Displaying all 11 publications

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  1. Yong SL, Prathap K
    Aust N Z J Surg, 1977 Apr;47(2):216-20.
    PMID: 267467
    Eight cases of xanthogranulomatous pyelonephritis occurring in an oriental population are reported. The patients were mostly middle-aged, and there was a female preponderence. Nephrectomy controlled the disease in all cases. Diagnosis on clinical and radiological grounds is difficult, and it is often only made on pathological examination of the kidney after nephrectomy. The nature of the disease remains obscure.
  2. Lim KP, Yong SL
    Malays Fam Physician, 2019;14(1):31-34.
    PMID: 31289630
    We describe a 29-year-old Para 1 post-Emergency Lower Segment Caesarean Section (EMLSCS) for fetal distress and Preterm Rupture of the Membrane (PROM) referred by the Obstetric team for persistent bradycardia. She had the typical features of Albright's Hereditary Osteodystrophy (AHO). The laboratory investigation revealed hypocalcemia, hyperphosphatemia with a high Parathyroid hormone (PTH) level and low free Thyroxine 4 (fT4) with high Thyroid Stimulating Hormone (TSH). The patient was diagnosed with Pseudohypoparathyroidism (PHP) Type 1A associated with TSH resistance based on the somatic features of AHO present as well as biochemical and radiological abnormalities.
  3. Ng D, Noor NM, Yong SL
    J ASEAN Fed Endocr Soc, 2019;34(1):29-35.
    PMID: 33442134 DOI: 10.15605/jafes.034.01.06
    Objectives: To determine the prevalence of hypoglycaemia using continuous glucose monitoring system (CGMS) among insulin-treated pregnant women with diabetes whose glycosylated haemoglobin (HbA1c) were <6.0% and identify the risk factors associated with hypoglycaemia occurrence.

    Methodology: We conducted a cross-sectional study using 6-days CGMS to detect the prevalence of hypoglycaemia in 31 insulin-treated pregnant women with diabetes who achieved HbA1c <6.0%. Patients were required to log-keep their self-monitoring blood glucose (SMBG) readings and hypoglycaemia events.

    Results: Eight women experienced confirmed hypoglycaemia with additional seven experienced relative hypoglycaemia, giving rise to prevalence rate of 45.2% (one had both confirmed and relative hypoglycaemia). Nine relative hypoglycaemia and 17 confirmed hypoglycaemic events were recorded. Sixteen (94%) out of 17 confirmed hypoglycaemia events recorded by CGMS were asymptomatic and were missed despite performing regular SMBG. Nocturnal hypoglycaemia events were recorded in seven women. Univariable analysis did not identify any association between conventional risk factors and hypoglycaemia events in our cohort.

    Conclusion: Insulin-treated pregnant women with diabetes who achieved HbA1c <6.0% were associated with high prevalence of hypoglycaemia. Asymptomatic hypoglycaemia is common in our cohort and frequently missed despite regular SMBG. Present study did not identify any association between conventional risk factors and hypoglycaemia events in our cohort.

  4. Yong SL, Sin TH, Tang EB, Chai MC
    BMJ Case Rep, 2018 Jun 04;2018.
    PMID: 29866669 DOI: 10.1136/bcr-2017-223588
    Hyperkalaemic periodic paralysis is a rare skeletal muscle disorder which is characterised by episodic muscle paralysis associated with hyperkalaemia. Although it is an autosomal-dominant disease, cases of de novo mutations have been reported. We report the case of a 30-year-old woman, gravida 5 para 3+1, who was planned for an elective repeated caesarean section at 38 weeks and 3 days of pregnancy. She developed recurrent episodes of hyperkalaemic periodic paralysis after receiving corticosteroids. Intravenous calcium gluconate was administered to normalise potassium levels (from 6.3 mmol/L to 4.1 mmol/L). Extra anaesthetic precautions were taken during the caesarean delivery. Postoperatively, she was well and discharged from the ward. She encountered similar symptoms in her third pregnancy, and there was no family history of muscle weakness which suggested a de novo mutation. Pregnancy seemed to result in vulnerability to hyperkalaemic attacks as she was never symptomatic outside pregnancy.
  5. Yeoh S, Yong SL, Teoh PI, Kang M
    PMID: 34854654 DOI: 10.1515/hmbci-2021-0048
    OBJECTIVES: Choriocarcinoma after a term pregnancy is rare and can be life-threatening, especially when it perforates the uterus, resulting in massive haemoperitoneum. As uterine rupture due to choriocarcinoma is uncommonly encountered in the clinical practice, its diagnosis is often missed or delayed.

