Therapeutic Approach To Concurrent Pcp And Pulmonary Tb In People Living With Hiv/Aids With Various Drug Hypersensitivity Reactions

Pneumocystis Carinii Pneumonia (PCP) and Pulmonary Tuberculosis (PTB) are the most frequent Opportunistic Infection (OI) in People living with HIV/AIDS (PLWHA), especially whose CD4 counts<200 cells/mL. There is no pathognomonic sign and symptom of pneumocystis, radiographic imaging (chest radiograph) and blood examination. An intractable microorganism cannot be isolated or sustained in culture. The diagnosis of PCP is complicated, based on the presumptive diagnosis. PCP should be treated optimally as soon as possible in order not to be fatal. We report a complicated case of a female 26 y-old, diagnosed with HIV infection on Highly Active Anti Retro Viral Therapy (HAART), PTB on Anti Tuberculosis Drugs (ATD) concurrent with PCP. She also has a history of various Drug Hypersensitivity Reactions (DHR) include Rifampycin, Ciprofloxacin and Cotrimoxazole. DHR is unpredictable, and Clindamycin and Primaquin are the recommended alternative drugs for PCP, the strategic therapy is by Desensitization Protocols.

Effect of body mass index and rocuronium on serum tryptase concentration during volatile general anesthesia: an observational study

OBJECTIVE: Female sex, body mass index (BMI), and neuromuscular blocking agents are risk factors of perioperative hypersensitivity reactions. This study aimed to investigate the effect of rocuronium on serum tryptase concentrations during general anesthesia in overweight and obese women. METHODS: The study was conducted in two groups: Group I (n=66) underwent volatile anesthesia with rocuronium and group II (n=60) underwent volatile anesthesia without any muscle relaxant. Serum tryptase concentration (STC) measurements were performed at baseline (STC 0) and postoperatively (STC 1). ClinicalTrials.gov: NCT04035707 RESULTS: The highest median value of STC 0 was seen in obese patients (3.44 μg L-1) and it was significantly higher than in overweight (p=0.01) and underweight patients (p=0.03). The maximum STC 0 was observed in overweight patients (20.4 μg L-1). In group I, STC 0 in obese patients presented the highest median value (4.49 μg L-1), and was significantly higher than in overweight patients (p=0.03), and had significantly higher STC 1 than patients with normal BMI (p=0.04). STC 0 and STC 1 in overweight and obese female patients did not differ significantly between groups. STC 1 did not correlate with rocuronium doses. In group I, BMI positively correlated with the duration of rocuronium infusion (rho=0.37) and STC 1 positively correlated with BMI (rho=0.32). CONCLUSION: Excess weight and obesity predispose to higher preoperative serum tryptase values. Postoperative STC is not linked to rocuronium doses. BMI is the main determinant factor of STC during combined volatile general anesthesia.

Receptor MrgprX2 nas anafilaxias não alérgicas / MRGPRX2 receptor in non-allergic anaphylaxis

A identificação e descrição das propriedades do receptor MrgprX2 possibilitou maior compreensão das funções dos mastócitos nas reações de hipersensibilidade não alérgicas, assim como em processos inflamatórios e infecciosos. Neste artigo revisamos brevemente as principais funções deste receptor, enfatizando seu papel nas reações de hipersensibilidade a medicamentos, promovendo a desgranulação direta de mastócitos.

The Identification identification of the receptor MRGPRX2 receptor and the description of its properties has improved the knowledge about mast cell actions in non-allergic hypersensitivity reactions, as well as in inflammatory and infectious processes. In this paper we briefly review the main functions of this receptor, highlighting its role in the drug-induced hypersensitivity reactions, with direct degranulation of mast cells.

Anafilaxia por polietilenoglicol em dieta parenteral / Anaphylaxis to polyethylene glycol in a parenteral diet

