Efectos extrapiramidales por metoclopramida en embarazo y recién nacido / Extrapyramidal effects for metoclopramide in pregnancy and newborn

Las náuseas y la emesis son complicaciones posoperatorias que pueden derivar en bronco aspiración, una situación clínica potencialmente fatal. Para su prevención, se usan medicamentos como la metoclopramida. Se presenta un reporte de caso de extrapiramidalismo por metoclopramida en el recién nacido y la madre. Es una reacción secundaria a un medicamento, clasificada como un evento serio y definitivo, de tipo A. Se requiere considerar el balance entre riesgo y beneficio de este medicamento en este tipo de condiciones, como también considerar otras medidas que eviten estos casos. El reporte de reacciones adversas a medicamentos es una actividad que contribuye al uso seguro de los medicamentos.

Postoperative nauseas and vomiting are complications that can lead to bronchoaspiration, a potentially fatal clinical event. Medications such as metoclopramide are used to prevent them. A case report of extrapyramidal signs in a newborn and mother metoclopramide is presented. It has been classified as a serious drug reaction, type A. The risk-benefit balance of this drug in such conditions should be considered as well as other measures to prevent such events. The reporting of adverse drug reactions is an activity that contributes to the safe use of medicines.

Cognitive Dysfunction in Drug-induced Parkinsonism Caused by Prokinetics and Antiemetics

The use of prokinetics/antiemetics is one of the leading causes of drug-induced parkinsonism (DIP) observed in neurology clinics. Cognitive dysfunction in DIP has recently been recognized, but pathologies related with cognitive dysfunction is unknown. Among our retrospective cohort of 385 consecutive parkinsonian patients enrolled in our parkinsonism registry, 14 patients were identified who satisfied our inclusion criteria: parkinsonism caused by prokinetics/antiemetics, existing T1-weighted 3D volumetric MR images, and normal [18F]-N-3-fluoropropyl-2-beta-carboxymethoxy-3-beta-(4-iodophenyl) nortropane PET scan images. For the comparison of volumetric MR data, 30 age- and sex-matched healthy individuals were included in this study. Among 14 patients with DIP, 4 patients were diagnosed with dementia, and all other patients had mild cognitive impairment (MCI). Comparisons of MR volumetric data between DIP patients with MCI and controls show that cortical gray matter volumes are reduced bilaterally in DIP (P=0.041) without changes in either total white matter volume or total intracranial volume. Among subcortical structures, the volume of the right hippocampus is reduced in DIP patients compared with controls (P=0.011, uncorrected). In DIP, cortical thickness is reduced in the bilateral lingual (P=0.002), right fusiform (P=0.032) and part of the left lateral occipital gyri (P=0.007). Our results suggests that cognitive dysfunction in DIP caused by prokinetics/antiemetics is common. Structural changes in the brain by 3D MRI may be associated with cognitive decline in DIP.

Carbamazepine for prevention of chemotherapy-induced nausea and vomiting: a pilot study / Carbamazepina para prevenção de náusea e vômito induzidos por quimioterapia: um estudo piloto

CONTEXT AND OBJECTIVE: Nausea and vomiting are major inconveniences for patients undergoing chemotherapy. Despite standard preventive treatment, chemotherapy-induced nausea and vomiting (CINV) still occurs in approximately 50% of these patients. In an attempt to optimize this treatment, we evaluated the possible effects of carbamazepine for prevention of CINV. DESIGN AND LOCATION: Prospective nonrandomized open-label phase II study carried out at a Brazilian public oncology service. METHODS: Patients allocated for their first cycle of highly emetogenic chemotherapy were continuously recruited. In addition to standard antiemetic protocol that was made available, they received carbamazepine orally, with staggered doses, from the third day before until the fifth day after chemotherapy. Considering the sparseness of evidence about the efficacy of anticonvulsants for CINV prevention, we used Simon's two-stage design, in which 43 patients should be included unless overall complete prevention was not achieved in 9 out of the first 15 entries. The Functional Living Index-Emesis questionnaire was used to measure the impact on quality of life. RESULTS: None of the ten patients (0%) presented overall complete prevention. In three cases, carbamazepine therapy was withdrawn because of somnolence and vomiting before chemotherapy. Seven were able to take the medication for the entire period and none were responsive, so the study was closed. There was no impact on the patients' quality of life. CONCLUSION: Carbamazepine was not effective for prevention of CINV and also had a deleterious side-effect profile in this population. .

