Fever Cases Associated with Plasmodium falciparum Malaria Infection among Children Attending a Tertiary Health Facility in Imo State, Nigeria

Background:Malaria is a major cause of fever in endemic countries, although the prevalence of malaria has been declining across Sub-Saharan Africa, the proportion of clinical presentation attributable to febrile illness due to malariato febrile illnesses have remained high. It is therefore important to determine the proportion of fever cases attributable to malaria.Methods:A descriptive cross sectional study was conducted among children aged 1-72 monthspresenting at a tertiary facility in Imo state Nigeria from 1st March, 2014 to 31st October, 2015. Children between 1-72months of age with documented fever at presentation or history of fever in the last 24 hours without signs of severe malaria and thosewithout any history of anti-malarial drugs administration were considered eligible. Fever was regarded as axillary temperature of ≥37.5°C. For all subjects (febrile and afebrile), the presence of Plasmodium falciparum was assessed microscopically by a WHOCertified malaria microscopist. Malaria parasite density was grouped as 1-1000,1001–10000, and >10,000 parasites/μlrespectively according to World Health Organization guidelines for grouping malaria parasitamae while data was analysed using SPSS 20.1v.Results:Overall malaria prevalence of both febrile and afebrile at point of assessment but with history of fever in the last 24 hours was 24.3%. Prevalence by microscopy was 26% among the 289 children who were febrile as at point of examination.There was no significant difference (p>0.05) between malaria prevalence in males as against females. Age group 49-72 months had the highest prevalence (42.6%), while age groups 25-48 and 1-24 months recorded prevalence of 35.7% and 25%, respectively(P<0.05). About 22.5% of afebrile patients had positive Plasmodium parasitaemia. The Geo-mean (range) of parasitaemia was 1427(8-180,000) parasite/μl while mean body temperature ± SD was 37.0±0.9°C. About 8% of the children had high parasite density.Conclusion:Plasmodium falciparum although linked with majority of fever is not the cause of fever in all instances. Healthcare providers should make more effort to correctly diagnose non-malaria febrile cases so as to optimize clinical outcomes for the patients and minimize possible over diagnosis and overtreatment of malaria.

Generalidades de un paciente afebril con hepatoesplenomegalia en pediatría / Overview of an afebrile patient with hepatosplenomegaly in pediatrics

Introducción: La hepatoesplenomegalia es el agrandamiento simultaneo del hígado y del bazo, aunque es frecuente en edad pediátrica su literatura se centra en causa infecciosa, siendo también importante otras causas sobre todo en el paciente afebril Método: revisión de literatura actual confrontando con artículos de revisiones de temas en búsqueda electrónica en bases de datos de RIMA, MEDLINE, PUB-MED, MEDSCAPE, de 1981 a 2018. Resultados: La hepatomegalia en paciente afebril se puede encontrar en afectación sistémica o enfermedades hereditarias, algunas prevalentes o extremadamente raras, por lo cual se desarrolló esta revisión para agrupar las causas de esta en un paciente pediátrico afebril.

Introduction: Hepatosplenomegaly is the simultaneous enlargement of the liver and spleen, although it is frequent in pediatric age, its literature focuses on an infectious cause, and other causes are important, especially in the afebrile patient. Method: review of current literature comparing articles from subject reviews. in electronic search in RIMA, MEDLINE, PUB-MED, MEDSCAPE databases, from 1981 to 2018. Results: Hepatomegaly in afebrile patient can be found in systemic involvement or hereditary diseases, some prevalent or extremely rare, for which reason developed this review to group the causes of this in an afebrile pediatric patient.

Scrub typhus presenting without fever

Scrub typhus may be a very a familiar reason for an acute undifferentiated fever. Although there has been an improvement in the diagnostics as well as an increased awareness regarding this disease, it still remains belatedly diagnosed and eventually turns fatal. We present a male patient who was brought to us with jaundice, tender hepatomegaly and distinctly no history fever who turned out to have a Scrub typhus infection and was salvaged owing to a diverse empirical antibiotic coverage. This represents an atypical clinical presentation of a very familiar infection: Tropical rickettsioses infection presenting with afebrile jaundice in an immunocompetent patient. It also brings into perspective the wavered nature of its disease presentation, the significant merit of procuring a good patient history and a change in empirical antibiotic policies especially in areas endemic for scrub typhus

Asociación entre rotavirus y síndrome convulsivo febril y afebril / Relationship between rotavirus and convulsive syndrome febrile and afebril

El Rotavirus es causa habitual de diarrea grave en niños pequeños a nivel mundial. Las manifestaciones clínicas incluyen: diarrea líquida, fiebre, y vómitos, llevando a estados de deshidratación y típica gastroenteritis; además pueden presentar múltiples complicaciones neurológicas, como convulsiones febriles o afebriles. La prevalencia real de estas convulsiones oscilaría entre el 2 y 6%. La fisiopatología de las mismas es aún incierta, pero se han propuesto teorías que intentan explicar un posible mecanismo, entre las que estarían involucrados factores genéticos, raciales, distribución de serotipos, factores pro-convulsivos e incluso alteraciones de la barrera hematoencefálica. Si bien este es un síndrome cuya etiología no es única, se tomará en cuenta la infección por rotavirus ya que este se ha identificado con mayor frecuencia, sobre todo en pacientes afebriles, evitando así procedimientos e intervenciones innecesarias para su diagnóstico.

