Displaying publications 1 - 20 of 45 in total

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  1. Abdullah A, Wilfred R, Yusof ANM, Hashim WFW
    Int Tinnitus J, 2023 Dec 04;27(1):16-26.
    PMID: 38050880 DOI: 10.5935/0946-5448.20230004
    OBJECTIVE: This study aimed to evaluate hearing loss among very low birth weight babies in two hospitals in Malaysia.

    MATERIAL AND METHODS: A total of 380 babies from Hospital Canselor Tuanku Muhriz (HCTM), Kuala Lumpur and Sarawak General Hospital (SGH) were recruited in this retrospective study. All babies with birthweight less than 1500grams nursed in the Neonatal Intensive Care Unit (NICU) between January 2014 till December 2019 was included in the study. Data was analysed on demography, interval taken for hearing intervention and defaulter rate. The data of patient parameters between both hospitals were analysed and association between various factors were evaluated.

    RESULTS: A total 187 Very Low Birth Weight (VLBW) Kuala Lumpur babies and 193 VLBW Sarawak babies met the inclusion and exclusion criteria, among which 10.1% and 10.9% had SNHL in Kuala Lumpur and Sarawak respectively. CHL was reported among 8.6% Kuala Lumpur and 14% of Sarawak babies. When studied on the different types and degrees of hearing loss, 2.6% of Kuala Lumpur babies born less than 28 Weeks Gestation Age (WGA) had moderate SNHL and 2.0% of Sarawak babies had profound SNHL. In this study only gestational age (week) (p=0.003) and dysmorphism (p<0.001) were statistically significant to be associated with hearing loss.

    CONCLUSION: The prevalence of hearing loss among VLBW babies in Kuala Lumpur was 20.3% and 24.8% in Sarawak. Gestational age (p=0.044) and presence of dysmorphism (p<0.001) were found to have statistically significant association with prevalence of hearing loss. The defaulter rate at Kuala Lumpur was 52.6% and 42.3% in Sarawak.

    Matched MeSH terms: Infant, Very Low Birth Weight
  2. Boo NY, Guat-Sim Cheah I, Malaysian National Neonatal Registry
    J Trop Pediatr, 2013 Dec;59(6):447-52.
    PMID: 23774951 DOI: 10.1093/tropej/fmt051
    This study aimed to determine the prevalence of admission hypothermia (AH) among very-low-birth-weight (≤1500 g) infants in 32 Malaysian neonatal intensive care units (NICUs). This was a retrospective analysis of prospectively collected data of all very-low-birth-weight infants admitted and a questionnaire survey of the practice of AH prevention. Of the 3768 (99.8%) infants with admission temperature recorded, 64.8% (n = 2440) were hypothermic: 40.3% (n = 983) mildly (36.0-36.4°C), 58.5% (n = 1428) moderately (32.0-35.9°C) and 1.2% (n = 29) severely (<32.0°C). Mean ambient temperature of these NICUs was 22.8°C (SD = 2.7, n = 28) in labour rooms and 20.1°C (SD = 1.6, n = 30) in operation theatres. None of the NICUs practised complete care bundle against AH at birth (i.e. use of pre-warmed radiant warmer and cling wrap, ambient temperature of at least 25°C and use of pre-warmed transport incubator). Care bundle against neonatal hypothermia should be actively promoted in Malaysian labour rooms and operation theatres.
    Matched MeSH terms: Infant, Very Low Birth Weight*
  3. Boo NY, Jamli FM
    J Paediatr Child Health, 2007 Dec;43(12):831-6.
    PMID: 17803670
    To compare weight gain and head growth in very-low-birthweight (VLBW, <1501 g) infants with or without exposure to short duration of skin-to-skin contact (STSC) during their stay in a neonatal intensive care unit.
    Matched MeSH terms: Infant, Very Low Birth Weight
  4. Boo NY, Cheah IG, Neoh SH, Chee SC, Malaysian National Neonatal Registry
    Neonatology, 2016;110(2):116-24.
    PMID: 27074004 DOI: 10.1159/000444316
    BACKGROUND: Early nasal continuous positive airway pressure (EnCPAP) therapy after birth for very low birth weight (VLBW; <1,500 g) neonates has been reported to be beneficial in developed countries. Its benefits in developing countries, such as Malaysia, are unknown.

