1.Ectopic Mediastinal Thyroid Successfully Removed by Surgical Excision via Transcervical Approach
Seung Yup SON ; Se Hyeon JIN ; Jong Hwan LEE ; Su Il KIM
Korean Journal of Otolaryngology - Head and Neck Surgery 2025;68(4):168-171
		                        		
		                        			
		                        			 Ectopic thyroid is thyroid tissue found in places other than the anterolateral aspect of the second to fourth tracheal ring. Mediastinal ectopic thyroid is rare and only few cases have been reported. The authors experienced a case of 41-year-old female patient with an anterior neck mass. The patient had mild chest discomfort when breathing with no other symptoms. Imaging studies suggested tumor of thymic tissue origin and surgical excision was done. The mass was successfully removed and histopathologically determined to be thyroid tissue. We hereby report with a review of literature a case of ectopic thyroid found in the mediastinum, which was successfully removed by transcervical incision. 
		                        		
		                        		
		                        		
		                        	
2.Ectopic Mediastinal Thyroid Successfully Removed by Surgical Excision via Transcervical Approach
Seung Yup SON ; Se Hyeon JIN ; Jong Hwan LEE ; Su Il KIM
Korean Journal of Otolaryngology - Head and Neck Surgery 2025;68(4):168-171
		                        		
		                        			
		                        			 Ectopic thyroid is thyroid tissue found in places other than the anterolateral aspect of the second to fourth tracheal ring. Mediastinal ectopic thyroid is rare and only few cases have been reported. The authors experienced a case of 41-year-old female patient with an anterior neck mass. The patient had mild chest discomfort when breathing with no other symptoms. Imaging studies suggested tumor of thymic tissue origin and surgical excision was done. The mass was successfully removed and histopathologically determined to be thyroid tissue. We hereby report with a review of literature a case of ectopic thyroid found in the mediastinum, which was successfully removed by transcervical incision. 
		                        		
		                        		
		                        		
		                        	
3.Ectopic Mediastinal Thyroid Successfully Removed by Surgical Excision via Transcervical Approach
Seung Yup SON ; Se Hyeon JIN ; Jong Hwan LEE ; Su Il KIM
Korean Journal of Otolaryngology - Head and Neck Surgery 2025;68(4):168-171
		                        		
		                        			
		                        			 Ectopic thyroid is thyroid tissue found in places other than the anterolateral aspect of the second to fourth tracheal ring. Mediastinal ectopic thyroid is rare and only few cases have been reported. The authors experienced a case of 41-year-old female patient with an anterior neck mass. The patient had mild chest discomfort when breathing with no other symptoms. Imaging studies suggested tumor of thymic tissue origin and surgical excision was done. The mass was successfully removed and histopathologically determined to be thyroid tissue. We hereby report with a review of literature a case of ectopic thyroid found in the mediastinum, which was successfully removed by transcervical incision. 
		                        		
		                        		
		                        		
		                        	
4.Ectopic Mediastinal Thyroid Successfully Removed by Surgical Excision via Transcervical Approach
Seung Yup SON ; Se Hyeon JIN ; Jong Hwan LEE ; Su Il KIM
Korean Journal of Otolaryngology - Head and Neck Surgery 2025;68(4):168-171
		                        		
		                        			
		                        			 Ectopic thyroid is thyroid tissue found in places other than the anterolateral aspect of the second to fourth tracheal ring. Mediastinal ectopic thyroid is rare and only few cases have been reported. The authors experienced a case of 41-year-old female patient with an anterior neck mass. The patient had mild chest discomfort when breathing with no other symptoms. Imaging studies suggested tumor of thymic tissue origin and surgical excision was done. The mass was successfully removed and histopathologically determined to be thyroid tissue. We hereby report with a review of literature a case of ectopic thyroid found in the mediastinum, which was successfully removed by transcervical incision. 
		                        		
		                        		
		                        		
		                        	
5.Ectopic Mediastinal Thyroid Successfully Removed by Surgical Excision via Transcervical Approach
Seung Yup SON ; Se Hyeon JIN ; Jong Hwan LEE ; Su Il KIM
Korean Journal of Otolaryngology - Head and Neck Surgery 2025;68(4):168-171
		                        		
		                        			
		                        			 Ectopic thyroid is thyroid tissue found in places other than the anterolateral aspect of the second to fourth tracheal ring. Mediastinal ectopic thyroid is rare and only few cases have been reported. The authors experienced a case of 41-year-old female patient with an anterior neck mass. The patient had mild chest discomfort when breathing with no other symptoms. Imaging studies suggested tumor of thymic tissue origin and surgical excision was done. The mass was successfully removed and histopathologically determined to be thyroid tissue. We hereby report with a review of literature a case of ectopic thyroid found in the mediastinum, which was successfully removed by transcervical incision. 
		                        		
