4.Curriculum TIPS for all of us.
Hoon Eng KHOO ; Zubair AMIN ; Yap Seng CHONG
Annals of the Academy of Medicine, Singapore 2006;35(9):597-598
5.A new population-based reference for gestational age-specific size-at-birth of Singapore infants.
Izzuddin M ARIS ; Mihir GANDHI ; Yin Bun CHEUNG ; Shu E SOH ; Mya Thway TINT ; Peter D GLUCKMAN ; Yung Seng LEE ; Fabian K P YAP ; Yap Seng CHONG
Annals of the Academy of Medicine, Singapore 2014;43(9):439-447
INTRODUCTIONThere is currently a lack of representative data for local gestational age-specific size-at- birth percentile charts. Existing charts also suffer from limitations relating to the measurement of gestational age (GA) and an outdated population. We aim to construct reference values and charts for size-at-birth from 35 to 41 weeks, based on the healthy local population.
MATERIALS AND METHODSProspective observational birth cohort study which recruited pregnant mothers from the 2 major public hospitals with obstetric service in Singapore, at <14 weeks gestation and data was collected for birth weight, length and head circumference of infants born from November 2009 to May 2011. Percentile curves were created separately for male and female infants using the lambda-mu-sigma (LMS) method. The new percentile curves were then compared with other internationally published growth charts.
RESULTSSmoothened curves for birth weight, length and head circumference centiles were created from 863 infants (460 males, 403 females). Male infants consistently exceeded female infants in all 3 variables at each GA. For a male and female Singapore infant at 38 weeks gestation, the 10-50-90th centile values for weight would be 2663-3096-3597 vs. 2571-2966-3417 grams, for length 46.4-48.6-51.1 vs. 45.6-48.0-50.4 cm, and for head circumference 32.0-33.5-35.2 vs. 31.4-32.9-34.6 cm. There was no statistically significant difference between ethnic groups. On comparing our birth weight curves with data from Finland across all gestations, birth weights in our term infants (GA ≥37 weeks) were found to be lower across the 10-50-90th percentiles.
CONCLUSIONThe new centile charts in this study may be used as reference charts for size-at-birth for a subgroup of near-term and term infants. The use of foreign charts may lead to misclassification of small for gestational age (SGA) or large for gestational age (LGA) infants.
Birth Weight ; Body Size ; Cephalometry ; Female ; Gestational Age ; Humans ; Infant, Newborn ; Male ; Prospective Studies ; Reference Values ; Singapore
7.Care of women in menopause: sexual function, dysfunction and therapeutic modalities.
Citra Nurfarah MATTAR ; Yap Seng CHONG ; Lin Lin SU ; Anupriya Aditya AGARWAL ; P C WONG ; Mahesh CHOOLANI
Annals of the Academy of Medicine, Singapore 2008;37(3):215-223
INTRODUCTIONThe physiological changes that occur in menopause alter sexual function and affect well-being. Hormonal changes contribute significantly to reduced sexual function in older women and sexual dysfunction may well be amenable to treatment with exogenous hormones or other agents.
MATERIALS AND METHODSRelevant clinical studies were identified by a computerised literature search. The collated data were presented to fellow gynaecologists for review, analysis of results and discussion in a series of meetings dedicated to finding the best evidence in menopause management. The evidence was assessed and used to prepare guidelines around the management of women who are affected by sexual dysfunction in menopause.
RESULTSHormone therapy benefits many women who have dyspareunia related to vaginal atrophy, reduced libido and decreased satisfaction, particularly if these symptoms adversely affect their quality of life. Alternative agents such as tibolone and sildenafil citrate can be useful adjuncts.
CONCLUSIONSIt is increasingly important to recognise postmenopausal sexual dysfunction. Treatment of this syndrome must be individualised to the specific complaints of each woman. Hormones and other agents are relevant treatment options for properly-selected women.
Female ; Humans ; Menopause ; Sexual Dysfunction, Physiological ; etiology ; therapy ; Sexual Dysfunctions, Psychological ; etiology ; therapy
8.Use of fetal electrocardiogram for intrapartum monitoring.
Lin-Lin SU ; Yap-Seng CHONG ; Arijit BISWAS
Annals of the Academy of Medicine, Singapore 2007;36(6):416-420
INTRODUCTIONIntrapartum fetal monitoring is essential for the identification of fetal hypoxia to reduce perinatal morbidity and mortality. Cardiotocography is associated with low specificity for fetal acidosis and poor perinatal outcome leading to unnecessary operative deliveries. ST waveform analysis of the fetal electrocardiogram has been shown to be a promising adjunctive intrapartum assessment tool. We aim to present the pathophysiology, the role of intrapartum monitoring and the practical usage of this relatively new technology in our review.
METHODSAn electronic search of Medline and OVID was carried out, followed by a manual search of the references identified by the electronic search.
