The prevalence of Dysphagia among head and neck cancer patients in tertiary public hospitals in Malaysia

INTRODUCTION

Dysphagia is the most common problem among head and neck cancer patients. It can occur before, during, and/or after cancer treatment due to cancer growth or side effects from cancer treatment. To date, the data on the prevalence of dysphagia in Malaysia is very limited. Therefore, the present study aimed to examine the prevalence and contributing factors of dysphagia.

MATERIALS AND METHODS

A total of 240 patients (mean age 53.1, 167 males and 73 females) from Hospital Kuala Lumpur and the National Cancer Institute were enrolled in this research. All patients were interviewed individually in which they completed a thorough case history and swallowing screening test, including the water swallow test.

RESULTS

The results revealed that 43.3% of patients had dysphagia. In multivariate logistic regression, occupation of the patients was found to be associated with dysphagia, i.e., working in service and sales sector (adjusted Odds Ratio, aOR=0.36, 95% Confidence Interval, 95%CI: 0.13, 0.99). Compared to patients without treatment, those who had chemoradiotherapy (aOR=4.45; 95%CI: 1.10, 17.99) were at an increased odd of developing dysphagia.

DISCUSSION

This study showed that occupation, cancer stage, and type of treatment received by the head and neck cancer patients were crucial factors associated with the development of dysphagia. These findings guide the clinicians in identifying head and neck cancer patients who are at greater risks of developing dysphagia.

Tracheostomy during the COVID-19 pandemic in Malaysia; a revised guideline

Performing tracheostomy on COVID-19 patients poses a significant risk to the procedural team. Such procedures should be evaluated individually via close communication between the otorhinolaryngology-head and neck surgeon and the intensivist. Comprehensive examination and preparation should be well-planned before tracheostomy, optimal technique during tracheostomy and special care following the surgery. We would like to highlight our revised guidelines at Hospital Kuala Lumpur, Malaysia on the timing of tracheostomy, management of anticoagulant and the surgical planning in COVID-19 patients during these challenging times.

Congenital deafness: high prevalence of a V37I mutation in the GJB2 gene among deaf school children in Alor Setar

Twenty percent of all childhood deafness is due to mutations in the GJB2 gene (Connexin 26). The aim of our study was to determine the prevalence and spectrum of GJB2 mutations in childhood deafness in Malaysia. We analyzed the GJB2 gene in 51 deaf students from Sekolah Pendidikan Khas Alor Setar, Kedah. Bidirectional sequencing indicates that 25% of our childhood deafness has mutation in their GJB2 gene. Sixty two percent of these children demonstrate V37I missense mutation. Interestingly, V37I mutation in the GJB2 gene have been reported as polymorphism in Western countries, however in our country it behaved as a potentially disease-causing missense mutation, causing childhood deafness as it was not found in the normal control.