Asthma Progression of Disease with Abnormality in Pulmonary Function

asthma progression
More severe asthma can persist from childhood into adulthood without remission. Another important tendency in the natural history is for symptoms to remit in adolescence only to return again in adulthood. In general, the amount of wheezing in early adolescence seems to be a guide for severity in early adult years, with 73% of those with few symptoms at age 14 years continuing to have little or no asthma progression at age 28 years. Similarly 68% of those with frequent wheezing at 14 years still suffered from recurrent asthma at age 28 years. Most subjects with frequent wheezing at 21 years continued to have comparable asthma at 28 years. In addition to the importance of symptoms in childhood, childhood degree of bronchial responsiveness in combination with a low FEV-1 were also related to the outcome of asthma in adulthood. (more…)

Antileukotrienes in Acute Asthma: Zafirlukast, Montelukast, Leukotriene Receptor Antagonists

Leukotriene Receptor Antagonists
Leukotrienes can be found in the airway and urine following both spontaneous exacerbations of asthma and acute exposure to bronchoconstrictor stimuli in the laboratory. This in turn indicates that they may have a role in the pathogenesis of acute episodes of bronchoconstriction. Although antileukotrienes are not currently advocated in the management of acute asthma, there are data to suggest that they might be of some potential benefit. Prior treatment with montelukast asthma has been shown in several studies to significantly shorten the time taken to recover (in terms of FEV 1 ) following exposure to a bronchoconstrictor stimulus. (more…)

Leukotriene B4 in Exhaled Breath Condensate And Sputum

Leukotriene B4
Some features seem to be common to severe asthma and Chronic Obstructive Pulmonary Disease with reversibility of airflow limitation. The neutrophil chemoattractant leukotriene B 4 (LTB 4) may play a role in Chronic Obstructive Pulmonary Disease and in some forms of asthma. In this study, 55 smokers with no disease, Chronic Obstructive Pulmonary Disease (with or without bronchodilator reversibility of airflow limitation) or asthma underwent measurement of LTB 4 in sputum supernatants and exhaled breath condensate asthma (EBC). Both Chronic Obstructive Pulmonary Disease and asthma patients had higher levels of LTB 4 than control subjects; patients with asthma or reversible Chronic Obstructive Pulmonary Disease exhibited significantly higher levels of LTB 4 than those with irreversible Chronic Obstructive Pulmonary Disease. (more…)

Use Of Exhaled Nitric Oxide Measurements To Guide Treatment In Chronic Asthma

Adjusting the inhaled glucocorticoid dose based on indices of airway inflammation has been proposed as a means of achieving more effective control of asthma than the conventional approach of adjusting steroid dose based on symptoms, lung function and rescue medication use. In a single-blind, placebo-controlled trial, 97 asthmatic patients received fluticasone doses adjusted on the basis either of conventional guidelines or of exhaled nitric oxide fraction (FE NO ). (more…)

Pediatric Allergy – Children Allergic Treatment and Medication

pediatric allergy

pediatric allergy children
Treatment of allergic diseases in childhood presents unique challenges, as both the beneficial effects and the detrimental effects of intervention(s) may last for decades and even for a lifetime. Most allergic diseases are managed in a community setting by primary care physicians, rather than in a hospital setting by allergy specialists. Here, we describe outpatient treatment, which is focused on prevention and relief of morbidity from allergic diseases and on the identification of children at high risk (more…)

Airway Inflammation and Progression of Asthma Respiratory Viral Infections

Airway Inflammation
Asthma is a continuing problem for healthcare, particularly in the industrialized world. Some 150 million people are estimated to suffer from asthma worldwide, with 5.2 million sufferers in the UK. Hospital admissions for asthma number 69 000 per annum in the UK, including 28 500 children. Approximately 1400 people die from asthma in the UK annually, of whom over 30% are under the age of 65. Asthma costs the UK National Health Service almost £90 million per annum (statistics from Asthma UK, http://www.asthma.org.uk). (more…)

Acute Severe Asthma Management

children acute severe asthma
How to properly make clinical diagnosis of acute severe asthma? There is little doubt of the accuracy of current asthma testing. This is because most patients had bring out an established asthma diagnosis from prior regular asthma treatment, before presenting it to Asthma Emergency Department. We can see that most of patients had physical presentation: sitting up right, had profusely diaphoretic, only manage to speak only a few words at a time, and obvious respiratory distress. We can see varying respiratory rate on most patients. Hyperventilating is common in proportion to the severity of asthma attack. On the other hand, patients with hypoventilation is an indication of impending respiratory arrest. (more…)