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Biomedical subjects

C Swine

Publications and source records attributed to C Swine.

At least 19 recordsLinked to original sources

Does negative expiratory pressure (NEP) during spontaneous breathing predict respiratory impairment in elderly?

OBJECTIVE: The purpose of this study is to assess whether expiratory flow limitation (FL), as measured by applying a negative pressure at the mouth during tidal expiration, can evaluate the respiratory impairment in elderly patients. METHODS: The study was carried out in 67 consecutive elderly inpatients (24 men and 43 women). Negative expiratory pressure (NEP) of -5 (NEP 5) and -10 (NEP 10) cm H2O were applied during spontaneous tidal expiration. According to the results of the NEP technique, the patients were stratified in two categories: not flow limited and flow limited. We realized then classic forced expiratory manoeuvres (FEV1, FVC) and clinical evaluation of dyspnea (NYHA). According to the values of the lung function data, elderly patients were then divided in 3 groups (normal, obstructive, restrictive). RESULTS: The sensitivity, the specificity, the positive and negative predictive values for the diagnosis of obstructive syndrome by the presence of flow limitation during NEP 5 were 53, 74, 45, 79% respectively and 58, 83, 58, 83% respectively during NEP 10. These findings show that the correlation between FL obtained by the NEP technique during spontaneous breathing and spirometry is not very good despite the fact that both were well correlated with dyspnea score. CONCLUSIONS: In clinical practice, faced with an elderly dyspneic patient unable to perform maximal expiratory manoeuvres, the evaluation of flow limitation by NEP technique seems nor to be reliable to predict an obstructive functional impairment nor to be able to explain the origin of his dyspnea.

Aged↗

The opinion of general practitioners on the treatment of prostate and breast cancer in elderly people: results of a survey based on clinical models.

AIMS: Several publications have reported age-related differences in the management of people with cancer. Most data have been derived retrospectively from hospital or cancer-centre databases. The aim of the present study was to identify major decisional factors observed in general practitioner (GP) practices, outside the hospital setting, regarding the clinical management of patients with prostate and breast cancer. MATERIALS AND METHODS: During three national GP meetings in Belgium, questionnaires presenting two simulated patient cases were presented to GPs who were asked two questions: one regarding further staging and referral of the case and the second regarding the treatment of the case. A total of 678 questionnaires were distributed. GPs received two randomly selected cases each: a breast cancer history and a prostate cancer history. Three variables were assessed simultaneously: age, performance status and medical history (comorbidity). RESULTS: The analysis indicated that elderly patients were more likely to be referred for non-curative treatment (OR 13.71; 95% CI 5.67-33.12; P < 0.0001 for prostate cancer and OR 17.67; 95% CI 4.04-77.31; P < 0.0001 for breast cancer). The other variables (performance status and medical history) did not affect treatment orientation. However, GPs were prepared to seek assistance from oncologists in both cases, irrespective of the patient's age. CONCLUSION: Age seems to be more important among GPs in deciding how to manage cancer patients than performance status and comorbidity. This is a very common prejudice. They are, nevertheless, inclined to refer people with cancer to oncologists independently of the patient's age.

Age Factors↗

Evaluation of the European Academy for Medicine of Ageing "Teaching the Teachers" program (EAMA course II 1997- 1998).

The European Academy for Medicine of Ageing, founded by professors in geriatric medicine, provides a geriatric education program for European postgraduate physicians in geriatric medicine who are future academics in geriatric medicine in their countries. The course is organized for 30 participants involved in four one week residential sessions over two years. The program of each session involves 20 teachers, and includes state of the art lectures, student's lectures and working-group discussions. A first course took place in 1995-96, a second in 1997-98, a third has been accomplished in 1999-00, a fourth for 2001-02 and a fifth is ongoing for 2003--2004. The sessions are subjected to an evaluation program regarding the skills of the students, the value of the presentations and the satisfaction about the educational activities. The evaluations of the four sessions of EAMA course II (1997-1998) are presented here, with emphasis on the changes across the sessions for the whole group and for the individual students. The results are good to excellent for the main goals of the course, both by self-evaluation and by peer-evaluation. The dynamic process of this European academic-oriented geriatric education program attracts an increasing number of participants seeking the necessary skills and expertise to obtain academic position in geriatrics, and to meet international colleagues for further collaborative opportunities. Changes and adaptations of the following programs are fostered by the evaluation program to enhance weaker points. Accordingly, improvements in the programs and in the evaluation methods have been introduced during the third course, and are tested during the fourth and the fifth course.