    OBJECTIVES: This study aimed to determine EnCPAP rates in 36 neonatal intensive care units of the Malaysian National Neonatal Registry (MNNR) in 2013, to compare the outcomes of VLBW neonates with and without EnCPAP, and to determine whether the availability of CPAP facilities and unit policies played a significant role in EnCPAP rates.

    METHODS: First, a retrospective cohort study was conducted of VLBW neonates born in the hospitals participating in the study without major congenital abnormalities in the MNNR. This was followed by a questionnaire survey of these hospitals focussed on CPAP facilities and unit policies.

    RESULTS: Of the 2,823 neonates, 963 (34.1%) received EnCPAP. Amongst EnCPAP neonates significantly fewer deaths were recorded (10.9 vs. 21.7%; p < 0.001), less bronchopulmonary dysplasia was observed (BPD; 8.0 vs. 11.7%; p = 0.002) and fewer mechanical ventilation days were necessary (p < 0.001) than in non-EnCPAP neonates. Logistic regression analysis showed that EnCPAP was significantly associated with a lower mortality (adjusted OR 0.623; 95% CI 0.472, 0.824; p = 0.001) and BPD among survivors (adjusted OR 0.585; 95% CI 0.427, 0.802; p = 0.001). The median EnCPAP rate of the 36 hospitals was 28.4% (IQR 14.3-38.7). Hospitals with CPAP facilities in the delivery suites (p = 0.001) and during transport (p = 0.001) and a policy for EnCPAP (p = 0.036) had significantly higher EnCPAP rates.

    CONCLUSION: EnCPAP reduced mortality and BPD in Malaysian VLBW neonates. Resource-strapped developing countries should prioritise the use of this low-cost therapy.

    Matched MeSH terms: Infant, Very Low Birth Weight*
  5. Boo NY, Goh ES
    J Trop Pediatr, 1999 Aug;45(4):195-201.
    PMID: 10467829
    In a case-control study carried out in the Kuala Lumpur Maternity Hospital between 1st July 1995 and 31st January 1996 the objectives were (1) to determine the rate of breastfeeding in surviving very low birthweight (VLBW, < or = 1500 g) Malaysian infants following the introduction of the Baby Friendly Hospital Concept, and (2) to identify significant predictors associated with successful breastfeeding in these infants. During the study period, 201 (1.24 per cent) of live-born infants were VLBW infants, 192 (95.5 per cent) were Malaysians, and 141 (73.4 per cent) of them survived to go home. The breastfeeding rate among all surviving VLBW Malaysian infants at the time of discharge was 40.2 per cent (57/141). The mothers of 126 (89.4 per cent) VLBW Malaysian infants were interviewed before discharge. Logistic regression analysis showed that, after controlling for various confounders, the significant predictors associated with successful breastfeeding were: (a) Malay mothers (odds ratio: 6.0; 95 per cent CI: 1.9, 19.4), (b) mothers with educational levels of between 7 and 9 years (odds ratio: 3.6; 95 per cent CI: 1.0, 12.2), and (c) earlier age of commencement of enteral feeds in the VLBW infants (for each additional day delay in commencement of feeding, odds ratio of breastfeeding was 0.5; 95 per cent CI: 0.4, 0.8).
    Matched MeSH terms: Infant, Very Low Birth Weight*
  6. Boo NY, Puah CH, Lye MS
    J Trop Pediatr, 2000 Feb;46(1):15-20.
    PMID: 10730035
    A case-control study was carried out on 152 extremely low birthweight (ELBW, < 1000 g) infants born consecutively in a large Malaysian maternity hospital during a 21-month period to determine the significant predictors associated with survival at discharge. Forty-nine (32.2 per cent) of these infants survived and 103 (67.8 per cent) died. The survivors weighed significantly heavier (mean = 888 g, SD = 99) than infants who died (mean = 763 g, SD = 131; p < 0.0001). They were also of higher gestational age (mean = 28.7 weeks, SD = 2.2) than those who died (mean = 26.7 weeks, SD = 2.5; p < 0.0001). Logistic regression analysis showed that, after controlling for various confounders, only three factors were significantly associated with the survival of these infants. These were: (1) increasing birthweight of the infants (with every gram increase in birthweight, adjusted odds ratio of survival was: 1.009; 95 per cent CI 1.004, 1.015; p = 0.0006); (2) given nasal continuous positive airway pressure for treatment of respiratory distress syndrome (adjusted odds ratio of survival: 4.2; 95 per cent CI 1.2, 14.0; p = 0.02); and (3) given expressed breastmilk (adjusted odds ratio of survival: 57.5; 95 per cent CI: 7, 474; p = 0.0002). Maternal illness, intrapartum problems, ethnicity, gestational age, use of antenatal steroid, modes of delivery, Apgar scores, congenital anomalies, respiratory distress syndrome, persistent ductus arteriosus, septicemia, necrotising enterocolitis, chronic lung disease, oxygen therapy, intermittent positive pressure ventilation, surfactant therapy, and blood transfusion were not significant factors associated with increased survival.
    Matched MeSH terms: Infant, Very Low Birth Weight*
  7. Boo NY, Ong LC, Lye MS, Chandran V, Teoh SL, Zamratol S, et al.
    J Paediatr Child Health, 1996 Oct;32(5):439-44.
    PMID: 8933407
    OBJECTIVE: To compare the morbidities in the very low birthweight (VLBW; < 1500 g) and normal birthweight (NBW; > or = 2500 g) Malaysian infants during the first year of life.

