidad de oviposturas y en la menor emergencia larvaria. La segunda etapa consistió en evaluar las seis mejores ovitrampas en condiciones de campo. Resultados. Se observó una diferencia estadística entre las 18 ovitrampas en el laboratorio. Las que tenían deltametrina fueron las que presentaron los mejores resultados. En campo se observó que la ovitrampa más eficiente fue la compuesta por deltametrina, toalla e infusión de heno al 10 %. Conclusiones. La combinación de deltametrina, toalla y solución de heno al 10 % fue la más eficiente para la reducción vectorial de A. aegypti .

Introduction: Dengue fever is a vector-borne viral disease of major public health importance. In the absence of a vaccine, control measures are primarily focused on reducing the mosquito vector. However, these strategies are very expensive, and the use of lethal ovitraps could contribute, in a practical manner, to the design of cost-effective strategies for vector control. Objective: To determine the most efficient type of lethal ovitrap for Ae. aegypti vector control by combining different types of insecticides, oviposition substrates and attractant infusions. Materials and methods: The study was conducted in two stages. In the first, 18 different ovitraps resulting from the combination of insecticides (deltamethrin and permethrin), oviposition substrates (towel, dacron and flannel), and attractant infusion (10 and 20% hay infusion, and dechlorinated water) were evaluated in the laboratory. For this evaluation, ovitraps were placed into a mosquito holding cage, and 100 gravid Ae. aegypti females were released. The top six ovitraps were selected based on the higher number of registered eggs, and the lower hatched eggs percentage. In the second, the top six ovitraps were evaluated in field conditions. Results: In laboratory conditions, statistical differences were observed between the 18 ovitraps. The ovitraps with deltamethrin were the most efficient showing the best results. In field conditions, the ovitraps with the highest vector reduction were those combining deltamethrin/towel/10% hay infusion. Conclusions: The ovitrap combining deltamethrin, towel as oviposition substrate, and 10% hay infusion as attractant was the most efficient Ae. aegypti vector control.

A double blind randomized clinical trial on the efficacy of citronella shampoo versus 5% permethrin lotion in the treatment of head lice infestation

@#<p style="text-align: justify;"><strong>BACKGROUND: </strong>Resistance to standard permethrin lotion has been reported. There is a continuing search for more natural and safe remedies for head lice infestation among children. Citronella, a natural repellant, has been reported as a pediculocide.<br /><strong>OBJECTIVE:</strong>To compare the efficacy of Citronella shampoo versus 5% permethrin lotion in controlling head lice (Pediculosis humanus capitis) among children between 5 years old.<br /><strong>METHODS:</strong> A double-blind randomized clinical trial was performed at the community outpatient department of MPI-Medical Center Muntinlupa Foundation, PNR (Phil. National Railway) Site Bgy. Putatan, City of Muntinlupa. Children living in areas endemic for head lice were screened, and if found positive, were randomized equally to daily citronella shampooing (CS) or permethrin lotion (PL). Subjects were manually 2nd, 7th and 14th day of treatment. Chi-square test was used to compare proportions, which considered p-values less than .05 as statistically significant.<br /><strong>RESULTS:</strong> Eighty-two children with head lice were included in the final analysis. Children in both groups were comparable in terms of age, sex, family size with head lice, anthropometric measures, frequency of bathing and shampooing and baseline severity of head lice infestation. Citronella shampoo was as effective as the standard 5% permethrin lotion in eradicating head lice in children. The cure rates were comparable for day 2 (CS=65.1% versus PL=72.1%, p=.76), day 7 (CS=65.1% versus PL= 79.1%, p=.30), and day 14 (CS=81.4% versus PL =90.7%, p=33) of treatment. There were no re-infestations and adverse reactions noted for the use of Citronella and the refragrance was more acceptable.<br /><strong>CONCLUSION:</strong> Citronella is a effective as Permethrin lotion in the eradication of headlice and Citronella shampooing can be an alternative natural remedy of headlice and Citrone for pediatric head lice.</p>

