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E Rasmussen

Publications and source records attributed to E Rasmussen.

At least 37 records · Page 2Linked to original sources

[Cava filter placement under MRI control. Experimental in vitro and in vivo studies].

PURPOSE: An instrument has been developed for the introduction of caval filters which can be used with MRI; it has been investigated in in vitro and in in vivo experiments. MATERIAL AND METHOD: The ferromagnetic components of a commercially available instrument for the femoral introduction of the MR-eye Tulip IVC filter were changed for similar, non-ferromagnetic parts and the lock and dilator marked with dysprosium oxide rings. The instrument was used in a flow phantom and in animal experiments (two domestic pigs) in order to insert filters under MRI control on a 1.5 T Philips Gyroscan with integrated mobile digital subtraction angiography. RESULTS: Both in vitro and in vivo, the introducer, catheter and caval filter could be identified by MRI and positioned under MRI control. The position of the filter as indicated by MRI corresponded with radiological and macroscopic findings in all cases (5 phantoms, 2 pigs). CONCLUSION: The early experimental results indicate that percutaneous introduction of caval filters with placement under MRI control is possible.

Animals↗

Pleural disease during treatment with bromocriptine in patients previously exposed to asbestos.

Bromocriptine, which is used in the treatment of Parkinson's disease, can cause adverse pleuropulmonary reactions. Exposure to asbestos can result in similar lesions. Fifteen patients with former exposure to asbestos, who developed pleural fibrosis after treatment with bromocriptine, were observed independently in Sweden (11 patients) and Australia (four patients). The patients complained of malaise, often associated with weight loss, dyspnoea, and a disturbing cough. Laboratory values included increased erythrocyte sedimentation rate and a low haemoglobin level. Lung function tests showed a restrictive lung function defect. Chest radiographs showed bilateral pleural fibrosis, with small amounts of fluid in some cases. Soon after bromocriptine was withdrawn, the patients improved clinically, and the laboratory values returned to normal. However, in most cases, pleural fibrosis and a restrictive lung function defect persisted to some extent. In conclusion, in patients who develop pleuropulmonary fibrosis whilst being treated with bromocriptine, former exposure to asbestos should be investigated. Conversely, when pleural changes develop in a patient on bromocriptine and with prior exposure to asbestos, the possible causative role of the drug should be discussed. Special follow-up may be indicated when bromocriptine is planned in a patient with previous asbestos exposure, and if symptoms or signs of pleural fibrosis develop, bromocriptine withdrawal should be considered.

Adolescent↗

Mapping the genes for haloperidol-induced catalepsy.

The strain means for haloperidol-induced catalepsy were determined in the 26 strain BXD recombinant inbred series. The ED50 values ranged from 0.55 mg/kg (strain 30) to 7.9 mg/kg (strain 2). Heritability for the catalepsy response was 0.78 and the number of effective loci was estimated to be four. The strain means were correlated with the strain distribution patterns for 1300 marker loci of known chromosomal location and polymorphic between the C57Bl/6J and DBA/2J strains. Six quantitative trait loci (QTLs) were identified at P < .01. Two of the six QTLs were confirmed in a sample of B6XD2 F2 animals (n = 144), phenotyped for haloperidol response and genotyped for microsatellites closely linked to the QTLs. The confirmed QTL on chromosome 4 is near the b locus. The confirmed QTL on chromosome 9 is closely linked to Drd2, the D2 dopamine receptor gene. One hundred of the F2 individuals were phenotyped for D2 dopamine receptor binding using the ligand [125I] epidepride as the ligand. Consistent with previous results, the nonresponsive F2 individuals showed modestly higher receptor binding in all brain regions examined: the nucleus accumbens core, the nucleus accumbens shell, the lateral caudate putamen, the dorsomedial caudate putamen, the substantia nigra zona compacta and the ventral tegmental area. The DBA/2J allele of the chromosome 9 QTL was associated with higher receptor binding in all brain areas except the ventral tegmental area. Overall, the data illustrate that either near or part of Drd2 is a QTL which has significant effects on both haloperidol response and D2 dopamine receptor binding. However, the data also illustrate that most of the genetic variance in either haloperidol response or D2 dopamine receptor binding is not associated with Drd2.

Animals↗

Comparative effects of amlodipine and felodipine ER on office and ambulatory blood pressure in patients with mild to moderate hypertension. Danish Multicentre Group.

