Displaying publications 1 - 20 of 109 in total

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  1. Arumugam K, Omar SZ
    Aust N Z J Obstet Gynaecol, 1992 May;32(2):154-7.
    PMID: 1520202
    The study investigates the use of the various parameters of the semen analysis in predicting the fertility outcome in 82 infertile couples. The sperm density, % progressive motility, % normal morphology were divided into 'normal' and 'abnormal' based on the criteria proposed by WHO. The subsequent cumulative pregnancy rates were then calculated according to this criteria. A life-table method of analysis was used. All female related fertility factors were excluded. With the exception of a sperm density of less than 20 x 10(6) per ml the other parameters showed no significant correlation with the cumulative pregnancy rates at 12 months or 24 months respectively. We concluded that the semen analysis does not predict the probable outcome of the subsequent rates even when female fertility related factors were excluded apart from a sperm density less than 20 x 10(6) per ml.
  2. Omar SZ, Sivanesaratnam V, Damodaran P
    Singapore Med J, 1999 Feb;40(2):109-10.
    PMID: 10414171
    Uterine leiomyoma is found in approximately 2% of pregnant women. One in ten women will have complications related to myoma in pregnancy. Myomectomy during pregnancy especially at Caesarean section is much discouraged in the literature. We present here 2 cases of large uterine myoma, situated in the anterior aspect of the lower segment, complicating pregnancy at term. Myomectomy in both instances allowed delivery of the fetus through the lower segment, making vaginal delivery in subsequent pregnancies possible.
  3. Damodaran P, Subramaniam R, Omar SZ, Nadkarni P, Paramsothy M
    Singapore Med J, 2000 Sep;41(9):431-5.
    PMID: 11193115
    The object of this study is to determine the status of an urban Malaysian woman in her menopause age group with reference to her menopausal symptoms, lipid profile, breast, pelvis and bone. One hundred and sixty four women attending the Menopause Clinic of University Hospital, Kuala Lumpur who had not previously been on hormone replacement therapy were studied. Forty nine women were perimenopausal, 74 women were in early menopause (within 5 years of menopause) and 41 women were in late menopause (after 5 years of menopause). The most common symptoms were hot flushes (56%) and generalised tiredness (49%). Eighty four percent (84%) of women had high cholesterol levels. Serum triglycerides were highest in the late menopause group. There were 2 cases of intraductal carcinoma diagnosed on routine mammography, with 8 cases of fibrocystic breast disease and 7 cases of suspicious breast lumps. Routine ultrasound (pelvic and abdominal) revealed two women with ovarian cysts, 6 women with an endometrial thickness of more than 5 mm and 8 women with uterine fibroids. Eighty five women (51.8%) had mild osteoporosis while four women had moderate osteoporosis on dual photon measurements for bone mineral density. Menopause clinics should aim at investigating a woman in her menopause as a whole. Vasomotor symptoms were common in the urban Malaysian menopausal woman. There was a high incidence of lipid abnormalities. Routine mammography, pelvic ultrasound examinations and bone mineral density tests detected significant pathology and abnormalities.
    Study site: Menopause Clinic, University Malaya Medical Centre (UMMC), Kuala Lumpur, Malaysia
  4. Nadesan K, Omar SZ
    Malays J Pathol, 2002 Jun;24(1):9-14.
    PMID: 16329550
  5. Tan PC, Jacob R, Omar SZ
    Obstet Gynecol, 2006 Mar;107(3):569-77.
    PMID: 16507926
    To determine the benefit of membrane sweeping at initiation of labor induction in conjunction with formal methods of labor induction.
  6. Tan PC, Jacob R, Quek KF, Omar SZ
    BJOG, 2006 Jun;113(6):733-7.
    PMID: 16709219
    The association between female fetal sex and hyperemesis gravidarum is well established in European and North American populations. The association between female fetuses and severity of hyperemesis remains uncertain. A retrospective study based on case notes review of 166 Asian women hospitalised for hyperemesis was performed. Female fetuses were significantly associated with hyperemesis in our population (P= 0.004, OR 1.6, 95% CI 1.2-2.2) as well as associated with severe ketonuria and high urea. When both severe ketonuria and high urea were present at initial hospital admission for hyperemesis, 83% (95% CI 66-93) of the fetuses were female.
  7. Tan PC, Jacob R, Quek KF, Omar SZ
    Aust N Z J Obstet Gynaecol, 2006 Oct;46(5):446-50.
    PMID: 16953861
    In a retrospective analysis of 192 cases of presumed hyperemesis gravidarum, there were no biochemical markers that predicted hospital readmission. There was, however, statistically significant negative predictive value in abnormal liver function tests. This could represent acute self-limited illness with a component of hepatitis as the cause for the clinical presentation, rather than hyperemesis.
  8. Tan PC, Subramaniam RN, Omar SZ
    Aust N Z J Obstet Gynaecol, 2007 Feb;47(1):31-6.
    PMID: 17261097
    To compare the outcome in 1000 women at term with one lower transverse Caesarean that was suitable for a trial of labour.
  9. Tan PC, Ling LP, Omar SZ
    Aust N Z J Obstet Gynaecol, 2007 Jun;47(3):191-7.
    PMID: 17550485 DOI: 10.1111/j.1479-828X.2007.00717.x
    Background: The best method of screening for gestational diabetes (GDM) remains unsettled. The 50-g glucose challenge test (GCT) is used in a two-stage screening process but its best threshold value can vary according to population.