    METHODOLOGY: Prospective observational cohort study of consecutive surviving VLBW infants and randomly sampled NBW infants born in the Kuala Lumpur Maternity Hospital between 1 December 1989 and 31 December 1992. Infants were followed up regularly during the first year of life, after correction for prematurity.

    RESULTS: Compared with NBW infants (n = 106), VLBW infants (n = 127) had significantly higher risk of failure to thrive (odds ratio [OR] = 8.0, 95% confidence intervals [CI]: 1.1 to 354.3), wheezing (OR = 3.7, 95% CI: 1.6 to 9.3), rehospitalization (OR = 2.3, 95% CI: 1.1 to 5.0), cerebral palsy (OR = 8.6, 95% CI: 2.0 to 77.6), neurosensory hearing loss (OR = 12.0, 95% CI: 1.7 to 513.6) and visual loss (7.9 vs 0%, P = 0.002). The mean mental developmental index (MDI) and mean psychomotor developmental index (PDI) at 1 year of age were significantly lower among VLBW infants (MDI 99 [SD = 28], PDI 89 [SD = 25]) than NBW infants (MDI 106 [SD = 18], PDI 101 [SD = 18]) (95% CI for difference between means being MDI: -14.1 to -1.7; and PDI: -17.6 to -6.0). Logistic regression analysis showed that among VLBW infants: (i) male sex, Malay ethnicity and bronchopulmonary dysplasia were significant risk factors associated with wheezing; (ii) longer duration of oxygen therapy during the neonatal period, seizures after the post-neonatal period and wheezing were significant risk factors associated with rehospitalization; and (iii) longer duration of oxygen therapy during the neonatal period was a significant risk factor associated with adverse neurodevelopmental outcome during the first year of life.

    CONCLUSIONS: Compared with NBW infants, VLBW Malaysian infants had significantly higher risks of physical and neuro-developmental morbidities.

