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Previous issue date: 2011-08-31 / OBJECTIVE : To evaluate the airway resistance by interrupter technique (Rint) in preschool children born prematurely. STUDY DESIGN : Cross-sectional study of cohort premature infants born between (2004-2005). Data collection was conducted from November 2008 and May 2010. Anthropometric measurements were performed on the test day. The Rint was measured with the device Microrint? using filter. Calibration was performed every 50 trials. Were carried out 10 interruptions to the flow air in the peak expiratory flow sequentially. At the end of the test were stored ten consecutive respiratory cycles and to check the acceptability of the examination format of the curves and the VC for reproducibility ? 20%. We used the median value of Rint. RESULTS : The Rint was measured in 33 (89%) preterm infants and compared with a control group of 32 children. The premature group had higher Rint (0.91 kPa/L/s) versus the control group (0.80 kPa/L/s) but not statistically significant (p= 0,832). CONCLUSION : The Rint is easily reproducible in preschool children, but a tool is not sensitive enough to identify obstruction in patients with a history of prematurity in relation to the group of healthy children. / OBJETIVO : Avaliar a resist?ncia das vias a?reas pela t?cnica do interruptor (Rint) em crian?as pr?-escolares nascidas prematuramente. METODOLOGIA : Estudo transversal de uma coorte de prematuros nascidos entre 2004-2005 no Hospital S?o Lucas da PUCRS. A coleta foi realizada entre novembro de 2008 at? maio de 2010. Foram realizadas medidas antropom?tricas no dia do teste. A Rint foi mensurada com o aparelho MicroRint?, com uso do filtro. A calibra??o foi executada a cada 50 medidas. Foram realizadas dez interrup??es ao fluxo de ar no pico de fluxo da expira??o de forma seq?encial. No final do teste eram armazenados dez ciclos respirat?rios consecutivos. Para a aceitabilidade do exame verificamos o formato das curvas e para a reprodutibilidade o CV ? 20%. Foi utilizado o valor da mediana da Rint. RESULTADOS : A Rint foi mensurada em 33 (89%) crian?as prematuras e comparada com um grupo controle de 32 crian?as. O grupo de prematuros apresentou Rint elevada (0,91 kPa/L/s) contra o grupo controle (0,80 kPa/L/s), por?m sem diferen?a estatisticamente significativa (p= 0,832). CONCLUS?O : A Rint ? facilmente reprodut?vel em crian?as com idade pr?escolar, por?m n?o ? uma ferramenta sens?vel o suficiente para identificar obstru??o em pacientes com hist?ria de prematuridade em rela??o ao grupo de crian?as saud?veis.
| Identifer | oai:union.ndltd.org:IBICT/oai:tede2.pucrs.br:tede/1378 |
| Date | 31 August 2011 |
| Creators | Salom?o, Sandra Cristina |
| Contributors | Jones, Marcus Herbert |
| Publisher | Pontif?cia Universidade Cat?lica do Rio Grande do Sul, Programa de P?s-Gradua??o em Medicina/Pediatria e Sa?de da Crian?a, PUCRS, BR, Faculdade de Medicina |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Biblioteca Digital de Teses e Dissertações da PUC_RS, instname:Pontifícia Universidade Católica do Rio Grande do Sul, instacron:PUC_RS |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | 3098206005268432148, 500, 600, -8624664729441623247 |
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