Academies and Institutes↗

The medical management of primary open-angle glaucoma in the elderly patient.

Glaucoma is a frequent cause of blindness in the elderly. It is defined as a neuropathy of the optic nerve for which the main risk factor is an elevated intraocular pressure. The management of glaucoma is described with an emphasis on diagnostic procedure and on the topical drug treatment. The potential side effects of these drugs are discussed from the geriatric point of view.

Aged↗

Non-invasive ventilation for frail elderly patients with acute respiratory failure.

We describe 3 elderly patients with acute respiratory failure who received respiratory assistance with nasal bi-level positive airway pressure (BiPAP) on the ward. In these patients with poor prognostic factors, non-invasive positive pressure ventilation was preferred as a reasonable alternative to invasive ventilation; indeed, their admission to the intensive care unit for mechanical support was considered inappropriate. Despite the small number of patients and limited experience with the technique, BiPAP is discussed here as a possible treatment for severe respiratory failure when endotracheal ventilation is controversial, especially in frail patients 80 years of age or older, because invasive ventilation is associated with high mortality and morbidity in these patients. Two questions nevertheless need further evaluation in this setting, and are also addressed. The first is technical: can transient non-invasive breathing assistance be delivered on the ward? The second is ethical: is BiPAP a possible alternative when invasive ventilation is considered inappropriate?

Acute Disease↗

Delayed diagnosis of meningitis caused by beta-haemolytic group G. Streptococcus in an older woman.

A case of meningitis caused by group G beta-hemolytic Streptococcus (dysgalactiae, subspecies equisimilis) is reported in an 83-year-old woman. Streptococci species other than Streptococcus pneumoniae are seldom found in patients with acute bacterial meningitis, therefore, our discussion is focused on this rare organism. The question of the diagnosis of meningitis in the elderly is also addressed.

Aged↗

Epidemiological profile of geriatric patients admitted to the emergency department of a university hospital localized in a rural area.

The number of geriatric patients admitted to the accident and emergency department is growing. These patients also present increasing functional dependence and a large panel of associated diseases and associated problems. For the purpose of describing this phenomenon, we prospectively studied the epidemiology of patients 75 years and older entering the emergency department of a university hospital localized in a rural area. From January 1996 up to January 1997, 1298 patients aged 75 years or older were admitted to the emergency department. This age group represented 12.3% of all the patients admitted during the period. The gender distribution was almost equal: 56% were female and 44% male. Most of them (75%) were referred by their general practitioner although 15% came spontaneously. The most common complaints were, in decreasing order: general condition impairment (21.5%), dyspnoea (15%), falls and traumas (15%), abdominal problems (13%), thoracic pain (9%), syncope, dizziness (7%) and stroke (5.5%). Hospitalization was necessary in 69% of cases. Among the patients coming spontaneously a larger proportion (55%) were sent back home compared with only 25% of those referred by their general practitioner.

Age Distribution↗

[Innovative teaching, a successful invention: the European Academy for Medicine of Ageing (EAMA). The viewpoint of teachers and students].

INTRODUCTION: The origins of the EAMA (European Academy for Medicine of Aging) course are described in this paper by the Scientific Committee of this new post-graduate teaching activity. CURRENT KNOWLEDGE AND KEY POINTS: Innovations are constantly introduced to improve training methodology so as to enable the students to update their knowledge, help them improve their skills in data gathering and in the critical interpretation of information, and exchange geriatric experience and know-how. To reach such goals, an interactive teaching method is implemented by the professors, with world experts being called in to ensure scientific soundness and quality. Evaluations by students and teachers are regularly carried out with the aim of perfectly adjusting their training methodologies and increasing the scientific level of exchanges. FUTURE PROSPECTS AND PROJECTS: If the students progress, so do the teachers....

Academies and Institutes↗

Septic arthritis caused by Haemophilus influenzae associated with endocarditis.

Septic arthritis with Haemophilus influenzae is infrequent in adults and often associated with an extra-articular septic focus. We report the case of a septic arthritis caused by H. influenzae in an elderly (89-year-old) female patient in whom an transoesophageal echocardiogram showed an aortic valve endocarditis.