CONTEXTO E OBJETIVO: Náusea e vômito são inconvenientes importantes para pacientes submetidos a quimioterapia. A despeito do tratamento preventivo padrão, náuseas e vômitos induzidos por quimioterapia (NVIQ) ocorrem em aproximadamente 50% dos pacientes. Na tentativa de otimizar este tratamento, avaliamos os possíveis efeitos da carbamazepina na prevenção de náuseas e vômitos induzidos por quimioterapia. TIPO DE ESTUDO E LOCAL: Estudo fase II, prospectivo, não randomizado, aberto, realizado em um serviço público brasileiro de oncologia. MÉTODOS: Recrutaram-se continuamente pacientes alocados para o primeiro ciclo de quimioterapia altamente emetogênica. Além do protocolo anti-emético padrão disponibilizado, os pacientes receberam carbamazepina, por via oral, em doses escalonadas, a partir do terceiro dia anterior até o quinto dia após a quimioterapia. Dada a escassa evidência de eficácia dos anticonvulsivantes na prevenção de NVIQ, adotamos o desenho de Simon em duas fases, que deveria incluir 43 pacientes a não ser que prevenção completa global não fosse alcançada em 9 dos primeiros 15 participantes. O questionário "Functional Living Index-Emesis" foi usado para avaliar o impacto na qualidade da vida. RESULTADOS: Nenhum dos 10 pacientes (0%) apresentou prevenção completa global. Três tiveram a carbamazepina suspensa por sonolência e vômito antes da quimioterapia. Sete foram capazes de tomar a medicação por todo o período proposto e nenhum obteve resposta, sendo então interrompido o estudo. Não houve impacto na qualidade da vida. CONCLUSÃO: Carbamazepina não foi efetiva para prevenção de NVIQ e apresentou perfil deletério de efeitos adversos nesta população. .

Dexametasona para profilaxis de náuseas y vómitos postoperatorios: efecto sobre la glicemia en pacientes con diabetes mellitus tipo 2 y en no diabéticos sometidos a cirugía laparoscópica / Effects on blood glucose of prophylactic dexamethasone for postoperative nausea and vomiting in diabetics and non-diabetics

Background: Postoperative nausea and vomiting (PONV) prophylaxis with dexamethasone may produce significant hyperglycemia in the postoperative period. Aim: To evaluate if this effect is of greater severity in type 2 diabetics compared with non-diabetic patients. Material and Methods: Forty non-diabetic and thirty type 2 diabetic patients undergoing laparoscopic cholecystectomy were studied in a prospective and double-blind fashion manner. Patients were randomly distributed into 4 groups: Group I, non-diabetics control (n = 20), Group II, non-diabetics dexamethasone (n = 20), Group III, type 2 diabetics control (n = 15), and Group I V, type 2 diabetics dexamethasone (n = 15). Immediately after induction, patients in groups I and III received isotonic saline and patients in the dexamethasone groups received 8 mg iv of the steroid. Capillary blood glucose concentrations were measured at baseline and every 2 hours during the first 12 hours since the start of surgery. A linear mixed effect model, adjusted for baseline capillary glucose concentration, age and duration of surgery was used to analyze the data. Results: No effect of the presence of diabetes mellitus was observed in the evolution of glucose concentrations. There was a difference in capillary glucose concentrations between patients who received dexamethasone and placebo that started 2 hours post-intervention, reaching a mean maximum difference of 34 mg/dl (adjusted model, p < 0.001) at 10 hours post-intervention. Conclusions: In this study, Type 2 diabetic patients did not show a higher susceptibility than non-diabetics to develop postoperative hyperglycemia after the use of prophylactic dexamethasone for PONV.

