Volume 24 Number 5 October 2018 SUPPLEMENT 5 EDITOR-IN-CHIEF Martin CS Wong 黃至生 24th Annual Scientific Meeting of The SENIOR EDITORS Hong Kong Neurosurgical Society LW Chu 朱亮榮 6 Albert KK Chui 徐家強 Council of The Hong Kong Neurosurgical Society and Michael G Irwin Organising Committee Eric CH Lai 賴俊雄 KY Leung 梁國賢 Guest Faculties 7 Andrea OY Luk 陸安欣 Anthony CF Ng 吳志輝 Scientific Programme 8 TW Wong 黃大偉 SESSION ABSTRACT PAGE EDITORS Gavin J Chan 陳慶釗 FREE PAPER PRESENTATIONS KS Chan 陳健生 David VK Chao 周偉強 Microvascular Decompression for Hemifacial Spasm: Value FP 1.1 10 W Cheuk 卓 華 of Lateral Spread Response TW Chiu 趙多和 Remy SL Hung Paul CL Choi 蔡祥龍 James TK Fung 馮德焜 Can Electromyography Monitoring Replace Clinical FP 1.2 10 Brian SH Ho 何思灝 Assessment for Capsular Side-effect in Subthalamic Ellis KL Hon 韓錦倫 KW Huang 黃凱文 Nucleus Deep Brain Stimulation Operation? A Correlation WK Hung 熊維嘉 Study between Electromyography and Clinical Response Bonnie CH Kwan 關清霞 Jason MK Ho Paul BS Lai 賴寶山 CY Lam 林楚賢 Sodium Valproate-induced Hyperammonaemia: a FP 1.3 11 Arthur CW Lau 劉俊穎 Prospective Cohort Study Keith KH Lau 劉廣洪 Eric YH Cheung PY Lau 婁培友 Danny WH Lee 李偉雄 Geriatric Neurosurgery: Analysis of a Single Tertiary FP 1.4 12 Thomas WH Leung 梁慧康 WK Leung 梁惠強 Centre Kenneth KW Li 李啟煌 SK Chan David TL Liu 劉大立 Janice YC Lo 羅懿之 Effect of Cranioplasty on Neurocognitive Function and FP 2.1 12 Herbert HF Loong 龍浩鋒 Cerebral Perfusion James KH Luk 陸嘉熙 CF Ng Arthur DP Mak 麥敦平 Henry KF Mak 麥嘉豐 Flow Diversion with Pipeline Embolisation Device for FP 2.2 13 Jacobus KF Ng 吳國夫 Intracranial Aneurysms—Our 9-Year Single-centre Martin W Pak 白 威 William YM Tang 鄧旭明 Experience KY Tse 謝嘉瑜 Jane CY Lau Harry HX Wang 王皓翔 Kenneth KY Wong 黃格元 Age and Outcome Following Non-traumatic FP 2.3 13 Patrick CY Woo 胡釗逸 Intraventricular Haemorrhage: Do Elderly Patients Fare Bryan PY Yan 甄秉言 Worse? TK Yau 游子覺 Kevan J Sham Kelvin KH Yiu 姚啟恒 EPIDEMIOLOGY ADVISORS Aneurysmal Subarachnoid Haemorrhage in Elderly FP 2.4 14 Daniel SY Ho 何世賢 Patients: a Retrospective Review Edmond SK Ma 馬紹強 Natalie MW Ko Gary Tse 謝家偉 Shelly LA Tse 謝立亞 Is There Any Difference in Cerebrovascular Reserve on FP 3.1 14 Ian YH Wong 王逸軒 Computed Tomography Perfusion in Patients with Esther YT Yu 余懿德 Hunter KL Yuen 袁國禮 Moyamoya Disease and Atherosclerotic Disease? CW Tang STATISTIcaL ADVISORS Marc KC Chong 莊家俊 William B Goggins Eddy KF Lam 林國輝 Carlos KH Wong 黃競浩 Hong Kong Med J ⎥ Volume 24 Number 5 (Supplement 5) ⎥ October 2018 ⎥ www.hkmj.org 1 SESSION ABSTRACT PAGE Single-centre Review of Management and Outcomes of FP 3.2 15 Ruptured Dissecting Vertebral Artery Aneurysms Joanna WK Ho Application of Point-of-care Platelet Function Assay in FP 3.3 15 Guiding Platelet Transfusion in Aspirin Users with Intracranial Haemorrhages Denise KY Cheng Territory-wide Primary Decompressive Craniectomy FP 3.4 16 Outcomes for Ischaemic Stroke Patients in the Hospital Authority Sarah SN Lau Trans-sphenoidal Endoscopic Surgery for Skull Base FP4.1 16 Tumours with Nasoseptal Flap Ronald Li Change of Olfactory Function after Endoscopic Trans- FP 4.2 17 sphenoidal Surgery for Pituitary Tumours: a Cohort Study KT Yeung Elderly Patients with Glioblastoma—A 