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Introduction. – Malassezia are lipophilic yeasts, saprophytic on human skin. For the past 20 years, Malassezia were thought to be involved in the pathogenesis of certain forms of head and neck dermatitis (HND). The aim of the present study was to investigate the role of this organism in HND. We also studied possible cross-reactivity with two other yeasts, Candida albicans and Saccharomyces cerevisiae.Patients and methods. – Fifty-three subjects were included: 25 patients with HND, 10 patients with generalized atopic dermatitis (AD) and 18 healthy controls. The 25 patients with HND had yeast cultures taken for Malassezia, and all 53 subjects had patch tests, skin prick tests and IgE antibody assays for Malassezia, C. albicans and S. cerevisiae. The HND patients were then treated with ciclopiroxolamine, a topical antimycotic.Results. – We found no statistically significant relationship between the results of yeast cultures, skin tests and the serological results or the results of the antimycotic treatment in these subjects. We did find increased sensitivity to Malassezia in patients with AD compared to the healthy controls, but there was no statistical difference between HND patients and patients with generalized AD. Nevertheless, for the entire group of patients, there was a significant relationship between results of skin prick tests and specific antibodies for Malassezia, C. albicans and S. cerevisiae, suggestive of possible cross-reactivity between these three yeasts.Conclusion. – The results lead us to propose two hypotheses: (1) Patients may be sensitized to yeast proteins but have no signs of an allergy requiring antifungal treatment, i.e. HND. (2) Patients with HND might be sensitized to several yeasts, and they would need systemic antifungal treatment that is active on Malassezia and C. albicans and, in addition, a S. cerevisiae-free diet. [Copyright &y& Elsevier]

The renal transplantation is nowadays the reference treatment of ESRD. Living donor kidney transplantation is less often performed in France than in other countries. Nevertheless, numerous French and international surveys have evidenced that it provides the recipients a longer life expectancy and a better quality of life. Donors themselves, what do they become? How are they? For the first time in France, a survey has been implemented to investigate the quality of life of living kidney donor to one of their close relations. This study has been undertaken by the Agency of the biomedecine and the service Clinical Epidemiology and Evaluation (EEC), of the University teaching hospital of Nancy. The main objective was to describe the quality of life of the living donors having given a kidney for more than a year and less than 5 years. The secondary objective was to contribute to the knowledge of the main factors associated to the living kidney donor quality of life, one year after the donation. Participants had to be living in France at the time of the donation which had taken place between June 30(th), 2005 and March 1(st), 2009. A folder gathering various self-administrated questionnaires was sent to the place of residence of the donor between March and April, 2010. These data were completed by medical data collected near the transplantation centres by the Agency of biomedecine within the framework of the register CRISTAL. They included the characteristics of the donation and of the donor at the very time of the donation, 3 months after the donation and at the last annual assessment. Three living donors in four, that is 501 persons, agreed to fully participate. They constituted a representative national sample of all the living donors of this period. The non participants were younger (4.5 years on average) and had a less adequate annual follow-up. The women were more represented (61 %) than men. The median age was 53 years. More of 2/3 were employed at the time of the survey. The three main categories of donors were ascendants (36 %), collateral (33 %) and spouses (26%). The donation decision was taken without hesitation (94 %) and at an early stage of the evolution of the recipient renal disease (64 %). The delivered information was considered globally satisfactory except for the painful consequences and for the scar. The living donors were, long after their donation, in an excellent physical health state according to the SF36 summarized physical score and this especially when they were old as compared to the same age and sex general population. This phenomenon highlights the drastic selection of the potential donors. The only factor influencing the level of long term physical health was the surgical technique: the 261 subjects having undergone a coelioscopy had less often presented post operative pain (OR=0.5; 0.3-0.8; P<0.002) and had more often recovered completely without any residual pain (OR=1.7; 1.2-2.5; P<0.004). The quality of life mental dimension according to the SF36 summarized mental score was very close to that of the same age and sex of the general population although a slightly lower. It is influenced by characteristics related to the way the donation had been lived, particularly the understanding of their donation by their circle of acquaintances (average score 74.2/100), the perception of a feeling of owing on behalf of the recipient (46.5 %) and the fact of having lived a competition to be retained as the donor (for 266 cases another potential donor did exist and 21 lived the donation as a strong competition). More than 84 % of the donors was still followed by a healthcare professional at the time of the survey. The main expressed complaints concern the quality of the medical follow-up (70 donors expressed themselves openly on this topic) and the pain and scar after effects of the intervention. In spite of the surgical complications, of the dissatisfactions regarding their medical follow-up, of dismissals or of necessary adjustments of their professional life (13 %), of their difficulties to carry heavy loads, of sometimes complex relations with the recipient (23 % positive, 10 % negative) or their circle of acquaintances, of expenses non reimbursement and of losses of salary (12 %), they would be 95 % to recommend the donation and if it was to be redone 98 % would do it again! Benefits brought to the recipient won largely over the encountered difficulties. This retrospective and cross-sectional study allows to state recommendations which have to be confirmed by the 2009-2012 longitudinal study: to favour the coelioscopy which offers an advantage in terms of less frequent pain and a better post operative recovery, to better understand the phenomena of competition between potential and donors recipients, to improve the information about the potential consequences of the donation on the pain and on the scar, to inform the donor about the importance to associate the proxies with the decisionmaking or at least with the discussion and finally to improve the society recognition of the donation., (Copyright © 2011 Elsevier Masson SAS. All rights reserved.)

