Publications by authors named "Anna S Pelkonen"

Background: The combination of an inhaled corticosteroid (ICS) and long-acting β-agonist (LABA) (ICS/LABA) has shown superiority in improving lung function (FEV) compared with an ICS alone. The clinical effect of a ICS/LABA combination depends on the fine-particle fraction and the pulmonary deposition.

Objective: We sought to compare the efficacy of 2 combinations of an ICS and LABA, namely, fluticasone propionate (FP) and formoterol (FORM) (FP/FORM) and fluticasone furoate (FF) and vilanterol (VI) (FF/VI), in asthmatic adolescents with chronic bronchial obstruction.

View Article and Find Full Text PDF

Background: The role of early airway hyperresponsiveness (AHR) in the lung function of school-age children is currently unclear.

Objective: To conduct a prospective follow-up study of lung function in schoolchildren with a history of lower airway symptoms and AHR to methacholine in early childhood and to compare the findings to schoolchildren with no previous or current lung diseases. We also explored symptoms and markers of type 2 inflammation.

View Article and Find Full Text PDF

Aim: Examining health-related quality of life (HRQoL) is important to improve patient care. In this study, we translate and evaluate the Finnish versions of the Food Allergy Specific Quality of Life Questionnaires (FAQLQs) from a Finnish perspective and undertake a detailed evaluation of the 10-question Parent Form Questionnaire (FAQLQ-PF10).

Methods: This validation study was performed to evaluate the Finnish versions of the FAQLQs.

View Article and Find Full Text PDF

Early-onset, persistent atopic dermatitis (AD) is proposed as a distinct subgroup that may have specific genotypic features. gene loss-of-function variants are the best known genetic factors contributing to epidermal barrier impairment and eczema severity. In a cohort of 140 Finnish children with early-onset moderate-to-severe AD, we investigated the effect of coding variation in and 13 other genes with epidermal barrier or immune function through the use of targeted amplicon sequencing and genotyping.

View Article and Find Full Text PDF

Background: Childhood atopic dermatitis (AD) is often followed by other atopic comorbidities such as asthma.

Aim: To compare the effectiveness of topical tacrolimus (TAC) and topical corticosteroids (TCSs) and their impact on airway inflammation and bronchial hyperresponsiveness in patients with paediatric AD.

Methods: This was a 3-year randomized open-label comparative follow-up study of 152 1-3-year-old children with moderate-to-severe AD (trial registration: EudraCT2012-002412-95).

View Article and Find Full Text PDF

Background: Milk oral immunotherapy (OIT) may increase the amount of milk protein that can be ingested without triggering an allergic reaction. It is important to understand why some patients benefit from the treatment while others do not.

Objective: The aim was to define the differences in the milk allergen component-specific (casein, α-lactalbumin, ß-lactoglobulin) immunoglobulin (sIg [sIgE, sIgG4, and sIgA]) levels relative to the long-term outcomes of milk OIT.

View Article and Find Full Text PDF

Background And Objectives: Options to treat and prevent episodic wheezing in children are scarce. Our objective was to assess the efficacy of intermittent tiotropium bromide treatment in early childhood episodic wheezing.

Methods: This 48-week, randomized, open-label, controlled, parallel-group trial was conducted at 4 hospitals in Finland.

View Article and Find Full Text PDF

Background: Atopic dermatitis (AD) has a severe impact on quality of life (QoL).

Objectives: To analyze the impact of AD on QoL of small children with moderate-to-severe AD in a tertiary health care hospital in Helsinki, Finland.

Materials & Methods: Based on interim analysis of this longitudinal follow-up study, we investigated treatment response (topical corticosteroids vs.

View Article and Find Full Text PDF
Article Synopsis
  • Asthma and COPD are significant health issues that are difficult to manage effectively, partly due to poor inhaler practices among patients and physicians.
  • Experts from several European countries review the Easyhaler, a type of dry-powder inhaler (DPI), highlighting its effectiveness in controlling asthma and COPD.
  • The Easyhaler is user-friendly, widely accepted by patients, and switching to it can improve disease management while also being environmentally friendly compared to traditional inhalers.
View Article and Find Full Text PDF

Background: Separating individuals with viral-induced wheezing from those with asthma is challenging, and there are no guidelines for children under 6 years of age. Impulse oscillometry, however, is feasible in 4-year-old children.

