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  • 1
    ISSN: 1432-198X
    Keywords: Blood pressure ; Hypertension ; Ambulatory monitoring ; Reference values
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Ambulatory blood pressure monitoring (ABPM) was performed in 564 healthy schoolchildren during normal circadian activities. The data of two cohorts (155 boys and 139 girls aged 9–13 years and 184 boys and 168 girls with a body height between 120 and 155 cm) are presented. From the age of 9 to 13 years the mean 24-h systolic/diastolic blood pressure (SBP/DBP) increases from 107±9/ 66 ± 7 mmHg to 115 ± 13/68 ± 9 mmHg in boys and from 104 ± 5/64 ± 6 mmHg to 109 ± 8/65 ± 9 mmHg in girls. When related to body height the values rise from 105 ± 6/ 64 ± 6 mmHg at 120 cm to 113 ± 8/67 ± 7 mmHg at 155 cm in boys and from 100±7/65±7 mmHg to 112±9/ 66 ± 9 mmHg in girls. In comparison with the casual blood pressure data obtained from European studies, the presented ABPM values (daytime BP) are higher throughout, which may be explained by the increased activity during daytime with ABPM. There is a mean difference of 4.4 mmHg in boys and of 3.0 mmHg in girls for SBP and of 10.8 mmHg in boys and of 9.0 mmHg in girls for DBP when related to age. In relation to body height, there is a mean difference of 4.4 mmHg in boys and of 3.5 mmHg in girls for SBP and of 10.9 mmHg in boys and of 10.5 mmHg in girls for DBP. We conclude that standards derived from casual blood pressure measurements should not be used for the evaluation of ABPM data.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Pediatric cardiology 18 (1997), S. 146 -148 
    ISSN: 1432-1971
    Keywords: Key words: Dissection — Aneurysm ascending aorta — Coarctation — Atresia of the aortic isthmus — Childhood
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. A boy with atresia of the aortic isthmus suffered dissection of the aneurysmatic ascending aorta. It is assumed that he had coarctation as a newborn and survived the subsequently developed atresia because of extensive collateralization.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1433-0393
    Keywords: SchlüsselwörterZervixkarzinom ; Strahlentherapie ; Kombinationstherapie ; 13cis-Retinsäure ; Interferon ; Key wordsCarcinoma of the cervix ; Radiotherapy ; Combination therapy ; 13-cis-retinoic acid ; Interferon
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Although carcinoma screening is now widely available, cervical carcinoma is still the fourth most common tumour among women in the USA and in the western industrialized nations. There are about 14,000 new cases every year. In underdeveloped countries carcinoma of the cervix is widespread and often the most frequent tumour[18]. Besides primarily surgical treatment radiotherapy is the main curative treatment modality, the 5-year survival rates after therapy being around 90% for stage I disease and 7% for stage IV (FIGO Annual Report). It therefore seems desirable to look for therapeutic concepts, with the aim of improving the present results further by means of new combinations of irradiation with a systemic therapy.
    Notes: Zusammenfassung Trotz der weit verbreiteten Karzinomvorsorge stellt das Zervixkarzinom in den USA und den westlichen Industrienationen immer noch den vierthäufigsten Tumor bei Frauen dar. Die Anzahl von Neuerkrankungen beträgt ca. 14 000 neue Fälle pro Jahr. In unterentwickelten Ländern ist das Zervixkarzinom weit verbreitet und oft der häufigste Tumor[18]. Neben dem primär chirurgischen Vorgehen stellt die Strahlentherapie die wesentliche kurative Behandlungsmodalität dar, wobei die 5-Jahres-Überlebensraten nach Therapie bei 90% für das Stadium I und 7% für das Stadium IV liegen (FIGO Annual Report). Es erscheint daher sinnvoll, nach therapeutischen Konzeptionen zu suchen, um durch neue Kombinationen der Bestrahlung mit einer System-Therapie die gegenwärtigen Ergebnisse weiter zu verbessern.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Der Onkologe 5 (1999), S. 1103-1110 
    ISSN: 1433-0415
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Die Transplantat-Gegen-Wirt-Reaktion oder Graft-Versus-Host-Disease (GVHD) als Ausdruck der Immunreaktion zwischen Spenderlymphozyten und als „fremd” erkanntem Empfängerorganismus ist eine typische Komplikation z. B. nach allogener Knochenmarktransplantation [39]. Als verwandtes Krankheitsbild ist die seltene sogenannte Transfusions-assoziierte-Graft-Versus-Host-Erkrankung (TAGVHD) beschrieben. Voraussetzung für das Auftreten einer TAGVHD ist die Übertragung von teilungsfähigen allogenen Spender-Lymphozyten durch eine Transfusion in den Empfänger, welcher auf Grund seiner Immunitätslage nicht in der Lage ist, diese fremden Lymphozyten zu eliminieren. Die klinische Symptomatik ähnelt dem Bild einer GVHD mit den typischen Veränderungen an Haut, Darm und Leber [36, 37]. In Abhängigkeit von der Grunderkrankung und dem Allgemeinzustand ist die Letalität der TAGVHD trotz der modernen Möglichkeiten der