Purpose: Smoking has been involved in the failure of antimalarial therapy in patient with chronic or subacute erythematosus lupus., Methods: We report a prospective study of 26 patients with chronic, subacute or systemic erythematosus lupus who were treated with antimalarials. Several variables including smoking are compared in responders and non-responders., Results: Despite the reduced number of patients study that does not permit to allow significative results, it seems that among responders and non-responders, in other respects comparables, there is no difference in the presence of smoking, its quantity or its duration., Conclusion: The significance of molecular interactions between some components of tobacco and antimalarials have still to be established.

Background: In patients with congestive heart failure (CHF), clinical trials have demonstrated the benefit of a number of drugs on morbidity and mortality. Nevertheless so far, there is no published controlled study of long-term antithrombotic therapy in patients with CHF. The aim of this work was to identify the relationship between cardiovascular drug use, especially antithrombotic therapy, and survival of CHF patients in current clinical practice, using an observational, population-based database., Methods: The EPICAL study (Epidémiologie de l'Insuffisance Cardiaque Avancée en Lorraine) has identified prospectively all patients with severe CHF in the community of Lorraine. Inclusion criteria were age 20-80 years in 1994, at least one hospitalisation for cardiac decompensation, NYHA III/IV HF, ventricular ejection fraction < or =30% or cardiothoracic index > or =60% and arterial hypotension or peripheral and/or pulmonary oedema. A total of 417 consecutive patients surviving at hospital discharge were included in the database. The average follow-up period was 5 years. Univariate Cox models were used to test the relationship of baseline biological and clinical factors to survival. Cardiovascular drug prescriptions were tested in a multivariate Cox model adjusted by other known predictive factors., Results: Duration of disease >1 year, renal failure, serum sodium > or =138 mmol/l, old age, serious comorbidity, previous decompensation, high doses of furosemide and vasodilators use were independently associated with poor prognosis at 1 and 5 years. Oral anticoagulants, aspirin, lipid lowering drugs and beta-blockers use were associated with better survival. There was no interaction between aspirin and angiotensin converting enzyme inhibitor use on survival., Conclusion: Antithrombotic therapy was associated with a better long-term survival in our study population of severe CHF. These results together with other previously published circumstantial evidence urge for a prospective, controlled and randomised trial specifically designed to evaluate optimal oral anticoagulants and aspirin in patients with congestive heart failure., (Copyright 2002 European Society of Cardiology)

