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Fulltext Balloon dilatation of laryngotracheal stenosis: Hospital Ampang experience

Loo, L.Y., Mawaddah, A., Shahrul, H., Khairullah, A.

International Medical Journal Malaysia, 2017;16(2):113-116.
MyJurnal

The upper airway is a crucial structure. It becomes a grave problem should it be narrowed. Several methods
of treatment were rendered for patients with laryngotracheal stenosis. We share our experience with the
combination total intravenous anaesthesia and apneic pause technique with or without steroid injection.
Four cases of laryngotracheal stenosis were observed in Hospital Ampang: two adult and two paediatric
cases. Age, gender, causative factor, stenosis segment length, grade or severity were observed before and
after dilatation, number of dilatation were observed and compared. The outcome measures are
decannulation and avoidance of tracheostomy. All cases had improvement of symptoms. Half or 50% of the
patient required repeated balloon dilatations. The paediatric cases successfully avoided tracheostomy while
the adult cases successfully decannulated with no complication from the procedure. Balloon dilatation by
total intravenous anaesthesia coupled with apneic method is a safe and effective method of treatment for
the narrowed airway.
Fulltext Kimura's disease in Malay patients

Shahrul H, Baharudin A, Effat O

Med J Malaysia, 2007 Aug;62(3):263-4.
PMID: 18246925 MyJurnal

Kimura's Disease (KD) is an uncommon, chronic inflammatory disorder of unknown etiology which is endemic in Orientals. It is characterized by painless, large solitary or multiple nodules in subcutis of head and neck region or the major salivary glands, associated with regional lymphadenopathy, blood eosinophilia and elevated IgE levels. Its treatment ranging from conservative observation in asymptomatic patient to surgical resection of the mass, corticotherapy and irradiation therapy for the symptomatic ones.
Outcome of tracheostomy among COVID-19 patients in a tertiary hospital setting: Our experience

Razak I, Hari K, Syakirah Z, Saiful M, Shahrul H

Med J Malaysia, 2023 Jan;78(1):35-38.
PMID: 36715189

INTRODUCTION: The COVID-19 pandemic is unprecedented. Amongst those who contracted COVID-19, a number required intubation and prolonged ventilation. This increased the number of ventilated patients in the hospital and increased the requirement for tracheostomy of severe COVID-19 patients. Our objective is to study the outcome of patients with COVID-19 who underwent tracheostomy.
MATERIALS AND METHODS: This study is a novel retrospective study in a tertiary centre in Malaysia. Case notes of COVID- 19 patients who underwent tracheostomy in Hospital Ampang were collected using the electronic Hospital Information System. Data were analysed using the SPSS system.
RESULTS: From a total of 30 patients, 15 patients survived. All patients underwent either open or percutaneous tracheostomy. The median age is 53 (range: 28-69) with a significant p-value of 0.02. Amongst comorbidities, it was noted that diabetes mellitus was significant with a p-value of 0.014. The median time from the onset of COVID-19 to tracheostomy is 30 days. The median duration of intensive care unit (ICU) stay is 30.5 days, with the median duration of hospital length of stay of 44 days (p = 0.009 and <0.001, respectively). No complications that contributed to patient death were found. Survivors had a median of 29.5 days from tracheostomy to oxygen liberation.
CONCLUSION: Tracheostomy in COVID-19 patients that requires prolonged ventilation is unavoidable. It is a safe procedure and mortality is not related to the procedure. Mortality is primarily associated with COVID-19.
Fulltext Lipoproteins modulate growth and P-glycoprotein expression in drug-resistant HER2-overexpressed breast cancer cells

Siti ZS, Seoparjoo AMI, Shahrul H

Heliyon, 2019 Apr;5(4):e01573.
PMID: 31183434 DOI: 10.1016/j.heliyon.2019.e01573

Background: Drug resistance remains as a challenge in the treatment of HER2-overexpressed breast cancer. Emerging evidence from clinical studies show relation of oxidized low density lipoprotein (LDL) and very low density lipoprotein (VLDL) level with drug resistance. However, the underlying molecular mechanisms for this effect remain unclear. Therefore, the aim of this study was to determine the effects of oxidized-LDL and VLDL in drug-resistant HER2-overexpressed breast cancer cells.
Methods: An in vitro cell model for tamoxifen-resistant HER2 overexpressed UACC732 cells was created using the pulse method. Cells were exposed to oxidized LDL (oxLDL) and very low density lipoprotein (VLDL) separately. Effects on cell morphology was studied using phase contrast microscopic changes. Percentage of cell viability was measured using proliferation assay kit. Development of tamoxifen resistance was determined based on P-gp expression with flow cytometry. Further analysis includedcell death measurement with flow cytometry method.
Results: UACC732 cells exposed to VLDL exhibited fibroblast-like morphology. This was further supported by proliferation assay, where the percentage of cell viability achieved more than 100% with 100 μg/ml of VLDL exposure, indicating cell proliferation. Findings also showed that VLDL caused reduction in expression of Pgp in resistant cells compared to resistant cells alone (p = 0.02).
Conclusion: Results of this study suggest that VLDL may play a role in growth of drug-resistant HER2-overexpressing cells. Lower expression of P-gp in presence of VLDL need to be investigated further.