The Rotavirus is common cause of severe diarrhea in young children worldwide. Clinical manifestations include: liquid diarrhea, fever, and vomiting, leading to states of dehydration and typical gastroenteritis; In addition, they may present multiple neurological complications, such as febrile seizures or afebrile seizures. The actual prevalence of these seizures would range between 2 and 6%. Their pathophysiology is still uncertain, but theories have been proposed that try to explain a possible mechanism, including genetic factors, racial, serotype distribution, pro-convulsive factors and even alterations of the blood-brain barrier. Although this is a syndrome whose etiology is not unique, rotavirus infection will be taken into account since it has been identified more frequently, especially in afebrile patients, thus avoiding unnecessary procedures and interventions for its diagnosis.

Neurocysticercoiis in children presenting with febrile seizure: clinical profiile, imaging and serodiagnosis / Neurocisticercose em crianças apresentando crises afebris: perfil clínico, imagem e sorodiagnóstico

Neurocysticercosis (NCC) is one of the major causes of childhood seizures in developing countries including India and Latin America. In this study neurological pediatric cases presenting with afebrile seizures were screened for anti-Cysticercus antibodies (IgG) in their sera in order to estimate the possible burden of cysticercal etiology. The study included a total of 61 pediatric afebrile seizure subjects (aged one to 15 years old); there was a male predominance. All the sera were tested using a pre-evaluated commercially procured IgG-ELISA kit (UB-Magiwell Cysticercosis Kit ™). Anti-Cysticercus antibody in serum was positive in 23 of 61 (37.7%) cases. The majority of cases with a positive ELISA test presented with generalized seizure (52.17%), followed by complex partial seizure (26.08%), and simple partial seizure (21.73%). Headaches were the major complaint (73.91%). Other presentations were vomiting (47.82%), pallor (34.78%), altered sensorium (26.08%), and muscle weakness (13.04%). There was one hemiparesis case diagnosed to be NCC. In this study one child without any significant findings on imaging was also found to be positive by serology. There was a statistically significant association found between the cases with multiple lesions on the brain and the ELISA-positivity (p = 0.017). Overall positivity of the ELISA showed a potential cysticercal etiology. Hence, neurocysticercosis should be suspected in every child presenting with afebrile seizure especially with a radio-imaging supportive diagnosis in tropical developing countries or areas endemic for taeniasis/cysticercosis.

Neurocisticercose é uma das causas mais comuns de crises em crianças em países em desenvolvimento incluindo Índia e América Latina. Neste estudo casos neurológicos pediátricos, apresentando crises afebris foram selecionados através de anticorpos anti-Cysticercus (IgG) no seu soro para avaliar possível etiologia de Cysticercus. O estudo incluiu total de 61 casos pediátricos de indivíduos com crises afebris (idade de um a 15 anos); houve predominância de pacientes do sexo masculino. Todos os soros foram testados usando um kit comercial IgG-ELISA (UB-Magiwell Cysticercosis kit™) avaliado previamente. O anticorpo anti-Cysticercus no soro foi positivo em 23 de 61 casos (37,7%). A maioria dos casos com teste de ELISA positivo apresentava crises generalizadas (52,17%), seguida por casos de crises parciais complexas (26,08%) e crises parciais simples (21,73%). Dores de cabeça foram a queixa principal (73,91%). Outras manifestações foram vômitos (47,82%), palidez (34,78%), sensório alterado (26,08%) e fraqueza muscular (13,04%). Houve um caso de hemiparesia diagnosticado como NCC. Neste estudo uma criança sem quaisquer achados significantes às imagens apresentou sorologia positiva. Houve associação estatística significante entre os casos com múltiplas lesões no cérebro e a positividade pelo ELISA (p = 0,017). No seu conjunto a positividade pelo ELISA demonstra etiologia potencial para a cisticercose. Portanto neurocisticercose deve ser suspeitada em qualquer criança apresentado crises afebris com imagem que sugira diagnóstico em países tropicais em desenvolvimento ou em áreas endêmicas para teníase/cisticercose.