Aged↗

[Thoracic imaging in the elderly].

In our hospital, 30% of plain chest radiographs are performed in patients over 70. Somewhat surprisingly, few papers specifically dealing with the aging lung are available in the radiological literature. It is obvious however that the differential diagnosis of a chest lesion is not the same if the patient is 40 or 70. A false positive diagnosis is a frequent potential mistake in aging subjects, for example: chondral calcification versus pulmonary nodule, hyperinflation versus emphysema, "normal aging" bronchial and tracheal calcification versus hypercalcemia, diaphragmatic defect versus tumor, diaphragmatic pseudotumor versus lymph node, false diagnosis of aortic knob dissection, false diagnosis of syphilitic aortitis, inaccurate CT-detection of valvular and coronary calcifications, confusion between valvular and annular mitral calcification. Much work is still needed to exploit CT in its clinical applications for the aging lung.

Adult↗

Dyskinesia of the superior oesophageal sphincter: assessment and treatment.

Pharyngo-oesophageal dyskinesias present a common symptomatology associated with those difficulties in swallowing for which the radio-manometric assessment is well known. Radiology, nevertheless, with an overall analysis of deglutition and its iatrogenic complications, as well as manometry of the superior oesophageal sphincter (OSS) with its diversity of results, according to the material, techniques, age, sex and stress involved, has convinced us of the necessity for a supplementary dynamic examination. Electromyography (EMG), simultaneously by the inferior constrictor (IC) and cricopharyngeal (CP) muscles, analyses with precision the electric activity of these two muscles, as well as the pharyngosphincteral synchronism. It is an easy examination, reproducible and without complications. In less than one year, nineteen patients suffering exclusively from a pharyngo-oesophageal dyskinesia benefited by this complete assessment. The secondary aetiologies are clearly predominant. Gastro-oesophageal reflux represents a quarter of those detected by an anamnesis alone. EMG detects 68% of functional anomaly of the OSS; manometry finds 47% and radiology 32%. Extramucosal myotomy of the OSS concerns incomplete or uncoordinated relaxation, preferentially by left cervical approach. The preliminary results, both clinical and manometric, are very satisfactory.

Aged↗

[Aging of heart function in man].

In normal subjects at rest neither heart rate nor ejection volume are influenced by age. The loss of elasticity of the great arteries, and in particular the aorta which becomes tortuous and wider, results in an increase of impedance at ejection. At systole time pressure rises in the whole cardiovascular system, so that the left ventricle is subjected to an increase of parietal tension to which it adapts itself by hypertrophy which normalizes this tension. Ejection fraction and end-systolic volume are thus preserved, and the systolic function at rest globally remains unmodified by age. The delay and slowing down of relaxation due to hypertrophy of the left ventricle, to the reflection waves and to other changes in cardiac muscle physical properties during senescence reduce the importance of the initial phase of left ventricular filling. This major modification of diastolic dynamics at rest is compensated, at the end of diastole, by a more vigorous contraction of the left atrium, which increases its contribution to left ventricular filling. The global filling volume is thus preserved and the end-diastolic volume remains appropriate, these two conditions being necessary to start off a normal ejection. In normal subjects at exercise the cardiac function is also modified by age. Maximum heart rate is reduced in the elderly, whereas the ejection volume increases more than in younger subjects, which maintains the appropriate cardiac output. This adaptation takes place owing to an increase of cardiac volume and through Starling's mechanism which ensures a greater ejection volume. Only the maximum exercise level (VO2 max) decreases with age, mainly because of the decrease of skeletal muscle mass. Filling of the left ventricle seems to continue to rely, at rest as at exercise, on atrial compensation. Cardiac output therefore is globally maintained with age during a dynamic effort. During isometric exercise, which in the elderly results in a higher rise in blood pressure, the ejection fraction decreases, the end-systolic volume increases and the initial filling decreases but is compensated by a greater contribution of the atrium. Thus, cardiac work at rest and during exercise is well preserved in the ageing man, due to secondary homeostatic adaptations which counterbalance the primary age-related changes. The principal primary changes are loss of elasticity of the great vessels and reduction of efficacy in response to adrenergic stimulation. The principal secondary adaptations are left ventricular hypertrophy, increased atrial contribution and, during exercise, intervention of Starling's mechanism.

Adult↗