Displaying publications 41 - 60 of 358 in total

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  1. Boo NY, Chan BH
    Med J Malaysia, 1998 Dec;53(4):358-64.
    PMID: 10971978
    A prospective observational study was carried out over a seven month period in the neonatal intensive care unit (NICU) of a large Malaysian maternity hospital to determine the rate of blood transfusion and the incidence of transfusion reactions in newborn infants. During the study period, the rates of blood transfusion was 6.1% (n = 117) of NICU admission or 8.2 per 1,000 live births. The median birth weight of the infants who had received blood transfusion was 1,740 grams (range: 725-4,350), and their mean gestational age was 33.6 weeks (sd = 5.1, range = 24-41 weeks). The median age of infants when they first received blood transfusion was 4.0 days (range: 1-27 days). When compared with infants of birth weight between 3,000 and 3,499 grams, infants of birth weight less than 1,500 grams received significantly higher median number of transfusions per infant, (p < 0.001). The incidence of transfusion reaction was 2.7% (3/110) of all transfused infants or 1.3% (3/223) of all blood transfusions. Febrile nonhemolytic reaction was the only type of transfusion reaction detected during the study period. This study showed that transfusion reactions in newborn infants were not common.
    Matched MeSH terms: Intensive Care Units, Neonatal
  2. Boo NY
    Med J Malaysia, 1994 Mar;49(1):1-3.
    PMID: 8057980
    Matched MeSH terms: Intensive Care Units, Neonatal/trends; Intensive Care Units, Neonatal/statistics & numerical data
  3. Boo NY, Wong YH, Khoo AK
    Med J Malaysia, 1989 Mar;44(1):87-8.
    PMID: 2696869
    Matched MeSH terms: Intensive Care Units, Neonatal*
  4. 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: Intensive Care Units, Neonatal
  5. Boo NY, Ang EBK, Neoh SH, Ang EL, Chee SC
    Malays J Pathol, 2022 Dec;44(3):443-459.
    PMID: 36591712
    OBJECTIVES: To determine the incidence, causative pathogens, morbidities, mortality, and risk factors associated with blood culture-positive early-onset sepsis (EOS, ≤72 hours of age) in symptomatic neonates admitted to the neonatal intensive care units (NICUs) of a middle-income country.

    STUDY DESIGN: Retrospective cohort study using data submitted prospectively to the Malaysian National Neonatal Registry (MNNR).

    SETTING: 44 Malaysian NICUs.

    PARTICIPANTS: All neonates born in 2015- 2020.

    RESULTS: EOS was reported in 991 neonates. The annual incidence of EOS increased from 0.46 to 0.49/1000 livebirths over the six years. The most common pathogen was Streptococcus agalactiae or Group B haemolytic streptococcus (GBS) (n=388, 39.2%), followed by Escherichia coli (E. coli) (n=80, 8.1%), Klebsiella spp (n=73, 7.4%), coagulase negative staphylococcus (CONS) (n=73, 7.4%), Pseudomonas spp (n=44, 4.4%) and methicillin-sensitive Staphylococcus aureus (n=34, 3.4%). The incidence of EOS due to GBS increased from 0.17 to 0.22/1000 livebirths. Morbidities and mortality were higher in those with EOS than without EOS. Multiple logistic regression analysis showed that Indian ethnic group, chorioamnionitis, gestation≥37weeks, female, spontaneous vaginal delivery, instrumental delivery, and surfactant therapy were significantly associated with increased risk of EOS due to GBS. Four factors were significantly associated with increased risk of non-GBS EOS (outborns, birthweight lt;1000 g, vaginal delivery, and surfactant therapy). Early continuous positive airway pressure was associated with significantly lower risk of EOS.

    CONCLUSION: The incidence of EOS showed an increasing trend in Malaysian NICUs. GBS was the most common causative pathogen. Several modifiable risk factors associated with EOS have been identified.

