1.Reduction Glossectomy in a 3-Month-Old Female Infant With Beckwith-Wiedemann Syndrome
Gangmi KIM ; Subi OH ; Younghac KIM ; Nayeon CHOI
Korean Journal of Otolaryngology - Head and Neck Surgery 2025;68(2):74-77
Beckwith-Wiedemann syndrome (BWS) is a genetic overgrowth disorder presenting with various clinical manifestations, including macroglossia, visceromegaly, gigantism, neonatal hypoglycemia, and anterior abdominal wall defects. Most patients with BWS suffer from swallowing and respiratory difficulty due to macroglossia, which requires surgical intervention. However, the tongue has a complex neuromuscular anatomy which is closely related to swallowing, phonation, and respiration. Therefore, care should be taken when performing reduction glossectomy for BWS patients to minimize complication after surgery. This case report describes a successful surgical intervention for macroglossia in a 3-month-old female infant diagnosed with BWS, who presented respiratory and swallowing difficulty. The keyhole shape glossectomy was performed and the patient was orally fed without respiratory difficulty 3 weeks following the surgery.
2.A Case of Invasive Rhino-Orbito-Cerebral Mucormycosis After Acupuncture Therapy for Bell’s Palsy
Younghac KIM ; Han-Sin JEONG ; Young Sang CHO ; Nayeon CHOI
Korean Journal of Otolaryngology - Head and Neck Surgery 2025;68(1):36-39
Rhino-orbito-cerebral mucormycosis (ROCM) is a rare fungal infection that may be fatal in immunocompromised patients. Acupuncture is commonly used in Eastern Asia in addition to steroid medication for the treatment of Bell’s palsy. For such patients with comorbid medical conditions, potential risks might arise after the acupuncture procedure; however, ROCM following acupuncture therapy has not been reported to date. Here we present a rare case of invasive mucormycosis that began from the facial skin after acupuncture procedure. In this case, the patient was suspected of ROCM infection and emergently treated with surgical debridement and antifungal therapy. Despite early surgical debridement and medical treatment, the patient died due to brain infarction and invasion of mucormycosis into the internal carotid artery and cavernous sinus. Although acupuncture therapy is considered relatively safe in general, care should be taken when performing acupuncture in patients with underlying diseases that cause immunosuppression.
3.Factors associated with anti-drug antibody production in ankylosing spondylitis patients treated with the infliximab biosimilar CT-P13
Yongbum KIM ; Nayeon CHOI ; Ji-Hui SHIN ; Sungsin JO ; Bora NAM ; Tae-Hwan KIM
Journal of Rheumatic Diseases 2025;32(2):136-144
Objective:
CT-P13, a biosimilar of infliximab, is widely used for treating ankylosing spondylitis (AS). However, the formation of anti-drug antibodies (ADAs) can reduce its efficacy. This study aimed to identify risk factors associated with high ADA levels in AS patients treated with CT-P13.
Methods:
A prospective observational study enrolled patients with intravenous CT-P13. Clinical data and disease activity was assessed at baseline, 24 weeks, and 54 weeks after CT-P13 treatment. Blood concentrations of CT-P13 and ADAs were measured at 24 and 54 weeks, and their correlation was investigated. Patients were grouped by ADA levels at 54 weeks. Univariable and multivariable logistic regression identified factors associated with high ADA concentrations.
Results:
A total of 34 patients was enrolled. Significant decreases in Bath Ankylosing Spondylitis Disease Activity Index and Bath Ankylosing Spondylitis Functional Index scores were observed relative to baseline after 24 weeks of CT-P13 therapy. Serum concentrations of CT-P13 and ADA levels increased following treatment. The median serum CT-P13 concentration was 17.6 [12.8, 22.7] µg/mL at 24 weeks and 23.5 [11.7, 34.2] µg/mL at 54 weeks. ADA levels were 6.7 [6.5, 9.1] AU/mL at 24 weeks and 11.4 [9.0, 28.4] AU/mL at 54 weeks. The serum concentrations of CT-P13 and ADA exhibited a negative correlation. In multivariable analysis, current smoking was associated with high ADA production at 54 weeks.
Conclusion
Smoking is identified as a significant risk factor for elevated ADAs in AS patients treated with CT-P13. The findings underscore the importance of smoking-cessation strategies in the management of AS patients.
4.Risk Factors for Emergency Room Visits Among Patients With Head and Neck Cancer: A Longitudinal Cohort Study Within the Korean Healthcare System
Heejun YI ; Hyojun KIM ; Younghac KIM ; Ye-Jin SUH ; Joo Hyun PARK ; Nayeon CHOI ; Han-Sin JEONG
Clinical and Experimental Otorhinolaryngology 2025;18(1):64-72
Objectives:
. A substantial proportion of patients with head and neck cancer (HNC) require emergency room (ER) visits or unplanned hospitalizations during or after treatment with various modalities. We investigated HNC cases that necessitated ER visitation after cancer treatment, aiming to identify potential risk factors in the context of the Korean healthcare system.