Os casos de reações de hipersensibilidade à dieta parenteral são muito raros. Determinar o agente etiológico nestes casos não é uma tarefa fácil, pois são muitos os componentes que podem causar a reação, e também por não haver padronização adequada dos testes. Outro problema enfrentado é a dificuldade ao acesso aos elementos da dieta para os testes. Descrevemos um caso clínico e toda a investigação diagnóstica detalhada de anafilaxia por dieta parenteral em um paciente adulto, tendo como principal agente suspeito o polietilenoglicol (PEG). Os polietilenoglicóis, ou macrogóis, compreendem uma família de polímeros hidrofílicos amplamente utilizados em produtos industrializados farmacêuticos, alimentares e cosméticos. Nenhum estudo até agora examinou a prevalência da hipersensibilidade ao PEG, e a ocorrência é provavelmente subestimada. A suspeita de alergia ao PEG deve ser considerada em: pacientes com reações de hipersensibilidade do tipo imediata (RHI) para produtos contendo PEG, nos quais a sensibilização aos ingredientes ativos foi excluída; pacientes com RHI repetidas com medicamentos e produtos não relacionados; e em pacientes com RHI para apenas certas marcas ou doses do mesmo medicamento. RHI aos medicamentos PEGuilados estão bem estabelecidas, porém IgE específica contra o PEG ainda não foi identificada. Este relato mostra que os produtos normalmente considerados como inócuos não devem estar acima de suspeitas durante a investigação alergológica.

Case reporting of hypersensitivity reactions to parenteral diet is rare. Determining the etiologic agent in those cases is not an easy task because many components may cause a reaction and tests are not adequately standardized. Another problem is difficulty in accessing items of the diet for the tests. We describe a clinical case with a detailed diagnostic investigation of anaphylaxis due to parenteral diet in an adult patient, in which polyethylene glycol (PEG) was the main suspected agent. Polyethylene glycols or macrogols comprise a family of hydrophilic polymers widely used in pharmaceutical, food, and cosmetic industry products. No study so far has examined the prevalence of PEG hypersensitivity, and its occurrence is likely to be underestimated. Suspected allergy to PEG should be considered in patients with immediate-type hypersensitivity reactions (HSRs) for PEG-containing products in which sensitization to active ingredients was excluded, patients with recurrent HSRs to unrelated medications and products, and patients with HSRs to certain brands or doses of the same drug. Immediate-type HSRs to PEGylated drugs are well established, but PEG-specific IgE has not yet been identified. This report shows that products normally considered to be innocuous should not be above suspicion during allergy investigation.

A case series of cefixime induced Steven抯 Johnson Syndrome

Drug induced adverse reactions are a major health problem. Drug hyper sensitivity reactions manifest themselves in many diseases, of which some are very severe. The most common allergic reactions occur in the skin. Stevens-Johnson syndrome is mainly caused by drugs (antimicrobials e.g.: penicillin抯, sulphonamides and cephalosporin抯 e.g.: cefixime, antiepileptic抯, NSAIDS), infections and also by other risk factors not yet identified. The most common allergic reactions occur in the skin. These reactions ranging from simple pruritic eruptions to potentially life threatening events are a significant cause of iatrogenic morbidity and mortality. Identification of the cause, withdrawal of the trigger and supportive management is crucial to improve the patient state. Despite of all therapeutic efforts, mortality is high and increases with disease severity, patient抯 age and underlying medical conditions. Survivors may suffer from long-term squeal such as strictures of mucous membranes including severe eye problems.

Hypersensitivity reactions to intravenous ferric carboxymaltose in a patient with iron deficiency anemia: a rare case report

Ferric carboxymaltose (FCM) is a non-dextran iron preparation recently approved in the United States for intravenous treatment of iron deficiency anemia (IDA) in adult patients with intolerance or poor response to oral iron therapy. Acute hypersensitivity reactions (HSRs) during iron infusions are very rare but can be life-threatening. Adverse events, including immune system disorders (0% in FCM) and skin disorders (7.3% in FCM), are less frequently observed with FCM. On treatment with FCM, the change in hemoglobin from baseline to the highest observed level is about 2.8g/dL. Treatment of IDA with FCM resulted in fewer hypersensitivity reactions. Here, authors report a case of a 23 years old female diagnosed for IDA presented with the picture of adverse drug reaction due to injection FCM given by the physician. The patient was managed with Antibiotics, Corticosteroids and Intravenous fluids and recovered well within 12 hours of admission from this adverse drug reaction. Since such cases have been rarely reported, authors are intended to notify about this potentially dangerous drug reaction due to FCM which is used extensively in the treatment of IDA. Hence management of iron infusions requires very careful and precise observation, and, in the event of an adverse reaction, prompt recognition and severity-related interventions by well-trained medical and nursing staff.