    Matched MeSH terms: Intensive Care Units, Neonatal
  6. 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: Intensive Care Units, Neonatal/statistics & numerical data*
  7. Boo NY, Suhaida AR, Rohana J
    Singapore Med J, 2015 Mar;56(3):164-8.
    PMID: 25532513
    This case-control study aimed to determine whether catheter use was significantly associated with coagulase-negative staphylococci (CoNS) colonisation and/or sepsis in neonates.
    Matched MeSH terms: Intensive Care Units, Neonatal
  8. 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: Intensive Care Units, Neonatal*
  9. Boo NY, Nor Azlina AA, Rohana J
    Singapore Med J, 2008 Mar;49(3):204-8.
    PMID: 18363001
    This study was designed to determine the sensitivity and specificity of a semi-quantitative procalcitonin (PCT) test kit for the diagnosis of neonatal sepsis.
    Matched MeSH terms: Intensive Care Units, Neonatal
  10. Boo NY
    Singapore Med J, 2009 Feb;50(2):152-9.
    PMID: 19296030
    The neonatal resuscitation programme (NRP) published by the American Academy of Paediatrics and American Heart Association was launched in Malaysia in 1996. This study aimed to review the outcome of NRP in Malaysia during the first eight years.
    Matched MeSH terms: Intensive Care Units, Neonatal
  11. Boo NY, Mohd-Amin I, Bilkis AA, Yong-Junina F
    Singapore Med J, 2006 Sep;47(9):763-8.
    PMID: 16924357
    Introduction: The aim of this study was to determine predictors of failed closure of patent ductus arteriosus (PDA) following a single course of indomethacin in symptomatic preterm infants.
    Methods: This prospective observational study was carried out on 60 preterm infants weighing less than 1,750 g with symptomatic PDA confirmed by echocardiography. At a median age of 7.0 days (interquartile range 4.0), they were given indomethacin of 0.1 mg/kg/day intravenously daily for six days. Closure of PDA was reassessed by echocardiography upon completion of therapy.
    Results: The PDA of 40 percent (n=24) of these infants remained patent. Forward logistic regression analysis showed that the only significant predictors of failed PDA closure in these infants were: PDA size (adjusted odds-ratio [OR] is 7.0; 95 percent confidence interval [CI] of OR is 2.0, 24.8; p-value is 0.002), birth weight (adjusted OR is 0.996; 95 percent CI of OR is 0.993, 1.000; p-value is 0.03) and platelet count (adjusted OR is 0.987; 95 percent CI is 0.975, 1.000; p-value is 0.045). Gestational age, maternal age and left atrium/aorta ratios were not significant predictors.
    Conclusion: Larger PDA, lower birth weight and lower platelet count were significant predictors of high failure in indomethacin therapy given late at one week of life.
    Matched MeSH terms: Intensive Care Units, Neonatal
  12. Boo NY, Cheah IG
    Singapore Med J, 2016 Aug;57(8):456-63.
    PMID: 27549510 DOI: 10.11622/smedj.2016137
    INTRODUCTION: This study aimed to determine the incidence of hypoxic-ischaemic encephalopathy (HIE) and predictors of HIE mortality in Malaysian neonatal intensive care units (NICUs).

    METHODS: This was a retrospective study of data from 37 NICUs in the Malaysian National Neonatal Registry in 2012. All newborns with gestational age ≥ 36 weeks, without major congenital malformations and fulfilling the criteria of HIE were included.

    RESULTS: There were 285,454 live births in these hospitals. HIE was reported in 919 newborns and 768 of them were inborn, with a HIE incidence of 2.59 per 1,000 live births/hospital (95% confidence interval [CI] 2.03, 3.14). A total of 144 (15.7%) affected newborns died. Logistic regression analysis showed that the significant predictors of death were: chest compression at birth (adjusted odds ratio [OR] 2.27, 95% CI 1.27, 4.05; p = 0.003), being outborn (adjusted OR 2.65, 95% CI 1.36, 5.13; p = 0.004), meconium aspiration syndrome (MAS) (adjusted OR 2.16, 95% CI 1.05, 4.47; p = 0.038), persistent pulmonary hypertension of the newborn (PPHN) (adjusted OR 4.39, 95% CI 1.85, 10.43; p = 0.001), sepsis (adjusted OR 4.46, 95% CI 1.38, 14.40; p = 0.013), pneumothorax (adjusted OR 4.77, 95% CI 1.76, 12.95; p = 0.002) and severe HIE (adjusted OR 42.41, 95% CI 18.55, 96.96; p < 0.0001).

    CONCLUSION: The incidence of HIE in Malaysian NICUs was similar to that reported in developed countries. Affected newborns with severe grade of HIE, chest compression at birth, MAS, PPHN, sepsis or pneumothorax, and those who were outborn were more likely to die before discharge.