    Aims: To evaluate the role of risk factors in conjunction with GCT and to determine an appropriate threshold for the one-hour venous plasma glucose with the GCT.

    Method: In a prospective study, 1600 women at antenatal booking without a history of diabetes mellitus or GDM filled a form on risk factors before GCT. Women who had GCT >or= 7.2 mmol/L underwent the 75-g oral glucose tolerance test (OGTT). GDM was diagnosed according to WHO (1999) criteria.

    Result: Thirty-five per cent had GCT >or= 7.2 mmol/L, 32.6% underwent OGTT and 34.5% of OGTT confirmed GDM. The GDM rate in our population was at least 11.4%. Examination of the receiver operator characteristic curve suggested that the best threshold value for the GCT in our population was >or= 7.6 mmol/L. Multivariable logistic regression demonstrated that only GCT >or= 7.6 mmol/L was an independent predictor for GDM (adjusted odds ratio 3.7: P < 0.001). After GCT, maternal age and anthropometry, OGTT during the third trimester, family history, obstetric history and glycosuria were not independent predictors of GDM.

    Conclusions: Risk factors were not independent predictors of GDM in women with GCT >or= 7.2 mmol/L. GCT threshold value >or= 7.6 mmol is appropriate for the Malaysian population at high risk of GDM.
  10. Tan PC, Valiapan SD, Tay PY, Omar SZ
    BJOG, 2007 Jul;114(7):824-32.
    PMID: 17506788
    To compare concurrent oxytocin with dinoprostone pessary versus dinoprostone pessary in labour induction for nulliparas with an unfavourable cervix.
  11. Tan PC, Jacob R, Quek KF, Omar SZ
    J Obstet Gynaecol Res, 2007 Aug;33(4):457-64.
    PMID: 17688612
    To determine pregnancy outcome in hyperemesis gravidarum and the effect of metabolic, biochemical, hematological and clinical indicators of disease severity on outcome.
  12. Tan PC, Yow CM, Omar SZ
    Obstet Gynecol, 2007 Oct;110(4):820-6.
    PMID: 17906015
    To estimate the effect of coitus on the onset of labor.
  13. Lim SS, Tan PC, Sockalingam JK, Omar SZ
    Aust N Z J Obstet Gynaecol, 2008 Feb;48(1):71-7.
    PMID: 18275575 DOI: 10.1111/j.1479-828X.2007.00808.x
    To compare oral celecoxib with oral diclofenac as pain reliever after perineal repair following normal vaginal birth.
  14. Tan PC, Subramaniam RN, Omar SZ
    Singapore Med J, 2008 Mar;49(3):188-92.
    PMID: 18362998
    Caesarean delivery rates are still increasing, and reliable predictors of adverse outcomes at a subsequent trial of scar are important as they guide decision-making on the best mode of delivery. We aimed to evaluate whether there are any predictors for caesarean delivery and neonatal admission, following trial of labour after one lower transverse caesarean section.
  15. Omar SZ, Qvist R, Khaing SL, Muniandy S, Bhalla S
    J Obstet Gynaecol Res, 2008 Apr;34(2):174-8.
    PMID: 18412778 DOI: 10.1111/j.1447-0756.2008.00755.x
    The aim of the present study was to determine the existence or prevalence of thrombophilic markers such as Factor V Leiden, prothrombin G20210A, protein S, protein C, activated protein C and anti-thrombin in pre-eclampsia and pregnancy-induced hypertensive patients.
  16. Tan PC, Rajasingam G, Devi S, Omar SZ
    Obstet Gynecol, 2008 May;111(5):1111-7.
    PMID: 18448743 DOI: 10.1097/AOG.0b013e31816a49fc
    To estimate prevalence rate of recent dengue infection in parturients, as well as the vertical transmission rate, and to compare pregnancy outcomes among infected women.
  17. Mohamed E, Abdul-Rahman PS, Doustjalali SR, Chen Y, Lim BK, Omar SZ, et al.
    Electrophoresis, 2008 Jun;29(12):2645-50.
    PMID: 18494030 DOI: 10.1002/elps.200700828
    A 35 kDa glycoprotein whose abundance was previously demonstrated to be enhanced in sera of patients with endometrial adenocarcinoma (n = 12), was isolated from pooled sera of three of the cancer patients using champedak galactose-binding lectin affinity chromatography in the present study. Subjecting it to 2-DE and MS/MS, the glycoprotein was identified as the O-glycosylated fragment of inter-alpha-trypsin inhibitor heavy chain H4 (ITIH4). When compared to control sera (n = 17), expression of the 35 kDa ITIH4 cleavage fragment was demonstrated to be significantly enhanced in sera of patients with breast carcinoma (n = 10), epithelial ovarian carcinoma (n = 10), and germ cell ovarian carcinoma (n = 10) but not in patients with nasopharyngeal carcinoma (n = 13) and osteosarcoma (n = 7). The lectin-based electrophoretic bioanalytical method adopted in the present study may be used to assess the physiological relevance of ITIH4 fragmentation and its correlation with different malignancies, their stages and progression.
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