scholarly journals P12.12: Reference ranges for umbilical artery mean pulsatility index from 24 weeks to 39 weeks of gestation in an Indian population

2011 ◽  
Vol 38 (S1) ◽  
pp. 212-212
Author(s):  
G. Sahi ◽  
A. Khurana
Keyword(s):  
Pulsatility Index ◽  
Indian Population ◽  
Umbilical Artery ◽  
Reference Ranges

scholarly journals Reference values for Doppler indices of the umbilical and fetal middle cerebral arteries in uncomplicated third trimester pregnancy

1970 ◽  
Vol 32 (3) ◽  
pp. 5-13
Author(s):  
S Paudel ◽  
B Lohani ◽  
G Gurung ◽  
MA Ansari ◽  
P Kayastha
Keyword(s):  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Pulsatility Index ◽  
Umbilical Artery ◽  
Resistance Index ◽  
Reference Ranges ◽  
Regression Equations ◽  
Third Trimester ◽  
Trimester Pregnancy ◽  
Doppler Indices

Introduction: The purpose of this study was to categorize new reference ranges for measurements of commonly used umbilical artery and fetal middle cerebral artery Doppler indices (Pulsatility Index, Resistance Index, and Systolic: Diastolic ratio) in uncomplicated third trimester pregnancy. Methods: This was a prospective cross sectional study involving 101 singleton uncomplicated pregnancies of 30 to 37 weeks of gestation. Umbilical artery indices were obtained from free floating loop and middle cerebral Doppler indices were obtained from the proximal third of the artery with flow towards the probe. Regression equations were used to categorize reference ranges and percentile fitted Normograms were obtained for all the parameters. Results: Among 101 singleton pregnancies between 30 and 37 weeks of gestation, 65 (64.35%) were primigravida women and 36 (34.65%) were multigravida. Mean maternal age was 23.12years (range 16 to 35 years). Maximum number of pregnancies (18.81%) was at 34 weeks of gestation. The established percentiles of Doppler indices showed a continuous reduction of all the measured indices as pregnancy increases (p<0.0001). Conclusions: Reference ranges were obtained for the middle cerebral artery and umbilical artery Doppler indices. These ranges are consistent with similar studies done by other authors. Keywords: Doppler study; fetal Middle cerebral artery; pulsatility index; resistance index; systolic; diastolic ratio; umbilical artery DOI: http://dx.doi.org/10.3126/joim.v32i3.4953 Journal of Institute of Medicine, December, 2010; 32:3 5-13

scholarly journals 684 Intertwin differences in umbilical artery pulsatility index and risk for twin-to-twin transfusion syndrome

2021 ◽  
Vol 224 (2) ◽  
pp. S429-S430
Author(s):  
Jimmy Espinoza ◽  
Ozhan Turan ◽  
Andres F. Espinoza ◽  
Elizabeth Kravitz ◽  
Summer Walton ◽  
...  
Keyword(s):  
Pulsatility Index ◽  
Umbilical Artery

Umbilical artery pulsatility index in early pregnancies with chromosome anomalies

1996 ◽  
Vol 103 (4) ◽  
pp. 330-334 ◽  
Author(s):  
J. M. Martinez ◽  
C. Comas ◽  
J. Ojuel ◽  
B. Puerto ◽  
A. Borrell ◽  
...  
Keyword(s):  
Pulsatility Index ◽  
Umbilical Artery ◽  
Chromosome Anomalies

Umbilical artery pulsatility index and fetal abdominal circumference in isolated gastroschisis

2011 ◽  
Vol 38 (5) ◽  
pp. 538-542 ◽  
Author(s):  
U. Hussain ◽  
A. Daemen ◽  
H. Missfelder-Lobos ◽  
B. De Moor ◽  
D. Timmerman ◽  
...  
Keyword(s):  
Pulsatility Index ◽  
Umbilical Artery ◽  
Abdominal Circumference

Intertwin differences in umbilical artery pulsatility index are associated with infant survival in twin-to-twin transfusion syndrome

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Jimmy Espinoza ◽  
Michael A. Belfort ◽  
Alireza A. Shamshirsaz ◽  
Ahmed A. Nassr ◽  
Magdalena Sanz Cortes ◽  
...  
Keyword(s):  
Laser Surgery ◽  
Pulsatility Index ◽  
Umbilical Artery ◽  
Curve Analysis ◽  
Receiver Operating Characteristics ◽  
Regression Analyses ◽  
Infant Survival ◽  
Operating Characteristics ◽  
Roc Curve Analysis ◽  
Double Twin

Abstract Objectives To evaluate the association of intertwin differences in umbilical artery pulsatility index (DUAPI) and infant survival in twin-to-twin transfusion syndrome (TTTS). Methods Absolute DUAPI was calculated prior to laser surgery. Receiver-operating characteristics (ROC) curve analysis provided an intertwin DUAPI cutoff of 0.4 for the prediction of double twin survival to 30 days of life. Infant survival was compared between women with an intertwin DUAPI <0.4 and ≥0.4 in the whole cohort, in TTTS cases with Quintero stages I/II and in those with Quintero stages III/IV. Regression analyses were performed to evaluate the association of intertwin DUAPI <0.4 and infant survival adjusted for confounders. Results In total, 349 TTTS cases were included. Double twin survival to 30 days was observed in 67% (234/349) of cases. Significant differences in double twin survival was seen between intertwin DUAPI groups in the whole cohort (76.8 vs. 52.2%; p<0.001), in women with TTTS Quintero stage I or II (77.8 vs. 58.5%; p=0.015) as well as in women with TTTS Quintero stage III or IV (75 vs. 49.5%; p=0.001). Intertwin DUAPI <0.4 conferred a threefold increased chance for double twin survival. Conclusions Small intertwin DUAPI is associated with increased double infant survival in early and advanced TTTS stages.

Age‐ and gender‐related reference ranges for thromboelastography from a healthy Indian population

2019 ◽  
Vol 42 (2) ◽  
pp. 180-189 ◽  
Author(s):  
Javed Ahammad ◽  
Annamma Kurien ◽  
Shamee Shastry ◽  
Hitesh H. Shah ◽  
Dinesh Nayak ◽  
...  
Keyword(s):  
Indian Population ◽  
Reference Ranges ◽  
Age And Gender ◽  
And Gender
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