Food allergy to cow's milk proteins (APLV) is frequently found in young infants. Treatment is by starting an elimination diet. Different substitution products have been proposed: soya milk, partial hydrolysate of the proteins of lactoserum, powdered casein hydrolysate, hydrolysed soya and pork collagen. Allergic reactions to soya milk, hydrolysates of lactoserum proteins, powdered casein hydrolysates and hydrolysates of soya have been described. The study that we present evaluates the effect on the natural development of these allergies of a formula based on amino-acids (Neocate) in 26 patients who presented a syndrome of multiple allergies one of which was a food allergy to milk. Twenty-five of them had a severe atopic dermatitis, isolated (14 cases), or associated with gastro-intestinal troubles (6) break in the growth curve (5), anaphylactic reactions (2), one asthma (1). One child had a chronic diarrhoea associated with a weight plateau. Evaluation 2 or 3 months later showed a significant improvement of the atopic dermatitis. Return of the stature-weight growth was noted in 4 children from 5, the check in one was reported as due to a initially unrecognised allergy to gluten. The recovery of the APLV was shown by double-blind oral provocation test in 20/23 children between 11 and 37 months (22 +/- 9). Duration of administration of Neonate was between 6 to 19 months (12 + 5) months. This study confirmed the beneficial effect of the amino-acid formula on weight gain, gastro-intestinal troubles and development of atopic dermatitis. The level of recovery of APLV of 86% at the age of 2 years is better than that reported in the syndrome of multiple food allergies of 22%. The influence of this diet on the development of other food allergies remains to be evaluated.

Objectives: Several studies suggest a beneficial overall effect of spa therapy in chronic musculoskeletal diseases. The present open controlled study investigated the effects of spa therapy at Bourbonne-Les-Bains, France, in patients with hip or knee osteoarthritis or low back pain., Patients and Methods: In 1998, 102 men and women older than 50 years were included in the study. All had low back pain or lower limb osteoarthritis, and none had contraindications to spa therapy. Quality of life was assessed three times at intervals of 4 weeks, twice before and once immediately after 3 weeks of spa therapy, using the Duke Health Profile (five dimensions and five dysfunctions)., Results: Mean age was 66.4 years, and 67% of the patients were women. Quality of life was markedly decreased as compared to the population at large (1996, CFES). The two pretreatment evaluations produced similar quality-of-life scores. Spa therapy was associated with significant improvements in overall quality of life (P=0.004), self-esteem (P=0.009), and pain (P=0.01)., Conclusion: These findings support those of other studies conducted in France and in other European countries. They indicate that patients report meaningful improvements in their quality of life after spa therapy.

Objectives: Normal values for hemoglobin and hematocrit have been established for healthy young adults, but it is unknown whether age-related decline in hematological values occurs in the elderly. We compared normal values of hematological parameters in healthy adults and healthy persons aged 65 years and over using flow cytometry., Subjects and Methods: Erythrocyte and reticulocyte parameters were determined in 585 subjects (294 men and 206 women aged 26 to 64 years, and 37 men and 48 women aged 65 years and over), living independently and without medication, symptom and disease, using Technicon H1 (Bayer) and R2000 (Roche) analyzers. Serum erythropoietin levels, red cell folate and creatinine clearance were determined in subjects aged 65 years and over., Results: Irrespective of subject age, hemoglobin (Hb), hematocrit (Hct), red blood cell count (RBC), mean cell volume (MCV), mean corpuscular hemoglobin (MCH) and mean corpuscular hemoglobin concentration (MCHC) were higher in males than in females, but sex-related differences tended to decrease with aging. In males, there was a trend toward lower Hb and Hct with aging, due to an increase in RBC, MCV and MCH. In females, Hb and Hct (p < 0.05) increased with aging, due to a trend toward higher values of RBC, MCV and MCH. Red blood cell distribution width and hemoglobin distribution width were not modified by aging. Despite these age-related changes in erythrocyte parameters, values for anemia defined in adults appear appropriate for geriatric subjects (Hb < 130 g/l in males and Hb < 120 g/l in females). Reticulocyte count and creatinine clearance decreased in men and women aged 65 years and over (p < 0.05), whereas erythropoietin levels and red cell folate were not influenced by aging., Conclusion: Normal erythrocyte values defined in adults are appropriate for evaluating hematological test results in older individuals. The decrease in reticulocyte count observed in men and women aged 65 years and over does not appear to be linked to a decrease in erythropoietin production with aging.

The objectives of this study are to describe the management, outcomes and costs of patients with severe chronic heart failure (CHF) and to identify the associated socio-demographic and clinical determinants. In 1994, the EPICAL study enrolled in a French region a representative cohort of 358 patients presenting for the first time with severe CHF (NYHA class III or IV) requiring hospitalization. The mean annual cost per patient was 125 652 FF, 92.6 per cent of which was associated with in-patient care including the index hospitalization. Ten per cent of patients contributed 33 per cent of the total cumulative costs. The rate of readmission was very high (20 per cent per month of follow-up) and appeared as a major cost driver. Three variables were identified in a multivariate logistic regression as the main contributors to cost: the presence of co-morbidity, renal insufficiency and marital status (living alone versus with spouse). These findings confirmed the major clinical and economic interest of any intervention that could lower the rate of readmissions in this group of patients.

