1.Fluorescence-Guided versus Conventional Surgical Resection of High Grade Glioma: A Single-Centre, 7-Year, Comparative Effectiveness Study
Wei Ping Ng ; Boon Seng Liew ; Azmin Kass Rosman
Malaysian Journal of Medical Sciences 2017;24(2):78-86
Background: High grade gliomas (HGGs) are locally invasive brain tumours that carry a
dismal prognosis. Although complete resection increases median survival, the difficulty in reliably
demonstrating the tumour border intraoperatively is a norm. The Department of Neurosurgery,
Hospital Sungai Buloh is the first public hospital in Malaysia to overcome this problem by
adopting fluorescence-guided (FG) surgery using 5-aminolevulinic acid (5-ALA).
Methods: A total of 74 patients with histologically proven HGGs treated between January
2008 and December 2014, who fulfilled the inclusion criteria, were enrolled. Kaplan-Meier
survival estimates and Cox proportional hazard regression were used.
Results: Significant longer survival time (months) was observed in the FG group
compared with the conventional group (12 months versus 8 months, P < 0.020). Even without
adjuvant therapy, HGG patients from FG group survived longer than those from the conventional
group (8 months versus 3 months, P = 0.006). No significant differences were seen in postoperative
Karnofsky performance scale (KPS) between the groups at 6 weeks and 6 months after
surgery compared to pre-operative KPS. Cox proportional hazard regression identified four
independent predictors of survival: KPS > 80 (P = 0.010), histology (P < 0.001), surgical method
(P < 0.001) and adjuvant therapy (P < 0.001).
Conclusion: This study showed a significant clinical benefit for HGG patients in terms
of overall survival using FG surgery as it did not result in worsening of post-operative function
outcome when compared with the conventional surgical method. We advocate a further multicentered,
randomised controlled trial to support these findings before FG surgery can be
implemented as a standard surgical adjunct in local practice for the benefit of HGG patients.
2.Characteristics and Outcomes of Patients with Anterior Circulation Intracranial Aneurysm Managed with Clipping in Hospital Sungai Buloh
Ailani Ab. Ghani ; Saiful Azli Mat Nayan ; Regunath Kandasamy ; Azmin Kass Rosman ; Abdul Rahman Izani Ghani
Malaysian Journal of Medical Sciences 2016;23(6):113-117
Introduction: The annual incidence of intracranial aneurysm in Malaysia is estimated
to be 1.1–1.7 per 100,000 population based on a study done conducted in 1988. Since then, little
epidemiological research has been conducted in Malaysia, and the real incidence is therefore
probably unreported despite advancements in the diagnosis and treatment of this disorder.
Intracranial aneurysm may be treated by microsurgical clipping or embolisation depending on its
location and the surgeon’s preference. This study aims to report the characteristics and outcomes
of patients with a clipped anterior circulation aneurysm in Hospital Sungai Buloh.
Methods: We retrospectively collected the data of patients with anterior circulation
aneurysms who underwent clipping from 1 January 2013 until 30 June 2014 in Hospital Sungai
Buloh.
Results: The mean age of the patients was 48.9 years old, and 56.7% of the study
population were male and 63.3% were Malay. There were almost equal numbers of patients with
(46.7%) and without (53.3%) co-morbidities such as hypertension and ischaemic heart disease.
Half of the study population fell under Fisher grade 3 (50.0%), whereas 46.7% were Fisher grade
4. With respect to the Navarro score, 20% of patients scored 10, 16.7% scored 5 or 7, 13.3% scored
11, 10% scored 9, 6.7% scored 1 and 3.3% scored 2, 3 or 8. Most of the patients fell under grade
I (33.3%) of the World Federation of Neurological Societies grading (WFNS), and the fewest
number of patients were grade III (3.3%). Most (56.7%) patients had an intracranial aneurysm
located at the anterior communicating artery (ACOM), followed by the anterior cerebral artery
(ACA) and the middle cerebral artery (MCA) (16.7% each), the posterior communicating artery
(PCOM) (6.7%) and, finally, the internal carotid artery (ICA) (3.3%). Neurological outcomes at
three and six months were assessed using the Modified Rankin Scale (mRS). At three months
follow-up, the majority of the participants (33.3%) scored 0 or 6, whereas at six months follow-up,
the majority scored 0 (43.3%).
Conclusion: The main characteristics of patients in Hospital Sungai Buloh were that they
were in their 40s and mostly Malays without any known comorbidities. Although the majority
of patients had high Fisher grades, their outcomes post intervention were promising. However,as data collected from Hospital Sungai Buloh may not be representative of the whole country, a
larger-scale data collection is necessary to create our own database and to identify the risks
factors that are exclusive to our country, if present.
3.Atypical Clival Chordoma in an Adolescent without Imaging Evidence of Bone Involvement
Hilwati Hashim ; Azmin Kass Rosman ; Aida Abdul Aziz ; Abdul Kadir Roqiah ; Nor Salmah Bakar
Malaysian Journal of Medical Sciences 2014;21(5):78-82
Clival chordoma is a rare primary bone tumour that arises from the remnant of the notochord and typically occurs in older adults. Upon imaging, the tumour can be seen arising from the clivus and causes clival destruction. This usually provides insight for a diagnosis. Here we present a case of a non-enhancing, pre-pontine mass that was hypointense on T1W and hyperintense on T2W in an adolescent. No clival bone erosion was observed. Based on the age group, imaging findings, and lack of clival erosion, a provisional diagnosis of epidermoid cyst was made and the tumour was resected. This patient was eventually diagnosed with a clival chordoma based on histopathological examination.