Objective: To explore the use of impulse oscillometry in diagnosing and monitoring asthma in young children and evaluating treatment response to inhaled corticosteroid (ICS).

View Article and Find Full Text PDF
Article Synopsis
  • The study looked at whether people of different ages and lung abilities with asthma or COPD could breathe in medicine effectively using the Easyhaler device.
  • Researchers checked the breathing power of 397 patients using different inhalers and found that almost all of them (99.2%) could breathe in enough air (30 L/min or more) to get the right dose of medicine.
  • They also found that younger patients' breathing power was slightly linked to their age, while for adults, other factors like lung health were more important for their breathing strength.
View Article and Find Full Text PDF

Background: The objective of this study was to evaluate the role of body mass index with regard to exercise performance, exercise-induced bronchoconstriction (EIB), and respiratory symptoms in 7- to 16-year-old children.

Methods: A total of 1120 outdoor running exercise challenge test results of 7- to 16-year-old children were retrospectively reviewed. Lung function was evaluated with spirometry, and exercise performance was assessed by calculating distance per 6 minutes from the running time and distance.

View Article and Find Full Text PDF

Background: Airway hyper-responsiveness (AHR) is a common feature in asthma. The use of AHR in predicting active asthma or the persistence of AHR in childhood is poorly understood. By analyzing longitudinal connections including different measures of AHR, lung function, and inflammation markers, we sought to identify the best available method for predicting persistence of AHR and identification of later active asthma.

View Article and Find Full Text PDF

Background: The relationship of airway hyperresponsiveness to airway remodeling and inflammation in infants with wheeze is unclear.

Objective: To investigate airway hyperresponsiveness, remodeling and inflammation in infants with wheeze and troublesome breathing.

Methods: Inclusion criteria were as follows: full-term, 3-23 months of age; doctor -diagnosed wheeze and persistent recurrent troublesome breathing; without obvious structural defect, suspicion of ciliary dyskinesia, cystic fibrosis, immune deficiency or specified use of corticosteroids.

View Article and Find Full Text PDF

Background: Lung function impairment among asthmatic children begins in early life, and biomarkers for identifying this impairment are needed. The chitinase-like protein YKL-40 has been associated with asthma and lung function in adults, but studies in children have yielded conflicting results. We evaluated the potential of YKL-40 and other systemic biomarkers for identifying lung function deficits in children with asthmatic symptoms.

View Article and Find Full Text PDF

Aim: We collected evidence and safety data for topical tacrolimus in small children with atopic dermatitis (AD) and compared the usage with topical corticosteroid.

Methods: This was an interim analysis of 75 patients (55% female) at 1 year of an ongoing 3-year randomised open-label comparative follow-up study of topical tacrolimus vs corticosteroid treatment. One- to three-year-old children with moderate-to-severe eczema referred to the Skin and Allergy Hospital in Helsinki, Finland, were enrolled.

View Article and Find Full Text PDF

Objective: To investigate the effect of vitamin D supplementation dose on allergic sensitization and allergic diseases in infants, and to evaluate whether vitamin D status in pregnancy and at birth are associated with infant allergy outcomes.

Study Design: Altogether, 975 infants participated in a randomized, controlled trial of daily vitamin D supplementation of 10 μg (400 IU) or 30 μg (1200 IU) from the age of 2 weeks. At 12 months of age, food and aeroallergen IgE antibodies were measured, and the occurrence of allergic diseases and wheezing were evaluated.

View Article and Find Full Text PDF
Article Synopsis
  • Some kids who wheeze when they are little might outgrow it, but we wanted to see if being really sensitive in their airways when they’re tiny would mean they might have asthma later on.
  • We studied 61 babies who wheezed and checked their breathing over several years, including specific tests to see how their lungs reacted to different challenges.
  • It turned out that babies who were more sensitive to certain tests were more likely to have asthma and other breathing problems when they were 6 years old, suggesting that problems in their lungs could start early.
View Article and Find Full Text PDF

Background: The safety and efficacy of long-term milk oral immunotherapy (OIT) in Finnish children with persistent cow's milk allergy (CMA) were evaluated in an open-label, non-randomized study.

Methods: During the 11-year study, 296 children aged 5 years or older with immunoglobulin E (IgE)-mediated CMA started milk OIT. Follow-up data were collected at three time points: the post-buildup phase, 1 year thereafter, and at the cross-sectional long-term follow-up between January 2016 and December 2017.

View Article and Find Full Text PDF