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1.
The amount of prenatal care and the relationship between insufficientprenatal care, mothers' characteristics and infant outcome werestudied in Finland and in Baden-Württemberg, Germany. Themain sources of data were the Finnish Medical Birth Register(N=193,659) and the Perinatal Survey of Baden-Württemberg(N=307,152) in 1991–1993. Insufficient prenatal care wasdefined as no visits, 1 or 2 visits or late attendance. Mostof the women - also those in the risk groups for low use ofcare (foreigners, young mothers, grand multiparas, single mothersand women with a poor social status) - were using prenatal careextensively. The proportion of women having insufficient carewas 3.4% in Finland and 8.1% in Baden-Württemberg, mostof them being late attenders. Among women with insufficientcare, 39% in Finland and 55% in Baden-Württemberg werefrom the risk groups identified. Foreign nationals contributed10% of the women with insufficient care in Finland and 44% inBaden-Württemberg. The group of women with insufficientprenatal care was heterogeneous and it could not be definedby using traditional risk factors only. Infants of mothers withfew prenatal visits had poorer outcomes, but the attributableproportion of insufficient prenatal care to infant outcome wassmall.  相似文献   
2.
Introduction: We examined whether quantification of T-wave alternans (TWA) enhances this parameter's capacity to evaluate the risk for total and cardiovascular mortality and sudden cardiac death (SCD).
Methods and Results: The Finnish Cardiovascular Study (FINCAVAS) enrolled consecutive patients (n = 2,119; 1,342 men and 777 women) with a clinically indicated exercise test with bicycle ergometer. TWA (time domain-modified moving average method) was analyzed from precordial leads, and the results were grouped in increments of 10 μV. Hazard ratios (HR) for total and cardiovascular mortality and SCD were estimated for preexercise, routine exercise, and postexercise stages. Cox regression analysis was performed. During follow-up of 47.1 ± 12.9 months (mean ± standard deviation [SD]), 126 patients died: 62 were cardiovascular deaths, and 33 of these deaths were sudden. During preexercise, TWA ≥ 20 μV predicted the risk for total and cardiovascular mortality (maximum HR >4.4 at 60 μV, P < 0.02 for both). During exercise, HRs of total and cardiovascular mortality were significant when TWA measured ≥50 μV, with 90 μV TWA yielding maximum HRs for total and cardiovascular death of 3.1 (P = 0.03) and 6.4 (P = 0.002), respectively. During postexercise, TWA ≥60 μV indicated risk for total and cardiovascular mortality, with maximum HR of 3.4 at 70 μV (P = 0.01) for cardiovascular mortality. SCD was strongly predicted by TWA levels ≥60 μV during exercise, with maximum HR of 4.6 at 60 μV (P = 0.002), but was not predicted during pre- or postexercise.
Conclusion: Quantification of TWA enhances its capacity for determination of the risk for total and cardiovascular mortality and SCD in low-risk populations. Its prognostic power is superior during exercise compared to preexercise or postexercise.  相似文献   
3.
Abstract A 47-year-old man was admitted with the chief complaint of a urethral defect. An approximately 17-cm defect of the urethra seemed to have been occurred by the infection of implanted foreign bodies in the penile skin. Reconstruction of the urethra and the ventral skin was performed with a free radial forearm flap. A fistula formed at the proximal anastomosis after the operation, but was controlled conservatively. Urethral stricture at the proximal anastomosis subsequently developed. A urethral stent made of shape memory alloy was placed with the preservation of voiding function.  相似文献   
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Background : Atrial fibrillation (AF) causes electrical, functional, and structural changes in the atria. We examined electrophysiologic remodeling caused by AF and its reversal noninvasively by applying a new atrial signal analysis based on magnetocardiography (MCG).
Methods : In 26 patients with persistent AF, MCG, signal-averaged electrocardiography (SAECG), and echocardiography were performed immediately after electrical cardioversion (CV), and repeated after 1 month in 15 patients who remained in sinus rhythm (SR). Twenty-four matched subjects without history of AF served as controls. P-wave duration (Pd) and dispersion (standard deviation of Pd values in individual channels) and root mean square amplitudes of the P wave over the last 40 ms portions (RMS40) were determined.
Results : In MCG Pd was longer (122.8 ± 18.2 ms vs 101.5 ± 14.6 ms, P < 0.01) and RMS40 was higher (60.4 ± 28.2 vs 46.9 ± 19.1 fT) in AF patients immediately after CV as compared to the controls. In SAECG Pd dispersion was increased in AF patients. Mitral A-wave velocity and left atrial (LA) contraction were decreased and LA diameter was increased (all P < 0.01). After 1 month, Pd in MCG still remained longer and LA diameter greater (both P < 0.05), while RMS40 in MCG, Pd dispersion in SAECG, mitral A-wave velocity, and LA contraction were recovered.
Conclusions : Magnetocardiographically detected atrial electrophysiologic alterations in persistent AF diminish rapidly although incompletely during maintained SR after CV. This might be related to the known early high and late lower, but still existent tendency to AF relapses.  相似文献   
6.