    Matched MeSH terms: Intensive Care Units, Neonatal*
  13. Boo NY, Ng SF, Lim VK
    J Hosp Infect, 2005 Sep;61(1):68-74.
    PMID: 15953660
    To determine the risk factors for rectal colonization by extended-spectrum beta-lactamase (ESBL) Klebsiella sp. in 368 newborns admitted consecutively to a neonatal intensive care unit over six months, rectal swabs were cultured on admission and weekly until discharge. Eighty infants (21.7%) had ESBL Klebsiella sp. cultured from their rectal swabs. Eighty controls were selected at random from infants with negative cultures admitted within the 14-day period prior to the detection of ESBL Klebsiella sp. in the cases. Cases had significantly lower birth weight, gestational age, earlier age of admission, longer hospital stay, and higher proportions of congenital malformations, early-onset pneumonia and respiratory distress syndrome compared with controls. Significantly more cases received mechanical ventilation, nasal continuous positive airway pressure support, total parenteral nutrition, umbilical vascular catheterization, arterial line insertion, urinary bladder catheterization, and prior treatment with antibiotics. However, stepwise logistic regression analysis showed that only two independent risk factors were significantly associated with ESBL rectal colonization: duration of hospital stay [adjusted odds ratio (OR): 1.3; 95% confidence intervals (CI): 1.2, 1.4; P<0.0001) and early-onset pneumonia (adjusted OR: 8.3; 95% CI: 1.6, 43.4; P=0.01).
    Matched MeSH terms: Intensive Care Units, Neonatal
  14. 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: Intensive Care Units, Neonatal
  15. Boon Tat Y, Muniandy RK, Ng Mooi Hang L
    Case reports in anesthesiology, 2018;2018:4245809.
    PMID: 30647972 DOI: 10.1155/2018/4245809
    A 79-year-old lady, who was taking warfarin, presented to the Emergency Department with a painless anterior neck swelling, which was associated with hoarseness of voice, odynophagia, and shortness of breath. She first noticed the swelling after she removed her dentures in the evening. On examination, she had an increased respiratory rate. There was a large submandibular swelling at the anterior side of her neck. Upon mouth opening, there was a hematoma at the base of her tongue, which extended to both sides of the tonsillar pillars. The patient was intubated with a video laryngoscope due to her worsening respiratory distress. Intravenous vitamin K and fresh frozen plasma were given immediately. The patient was admitted to the ICU for ventilation and observation. The hematoma subsided after 2 days and she was discharged well.
    Matched MeSH terms: Intensive Care Units
  16. Chan L, Yasmin AH, Ngeow YF, Ong GS
    Med J Malaysia, 1994 Mar;49(1):62-7.
    PMID: 8057993
    A closed enteral delivery system consisting of a cardboard tetrapack containing the sterile ready-to-use liquid feed and an independent sterile administration set, has been devised. We found bacterial contamination within 24 hours in this system in patients on ventilatory support in intensive care. This emphasises the need for meticulous care in handling enteral feeding systems to prevent environmental contamination.
    Matched MeSH terms: Intensive Care Units
  17. Chan PW, Goh A, Lum L
    Pediatr Int, 2001 Feb;43(1):53-7.
    PMID: 11208000
    BACKGROUND: The clinical profile of severe upper airway obstruction, a challenging acute pediatric emergency, has not been extensively documented in the developing nations of the tropics.

    METHODS: The diagnostic categories, severity of illness and outcome from 63 episodes of severe upper airway obstruction in 56 children admitted to the Pediatric Intensive Care Unit between January 1994 and December 1999 were reviewed. Outcome variables studied included requirement for ventilation, mortality and complications. Severity of illness was determined with the Pediatric Risk of Mortality (PRISM) II score.

    RESULTS: Viral croup (29%) was the most common diagnosis, followed by mediastinal malignancy (13%), bacterial tracheitis (11%) and Pierre Robin syndrome (11%). There were no admissions for acute epiglottitis. Thirty episodes (48%) required ventilation for a median duration of 4.0 days. Bacterial tracheitis (100%) and subglottic stenosis (100%) were the most likely diagnoses requiring ventilation. Difficulty in intubation was encountered in 13 episodes (43%) involving, in particular, patients with bacterial tracheitis (83%; P = 0.006). Only two patients required a tracheostomy. The overall mortality was 11%. The PRISM score for all categories was generally low (mean 10.3 +/- 1.0; median 9.0). Non-survivors had a significantly higher PRISM II score than survivors (27.4 +/- 9.7 vs 8.1 +/- 4.9, respectively; P = 0.002) and were more likely to include children with bacterial tracheitis and mediastinal malignancy.

    CONCLUSIONS: There is marked heterogeneity in the causes of upper airway obstruction in the tropics with viral croup remaining the most common. A significant proportion required ventilation, but outcome is generally favorable, except in those with bacterial tracheitis and mediastinal malignancy.