7-Year Single-centre FP 4.3 17 Retrospective Review NL Chan Long-term Outcome of Patients Undergoing Combined FP 4.4 18 Transcranial and Trans-sphenoidal Resection of Giant Pituitary Adenomas—A Retrospective Study Iris HT Chung Elderly Patients with Traumatic Brain Injury—A 2-Year FP 5.1 19 Cohort Study YZ He Use of Tranexamic Acid for Traumatic Brain Injury with FP 5.2 19 Contusions or Traumatic Subarachnoid Haemorrhage in Elderly Patients David YC Chan Outcomes and Complications of Surgery for Sporadic FP 5.3 20 Vestibular Schwannoma in the New Territories West Cluster: a Retrospective Review Z He Case Series of Frameless Stereotaxic Radiosurgery and FP 6.1 21 Radiosurgery for Patients Aged ≥80 Years in a Regional Hospital CH Yu Descriptive Study on Radiosurgery-treated Arteriovenous FP 6.2 21 Malformation in Tuen Mun Hospital from 1998 to 2016 Ben KL Luk Postoperative Stereotactic Radiotherapy/Radiosurgery and FP 6.3 22 Whole Brain Radiotherapy for Metastatic Brain Tumours James TF Zhuang Mesenchymal Stem Cell Secretome Benefits Functional FP 6.4 22 Recovery in Experimental Traumatic Brain Injury Model MA Hui 2 Hong Kong Med J ⎥ Volume 24 Number 5 (Supplement 5) ⎥ October 2018 ⎥ www.hkmj.org Hong Kong Med J ⎥ Volume 24 Number 5 (Supplement 5) ⎥ October 2018 ⎥ www.hkmj.org INTERNATIONAL EDITORIAL SESSION ABSTRACT PAGE ADVISORY BOARD Vitamin D3 Promotes Motor Functional Recovery after FP 7.1 23 Sabaratnam Arulkumaran Experimental Spinal Cord Injuries United Kingdom N Li Robert Atkins Australia Functional Roles of Cytoskeleton Protein Adducin 3 in FP 7.2 23 Glioblastoma Multiforme Peter Cameron MY Kiang Australia Daniel KY Chan Outcomes of Intracranial Tumour Operations in Elderly FP 7.3 24 Australia Patients David Christiani WN Ho United States Age Increases Poor Outcomes after Traumatic Brain Injury: FP 7.4 25 Andrew Coats a Review of Head Injury in Patients Aged ≥80 Years Australia Sarah SN Lau James Dickinson Canada Treatment Outcome of Acute Subdural Haematoma for FP 7.5 25 Willard Fee, Jr Elderly Patients in Hong Kong: a Territory-wide Multi- United States centre Cohort Study Hong Kong Neurosurgical Society Research Subcommittee Robert Hoffman United States POSTER PRESENTATIONS Sean Hughes United Kingdom Electrical Visual Evoked Potentials for Intra-operative P 1.1 26 Monitoring of Visual Function Roger Jones Andrea JT Lee United Kingdom Michael Kidd Post-carotid Artery Stenting Restenosis for Radiation- P 1.2 26 Australia related Carotid Stenosis Arthur Kleinman Arren Chan United States Antiplatelet and Antithrombotic Use Affects Chronic P 1.3 27 Stephen Leeder Subdural Haematoma Recurrence after Burr Hole Drainage Australia in Patients Aged >80 Years Old Xiaoping Luo Benedict YY Cheung China 28 William Rawlinson Pituicytoma—A Rare and Tough Challenge in Trans- P 1.4 Australia sphenoidal Surgery Michael KW See Jonathan Samet United States A Case of Cerebral Venous Thrombosis Associated with P 1.5 29 David Weller Thyrotoxicosis United Kingdom Jacquelyn CY Fok Max Wintermark 30 United States Glioblastoma with Diffuse Leptomeningeal Spread and P 1.6 BRAF Mutation Treated with BRAF Inhibitor Therapy as Atsuyuki Yamataka First-line Treatment