The anti-hypertensive efficacy and safety of extended-release (ER) felodipine (5, 10 or 20 mg) and amlodipine (5 or 10 mg) once daily were compared in patients with mild to moderate essential hypertension in a double-blind, double-dummy, randomised, comparative study. One hundred and eighteen patients were randomised to receive either felodipine ER (n = 57) or amlodipine (n = 61) for 12 weeks. Efficacy was assessed by measuring office blood pressure (BP) at baseline and after 4, 6, 8 and 12 weeks, together with 24h ambulatory blood pressure monitoring (ABPM) at baseline, on day 1 of treatment and at the end of the study. The mean office BP changes from baseline to week 12 were -13.4/-11.8 mmHg for felodipine ER (mean daily dose 11.2 mg) and -15.3/-12.9 mm Hg for amlodipine (mean daily dose 7.4 mg). Changes in office BP between treatment groups were not significant. The mean 24h ambulatory BP changes from baseline to end of the study were -11.6/-10.0 mm Hg for felodipine ER and -16.3/-9.6 mm Hg for amlodipine, both significant (P < 0.01). The fall in systolic ambulatory BP was significantly greater (P < 0.001) in the amlodipine-compared with felodipine ER-treated patients but there was no difference between the groups with respect to diastolic ambulatory BP. Both drugs were well tolerated with only seven patients withdrawing because of side-effects, equally distributed between treatment groups. Headache and flushing were significantly (P < 0.05) more frequent in the felodipine ER group. Amlodipine appears to be more potent on a milligram to milligram basis and induces fewer side-effects than does felodipine ER.

Adult↗

Office and ambulatory blood pressure: a comparison between amlodipine and felodipine ER. Danish Multicentre Group.

The anti-hypertensive efficacy and safety of extended-release (ER) felodipine (5, 10 or 20 mg) and amlodipine (5 or 10 mg) once daily were compared in patients with mild-to-moderate essential hypertension in a double-blind, double-dummy, randomised, comparative study. A total of 118 patients were allocated to a 12-week, double-blind treatment with either felodipine ER (n = 57) or amlodipine (n = 61). The anti-hypertensive effect was evaluated by measuring office blood pressure (BP) at baseline and after 4, 6, 8 and 12 weeks, together with 24 h ambulatory blood pressure monitoring (ABPM) at baseline, on day 1 of treatment and at the end of the study. The mean office BP changes from baseline to week 12 were -13.4 (+/- 15.7)/-11.8 (+/- 6.9) mmHg for felodipine ER (mean daily dose 11.2 mg) and -15.3 (+/- 17.0)/-12.9 (+/- 7.3) mm Hg for amlodipine (mean daily dose 7.4 mg). All BP reductions were significant (P < 0.01) with respect to time, but differences between treatment groups were not significant. The mean ambulatory BP changes from baseline to end of the study were -11.6 (+/- 5.2)/-10.0 (+/- 2.0) mmHg for felodipine ER and -16.3 (+/- 4.4)/-9.6 (+/- 3.0) mm Hg for amlodipine, both significant (P < 0.01). The fall in ambulatory SBP was significantly greater (P < 0.001) in the patients treated with amlodipine compared with felodipine ER whereas there was no difference between the groups with respect to ambulatory DBP. Both drgs were well tolerated with a withdrawl rate of 12% equally distributed.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗

[Serology in patients with scleroderma].

In order to evaluate the practical clinical value of centromere, Scl-70, and nucleolar antibodies as demonstrated routinely by the Autoimmune Department of the Serum Institute of Copenhagen, 1293 sera from 497 patients with scleroderma (SSc) and other connective tissue diseases were tested for the three antibodies and for other nuclear antibodies. The three antibodies were found in 32, 15 and 15%, respectively, of sera from patients with SSc. Since more than one of the three antibodies was rarely demonstrated in any one serum, one of them was found in two thirds of sera from patients with SSc. The specificity of the three antibodies for SSc was 95% or more. Centromere antibody was found most frequently in patients with limited SSc. Scl-70 antibody was found almost exclusively in sera from patients with extensive SSc (involving the skin of the trunk). In such sera, centromere antibody was found in only 21%. Scl-70 antibody was overrepresented and centromere antibody was underrepresented in sera from patients with pulmonary involvement, the converse being true for sera from patients with calcinosis, esophageal involvement and telangiectasia.

Antibody Specificity↗

Nature of elevated blood pressure in normoalbuminuric type I diabetic patients. Essential hypertension?