Immunsuppression hoch und wird in der Literatur zwischen 75% und 90% angegeben [24]. Während lange Zeit vermutet wurde, daß das Krankheitsbild nur im Rahmen einer Hochdosistherapie nach peripherer Stammzelltransplantation oder auch nach allogener Knochenmarktransplantation (KMT) auftritt, ist heute bekannt, daß generell alle Blutempfänger mit mittelgradiger oder schwerer Immunsuppression sowie auch Empfänger von nur partiell HLA-indentischem Blutprodukten durch diese Komplikationen gefährdet sind. Hierzu zählen z. B. auch Organempfänger von Herz- oder Nierentransplantaten, Patienten mit malignen Lymphomen (auch nach konventioneller Chemotherapie), Frühgeborene oder Empfänger von Transfusionen unter Verwandten. Aufgrund der unbefriedigenden therapeutischen Möglichkeiten kommt der Prävention der TAGVHD in der Klinik eine besondere Bedeutung zu. Angestrebt wird vor der Transfusion eine möglichst komplette ▸Depletion teilungsfähiger Lymphozyten in der Transfusion, wofür in der Klinik die ex-vivo-Bestrahlung der Blutprodukte mit ionisierenden Strahlung Anwendung findet [16].
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Physics of the solid state 40 (1998), S. 1288-1289 
    ISSN: 1063-7834
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The shift in the nuclear magnetic resonance (NMR) line of 71Ga isotopes in GaAs crystals is investigated in the temperature range 160–360 K. It is observed that the position of the resonance line is temperature-independent. The value of the shift relative to an isolated nucleus is 440 and 420 ppm for the three samples investigated. The roles of various contributions to the NMR line shift are discussed.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-0428
    Keywords: Keywords Microalbuminuria ; nephropathy ; NIDDM ; ACE inhibitors ; hypertension.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The clinical importance of selection of different antihypertensive drugs for the treatment of diabetic patients is still unclear. Thus we performed a randomised, controlled study in 105 hypertensive non-insulin-dependent diabetic (NIDDM) patients with microalbuminuria over 1 year. Patients received either the angiotensin converting enzyme (ACE) inhibitor ramipril (2.5–5.0 mg/day; in addition 24 % of patients also received felodipine) or the beta blocking agent atenolol (50–100 mg/day; in addition 24 % of patients also received hydrochlorothiazide). Blood pressure, metabolic control, lipid levels and albumin excretion rate were studied during the follow-up. After 1 year an almost identical fall (p 〈 0.001) in blood pressure was observed with ramipril (170/100 vs 150/85 mmHg, median) and atenolol (180/100 vs 150/80 mmHg, median). With ramipril a reduction of total cholesterol (6.3 vs 5.9 mmol/l), of LDL cholesterol (3.8 vs 3.6 mmol/l) and HDL cholesterol (1.3 vs 1.2 mmol/l) was found, whereas triglycerides slightly increased (1.8 vs 2.0 mmol/l). With atenolol a similar reduction of total cholesterol (6.3 vs 5.9 mmol/l), LDL cholesterol (3.8 vs 3.7 mmol/l) and HDL cholesterol (1.4 vs 1.2 mmol/l) and an increase of triglycerides (1.4 vs 1.7 mmol/l) was noted. Metabolic control of the patients was maintained with both ramipril and atenolol treatment. With ramipril treatment urinary albumin creatinine ratio (14.4 vs 13.8 mg/mmol) and creatinine clearance (82 vs 84 ml/min) were constant, but with atenolol an increase of albumin creatinine ratio (13.9 vs 19 mg/mmol, p 〈 0.001) and a slight decrease of creatinine clearance (80 vs 66 ml/min, p 〈 0.05, not significant after Bonferroni correction) was observed. In conclusion: 1-year treatment of NIDDM patients with ramipril or atenolol does not influence metabolic control, the changes in serum lipids were similar. Despite almost identical blood pressure reduction in both groups the albumin creatinine ratio was constant under ramipril, but increased under atenolol treatment. [Diabetologia (1996) 39: 1611–1616]
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 0942-0940
    Keywords: Atypical meningioma ; anaplastic meningioma ; postoperative radiotherapy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We retrospectively analysed 13 patients (pts.) treated at the University of Tübingen from 1985 to 1993 to evaluate the results of radiation therapy (XRT) given as an adjuvant to totally or subtotally resected meningiomas. The overall survival was 38% at five years with a probability of relapse of 50% at this time. Reclassification of the tumours according to the new WHO-classification of brain tumours [14] revealed 10 grade-II-tumours (atypical meningioma) and 3 grade-III-tumours (anaplastic meningioma). Radiotherapy failed in all 3 pts. with macroscopically incomplete resection (Simpson's grade IV), who died with relapse between 4 and 51 months after radiotherapy. 5 out of 10 pts. with grade-II-tumours relapsed. All 3 pts. with grade-III-tumours died with relapse between 6 and 21 months after XRT. Morbidity was seen in 2 pts. after irradiation with 60 GY (ICRU dose specification). Complete surgical exstirpation offers the best possibility of tumour control. Grade-III-tumours should be irradiated whatever the extent of the primary surgery was. Our results might indicate a possible indication for XRT in pts. with atypical grade-II-tumours especially when radical surgery must be in doubt. Prospective multicentre trials are warranted to prove the prognostic value of the new WHO-classification for atypical and anaplastic meningiomas and to define the ultimate role of radiotherapy in this setting.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1432-1076