Increase of 10% in the rate of adverse drug reactions for each drug administered in hospitalized patients

OBJECTIVE: To assess the risk factors, incidence and severity of adverse drug reactions in in-patients. METHODS: This prospective study evaluated 472 patients treated at a teaching hospital in Brazil between 2010 and 2013 by five medical specialties: Internal Medicine, General Surgery, Geriatrics, Neurology, and Clinical Immunology and Allergy. The following variables were assessed: patient age, gender, comorbidities, family history of hypersensitivity, personal and family history of atopy, number of prescribed drugs before and during hospitalization, hospital diagnoses, days of hospitalization. The patients were visited every other day, and medical records were reviewed by the investigators to detect adverse drug reactions. RESULTS: There were a total of 94 adverse drug reactions in 75 patients. Most reactions were predictable and of moderate severity. The incidence of adverse drug reactions was 16.2%, and the incidence varied, according to the medical specialty; it was higher in Internal Medicine (30%). Antibiotics were the most commonly involved medication. Chronic renal failure, longer hospital stay, greater number of diagnoses and greater number of medications upon admission were risk factors. For each medication introduced during hospitalization, there was a 10% increase in the rate of adverse drug reaction. In the present study, the probability of observing an adverse drug reaction was 1 in 104 patients per day. CONCLUSIONS: Adverse drug reactions are frequent and potentially serious and should be better monitored in patients with chronic renal failure or prolonged hospitalization and especially in those on 'polypharmacy' regimens. The rational use of medications plays an important role in preventing adverse drug reactions.

Coccidioidomycosis: skin manifestations and hypersensitivity syndromes / Coccidioidomicosis: manifestaciones cutáneas y síndromes de hipersensibilidad

Abstract Coccidioidomycosis is caused by Coccidioides immitis and Coccidioides posadasii fungi, which are endemic in certain locations in the American continent. They produce an asymptomatic infection in the majority of the exposed population, and in a lower proportion, a self-limited influenza-like illness, pneumonia or dissemination. Skin compromise could be secondary to the infection by the fungus or by a hypersensitivity reaction to the pulmonary infection. Primary skin compromise produces a chancriform, self-limited lesion, and the dissemination to the skin commonly produces nodules and abscesses, with a tendency to form fistulas. The most common hypersensitivity reaction is erythema nodosum, which is considered a marker of good prognosis. Treatment depends on the localization of the infection, the presence of dissemination, and the clinical conditions of the patient.

Resumen La coccidioidomicosis es causada por los hongos Coccidioides immitis y Coccidioides posadasii, los cuales son endémicos en determinadas localizaciones del continente americano. Producen infección asintomática en la mayoría de expuestos y en menor proporción cuadros gripales autolimitados, neumonía o diseminación. El compromiso en piel puede ser secundario a la infección por el hongo o por una reacción de hipersensibilidad a la infección pulmonar. El compromiso primario en piel produce una lesión chancreiforme, autolimitada y la diseminación a piel produce comúnmente nódulos y abscesos, con tendencia a la fistulización. La reacción de hipersensibilidad más común es el eritema nodoso, considerándose un marcador de buen pronóstico. El tratamiento depende de la localización de la infección, la presencia de diseminación y las condiciones clínicas del paciente.

Reacción liquenoide por enalapril: Reporte de un caso clínico / Enalapril-induced lichenoid reaction: Clinical case report

El enalapril es un medicamento muy utilizado por su efectividad para el tratamiento de la hipertensión arterial; sin embargo, en algunos casos genera como efecto adverso reacciones liquenoides. El cuadro clínico de esta alteración es variado, manifiesta lesiones similares al liquen plano en piel y/o en mucosa bucal, resultado de una reacción de hipersensibilidad de un organismo susceptible a este medicamento. Presentamos el caso de un paciente femenino de 49 años de edad, quien refiere sangrado gingival espontáneo y al cepillado dental, dolor y ardor con alimentos ácidos, calientes y picantes desde hace tres años, multitratada con antibióticos y antimicóticos sin mejorar la sintomatología. Se diagnostica interdisciplinariamente por el Servicio de Periodoncia, Patología Bucal y Dermatología. El tratamiento bucal consistió en la enseñanza de una correcta higiene bucal junto con terapia corticoidea tópica y cambio del medicamento que provocó las lesiones.

