Reference values of inspiratory spirometry for Finnish adults

Inspiratory spirometry is used in evaluation of upper airway disorders e.g. fixed or variable obstruction. There are, however, very few published data on normal values for inspiratory spirometry. The main aim of this study was to produce reference values for inspiratory spirometry for healthy Finnish adults.Inspiratory spirometry was preplanned to a sample of the Finnish spirometry reference values sample. Data was successfully retrieved from 368 healthy nonsmoking adults (132 males) between 19 and 83years of age. Reference equations were produced for forced inspiratory vital capacity (FIVC), forced inspiratory volume in one second (FIV1), FIV1/FIVC, peak inspiratory flow (PIF) and the ratios of FIV1/forced expiratory volume in one second and PIF/peak expiratory flow. The present values were compared to PIF values from previously used Finnish study of Viljanen etal. (1982) reference values and Norwegian values for FIV1, FIVC and FIV1/FIVC presented by Gulsvik etal. (2001). The predicted values from the Gulsvik etal. (2001), provided a good fit for FIVC, but smaller values for FIV1 with mean 108.3 and 109.1% of predicted values for males and females, respectively. PIF values were 87.4 and 91.2% of Viljanen etal. (1982) predicted values in males and females, respectively. Differences in measurement methods and selection of results may contribute to the observed differences. Inspiratory spirometry is technically more demanding and needs repeatability criteria to improve validity. New reference values are suggested to clinical use in Finland when assessing inspiratory spirometry. Utility of inspiratory to expiratory values indices in assessment of airway collapse need further study.Peer reviewe

Tuleeko toisiolaista tutkimuksen tulppa vai kasvumoottori?

Rekisteritietojen yhdistäminen ei ole vain tekninen ongelma, vaan edellyttää myös sisällön yhteismitallisuutta. Paras kliinisen ¬informatiikan osaaminen on yliopistosairaaloissa. Sitä ei pidä heittää hukkaan

Body composition and bone mineral density in children with premature adrenarche and the association of LRP5 gene polymorphisms with bone mineral density

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Cholesterol metabolism and weight reduction in subjects with mild obstructive sleep apnoea: a randomised, controlled study

Peer reviewe

Tuleeko toisiolaista tutkimuksen tulppa vai kasvumoottori?

Rekisteritietojen yhdistäminen ei ole vain tekninen ongelma, vaan edellyttää myös sisällön yhteismitallisuutta. Paras kliinisen ­informatiikan osaaminen on yliopistosairaaloissa. Sitä ei pidä heittää hukkaan

Kalliiden lääkkeiden käyttöönotosta suositus

Kalliit lääkkeet on otettava käyttöön yhdenmukaisella prosessilla. Ei ole tarkoituksenmukaista, että sairaanhoitopiirit kilpailisivat keskenään erilaisella lääkekirjolla, varsinkaan silloin kun on ¬kysymyksessä hyvin kallis hoito. Pelisäännöt on nyt tehty

Flow-Mediated Vasodilation Is Not Attenuated in Hypertensive Pregnancies Despite Biochemical Signs of Inflammation

Background. Our objective was to evaluate endothelial function and markers of inflammation during and after pregnancy in normal pregnancies compared to pregnancies complicated with hypertension or preeclampsia (PE). Methods and Results. We measured endothelium-dependent brachial artery flow-mediated vasodilation (FMD) and high sensitive C-reactive protein (hsCRP), interleukin-6 (IL-6), and tumour necrosis factor-α (TNF-α) in 32 women with normal pregnancy and in 28 women whose pregnancy was complicated with hypertensive disorder in the second half of pregnancy and minimum 3-month postpartum. Enhancement of endothelial function was greater in hypertensive than normal pregnancies, the mean FMD% being 11.0% versus 8.8% during pregnancy (P = 0.194) and 8.0% versus 7.9% postpartum (P = 0.978). Concentrations of markers of inflammation were markedly increased in pregnant hypertensive group compared to those after delivery (hsCRP 4.5 versus 0.80 mg/L, P = 0.023, IL-6 2.1 versus 1.2 pg/mL, P = 0.006; TNF-α 1.9 versus 1.5 pg/mL, P = 0.030). There were no statistically significant associations between the markers of inflammation and FMD. Conclusions. Brachial artery FMD was not attenuated in the third trimester hypertensive pregnancies compared to normal pregnancies, whereas circulating concentrations of hsCRP and IL-6 and TNF-α reacted to hypertensive complications

Influence of Serotonin Transporter Gene Polymorphism (5-HTTLPR Polymorphism) on the Relation between Brain 5-HT Transporter Binding and Heart Rate Corrected Cardiac Repolarization Interval

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