Marcus Sim Jian Hong

May 2024 - MRCS Part A

April 2025 - CGH SKH Advanced Laparoscopic Suturing Workshop

March 2025 - Basic Surgical Skills Workshop at Singapore General Hospita

October 2024 - Endoscopic Simulation Workshop, Singapore General Hospital

October 2024 - Essential Gastrointestinal Anastomosis Workshop at Singapore General Hospital

September 2024 - Basic Laparoscopy Workshop, Singapore General Hospital

Prophylactic and Therapeutic utility of Povidone Iodine in Ocular Infections, 2022 - 2023

• Systematic Review and Data analysis under National University of Singapore Ophthalmology
• Optical Coherence Tomography Angiography, 2020 - 2022
• Data analysis and processing of OCTA images in patients with diabetic retinopathy and glaucoma as part of Artificial Intelligence machine learning

Recurrence Rates of Thyroid Cancers (Dr Li Hao), July 2025 - Present 

Aims:

• To check recurrence rates after either Hemithyroidectomy or Total Thyroidectomy
• To compare outcomes with central vs no central neck dissection for Total Thyroidectomy
• Accuracy of ultrasound in detecting lymph node metastasis from Thyroid Cancer

Outcomes after Fistula Tract Laser Closure (FILAC) Surgery, January 2025 - Present

• Oral Presentation at 3rd Emirates International Colorectal Congress in Dubai (14th - 16th November 2025) under Emirates Society of Colon and Rectal Surgery

Laparoscopic Intracorporeal Single-stapled Anastomosis with Transanal Extraction (LISSTE) reduces cost and anastomotic leak rates for anterior resection, May 2024 - Present

• Meta-analysis under SGH Department of Colorectal Surgery (Dr Cherilyn Fu)
• Oral Presentation at European Colorectal Congress in St Gallen, Switzerland (30th November 2024 - 4th December 2024)

Prophylactic Thyroidectomy in Hashimoto Thyroiditis, 2023 - Present

• Scoping Review under Tan Tock Seng Hospital (Dr Li Hao)
• Submitted to Society of Asian Academic Surgeons (SAAS)

Systematic Review on functional outcomes of trimalleolar fractures, January 2024 - Present

• Cohort study analysing long term functional outcomes of trimalleolar fractures under Seng Kang Orthopaedics Department (Dr Eric Cher)

Tracheostomy in patients receiving extracorporeal membrane oxygenation: a systematic review and meta-analysis, August 2023 - 2024

• Co-author

2022 - Otorhinolaryngology Clinical Specialty Interest Group Research Head

- Sourced and linked medical students with ENT research and workshop opportunities 

2019 - 2020 Project Head of Project Sa'Bai 

- Proposed, planned and executed new initiatives as well as coordinated free healthcare screenings with medical students in Cambodia 

- Coordinating with overseas medical students for ground recce surveys, patient education on heath seeking behaviours and referrals for patient back to their local healthcare institutions for treatment 

- Worked closely together with healthcare authorities within Cambodia for coordinating clinics and referrals to local healthcare institutions 

- Served as a platform between NUS and health institutions within Cambodia to coordinate with all the NUS Medicine Overseas Community-involvement projects within NUS operating in Cambodia 

2019 - Team Leader for Project Legacy

- Coordinated followups with patients under palliative care as Group Leader for Project Legacy

2018 - 2023 - Vice House Captain

- Responsible for welfare of batch mates and juniors as Vice House Captain