		                        		
		                        		
		                        	
6.Diabetic Ketoacidosis as an Effect of Sodium-Glucose Cotransporter 2 Inhibitor: Real World Insights
Han-Sang BAEK ; Chaiho JEONG ; Yeoree YANG ; Joonyub LEE ; Jeongmin LEE ; Seung-Hwan LEE ; Jae Hyoung CHO ; Tae-Seo SOHN ; Hyun-Shik SON ; Kun-Ho YOON ; Eun Young LEE
Diabetes & Metabolism Journal 2024;48(6):1169-1175
		                        		
		                        			
		                        			 One of the notable adverse effects of sodium-glucose cotransporter 2 (SGLT2) inhibitor is diabetic ketoacidosis (DKA) often characterized by euglycemia. In this retrospective review of patients with DKA from 2015 to 2023, 21 cases of SGLT2 inhibitorassociated DKA were identified. Twelve (57.1%) exhibited euglycemic DKA (euDKA) while nine (42.9%) had hyperglycemic DKA (hyDKA). More than 90% of these cases were patients with type 2 diabetes mellitus. Despite similar age, sex, body mass index, and diabetes duration, individuals with hyDKA showed poorer glycemic control and lower C-peptide levels compared with euDKA. Renal impairment and acidosis were worse in the hyDKA group, requiring hemodialysis in two patients. Approximately one-half of hyDKA patients had concurrent hyperosmolar hyperglycemic state. Common symptoms included nausea, vomiting, general weakness, and dyspnea. Seizure was the initial manifestation of DKA in two cases. Infection and volume depletion were major contributors, while carbohydrate restriction and inadequate insulin treatment also contributed to SGLT2 inhibitor-associated DKA. Despite their beneficial effects, clinicians should be vigilant for SGLT2 inhibitor risk associated with DKA. 
		                        		
		                        		
		                        		
		                        	
7.Diabetic Ketoacidosis as an Effect of Sodium-Glucose Cotransporter 2 Inhibitor: Real World Insights
Han-Sang BAEK ; Chaiho JEONG ; Yeoree YANG ; Joonyub LEE ; Jeongmin LEE ; Seung-Hwan LEE ; Jae Hyoung CHO ; Tae-Seo SOHN ; Hyun-Shik SON ; Kun-Ho YOON ; Eun Young LEE
Diabetes & Metabolism Journal 2024;48(6):1169-1175
		                        		
		                        			
		                        			 One of the notable adverse effects of sodium-glucose cotransporter 2 (SGLT2) inhibitor is diabetic ketoacidosis (DKA) often characterized by euglycemia. In this retrospective review of patients with DKA from 2015 to 2023, 21 cases of SGLT2 inhibitorassociated DKA were identified. Twelve (57.1%) exhibited euglycemic DKA (euDKA) while nine (42.9%) had hyperglycemic DKA (hyDKA). More than 90% of these cases were patients with type 2 diabetes mellitus. Despite similar age, sex, body mass index, and diabetes duration, individuals with hyDKA showed poorer glycemic control and lower C-peptide levels compared with euDKA. Renal impairment and acidosis were worse in the hyDKA group, requiring hemodialysis in two patients. Approximately one-half of hyDKA patients had concurrent hyperosmolar hyperglycemic state. Common symptoms included nausea, vomiting, general weakness, and dyspnea. Seizure was the initial manifestation of DKA in two cases. Infection and volume depletion were major contributors, while carbohydrate restriction and inadequate insulin treatment also contributed to SGLT2 inhibitor-associated DKA. Despite their beneficial effects, clinicians should be vigilant for SGLT2 inhibitor risk associated with DKA. 
		                        		
		                        		
		                        		
		                        	
8.Diabetic Ketoacidosis as an Effect of Sodium-Glucose Cotransporter 2 Inhibitor: Real World Insights
Han-Sang BAEK ; Chaiho JEONG ; Yeoree YANG ; Joonyub LEE ; Jeongmin LEE ; Seung-Hwan LEE ; Jae Hyoung CHO ; Tae-Seo SOHN ; Hyun-Shik SON ; Kun-Ho YOON ; Eun Young LEE
Diabetes & Metabolism Journal 2024;48(6):1169-1175
		                        		
		                        			
		                        			 One of the notable adverse effects of sodium-glucose cotransporter 2 (SGLT2) inhibitor is diabetic ketoacidosis (DKA) often characterized by euglycemia. In this retrospective review of patients with DKA from 2015 to 2023, 21 cases of SGLT2 inhibitorassociated DKA were identified. Twelve (57.1%) exhibited euglycemic DKA (euDKA) while nine (42.9%) had hyperglycemic DKA (hyDKA). More than 90% of these cases were patients with type 2 diabetes mellitus. Despite similar age, sex, body mass index, and diabetes duration, individuals with hyDKA showed poorer glycemic control and lower C-peptide levels compared with euDKA. Renal impairment and acidosis were worse in the hyDKA group, requiring hemodialysis in two patients. Approximately one-half of hyDKA patients had concurrent hyperosmolar hyperglycemic state. Common symptoms included nausea, vomiting, general weakness, and dyspnea. Seizure was the initial manifestation of DKA in two cases. Infection and volume depletion were major contributors, while carbohydrate restriction and inadequate insulin treatment also contributed to SGLT2 inhibitor-associated DKA. Despite their beneficial effects, clinicians should be vigilant for SGLT2 inhibitor risk associated with DKA. 
		                        		