    Matched MeSH terms: Infant, Very Low Birth Weight/growth & development*
  8. Boo NY, Soon CC, Lye MS
    J Trop Pediatr, 2000 Oct;46(5):272-7.
    PMID: 11077935 DOI: 10.1093/tropej/46.5.272
    An observational study was carried out in the Kuala Lumpur Maternity Hospital to determine the risk factors associated with feed intolerance in very low birthweight (VLBW, <1501 g) infants given intermittent 3-hourly enteral feeds within 72h after birth. Feed intolerance developed in 85 (64.4 per cent) of 132 infants. Logistic regression analysis showed that the only significant risk factor associated with feed intolerance was the age when the first feed was commenced. For each hour delay in the age of the infants when the first feed was given, the adjusted odds ratios of feed intolerance was 1.03 (95 per cent confidence intervals: 1.01-1.05; p = 0.01). Other factors (modes of delivery, Apgar score at 1 min, sex, ethnicity, history of resuscitation at birth, birthweight, gestation, multiple pregnancy, perinatal asphyxia, types of milk, hypothermia before first feed, hypotension before first feed, respiratory distress syndrome, patent ductus arteriosus, septicaemia, theophylline therapy, indomethacin therapy, ventilatory support, continuous positive airway pressure, umbilical catheterization, and surfactant therapy) were not significantly associated with feed intolerance. Our study suggests that to promote tolerance of enteral feeds in VLBW infants, intermittent orogastric feeds should be commenced as soon as possible during the first 72 h of life.
    Matched MeSH terms: Infant, Very Low Birth Weight*
  9. Boo NY, Cheah IG
    Singapore Med J, 2012 Dec;53(12):826-31.
    PMID: 23268157
    This study aimed to identify the risk factors associated with necrotising enterocolitis (NEC) in very low birth weight (VLBW; weight < 1,501 g) infants in Malaysian neonatal intensive care units (NICUs).
    Matched MeSH terms: Infant, Very Low Birth Weight*
  10. Boo NY, Cheah IG
    Singapore Med J, 2016 Mar;57(3):144-52.
    PMID: 26996633 DOI: 10.11622/smedj.2016056
    This study aimed to determine whether patient loads, infant status on admission and treatment interventions were significantly associated with inter-institutional variations in sepsis rates in very-low-birth-weight (VLBW) infants in the Malaysian National Neonatal Registry (MNNR).
    Matched MeSH terms: Infant, Very Low Birth Weight*
  11. Boo NY, Nordiah AJ, Alfizah H, Nor-Rohaini AH, Lim VK
    J Hosp Infect, 2001 Dec;49(4):274-81.
    PMID: 11740876
    The objective of this study was to compare the rates of bacterial contamination of expressed breast milk (EBM) obtained by manual expression and breast pumps in mothers of very low birthweight (VLBW) infants (<1501 g). This was a randomized, controlled study carried out on 28 mothers of such babies and 92 specimens of EBM were collected: 41 specimens from 13 mothers assigned to the manual group and 51 specimens from 15 mothers in the breast-pump group. EBM was cultured quantitatively by the Miles and Misra method. Breast milk expressed by breast pumps (86.3% or 44/51 specimens) had a significantly higher rate of bacterial contamination than milk expressed by the manual method (61.0% or 25/41 specimens) (P= 0.005). When breast milk was expressed in the hospital, there was no significant difference in contamination rates between the two methods. When breast milk was expressed at home, the rates of bacterial contamination by staphylococci (P= 0.003) and Gram-negative bacilli (P= 0.002) were significantly higher in the breast-pump group than the manual group. In conclusion, the rate of bacterial contamination of EBM of mothers of VLBW infants was high, especially when EBM was obtained by the breast pump or when expression was carried out at home.
    Matched MeSH terms: Infant, Very Low Birth Weight
  12. Cheah IG, Soosai AP, Wong SL, Lim TO, Cost-Effectiveness NICU Study Group
    J Perinatol, 2005 Jan;25(1):47-53.
    PMID: 15372062
    To perform a cost-effective analysis on the care of infants between 1000 and 1500 g birthweight (the study group), where outcomes are measured as survival to 1 year of age.
    Matched MeSH terms: Infant, Very Low Birth Weight*
  13. Cheong SM, Totsu S, Nakanishi H, Uchiyama A, Kusuda S
    J Neonatal Perinatal Med, 2016;9(1):99-105.
    PMID: 27002262 DOI: 10.3233/NPM-16915054
    OBJECTIVE: In order to evaluate safety and usefulness of peripherally inserted double lumen central catheter (PIDLCC) in very low birth weight (VLBW) infants, outcomes of VLBW infants who had PIDLCC was studied.

    SUBJECTIVE: Thirty-nine VLBW infants who were admitted to our NICU in 2013 were retrospectively analyzed.