Adherence receptors are essential for heterotypic (endothelial cell, platelet) polymorphonuclear neutrophil (PMN) interaction. Determination of their expression level give information about activation state and functionality of PMN. Use of flow cytometry associated with an immunolabeling standard, represented by beads coated by a determined amount of immunoglobulins (Qifikit, Dako), allows analysis of specific antibody binding capacity and gives information about antigen density. Using this methodology, the exploration of surface adherence receptors, L-selectin (CD62L) and b2-integrins (CD11a-c/CD18) from PMN unstimulated and incubated with pro-inflammatory stimuli, formyl-methionyl-leucyl-phenylalanine (fMLP) and tumor necrosis factor a (TNFa), allows, on the one hand, the establishment of basal expression values on resting PNN and on the other hand, the study of PNN reactivity. This method of quantification can be applied to clinical studies as adherence receptor deficiency syndromes or inflammatory, infectious and vascular diseases.

Objectives: The purpose of this study was to determine whether antianginal medications modify the prognostic significance of exercise single photon emission computed tomography (SPECT) ischemia., Background: Antianginal medications (especially beta-adrenergic blocking agents) limit exercise SPECT ischemia, but it is not known whether such medications also modify the prognostic effect of exercise SPECT ischemia., Methods: We included 352 patients with coronary heart disease, who had exercise Tl-201 SPECT and coronary angiography, and who were initially treated medically. Survival Cox models were applied in patients for whom classes of antianginal medications taken at exercise SPECT were the same as those prescribed for follow-up (GI; n = 136), and in patients for whom new classes of antianginal medications, including beta-blockers (GII; n = 79) or not including beta-blockers (GIII; n = 113), were added for follow-up., Results: During a mean 5.3+/-1.6 years of follow-up, 45 patients had cardiac death or myocardial infarction. Variables reflecting necrosis (irreversible defect extent, left ventricular ejection fraction) and those from coronary angiography provided equivalent prognostic information in the three groups. In contrast, the SPECT variable reflecting ischemia (reversible defect extent), which provided comparable prognostic information in GI (p = 0.005) and GIII (p = 0.004), lost its prognostic significance (p = 0.54) in GII, and was associated with a lower relative risk in GII than in GI or GIII (both p < 0.05)., Conclusions: In patients with coronary heart disease, the introduction of antianginal medications, when including beta-blockers, appears to have a favorable effect on the deleterious prognostic effect of exercise ischemia.

Objectives: Characterize the incidence, clinical and etiologic features and outcomes of advanced congestive heart failure., Background: This condition is frequent, severe and costly, yet no population-based epidemiological data are available that take into account modern advances in diagnosis and therapy., Methods: The EPICAL (Epidémiologie de l'Insuffisance Cardiaque Avancée en Lorraine) study was based on a comprehensive registration of patients with ACHF (defined as hospital admission for presence of NYHA class III or IV symptoms, radiological and/or clinical signs of pulmonary congestion and/or signs of peripheral edema, left ventricular ejection fraction <30% or a cardiothoracic ratio >60%) in patients aged 20-80 years during year 1994, in the community of the Lorraine region in France (n = 1,592,263). Average follow-up for readmission to hospital and mortality was 18 months (12-24 months)., Results: From 2,576 registered patients, 499 were enrolled into the study among which, 358 were new presentations. This represents a crude incidence rate of 225 per million. 46.3% had a coronary heart disease. One-year mortality rate was 35.4% and the rate of mortality and/or readmission to hospital was 81%. Patients were admitted to hospital 2.05 times per year (64% of these for worsening heart failure), spending 27.6 days per year in hospital. Twenty received a heart transplant (4%). On discharge, 74.8% were using ACE inhibitors and 49.6% digitalis., Conclusions: Mortality and hospitalization rate of advanced CHF remain very high despite recent therapeutic progress. Major therapeutic and managed-care research is required.