    CASE PRESENTATION: We present a case of a 41-year-old para 4 + 1 who had acute abdomen and hypovolaemic shock secondary to haemoperitoneum at three months postpartum period. The urine pregnancy test was positive, and, therefore, a provisional diagnosis of a ruptured ectopic pregnancy was made. She was managed aggressively with fluids and blood product transfusion at the emergency department to achieve haemodynamic stability. Subsequently, she underwent an emergency laparotomy where intraoperatively noted a perforation at the left posterior uterine cornu with purplish tissue spillage. A wedge resection was performed, and the histopathological examination (HPE) was reported as atypical trophoblastic cells, in which choriocarcinoma could not be ruled out. The patient then underwent a total abdominal hysterectomy three weeks later. The final HPE confirmed the diagnosis of choriocarcinoma.

    CONCLUSIONS: The clinical presentation of postpartum choriocarcinoma can be indistinguishable from a ruptured ectopic pregnancy. A high index of suspicion is crucial to allow early diagnosis.

  6. Yong SL, Ng BK, Mohd Yassin MAJ, Syed Zakaria SZ, Mohamed Ismail NA
    J Obstet Gynaecol, 2018 May;38(4):461-465.
    PMID: 29390907 DOI: 10.1080/01443615.2017.1372397
    This study was to assess the relationship between late pregnancy haemoglobin A1C (HbA1C) at 29-30 weeks of gestation and adverse pregnancy outcomes (APOs) in 272 pregnant women with pre-existing diabetes. HbA1C ≥6.1% was associated with significantly increased risk of preterm delivery, Caesarean section, large for gestational age (LGA), neonatal respiratory distress, neonatal hypoglycaemia, and composite adverse neonatal outcome (p  5.6% (p = .039). Reduction of HbA1C cut-off from 6.1% to 5.6% improved the sensitivity but reduced the specificity for prediction of APOs. Overall, the receiver operating characteristic (ROC) curves demonstrated the moderate predictive value of late pregnancy HbA1C for APOs. In conclusion, elevated late pregnancy HbA1C levels at 29-30 gestational weeks had a negative impact on APOs in pregnant women with pre-existing diabetes. However, HbA1C cut-off levels of neither ≥6.1% nor >5.6% were ideal for predicting APOs. Impact statement What is already known on this subject: Poorly controlled diabetes is associated with adverse pregnancy outcomes (APOs). Periconceptual haemoglobin A1C (HbA1C) correlates well with the risk of foetal anomaly but is not predictive of APOs at time of delivery. New evidence suggested that late pregnancy HbA1C is predictive of APOs but the definitions of a late pregnancy gestational week and target HbA1C cutpoint remain in doubt. What the results of this study add: This study investigated the relationship between late pregnancy HbA1C levels at 29-30 weeks of gestation and the APOs among pregnant women with pre-existing diabetes. Late pregnancy HbA1C ≥ 6.1% correlated with the risk of APOs but the increased risk of pre-eclampsia only became significant at the lower cut-off of >5.6%. Reducing HbA1C cut-off from 6.1% to 5.6% improved the sensitivity but reduced the specificity for prediction of APOs. Overall, late pregnancy HbA1C had a moderate predictive value for APOs. What the implications are of these findings for clinical practice and/or further research: HbA1C cut-off levels of neither ≥6.1% nor >5.6% were ideal in predicting APOs among pregnant women with pre-existing diabetes. As HbA1C levels tend to drop in pregnancy, caution should be taken when interpreting HbA1C in pregnancy. More multi-centred studies are required to explore the respective glycaemic target for each APO and to determine the ideal timing for late pregnancy HbA1C measurement.
  7. Yong SL, Ting JC, Wong XS, Wong GH, Kang M
    PMID: 39625419 DOI: 10.23736/S2724-606X.24.05470-8
    BACKGROUND: This study aimed to compare the effectiveness of membrane sweeping and transcervical Foley catheters for the induction of labor after one previous cesarean delivery.

