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H Olesen

Publications and source records attributed to H Olesen.

At least 19 recordsLinked to original sources
PubMed1998

International Society of Andrology and International Union of Pure and Applied Chemistry, Clinical Chemistry Section, Commission on Nomenclature, and International Federation of Clinical Chemistry Scientific Division. Properties and units in the clinical laboratory sciences XIII. Properties and units in reproduction and fertility (IUPAC-IFCC technical report 1998).

This document is the first recommendation on the presentation of properties in reproduction and fertility and their values in clinical laboratory sciences from The International Society of Andrology, IFCC and IUPAC. It forms part of the ongoing effort to standardise requests and reporting of laboratory data for transmission across cultural and linguistic domains, without attempting to standardise the language used by clinicians and laboratory practitioners. The document is accessible on Internet from C-NPU home page address: http://inet.uni-c.dk/ home/ifcc_iupac_cnpu.

Chemistry, Clinical↗
PubMed1997

International Federation of Clinical Chemistry and International Union of Pure and Applied Chemistry 2. Properties and Units in the Clinical Laboratory Sciences. VI. Properties and Units in IOC Prohibited Drugs (IFCC-IUPAC Recommendations 1997).

The term designating a substance being an active ingredient of a drug may be a generic name, a nonproprietary name, a registered trade name, a fantasy name or other. This causes difficulties in the transmission of request and report on such substances to and from the clinical laboratories, and in the collating of this information from different sources. The document comprises a list of properties of drugs of abuse in biological fluids as defined by the International Olympic Committee Medical Code for use in electronic transmission systems. Standard systematic names are presented with a code value for each. The coding schemes thus prepared are accessible on Internet from C-NPU Home page address: http://inet.uni-c.dk/ qukb7642.

Pharmaceutical Preparations↗
PubMed1997

Atopic dermatitis and birth factors: historical follow up by record linkage.

OBJECTIVE: To study if factors at birth are associated with later development of atopic dermatitis. DESIGN: Historical follow up by record linkage from Danish medical birth register. Children were followed up for 5.5 to 8.5 years. Second historical follow up study comprising questionnaire to mothers of singleborn children 6.5 to 9.5 years after birth. SETTING: Private dermatology clinics and dermatology and paediatric departments in the municipality of Aarhus, Denmark. SUBJECTS: 7862 singletons born in hospital between 1 January 1984 and 31 December 1986 to mothers living in the municipality of Aarhus. Questionnaires sent to 985 mothers. MAIN OUTCOME MEASURES: Gestational age, birth weight, parity, and age of mother at the time of birth. Atopy in children diagnosed by specialists in dermatology and physicians. Family size; diagnosis of atopic dermatitis, allergic rhinitis, and asthma; family predisposition; and mothers' smoking habits during pregnancy determined from questionnaires. RESULTS: Of 7862 children, 403 were diagnosed as having atopic dermatitis by a specialist; the cumulative incidence at age 7 was 5.6%. High gestational age and low parity were associated with an increased risk of atopic dermatitis. Among 985 children atopic dermatitis had been diagnosed by any physician in 184; the cumulative incidence at age 7 was 18.7%. High birth weight, high gestational age, and family history of atopy were associated with increased risk of atopic dermatitis. CONCLUSION: In both studies the incidence of atopic dermatitis was associated with high gestational age and in one with high birth weight also. The causes for these associations are at present unknown but may indicate that even during gestation factors associated with atopic dermatitis influence maturation.

Adult↗
PubMed1996

Transmission of the results of tests for International Olympic Committee-defined drugs of abuse.

The hardware and software facilities for electronic storage, transfer and handling of data is such that multipurpose databases can be made accessible without geographic restriction at low cost. The versatile and flexible underlying structures allow for ease of access and retrieval of data and gives presentation formats fully comparable to printed counterparts. Because of the apparent ease of use and because of the wider distribution of the information, misinterpretation is more likely to occur than in oral or written presentation for more restricted and more culturally homogeneous audiences. This necessitates some degree of harmonisation/standardisation of data on transfer, while allowing local expression forms at sender and receiver ends (Fig. 1). This document is part of an ongoing international effort to agree on some sort of "standardisation" of the transmission and presentation of "laboratory results". It centers on the domain of drugs of abuse as defined by the International Olympic Committee.

Clinical Laboratory Information Systems↗
PubMed1996

Properties and units in the clinical laboratory sciences. I. Syntax and semantic rules IUPAC--IFCC recommendations 1995.

This document is an updating of previous recommendations on the presentation of properties and their values in clinical laboratory sciences from IFCC, IUPAC and WHO. It forms part of the ongoing effort towards 'standardization' of transmission of laboratory requests and reports across cultural/language domains while avoiding standardization of the language used by clinicians or laboratory practitioners. Subsequent documents will list the kinds-of-property and the properties used in clinical laboratory sciences.

Chemistry, Clinical↗
PubMed1996

Properties and units in the clinical laboratory sciences. V. Properties and units in thrombosis and haemostasis: ISTH-IUPAC-IFCC recommendations 1995.

