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Query: UMLS:C0729233 (Thoracic)
 6,478 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

There are three milestones in the history of thoracic radiology. Thoracic radiology started in 1897 when Williams developed thoracic fluoroscopy and introduced the basic concepts of roentgenologic interpretation. At the same time, the first chest films were performed allowing decisive improvement in the diagnosis of many chest diseases. Continuous technical improvement is responsible for the fact that, even today, the conventional chest film remains a highly accurate and frequently used imaging modality. A third milestone was the development of digital radiography and its use in the chest. Computerised tomography changed thoracic imaging dramatically; in a first step mainly as a tool to visualise soft tissue abnormalities and, later on, also as a modality to study lung disease. The recent development of the digital chest radiograph has again added new perspectives to the approach and diagnosis of chest disease.
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PMID:[Radioscopy and radiography of the thorax. Birth and maturation of an ever-current technique]. 857 26

There are three milestones in the history of thoracic radiology. Thoracic radiology started in 1897 when Williams developed thoracic fluoroscopy and introduced the basic concepts of roentgenologic interpretation. At the same time, the first chest films were performed allowing decisive improvement in the diagnosis of many chest diseases. Continuous technical improvement is responsible for the fact that, even today, the conventional chest film remains a highly accurate and frequently used imaging modality. A third milestone was the development of digital radiography and its use in the chest. Computerised tomography changed thoracic imaging dramatically; in a first step mainly as a tool to visualise soft tissue abnormalities and, later on, also as a modality to study lung disease. The recent development of the digital chest radiograph has again added new perspectives to the approach and diagnosis of chest disease.
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PMID:Computed tomography, magnetic resonance imaging, and digital radiography. 857 27

In an attempt to identify the range of opinions influencing the diagnosis and therapy of patients with the adult respiratory distress syndrome (ARDS), a postal survey was mailed to 3,164 physician members of the American Thoracic Society Critical Care Assembly. The questionnaire asked opinions regarding the factors important in the diagnosis of ARDS and its treatment. Thirty-one percent of physicians surveyed responded within 4 weeks, the vast majority of which were board certified or eligible in Internal Medicine, Pulmonary Disease, and/or Critical Care Medicine. A known predisposing cause, measure of oxygenation efficiency, and a chest radiograph depicting pulmonary edema were reported to be the most important criteria for a clinical and research diagnosis of ARDS. Lung compliance and bronchoalveolar lavage neutrophil or protein content were reportedly less important. The initial treatment of patients with ARDS was reported to be most commonly accomplished using volume-cycled ventilation in the assist/control mode. Nearly half the responders reported using lower tidal volumes (5 to 9 mL/kg) than the traditionally recommended 10 to 15 mL/kg. Most respondents indicated they have intentionally allowed CO2 retention. On average, oxygen toxicity was thought to begin at an FIO2 between 0.5 and 0.6. It was reported that modest levels of positive end-expiratory pressure (PEEP) were used in incremental fashion as FiO2 requirements increased. Perceived indications for insertion of pulmonary artery catheters and compensation of the effects of PEEP on the pulmonary artery occlusion pressure varied widely among the responders. We conclude that reported practice patterns regarding the care of ARDS patients vary widely even within a relatively homogenous group of critical care practitioners.
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PMID:Diagnosis and therapy of acute respiratory distress syndrome in adults: an international survey. 890 79

The aim of this study was to determine the extent to which bronchopulmonary dysplasia (BPD) affects the diffusing properties of lung tissue in childhood. Pulmonary function in 31 prematurely born children (BW. < 1250 g) was examined at ages 7-11 years. Twenty out of 31 prematurely born children met the criteria for BPD. The remaining 11 children had milder forms of neonatal lung disease. Twenty healthy children of the same age and born at term served as a control group. The diffusing capacity of the lung for carbon monoxide (DLCO) was measured by the single breath method. Lung volumes were determined in a body plethysmograph and expiratory flow rates with a flow/volume spirometer. DLCO values of children with histories of BPD did not differ significantly from those of the prematurely born children without BPD. However, DLCO values in both prematurely born study groups were significantly lower than those in controls born at term. Thoracic gas volumes measured with a body plethysmograph were similar in all groups. Spirometry demonstrated reduced flow rates in both BPD and non-BPD prematurely born children. The results suggest that some structural changes in lung tissues and airways persist for years in children who are born very preterm regardless of whether they develop BPD or not.
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PMID:Diffusing capacity of the lung in school-aged children born very preterm, with and without bronchopulmonary dysplasia. 892 61

