Dr. Michael LeeHong Kong
Neurosurgery, Pamela Youde Nethersole Eastern Hospital
| to present | Consultant Neurosurgeon |
| to present | Honorary Clinical Associate Professor, Department of Surgery, Chinese University of Hong Kong |
| to present | Adjunct Associate Professor, School of Chinese Medicine, Chinese University of Hong Kong |
| 1989 - 1994 | The University of Hong Kong |
| 2020 - 2024 | President of the Hong Kong Neurosurgical Society |
Brain mapping and intraoperative monitoring, awake craniotomy, tumours (including endoscopic skull base approach and radiosurgery), functional (movement disorders and pain disorders using radiofrequency lesioning and deep brain stimulation), and minimally invasive spine surgery
Dr Michael Lee
MBBS, FRCSEd, FCSHK, FRCSEd (SN), FHKAM (Surgery), DPD (Cardiff)
Brief CV 2024
Dr Michael Lee is the Consultant Neurosurgeon at Pamela Youde Nethersole Eastern Hospital in Hong Kong and the Honorary Clinical Associate Professor at the Chinese University of Hong Kong. He graduated from the Faculty of Medicine, the University of Hong Kong in 1994. He pursued his surgical and neurosurgical training in the Pamela Youde Nethersole Eastern Hospital and Prince of Wales Hospital and became a specialist in neurosurgery. He received overseas training in North America in the field of stereotactic and functional neurosurgery in 2002. His interests include brain mapping and intraoperative monitoring, awake craniotomy, tumours (including endoscopic skull base approach and radiosurgery), functional (movement disorders and pain disorders using radiofrequency lesioning and deep brain stimulation), and minimally invasive spine surgery. He is currently the Immediate Past President of the Hong Kong Neurosurgical Society, the Chairman of the Hong Kong Brain Foundation, as well as the Hong Kong Brain Bee Competition Coordinator.
Other posts:
Chairman of PYNEH Doctors’ Association (2012-2013)
Chairman of the Patient Focus Team, Cluster Clinical Audit Committee since 2013
Scientific Member of the Research Ethics Committee since 2013
Vice Chairman of the HKEC Medical Records Quality Assurance Subcommittee since 2014
Panel Specialist of HKEC Quality and Safety Committee
Examiner of the Neurosurgery Specialty Board Exam in Hong Kong
Councillor of the Hong Kong Movement Disorder Society
Councillor of the Hong Kong Neuro-Oncology Society since 2011
Trainer of Intern Orientation, Basic Surgical Trainee, Higher Surgical Trainee, and Crew Resource Management (CRM) simulation for HKEC medical and nursing staff.
Advanced Stroke Life Support (ASLS®) trainer and Hong Kong Training Centre Coordinator
Percutaneous CT-guided Cervical Cordotomy for Medically Intractable Cancer Pain
1110 11:20-11:30
Functional Neurosurgery & Epilepsy/304A
Cordotomy has evolved since the first open procedure by Spiller and the first percutaneous radiofrequency cordotomy by Mullan in 1965. Kanpolat described CT-guided percutaneous cordotomy in 1989. Bekar published in 2016 the review of CT-guided high-level percutaneous cervical cordotomy for intractable cancer pain in 48 patients in Turkey retrospectively. Shepherd and Mogilner published their series in 2017 in New York, and Viswanathan in 2018 in Texas described step by step about the procedure in a video. The risk of adverse events is minimized with the use of intraoperative imaging and stimulation for clinical assessment and monitoring. We would like to share our experience in a series of patients with intractable cancer pain and how to ensure the safety of patients in our hospital using the hybrid operating theatre and multi-disciplinary team.
Updates on Intraoperative Neurophysiological Monitoring in Posterior Skull Base Neurosurgery
1108 08:50-09:00
Skull Base/304A
Objectives: To enhance surgical safety with novel intraoperative monitoring techniques in posterior skull base neurosurgery
Background: Besides basic SSEP, MEP, BAEP and lower cranial nerves monitoring, there are practices of direct brainstem stimulation for corticospinal tract motor response and SSEP response via scalp recordings. Recently there are a few reports stating the potential of facial nerve function preservation using continuous intraoperative neuro-monitoring (CIONM) of the blink reflex (BR) but none stating that it helps to protect cornea sensation and vision. In addition, the experience of using laryngeal adductor reflex (LAR) in prevention of neurological deficits leading to postoperative hoarseness and non-oral feeding will be shared.
Methods: A prospective cohort study of 40 consecutive patients with lesions in proximity to the brainstem was performed between Jan 2021 and Apr 2024. Besides conventional monitoring, additional BR, the electronic analogue of the cornea reflex, was elicited by electrical stimulation of the ipsilateral supraorbital nerves. Recording electrodes for R1 response were placed over orbicularis oculi muscle at the lower eyelid. BR signal loss or significant drop in the amplitude by 50% from the baseline was regarded as a positive response. Preoperative tumour volume and maximal midline shift (MLS) of brainstem were measured, using readily identifiable anatomical landmarks, namely cerebral aqueduct, median sulcus of 4th ventricle, and mid-point of interpeduncular fossa. Patients' intraoperative findings and clinical outcomes immediately and at 3 months after operation were correlated and reported.
Local Field Potential as Advancing Technology in Deep Brain Stimulation for Refractory Epilepsy - Hong Kong Experience Sharing
1110 08:20-08:30
Functional Neurosurgery & Epilepsy/304A
Deep Brain Stimulation (DBS) as neuro-modulative therapy for treatment of drug refractory epilepsy (DRE) has been gaining popularity since the SANTE trial published in 2010. DBS for DRE had been introduced in Hong Kong since 2015. Totally 11 DBS systems had been implanted till 2023 in 2 tertiary epilepsy surgery centres. Our patients include 7 male and 4 female with mean age at about 30 years old. Among all those cases, 2 had the new Percept DBS systems implanted and 2 had this new systems replaced with anterior nucleus of thalamus (ANT) as the target. Local field potential of ANT were recorded and analysed. Surgical technique, logistics, and seizure reduction in terms of >50% and mean reduction rate will be reported, and factors related to clinical outcome will be analysed.