Distonia aguda relacionada ao uso de bromoprida em pacientes pediátricos / Acute dystonia after use of bromopride in pediatric patients

OBJETIVO: Descrever dois casos de distonia aguda após uso de bromoprida em crianças e realizar revisão da literatura em relação aos mecanismos fisiopatológicos de indução de liberação extrapiramidal, sua sintomatologia e tratamento. DESCRIÇÃO DO CASO: Caso 1: adolescente de 13 anos com quadro de dor e hipertonia cervical associados a febre, náuseas e vômitos, com hipótese inicial de meningite. A investigação subsequente revelou que o quadro iniciou-se após ingestão de uma única dose de bromoprida. O paciente apresentou boa resposta ao tratamento com difenidramina, sem necessidade de coleta de líquor. Caso 2: Lactente de seis meses que desenvolveu sintomas graves de liberação extrapiramidal relacionados à superdosagem de bromoprida, com reversão rápida dos sintomas após administração de biperideno. COMETÁRIOS: Este é o primeiro relato de distonia aguda após uso de bromoprida em crianças. Embora muito utilizada no Brasil como agente pró-cinético e antiemético, nenhum estudo clínico até o momento demonstrou melhor perfil de segurança da bromoprida em relação aos demais antieméticos antagonistas da dopamina. Até que tais estudos sejam realizados, sugere-se cautela na prescrição de bromoprida. Medidas não-farmacológicas devem ser recomendadas no tratamento de vômitos e da doença do refluxo gastresofágico. Quando o tratamento farmacológico for indispensável, deve-se dar preferência a drogas com perfil de segurança mais bem estabelecido.

OBJECTIVE: To report the case of two patients with acute dystonia induced by bromopride in children, followed by a review of the mechanisms of induction of movement disorders by antidopaminergic anti-emetic drugs, its clinical symptoms and treatment. CASE DESCRIPTION: Case 1: a 13 years old teenager who developed acute hypertonia and neck pain associated to fever and vomiting, suggestive of meningitis. Further investigation revealed that symptoms were associated with the ingestion of a single dose of bromopride. The symptoms stopped after administration of diphenidramine, preventing a spinal tap. Case 2: six months old infant who developed extrapyramidal movement disorder related to bromopride overdose, with prompt resolution of symptoms after treatment with biperiden. COMMENTS: This seems to be the first report of acute dystonia after the use of bromopride in children. Although frequently used in Brazil as an anti-emetic and prokynetic agent, no clinical study has showed that bromopride has a better safety profile than other antidopaminergic anti-emetic drugs. While such studies are not available, caution is needed in the context of pediatric prescription of bromopride. Non pharmacological measures should be adopted in the management of vomiting and gastroesophageal reflux. If medical treatment cannot be avoided, one would rather use medications with a better established safety profile.

Fármacos antieméticos / Antivomiting drugs

En este artículo se presentan los diferentes fármacos utilizados para el tratamiento de las náuseas y vómitos. Se describen sus modos de acción, sus efectos adversos y las precauciones y advertencias de su uso.

Excessive crying and irritability in infants due to drugs

This study was performed to see the extent and magnitude of drug induced excessive crying in infants and to know the causative drugs, from July 2005 to June 2006. It is a prospective and descriptive study. All children under 1 year of age, who presented with excessive crying of recent onset as the main complaint and were receiving some medicines were included in the study. After getting detailed history [particularly drug history], the problem was explained to the parents, the suspected drug was stopped and the patients were called back for follow up after 48-96 hours. If the crying had not stopped, the diagnosis was reconsidered and patient was excluded from study analysis. If the crying had stopped, it was assumed that the drug was the cause of excessive crying. All the included patients were studied for age, diagnosis, month of the year, geographical origin and the causative drugs. A total of 227 patients were included in the analysis; out of this, 44 [19.38%] were less than imonth of age while 183 patients [80.62%] were above 1 month, 143 patients were suffering from upper respiratory infection and 78 from wheezy chest. Majority of the patients presented during winter months. About 3/4th of the patients were from D. I. Khan district but the remaining 1/4th were from nearby and remote districts like Mianwali and Layyah. Most frequent causative drug was Rondec-D drops [Abbot] in 13o patients. Other drugs were various cough preparations, promethazine [Phenergan], brochodilators, anti-emetics, metronidazole, anti-histamines, various herbal preparations, phenolbarbitone and various anti-diarrhoeals in a decreasing order of frequency. This problem can be reduced by avoiding these medicines in below 1-2 years of age. It is therefore recommended that these above drugs should not be promoted for use in infants and Rondec-D drops and other similar preparations may be withdrawn from the market

