PubMed Health⌕ Search

Biomedical subjects

T Nikolaus

Publications and source records attributed to T Nikolaus.

67 records · Page 4Linked to original sources

Effects of Acipimox on plasma lipids and biliary lipids in healthy subjects.

The effects of Acipimox (5-methylpyracine-2-carboxylic acid-4-oxide, 3 X 250 mg/day) on plasma lipids, lipoproteins, and biliary lipids were studied in 14 healthy male volunteers using a double blind cross-over design. There was a significant (P less than 0.05) rise of HDL-cholesterol by 9.8%, while effects on other lipids and lipoproteins were small and insignificant (total cholesterol minus 6.5%, LDL-cholesterol minus 11.8%, free cholesterol minus 4.2%, total triglycerides plus 13.5% and phospholipids plus 3.9%). There was a significant rise of the HDL-cholesterol/LDL-cholesterol ratio by 23.6% (P less than 0.02) and of the HDL-cholesterol/total cholesterol ratio by 16% (P less than 0.05). Apolipoproteins AI, AII, and B were not significantly affected. The ratio of HDL-cholesterol/Apo AI increased significantly (P less than 0.05), and the ratio of HDL-cholesterol/Apo AII rose from 1.22 to 1.32 (P less than 0.05), while the ratio LDL-cholesterol/Apo B fell from 1.96 to 1.73. The composition of HDL and LDL, therefore, must have been altered by Acipimox. The relative cholesterol concentration in bile was significantly (P less than 0.05) increased by treatment with Acipimox, while bile acids and phospholipids were not significantly affected. The lithogenic index rose significantly by 15.1% (P less than 0.02) as calculated according to Admirand and Small, while calculations according to Hegard and Dam yielded a slight insignificant rise (P less than 0.1). The findings suggest that treatment with Acipimox might be associated with an increased risk of cholelithiasis. However, only long-term epidemiologic studies can ultimately demonstrate whether or not Acipimox increases the risk of gallstone formation.

Adult↗

[The effect of lipid level lowering diets on bile lipids and plasma lipoproteins in normal persons].

The effects of two fat-modified diets, one rich in polyunsaturated and the other in oleic acids, were studied in 10 healthy young males with regard to bile lipid composition, plasma lipids and lipoproteins. The two experimental diets were given for 2 weeks each and findings compared with those from the subject's normal diet. The fat-modified diets had marked but comparable effects on plasma total cholesterol (decreases by 23% and 16% respectively), on LDL-cholesterol (decreases by 27% and 17% respectively) and on HDL-cholesterol (decreases by 26% and 27% respectively). HDL apolipoproteins A-I and A-II were unaffected. Therefore, the apo A-I/HDL-cholesterol and apo A-II/HDL-cholesterol ratios significantly increased. The "lithogenic index" as a measure for the relationship of cholesterol to bile acids and phospholipids, and thus for the solubility of cholesterol in gallbladder bile, was not affected by the lipid lowering diets, which therefore should not increase the risk of cholelithiasis.

Adult↗

[Epidemiology of accidental falls in the elderly].

INTRODUCTION: There is a lack of epidemiological data on falls and fall-related injuries for the aged population in Germany. The purpose of the article is to present the available data focusing on the incidence of the fracture types that carry the highest risk for mortality, hospitalization and persisting disabilities. METHODS: The paper reports on a 10% representative sample that was drawn by the Federal Bureau of Statistics. A medline search for 1980-1998 was performed to identify relevant articles. The OECD database was used for mortality rates after injurious falls. If no sufficient data were published for Germany, incidence rates of demographic comparable European regions are reported. RESULTS: The number of fractures of the lower extremity (ICD 820-829) followed by hospitalization was 139,000 in 1996 for elderly (65+ years). Fractures of the upper extremities (ICD 810-819) requiring hospitalisation were reported for 65,000 persons aged 65+ years and head trauma (ICD 850-851) followed by hospitalization in this age group for 29,000 persons. There remains an information gap on the incidence of falls and fall-related sequelae without hospitalization in Germany. CONSEQUENCES: Facing, the demographic transgression the prevention of falls and fall-related injuries gains a high priority. Operative management and rehabilitation procedures for elderly trauma patients should be further evaluated and improved.

Accidental Falls↗

[Diagnostic house call within the scope of inpatient geriatric assessment].