    Matched MeSH terms: Intensive Care Units, Pediatric
  18. Chen Y, Liu Z, Wang Q, Gao F, Xu H, Ke L, et al.
    Crit Care, 2024 Jan 20;28(1):26.
    PMID: 38245768 DOI: 10.1186/s13054-024-04813-6
    BACKGROUND AND AIMS: Exclusive enteral nutrition (EN) is often observed during the first week of ICU admission because of the extra costs and safety considerations for early parenteral nutrition. This study aimed to assess the association between nutrition intake and 28-day mortality in critically ill patients receiving exclusive EN.

    METHODS: This is a post hoc analysis of a cluster-randomized clinical trial that assesses the effect of implementing a feeding protocol on mortality in critically ill patients. Patients who stayed in the ICUs for at least 7 days and received exclusive EN were included in this analysis. Multivariable Cox hazard regression models and restricted cubic spline models were used to assess the relationship between the different doses of EN delivery and 28-day mortality. Subgroups with varying lactate levels at enrollment were additionally analyzed to address the potential confounding effect brought in by the presence of shock-related hypoperfusion.

    RESULTS: Overall, 1322 patients were included in the analysis. The median (interquartile range) daily energy and protein delivery during the first week of enrollment were 14.6 (10.3-19.6) kcal/kg and 0.6 (0.4-0.8) g/kg, respectively. An increase of 5 kcal/kg energy delivery was associated with a significant reduction (approximately 14%) in 28-day mortality (adjusted hazard ratio [HR] = 0.865, 95% confidence interval [CI]: 0.768-0.974, P = 0.016). For protein intake, a 0.2 g/kg increase was associated with a similar mortality reduction with an adjusted HR of 0.868 (95% CI 0.770-0.979). However, the benefits associated with enhanced nutrition delivery could be observed in patients with lactate concentration ≤ 2 mmol/L (adjusted HR = 0.804 (95% CI 0.674-0.960) for energy delivery and adjusted HR = 0.804 (95% CI 0.672-0.962) for protein delivery, respectively), but not in those > 2 mmol/L.

    CONCLUSIONS: During the first week of critical illness, enhanced nutrition delivery is associated with reduced mortality in critically ill patients receiving exclusive EN, only for those with lactate concentration ≤ 2 mmol/L.

    TRIAL REGISTRATION: ISRCTN12233792, registered on November 24, 2017.

    Matched MeSH terms: Intensive Care Units
  19. 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: Intensive Care Units, Neonatal*
  20. Chong SL, Dang H, Ming M, Mahmood M, Zheng CQS, Gan CS, et al.
    Pediatr Crit Care Med, 2021 Apr 01;22(4):401-411.
    PMID: 33027240 DOI: 10.1097/PCC.0000000000002575
    OBJECTIVES: Traumatic brain injury remains an important cause of death and disability. We aim to report the epidemiology and management of moderate to severe traumatic brain injury in Asian PICUs and identify risk factors for mortality and poor functional outcomes.

    DESIGN: A retrospective study of the Pediatric Acute and Critical Care Medicine Asian Network moderate to severe traumatic brain injury dataset collected between 2014 and 2017.

    SETTING: Patients were from the participating PICUs of Pediatric Acute and Critical Care Medicine Asian Network.

    PATIENTS: We included children less than 16 years old with a Glasgow Coma Scale less than or equal to 13.

    INTERVENTIONS: None.

    MEASUREMENTS AND MAIN RESULTS: We obtained data on patient demographics, injury circumstances, and PICU management. We performed a multivariate logistic regression predicting for mortality and poor functional outcomes. We analyzed 380 children with moderate to severe traumatic brain injury. Most injuries were a result of road traffic injuries (174 [45.8%]) and falls (160 [42.1%]). There were important differences in temperature control, use of antiepileptic drugs, and hyperosmolar agents between the sites. Fifty-six children died (14.7%), and 104 of 324 survivors (32.1%) had poor functional outcomes. Poor functional outcomes were associated with non-high-income sites (adjusted odds ratio, 1.90; 95% CI, 1.11-3.29), Glasgow Coma Scale less than 8 (adjusted odds ratio, 4.24; 95% CI, 2.44-7.63), involvement in a road traffic collision (adjusted odds ratio, 1.83; 95% CI, 1.04-3.26), and presence of child abuse (adjusted odds ratio, 2.75; 95% CI, 1.01-7.46).

    CONCLUSIONS: Poor functional outcomes are prevalent after pediatric traumatic brain injury in Asia. There is an urgent need for further research in these high-risk groups.

    Matched MeSH terms: Intensive Care Units, Pediatric
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