Acatisia inducida por tietilperazina en paciente embarazada / Akathisia induced by thiethylperazine in a pregnant patient

La acatisia es un efecto lateral neurológico agudo común a diversos fármacos que actúan a nivel dopaminérgico, su manifestación fundamental es la inquietud psicomotora, es importante diagnosticar y tratar precozmente este síndrome. Tietilperazina es una fenotiazina cuyo efecto antiemético es usado en diversas circunstancias clínicas, presentamos el caso de una paciente hospitalizada por hiperemesis gravídica que es derivada a psiquiatría por la presencia de síntomas aparentemente ansiosos. El examen clínico permite sospechar acatisia por Tietilperazina Torecan®, el cuadro cede completamente con la suspensión del fármaco. Nos parece interesante comunicar este caso por la implicancia para los especialistas.

Akatisia is an common neurological complication of treatment with dopaminergic drugs, subjetive feeling of restlessness is their main symptom, it's important to recognize this syndrome early and to treat immediately. Thietylperazine is an phenothiazine drug with antiemetic effect used for medical practice, we present a case of 35 years old pregnancy inpatient referred to psychiatrist for anxiety, the diagnosis was akatisia induced by thietylperazide.

Dispepsia funcional / Functional dyspepsia

As micoses superficisis säo as infecçöes mais comuns do tegumento cutâneo, envolvendo as partes queratinizadas, semiqueratinizadas, mucosas e os anexos pêlos e unhas.(au)

Antieméticos como indutores de ataques de pânico / Panic attack induced by antiemetic drugs

Os autores relatam dois casos de ataques de pänico induzidos por medicamentos antieméticos. Ao revisarem a literatura internacional näo encontraram achado semelhante ao lado de inúmeros medicamentos e substâncias mencionadas como panicogênicas.Igualmente, näo encontraram nas reaçöes adversas das drogas antieméticas a descriçäo da possibilidade de produçäo de sintomas dessa síndrome. Os autores realçam a importância desse achado clínico em benefício de outros pacientes que possam desenvolver tais sintomas de pânico associados aao uso de antieméticos. Discutem ainda as possibilidades fisiopatológicas para explicar a açäo panicogênica de substäncias empregadas para provocar ataques de pânico experimentalmente e de mmuitas outras capazes de promover sintomas semelhantes quando utilizadas na clínica médica

Pharmacological interactions between ondansetron, an antiemetic drug, and some neuromuscular blockers, succinyl-choline, mivacurium and atracurium

This study was designed to evaluate the effect of the antiemetic ondansetron [5-hydroxytryptamine subtype 3 receptor antagonist] on the onset, potency and recovery rate of succinylcholine, mivacurium and atracurium induced neuromuscular blocking effect both in vitro and in vivo experiments. The study showed that ondansetron should be administered cautiously to the patients using the muscle relaxants [succinylcholine, mivacurium and atracurium] to protect against its initial depolarizing effect and the possible interference with the potency and the rate of recovery of muscle relaxation during surgical procedures

Cinarizina e as labirintopatias / Cinnarizine and labyrinth diseases

Uma revisäo dos resultados de vßrios estudos clÝnicos com a cinarizina no tratamento de diversos distúrbios vestibulares Ú apresentada. De acordo com estes resultados clÝnicos, o uso adequado de cinarizina Ú um procedimento terapÛutico seguro e muito eficaz na remissÒo da vertigem e outros tipos de tontura de variada etiologia e de origem vestibular perifÚrica ou central.

Preliminary experience with use of a selective 5HT3 receptor antagonist (ondansetron) to prevent high dose chemotherapy induced emesis.

Ondansetron was used as an antiemetic along with dexamethasone during 16 cycles of highly or moderately ematogenic chemotherapy. There was major control in two cycles and complete control in the remaining 14. Side effects were minor and did not require discontinuation of the drug. This combination, therefore, appears to be safe and effective in preventing chemotherapy induced emesis.

Efeitos do etanol, benzodiazepínicos e antieméticos na gravidez / Effects of ethanol, benzodiazepines and antiemetic drugs in pregnancy

Os autores apresentam uma revisäo sobre o uso do etanol, benzodiazepínicos e antieméticos durante a gravidez e discutem os possiveis efeitos adversos sobre o feto