Comparison between 25% benzyl benzoate, 5% permethrin and 10% crotamiton in the treatment of scabies in Gaza

To compare the efficacy of three different modalities treatments for scabies. This prospective study was carried out at Dermatology clinic at Jordanian Military Field Hospital, Gaza, Palestine from August 2012 to October 2012. A total number of 120 patients were included in the study. Scabies was diagnosed by clinical examination with three of the following criteria: burrows identification, presence of excoriated papules at the classical sites and nocturnal itching and was confirmed by direct light microscopic examination. Patients were divided into three groups 40 patients in each. The first group received 5% Permethrin cream, the second group received 25% benzyl benzoate and the third group received 10% crotamiton lotion. To assess cure rate we followed all patients up to one and two weeks after completing their treatment. Absence of itching along with no new lesions appearing and disappearing of the old lesions was considered a cure. The group who received 5% permethrin cream showed the highest cure rate, while those who received 10% crotamiton lotion showed the lowest cure rate. Permethrin cream rinse was the best treatment for scabies

Comparison of 1% permethrin, trimethoprim-sulfamethoxazole and crotamiton in the treatment of pediculosis capitis

To compare the efficacy of three different treatments for pediculosis capitis. This prospective study was carried out at Jordanian Military Field Hospital, Gaza from August 2012 to October 2012. A total of 60 patients were included in this study. Pediculosis capitis was diagnosed by direct examination of scalp and hair and was confirmed by direct light microscopic examination. Patients were divided into three equal groups: The first group received 1% permethrin cream, the second group received only oral Trimethoprim-sulfamethoxazole and the third group received crotamiton lotion. To assess cure rate we followed these patients up to two and four weeks after completing their treatment. Absence of adults' lice and nits was considered a cure. The group which received 1% permethrin cream showed the highest cure rate, while those who received oral Trimethoprim-sulfamethoxazole showed the lowest cure rate. 1 % permethrin cream rinse was the best treatment to head lice and oral TM-SMX therapy did not give desirable results

Demodicidosis en niños: serie de 17 casos / Demodicidosis in children: a series of 17 cases

Introducción: Los ácaros Demodex folliculorum y Demodex brevis son ectoparásitos habituales en la unidad folículo-sebácea de los humanos, fundamentalmente en adultos. En niños inmunocompetentes su presencia es rara. El objetivo de nuestro estudio es describir y caracterizar la demodicidosis en niños. Material y métodos: Se seleccionaron pacientes menores de 15 años con manifestaciones clínicas sugerentes de demodicidosis. El diagnóstico se efectuó mediante la cuantificación de Demodex sp con KOH 30% bajo microscopía de luz. Resultados: Se reclutaron 17 casos, 16 pacientes de sexo femenino, todos con lesiones faciales características. Sólo en 3 pacientes hubo inmunosupresión concomitante. Todos los casos respondieron al tratamiento con permetrina 5% tópica. Conclusión: La demodicidosis infantil puede presentarse en pacientes inmunocompetentes, su diagnóstico requiere un alto índice de sospecha. Se observa una excelente respuesta con permetrina 5% tópica.

Introduction: The mites Demodex folliculorum and Demodex brevis are common ectoparasites in the follicle-sebaceous unit of humans, principally in adults. In immunocompetent children their presence is rare. The aim of our study is to describe and characterize the demodicidosis in children. Materials and methods: Patients under 15 years old with clinical manifestations suggestive of demodicidosis were selected. Diagnosis was made by quantification of Demodex sp with KOH 30% under light microscopy. Results: We found 17 cases, 16 females, all with typical facial lesions. Only 3 patients presented concomitant immunosuppression. All cases responded to topical 5% permethrin treatment. Conclusion: Infantile demodicidosis can occur in immunocompetents patients, and it diagnosis requires a high index of suspicion. An excellent response with topical 5% permethrin is observed.

