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  1. Tengku Kamalden TMI, Misron K, Arumugam PA
    Acta Otolaryngol, 2021 Jul;141(7):678-683.
    PMID: 33908813 DOI: 10.1080/00016489.2021.1916074
    BACKGROUND: With more intracanalicular vestibular schwannoma (ICVS) diagnosed, treatment options are limited either to wait-and-see or surgery. The transpromontorial and infrapromontorial approaches allow direct route to the fundus of internal auditory canal with certain advantages in preserving facial nerve and even cochlear nerve.

    OBJECTIVES: To describe the middle ear corridor approach for ICVS excision.

    METHODOLOGY: All transpromontorial and infrapromontorial approaches for ICVS excision were recruited. The surgeries were performed at an otologic center by a single experienced otologist.

    RESULTS: Three cases of ICVS Koos Type I were included in this review. Two cases were operated with exclusive endoscopic transcanal transpromontorial approach excision of tumor. One case underwent concurrent transcanal excision of ICVS through infrapromontorial approach with cochlear implantation. Two of them developed facial nerve paresis. The last patient recovered fully with viable cochlear nerve enabling hearing restoration with cochlear implant.

    CONCLUSION: The potential of surgery in ICVS via middle ear approach is a safe and direct route with promising outcome. This approach offers removal of the ICVS without interrupting facial and cochlear nerves. Hence, the preservation of facial function and hearing are possible.

  2. Samsuddin S, Arumugam PA, Md Amin MS, Yahya A, Musa N, Lim LL, et al.
    BJOG, 2020 03;127(4):490-499.
    PMID: 31778255 DOI: 10.1111/1471-0528.16031
    OBJECTIVE: To determine the association between maternal lipaemia and neonatal anthropometrics in Malaysian mother-offspring pairs.

    DESIGN: Prospective observational cohort study.

    SETTING: Single tertiary multidisciplinary antenatal clinic in Malaysia.

    POPULATION: A total of 507 mothers: 145 with gestational diabetes mellitus (GDM); 94 who were obese with normal glucose tolerance (NGT) (pre-gravid body mass index, BMI ≥ 27.5 kg/m2 ), and 268 who were not obese with NGT.

    METHODS: Maternal demographic, anthropometric, and clinical data were collected during an interview/examination using a structured questionnaire. Blood was drawn for insulin, C-peptide, triglyceride (Tg), and non-esterified fatty acid (NEFA) during the 75-g 2-hour oral glucose tolerance test (OGTT) screening, and again at 36 weeks of gestation. At birth, neonatal anthropometrics were assessed and data such as gestational weight gain (GWG) were extracted from the records.

    MAIN OUTCOME MEASURES: Macrosomia, large-for-gestational-age (LGA) status, cohort-specific birthweight (BW), neonatal fat mass (NFM), and sum of skinfold thickness (SSFT) > 90th centile.

    RESULTS: Fasting Tg > 95th centile (3.6 mmol/L) at screening for OGTT was independently associated with LGA (adjusted odds ratio, aOR 10.82, 95% CI 1.26-93.37) after adjustment for maternal glucose, pre-gravid BMI, and insulin sensitivity. Fasting glucose was independently associated with a birthweight ratio (BWR) of >90th centile (aOR 2.06, 95% CI 1.17-3.64), but not with LGA status, in this well-treated GDM cohort with pre-delivery HbA1c of 5.27%. In all, 45% of mothers had a pre-gravid BMI of <23 kg/m2 and 61% had a pre-gravid BMI of ≤ 25 kg/m2 , yet a GWG of >10 kg was associated with a 4.25-fold risk (95% CI 1.71-10.53) of BWR > 90th centile.

    CONCLUSION: Maternal lipaemia and GWG at a low threshold (>10 kg) adversely impact neonatal adiposity in Asian offspring, independent of glucose, insulin resistance and pre-gravid BMI. These may therefore be important modifiable metabolic targets in pregnancy.

    TWEETABLE ABSTRACT: Maternal lipids are associated with adiposity in Asian babies independently of pre-gravid BMI, GDM status, and insulin resistance.

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