| 2011-08 | Image-Guided Robotic Mastoidectomy Using Human-Robot Collaboration Control | 이승환 |
| 2019-03 | Increased risk of benign paroxysmal positional vertigo in osteoporosis: a nationwide population-based cohort study | 이승환 |
| 2020-12 | Influence of Otoliths on the Vestibulo-Ocular Reflex in Horizontal Canal Benign Paroxysmal Positional Vertigo | 이승환 |
| 2014-10 | Intratympanic Steroid Injection for Bell's Palsy: Preliminary Randomized Controlled Study | 이승환 |
| 2018-11 | Microbiological Results From Middle Ear Effusion in Pediatric Patients Receiving Ventilation Tube Insertion: Multicenter Registry Study on the Effectiveness of Ventilation Tube Insertion in Pediatric Patients With Chronic Otitis Media With Effusion: Part I | 이승환 |
| 2012-12 | Mucoepidermoid Carcinoma in The External Auditory Canal: A Case Report | 이승환 |
| 2015-09 | Multivariate analysis of prognostic factors for idiopathic sudden sensorineural hearing loss in children | 이승환 |
| 2012-12 | Nasal and Exhaled Nitric Oxide in Allergic Rhinitis | 이승환 |
| 2014-01 | Nasal and exhaled nitric oxide in chronic rhinosinusitis with polyps | 이승환 |
| 2018-07 | Optimal extent of prophylactic central neck dissection for papillary thyroid carcinoma: Comparison of unilateral versus bilateral central neck dissection | 이승환 |
| 2016-05 | The Pathophysiologic Mechanism of Tinnitus. | 이승환 |
| 2016-10 | Prevalence and Associated Factors of Chronic Suppurative Otitis Media: Data from the Korea National Health and Nutrition Examination Survey, 2009-2012 | 이승환 |
| 2018-07 | Prevalence of severe-profound hearing loss in South Korea: a nationwide population-based study to analyse a 10-year trend (2006-2015) | 이승환 |
| 2020-10 | Rate of chronic otitis media operations and cholesteatoma surgeries in South Korea: a nationwide population-based study (2006-2018) | 이승환 |
| 2014-08 | Robotic Lateral Neck Dissection by a Gasless Unilateral Axillobreast Approach for Differentiated Thyroid Carcinoma: Our Early Experience | 이승환 |
| 2014-03 | Robotic Selective Neck Dissection by a Postauricular Facelift Approach Comparison with Conventional Neck Dissection | 이승환 |
| 2011-01 | Robotic thyroidectomy by a gasless unilateral axillo-breast or axillary approach: our early experiences | 이승환 |
| 2015-06 | Role of Cochlear Microphonic in Newborn Hearing test | 이승환 |
| 2011-08 | The Role of Laryngopharyngeal Reflux as a Risk Factor in Laryngeal Cancer: A Preliminary Report | 이승환 |
| 2015-07 | The Significance of Neutrophil to Lymphocyte Ratio and Platelet to Lymphocyte Ratio in Vestibular Neuritis | 이승환 |
| 2020-10 | Status of early hearing detection and intervention in South Korea: a nationwide population-based study of national infant health checkup | 이승환 |
| 2017-04 | Temperament and character traits in patients with tinnitus: a prospective case series with comparisons | 이승환 |
| 2015-07 | Two cases of thyroid rupture after blunt cervical trauma | 이승환 |
| 2013-01 | 갑상선 절제술 후 부갑상선 기능저하증의 양상 및 부갑상선 자가이식의 효과 | 이승환 |
| 2013-08 | 고빌리루빈혈증 환아에서 청성뇌간유발반응을 이용한 청력 고찰 | 이승환 |
| 2020-12 | 급성 저음역 감각신경성 난청에서 호중구-림프구 비율 및 혈소판-림프구 비율의 의의 | 이승환 |
| 2014-08 | 노인 돌발성 난청 환자의 임상적 특징 및 예후인자에 대한 분석 | 이승환 |
| 2017-06 | 돌발성 난청에서 스테로이드 투여 방법에 따른 치료 결과의 차이 | 이승환 |
| 2011-08 | 비 질환에서 비강 및 호기 산화질소의 측정 | 이승환 |
| 2016-04 | 비인두암으로 오인된 Immunoglobulin G4 연관 경화성 질환 2예 | 이승환 |