As recently as the 1992 Report of the American Thoracic Society Workshop on Lung Transplantation, no QOL facts were given and no knowledge gaps related to QOL outcomes were cited. Even at the present time, the information in that area is based on a relatively small set of preliminary reports. Current information indicates that successful lung transplantation largely reverses the energy and physical mobility deficits reported by transplant candidates and that those improvements are sustained for at least several years after transplant. Recipients report improved health perceptions, fewer problems, and greater life satisfaction than candidates. The type and amount of QOL benefit appear to differ by underlying lung disorder, and recipients who develop obliterative bronchiolitis syndrome experience declines in QOL. Lung transplantation surgery is an expensive procedure initially, and costs remain high during follow-up. Little information is available on long-term QOL outcomes or cost-effectiveness. There is a compelling rationale for QOL research in lung transplantation. At the present time, some of the most challenging problems in transplantation, such as the selection of optimal timing for transplant and choice of immunosuppression medications, do not appear to have clear-cut survival or clinical benefits. Determination of the best approach to such problems is likely to hinge on patients' perceptions of the risk-to-benefit ratio, measured by their perceived QOL. Findings from QOL research need to be developed into interventions to enhance patient outcomes. As noted by Whitehead, QOL and potentially lethal noncompliance may be linked. Can we develop immune suppressive protocols that maintain clinical benefits while minimizing QOL burdens? Pilot studies suggest that QOL can be enhanced prior to transplant, and that health-related QOL prior to transplant may predict survival and clinical outcomes. As noted by Ramsey et al, multicenter studies are needed to achieve sufficient numbers for multivariate and subset analyses and to address issues such as the impact of diagnosis (indication for transplant) on QOL outcomes and cost-effectiveness. QOL and cost measures must be incorporated into large, longitudinal, multicenter clinical trials and observational studies to address those issues.
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PMID:The cost of lung transplantation and the quality of life post-transplant. 918 30

The allergens of domestic pets such as cats, dogs and birds, have been known to sensitive predisposed individuals. In Singapore, approximately 25% to 35% of our atopic populations are sensitised to cat, dog or bird feather allergens. It is not known, however, if the presence of such domestic pets would translate to higher rates of sensitisation, or more importantly, give rise to increased respiratory symptoms. This study evaluated the association between the presence of domestic pets at home and the prevalence of respiratory symptoms among asthmatic children in Singapore. The parents of 1517 doctor-diagnosed asthmatic children were interviewed using the American Thoracic Society-Division of Lung Diseases respiratory questionnaire. More than 20% were found to have domestic pets (cats, dogs or birds) at home. Of these, those with exposure to passive smoke in the home were excluded. A total of 188 current pet owners (cats, dogs and birds) were demographically-matched for sex, race and socio-economic status (type of housing) to those without pets, past or current. Compared to those without pets, asthmatic children with pets at home had a higher prevalence of coughing with cold [relative risk (RR) 1.30; 95% confidence interval (CI) 1.01 to 1.69]; wheezing with cold (RR 1.42; CI 1.07 to 1.90), wheezing with shortness of breath (RR 1.33; CI 1.00 to 1.82), exercise-induced wheezing (RR 1.68; CI 1.10 to 2.56); and increased phlegm production or congestion with cold (RR 1.38; CI 1.00 to 1.91). This study suggests that the presence of domestic pets increases the prevalence of respiratory symptoms in asthmatic children. Those with predisposition to these allergens should avoid having these pets in the home or take specific precautions in avoiding their allergens.
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PMID:Presence of domestic pets and respiratory symptoms in asthmatic children. 928 20

