Even though vaccines are effective for prevention of diseases, compliance with recommended schedules of immunisation in early childhood is not always complete. Identification of potential risk factors associated with under-immunisation may help increase vaccination uptake. The objectives of this study were to determine the prevalence and risk factors of under-immunisation in hospitalised preschool children in Universiti Sains Malaysia Hospital (HUSM). Children aged 1 month to 2 years admitted between December 1998 and December 2000 in medical paediatric wards at HUSM were studied. Parents/guardians were interviewed during admission regarding immunisation status and potential risk factors. Children who did not have home-based cards during admission were excluded. Among 401 children, 37.9% had complete immunisation, 43.4% had delayed immunisation and 34.9% had incomplete immunisation. The uptake of BCG, DPT/OPV 1, DPT/OPV2, Hepatitis B3, DPT/OPV3, and measles were 98.5%, 90.7%, 83.2%, 81.4%,79.2% and 72.9% respectively. Vaccines scheduled to be given at later ages were significantly less likely to be taken (p=0.002) compared with vaccines scheduled to be given at an earlier age. Significant independent risk factors for under-immunisation were elderly mothers (3 40 years old) (OR 3.0, 95% CI: 1.2-8.0), low birth weight £2.0 kg (OR 6.2; 95% CI: 1.8-21.4) and presence of chronic illness in the child (OR 4.5; 95% CI: 2.5-7.9). In children whose father's education was low (primary school or no education), low maternal education was significantly associated with lower rate of under-immunisation (p = 0.005, OR 0.11 95%CI 0.02-0.51).
In conclusion this study showed that a large proportion of hospitalised preschool children were under-immunised, and vaccines scheduled to be given at a later age had lower uptakes. The situation can be rectified if every opportunity is taken to immunise all children, who have lapsed in their immunisation schedule.
The aim of this paper was to study hand washing practices in the Neonatal Intensive Care Unit (NICU), Hospital Universiti Sains Malaysia. All medical personnel handling babies in the NICU were observed without their knowledge for a total of three times before and after an educational intervention between November 1, 1993 and December 31, 1993. Hand washing techniques with both Hibisol Spray and Chlorhexidine were scored from 1-4. The results of the study are shown as follows: the number of personnel observed were: before educational intervention -paediatric doctors (PD) 14, non-paediatric doctors (ND) 13 and nurses (N) 48; after educational intervention - PD 10 , ND 12 and N 42. PD and N washed hands significantly more often than ND (p < 0.001), before and after intervention. PD but not ND or N improved their rate of hand washing after educational intervention PD (p= 0.02). The Hibisol handwashing technique was poor in all groups (77.1% of all observations). The Chlorhexidine hand washing technique was better than Hibisol (p<0.0001). However only 15% of observed washes with Chlorhexidine were well done and almost one third were done poorly. Both Hibisol and Chlorhexidine techniques did not improve after educational intervention. Hand washing was performed more often in the Level III than Level II nursery [85% of all observations in Level III and 73% of all observations in Level II, p=0.002]. In conclusion, the present educational program is not sufficient and more direct means should be taken to improve the frequency of hand washing among all medical personnel. All medical personnel in the NICU should be educated in the use of the Hibisol, otherwise Hibisol should be removed from the nursery.
Keywords: Handwashing, doctors, neonatal intensive care unit, nurses
Study site: Hospital Universiti Sains Malaysia, Kelantan, Malaysia
Meconium aspiration syndrome (MAS) frequently occurs in neonates born in thick meconium-stained liquor (TMSL). It continues to be a significant cause of neonatal morbidity and mortality despite aggressive approaches to intervention. This study aims to identify the perinatal characteristics of deliveries with TMSL associated with the development of MAS and to describe the outcome of those babies who developed MAS.
All newborns with TMSL born in Hospital Alor Setar, Kedah from 1 October 1998 to 30 April 1999 were prospectively studied. In the hospital, all newborns with TMSL were routinely admitted to the Special Care Nursery for observation. Relevant data regarding pregnancy, delivery, resuscitation and outcome of newborns with and without MAS were collected and analysed. The incidence of TMSL among hospital deliveries was 2.2% (95% C.I. 1.8-2.5%). Thirty-six percent (95% C.I. 28.4-44.7%) of newborns with TMSL developed MAS. Significant risk factors associated with the development of MAS were non-Malay mothers (p=0.04, OR=3.32), resuscitation by paediatric medical officers (p=0.02, OR=2.84) and direct tracheal suction during resuscitation (p=0.02, OR=2.61). The presence of non-Malay mothers or resuscitation by paediatric medical officers or direct tracheal suction during resuscitation gave a sensitivity of 88.2%, specificity of 36.7%, a positive predictive value of 44.1% and a negative predictive value of 84.6% for the development of MAS. Asphyxia, pneumothorax and persistent pulmonary hyper-tension occurred in 25.5%, 7.8% and 5.9% of the babies with MAS respectively. Mechanical ventilation was required in 51% and the mortality rate was 3.9%. In conclusion, the incidence of TMSL and MAS and the mortality rate of neonates with MAS were comparable with that in developed countries. The presence of any one of the significant risk factors had high sensitivity but low specificity for the development of MAS. Newborns were unlikely to develop MAS if all these risk factors were absent.
A case control study was conducted to identify the risk factors for acute lower respiratory tract infections (ALRI) in hospitalised children in Kelantan. One hun-dred and twenty children aged one month to five years hospitalised for ALRI were matched by age with 120 children as controls. Data on demography and expo-sure to putative risk factors were collected by interview-ing parents or caretakers. Anthropometric measure-ments were also carried out to assess the nutritional sta-tus of the children. For each risk factor studied, the odds ratios for exposure and disease were calculated by using univariate analysis followed by multiple logistic regression analysis to determine those factors which remained significant.
The presence of sibling(s) who coughed at home (OR 12.1, 95% CI 5.2-28.1), crowding in bedroom (OR 4.4, 95% CI 2.1-9.0), weight-for-age < 3rd percentile (OR 9.0, 95% CI 3.1-25.8), lack of breast feeding (OR 9.4, 95% CI 2.3-38.4) and incomplete immunisation (OR 4.5, 95% CI 1.7-12.1) were significant indepen-dent risk factors for ALRI. Other factors like poverty, maternal education level, male sex, low birth weight, history of atopy, family history of asthma and indoor air pollution were not associated with an increased risk of ALRI.
This study showed that poor nutritional status, inap-propriate child care practices and poor living conditions, particularly those related to crowding, predispose to ALRI in Kelantanese children necessitating hospital admission. A change in these factors may reduce the morbidity and mortality of childhood ALRI in Kelantan.
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.