Methods:
. This single-center cohort study examined patients with HNC who received cancer treatments at Samsung Medical Center in 2019 (n=566). Treatment modalities included surgery alone (n=184), surgery and adjuvant therapy (n=138), curative non-surgical treatment such as radiation or chemoradiation (n=209), and palliative treatments (n=35). We followed these cases for up to 3 years, focusing on those who visited the ER during or after cancer treatment, and analyzed the primary reasons and risk factors associated with these visits.
Results:
. The ER visitation rate was 8.0% (n=45) among patients with HNC, with a total of 70 ER visits (12.4%; mean, 1.56; range, 1–4). The rate of treatment-related ER visitation was 4.6%. Common reasons for ER visits included surgical site or wound complications (31.1% of patients visiting the ER, 22.9% of ER visits) and issues with oral intake or feeding (22.2% of patients, 31.4% of visits). Significant risk factors for ER visits included tumor subsite (with hypopharyngeal cancer associated with a 17.9% rate of treatment-related ER visits), tumor stage (T2–4, 8.6%–12.2%; N+ status, 6.7%), and treatment modality (surgery with adjuvant chemoradiation, 19.4%). Patient age and comorbidities did not represent significant factors.
Conclusion
. The most frequent reasons for ER visits among patients with HNC included complications with wounds and feeding. Additionally, tumor characteristics and treatment modality were independent risk factors for ER visits. Adequate planning and management to address these issues could potentially decrease the number of ER visits, lower costs, and improve patient care.
5.Reduction Glossectomy in a 3-Month-Old Female Infant With Beckwith-Wiedemann Syndrome
Gangmi KIM ; Subi OH ; Younghac KIM ; Nayeon CHOI
Korean Journal of Otolaryngology - Head and Neck Surgery 2025;68(2):74-77
Beckwith-Wiedemann syndrome (BWS) is a genetic overgrowth disorder presenting with various clinical manifestations, including macroglossia, visceromegaly, gigantism, neonatal hypoglycemia, and anterior abdominal wall defects. Most patients with BWS suffer from swallowing and respiratory difficulty due to macroglossia, which requires surgical intervention. However, the tongue has a complex neuromuscular anatomy which is closely related to swallowing, phonation, and respiration. Therefore, care should be taken when performing reduction glossectomy for BWS patients to minimize complication after surgery. This case report describes a successful surgical intervention for macroglossia in a 3-month-old female infant diagnosed with BWS, who presented respiratory and swallowing difficulty. The keyhole shape glossectomy was performed and the patient was orally fed without respiratory difficulty 3 weeks following the surgery.
6.A Case of Invasive Rhino-Orbito-Cerebral Mucormycosis After Acupuncture Therapy for Bell’s Palsy
Younghac KIM ; Han-Sin JEONG ; Young Sang CHO ; Nayeon CHOI
Korean Journal of Otolaryngology - Head and Neck Surgery 2025;68(1):36-39
Rhino-orbito-cerebral mucormycosis (ROCM) is a rare fungal infection that may be fatal in immunocompromised patients. Acupuncture is commonly used in Eastern Asia in addition to steroid medication for the treatment of Bell’s palsy. For such patients with comorbid medical conditions, potential risks might arise after the acupuncture procedure; however, ROCM following acupuncture therapy has not been reported to date. Here we present a rare case of invasive mucormycosis that began from the facial skin after acupuncture procedure. In this case, the patient was suspected of ROCM infection and emergently treated with surgical debridement and antifungal therapy. Despite early surgical debridement and medical treatment, the patient died due to brain infarction and invasion of mucormycosis into the internal carotid artery and cavernous sinus. Although acupuncture therapy is considered relatively safe in general, care should be taken when performing acupuncture in patients with underlying diseases that cause immunosuppression.
7.Reduction Glossectomy in a 3-Month-Old Female Infant With Beckwith-Wiedemann Syndrome
Gangmi KIM ; Subi OH ; Younghac KIM ; Nayeon CHOI
Korean Journal of Otolaryngology - Head and Neck Surgery 2025;68(2):74-77
Beckwith-Wiedemann syndrome (BWS) is a genetic overgrowth disorder presenting with various clinical manifestations, including macroglossia, visceromegaly, gigantism, neonatal hypoglycemia, and anterior abdominal wall defects. Most patients with BWS suffer from swallowing and respiratory difficulty due to macroglossia, which requires surgical intervention. However, the tongue has a complex neuromuscular anatomy which is closely related to swallowing, phonation, and respiration. Therefore, care should be taken when performing reduction glossectomy for BWS patients to minimize complication after surgery. This case report describes a successful surgical intervention for macroglossia in a 3-month-old female infant diagnosed with BWS, who presented respiratory and swallowing difficulty. The keyhole shape glossectomy was performed and the patient was orally fed without respiratory difficulty 3 weeks following the surgery.
