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Biomedical subjects

C Mayordomo

Publications and source records attributed to C Mayordomo.

12 recordsLinked to original sources

Factors associated with increased risk of exacerbation and hospital admission in a cohort of ambulatory COPD patients: a multiple logistic regression analysis. The EOLO Study Group.

BACKGROUND AND OBJECTIVE: The aim of this study was to develop and validate two models to estimate the probabilities of frequent exacerbations (more than 1 per year) and admissions for chronic obstructive pulmonary disease (COPD) that can be used in a primary care setting. METHODS: Information was obtained in a cross-sectional observational study on ambulatory COPD patients performed in 201 general practices located throughout Spain. The model for admissions included 713 cases, 499 for the developmental sample and 214 in the validation sample; the model for frequent exacerbations included 896 patients, 627 in the developmental sample and 269 in the validation model. Candidate variables to be included in both models were: age, sex, body mass index (BMI), FEV(1) as percent predicted [FEV(1 )(% pred.)], active smoking, chronic mucus hypersecretion (CMH) and significant comorbidity. RESULTS: The admission model contained 2 readily obtainable variables: comorbidity (OR = 1.97; CI 95% = 1. 24-3.14) and FEV(1)(% pred.) (OR = 0.72; 0.58-0.88, for every 10 units), and well calibrated in developmental and validation samples (goodness-of-fit tests: p = 0.989 and p = 0.720, respectively). The model for frequent exacerbations included 3 variables: age (OR = 1. 21; 1.01-1.44; for every 10 years of increasing age), FEV(1 )(% pred. ) (OR = 0.82; 0.70-0.96, for every 10 units) and CMH (OR = 1.54; 1. 11-2.14) and also well calibrated (p = 0.411 and p = 0.340 in the developmental and validation samples, respectively). CONCLUSIONS: Our results suggest that FEV(1) impairment explains part of the risk of frequent exacerbations and hospital admissions. Furthermore, CMH and increasing age are significantly associated with the risk of frequent exacerbations, but severity of exacerbations provoking hospital admissions is associated with the presence of significant comorbidity. These important and easily measurable variables contain valuable information for optimal management of ambulatory patients with COPD.

Age Factors↗

Treatment of chronic obstructive pulmonary disease and its exacerbations in general practice. EOLO Group. Estudio Observacional de la Limitación Obstructiva al Flujo aEreo.

The high prevalence and chronicity of chronic obstructive pulmonary disease (COPD) imply that many of these patients are treated and controlled in primary-care centres, often without contact with specialized pneumologist care. We conducted the present study to evaluate the treatment administered in stable and exacerbated COPD in GP-setting clinics and to investigate which factors could be associated with the different prescriptions. This is a cross-sectional observational study of ambulatory COPD patients. General practitioners (n = 201) were selected throughout Spain by regionally stratified sampling. We recorded the physician-reported prescription drug use in ambulatory treatment of stable COPD and acute exacerbations of COPD through a standard questionnaire. Factors independently associated with the prescription of drugs were ascertained by multiple logistic regression analysis. Of 1078 questionnaires reviewed, 1001 fulfilled quality criteria. There were 878 men (88%) and 123 women (12%); 777 (78%) were smokers or ex-smokers with a mean age of 68 years. Mean FEV1 was 47% predicted (% pred.) (SD = 13%). The median number of exacerbations was two per year (range = 0-16). Regular treatment for COPD was received by 878 (88%): the most commonly used drugs were inhaled beta 2-agonists (71%), theophyllines (53%) and inhaled corticosteroids (ICs) (50%), followed by mucolytics (25%), ipratropium bromide (23%), and oral corticosteroids (OCs) (4%). Treatment for exacerbations included inhaled bronchodilators (90%), antibiotics (89%), ICs (71%) and OCs (43%). Impairment of FEV1 was the factor most strongly associated in multiple regression analysis with increasing drug prescription in stable COPD, except for mucolytics, while the number of previous acute exacerbations was the main factor associated with exacerbation treatment except for OCs, the use of which was associated with more impaired pulmonary function. A significant number of the treatments prescribed in primary care for stable and exacerbated COPD do not follow current recommendations. Impairment in FEV1 is the factor most strongly associated with increasing prescription in stable COPD and the number of previous exacerbations is the main factor associated with exacerbation treatment.

