1.Variants of LYST and Novel STK4 Gene Mutation in a Child With Accelerated Chediak Higashi Syndrome
Asrar Abu BAKAR ; Haema SHUNMUGARAJOO ; Jeyaseelan P. NACHIAPPAN ; Intan Hakimah ISMAIL
Pediatric Infection & Vaccine 2024;31(1):122-129
Chediak-Higashi syndrome (CHS) is a rare haematological and immunodeficiency disorder that occurs in childhood leading to recurrent infections, bleeding tendencies and progressive neurological dysfunction. Partial oculocutaneous albinism occurs in almost all cases. The exact prevalence is unknown, and the disease is caused by over 70 identified mutations in the lysosomal trafficking regulator gene. The presence of a bright polychromatic appearance from hair shaft and abnormally large intracytoplasmic granules, especially within neutrophils and platelets in the bone marrow is highly suggestive. Treatment is largely supportive, and the only curative treatment is through an allogeneic hematopoietic stem cell transplant.Without transplant, most patients will enter an accelerated phase of hemophagocytic lymphohistiocytosis (HLH) which carries a high mortality rate. We present a young male with CHS who we had followed through and eventually developed a fulminant accelerated phase.We believe this is only the second reported case of CHS in Malaysia.
2.Variants of LYST and Novel STK4 Gene Mutation in a Child With Accelerated Chediak Higashi Syndrome
Asrar Abu BAKAR ; Haema SHUNMUGARAJOO ; Jeyaseelan P. NACHIAPPAN ; Intan Hakimah ISMAIL
Pediatric Infection & Vaccine 2024;31(1):122-129
Chediak-Higashi syndrome (CHS) is a rare haematological and immunodeficiency disorder that occurs in childhood leading to recurrent infections, bleeding tendencies and progressive neurological dysfunction. Partial oculocutaneous albinism occurs in almost all cases. The exact prevalence is unknown, and the disease is caused by over 70 identified mutations in the lysosomal trafficking regulator gene. The presence of a bright polychromatic appearance from hair shaft and abnormally large intracytoplasmic granules, especially within neutrophils and platelets in the bone marrow is highly suggestive. Treatment is largely supportive, and the only curative treatment is through an allogeneic hematopoietic stem cell transplant.Without transplant, most patients will enter an accelerated phase of hemophagocytic lymphohistiocytosis (HLH) which carries a high mortality rate. We present a young male with CHS who we had followed through and eventually developed a fulminant accelerated phase.We believe this is only the second reported case of CHS in Malaysia.
3.Variants of LYST and Novel STK4 Gene Mutation in a Child With Accelerated Chediak Higashi Syndrome
Asrar Abu BAKAR ; Haema SHUNMUGARAJOO ; Jeyaseelan P. NACHIAPPAN ; Intan Hakimah ISMAIL
Pediatric Infection & Vaccine 2024;31(1):122-129
Chediak-Higashi syndrome (CHS) is a rare haematological and immunodeficiency disorder that occurs in childhood leading to recurrent infections, bleeding tendencies and progressive neurological dysfunction. Partial oculocutaneous albinism occurs in almost all cases. The exact prevalence is unknown, and the disease is caused by over 70 identified mutations in the lysosomal trafficking regulator gene. The presence of a bright polychromatic appearance from hair shaft and abnormally large intracytoplasmic granules, especially within neutrophils and platelets in the bone marrow is highly suggestive. Treatment is largely supportive, and the only curative treatment is through an allogeneic hematopoietic stem cell transplant.Without transplant, most patients will enter an accelerated phase of hemophagocytic lymphohistiocytosis (HLH) which carries a high mortality rate. We present a young male with CHS who we had followed through and eventually developed a fulminant accelerated phase.We believe this is only the second reported case of CHS in Malaysia.
4.Paediatric invasive pneumococcal disease from two tertiary hospitals in Malaysia
Sithra Rengasamy ; Jeyaseelan Nachiappan ; Rohaizah binti Borhan ; Norlijah Othman
The Medical Journal of Malaysia 2020;75(1):57-61
Introduction: Invasive pneumococcal disease (IPD) a leading
cause of death and morbidity in children below five-yearsold. This study aims to compare the varied presentation and
clinical course of IPD in two different tertiary hospitals in
Malaysia.
Methodology: A retrospective study of all positive
Streptococcus pneumoniae isolates consistent with
invasive disease from children below 14 years of age
hospitalised in two tertiary hospitals; between year 2012 and
2016 was conducted. IPD cases were defined as isolates of
S. pneumoniae from a normally sterile body fluid site.
Results: Fifty-four patients were identified in both centres,
35 (65%) from HRPB as compared to 19 (35%) from HS.
Majority of cases (14/35, 40 %) in HRPB were of Orang Asli
in comparison to Malay children (16/19, 84%) in HS.
Septicaemia, pneumonia and meningitis were the most
common clinical presentation of IPD in both centres. There
was a noticeably higher percentage of isolates found to be
non-susceptible (NS) in HS (62.5%) as compared to HRPB
(37.5%) although of no statistical significance. Mortality rate
was higher in HRPB (26%) in comparison to 11% in HS.
Conclusion: This study highlighted the varied presentation
of IPD in two different hospital settings. Although both
deemed as urban centres, this study emphasises the
importance of understanding socio-demography, health
facility availability and primary care practices as it
significantly alters the clinical course of a disease.