1.Computed Tomography Perfusion Imaging on Traumatic Cerebral Contusion: A Preliminary Report
Ahmad Helmy Abdul Karim ; Win Mar @ Salmah Jalaluddin ; Ab Rahman Izaini Ghani
Malaysian Journal of Medical Sciences 2010;17(4):51-56
Background: Brain ischaemia and infarction are the leading factors in morbidity and
mortality of traumatic brain injury. This study aimed to determine the perfusion status of
pericontusional hypodense areas in traumatic cerebral contusion
Methods: Ten patients involved in motor vehicle accidents were enrolled in this study,
and contusions were diagnosed from plain computed tomography scans of the brain. Subsequent
computed tomography perfusion (CTP) was performed to analyse the perfusion of pericontusional
hypodense areas, which were divided into 4 regions of interest (ROI).
Results: Most ischaemic perfusion was found in ROI 6 (affecting 60% of patients), although
the mean of the perfusion parameters were normal. A significant positive correlation was found
between the perfusion status in the pericontusional area nearest to the skull vault (ROI 3) and its
distance/thickness to the skull vault (r = 0.698, P = 0.025). Two adjacent pericontusional hypodense
areas (ROI 4 and ROI 5) showed a significant positive correlation with each other (r = 0.667, P =
0.035) in terms of perfusion status. The presence of a hypodense pericontusional area is suggestive
of oedema and perfusion disturbances.
Conclusion: CTP is a useful, fast, and appropriate method in evaluating perfusion of
pericontusional hypodensity area that may help the treating physician to provide an appropriate
treatment to the patient.
2.Functional outcome at 6 months in surgical treatment of spontaneous supratentorial intracerebral haemorrhage
Abdul Rahman Izaini Ghani ; John Tharakan Kalappurakkal John ; Zamzuri Idris ; Mazira Mohamad Ghazali ; Nur-Leem Murshid ; Kamarul Imran Musa
Malaysian Journal of Medical Sciences 2008;15(4):48-55
A prospective cohort study was done to evaluate the role of surgery in patients with spontaneous supratentorial intracerebral haemorrhage (SICH) and to identify
predictors of outcome including the use of invasive regional cortical cerebral blood flow (rCoBF) and microdialysis. Surgery consisted of craniotomy or decompressive craniectomy. The ventriculostomy for intracranial pressure (ICP) monitoring and
drainage and regional cortical cerebral blood flow (rCoBF) and microdialysis were performed in all subjects. Pre and post operative information on subjects were
collected. The study end points was functional outcome at 6 months based on a dichotomised Glasgow Outcome Scale (GOS).The selected clinical, radiological,
biochemical and treatment factors that may influence the functional outcome were analysed for their significance. A total of 36 patients were recruited with 27(75%)
patients had Glasgow Coma Score (GCS) between 5 to 8 on admission and 9(25%) were admitted with GCS of 9. At 6 months, 86 % had a poor or unfavourable
outcome (GOS I-III) and 14% had good or favourable outcome (GOS IV-V). The mortality rate at 6 months was 55%. Univariate analysis for the functional outcome
identified 2 significant variables, the midline shift (p=0.013) and mean lactate:pyruvate ratio (p=0.038). Multivariate analysis identified midline shift as
the single significant independent predictor of functional outcome (p=0.013).Despite aggressive regional cortical cerebral blood flow (rCoBF) and microdialysis study
for detection of early ischemia, surgical treatment for spontaneous intracerebral haemorrhage only benefited a small number of patients in terms of favourable
outcome (14%) and in the majority of patients (86%), the outcome was unfavourable. Patients with midline shift > 5mm has almost 21 times higher chances
(adj) OR 20.8 of being associated with poor outcome (GOS I-III).
3.Deep Brain Stimulation (DBS) for Movement Disorders: An Experience in Hospital Universiti Sains Malaysia (HUSM) Involving 12 Patients
Lim Liang Hooi ; Diana Noma Fitzrol ; Senthil Kumar Rajapathy ; Tan Yew Chin ; Sanihah Abdul Halim ; Regunath Kandasamy ; BadrisyahIdris ; Abdul Rahman Izaini Ghani ; Zamzuri Idris ; John Tharakan
Malaysian Journal of Medical Sciences 2017;24(2):87-93
Deep brain stimulation (DBS) was first introduced in 1987 to the developed world. As a
developing country Malaysia begun its movement disorder program by doing ablation therapy
using the Radionics system. Hospital Universiti Sains Malaysia a rural based teaching hospital had
to take into consideration both health economics and outcomes in the area that it was providing
neurosurgical care for when it initiated its Deep Brain Stimulation program. Most of the patients
were from the low to medium social economic groups and could not afford payment for a DBS
implant. We concentrated our DBS services to Parkinson's disease, Tourette's Syndrome and
dystonia patients who had exhausted medical therapy. The case series of these patients and their
follow-up are presented in this brief communication.
4.Awake Craniotomy: A Case Series of Anaesthetic Management using a Combination of Scalp Block, Dexmedetomidine and Remifentanil in Hospital Universiti Sains Malaysia
W Mohd Nazaruddin W Hassan ; Mohd Fahmi Lukman ; Laila Abd Mukmin ; Zamzuri Idris ; Abdul Rahman Izaini Ghani ; Rhendra Hardy Mohamad Zaini
The Medical Journal of Malaysia 2013;68(1):64-66
Awake craniotomy is a brain surgery in patients who are
kept awake when it is indicated for certain intracranial
pathologies. The anaesthetic management strategy is very
important to achieve the goals of the surgery. We describe a series of our first four cases performed under a combination of scalp block and conscious sedation. Scalp block was performed using a mixture of ropivacaine 0.75% and adrenaline 5 μg/ ml administered to the nerves that
innervate the scalp. Conscious sedation was achieved with
a combination of two recently available drugs in our country, dexmedetomidine (selective α 2-agonist) and remifentanil (ultra-short acting opioid). Remifentanil was delivered in a target controlled infusion (TCI) mode.