Adrenal Cortex Hormones↗

Empiric treatments impair the diagnostic yield of BAL in HIV-positive patients.

OBJECTIVE: To investigate the influence of empiric treatments prior to fiberoptic bronchoscopy (FOB) on the diagnostic yield of BAL in HIV-positive patients with respiratory symptoms. METHOD: We studied 123 consecutive FOBs with BAL in HIV-positive patients; 101 of these patients (82%) had received previous antimicrobial treatment from 1 to 60 days. Diagnostic yield of BAL for Pneumocystis carinii, Mycobacterium tuberculosis, and bacterial pneumonia was compared between patients with and without previous empiric treatments. RESULTS: A diagnosis was obtained in 85 patients (69%), of whom 17 (20%) had multiple infections. Diagnostic yield was higher in patients without previous treatment, 91% (20/22) compared with 64% (65/101), p < 0.03. Diagnostic yield was also higher for bacterial pneumonia: seven isolations from 22 patients not receiving previous empiric treatment (32%), compared with 11 of those who had (11%; p < 0.02). The duration of empiric treatment against P carinii in patients in whom it was isolated was significantly shorter than in those in whom P carinii was not detected (3.5 +/- 1.8 days compared with 5.2 +/- 2.4 days; p = 0.003). FOB permitted a change in treatment in 62% of patients with a final diagnosis. CONCLUSION: This study demonstrates that empiric treatments prior to FOB significantly impair the diagnostic yield of BAL in detecting common pathogens in HIV-infected patients with respiratory symptoms.

AIDS-Related Opportunistic Infections↗

[Theophyllines of 12- and 24-hour sustained-release. Comparative study].

To compare 24-h and 12-h delayed-release theophylline in asthmatic patients, in terms of clinical stability and respiratory function, side effects and required dose, clinical tolerance and plasma concentrations. Patients with bronchial asthma in stable phase taking theophylline every 12 h were selected. Each patient received 12-h (treatment A) and 24-h (treatment B) theophylline formulas in a prospective, cross-over study with paired data for periods of 15 days. We evaluated theophylline doses, blood levels, clinical course, lung function and side effects. Twenty patients were enrolled. No significant differences between the two treatments were observed in mean dose of theophylline per kg body weight required to obtain therapeutic plasma concentrations (treatment A: 9.36 +/- 1.88 mg/kg/day; treatment B: 9.6 +/- 1.7 mg/kg/day). Mean blood level just before administration of a the next dose was lower with the 24-h formula, but still within therapeutic margins (treatment A: 7.31 +/- 2.27 micrograms/ml; treatment B: 10.66 +/- 2.86 micrograms/ml; p = 0.002). There were no differences in side effects after the adjustment period or in FEV1 after each treatment period. Peak expiratory flow remained stable during the study. The 24-h delayed release theophylline formula was similar to the 12-h formula in dose required by asthmatic patients and in therapeutic plasma concentrations throughout the day.

Adult↗

[Pulmonary and laryngeal tuberculosis. Study of 26 patients].

A description is reported of tuberculosis cases (TBC) with symptomatic laryngeal involvement diagnosed and treated from 1982 to 1994. Twenty-six out of 2,800 (0.9%) patients diagnosed with TBC had laryngeal symptoms. Twelve patients underwent laryngeal biopsy and the disease was diagnosed in 11; the remaining 15 patients were diagnosed on the basis of the typical lesions at laryngoscopy and resolution with specific therapy; in all of them there was a pulmonary TBC associated. The mean time of clinical laryngeal symptoms was five months and the most common symptom was dysphonia. There were factors which increased the risk for TBC in 16 patients (61.5%), alcoholism being the most common symptom in 10 (38%) patients. X-Ray examination revealed bilateral infiltrates or cavitation in 81% of patients. Sputum examination for acid-fast bacilli was positive in 15 (58%) and culture for Mycobacterium tuberculosis was positive in all of them. All patients adhered correctly to the therapeutic regimen and the clinical course was towards healing: no patient had laryngeal carcinoma after one year of follow-up. The incidence of symptomatic laryngeal TBC in our environment is low and usually presents in patients with risk factors, particularly alcoholism, with a long evolution of the disease and associated with extensive pulmonary TBC. The coexistence with laryngeal carcinoma is exceptional; therefore, when the association of laryngeal symptoms and active pulmonary TBC is present it is reasonable to reserve the laryngeal biopsy for those patients with lymph node enlargement, risk factors, or when symptoms persist after a correct therapeutic regime has been instituted.