RESULTSThe incorporation of ST waveform analysis to cardiotocography has been shown to reduce the rates of neonatal metabolic acidosis, moderate and severe neonatal encephalopathy, thus improving perinatal outcome. The reduction in operative delivery rates due to fetal distress is also significant. The pathophysiology and practical usage of this technology were discussed.
CONCLUSIONSWith more accurate identification of fetal hypoxia and reduction of unnecessary intervention rates, incorporation of ST waveform analysis of fetal electrocardiography into cardiotocography can improve the standard of intrapartum fetal monitoring.
Electrocardiography ; utilization ; Female ; Fetal Hypoxia ; diagnosis ; Fetal Monitoring ; instrumentation ; methods ; Humans ; Pregnancy ; Singapore
9.Association of Cord Blood Thyroid-Stimulating Hormone Levels with Maternal, Delivery and Infant Factors.
Karen M L TAN ; Anne H Y CHU ; See Ling LOY ; Victor Samuel RAJADURAI ; Clement K M HO ; Yap Seng CHONG ; Neerja KARNANI ; Yung Seng LEE ; Fabian Kok Peng YAP ; Shiao Yng CHAN
Annals of the Academy of Medicine, Singapore 2020;49(12):937-947
INTRODUCTION:
This study examined maternal, delivery and infant factors associated with cord thyroid-stimulating hormone (TSH) concentrations in an Asian population.
METHODS:
The Growing Up in Singapore Towards healthy Outcomes (GUSTO) study is a mother-offspring birth cohort from 2 major hospitals in Singapore. Cord serum TSH was measured using the Abbott ARCHITECT TSH Chemiluminescent Microparticle Immunoassay and the ADVIA Centaur TSH-3 Immunoassay. After excluding infants with a maternal history of thyroid disease, screening cord TSH results from 604 infants were available for multivariable regression analysis in relation to the factors of interest.
RESULTS:
Babies born by vaginal delivery had significantly higher cord serum TSH concentrations than babies born by caesarean section. Cord serum TSH concentrations differed significantly by measurement method. There was no association of cord TSH concentrations with ethnicity, sex, birth weight, gestational age, maternal body mass index, gestational weight gain, gestational diabetes mellitus status and other maternal, delivery and infant factors studied.
CONCLUSION
Interpretation of cord serum TSH results may need to take into account mode of delivery and measurement method.
10.Role of cytokines in the assessment of clinical outcome and neuroimaging findings in patients with tuberculous meningitis
Mei-Ling Sharon Tai ; Hong-Yien Tan ; Yean-Kong Yong ; Esaki M. Shankar ; Shanthi Viswanathan ; Hazman Mohd Nor ; Kartini Rahmat ; Jun-Fai Yap ; Boon-Seng Ng ; Chong Tin Tan
Neurology Asia 2017;22(3):209-220
Background: Tuberculous meningitis is a life-threatening manifestation resulting from infection
by Mycobacterium tuberculosis, especially in the developing countries. The molecular aspects of
pathogenesis of tuberculous meningitis remain poorly understood. We evaluated the correlation of
cerebrospinal fluid (CSF) and serum cytokine levels with the clinical outcome of 15 HIV-negative
patients with tuberculous meningitis. We also assessed the association of CSF and serum cytokines
with neuroimaging of brain findings in the patients. Methods: The prospective longitudinal study was
conducted at the University Malaya Medical Centre between 2012 and 2014. Neuroimaging of the
brain was performed and the findings of leptomeningeal enhancement, hydrocephalus, tuberculoma,
infarcts and vasculopathy were recorded. The CSF and serum specimens were analyzed for IL-1ß,
IL-8, IL-10, IL-18, IP-10, IFN-γ, MCP-1, TGF-ß, VEGF, TNF- α, IL-18BPa and MMP-9. The clinical
outcome was graded at 3 months based on Modified Rankin scale (mRS). Results: On admission and
at one month of anti-tuberculosis treatment, the CSF levels of IL-8, IL-1β, IP-10, IFN-γ and VEGF
were elevated in all of the patients. Serum IP-10, MCP-1, IL-1β and IL-8 levels were increased on
admission and at one month of anti-tuberculosis treatment. There were statistically significant differences
between good and poor outcome (mRS at 3 months) for CSF IFN-γ (p=0.033), CSF IL-10 (p=0.033)
and serum VEGF (p=0.033) at one month of treatment. None of the patients showed any association
between CSF and serum cytokines on admission and at one month of anti-tuberculosis treatment with
neuro-radiological findings.
Conclusion: The CSF cytokine levels were not related to TBM disease severity on admission, and
changes on MRI/CT scans. CSF levels of IFN-γ and IL-10 at one month of anti-tuberculosis treatment
were associated with clinical outcome at 3 months. CSF cytokine levels on admission were not
associated with the clinical outcome.
Tuberculosis, Meningeal