		                        		
		                        		
		                        	
9.Diabetic Ketoacidosis as an Effect of Sodium-Glucose Cotransporter 2 Inhibitor: Real World Insights
Han-Sang BAEK ; Chaiho JEONG ; Yeoree YANG ; Joonyub LEE ; Jeongmin LEE ; Seung-Hwan LEE ; Jae Hyoung CHO ; Tae-Seo SOHN ; Hyun-Shik SON ; Kun-Ho YOON ; Eun Young LEE
Diabetes & Metabolism Journal 2024;48(6):1169-1175
		                        		
		                        			
		                        			 One of the notable adverse effects of sodium-glucose cotransporter 2 (SGLT2) inhibitor is diabetic ketoacidosis (DKA) often characterized by euglycemia. In this retrospective review of patients with DKA from 2015 to 2023, 21 cases of SGLT2 inhibitorassociated DKA were identified. Twelve (57.1%) exhibited euglycemic DKA (euDKA) while nine (42.9%) had hyperglycemic DKA (hyDKA). More than 90% of these cases were patients with type 2 diabetes mellitus. Despite similar age, sex, body mass index, and diabetes duration, individuals with hyDKA showed poorer glycemic control and lower C-peptide levels compared with euDKA. Renal impairment and acidosis were worse in the hyDKA group, requiring hemodialysis in two patients. Approximately one-half of hyDKA patients had concurrent hyperosmolar hyperglycemic state. Common symptoms included nausea, vomiting, general weakness, and dyspnea. Seizure was the initial manifestation of DKA in two cases. Infection and volume depletion were major contributors, while carbohydrate restriction and inadequate insulin treatment also contributed to SGLT2 inhibitor-associated DKA. Despite their beneficial effects, clinicians should be vigilant for SGLT2 inhibitor risk associated with DKA. 
		                        		
		                        		
		                        		
		                        	
10.Real-World Treatment Patterns according to Clinical Practice Guidelines in Patients with Type 2 Diabetes Mellitus and Established Cardiovascular Disease in Korea: Multicenter, Retrospective, Observational Study
Ye Seul YANG ; Nam Hoon KIM ; Jong Ha BAEK ; Seung-Hyun KO ; Jang Won SON ; Seung-Hwan LEE ; Sang Youl RHEE ; Soo-Kyung KIM ; Tae Seo SOHN ; Ji Eun JUN ; In-Kyung JEONG ; Chong Hwa KIM ; Keeho SONG ; Eun-Jung RHEE ; Junghyun NOH ; Kyu Yeon HUR ;
Diabetes & Metabolism Journal 2024;48(2):279-289
		                        		
		                        			 Background:
		                        			Recent diabetes management guidelines recommend that sodium-glucose cotransporter 2 inhibitors (SGLT2is) or glucagon-like peptide 1 receptor agonists (GLP-1RAs) with proven cardiovascular benefits should be prioritized for combination therapy in patients with type 2 diabetes mellitus (T2DM) and established cardiovascular disease (CVD). This study was aimed at evaluating SGLT2i or GLP-1RA usage rates and various related factors in patients with T2DM and established CVD. 
		                        		
		                        			Methods:
		                        			We enrolled adults with T2DM aged ≥30 years who were hospitalized due to established CVD from January 2019 to May 2020 at 13 secondary and tertiary hospitals in Korea in this retrospective observational study. 
		                        		
		                        			Results:
		                        			Overall, 2,050 patients were eligible for analysis among 2,107 enrolled patients. The mean patient age, diabetes duration, and glycosylated hemoglobin level were 70.0 years, 12.0 years, and 7.5%, respectively. During the mean follow-up duration of 9.7 months, 25.7% of the patients were prescribed SGLT2is after CVD events. However, only 1.8% were prescribed GLP-1RAs. Compared with SGLT2i non-users, SGLT2i users were more frequently male and obese. Furthermore, they had a shorter diabetes duration but showed worse glycemic control and better renal function at the time of the event. GLP-1RA users had a longer duration of diabetes and worse glycemic control at the time of the event than GLP-1RA non-users. 
		                        		
		                        			Conclusion
		                        			The SGLT2i or GLP-1RA prescription rates were suboptimal in patients with T2DM and established CVD. Sex, body mass index, diabetes duration, glycemic control, and renal function were associated with the use of these agents. 
		                        		
		                        		
		                        		
		                        	
            
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