1.Advanced technique of biportal endoscopic transforaminal lumbar interbody fusion for revision surgery: a technical note
Young-Il KO ; Jin Young LEE ; Hun-Chul KIM ; Hyeon Guk CHO ; Jeong Woo PARK ; Sang-Ho HAN
Asian Spine Journal 2025;19(2):267-274
The application area of biportal endoscopic spine surgery (BESS) is gradually expanding. Compared with conventional fusion surgery, transforaminal interbody fusion (TLIF) using BESS (BESS-TLIF) has the advantages of less bleeding, minimal postoperative pain, and faster recovery. This technical note highlights its application in managing complex conditions such as scar tissue adhesion, altered anatomy, and implant removal, common in reoperations. The method focuses on precise dissection, endoscopic visualization, and careful tissue handling to ensure effective decompression and stabilization. Three representative cases, including reoperations for recurrent disc herniation, adjacent segment disease (ASD) following prior fusion, and ASD with nonunion of the prior fusion site requiring fusion extension, were described. All three cases exhibited clinical improvement following surgery. BESS is an effective and safe method for spinal revision surgery not only in simple decompression surgery but also in cases that required fusion surgery. As BESS is advancing, its role in complex spinal surgeries is expected to expand, potentially setting new standards in minimally invasive spine surgery.
2.Advanced technique of biportal endoscopic transforaminal lumbar interbody fusion for revision surgery: a technical note
Young-Il KO ; Jin Young LEE ; Hun-Chul KIM ; Hyeon Guk CHO ; Jeong Woo PARK ; Sang-Ho HAN
Asian Spine Journal 2025;19(2):267-274
The application area of biportal endoscopic spine surgery (BESS) is gradually expanding. Compared with conventional fusion surgery, transforaminal interbody fusion (TLIF) using BESS (BESS-TLIF) has the advantages of less bleeding, minimal postoperative pain, and faster recovery. This technical note highlights its application in managing complex conditions such as scar tissue adhesion, altered anatomy, and implant removal, common in reoperations. The method focuses on precise dissection, endoscopic visualization, and careful tissue handling to ensure effective decompression and stabilization. Three representative cases, including reoperations for recurrent disc herniation, adjacent segment disease (ASD) following prior fusion, and ASD with nonunion of the prior fusion site requiring fusion extension, were described. All three cases exhibited clinical improvement following surgery. BESS is an effective and safe method for spinal revision surgery not only in simple decompression surgery but also in cases that required fusion surgery. As BESS is advancing, its role in complex spinal surgeries is expected to expand, potentially setting new standards in minimally invasive spine surgery.
3.Advanced technique of biportal endoscopic transforaminal lumbar interbody fusion for revision surgery: a technical note
Young-Il KO ; Jin Young LEE ; Hun-Chul KIM ; Hyeon Guk CHO ; Jeong Woo PARK ; Sang-Ho HAN
Asian Spine Journal 2025;19(2):267-274
The application area of biportal endoscopic spine surgery (BESS) is gradually expanding. Compared with conventional fusion surgery, transforaminal interbody fusion (TLIF) using BESS (BESS-TLIF) has the advantages of less bleeding, minimal postoperative pain, and faster recovery. This technical note highlights its application in managing complex conditions such as scar tissue adhesion, altered anatomy, and implant removal, common in reoperations. The method focuses on precise dissection, endoscopic visualization, and careful tissue handling to ensure effective decompression and stabilization. Three representative cases, including reoperations for recurrent disc herniation, adjacent segment disease (ASD) following prior fusion, and ASD with nonunion of the prior fusion site requiring fusion extension, were described. All three cases exhibited clinical improvement following surgery. BESS is an effective and safe method for spinal revision surgery not only in simple decompression surgery but also in cases that required fusion surgery. As BESS is advancing, its role in complex spinal surgeries is expected to expand, potentially setting new standards in minimally invasive spine surgery.
4.Unilateral Biportal Endoscopy-Assisted Thoracic Interbody Cage Insertion for the Treatment of Proximal Junctional Failure
Hun-Chul KIM ; Jin Young LEE ; Hyeon Guk CHO ; Jeong Woo PARK ; Sang-Ho HAN ; Young-Il KO
Journal of Minimally Invasive Spine Surgery and Technique 2025;10(Suppl 1):S75-S80
In the thoracic spine, when disc herniation causes cord compression in the anterior region, it is difficult to access the disc space. When using the unilateral biportal endoscopy (UBE) technique, the disc can be accessed from various angles with minimal damage to normal tissue. We performed cage insertion using UBE when treating a patient with thoracic myelopathy due to proximal junctional failure in the thoracic spine. A 77-year-old woman with prior spinal fusions and recent proximal junctional kyphosis presented with myelopathy. The patient first visited our hospital due to gait instability and decreased muscle strength that had occurred 2 months previously. The imaging findings confirmed cord compression due to disc herniation at the T10–11 level. Interbody fusion was performed at the T10–11 level using the UBE technique, and fusion was performed up to the T8 level. UBE offers a viable alternative to traditional approaches in thoracic spinal surgery, providing improved visualization and reducing pulmonary complications. This technique, combined with open surgery, effectively addresses the challenges of thoracic interbody cage insertion, demonstrating its potential to overcome the limitations of conventional methods.