8.A Case of Invasive Rhino-Orbito-Cerebral Mucormycosis After Acupuncture Therapy for Bell’s Palsy
Younghac KIM ; Han-Sin JEONG ; Young Sang CHO ; Nayeon CHOI
Korean Journal of Otolaryngology - Head and Neck Surgery 2025;68(1):36-39
Rhino-orbito-cerebral mucormycosis (ROCM) is a rare fungal infection that may be fatal in immunocompromised patients. Acupuncture is commonly used in Eastern Asia in addition to steroid medication for the treatment of Bell’s palsy. For such patients with comorbid medical conditions, potential risks might arise after the acupuncture procedure; however, ROCM following acupuncture therapy has not been reported to date. Here we present a rare case of invasive mucormycosis that began from the facial skin after acupuncture procedure. In this case, the patient was suspected of ROCM infection and emergently treated with surgical debridement and antifungal therapy. Despite early surgical debridement and medical treatment, the patient died due to brain infarction and invasion of mucormycosis into the internal carotid artery and cavernous sinus. Although acupuncture therapy is considered relatively safe in general, care should be taken when performing acupuncture in patients with underlying diseases that cause immunosuppression.
9.Risk Factors for Emergency Room Visits Among Patients With Head and Neck Cancer: A Longitudinal Cohort Study Within the Korean Healthcare System
Heejun YI ; Hyojun KIM ; Younghac KIM ; Ye-Jin SUH ; Joo Hyun PARK ; Nayeon CHOI ; Han-Sin JEONG
Clinical and Experimental Otorhinolaryngology 2025;18(1):64-72
Objectives:
. A substantial proportion of patients with head and neck cancer (HNC) require emergency room (ER) visits or unplanned hospitalizations during or after treatment with various modalities. We investigated HNC cases that necessitated ER visitation after cancer treatment, aiming to identify potential risk factors in the context of the Korean healthcare system.
Methods:
. This single-center cohort study examined patients with HNC who received cancer treatments at Samsung Medical Center in 2019 (n=566). Treatment modalities included surgery alone (n=184), surgery and adjuvant therapy (n=138), curative non-surgical treatment such as radiation or chemoradiation (n=209), and palliative treatments (n=35). We followed these cases for up to 3 years, focusing on those who visited the ER during or after cancer treatment, and analyzed the primary reasons and risk factors associated with these visits.
Results:
. The ER visitation rate was 8.0% (n=45) among patients with HNC, with a total of 70 ER visits (12.4%; mean, 1.56; range, 1–4). The rate of treatment-related ER visitation was 4.6%. Common reasons for ER visits included surgical site or wound complications (31.1% of patients visiting the ER, 22.9% of ER visits) and issues with oral intake or feeding (22.2% of patients, 31.4% of visits). Significant risk factors for ER visits included tumor subsite (with hypopharyngeal cancer associated with a 17.9% rate of treatment-related ER visits), tumor stage (T2–4, 8.6%–12.2%; N+ status, 6.7%), and treatment modality (surgery with adjuvant chemoradiation, 19.4%). Patient age and comorbidities did not represent significant factors.
Conclusion
. The most frequent reasons for ER visits among patients with HNC included complications with wounds and feeding. Additionally, tumor characteristics and treatment modality were independent risk factors for ER visits. Adequate planning and management to address these issues could potentially decrease the number of ER visits, lower costs, and improve patient care.
10.Factors associated with anti-drug antibody production in ankylosing spondylitis patients treated with the infliximab biosimilar CT-P13
Yongbum KIM ; Nayeon CHOI ; Ji-Hui SHIN ; Sungsin JO ; Bora NAM ; Tae-Hwan KIM
Journal of Rheumatic Diseases 2025;32(2):136-144
Objective:
CT-P13, a biosimilar of infliximab, is widely used for treating ankylosing spondylitis (AS). However, the formation of anti-drug antibodies (ADAs) can reduce its efficacy. This study aimed to identify risk factors associated with high ADA levels in AS patients treated with CT-P13.
Methods:
A prospective observational study enrolled patients with intravenous CT-P13. Clinical data and disease activity was assessed at baseline, 24 weeks, and 54 weeks after CT-P13 treatment. Blood concentrations of CT-P13 and ADAs were measured at 24 and 54 weeks, and their correlation was investigated. Patients were grouped by ADA levels at 54 weeks. Univariable and multivariable logistic regression identified factors associated with high ADA concentrations.
Results:
A total of 34 patients was enrolled. Significant decreases in Bath Ankylosing Spondylitis Disease Activity Index and Bath Ankylosing Spondylitis Functional Index scores were observed relative to baseline after 24 weeks of CT-P13 therapy. Serum concentrations of CT-P13 and ADA levels increased following treatment. The median serum CT-P13 concentration was 17.6 [12.8, 22.7] µg/mL at 24 weeks and 23.5 [11.7, 34.2] µg/mL at 54 weeks. ADA levels were 6.7 [6.5, 9.1] AU/mL at 24 weeks and 11.4 [9.0, 28.4] AU/mL at 54 weeks. The serum concentrations of CT-P13 and ADA exhibited a negative correlation. In multivariable analysis, current smoking was associated with high ADA production at 54 weeks.
Conclusion
Smoking is identified as a significant risk factor for elevated ADAs in AS patients treated with CT-P13. The findings underscore the importance of smoking-cessation strategies in the management of AS patients.

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