For historical reasons, the terms used in the nomenclature for properties in thrombosis and haemostasis differ according to 'school' of thought. This hampers communication. In collaboration, The Scientific and Standardization Committee of the International Society on Thrombosis and Haemostasis and the Committee (Commission) of Quantities and Units (in Clinical Chemistry) have prepared a set of recommended systematic names for properties in that domain. For use in electronic transmission each property has been given a code value.

Chemistry, Clinical↗
PubMed1995

International Society on Thrombosis and Haemostasis (ISTH), and International Union of Pure and Applied Chemistry (IUPAC), Clinical Properties and units in the clinical laboratory sciences. V. Properties and units in thrombosis and haemostasis (recommendation 1995). International Society on Thrombosis and Haemostasis (ISTH) and International Union of Pure and Applied Chemistry (IUPAC),and International Federation of Clinical Chemistry (IFCC).

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Chemistry, Clinical↗
PubMed1993

Using the surgical result in the first eye to calculate intraocular lens power for the second eye.

This paper examines the possibility of using the surgical result in the first eye when planning the intraocular lens power for the second eye. Two methods were considered: (1) an empirical method by which one regards the second procedure as a repeat of the one in the first eye and calculates the power from the actual refractive error obtained in the first eye and (2) a theoretical method by which one measures the pseudophakic anterior chamber depth (ACD) of the first eye and uses this value to plan for the second eye. Based on the data from 136 second eye procedures using extracapsular cataract extraction, the prediction error of the empirical method ranged from -10.5 to +9.5 diopters. The error of the theoretical method ranged from -2.3 to +2.8 diopters, which was significantly more accurate than the empirical method (P < .001). We conclude that the fellow eye ACD may be used as a guideline for the assumed ACD of the second eye. However, such use of the fellow eye ACD could not be shown to improve power calculation predictions significantly.

Adult↗
PubMed1993

IOL power mislabelling.

Prompted by four cases of IOL power mislabelling, a method was developed which allowed the measurement of the IOL power using a keratometer. The principle of operation was to measure the curvature of the steepest surface of the IOL through a minus lens by which the size of the mires was brought into the measuring range of the keratometer. With this method the IOL power was checked in three random IOL samples from three companies. Although no large errors in IOL power labelling were encountered in these samples, the error of labelling was found to differ significantly between the companies. It was concluded, that poor manufacturing control of IOL power may add to the sources of error in IOL power prediction.

Aged↗
PubMed1992

Prediction of pseudophakic anterior chamber depth with the newer IOL calculation formulas.

Five methods for predicting pseudophakic anterior chamber depth (ACD) by five previously described intraocular lens power calculation formulas (Binkhorst II, Lepper and Trier, Holladay et al., Sanders-Retzlaff-Kraff (SRK/T), Olsen et al.) were evaluated in a series of 640 patients with a posterior chamber lens implant. Significant differences in formula performance were found in unusually short and long eyes. High errors were found in long eyes with the Lepper and Trier formula, the Holladay formula, and the SRK/T method. The highest accuracy was found with the Binkhorst formula and our previously described linear regression formula which expresses the pseudophakic ACD as a function of the average pseudophakic ACD for a given lens style, the preoperative ACD, and the axial length. The use of the preoperative ACD in combination with the axial length for the prediction of the pseudophakic ACD can therefore be expected to improve the accuracy of IOL power calculation.

Adolescent↗
PubMed1990

Prediction of postoperative intraocular lens chamber depth.

The postoperative intraocular lens (IOL) chamber depth was predicted using a multiple linear regression analysis of the postoperative chamber depth as a function of the corneal height, the preoperative chamber depth, and the axial length in 279 patients with a posterior chamber lens implant. Based on a linear regression formula incorporating these preoperatively defined parameters, the postoperative IOL chamber depth could be predicted with a correlation coefficient of 0.71 and an error of +/- 0.30 mm (SD). It is concluded that an individual prediction of the IOL chamber depth will improve the accuracy in IOL calculation.

Aged↗
PubMed1989

Human intrinsic factor. Its primary structure compared to the primary structure of rat intrinsic factor.

Human intrinsic factor was digested by trypsin and the resulting peptides purified by gelfiltration. Two peptides were sequenced to a total of 61 amino acid residues. Including the sequence for the N-terminal peptide and four cyanogen bromide peptides previously reported, we have now determined a total of 163 amino acid residues, that is a fraction of about 0.40 of the primary structure of human intrinsic factor. The 110 of the 163 residues known of human intrinsic factor are identical to the sequence of rat intrinsic factor.

Amino Acid Sequence↗
PubMed1989

Hemoglobinopathies in Danish families.

Based on cases referred for investigation, as well as a questionnaire sent to all medical and pediatric departments in Denmark, 48 cases of hemoglobinopathy in 15 families of Danish ancestry are reviewed. 18 Danes in six families have been identified as having beta-thalassemia, and remarkably one - a homozygote - has beta-thalassemia intermedia requiring treatment with iron-chelation therapy. A further 36 Danes in 9 families have a hemoglobin variant: five unstable hemoglobins (Volga, Niteroi, and three unidentified), one hereditary methemoglobinemia (M-Arhus), one polycythemia (Ty Gard) and 2 asymptomatic (Athens-Georgia and Hafnia). Although rare in Danish families, a hemoglobinopathy should be considered in families with an unexplained chronic hemolytic anemia, cyanosis or polycythemia.

Denmark↗