5.The use of magnetic resonance phase-contrast cine in Chiari malformation with syringomyelia
Goh Chin Hwee ; Mohammad Radzi Hamzah ; Regunath Kandasamy ; Abdul Rahman Izaini Ghani ; Wong Sii Hieng ; Zamzuri Idris ; Jafri Malin Abdullah
The Medical Journal of Malaysia 2020;75(6):666-671
mesodermal origin and is commonly associated withsyringomyelia. Foramen magnum decompression is thefirst-line of standard treatment in symptomatic patients witha confirmed radiographic diagnosis. Magnetic resonance(MR) cine allows accurate evaluation of cerebrospinal fluid(CSF) physiology at the craniovertebral junction but oftenthis is under-utilised in Malaysia. Methods: In this series, we looked into nine cases of CM withsyringomyelia from clinical and radiological perspectivebefore and after surgery. The radiological parameters wereherniated tonsillar length, syrinx: cord ratio, syrinx lengthand diameter. Flow velocity and morphologic changes inChiari were illustrated. Results: Seven patients showed either reduction in syrinxlength, syrinx: cord ratio or both postoperatively. Clinicalrecovery somewhat varied in motor and sensory symptoms.Four patients gained better functional grade in modifiedRankin scale (MRS) while the rest remained similar. Thestudy highlighted the advantage of CSF flow dynamicsinformation over MR anatomical radiographic improvementin addressing the neurologic and functional recovery. Wealso discussed the practicality of cine sequence inpreoperative patient selection, syrinx analysis andpostoperative flow evaluation in anticipation of clinicaloutcome. Conclusion: Phase-contrast cine MRI is a useful tooldictated by resource availability. We recommend its routineuse in preoperative analysis and subsequent observationalfollow-up after surgery.
6.Endocrinological Outcome of Endoscopic Transsphenoidal Surgery for Functioning and Non-Functioning Pituitary Adenoma
Lee Shwu Yi ; Azmi Alias ; Abdul Rahman Izaini Ghani ; Mohammad Badrulnizam Long Bidin
Malaysian Journal of Medical Sciences 2019;26(3):64-71
Introduction: The present study analysed the (i) remission and preservation of hormones,
(ii) endocrinological and anatomical complications and (iii) visual improvement after endoscopic
transsphenoidal surgery (ETS).
Methods: The retrospective observational study of all consecutive cases of pituitary
adenoma treated with ETS in Hospital Kuala Lumpur (HKL) between 2006 and 2015. Age, sex, preand
post-operative hormone level, tumour size, and complications were noted.
Results: A total of 67 patients were diagnosed with non-functioning pituitary adenoma
throughout this period. Of these, 11 patients had both visual and hormonal improvement postoperation.
Of the 27 patients with tumour invaded into the cavernous sinus, 13 showed an
improved vision. In the adenoma patients who had impaired hormonal function before the
surgery, the hormone level normalised post-surgery in 42 patients.
Moreover, 39 patients were diagnosed with functioning pituitary adenoma. Ten patients
recovered from acromegaly and four patients recovered from Cushing disease within seven days
post-operative. Also, five patients with functioning adenoma suffered complications.
Conclusion: Outcome for the preservation and hormone recovery in non-functioning
pituitary adenoma group was satisfactory, with only one patient’s hormonal level worsening.
No visual deterioration and mortality were detected throughout this study. A dedicated team
specialised in endoscopic transsphenoidal pituitary surgery further improved the outcome of this
surgical method.
7.Cerebral venous sinus thrombosis: review of cases in a single centre in Malaysia
Sim Sze Kiat ; Tan Yew Chin ; Abdul Rahman Izaini Ghani
The Medical Journal of Malaysia 2020;75(1):38-42
Introduction: Cerebral venous sinus thrombosis (CVST) is a
potentially fatal neurological condition. However, due to the
non-specific clinical and radiological features of CVST, it can
sometimes result in a delay in the diagnosis and subsequent
management. The aim of this study was to evaluate the
demography, risk factors and one-year outcome of CVST
patients treated in Hospital Universiti Sains Malaysia.
Methods: In this retrospective study, we reviewed the cases
diagnosed with CVST admitted to our centre from January
2011 until November 2015.
Results: A total of 15 patients were included in this review.
The patterns of imaging findings as well as risk factors for
CVST is discussed with a review of the literature and current
management practices. One year followed-up showed full
recovery (Glasgow Outcome Scale (GOS) of 5) in 10 cases
(66.7%), whereas 4 cases (26.7%) with GOS of 4 (three cases
with neurological deficits, and 1 case with mild symptom.
There was one case of mortality in this study secondary to
sepsis during hospitalisation. The presenting symptoms
were mainly headache, focal neurology deficits, seizure and
altered sensorium. Risk factors identified were oral
contraceptive pills usage, chronic sinuses or ear infections,
and obesity. Initial computed tomography (CT) scan showed
various findings and haemorrhagic infarct was one of the
common findings. Magnetic resonance imaging (MRI) and
magnetic resonance venography (MRV) revealed majority of
the patients had occlusion at two or more venous sinus
sites. No patients had new or recurrent intracranial
haemorrhage following initiation of anticoagulation therapy.
Conclusion: Thus it is considerable safe to start
anticoagulation therapy in CVST patients including those
with intracranial haemorrhage. We propose further
neuroimaging to avoid missed diagnosis of CVST in patient
presented with recent onset headache and CT evidence of
unusual cerebral infarction.