Visceral Leishmaniasis without Fever in an 11-Month-Old Infant: a Rare Clinical Feature of Kala-azar

Visceral leishmaniasis or kala-azar is an endemic parasitic disease in some parts of the world which is characterized by fever, splenomegaly, and pancytopenia in most of the cases. Herein we report an 11 month-old male infant with diagnosis of kala-azar who presented with pallor, hepatosplenomegaly, failure to gain weight, and no history of fever. Surprisingly, fever started after beginning of meglumine antimoniate treatment in this patient. As far as we are aware of, this is a rare presentation of visceral leishmaniasis. Therefore, clinicians especially in endemic areas are highly recommended to include kala-azar among differential diagnosis of unexplained anemia without fever to prevent misdiagnosis of this potentially fatal, but treatable condition.

Una causa infrecuente de convulsión afebril: gastroenteritis por rotavirus / A rare cause of afebrile convulsion: rotavirus gastroenteritis

La gastroenteritis por rotavirus es la más frecuente de las diarreas infecciosas y ocasiona una importante morbimortalidad en los niños pequeños, además de deshidratación grave y desequilibrios electrolíticos; los signos extraintestinales son infrecuentes. Recientemente se han comunicado convulsiones afebriles asociadas con gastroenteritis por rotavirus, sin encefalopatía, deshidratación, desequilibrio electrolítico o hipoglucemia. Comunicamos el caso de un paciente con convulsiones durante una gastroenteritis por rotavirus, una infección habitual en nuestro país (Turquía), con diversas manifestaciones clínicas, entre ellas, las convulsiones, que pueden verse no sólo en los niños con enfermedades neurológicas o sistémicas sino también en los niños sanos.

Rotavirus is the most common infectious diarrhea that causes important mortality and morbidities in small children, severe dehydration and electrolyte imbalance. Extraintestinal signs are rare in rotavirus infections. Recently, afebrile seizures associated with rotavirus gastroenteritis but without encephalopathy, dehydration, electrolyte imbalance or hypoglycemia have being reported. In this article, the fact that rotavirus, which is seen commonly in our country, can be confronted with various clinical manifestations was emphasized by reminding that it can be seen not only in infants with neurologic and systemic disease but also in healthy infants.

Detection and Genotyping of Viruses Detected in Children with Benign Afebrile Seizures Associated with Acute Gastroenteritis / 대한소아소화기영양학회지

PURPOSE: Rotaviruses, noroviruses, astroviruses, and enteric adenoviruses cause acute gastroenteritis (AGE) in children. Some children with AGE have afebrile convulsions associated with viral gastroenteritis. The purpose of this study was to detect and genotype viruses from children with AGE or benign infantile seizures associated with mild gastroenteritis (BIS-MG). METHODS: Between August 2004 and June 2005, 311 children with AGE were included. Four viral agents, including rotavirus, norovirus, astrovirus, and adenovirus, were analyzed from stool specimens of each patient using the latex agglutination method, enzyme immunoassay, and reverse transcriptase polymerase chain reaction. Genotyping of each virus was performed in 217 of the 311 children. RESULTS: Among 217 children (male, 121; female, 96; mean age, 20.6+/-15.4 months), rotavirus was detected in 109 (50.2%), norovirus in 28 (12.9%), adenovirus in 13 (6.0%), and astrovirus in 2 children (0.9%). Genotyping of rotavirus revealed positive results in 97 children; P[8]G3 in 36, P[4]G2 in 21, P[6]G4 in 10, P[4]G4 in 9, P[8]G9 in 6, P[8]G1 in 6, P[4]G3 in 4, P[4]G9 in 3, and P[6]G2 in 2. Genotyping of norovirus showed GII-4 in 27 of 28 children and GII-6 in 1 child. Sixteen children were diagnosed with BIS-MG. Rotavirus was detected in 13 of 16 children with BIS-MG, and norovirus in 2 children. Genotyping of rotavirus detected in children with BIS-MG revealed P[8]G3 in 6 children, P[4]G2 in 2 children, and P[4]G9 in 1 child. CONCLUSION: Analysis of viruses from stool specimens indicates that both rotavirus and norovirus are the main viruses related to BIS-MG in children.