The value of a diagnostic home visit as part of hospital-based geriatric assessment was examined in a prospective study. 141 subjects admitted from home to the geriatric hospital and showing functional decline with risk of nursing home placement underwent a comprehensive geriatric assessment and a diagnostic home visit. In 19.1% of the patients, the diagnostic visit resulted in a change of time, and in 14.9% in a change of location of discharge. Up to seven problems were newly discovered (mean 2.1). To maintain independence up to six technical aids were prescribed (mean 2.3). The most common recommendations were related to safety (59.2% of all cases). In 89.3% the diagnostic home visit was judged necessary by the home intervention team. A follow-up visit after 3 months revealed that about 80% of all recommendations were implemented and approximately the same amount of technical aids were still used. The diagnostic home visit allows individual prescription of technical aids, when necessary. It contributes meaningful information to the geriatric assessment process and helps to achieve successful in-hospital therapy and discharge planning. It can be recommended especially for elderly patients at risk for losing their independence.

Activities of Daily Living↗

[The "Geriatric Assessment" Study Group (AGAST): recommendations for the use of assessment procedures].

This work presents preliminary recommendations for a three-step geriatric assessment approach developed by a newly created working group consisting of members from nine geriatric departments in Germany and Switzerland. The recommendations were based on a literature review, expert consultation, and a consensus meeting. As part of this effort, instruments and guidelines for selected geriatric assessment instruments were translated and will be tested in German language. Further research is planned for refining the recommended method. Currently, these recommendations might help to stimulate the spread of geriatric assessment method in German-speaking areas and facilitate joint research projects among geriatric institutions.

Activities of Daily Living↗

[Diagnosis of depression in the elderly. The "Geriatric Depression Scale"].

Psychiatric diseases are very common among elderly people. Depressions rank before dementias in this age group. 2-2.5 million people aged over 65 years are suffering from symptoms of depression in Germany. Patients with Mayor Depression Disease (MDD) have a poor prognosis. MDD should therefore be recognized and treated in community dwelling elderly, in nursing homes and in hospitals. Underdiagnosis of MDD is well documented in the medical literature. Only a quarter of patients with a MDD are detected. By a short screening test for depression such as the Geriatric Depression Scale (GDS) depressed patients can be identified. With a sensitivity and specificity of about 70%. The time needed to perform the short form of the GDS is only 5-7 min. The GDS is an important part of many assessment programs in England and USA. It is also recommended in Germany by the "Geriatric Assessment" working group.

Aged↗

Effectiveness of hospital-based geriatric evaluation and management and home intervention team (GEM-HIT). Rationale and design of a 5-year randomized trial.

In this ongoing randomized controlled trial the effectiveness of an interdisciplinary team implementing hospital-based comprehensive geriatric assessment (CGA) and home intervention is being studied. All patients admitted from home showing functional decline with impairment of any basic activity of daily living are randomly assigned to one of the following courses of treatment: CGA with in-hospital and post discharge management by a home intervention team (HIT), where necessary (group 1): CGA with recommendations and usual care at home (group 2); or usual hospital and home care (group 3). The HIT consists of 3 nurses, 1 geriatrician, 1 physiotherapist, 1 occupational therapist, and 1 social worker. 540 patients will be recruited for the trial, which will assess the effects of GEM-HIT on the following outcomes: health status, functional status, survival, hospital readmission, nursing home placement and costs. The purpose of the GEM-HIT trial is to answer many of the current questions concerning treatment and health care delivery for frail older persons under the specific conditions found in Germany. The large sample size and the broad range of diagnoses included in the study will allow the evaluation of effects of GEM-HIT for subgroups and may help to identify the most effective assessment tools for use within our particular context.

Activities of Daily Living↗

[The geriatric team in transitional patient management].

The transition team has its place in pre- and postdischarge nursing and therapeutic care, on the basis of a geriatric assessment. Core members of the team are, in the sequence of the scheduled performance in-hospital, nurse, occupational therapist, physiotherapist and social worker, supplemented by a team physician. Two-thirds of all treatments were in the hospital, one-third in an outpatient setting up to 4 weeks after discharge. Cooperation with outpatient services has been good.

Activities of Daily Living↗

[Functional assessment of elderly patients in a general practice].

