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  • 1
    ISSN: 1432-0711
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-0509
    Keywords: Septic puerperal ovarian vein thrombosis (SPOVT)—Computed tomography—Magnetic resonance angiography—Ultrasound.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Septic puerperal ovarian vein thrombosis (SPOVT) is one of the underlying etiologies of puerperal fever. A correct diagnosis of this condition is important because adequate treatment requires additional administration of anticoagulants. The purpose of this study was to evaluate the role of duplex color Doppler ultrasound (CDUS), computed tomography (CT), and magnetic resonance angiography (MRA) in the detection of SPOVT. Methods: Twenty-six patients with puerperal fever suspected to be due to SPOVT and unresponsive to broad antibiotic treatment for at least 48 h were included in a prospective study using CDUS, CT, and MR imaging including MRA. Examinations were analyzed and then correlated to a standard of reference gathered from surgical and clinical follow-up data and from results of imaging. Results: SPOVT was present in nine patients (right side n = 8, bilateral n = 1). CDUS was inconclusive due to gaseous distention of the bowel or obesity in 13 of 26 cases. After counting inconclusive findings as wrong results for statistical purposes, sensitivity, specificity, and accuracy for CDUS were 55.6%, 41.2%, and 46.2%, respectively. CT had a sensitivity of 77.8% with a specificity of 62.5%; accuracy was 68.0%. MRA rendered conclusive results in all evaluated patients, resulting in a sensitivity and specificity of 100%. Conclusion: MRA is recommended in all patients with inconclusive CDUS findings and persistent suspicion for SPOVT. CT has the advantage of more rapid access and lower cost and thus will probably remain a sufficiently accurate alternative.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    BJOG 99 (1992), S. 0 
    ISSN: 1471-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1471-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary. While studying the lung function of pregnant women at term in four different postures, we were surprised to note marked cyclic accelerations in the heart rate in two-thirds of the women when in a standing position. The mean cycle length was 105 s (range: 1–4 min) and the amplitude had a mean of 27 beats/min (range: 9–51). Blood flow velocity measurements with ultrasound Doppler over the femoral vein showed that there was an intermittent reduction of flow during quiet standing. When the venous return ceased, maternal heart rate increased, cardiac output decreased and blood pressure fell. After the venous blood flow was restored, maternal heart rate, cardiac output and blood pressure returned to normal until the cycle started again. Concomitant with these maternal heart rate changes, different patterns of fetal heart rate were observed. About 70% of the fetuses showed reduction in the long-term variability, increase in fetal heart rate or periodic accelerations. Although no woman fainted during quiet standing, the maternal circulatory changes were consistent with those seen in the classical vena cava syndrome.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    BJOG 81 (1974), S. 0 
    ISSN: 1471-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Transcutaneous oxygen tension (tcPO2) was monitored in 28 women during labour, using a method which correlates closely with arterial oxygen tension. Most women increased their ventilation during uterine contractions and decreased it when the uterus relaxed. The tcPO2 record, therefore, showed a wave form synchronous with the uterine pressure curve.In four out of nine women given 50 mg. of pethidine and in 13 out of 19 given 100 mg. of pethidine with 1.25 mg. of levallorphan (Dolantin S), the fall in tcPO2 became greater immediately following the administration of the drug. The tcPO2 fell to about 30 mm. Hg in four women. Abnormal heart rate patterns were recorded from eight fetuses.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Analytical chemistry 21 (1949), S. 1385-1389 
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK and Malden, USA : Blackwell Science Ltd
    BJOG 111 (2004), S. 0 
    ISSN: 1471-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Objective  To generate reliable new reference ranges for pregnancy blood pressure from a large population.Design  A prospective cross sectional study.Setting  Obstetric outpatient clinic, Zurich University Hospital.Sample  Accurately dateable singleton pregnancies (Caucasian: n= 3234; Asian [predominantly from Sri Lanka, Thailand and the Philippines]: n= 577; Black n= 212).Methods  Between January 1996 and February 2000 blood pressure was determined in 4023 pregnant women using an oscillometric automated device (Dinamap) according to British Hypertension Society recommendations. Women receiving antihypertensive medication were excluded.Main outcome measure  Blood pressure.Results  Only the means of duplicate measures at the booking visit (5–42 weeks) were used in the analysis. Mean blood pressure decreased from early to mid pregnancy before increasing to levels 4 mmHg higher at term than in early pregnancy. Values 〉130/80 and 〈90/50 mmHg were above the 95th and below the 5th centiles, respectively. Parity, age and body mass index were significant determinants in Caucasians. Blood pressure was slightly lower in Asians and Blacks.Conclusions  The current World Health Organisation definition of high diastolic blood pressure (≥90 mmHg on two occasions) reflects values 〉2 standard deviations from the mean. This may be too conservative as threshold for detecting women at risk of pre-eclampsia. Further studies are required to determine the prognostic implications of gestational values ≥95th centile (≥130/80 mmHg) and ≤5th centile (≤90/50 mmHg).
