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Titolo: Sonographic assessment of amniotic fluid volume between 11 and 24 weeks ofgestation: construction of reference intervals related to gestational age
Autore: Gramellini, D; Delle Chiaie, L; Piantelli, G; Sansebastiano, L; Fieni, S; Vadora, E;
 Indirizzi:
 Univ Parma, Inst Obstet & Gynaecol, I43100 Parma, Italy Univ Parma Parma Italy I43100 t Obstet & Gynaecol, I43100 Parma, Italy
 Titolo Testata:
 ULTRASOUND IN OBSTETRICS & GYNECOLOGY
fascicolo: 5,
volume: 17,
anno: 2001,
pagine: 410  415
 SICI:
 09607692(200105)17:5<410:SAOAFV>2.0.ZU;2A
 Fonte:
 ISI
 Lingua:
 ENG
 Soggetto:
 SINGLETON PREGNANCIES; ULTRASOUND EVALUATION; FIRST TRIMESTER; OLIGOHYDRAMNIOS; INDEX; ACCURACY; GROWTH; FETAL; 2ND;
 Keywords:
 amniotic fluid volume; mean amniotic fluid diameter; reference intervals; second trimester of pregnancy; ultrasound;
 Tipo documento:
 Article
 Natura:
 Periodico
 Settore Disciplinare:
 Clinical Medicine
 Citazioni:
 22
 Recensione:
 Indirizzi per estratti:
 Indirizzo: Gramellini, D Univ Hosp, Inst Obstet & Gynaecol, Via Gramsci 14, I43100 Parma, Italy Univ Hosp Via Gramsci 14 Parma Italy I43100 0 Parma, Italy



 Citazione:
 D. Gramellini et al., "Sonographic assessment of amniotic fluid volume between 11 and 24 weeks ofgestation: construction of reference intervals related to gestational age", ULTRASOUN O, 17(5), 2001, pp. 410415
Abstract
Objective At present, most of the methods for sonographic assessment of amniotic fluid volume are unreliable in the second trimester of pregnancy, orelse they do not present nomograms related to gestational age. Design The aim of this prospective crosssectional study was to construct normal reference ranges of four ultrasound parameters for the evaluation ofamniotic fluid volume which could be applied in the second trimester. For these parameter we calculated normal curve limits suitable for use in clinical practice. Subjects From a population of normal pregnant women between the 12th and the 24th weeks of gestation undergoing a routine ultrasound examination during 1997 at our institute, 273 were found to be suitable for the study: after the exclusion of all cases which presented any fetomaternal pathology orcomplications up to the 24th week. Methods The largest 'amniotic pocket' in a vertical direction, free of small fetal parts rind umbilical cord, was measured: the maximum vertical and transverse diameters were measured on the same scan; the mean diameter and the product of the two diameters were calculated. The 'mean amniotic fluid diameter', the 'twodiameter pocket', the 'largest vertical pocket' and the'largest transverse pocket' were the four sonographic parameters considered. Results The four parameters correlated well with gestational week and withthe biparietal diameter; the normal reference intervals and normal curve were then calculated. All these parameters were found to have good intra and interoperative reproducibility. Conclusions We conclude that the use of an ultrasound semiquantitative method based on the measurement of a single amniotic fluid pocket and involving normal reference intervals according to gestational age could improve theearly diagnosis of amniotic fluid variations during the second trimester, although this has yet to he confirmed by extensive clinical trials.
ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/11/20 alle ore 00:47:16