Aim: Modifications of bronchial secretions in cystic fibrosis patients account for the long-lasting use of mucolytic agents, despite the lack of adequately controlled clinical studies supporting this approach. Hyperviscosity of bronchial secretions mainly depend on their high DNA content, as a result of degradation of polymorphonuclear neutrophils mobilized by infection and inflammation. This phenomenon has led to the treatment of respiratory complications with human recombinant deoxyribonuclease (dornase alfa). In the present study, we compared the clinical and respiratory outcome in patients receiving mucolytic agents followed by dornase alfa, each for 1 year., Population and Methods: Fifty-four patients, aged 5 years or more, have been prospectively followed for 2 years. They received first a 12-month association of mesna (two nebulisations per day) and oral ambroxol (60 mg per day, divided in two doses), followed by a 12-month treatment with one daily aerosol of dornase alfa only (2.5 mg per day). The primary end-points were the results of pulmonary function tests. Secondary end-points were subjective symptoms, bacterial colonization, consumption of antibiotics, and clinical tolerance., Results: At the end of the 12-month mucolytic therapy, a significant decrease of forced expiratory volume/second (FEV1, -10.5% as compared to baseline values) and forced vital capacity (FVC, -12.8%) was observed. At the end of 12-month dornase alfa, FEV1 and FVC had increased by 7.7 and 5.3%, respectively. This change was statistically significant only for FEV1 in most severely disabled patients. However, forced expiratory flow 25-75% (FEF 25-75) decreased during the 2 year period of observation, by 5.6% the first year and 4.9% the second year. The mean number of days with parenteral antibiotics did not statistically differ between both treatments, except for patients more than 15 years of age. In this subgroup, the mean number decreased from 40 days in the first year to 27 in the second year (P < 0.05). Acceptability of treatment by the patients themselves was better with dornase alfa than with mucolytic therapy. However, several episodes of hemoptysis, frequent in only one case, were associated with the treatment by dornase alfa., Conclusion: Dornase alfa was associated with a stabilisation, and even a trend to improvement in pulmonary function tests. This stabilisation is by itself a very encouraging result. Long-term comparative studies are needed to evaluate the benefits of dornase alfa in the treatment of respiratory complications of cystic fibrosis and specify the optimal modalities of its use. Synergistic combinations with mucolytic therapy and/or anti-inflammatory drugs could be viewed as a future prospect.

Objectives: We compared the ability of rest single-photon emission computed tomography (SPECT) with [123I]-16-iodo-3-methylhexadecanoic acid (MIHA) and the thallium-201 (Tl-201) rest-reinjection technique to detect myocardial viability after infarction., Background: After myocardial infarction, MIHA frequently shows increased uptake in the areas with exercise Tl-201 defects (mismatch), even in patients with an irreversible Tl-201 reinjection defect. Whether such increased uptake is indicative of ischemic but viable myocardium is not known., Methods: We studied 38 patients who 1) underwent exercise SPECT Tl-201 with rest-reinjection and rest SPECT with MIHA before undergoing percutaneous transluminal coronary angioplasty (PTCA) of an infarct-related coronary artery, and 2) were found to have successful revascularization at follow-up angiography. The relation between SPECT results before PTCA and subsequent improvement in left ventricular wall motion was assessed., Results: A mismatch was evident before PTCA in 51 of 76 infarct-related segments and correlated with subsequent improvement in wall motion (overall accuracy 71%), even for the 27 segments whose exercise defects remained irreversible after Tl-201 reinjection (overall accuracy 81%). The finding of a mismatch clearly enhanced the results provided by the finding of > or = 50% Tl-201 uptake as determined at redistribution (p < 0.05), but not as determined at reinjection, although there was a trend toward a better specificity for the findings of a mismatch., Conclusions: MIHA is an efficient marker of viability inside exercise-underperfused areas after infarction, even in patients with irreversible Tl-201 reinjection defects. Assessment by conventional SPECT of a mismatch between results obtained with a metabolic tracer (MIHA) and a flow tracer analyzed at exercise (Tl-201) as a marker of myocardial viability is a promising area of research.

