ABSTRACT
Introducción. El índice de volumen plaquetario medio/linfocitos (IVPML) es un parámetro novedoso de inflamación y trombosis. El objetivo fue evaluar si cumple una función en el diagnóstico de la apendicitis pediátrica.Población y métodos. Se revisaron retrospectivamente historias clínicas de pacientes de hasta 18 años con sospecha de apendicitis aguda (AA) sometidos a apendicectomía entre enero de 2016 y diciembre de 2017. Según la evaluación histopatológica, se clasificó a los pacientes en apéndice normal y apendicitis simple y perforante. Se midieron volumen plaquetario medio (VPM), amplitud de distribución plaquetaria (ADP), IVPML, índice de plaquetas/linfocitos (IPL), recuentos de plaquetas y leucocitos, y concentración de proteína C-reactiva (PCR).Resultados. Se revisaron los registros de 219 niños con sospecha de AA sometidos a tratamiento quirúrgico por apendicitis, y se incluyó a 100 niños sanos de la misma edad y sexo. Comparados con los controles, los valores medios de IVPML, IPL, leucocitos y PCR fueron más elevados en los niños con apendicectomía (p < 0,001). Estos valores fueron más elevados en los casos de apendicitis simple que de apéndices normales (p< 0,01). Comparados con la apendicitis simple, estos valores fueron más elevados en los niños con apendicitis perforante (p< 0,001). Las áreas bajo la curva del IVPML e IPL fueron 0,771 y 0,726 en la predicción de apendicitis y 0,693 y 0,722 en la predicción de perforación, respectivamente.Conclusiones. Una concentración elevada de IVPML podría contribuir a diagnosticar la AA pediátrica. Además, puede ayudar a diferenciar la apendicitis simple de la perforante.
Introduction. Mean platelet volume-to-lymphocyte ratio (MPVLR) has emergedas a novel parameter of inflammation andthrombosis. The aim was to evaluate whether MPVLR has a role in the diagnosis ofchildhood appendicitis. Population and methods. Retrospectively reviewed the medical records up to 18 year with suspected acute appendicitis (AA) who underwent appendectomy between January 2016 and December 2017. Based on histopathological evaluation, the patients were classified into normal appendix, and simple and perforated appendicitis. Preoperative mean platelet volume (MPV), platelet distributionwidth (PDW), MPVLR, platelet-to-lymphocyteratio (PLR), counts of platelets and white bloodcells (WBC), and C-reactive protein (CRP) levels were measured. Results. A total of 219 children with clinically suspected AA who underwent surgical treatmentfor appendicitis were reviewed, and 100 gender-age matched healthy subjects were included. Compared with the controls, the mean levels of MPVLR, PLR, WBC and CRP were significantly higher in the children underwent appendectomy (p <0.001). These values were significantly higherin simple appendicitis than in normal appendices (p<0.01). Compared with simple appendicitis,these levels were significantly higher in thechildren with perforated appendicitis (p <0.001). The area under curves for MPVLR and PLR were0.771 and 0.726 in the prediction of appendicitisand 0.693 and 0.722 in the prediction of perforation, respectively. Conclusions. Increased level of MPVLR may bevaluable for aiding the diagnosis of pediatric AA. In addition, it can help discriminate simple and perforated appendicitis in children.
