Siti Zawiah Omar

Siti Zawiah Omar


Research Focus & Metrics

Academic Career Length

20Years (2007-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 October 2007 in Obstetrics & Gynecology
Verified
Journal Article
Closed access
PTPeng Chiong Tan
Peng Chiong Tan
CYChoon Ming Yow
Choon Ming Yow
SOSiti Zawiah Omar
Siti Zawiah Omar
To estimate the effect of coitus on the onset of labor. Women with a nonurgent labor induction at term were recruited. Women randomly assigned to the advised-coitus group were encouraged to have sex to promote the onset of labor. Controls were neither encouraged nor discouraged regarding coitus. Participants kept a coital and orgasm diary until delivery, and standard obstetric care was provided to both groups. Primary outcomes were reported coitus and spontaneous labor. Secondary outcomes included reported orgasms, initial Bishop score at the admission for induction, preterm rupture of membranes, use of dinoprostone, oxytocin, or epidural, meconium-stained amniotic fluid, cesarean delivery, maternal fever, and neonatal morbidity. One hundred eight and 102 women randomly assigned to advised-coitus and control groups, respectively, were available for analysis. Women assigned to the advised-coitus group were more likely to report coital activity before delivery (60.2% compared with 39.6%, relative risk 1.5, 95% confidence interval 1.1-2.0; P=.004), but the spontaneous labor rate was no different (55.6% compared with 52.0%, relative risk 1.1, 95% confidence interval 0.8-1.4; P=.68). Cesarean delivery rate and neonatal and other secondary outcomes were also not different. Among women scheduled for labor induction who were advised to have sex, the increase in sexual activity did not increase the rate of spontaneous labor. isrctn.org, http://isrctn.org, ISRCTN17998696

21 December 2017 in Archives of Gynecology and Obstetrics
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Journal Article
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MMMaryam Mosavat
Maryam Mosavat
SOSiti Zawiah Omar
Siti Zawiah Omar
PTPeng Chiong Tan
Peng Chiong Tan
MRMuhammad Fazril Mohamad Razif
Muhammad Fazril Mohamad Razif
PSPavai Sthaneshwar
Pavai Sthaneshwar

11 December 2019 in BMC Pregnancy and Childbirth
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Journal Article
Open access
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PSPatrick Naveen Sargunam
Patrick Naveen Sargunam
LBLindy Li Mei Bak
Lindy Li Mei Bak
PTPeng Chiong Tan
Peng Chiong Tan
NVNarayanan Vallikkannu
Narayanan Vallikkannu
MAMat Adenan Noor Azmi
Mat Adenan Noor Azmi
SOSiti Zawiah Omar
Siti Zawiah Omar
Background: Prolonged latent phase of labor is associated with adverse maternal and neonatal outcomes. Preliminary data indicate that labor induction for prolonged latent phase may reduce cesarean delivery. We performed a study powered to Cesarean delivery to evaluate labor induction compared to expectant management in full term nulliparas hospitalized for persistent contractions but non-progressive to established labor after an overnight stay. Methods: From 2015 and 2017, nulliparas, ≥ 39 weeks’ gestation with prolonged latent phase of labor (persistent contractions after overnight hospitalization > 8 h), cervical dilation ≤3 cm, intact membranes and reassuring cardiotocogram were recruited. Participants were randomized to immediate induction of labor (with vaginal dinoprostone or amniotomy or oxytocin as appropriate) or expectant management (await labor for at least 24 h unless indicated intervention as directed by care provider). Primary outcome measure was Cesarean delivery. Results: Three hundred eighteen women were randomized (159 to each arm). Data from 308 participants were analyzed. Cesarean delivery rate was 24.2% (36/149) vs. 23.3%, (37/159) RR 1.0 95% CI 0.7–1.6; P = 0.96 in induction of labor vs. expectant arms. Interval from intervention to delivery was 17.1 ± 9.9 vs. 40.1 ± 19.8 h; P < 0.001, intervention to active labor 9.6 ± 10.2 vs. 29.6 ± 18.5 h; P < 0.001, active labor to delivery 7.6 ± 3.6 vs. 10.5 ± 7.2 h; P < 0.001, intervention to hospital discharge 2.4 ± 1.2 vs. 2.9 ± 1.4 days; P < 0.001 and dinoprostone use was 19.5% (29/149) vs. 8.2% (13/159) RR 2.4 95% CI 1.3–4.4; P = 0.01 in IOL compared with expectant arms respectively. Intrapartum oxytocin use, epidural analgesia and uterine hyperstimulation syndrome, postpartum hemorrhage, patient satisfaction on allocated intervention, during labor and delivery and baby outcome were not significantly different across trial arms. Conclusions: Induction of labor did not reduce Cesarean delivery rates but intervention to delivery and to hospital discharge durations are shorter. Patient satisfaction scores were similar. Induction of labor for prolonged latent phase of labor can be performed without apparent detriment to expedite delivery. Trial registration: Registered in Malaysia National Medical Research Register (NMRR-15-16-23,886) on 6 January 2015 and the International Standard Randomised Controlled Trials Number registry, registration number ISRCTN14099170 on 5 Nov 2015.