Japan WN Ho Homer Yang Canada Recurrence Rate Following Subarachnoid Haemorrhage: P 1.7 31 KG Yeoh Determinants of Risk Factors Singapore Wataru Kumamoto Matthew Yung Four Seasons for Neurosurgeons: Seasonal Variation of P 1.8 31 United Kingdom Stroke Requiring Neurosurgical Emergency Operation Henry Pang MANAGING EDITOR IOX, an Analogue of Genistein, Increases the Cytotoxicity P 1.9 32 Alan Purvis of Temozolomide in Glioblastoma Cells P Zhang DEPUTY MANAGING EDITOR Betty Lau 劉薇薇 Is Intra-uterine Contraceptive Device a Cause of Brain P 1.10 32 Abscess? A Case Report of Brain Abscess Presenting with ASSISTANT MANAGING EDITOR Seizure Warren Chan 陳俊華 CW Cheng Hong Kong Med J ⎥ Volume 24 Number 5 (Supplement 5) ⎥ October 2018 ⎥ www.hkmj.org Hong Kong Med J ⎥ Volume 24 Number 5 (Supplement 5) ⎥ October 2018 ⎥ www.hkmj.org 3 SESSION ABSTRACT PAGE Long-term Neurovascular Outcome after Carotid Stenting: P 1.11 33 a Single-centre Experience in Hong Kong Jennie SY Yeung Establishment and Outcome of Endoscopic Trans- P 1.12 33 sphenoidal Surgery for Sellar Lesions at the University of Hong Kong–Shenzhen Hospital X Ye Can Deep Brain Stimulation Help Advanced Parkinson’s P 1.13 34 Patients with Dopamine Dysregulation Syndrome? Adam ZW Yang Temporal Pattern of Neurological Deficits after P 1.14 34 Subarachnoid Haemorrhage in Mice Vera Z Zheng Assessing Risk of Stroke and Complications of Stenting P 2.1 35 in Vertebral Artery Stenosis Patients in Hong Kong: a Retrospective Study Andrew MK Li Intra-thrombus Thrombolysis with Urokinase—A P 2.2 35 Potential Method for Treatment of Cerebral Venous Sinus Thrombosis Rosemarie HY Chiu Valsalva Manoeuvre and Risk of Intracranial Haemorrhage P 2.3 36 KH Chui Retrospective Review of Factors Affecting the Outcomes of P 2.4 36 Intracerebral Haemorrhage YC Cheung Enriched Environment Enhances Motor and Sensory P 2.5 37 Function Outcomes in Rat Intracerebral Haemorrhage Model H Lyu Differential Gene Expression Profiles and Functional P 2.6 37 Properties Associated with Cathepsin D in Glioblastoma Z Zhu Neurological Manifestations of Atrial Myxoma—Metastatic P 2.7 38 Cavernomas, Intracranial Aneurysms, and Central Retinal Artery Occlusion Melanie Hau Intraventricular Urokinase to Re-establish External P 2.8 38 Ventricular Drain and Ventriculoperitoneal Shunt Patency in a Patient with Glioblastoma Leptomeningeal Spread Remy SL Hung Shall We Use 3-cc, 5-cc, or 10-cc Syringes for Brain Lesion P 2.9 39 Biopsy? Terry PL Tsoi Retrospective Study on Neurodevelopment Outcome of P 2.10 39 Neonatal Intraventricular Haemorrhage WL Cheung Lateral Ventricular Haemangioblastoma: a Case Report P 2.11 40 CY Chan 4 Hong Kong Med J ⎥ Volume 24 Number 5 (Supplement 5) ⎥ October 2018 ⎥ www.hkmj.org Hong Kong Med J ⎥ Volume 24 Number 5 (Supplement 5) ⎥ October 2018 ⎥ www.hkmj.org SESSION ABSTRACT PAGE A Case of Giant Mesencephalic Tumefactive Perivascular P 2.12 40 Spaces Presenting with Obstructive Hydrocephalus Eric YH Cheung Endovascular Treatment of Vertebro-vertebral Fistula P 2.13 41 PT Yuen Excision of Meningiomas in Older Patients P 2.14 41 James K Fung NURSING SESSION Oral Hygiene for Neurosurgical Patients N 1 42 Miranda MY Cheung