    Keywords: QT-syndrome ; Adams-Stokes-attack ; Ventricular tachyarrhythmia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Forty children with presumed ventricular tachyarrhythmic syncopes in the absence of structural heart disease were studied. Twenty-nine patients, one of whom was deaf, had a prolonged QT-interval in the resting electrocardiogram (Group 1); eleven patients had a normal QT-interval (Group 2). The median QTc-interval was 0.51s in Group 1 and 0.40s in Group 2. Familial occurence suggesting autosomal dominant inheritance was found in 21 of 28 normally hearing patients in Group 1 and in 2 of 11 patients in Group 2. Syncopes were definitely stress-induced in 22 patients in Group 1 and in all 11 patients in Group 2. Of 23 patients in Group 1 in whom an electrocardiogram was obtained during physical exercise, only one showed severe ventricular dysrhythmia. In contrast, all eleven patients in Group 2 developed severe ventricular dysrhythmia with exercice. Treatment with beta-blocking medication prevented further syncopes in 15 of 19 patients with several previous attacks in Group 1 and in 3 of 5 patients of Group 2. Four of the 29 patients in Group 1 died suddenly and one more remained apallic after an attack. Of the 11 patients in Group 2, four died suddenly and one retains severe cerebral damage after resuscitation from ventricular fibrillation. We conclude that, besides the group of patients with the long QT-syndrome, there may be a distinct group of patients with a consistently normal QT-interval and severe ventricular dysrhythmia with exercise. Patients of both groups are threatened by sudden death and are improved by treatment with beta-blocking medication.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1432-1130
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract  A quantitative fingerprinting of automotive lubricants with respect to zinc dialkyl dithiophosphates (ZDP), major anti-wear/antioxidant additives, is presented. ZDPs in lubricant solutions are converted into the corresponding methyl and p-nitrobenzylic esters, respectively. After removal of the lubricant matrix the methyl esters are submitted to gas chromatography (GC). Mass spectrometric detection (MS) and comparison with reference methyl esters enable the characterisation of practical ZDP mixtures with respect to alkyl chain length and isomery of the single components. Overall recovery rates are higher than 90% and phosphorus-selective detection (NPD) allows a quantitative determination down to 0.1 pg/μl. The p-nitrobenzylic esters may be analysed by HPLC. Identification and quantification is performed by on-line HPLC-UV and HPLC-MS (APCI) with a determination limit of 20 pg/μl. The ZDP quantification via the methyl esters is applied to seven lubricants from the German market. The method is applicable to used oils allowing the monitoring of ZDP consumption during engine operation.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-1130
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Capillary batch injection analysis (CBIA) and capillary flow injection analysis (CFIA) in combination with electrochemical detection as well as optical detection methods were studied and compared with respect to their performance. Despite the differences in technical equipment both techniques share the same idea of reproducible transport and washout of nanolitre samples over sensing surfaces. Thus the same electrochemical flow cell can be used for both CBIA and CFIA. The amperometric and potentiometric CBIA responses were studied under various experimental conditions in order to optimise the CBIA set-up. In particular, the density of the sample solution relative to that of the cell electrolyte had a remarkable effect on the hydrodynamic characteristics of CBIA. Dispersion in CFIA was investigated using on column UV-detection for electroosmotic flow (EOF) conditions as well as for gravity flow conditions. It is demonstrated for a 75 μm capillary that the relative band broadening of the sample plug under gravity flow is only about twice as large as under EOF. Furthermore, dispersion in a system that involves a chemical reaction between the sample and the carrier solution, namely CrO7 2– and Fe2+ has been investigated by amperometric detection and exploited for the determination of dichromate microsamples.
    Type of Medium: Electronic Resource
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