Enalapril is a drug widely used due to its effectiveness in the treatment of blood hypertension cases, nevertheless, it occasionally generates lichenoid reactions as negative effect. The clinical picture of this alteration can be varied, in the skin and/or oral mucosae, it can induce lesions similar to those of lichen planus. These lesions could be the result of hypersensitivity reactions of a body which is susceptible to this drug. The present article documents the case of a 49 year old female patient, who sought consultation due to spontaneous gingival bleeding, bleeding caused by dental brushing, pain, and burning sensation with acid, hot or spicy foods. The condition had been present for the last three years. The patient had been repeatedly treated with antibiotics and antifungal drugs; nevertheless, these treatments proved to be unsuccessful. Oral Pathology, Dermatology and Periodontics Departments emitted a multi-disciplinary diagnosis. Oral treatment consisted of teaching appropriate oral hygiene techniques along with topical corticoid therapy, and substitution of the drug which induced the lesions.

Penicillin induced toxic epidermal necrolysis with secondary impetiginization: a rare case.

Drug induced allergic reactions can be categorized into IgE-mediated and non-IgE mediated hypersensitivity reactions. Symptoms of IgE-mediated reactions are angioedema, bronchospasm, anaphylaxis, and urticaria that appears within 72 hours and those which are Non-IgE mediated hypersensitivity reactions include morbilliform eruptions, interstitial nephritis, hemolytic anemia, serum sickness, thrombocytopenia, and erythema multiforme, after 72 hours. TEN is defined as an extensive detachment of full-thickness epidermis most often related to an adverse drug reaction. We report a rare case of penicillin induced toxic epidermal necrolysis with Secondary Impetigination in a 38-year-old male patient with complaints of rashes all over the body, chest pain and dry tongue since seven days. Based on history and clinical examination patient was diagnosed as of penicillin induced toxic epidermal necrolysis with secondary impetigination and was successfully treated with antihistamines, parenteral antibiotics and corticosteroids.

Complement activation-related pseudoallergy in dogs following intravenous administration of a liposomal formulation of meglumine antimoniate / Pseudoalergia relacionada à ativação do complemento em cães após administração intravenosa de uma formulação lipossomal de antimoniato de meglumina

The increasing use of nanotechnologies in advanced therapies has allowed the observation of specific adverse reactions related to nanostructures. The toxicity of a novel liposome formulation of meglumine antimoniate in dogs with visceral leishmaniasis after single dose has been investigated. Groups of 12 animals received by the intravenous route a single dose of liposomal meglumine antimoniate (group I [GI], 6.5 mg Sb/kg), empty liposomes (GII) or isotonic saline (GIII). Evaluation of hematological and biochemical parameters showed no significant changes 4 days after administration. No undesired effects were registered in the GIII. However, adverse reactions were observed in 67.7% of dogs from both groups that received liposomal formulations. The side effects began moments after bolus administration and disappeared during the first 15 minutes after treatment. Prostation, sialorrhea and defecation were the most frequent clinical signs, registered in 33.3% and 41.6 % of animals from the groups GI and GII, respectively. Tachypnea, mydriasis, miosis, vomiting and cyanosis were also registered in both groups. The adverse reactions observed in this study were attributed to the activation of the complement system by lipid vesicles in a phenomenon known as Complement Activation-Related Pseudoallergy (CARPA). The influence of the physical-chemical characteristics of liposomal formulation in the triggering of CARPA is discussed.

O crescente uso das nanotecnologias nas terapias avançadas tem permitido a observação de reações adversas específicas relacionadas às nanoestruturas. A toxicidade de uma nova formulação lipossomal de antimoniato de meglumina após dose única foi avaliada em cães com leishmaniose visceral. Grupos de 12 animais receberam por via intravenosa uma dose única de antimoniato de meglumina lipossomal (grupo I [GI], 6,5 mg Sb/kg), lipossomas vazios (GII) ou solução salina isotônica (GIII). A avaliação de parâmetros hematológicos e bioquímicos não revelou alterações significativas quatro dias após a administração. Nenhum efeito indesejável foi registrado no GIII. No entanto, reações adversas foram observadas em 67,7% dos cães de ambos os grupos que receberam formulações lipossomais. Os efeitos colaterais iniciaram momentos após a administração em "bolus" e desapareceram no decurso dos primeiros 15 minutos após o tratamento. Prostração, sialorréia e defecação foram os sinais clínicos mais frequentes, registrados em 33,3% e 41,6% dos animais dos grupos GI e GII, respectivamente. Taquipnéia, midríase, miose, vômitos e cianose também foram registrados em ambos os grupos. As reações adversas observadas neste trabalho foram atribuídas à ativação do sistema complemento pelas vesículas lipídicas em fenômeno conhecido como Pseudoalergia Relacionada à Ativação do Complemento (PARAC). A influência das características físico-químicas da formulação lipossomal no desencadeamento de PARAC é abordada.