    RESULTS: Mean birth weight and gestational age was 1042.7 gram and 28.5 weeks, respectively. Total duration of indwelling PIDLCC was 1121 days (mean 28.5+18.2 days) with 85 PIDLCCs used. Dressing at the insertion site was done twice weekly with 10% povidone iodine. Four (10.3% with mean of 48 days) infants had catheter-related blood stream infection (CRBSI), with a 3.57 infection per 1000 catheter-day. The mean for days of PIDLCC in 35 infants without CRBSI was 26.5 days. Organisms isolated were Staphylococcus epidermidis, Staphylococcus aureus and Staphylococcus capitis ureolytic. Our study showed significant difference in the duration of indwelling catheter (p = 0.023) and intraventricular hemorrhage (p = 0.043) between the CRBSI group and non-CRBSI group. Five (12.8%) infants had abnormal thyroid function test, in which two infants required thyroxine supplementation upon discharge. However, duration of PIDLCC and abnormal thyroid function test was not statistically significant (p = 0.218). One (2.5%) infant died (death was not related to CRBSI). There was no serious adverse effects secondary to PIDLCC.

    CONCLUSION: It is concluded that the use and maintenance of PIDLCC is safe for VLBW infants, but close monitoring should be observed to detect early signs of infection.

    Matched MeSH terms: Infant, Very Low Birth Weight
  14. Choo MM, Martin FJ, Theam LC, U-Teng C
    J AAPOS, 2009 Oct;13(5):446-9.
    PMID: 19840721 DOI: 10.1016/j.jaapos.2009.06.008
    To identify differences in incidence, risk factors, and outcomes of retinopathy of prematurity (ROP) between 2 birth weight categories within a cohort of extremely low birth weight (ELBW) infants in Malaysia.
    Matched MeSH terms: Infant, Very Low Birth Weight*
  15. Chye JK, Lim CT, Leong HL, Wong PK
    Ann Acad Med Singap, 1999 Mar;28(2):193-8.
    PMID: 10497665
    This study aims to determine the prevalence of and risk factors associated with retinopathy of prematurity (ROP) in very low birth weight (VLBW) infants. All premature VLBW infants, admitted into the neonatal intensive care unit of the University Hospital Kuala Lumpur, were screened from 4 weeks of life. Perinatal and neonatal data were retrieved from the infants' medical notes. Between August 1994 and July 1996, 100 infants had their eyes examined serially. Of the 15 (15%) infants with ROP, all were less than 31 weeks gestation, and only 1 infant had birth weight above 1250 g. Five (5%) infants had severe ROP; 4 infants underwent cryotherapy for stage 3 threshold disease. Infants with ROP, as compared to infants without ROP, had lower birth weight [mean (SEM) 993 (50) g versus 1205 (22) g, P < 0.001], lower gestational age [mean (SEM) 28.0 (0.4) weeks versus 30.1 (0.2) weeks, P < 0.001], higher rates of patent ductus arteriosus and chronic lung disease, greater number of radiographic examinations and episodes of late-onset suspected/confirmed sepsis, and required longer duration of supplemental oxygen, ventilation, xanthine, antibiotics and intralipid use, but were slower to establish full enteral feeds. On multivariate logistic regression analysis, birth weight < or = 1000 g [OR 2.38, 95% CI 1.25, 4.55, P = 0.009] and gestational age < or = 28 weeks [OR 2.86, 95% CI 1.47, 5.56, P = 0.002] were significant predictors of increased risk of this disease. In conclusion, ROP is strongly associated with smaller, more immature and sicker neonates. Prevention of prematurity would help reduce the incidence of this disease.
    Matched MeSH terms: Infant, Very Low Birth Weight*
  16. Chye JK, Lim CT
    Singapore Med J, 1999 Sep;40(9):565-70.
    PMID: 10628243
    To determine the survival rates and risk factors associated with mortality in premature very low birth weight or VLBW (< or = 1500 grams) infants.
    Matched MeSH terms: Infant, Very Low Birth Weight*
  17. Deng, C.T., Lim, N.L., Sham Kasim, M., Weller, V.
    MyJurnal
    The neonatal Intensive Care Unit (NICU) in the Maternity Hospital Kuala Lumpur (MHKL) was frequently understaffed and overcrowded. A separate special care nursery (called K5) was set up in July 1991 for the purpose of providing non-intensive neonatal care for infants. Mothers were simultaneously admitted and they provided a major bulk of feeding and nursing care. Case records for 2 months prior to and 2 months after opening of the ward were studied. The average duration of hospital stay per neonate was shorter in the later period (9.18 days vs 11.05 days, p < 0.05). Also the very low birth weight infants (VLBW) gained weight faster (28 grams a day) compared to similar infants in the earlier period (22 grams a day, p < 0.05).
    Matched MeSH terms: Infant, Very Low Birth Weight
  18. Hassan, H., Quah, B.S., Haider, D., Rostenberghe, H.V.
    MyJurnal
    The aim of the study was to determine the effect of pro-phylactic low dose dopamine infusion on renal function in ventilated premature newborns with respiratory dis-tress syndrome (RDS). A prospective, randomised con-trolled trial was conducted, using low dose dopamine [2.5μg/kg/min] in the treatment of preterm babies with gestational age 28-36 weeks requiring mechanical ventilation for RDS within six hours of age. Thirty-six babies were enrolled and 19 babies were randomly assigned to the treatment groups. The renal function after 72 hours for the treatment and control groups respectively were: urine output (ml/kg/hour) 3.3±0.4 and 3.0±0.3 [p=0.55], urine specific gravity 1006±0.6 and 1006±1.0 [p=0.68], fractional excretion of sodium 4.1±0.8 and 2.6±0.4 [p=0.10], fractional excretion of potassium 37.44 ± 5.6 and 16.49 ± 2.2 [p=0.001], glomerular filtration rate (ml/day/1.72m2) 16±2.6 and 25.6±4.5 [p=0.06]. There were no significant differ-ences in the frequency of hypotension, oliguria and sep-sis between the two groups. There were seven deaths (36.8%) in the treatment group (six due to sepsis and one due to prematurity) and two deaths (11.8%) in the control group (both due to sepsis) (p = 0.13). In con-clusion prophylactic low-dose dopamine infusion did not improve the renal function in ventilated premature babies with respiratory distress syndrome. The results of this study do not support the routine use of prophylac-tic low-dose dopamine in ventilated preterm babies with respiratory distress syndrome.
    Matched MeSH terms: Infant, Very Low Birth Weight
  19. Ho J, Malaysian Very Low Birth Weight Study Group
    Singapore Med J, 2001 Aug;42(8):355-9.
    PMID: 11764052
    To compare the neonatal course of small for gestational age (SGA) and appropriate for gestational age (AGA) preterm infants 1500 g or less birthweight.
    Matched MeSH terms: Infant, Very Low Birth Weight*
  20. Ho JJ, Amar HS, Mohan AJ, Hon TH
    J Paediatr Child Health, 1999 Apr;35(2):175-80.
    PMID: 10365356
    OBJECTIVE: To examine the prevalence and pattern of neurodevelopmental handicap at 2 years of age in very low birth weight infants (VLBW) admitted in 1993 to a level 3 Malaysian nursery.