Humans↗

[The use of human gamma globulin in the treatment of common variable immunodeficiency].

BACKGROUND: The indication for treatment with human gammaglobulin in patients with primary hypogammaglobulinemia is well established. Nonetheless, there are no uniform criteria with regard to dose, periodicity and route of administration. METHODS: Twenty-seven patients with common variable immunodeficiency (CVI) who received i.m. or i.v. treatment with gammaglobulin were studied, evaluating the secondary effects, stable levels of IgG achieved, control of symptomatology, clinical evolution and the need for adjuvant therapies. RESULTS: Intravenous administration was more effective than intramuscular administration to achieve higher total IgG serum levels (5.2 +/- 1.2 vs 3.5 +/- 1.6 g/l; p = 0.07) in a shorter period of time (2.1 +/- 1.6 months vs 6.3 +/- 2.8 months; p < 0.01) and with new few secondary effects. The dose and periodicity of the treatment was individualized in each patient on the basis of the needs of consumption and the speed of metabolism of the gammaglobulin, with patients with chronic bronchial suppuration and diarrhea being those requiring the greatest doses (p < 0.0001) and a short interdosis time interval (19.2 +/- 3.1 vs 23.6 +/- 3.6 days; p = 0.01). Treatment with human gammaglobulin allowed the control of recurrent bacterial infection; however, adjuvant treatment with respiratory physical measures and antibiotics were required in patients with chronic bronchial suppuration to avoid progressive alteration of respiratory function. CONCLUSIONS: The administration of human gammaglobulin at adequate doses and frequency is effective to control infection, avoid the development of chronic bronchial disease, alteration of pulmonary function and the appearance of other complications. Intravenous route is safer and produces fewer secondary effects than intramuscular administration with the doses and period of the treatment requiring individualization for each patient.

Adolescent↗

[The use of fibrinogen-thrombin via endoscope in the treatment of massive hemoptysis].

We assessed the efficacy of fibrinogen-thrombin instillation through the fiberoptic bronchoscope to treat massive hemoptysis in patients to whom embolization of bronchial arteries was not available, was contraindicated or had failed. The fibrinogen-thrombin solution used was Tissucol, which in addition to 2% fibrinogen and 4 U/ml of thrombin, also contained factor XIII an aprotinin. The fibrinogen-thrombin solution was instilled with the aid of the Duplojec system and a 70 cm x 2 mm 4-way catheter. In 53 of the 628 fiberoptic bronchoscopies performed during the study, the indication was hemoptysis > or = 150 ml/12 h. Of these, bronchoscopic instillation of fibrinogen-thrombin was indicated in 5 cases because bronchial artery embolization was impossible. The point of bleeding was located by bronchoscopy in all cases and fibrinogen-thrombin instillation controlled hemoptysis immediately and throughout the follow-up period, which ranged 4 to 10 months. Morning expectoration of blood (< 10 ml) was observed in only 1 patient in the 3 days after treatment. The mean time taken for bronchoscopic exploration was 3 minutes (range, 2-7). In all cases fiberoptic bronchoscopy was performed without complications that might have required the procedure to be suspended. We conclude that the local use of fibrinogen-thrombin or fibrin glue instilled through the fiberoptic bronchoscope to the point of bleeding is a simple, fast and cheap way to control massive hemoptysis on a short and long-term basis.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