    METHODS: An open-label, prospective, randomized controlled trial was performed at Sibu Hospital, Sarawak, Malaysia between 15th February 2018 and 30th August 2018. Pregnant women aged 18 or above at term who had one previous uncomplicated lower segment cesarean section and required induction of labor were randomized to membrane sweeping or transcervical Foley catheter insertion.

    RESULTS: A total of 60 women were recruited in the study, of whom 30 were randomized to the membrane sweeping group and 30 to the Foley catheter group. The number of women who achieved a Bishop Score ≥8 was significantly higher in the Foley catheter arm than in the membrane sweeping arm (76.7% versus 43.3%; P=0.008). Compared with membrane sweeping, transcervical Foley catheter insertion significantly improved Bishop scores and allowed more women to achieve a favorable cervix that permitted an amniotomy by 48 hours of labor induction (P<0.05). The mode of delivery, intrapartum oxytocin use, maternal complications and neonatal outcomes were similar in both groups. No women had a uterine rupture or uterine hyperstimulation.

    CONCLUSIONS: Although transcervical Foley catheter insertion is superior to membrane sweeping in terms of the efficacy of labor induction, both methods did not show a statistically significant difference in vaginal delivery rates and their overall complication rates were similar.

  8. Lim LL, Hussein Z, Noor NM, Raof ASA, Mustafa N, Bidin MBL, et al.
    PLoS One, 2024;19(1):e0296298.
    PMID: 38166049 DOI: 10.1371/journal.pone.0296298
    AIM: Given a lack of data on diabetes care performance in Malaysia, we conducted a cross-sectional study to understand the clinical characteristics, control of cardiometabolic risk factors, and patterns of use of guideline-directed medical therapy (GDMT) among patients with type 2 diabetes (T2D), who were managed at publicly-funded hospitals between December 2021 and June 2022.

    METHODS: Patients aged ≥18 years with T2D from eight publicly-funded hospitals in the Greater Kuala Lumpur region, who had ≥2 outpatient visits within the preceding year and irrespective of treatment regimen, were eligible. The primary outcome was ≥2 treatment target attainment (defined as either HbA1c <7.0%, blood pressure [BP] <130/80 mmHg, or low-density lipoprotein cholesterol [LDL-C] <1.8 mmol/L). The secondary outcomes were the individual treatment target, a combination of all three treatment targets, and patterns of GDMT use. To assess for potential heterogeneity of study findings, all outcomes were stratified according to prespecified baseline characteristics namely 1) history of atherosclerotic cardiovascular disease (ASCVD; yes/no) and 2) clinic type (Diabetes specialist versus General medicine).

    RESULTS: Among 5094 patients (mean±SD age 59.0±13.2 years; T2D duration 14.8±9.2 years; HbA1c 8.2±1.9% (66±21 mmol/mol); BMI 29.6±6.2 kg/m2; 45.6% men), 99% were at high/very high cardiorenal risk. Attainment of ≥2 treatment targets was at 18%, being higher in General medicine than in Diabetes specialist clinics (20.8% versus 17.5%; p = 0.039). The overall statin coverage was 90%. More patients with prior ASCVD attained LDL-C <1.4 mmol/L than those without (13.5% versus 8.4%; p<0.001). Use of sodium-glucose cotransporter-2 (SGLT2) inhibitors (13.2% versus 43.2%), glucagon-like peptide-1 receptor agonists (GLP1-RAs) (1.0% versus 6.2%), and insulin (27.7% versus 58.1%) were lower in General medicine than in Diabetes specialist clinics.

    CONCLUSIONS: Among high-risk patients with T2D, treatment target attainment and use of GDMT were suboptimal.

  9. Kajdy A, Sys D, Pokropek A, Shaw SW, Chang TY, Calda P, et al.
    Int J Gynaecol Obstet, 2023 Jan;160(1):167-186.
    PMID: 35932096 DOI: 10.1002/ijgo.14388
    OBJECTIVE: To assess risk factors for anxiety and depression among pregnant women during the COVID-19 pandemic using Mind-COVID, a prospective cross-sectional study that compares outcomes in middle-income economies and high-income economies.

    METHODS: A total of 7102 pregnant women from 12 high-income economies and nine middle-income economies were included. The web-based survey used two standardized instruments, General Anxiety Disorder-7 (GAD-7) and Patient Health Questionnaire-9 (PHQ-9).

    RESULT: Pregnant women in high-income economies reported higher PHQ-9 (0.18 standard deviation [SD], P 

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