16 January 2021 in Archives of Gynecology and Obstetrics
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Journal Article
Closed access
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NSNuraini Sukarna
Nuraini Sukarna
PTPeng Chiong Tan
Peng Chiong Tan
JHJesrine Gek Shan Hong
Jesrine Gek Shan Hong
SSSofiah Sulaiman
Sofiah Sulaiman
SOSiti Zawiah Omar
Siti Zawiah Omar

24 November 2022 in Scientific Reports
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Journal Article
Open access
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SJSajad Jamalpour
Sajad Jamalpour
SZShamsul Mohd Zain
Shamsul Mohd Zain
RVReza Vazifehmand
Reza Vazifehmand
ZMZahurin Mohamed
Zahurin Mohamed
YPYuh Fen Pung
Yuh Fen Pung
SOSiti Zawiah Omar
Siti Zawiah Omar
Gestational diabetes mellitus (GDM) is a severe global issue that requires immediate attention. MicroRNA expression abnormalities are possibly disease-specific and may contribute to GDM pathological processes. To date, there is limited data on miRNA profiling in GDM, especially that involves a longitudinal study. Here, we performed miRNA expression profiling in the entire duration of pregnancy (during pregnancy until parturition and postpartum) using a miRNA- polymerase chain reaction array (miRNA-PCRArray) and in-silico analysis to identify unique miRNAs expression and their anticipated target genes in Malay maternal serum. MiRNA expression levels and their unique potential as biomarkers were explored in this work. In GDM patients, the expression levels of hsa-miR-193a, hsa-miR-21, hsa-miR-23a, and hsa-miR-361 were significantly increased, but miR-130a was significantly downregulated. The area under the curve (AUC) and receiver operating characteristic (ROC) curve study demonstrated that hsa-miR-193a (AUC = 0.89060 ± 04,470, P = 0.0001), hsa-miR-21 (AUC = 0.89500 ± 04,411, P = 0.0001), and miR-130a (AUC = 0.6939 ± 0.05845, P = 0.0025) had potential biomarker features in GDM. In-silico analysis also revealed that KLF (Kruppel-Like family of transcription factor), ZNF25 (Zinc finger protein 25), AFF4 (ALF transcription elongation factor 4), C1orf143 (long intergenic non-protein coding RNA 2869), SRSF2 (serine and arginine rich splicing factor 2), and ZNF655 (Zinc finger protein 655) were prominent genes targeted by the common nodes of miR23a, miR130, miR193a, miR21, and miR361.Our findings suggest that circulating microRNAs in the first trimester has the potential for GDM screening in the Malay population.

15 October 2008 in International Journal of Gynecology & Obstetrics
Verified
Journal Article
Closed access
SVSubramaniam Vani
Subramaniam Vani
SLSoon Yen Lau
Soon Yen Lau
BLBoon Kiong Lim
Boon Kiong Lim
SOSiti Zawiah Omar
Siti Zawiah Omar
PTPeng Chiong Tan
Peng Chiong Tan