Clinical Features of Benign Infantile Convulsions with Gastroenteritis / 소아과

PURPOSE: This study was performed to characterize clinical features of benign convulsions with gastroenteritis (CwG) in infants. METHODS: We reviewed clinical features of 67 episodes in 64 patients with afebrile seizure accompanied gastroenteritis admitted to Dept. of Pediatrics Bundang CHA hospital from January 2001 to June 2004. Patients with meningitis, encephalitis/encephalopathy or apparent history of epilepsy were excluded. RESULTS: There were 32 boys and 35 girls. The age of onset ranged from 1 to 42 months (18.5+/-6.1 months). The number of children admitted to the hospital with acute gastroenteritis was 2, 887 in the same period. The percentage of patients with CwG was 2.3. Seizure type was exclusively generalized tonic or tonic-clonic seizure. The average number of seizures during a single episode was 3.1 (range, 1-13). Two or more seizures occurred in 53 (79.1%) of the 67 episodes. Antiepileptic drugs were administered for 42 episodes. Seizure did not cease after the administration of one kind of antiepileptic drug in 23 episodes (54.7%). The seizures were rather refractory to initial antiepileptic treatment. There were no abnormalities in serum biochemistry test including glucose and electrolytes. Cerebrospinal fluid was normal in all 54 episodes. Stool cultures were negative in 49 episodes. Rotavirus was positive in stools in 51 (82.3%) of 62 episodes. Norovirus was positive in stools in 2 episodes and astrovirus in 1 of 18 episodes. CT and/or MRI were performed in 15 cases and demonstrated no neuroradiologic abnormalities. Of 73 Interictal EEG, initial 24 cases showed occasional spike or sharp wave discharges from the mid-line area during stage I-II sleep, which were apparently differentiated from vertex sharp transient or K-complexes. The mean follow-up period was 5.7 months (1-36 months). Three patients experienced a recurrence of CwG, but all patients exhibited normal psychomotor development at the last follow-up. CONCLUSION: Afebrile infantile convulsions with gastroenteritis are brief generalized seizure in cluster with normal laboratory findings and good prognosis. Therefore CwG is likely to be categorized as situation-related seizure of special syndrome. Recognition of this entity should lead to assurance of the parents and long-term anticonvulsant therapy is not usually warranted.

Clinical Investigation of Benign Afebrile Seizure with Gastroenteritis

PURPOSE: The aim of this study is to characterize detailed clinical features of benign afebrile seizure with gastroenteritis. METHODS: We retrospectively investigated the medical records of 52 patients with benign afebrile seizure and gastroenteritis, who were admitted to the Department of Pediatrics Eulji University Hospital, between February 1996 and January 2005. RESULTS: There were 52 patients with benign afebrile seizure and gastroenteritis:18 boys and 34 girls. Most of the patients(86.5%) were from 12 to 23 months of age. In the monthly distribution, 71.1% were admitted between November and March. Most of the seizures(98.0%) were generalized and 53.9% of those were generalized tonic and clonic. The durations of the seizures were mostly within 5 minutes. 40 patients(76.9%) had 2 or more seizures. The interval between the onset of gastroenteritis and seizures was mostly from 2 to 4 days. Fifteen out of 32 patients were rotazyme positive. Chi-square test was performed to identify if there was any association between rotavirus and afebrile seizure. Rotavirus gastroenteritis has a stastically significant association with afebrile seizure compared to non-rotavirus gastroenteritis(P<0.01). The relative risk between rotavirus and non-rotavirus gastroenteritis was 3.35. However, there were no significant differences in clinical features between two groups. Cerebrospinal fluid was normal and cell counts, glucose and protein levels in all the patients examined. Either brain CT or MRI was performed in 9 patients and demonstrated no neuroradiological abnormalities. Electroencephalography was performed in 47 patients, of whom 43 patients(92.3%) showed normal electroencephalographic patterns. CONCLUSION: Benign afebrile seizure is characterized by the onset age between 12 months and 23 months, multiple episodes of seizure, short duration, generalized type, high incidence between November and March, and rotavirus as a major pathogen.

Afebrile Convulsion Associated with Rotaviral Gastroenteritis in Childhood

Rotavirus is an important pathogen of acute infantile gastroenteritis as well as is suspected of being one of the causative agents of benign convulsion. We evaluated the clinical and laboratory features noted in 9 young children with Rotazyme positive gastroenteritis and afebrile seizure retrospectly. Seventy-seven patients were admitted to the department of pediatrics in Yeungnam University Hospital with a history of Rotazyme positive gastroenteritis between January 1, 1991 and June 30, 1993. Afebrile convulsions have been noted in 9(11.6%) of them (7 boys and 2 girls). Their age ranged from 13 to 36 months. The seizure episodes ranged from 1 to 6 time in cluster within 2 hours. The seizure were all generalized tonic-clonic seizures lasting 1-5minutes. Serum electrolyte, EEG, brain CT and CSF findings were normal except a mild pleocytosis in one patient. Any type of epilepsy was not occurred and psychomotor development was normal in 7 patients who were followed up for 6-44 months Afebrile convulsions are sometimes found in patients with rotavirus gastroenteritis. They are characterized by brief generalized seizure or seizures in cluster, normal laboratory findings and good prognosis. We believe that individualized approach is needed in the management of rotavirus gastroenteritis with afebrile convulsion.