This study was undertaken to characterize type I diabetic patients with essential hypertension with respect to kidney function, renal hormones, and endothelial function. After 4 weeks without antihypertensive treatment, a cross-sectional study was carried out in the following groups: group 1, 14 healthy controls; group 2, 13 nondiabetic patients with essential hypertension (blood pressure > or = 140/90 mm Hg); group 3, 11 type I diabetic patients with hypertension but urinary albumin excretion (UAE) persistently normal (UAE: 10 mg/24 h, range 3 to 18) both before, during, and after discontinuing antihypertensive treatment; group 4, 15 type I diabetic patients with clinical nephropathy (UAE: 611 mg/24 h, range 192 to 3837) and hypertension. Systolic and diastolic blood pressures were similar in the three hypertensive groups: 147/96 +/- 8/6, 150/94 +/- 11/9, and 152/92 +/- 12/6 mm Hg (groups 2, 3, and 4, respectively) but elevated compared with controls (114/74 +/- 9/9 mm Hg, P < .001). The diabetic patients with essential hypertension were hyperfiltering in contrast to patients with nephropathy (glomerular filtration rate 114 +/- 23 v 90 +/- 21 mL/min/173 m2, P < .05).(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗

[Incidence and diagnosis of pneumococcal pneumonias requiring admission to hospital].

A prospective investigation of patients admitted to the local hospital during a period of one year was undertaken. A total of 107 patients participated. 50% of the cases of pneumonia were found by Streptococcus pneumoniae. The diagnosis was established partly by demonstration of antigens and increase in antibody titre and also employing the traditional methods: Blood culture, microscopic examination and culture of the expectorate or tracheal secretion. 70% of the patients were over the age of 60 years. The mortality was found to be 17%. The difficulties in etiological investigations of infections in the lower respiratory tract are discussed.

Adult↗

[Systemic lupus erythematosus. 2. Factors of predictive significance for survival].

Sixty-one of 173 patients with systemic lupus erythematosus followed for a mean of 13.9 years had severe infections which influenced their survival more than could be accounted for by the mortality (20 per cent) caused by the infections. Patients with infections had more SLE manifestations than patients without infections, and they died of lupus manifestations more often than patients without infections. Patients who went into a permanent remission and patients who died of lupus differed most markedly by the rates of infection. The rate of infection was increased more than tenfold in patients treated with high dosages of glucocorticoid compared with patients who received low dosages. Treatment with cytostatics influenced the rate of infections to a moderate degree. Nephropathy also influenced survival but half of the patients with nephropathy maintained a normal plasma creatinine in spite of the long observation period. 16 per cent of the patients with nephropathy died of kidney failure or are receiving chronic hemodialysis.

Adult↗

Bone disorder in men with chronic alcoholism: a reversible disease?

Disturbances in bone metabolism and histology have been recognized in chronic alcoholism. It has not been established whether they are reversible and the cause remains unclear. We studied various serum and urine variables (including serum PTH, calcium, D-vitamins, and osteocalcin concentrations), bone mineral content, and bone histomorphometrics in men who at present abused alcohol and compared the results to those from men who previously had abused alcohol but who had abstained from alcohol for at least 2 yr and from normal men. No significant differences were found in bone mineral content at the two measuring sites (distal forearm, lumbar spine) between drinkers, abstainers, and controls though a considerable proportion of both current drinkers and abstainers had subnormal values. Bone formation rate and turnover (expressed by the activation frequency) was significantly reduced in the current drinkers who also had lower serum PTH, 1,25-dihydroxycholecalciferol, and osteocalcin concentrations. Men who had abstained from alcohol consumption for at least 2 yr had results similar to those from normal men, suggesting that the disturbances in bone metabolism in men abusing alcohol are reversible. The decrease in bone turnover in the drinkers may be explained by the observed reduction in plasma PTH concentration or a direct toxic effect of ethanol on bone tissue leading to a deficient recruitment of osteogenic cells.

Alcoholism↗

Comparison of sorbent preparations used in the fluorescent treponemal antibody absorption (FTA-ABS) test.

The physico-chemical and immunological properties of six different sorbent preparations used in the FTA-ABS test were studied. Three of the sorbent preparations contained one heat-stable Reiter treponemal antigen when analysed in immunoelectrophoresis against polyspecific rabbit anti-Reiter Ig and human syphilitic serum. Marked differences were also observed in the osmolarity (1,340-2,434 milliosmol) and protein concentration (6.5-43 mg/ml) of the sorbent products. However, there was no difference in the performance of the six preparations in the FTA-ABS test, suggesting that the effect of sorbent is based on an unspecific inhibition of the reaction between anti-treponemal antibodies and Treponema pallidum.

Fluorescent Antibody Technique↗

Traumatic amputation of the upper limb: the use of body-powered prostheses and employment consequences.

Forty three patients with unilateral traumatic amputations were reviewed as to the use of prostheses and employment consequences of the amputation. Seventeen of 19 below-elbow amputees, and 12 of 24 above-elbow amputees used their prostheses. Non-users compared to users of prostheses were characterized by: 1) Higher level of amputation 2) Non-dominant arm amputation and 3) Younger age at the time of amputation. However non-users usually did well on the labour market for various reasons.

Adult↗

[Madura foot].

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Female↗