Search Results - "Keel, Matthias"

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  1. 1

    Cyclical fluctuations in blood pressure, heart rate and cerebral blood volume in preterm infants by von Siebenthal, Kurt, Beran, Jan, Wolf, Martin, Keel, Matthias, Dietz, Vera, Kundu, Seema, Bucher, Hans Ulrich

    Published in Brain & development (Tokyo. 1979) (01-12-1999)
    “…Many recently published papers describe cyclical changes of cerebral circulatory variables, mainly in cerebral blood flow velocity (CBFV) performed with…”
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    Journal Article
  2. 2

    Oxygen extraction index measured by near infrared spectroscopy--a parameter for monitoring tissue oxygenation? by Baenziger, Oskar, Keel, Matthias, Bucher, Hans-Ulrich, Wolf, Martin

    “…The objective was to assess the ability of near infrared spectrophotometry (NIRS) to detect changes in tissue oxygenation due to alterations in oxygen…”
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    Journal Article
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    Sucrose reduces pain reaction to heel lancing in preterm infants : a placebo-controlled, randomized and masked study by BUCHER, H.-U, MOSER, T, VON SIEBENTHAL, K, KEEL, M, WOLF, M, DUC, G

    Published in Pediatric research (01-09-1995)
    “…In term infants sucrose given by mouth has been reported to reduce duration of crying after a heel prick. This study was designed primarily to investigate the…”
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    Conference Proceeding Journal Article
  5. 5

    Comparison of three methods to measure absolute cerebral hemoglobin concentration in neonates by near-infrared spectrophotometry by Wolf, Martin, von Siebenthal, Kurt, Keel, Matthias, Dietz, Vera, Baenziger, Oskar, Bucher, Hans Ultrich

    Published in Journal of biomedical optics (01-04-2002)
    “…Three methods by which to determine absolute total cerebral hemoglobin concentration (tHb in micromol/L) by near-infrared spectrophotometry (NIRS) have…”
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    Journal Article
  6. 6

    The influence of a clear layer on near-infrared spectrophotometry measurements using a liquid neonatal head phantom by Wolf, M, Keel, M, Dietz, V, von Siebenthal, K, Bucher, H U, Baenziger, O

    Published in Physics in medicine & biology (01-07-1999)
    “…It is difficult to test near-infrared spectrophotometry instruments in vivo. Therefore we constructed a liquid phantom which mimics the neonatal head. It…”
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    Journal Article
  7. 7

    Continuous noninvasive measurement of cerebral arterial and venous oxygen saturation at the bedside in mechanically ventilated neonates by Wolf, Martin, Duc, Gabriel, Keel, Matthias, Niederer, Peter, von Siebenthal, Kurt, Bucher, Hans-Ulrich

    Published in Critical care medicine (01-09-1997)
    “…OBJECTIVESTo test the practicability of a new spectrophotometric method using pulse oximetric techniques in combination with special filters for the…”
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    Journal Article
  8. 8

    Variability of cerebral hemoglobin concentration in very preterm infants during the first 6 hours of life by von Siebenthal, Kurt, Keel, Matthias, Fauchère, Jean-Claude, Dietz, Vera, Haensse, Daniel, Wolf, Ursula, Helfenstein, Urs, Bänziger, Oskar, Bucher, Hans U, Wolf, Martin

    “…Cerebral hemoglobin concentration (cHbc), a major determinant of oxygen transport capacity in the brain, shows a considerable variability due to physiological…”
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    Journal Article
  9. 9

    The influence of a clear layer on near infrared spectrophotometry: comparison of measurements in a liquid neonatal head phantom to infants in vivo by Wolf, Martin, Keel, Matthias, Dietz, Vera, von Siebenthal, Kurt, Teller, Jan, Bucher, Hans-Ulrich, Baenziger, Oskar

    “…Near infrared spectrophotometric (NIRS) algorithms to determine the tissue oxygen saturation (TOI) assume a semi-infinite, homogenous tissue geometry. At the…”
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    Journal Article
  10. 10

    Effect of Nursing in the Head Elevated Tilt Position (15°) on the Incidence of Bradycardic and Hypoxemic Episodes in Preterm Infants by Jenni, Oskar G, von Siebenthal, Kurt, Wolf, Martin, Keel, Matthias, Duc, Gabriel, Bucher, Hans U

    Published in Pediatrics (Evanston) (01-10-1997)
    “…We investigated whether nursing in the head elevated tilt position (HETP), compared with the horizontal position, has any effect on the incidence of…”
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    Journal Article
  11. 11

    CO2 reactivity of the cerebral hemoglobin concentration in healthy term newborns measured by near infrared spectrophotometry by Dietz, V, Wolf, M, Keel, M, v Siebenthal, K, Baenziger, O, Bucher, H

    Published in Biology of the neonate (01-02-1999)
    “…CO2 reactivity of cerebral hemoglobin concentration was studied in 16 healthy term neonates on days 1 and 4 after birth using the near infrared…”
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    Journal Article
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    Impact of central, obstructive and mixed apnea on cerebral hemodynamics in preterm infants by Jenni, O G, Wolf, M, Hengartner, M, Siebenthal, K, Keel, M, Bucher, H U

    Published in Biology of the neonate (1996)
    “…The objective of this study was to evaluate the effect of central, obstructive and mixed apnea on cerebral total hemoglobin concentration (tHb), which is…”
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    Journal Article
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    Improved monitoring of preterm infants by Fuzzy Logic by Wolf, M, Keel, M, von Siebenthal, K, Bucher, H U, Geering, K, Lehareinger, Y, Niederer, P

    Published in Technology and health care (01-08-1996)
    “…Keeping the oxygenation status of newborn infants within physiologic limits is a crucial task in intensive care. For this purpose several vital parameters are…”
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    Journal Article
  20. 20

    Regional differences of cerebral hemoglobin concentration in preterm infants measured by near infrared spectrophotometry by Keel, M, Wolf, M, Baenziger, O, Dietz, V, von Siebenthal, K, Bucher, H U

    Published in Technology and health care (1999)
    “…Near infrared spectrophotometry has been used to measure total cerebral hemoglobin concentration (micromol/l) as a major indicator of the oxygen transport…”
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    Journal Article