Irritability of malaria vector, Anopheles sacharovi to different insecticides in a malaria-prone area

OBJECTIVE@#To determine the susceptibility and irritability level of malaria vector Anopheles sacharovi (An. sachrovi) to different insecticides in a malaria-prone area.@*METHODS@#Susceptibility and irritability levels of field collected strain of An. sacharovi to WHO standard papers of DDT 4%, dieldrin 0.4%, malathion 5%, fenitrothion 1%, permethrin 0.75%, and deltamethrin 0.05% were determined in East Azerbaijan of Iran during reemerging of malaria as described by WHO.@*RESULTS@#Results showed that at the diagnostic dose of insecticides this species exhibited resistance to DDT, tolerant to dieldrin and but somehow susceptible to fenitrothion, malathion, permethrin and deltamethrin. The results of irritability of this species to DDT, lambdacyhalothrin, permethrin cyfluthrin and deltamethrin revealed that DDT had had the most and deltamethrin the least irritancy effect. The average number of take offs/fly/minutes for DDT was 0.8±0.2. The order of irritability for permethrin, lambdacyhalothrin, cyfluthrin and deltamethrin were 0.7±0.2, 0.5±0.2, 0.5±0.3, and 0.2±0.1, respectively.@*CONCLUSIONS@#Results of this study reveals the responsiveness of the main malaria vector to different insecticides. This phenomenon is depending on several factors such as type and background of insecticide used previously, insecticide properties, and physiology of the species. Careful monitoring of insecticide resistance and irritability level of species could provide a clue for appropriate selection of insecticide for malaria control.

Randomized, assessor-blind, controlled clinical trial on the efficacy and safety of aromatic oil (10% eucalyptus oil, 10% lavender oil, 10% rosemary oil) shampoo versus 1% permethrin shampoo in the treatment of pediculosis capitis

BACKGROUND: Permethrin shampoo is currently the first-line treatment for pediculosis capitis. However, its widespread use has resulted in the development of resistance.OBJECTIVE: To compare aromatic oil shampoo and 1% permethrin shampoo in terms of efficacy and safetyMETHOD: One hundred fifty-hour patients with active infestation were treated in this randomized, assessor-blind, controlled trial using aromatic oil or permethrin shampoo, applied once weekly for three weeks. Evaluations were conducted at baseline and a week after shampoo application. Complete cure was defined as the absence of live louse on day 21.RESULTS: There were no significant differences between the two groups in terms of complete cure, changes in patient's quality of life and pruritus at day 21. Neither group reported any diverse effects.CONCLUSION: The efficacy and safety of the aromatic oil shampoo was comparable to that of 1%permethrin shampoo in treating pediculosis capitis.

comparison of efficacy of single topical permethrin and oral ivermectin in the treatment of scabies

Scabies is a common health problem worldwide. Among available topical treatment modalities, 5% permethrin is the most effective scabicide with few side effects. Ivermectin is the only oral scabicide available. It is effective, inexpensive and easy to administer with no known drug interactions and limited side effects. To compare the efficacy of topical permethrin and oral ivermectin in treatment of scabies. In this quasi-experimental study, a total of 120 patients of scabies were enrolled and randomly divided in 2 groups of 60 each. Topical 5% permethrin whole body application for 10-12 hours and oral ivermectin as 200 micro g/kg were used in groups A and B, respectively. In both groups, history, examination and microscopy were carried out at day 0, 7 and day 14. Response to treatment was judged on following parameters: decrease in severity of pruritus, nonappearance of new lesions and absence of burrows. Each parameter was scored and sum total of individual scores was used to determine the efficacy. Mean age in group A [permethrin] was 29.45 +/- 9.72 years and in group B [ivermectin] was 31.45 +/- 12.78 years. In both groups, 66.7% patients showed complete cure. There is no significant difference regarding efficacy of topical permethrin and oral ivermectin when used in treatment of scabies