Subject(s)
Humans , Child, Preschool , Child , Adolescent , Appendectomy , Appendicitis/diagnosis , Lymphocyte Count , Mean Platelet Volume , Retrospective StudiesABSTRACT
Introducción. Evaluamos el nivel de reactantes de fase aguda y la prueba LightCycler® SeptiFast para diferenciar infecciones bacterianas vs.virales. Métodos. Estudio prospectivo en niños febriles. Se analizaron recuento de leucocitos, proteína C-reactiva y procalcitonina en días 1, 3 y 7 de hospitalización. El día 1 se realizaron hemocultivo y radiografía de tórax. Se evaluaron dos grupos de niños que presentaron infecciones bacterianas o virales. Resultados. Se incluyeron 94 niños febriles. La temperatura media de la fiebre fue significativamente más alta en niños con infecciones bacterianas que con infecciones virales (p < 0,001). En 34 (72,3%) niños con infecciones bacterianas, el hemocultivo fue negativo. De ellos, 12 (35,2%) presentaron prueba SeptiFast positiva. No hubo resultados positivos en hemocultivos de niños con infecciones virales y todos tuvieron resultado negativo para la prueba SeptiFast. La media de proteína C-reactiva el primer día de hospitalización fue significativamente más alta en el grupo con infecciones bacterianas (p < 0,001) y en los días 3 y 7 junto con la procalcitonina fueron significativamente más altas en niños con infecciones bacterianas (p <0,001). La sensibilidad y especificidad de los leucocitos, la proteína C-reactiva y la procalcitonina fueron 63,8%, 44,7%, 74,5% y 78,7%, 68,1% y 100%, respectivamente. Las áreas bajo la curva de los leucocitos, la proteína C-reactiva y la procalcitonina fueron 0,519, 0,764 y 0,835, respectivamente. Conclusiones. Los reactantes de fase aguda, en especial procalcitonina, y la prueba LightCycler® SeptiFast podrían ayudar a diferenciar infecciones bacterianas de virales.
Introduction: This study was performed to investigate the value of acute phase reactants and LightCycler® SeptiFast test to differentiate bacterial and viral infections. Population and methods: Children with fever were enrolled to this prospective study. Peripheral white blood cell (WBC), C-reactive protein (CRP) and procalcitonin (PCT) were studied from all patients on day 1, 3 and 7. Blood culture and chest X-ray were also obtained on day 1. Blood samples for LightCycler® SeptiFast test were obtained in all patients to use them if there was uncertain diagnosis between bacterial or viral infection. The patients were divided into two groups as bacterial and viral infection. Results: A total of 94 children with fever were enrolled. The mean value of fever was significantly higher in bacterial group than viral group (p <0.001). In bacterial infection group, 34 (72.3%) patients had negative blood culture. Of those, 12 (35.2%) had positive SeptiFast test. There were no positive blood culture in patients with viral infection group and all of them had negative SeptiFast test. The mean levels of CRP on the first day of admission were significantly higher in bacterial group than viral group (p <0.001). CRP and PCT levels of day 3 and 7 were significantly higher in bacterial group (p <0.001). The sensitivity and specificity levels of WBC, CRP and PCT were 63.8%, 44.7%, 74.5% and 78.7% ,68.1% and 100%, respectively. Conclusions: We found that acute phase reactants, especially PCT, and LightCycler® SeptiFast test may help to differentiate bacterial and viral infections.
Subject(s)
Humans , Male , Female , Infant , Child, Preschool , Child , Bacterial Infections/diagnosis , Bacterial Infections/blood , Virus Diseases/diagnosis , Virus Diseases/blood , Acute-Phase Proteins/analysis , Multiplex Polymerase Chain Reaction , Prospective Studies , Diagnosis, Differential , Real-Time Polymerase Chain ReactionABSTRACT
BACKGROUND & OBJECTIVE: There is scanty information available on the pharyngeal carriage of Streptococcus pneumoniae and serotype distribution in healthy Turkish children. We therefore undertook this study to determine the serotype prevalence of pharyngeal S. pneumoniae isolates of healthy school children in Turkey. METHODS: Pharyngeal swabs were collected from 1440 healthy children (Ages 6-13) between April 2003 and March 2004. S. pneumoniae was identified by standard microbiological culture methods. The serotyping was performed and penicillin minimal inhibitory concentration was detected by the E test. RESULTS: S. pneumoniae carrier rate was 13.9 per cent (n=201) and penicillin resistance 12.9 per cent (n=26). Twenty four of 201 (11.9%) isolates were found intermediately resistant and 2 of 201 (1%) highly resistant by E test. A total of 169 of 201 (84%) pneumococcal isolates were typable with the available antisera. The six most frequent serotypes were 6, 19, 1, 23, 20 and 17. The majority of penicillin-resistant isolates were serotypes 20, 23, 14, 6 and 19. INTERPRETATION & CONCLUSION: The serotype distribution of the isolates showed diversity and that some common circulating serotypes are invasive. A majority of invasive serotypes are covered by pneumococcal conjugate vaccine formulations in at risk groups of children suggesting that vaccine use could reduce the incidence of invasive pneumococcal disease.