[Kinetocardiographic curve in chronic cor pulmonale caused by chronic obstructive bronchopneumopathy].
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Biomedical subjects
Publications and source records attributed to C Rampulla.
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Bronchodilators represent one of the most important therapeutic weapons for the treatment of airway obstructive diseases and the inhaled route of administration is very often employed due to the greater drug availability and reduced magnitude of side effects. During acute exhacerbations, it is not unfrequent that the elastic and resistive loads imposed on the ventilatory pump overcome the force sustainable by the respiratory muscles and the patient requires ventilatory assistance, in order to relieve fatigue and to optimize alveolar gas exchange. During these episodes, inhaled bronchodilators, far from being discontinued, sometime must be administered during mechanical ventilation, that, in hypercapnic ventilatory failure can be frequently applied noninvasively with a good rate of success. While in the current literature there are a lot of data about inhaled drug administration during invasive mechanical ventilation, very few data are available on the topic of aerosol therapy during noninvasive mechanical ventilation. With the present paper we want to analyze the rationale, the feasibility and the current data dealing with the administration of inhaled drugs during noninvasive mechanical ventilation.
BACKGROUND: To date we lack official data on tipology of Diagnosis Related Groups (DRGs) and their quality in Italian Respiratory Intermediate Care Units (RICUs). AIM: The objective of the study was to collect data on the activity of 26 Italian RICUs and to evaluate the quality of the DRGs generated. METHODS: The primary and secondary diseases, the procedures carried out and their coding using the ICD9 system (valid Italy until 2000) were collected from the discharge forms of patients admitted to RICUs. To obtain the DRG, these codes were automatically recoded in the ICD9-CM classification system by Grouper 10. Afterwards, the same diseases and procedures were directly processed by the ICD9-CM classification system. Finally, in order to evaluate the quality of care, the DRGs generated by the ICD9 classification system were compared to DRGs generated by the ICD9-CM classification system. RESULTS: The average weight of the patients cared for in an Italian RICU was 2.05 using the ICD9 classification system and 2.53 using the ICD9-CM classification system. Some non-complicated DRGs (80-97) or non specific DRGs (101-102) were set to zero; others, like DRG 87 appear due to the ability of the ICD9-CM classification system to recognise and accept the fifth digit of the Respiratory Failure code (518.81). The difference in terms of DRG scores generated by the two codification systems was 360.5 DRG points in favour of ICD9-CM. More than 1 million Euro of reimbursements have been lost, as the average national reimbursement for each DRG score is Euro 2,943.80. CONCLUSION: Severe pulmonary diseases determined the case mix of patients cared for in the Italian RICUs during the observed period. The Italian RICUs offer high quality assistance and are characterised by high mean weight per treated patient. However, the activity has been under-estimated due to the low sensitivity of the ICD9 classification system used in the recognition of the real disease and in the correct generation of relative DRG. The ICD9 classification system penalised the recognition of respiratory failure in particular.
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After a preliminary discussion on the definition of COPD, the author points out the risk factors of COPD in indoor and outdoor environment. An increase in airway disease and particularly in COPD has been reported in children and elderly people in the areas with higher environmental pollution. Indoor pollution has been more recently investigated and most studies identify passive tobacco smoke as the major risk factor of COPD. At present, the role of other indoor chemical pollutants, as NOx and CO, in COPD is not clear.
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The aim of this study was to examine the discriminating power of six widely used, or recently introduced, reference values in the interpretation of pulmonary ventilation (FVC and FEV1) in occupational health surveys. These six reference values were applied to a sample of 400 Italian males; 200 of the sample were foundry workers and the other 200 were workers who were not occupationally exposed to dusts; 50% of each group were smokers. The relationship between the reference values and their capacity to discriminate between the workers occupationally exposed to dusts and the workers who smoked in each group was evaluated. The results showed very significant differences among the various reference values. Generally speaking these differences may be determined by the different selection criteria of the subjects under study, or may be a result of the different characteristics of the population included in the various studies. Our conclusions show the need for a critical approach to the use of reference values, particularly during screening tests.
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