To evaluate functional disabilities in elderly patients, geriatric assessment was performed in one general practice. Excluded from the study were patients with severe dementia and dependence. 178 patients were asked to participate and 144 accepted (mean age 78.7 +/- 5.8 years; number of diagnoses 5.2 +/- 2.6; f = 95, m = 49). Mini-mental-status examination showed moderately but significantly lower (p < 0.05) cognitive capacity in the age groups of 80-84 years (n = 37, 24.56 +/- 4.90 points) and of 85 years and older (n = 30, 25.14 +/- 3.11 points), but not in the group of 75-79 years (n = 46, 26.70 +/- 3.90 points) compared to the group of 70-74 years (n = 31, 27.65 +/- 2.59 points). Neither the Geriatric Depression Scale nor the Barthel-Index (activities of daily living) showed significant differences between the age groups. The score of the instrumental activities of daily living (Lawton Index) was significantly lower (p < 0.05) in the age group 85 years and older (4.1 +/- 2.5 points) compared to the age group of 70-74 years (6.1 +/- 2.4 points). Grip strength was significantly reduced (p < 0.01) in the age group 85 years and older as well as motility and balance scores (Tinetti test; p < 0.05) compared to the group of 70-74 years (43.21 +/- 16.27 kp and 64.87 +/- 19.81 kp, resp., 19.3 +/- 6.6 and 23.1 +/- 5.9 points). No correlation was found between the results of functional assessment and number of contacts with the general practitioner in the past year, number of prescribed drugs and number of diagnoses except for the depression test. There was a significant correlation between test score, number of contacts, and number of diagnoses (p < 0.05). Functional assessment resulted in new diagnoses of urinary incontinence in 7 patients and of mobility disorders in 17 patients. Cognitive impairment was suspected in 14 patients, depression in 2 patients.(ABSTRACT TRUNCATED AT 250 WORDS)

Activities of Daily Living↗

[Social aspects in diagnosis and therapy of very elderly patients. Initial experiences with a newly developed questionnaire within the scope of geriatric assessment].

To evaluate social aspects of elderly patients which are important for diagnosis and therapy within geriatric assessment, a questionnaire was developed and validated. Raters showed a high degree of agreement on the scale, which contains social contacts and support, activities, economic situation, and housing conditions (0.92-0.97; p < 0.05). Compared to the interrater reliability the test-retest reliability was somewhat lower (0.75), but also significant at the 5% level. The internal consistency showed high values between 0.72-0.89. In order to evaluate the validity of the screening test the answers of the patients were compared with the assessment of the therapeutic team. The team had information from a home visit, patients spouse, relatives, neighbors, community nurses and/or general practitioners. There was a significant relationship (p < 0.01) between therapeutic assessment and the scale (r = 0.51). Sensitivity, specificity, and total efficiency also attained sufficiently high values at a cut-off of 16/17 for the complete scale (max. 25 points). The test is easily and quickly performed; its acceptance is high. Social data relevant for treatment and discharge planning can thus be obtained and patients can be identified, for whom a home visit seems to be useful.

Activities of Daily Living↗

[Problems of geriatric patients with managing drug containers].

The purpose of the study was to measure the prevalence of difficulties in elderly inpatients in opening a range of common commercial drug packagings, in breaking a bar-scored tablet, and in reading medication instructions. Sixty-seven patients (female: 47; male: 20, mean age: 81.6 +/- 6.1) who reported that they had managed their medication independently before hospital admission, underwent a comprehensive geriatric assessment. They were also asked to remove tablets and drops from various commercial drug packagings and a "dosett", to break a tablet, and to read medication instructions enclosed in the packings. Only 21 patients (31%) were able to perform all tasks. Thirty-one patients (46.3%) failed in opening the "push and turn" bottle and 44 patients (65.7%) were unable to open the flip-top container. There were significant differences (p < 0.05) in age, cognitive capacity, handgrip, and manual dexterity between the patients who were able to perform all tasks, and those who were not able to do so. Many of the common medication packagings impede a reliable management of drugs by elderly patients.

Aged↗

[Effectiveness of multi-factorial intervention for reducing falls with proximal femoral fractures in homes for the aged and nursing homes. Goals and study design of a population-based study].

The article presents the design of an open controlled, non-randomized population based intervention trial in institutionalized elderly that will be performed in Ulm/Germany starting in 1998. The multimodal intervention includes education, counseling, training, and hip protectors as well as information on potential environmental modifications in nursing homes. Two historical and one geographical control group will be formed. All institutionalized elderly will be assessed by means of the Minimum Data Set of the Resident Assessment Instrument. The intervention will last 12 months. The main objective is to test a model for cost-effective reduction of proximal femoral fractures in institutionalized elderly and to demonstrate its effectiveness.

Accidental Falls↗