The stable microbubble (SM) test on gastric aspirate obtained at birth proved useful in identifying infants who would develop respiratory distress syndrome (RDS). This test involves only the count of stable microbubbles of ≤ 15 μm in diameter. Larger bubbles (> 15 μm in diameter) are not necessary for the test and may interfere with stable microbubble counting. The aims of the present study were to determine: (i) if larger bubbles could be selectively removed by adding ethanol, a potent bubble breaker; and (ii) if the predictive value of this modified test, the ethanol resistive microbubble (ERM) test, on the development of RDS was similar to that of the SM test. Varying amounts of different concentrations of ethanol-water solutions were added to the top of the bubble crop generated by the SM test procedure, and the mean counts of stable microbubbles and larger bubbles in five regions were calculated. A volume of 10 μL of 47.5% ethanol was effective in defoaming larger bubbles generated by the SM test procedure without altering the stable microbubble counts. When concurrently performed on 43 samples of gastric aspirate obtained at birth from infants of less than 35 weeks gestation, the RDS predictive value of the ERM test was similar to that of the SM test. It was concluded that the ERM test may serve as an alternative to the SM test.  相似文献   
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In two-thirds of patients with splenic lymphoma with villous lymphocytes (SLVL) a small amount of M-protein can be detected in association with the presence of plasma cells in the peripheral blood (PB) and/or bone marrow (BM). However, it is not known whether lymphoma cells and plasma cells originate from the same clone. In this report we describe a case of SLVL which was characterized by the presence of marked monoclonal gammopathy (IgG-κ 90 g/l) and increased plasma cells in the BM. In an attempt to elucidate the origin of lymphoma cells and plasma cells, we performed morphological, cytogenetic and molecular studies on PB mononuclear cells (PBMNC) without plasma cells and BMMNC containing 10% plasma cells from this patient.
Immunofluorescence showed that lymphoma cells and plasma cells were positive for cytoplasmic γ heavy and κ light chains. Well-developed endoplasmic reticulum was observed in the cytoplasmic organelles of PBMNC using an electron microscope. The mean IgG concentration in the 3 d supernatant cultures of PBMNC was 374±24μg/l. More than 50% PBMNC differentiated into plasmacytoid cells in 6 d of liquid culture with IL-3 and IL-6. Analysis by two-colour FISH revealed that karyotypic abnormalities of monosomy X and trisomy 17 existed simultaneously in both lymphoma cells and plasma cells. JH gene rearranged bands from PBMNC and BMMNC by Southern blot hybridization were identical, whereas DNAs from PBMNC failed to hybridize with the Cμ probe.
These observations strongly suggest that lymphoma cells and plasma cells originate from the same clone, and that plasma cells, as well as lymphoma cells, which have undergone class switch recombination, could produce IgG type M-protein in this case.  相似文献   
9.
PURPOSE: Bikunin is a Kunitz-type protease inhibitor found in serum and urine. It has been implicated in urinary stone formation. This study was designed to investigate the role of urinary bikunin in stone formation. MATERIALS AND METHODS: Urinary concentrations of bikunin were measured in 18 male formers of urinary stones 28 to 74 years old and in 77 healthy controls, including 39 males and 38 females, without urological abnormality. A sensitive competitive solid phase enzyme immunoassay was established for urinary bikunin. Bikunin was also qualitatively assessed by Western blot analysis. RESULTS: The mean urinary bikunin-to-creatinine ratio plus or minus standard deviation in stone formers was significantly elevated compared with that in healthy male and female controls (52.9 +/- 46.0 microg./mg. creatinine versus 28.0 +/- 30.4 and 26.5 +/- 21.7, p = 0.005 and 0.006, respectively). By Western blot analysis all urine samples contained authentic 40 kDa. bikunin species. However, a significantly higher proportion of patients was found to have aberrant 25 kDa. bikunin species compared with controls (10 of 18 or 55.6% versus 15 of 77 or 19.5%, p = 0.002). Experiments on de-glycosylation with chondroitinase ABC, amino acid sequencing of the aberrant bikunin species and calcium oxalate crystal growth inhibition assay demonstrated that the 25 kDa. bikunin fragment was identical to de-glycosylated bikunin and less inhibitory on calcium oxalate crystal growth. CONCLUSIONS: If urinary bikunin is important in the pathogenesis of urolithiasis, its effect is probably attributable to the concentration and degree of glycosylation.  相似文献   
10.
Objectives: To compare the ability of parents to calculate and demonstrate the correct paracetamol (acetaminophen) dose, interval, and frequency for their child when using either product information leaflets or the Parental Analgesia Slide. Background: Prescribing information provided with over‐the‐counter medication may be a source of confusion for parents delivering analgesics to children at home. Accurate administration is essential to ensure safe and effective treatment of children’s pain or fever. The Parental Analgesia Slide is a new device developed with the objective of improving parental dosing accuracy. Methods: In this prospective, randomized study, 160 parents accompanying children aged between one and 13 years old were randomly allocated to complete a paracetamol dose calculation and administration questionnaire using one of two sources of prescribing information. Absolute percentage dose error and the number of correct dosage intervals, frequencies, and demonstrated drug volumes were compared. Results: Use of the Parental Analgesia Slide resulted in a reduction in the absolute percentage dose error from a median of 33.3 to 0% (P < 0.001) and an increase in the number of correct dosage intervals and frequencies (59/80 to 70/80, P = 0.046). There was no difference in the number of correctly demonstrated drug volumes (P = 0.082) despite a greater number of parents opting to use an oral syringe rather than a dosing spoon when using the Slide (24/80 to 44/80, P = 0.002). Conclusions: The Parental Analgesia Slide resulted in improved parental ability to calculate paracetamol dose, interval, and frequency while preserving their ability to demonstrate an accurate drug volume.  相似文献   
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