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1471-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Objective  To investigate the effect of oral iron on postpartum red cell and iron parameters in non-anaemic women with iron deficiency.Design  Randomised study of supplementation with oral iron sulphate 80 mg daily or placebo for 12 weeks starting 24−48 hours after delivery, with visits antepartum and 1, 4, 6 and 12 weeks postpartum.Setting  Swiss university hospital obstetric unit.Participants  Fifty-two women with antenatal iron deficiency (serum ferritin 〈15 μg/L) and no antenatal or postnatal anaemia (haemoglobin 〉11 g/dL up to 48 hours before delivery, and 〉10 g/dL postpartum), divided into two groups comparable in antenatal iron status.Methods  Supplementation was started 24–48 hours after delivery (visit 1:V1). Additional tablets were issued one week after V1 (V2), four weeks after V1 (V3) and six weeks after V1 (V4). The last visit took place 12 weeks after visit 1 and 6 weeks after visit 4 (V5). Patients were required to return blisters and boxes whether they were used and unused at each visit and compliance was assessed by counting the tablets. Blood samples for haematology and iron status testing were taken before delivery and at each visit.Main outcome measures  Iron status (serum ferritin, hypochromic red cells, iron, transferrin saturation, soluble transferrin receptor concentration); erythropoiesis (standard parameters, including reticulocyte indices); and inflammatory response (serum neopterin, C-reactive protein, white cell count) in five-datapoint profiles.Results  Increased ferritin (P= 0.0004) and transferrin saturation (P= 0.03), decreased soluble transferrin receptors (P= 0.02); increased haemoglobin (P= 0.02) and decreased hypochromic red cells (P= 0.04) compared with placebo at 12 weeks, with no differences in other red cell or reticulocyte parameters. There was a positive correlation between C-reactive protein and postpartum ferritin. No correlation was observed in the puerperium between C-reactive protein and hypochromic red cells or soluble transferrin receptors.Conclusions  Haemoglobin levels and iron stores in women with term gestational iron deficiency benefit significantly from iron supplementation compared with placebo, even in an industrialised population.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    BJOG 109 (2002), S. 0 
    ISSN: 1471-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Objectives To investigate whether nausea and vomiting and olfactory sensitivity are correlated, we determined whether subjects with little or no nausea and vomiting are less sensitive to odours than subjects who indicate a high degree of nausea and vomiting, and whether subjects with relatively low olfactory sensitivity are less prone to nausea and vomiting than subjects with relatively higher olfactory sensitivity.Design Cross sectional study.Setting The Unit of Perinatal Physiology, Department of Obstetrics, University Hospital, Zurich, Switzerland.Population Fifty-three women in early pregnancy.Methods Following a detailed history related to olfaction and nausea and vomiting, subjects filled in a nausea profile which provided a ‘general nausea score’ comprised of the factors ‘somatic distress’, ‘gastrointestinal distress’, and ‘emotional distress’. Olfactory function was assessed using pen-like odour dispensing devices (‘sniffin’ sticks’). Tests included n-butanol odour threshold, odour discrimination and odour identification.Main outcome measures Olfactory function assessed by means of the sniffing sticks nausea profile.Results Correlational analyses between results of olfactory sensitivity and scores from the nausea questionnaire were not significant. Further, when subjects were divided into groups with relatively low or relatively high overall scores in the nausea profile, olfactory sensitivity did not differ between groups. Similarly, other analyses did not indicate a modulation of nausea and vomiting through olfactory sensitivity.Conclusions These findings do not support the hypothesis that higher olfactory sensitivity relates to an increase of nausea. However, they do support the idea that olfactory-induced nausea is independent of subjectively perceived intensity. Olfactory-induced nausea appears to be due to the cognitive processing of olfactory information which, in early pregnancy, is reported to be altered in an unsystematic fashion.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-1440
    Keywords: Transcutaneous $$P_{O_2 }$$ ; Transcutaneous $$P_{CO_2 }$$ ; in vivo determination of the local capillary Hb concentration ; Bloodless Determination of the Arterial $$P_{O_2 }$$ and $$P_{CO_2 }$$ , Bloodless Determination of the Acid/Base Status ; Transcutane $$P_{O_2 }$$ ; transcutaner $$P_{CO_2 }$$ ; in vivo-Bestimmung der lokalen capillären Hämoglobinkonzentration ; unblutige Erfassung der Blutgase ; unblutige Erfassung des Säure-Basen-Status
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Arterielle Blutgaswerte lassen sich transcutan erfassen, wenn die Perfusionseffizienz der Haut so hoch ist, da\ kleine Änderungen der Durchblutung den gemessenen $$P_{O_2 }$$ - und $$P_{CO_2 }$$ -Wert nicht verändern. Dies läßt sich mit speziell konstruierten, thermostatisierten und geheizten $$P_{O_2 }$$ - und $$P_{CO_2 }$$ -Elektroden erreichen. Die zur Temperatur-regelung notwendige Heizleistung ist ein Maß für die Perfusion, die gleichzeitige Veränderung des $$P_{O_2 }$$ oder $$P_{CO_2 }$$ ein Maß für die Effizienz. Ist der arterielle $$P_{O_2 }$$ und $$P_{CO_2 }$$ bekannt, so läßt sich der Säure-Basen-Status nach der bekannten Methode der Blutnomographie bestimmen.
    Notes: Summary Arterial blood gas values can be monitored transcutaneously, if the perfusion efficiency of the skin is so high that small changes in blood flow do not change the measured $$P_{O_2 }$$ and $$P_{CO_2 }$$ values. This is brought about by specially constructed $$P_{O_2 }$$ and $$P_{CO_2 }$$ electrodes which are heated and thermostated. The power necessary to regulate the temperatures of the electrode serves as an index of the perfusion, the simultaneous change of the transcutaneous $$P_{O_2 }$$ and $$P_{CO_2 }$$ as an index of efficiency. Knowing the arterial $$P_{O_2 }$$ and $$P_{CO_2 }$$ , the acid/base status can be determined by applying the well known methods of blood nomography.
    Type of Medium: Electronic Resource
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