Tobacco use, particularly cigarette smoking, is widely recognized by the medical community and the general public as a major public health problem. Physicians and medical organizations share a public health duty to address this problem. Physicians and their professional organizations must contribute effectively to measures undertaken to deal with cigarette smoking. The issues involved are complex and affect medical practice in a number of ways. The following statement developed by six international organizations--the American College of Chest Physicians, the American Thoracic Society, the European Respiratory Society, the Asian Pacific Society of Respirology, the Canadian Thoracic Society, and the International Union Against Tuberculosis and Lung Disease--is intended to state the physician's responsibilities both to patients and to the community with regard to these general issues.
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PMID:Smoking and health: a physician's responsibility. A statement of the Joint Committee on Smoking and Health. American College of Chest Physicians, American Thoracic Society, Asian Pacific Society of Respirology, Canadian Thoracic Society, European Respiratory Society, International Union against Tuberculosis and Lung Disease. 943 10

This cross-sectional study evaluated the prevalence of, and risk factors for, asthma and rhinitis in a randomized sample of males and females, aged 0-69 yrs, in Perugia, Italy. To determine the prevalence of asthma and rhinitis, 824 subjects were interviewed by trained physicians using a modified American Thoracic Society and National Heart and Lung Institute-Division of Lung Disease questionnaire proposed in 1978 (ATS-DLD-78). Skin-prick tests were carried out in 667 subjects > or = 3 yrs of age. Age, sex, atopy, smoking, and household pets were considered potential risk factors for the development of asthma and rhinitis. Cumulative prevalences of: asthma was 8.1%; current asthma 5.0%; and rhinitis 15.2%. Positive skin tests were observed in 21.3% of subjects: in 63.4% of the cases of current asthma and in 68.7% of rhinitis cases. The prevalence of asthma and rhinitis was similar in both sexes. Prevalence of current asthma was almost three times higher in childhood than after the age of 10 yrs. Positive skin tests for pollens and house dust mite were the most prevalent risk factors for asthma. Current smoking was inversely associated with prevalence of current asthma possibly because of a self-selecting effect. Household pets were found not to be major risk factors for asthma or rhinitis. In conclusion, prevalence of asthma and rhinitis is a common health problem in the Perugia area, and atopy, particularly pollen sensitivity, is the most important risk factor for the development of asthma and rhinitis.
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PMID:Prevalence of asthma and rhinitis in Perugia, Italy. 951 Jun 61

The Functional Performance inventory (FPI) is a new instrument designed to measure functional status in terms of activities that people perform on a daily basis. Psychometric characteristics were examined by a survey of 45 men and 27 women with chronic obstructive pulmonary disease (COPD). Internal consistency reliability was high and no ceiling and floor effects were observed for the Total FPI. Concurrent validity was demonstrated by correlations with the Total Sickness Impact Profile (r = -.59). Construct validity was supported by correlations with the Medical Outcomes Study Short Form-36, Physical Functioning (r = .69), the Physical Activity Scale for the Elderly (r = .62) and American Thoracic Society-Division of Lung Disease Breathlessness scale (r = -.62). The Total FPI is a reliable and valid measure of functional performance in persons with COPD.
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PMID:Reliability and validity of the functional performance inventory in patients with moderate to severe chronic obstructive pulmonary disease. 976 11

Thoracic transplantation has been a clinical option for patients with end-stage heart and lung disease for three decades. Heart, lung, and combined heart-lung transplantations are no longer experimental procedures; they are a standard part of the treatment algorithm for selected patients with end-stage heart and lung disease. This article summarizes the current status of heart, lung, and heart-lung transplantations and provides an insight into the future of this field.
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PMID:Thoracic transplantation in 1998. 979 78


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