Hipersensibilidade a inalantes e alimentos nos distúrbios do equilíbrio corporal / Hypersensitivity to inhalants and foods in corporal equilibrium disturbs

Introdução: O saco endolinfático tem sido apontado como o alvo das reações imuno-alérgicas da orelha interna. A prevalência de alergia em pacientes com Doença de Ménière foi estabelecida em torno de 41,6% para inalantes e 26,6% para alimentos, por Derebery em 2000, dados aumentados em relação à prevalência de alergia na população em geral, que, no Brasil, varia de 9% a 30% para inalantes e de 1% a 3% para alimentos. Objetivos: Avaliar a prevalência de reações de hipersensibilidade tipo I a inalantes e alimentos na população do setor de Otoneurologia do Hospital das Clínicas da Faculdade de Medicina de São Paulo e descrever os sintomas vestibulares dos pacientes. Casuística e método: Setenta e cinco pacientes com distúrbios do equilíbrio de origem periférica foram submetidos a questionário de caracterização clínica de sintomas cócleo-vestibulares e teste cutâneo (prick test) para 13 inalantes e 5 alimentos. Resultados: Vinte e cinco (33,3%) pacientes apresentaram prick test positivo a pelo menos um alérgeno inalante e 6 (8%) a pelo menos um alérgeno alimentar. Quatro pacientes apresentaram prick test positivo na ausência de sintomas alérgicos. Prevaleceu a queixa de tontura de caráter rotatório em proporções semelhantes entre os pacientes com prick test positivo e negativo. Conclusão: A prevalência de reações de hipersensibilidade tipo I a inalantes e a alimentos na população avaliada foi maior do que na população em geral. Os sintomas vestibulares não diferiram entre os pacientes da amostra, com prick test positivo ou negativo. No entanto, deve-se obter maior número de amostra para que os dados sejam confiáveis.

Introduction: The endolymphatic sac has been pointed out as the target of immuno-allergic reactions in the inner ear. The prevalence of allergy in patients with Ménières disease was established as approximately 41,6% for inhalants and 26,6% for food by Derebery in 2000, an increase in the data in relation to that of the prevalence of allergy in the general population, which in Brazil varies from 9% to 30% for inhalants and from 1% to 3% for food. Objectives: To evaluate the prevalence of reactions to type I hypersensitivity to inhalants and food in the population of the Otoneurological Section of the Clinics Hospital of the University of São Paulo Medicine School and to describe the vestibular symptoms of the patients. Method: Seventy-five patients with peripheral equilibrium disturbances who had answered a questionnaire of clinical characterization regarding cochlear-vestibular symptoms and undergone prick test for 13 inhalants and 5 types of food. Results: Twenty-five (33,3%) of the patients were positive for the prick test and for at least one allergen inhalant and 6 (8%) for at least one food allergen. Four patients were positive for the prick test in the absence of allergy symptoms. There was a prevalence of the complaint of rotatory dizziness in similar proportions among the patients with positive and negative prick test. Conclusion: The presence of type I hypersensitivity reactions to inhalants and food in the population evaluated was greater than in the general population. The vestibular symptoms did not differ among the patients in the sample, neither with positive or negative prick test results. However, a sample of greater number should be obtained for a higher confidence level of data results.

Conjuntivitis alérgica / Allergic conjunctivitis

La conjuntivitis alérgica es una de las causas más comunes de consulta externa en oftalmología y tiene una muy alta relación con las reacciones alérgicas sistémicas. La fisiopatología de las reacciones de hipersensibilidad nos hace entender los cuadros clínicos característicos de esta patología y sus diferentes grados de severidad. El diagnostico diferencial es amplio, sin embargo hay claves diagnosticas que nos orientan rápidamente al diagnostico correcto. El tratamiento se enfoca en las medidas farmacológicas y no farmacológicas, utilizándolas en conjunto para disminuir la recurrencia del cuadro y prevenir secuelas visuales.

Ocular allergies are the one of the most common pathologies in ophthalmology and have high association with systemic allergic reactions. The physiopathology of the hypersensitivity reactions make us understand the different manifestations and severity of this pathology. Differential diagnosis is wide but many diagnostic clues guide us quickly to the right disease. Treatment basis are pharmacological and non pharmacological, using them together to prevent relapses and visual sequelae.