Changing two-year outcome of infants weighing 500 to 999 grams at birth: A hospital study

“…Wghrend die Erfolge umfangreicher Bemfihungen zur Verhilttmg von Frahgeburten gesamthaft als entt~iuschend bezeichnet werden milssen, haben die (2rberlebenschancen in dieser Gewichtsgruppe in den letzten Jahren betr~ichtlich zugenommen (Kitchen, 1991;Grogaard, 1990;Hack, 1991;Kilberide, 1990;. Besonders erfreulich ist, dab gleichzeifig die Anzahl (2rber-lebender mit schweren Behinderungen nicht, wie vielfach beffirchtet, zugenommen hat, sondern riiekl/iufig ist (Grogaard, 1990;Kilberide, 1990;Cooke, 1994;Allan, 1994;Kr~igeloh-Mann, 1994).…”

Section: Introductionunclassified

Besonderheiten der Geburtsleitung bei der kleinen Frühgeburt

Schneider¹,

Berger-Menz²,

Hänggi³

1995

Arch Gynecol Obstet

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“…Al though morbidity and mortality relate better to gestational age than to birthweight [1][2][3][4][5][6], most articles report survival and outcome by birthweight as weight is easily and objectively measured [7][8][9], In many instances, obstetric dates are imprecise, and gestational age is esti mated by evaluating physical and neurologi cal properties [10][11][12][13], The tendency to over estimate gestational age of VLBW infants re sults from standardization of these methods with more mature neonatal populations [14][15][16][17], Chronic stress, maternal hypertension, and other adverse intrauterine conditions may accelerate neurological maturation [18,19]. A rapid, accurate, and reproducible method of clinically assessing gestational mat uration is needed.…”

Section: Introductionmentioning

confidence: 99%

Gestational Age Correlates with Skin Reflectance in Newborn Infants of 24–42 Weeks Gestation

et al. 1993

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Accurate gestational age determination is limited in very low birthweight infants using neurological and physical assessments. As one of the markers of intrauterine development, skin maturation is assessed qualitatively by pediatricians. Based on this observation, we hypothesize that skin reflectance relates directly to gestational age. Light was delivered and collected from the skin through a topically placed optical patch. Reflected light was detected by the spectrophotometer and corrected by an adjacent laptop computer to yield the true total diffuse reflectance as a function of wavelength between 380-820 nm. The calculated reflectance at 837 nm (R₈₃₇) where it is independent of melanin, was determined by extrapolation from the reflectance at 650 and 750 nm. Sixty-four neonates of different races with gestational ages of 24-42 weeks were studied at 2-151 h of age. R₈₃₇ was related exponentially to gestational age (GA) by the equation R₈₃₇ = R_max{1 –– exp[––(GA –– G₀)/Τ]}, where R_max is the maximal value of R₈₃₇, G₀ is an apparent delay time before dermal scattering increases rapidly, and Τ is a time constant, r = 0.88, p < 0.001. In summary, the extrapolated skin reflectance offers a quantitative and objective assessment of gestational age which is independent of melanin and sex.

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Changing two-year outcome of infants weighing 500 to 999 grams at birth: A hospital study

Cited by 58 publications

References 14 publications

Somatische Entwicklung extrem kleiner Frühgeborener

Somatische Entwicklung extrem kleiner Frühgeborener

Besonderheiten der Geburtsleitung bei der kleinen Frühgeburt

Gestational Age Correlates with Skin Reflectance in Newborn Infants of 24–42 Weeks Gestation

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