As the biochemical assay, the measurement of hormone receptors by immunocytochemistry in invasive breast cancers may predict the ability of patients to respond to hormone therapy. The objective of this work is to determine the reliability of hormone receptors analysis on cytologic spreadings. Estrogen and progesterone receptors analysis was carried out in 109 invasive breast carcinomas: (1) with a SAMBA 2005 image analysis system on frozen cytologic spreadings (ER/PR-ICA, Abbott); (2) by visual evaluation on paraffin sections (ER-1D5, Dako; PR-ICA, Abbott); (3) by biochemistry (EIA, Abbott). There is a significant correlation between the three methods of hormone receptors analysis (0.716 to 0.842). The sensitivity of immunocytochemical methods ranges from 88.0 to 94.3%, and the specificity from 70.0 to 94.7%. The minimum concordance is 87.2%. This study demonstrates that immunocytochemistry of hormone receptors is a good alternative to biochemical measurement, especially when applied to cytologic spreadings. Therefore, immunocytochemistry can be used, when conventional biochemical assay cannot be performed for hormone receptors evaluation, particularly on cytoponctions.

In a randomized, double-blind study, conducted in 60 patients after caesarean section, we compared epidural morphine (5 mg) with intravenous morphine patient-controlled analgesia (PCA). Efficacy of pain relief (visual analogue scale), comfort, satisfaction and side-effects were studied. In the PCA group, pain scores were higher (P < 0.005) from the third hour onward. The degree of comfort was similar. Overall satisfaction for the first 24 postoperative hours was higher in the epidural group when assessed on a graded scale from 0 to 10, but equal when assessed using qualitative terms. Haemodynamic and respiratory tolerance were identical without any episodes of respiratory depression or oxygen desaturation in either group. The epidural morphine group showed a higher incidence of pruritus requiring specific treatment (P < 0.005). Nausea was reported to be equal in the two groups. Consumption of morphine was higher in the PCA group. We conclude that epidural morphine analgesia, though of good quality, was associated with more pruritus. Morphine PCA, although producing a lesser degree of analgesia compared to epidural morphine, gave good satisfaction.

To adapt the DUKE Health Profile, a 17-item self-report generic health related quality of life measure cross-culturally in french. A multidisciplinary expert committee was provided with three translations independent of each other, each backtranslated to the original language, and produced a synthesis version equivalent to the original. A cohort of 963 persons from the general population filled in the questionnaire twice in three months. The internal consistency was acceptable (Cronbach's alpha = 0.63-0.81) except in social dimension. Convergent validity was evidenced by a significant correlation with overall health. The test-retest reproducibility in stable subjects (601) was satisfactory (intraclass coefficient correlation r = 0.63-0.78) except in pain and disability dimensions. There was a significant modification of scores in the same direction as overall health change in subjects improved (n = 128) or worsened (n = 187). Age-adjusted scores were lower in females, in subjects with lower education, urban residency, unemployed and living alone and in subjects reporting a chronic disease. This short form questionnaire similar to the original version proved simple to use in the general population.

Objectives: This study sought to evaluate the prognostic role of exercise thallium-201 (Tl-201) single-photon emission computed tomography (SPECT) in patients with known or suspected coronary artery disease., Background: Compared with planar Tl-201 scintigraphy, Tl-201 SPECT allows enhanced assessment of myocardial perfusion abnormalities. However, the long-term prognostic value of exercise Tl-201 SPECT has not been ascertained and compared with that of other techniques of investigation., Methods: Predictors of ischemic events were sought in 217 patients with known or suspected coronary artery disease who underwent exercise Tl-201 SPECT, coronary angiography and rest radionuclide angiography and who initially received medical therapy. Predictive values were determined using Cox proportional hazards regression models., Results: During a mean (+/- SD) follow-up period of 70 +/- 19 months, 29 patients had a major ischemic event (cardiac death or myocardial infarction). Total extent of exercise defects was the best independent predictor by Tl-201 SPECT of major events (p < 0.001) and provided additional prognostic information compared with clinical, exercise testing and catheterization variables (p < 0.02). Extent of reversible Tl-201 SPECT perfusion defects provided additional prognostic information compared with extent of irreversible defects (p < 0.001) and was the sole Tl-201 SPECT variable providing additional prognostic information compared with radionuclide left ventricular ejection fraction (p < 0.02)., Conclusions: Total extent of exercise Tl-201 SPECT defects is a powerful long-term predictor of major ischemic events that enhances the prediction provided by clinical, exercise testing and coronary angiographic data. In view of its prognostic significance, extent of reversible Tl-201 SPECT defects might provide original information about improving prognosis by coronary revascularization.