    METHODS: All VLBW babies born in the hospital or referred for neonatal care during 1993 were enrolled prospectively in the study. At 2 years of age development was assessed using the Griffiths mental scales. Neurological, hearing and visual assessments were graded into five groups according to functional handicap. Control infants were randomly selected during attendance at a primary health care clinic.

    RESULTS: One hundred and fifty VLBW infants were admitted and 82 (54.6%) survived to 2 years, of whom 77 (93.9%) were assessed. The mean General Quotient (GQ) on the Griffiths Scales was 94 (15.7) for the study group and 104 (8.3) for the 60 controls. For GQ, 21 (27.3%) of the study population were 1 or more SD below the mean (18 between 1 and 2 SD and 3 > 2 SD) compared with 1 (1.6%) of the controls who was 1-2 SD below the mean. Visual impairment occurred in 2 study infants and none of the controls. There was no hearing impairment in either group. Cerebral palsy occurred in 3 (1 mild and 2 moderate-severe) of the study group and none of the controls. Functionally 18 (23.3%) of the study group had mild handicap, 1 (1.3%) moderate, 2 (2.5%) severe, 2 (2.5%) multiply severe and 54 (70.2%) were normal.

    CONCLUSION: Although survival was low, overall rates of functional handicap were similar to those reported in developed countries but the proportion with moderate or severe handicap was low.

    Matched MeSH terms: Infant, Very Low Birth Weight/growth & development*
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