5.Expert opinion on evidence after 2020 Korean Cardiopulmonary Resuscitation Guidelines
Sung Phil CHUNG ; Youdong SOHN ; Jisook LEE ; Youngsuk CHO ; Kyoung-Chul CHA ; Ju Sun HEO ; Ai-Rhan Ellen KIM ; Jae Guk KIM ; Han-Suk KIM ; Hyungoo SHIN ; Chiwon AHN ; Ho Geol WOO ; Byung Kook LEE ; Yong Soo JANG ; Yu Hyeon CHOI ; Sung Oh HWANG ;
Journal of the Korean Society of Emergency Medicine 2023;34(4):287-296
Considerable evidence has been published since the 2020 Korean Cardiopulmonary Resuscitation Guidelines were reported. The International Liaison Committee on Resuscitation (ILCOR) also publishes the Consensus on CPR and Emergency Cardiovascular Care Science with Treatment Recommendations (CoSTR) summary annually. This review provides expert opinions by reviewing the recent evidence on CPR and ILCOR treatment recommendations. The authors reviewed the CoSTR summary published by ILCOR in 2021 and 2022. PICO (population, intervention, comparator, outcome) questions for each topic were reviewed using a systemic or scoping review methodology. Two experts were appointed for each question and reviewed the topic independently. Topics suggested by the reviewers for revision or additional description of the guidelines were discussed at a consensus conference. Forty-three questions were reviewed, including 15 on basic life support, seven on advanced life support, two on pediatric life support, 11 on neonatal life support, six on education and teams, one on first aid, and one related to coronavirus disease 2019 (COVID-19). Finally, the current Korean CPR Guideline was maintained for 28 questions, and expert opinions were suggested for 15 questions.
6.Effectiveness of Intraluminal Air Decompression on Postcolonoscopic Pain According to Reinsertion Site.
Young Jin SUR ; Jung Hyun KIM ; Seung Jin JUNG ; Dong Won LEE ; Sang Hyun CHO ; Ryang Pyo KIM ; Tae Wan KIM ; Hyeon Guk SHIN ; A Ram HONG ; Hyun Woo KWON
Korean Journal of Family Medicine 2016;37(3):156-163
BACKGROUND: Colonoscopy is a very effective and essential examination to diagnose colorectal cancer; however, many patients experience discomfort due to post-examination abdominal pain, which reduces colonoscopy compliance. This study was conducted to determine methods for reducing post-colonoscopic abdominal pain. METHODS: We conducted a randomized controlled study of 405 male and female adults who visited Hana General Hospital in Cheongju. We surveyed general characteristics, history of colonoscopy, and other related factors, then categorized examinees into 5 groups (0-5) according to the site of scope reinsertion. Pain was measured using a numeric rating scale (NRS). RESULTS: The mean age of examinees in this study was 47.8 years, and 210 participants had prior experience of colonoscopy. No significant difference was observed between variables, with the exception of reinsertion duration (P=0.005). Pain scores were different between performing physicians (P=0.006), and were higher when the subjective level of procedure difficulty was low (P=0.026) in univariate analysis. Pain scores decreased as the reinsertion site became closer to the proximal colon (P<0.001), but there was no significant difference between groups 3 and 4. The results of multiple logistic regression analysis, including univariate analysis, showed that group 1 had 0.48 times, group 2 had 0.38 times, group 3 had 0.09 times, and group 4 had 0.03 times odds ratio (moderate-to-severe pain, NRS ≥4) than control group 0. CONCLUSION: Air decompression by scope reinsertion is an effective way to reduce abdominal pain after colonoscopy. Removing air when the reinserted scope approaches the hepatic flexure seems to be the most effective method to reduce post-colonoscopic pain.
Abdominal Pain
;
Adult
;
Chungcheongbuk-do
;
Colon
;
Colonoscopy
;
Colorectal Neoplasms
;
Compliance
;
Decompression*
;
Female
;
Hospitals, General
;
Humans
;
Logistic Models
;
Male
;
Methods
;
Odds Ratio
7.Efficacy of a Topical Gelatin-Thrombin Matrix Sealant in Reducing Postoperative Drainage Following Anterior Cervical Discectomy and Fusion.
Quan You LI ; Osung LEE ; Ho Sung HAN ; Gang Un KIM ; Chee Kean LEE ; Sung Shik KANG ; Myung Ho LEE ; Hyeon Guk CHO ; Ho Joong KIM ; Jin S YEOM
Asian Spine Journal 2015;9(6):909-915
STUDY DESIGN: Retrospective fusion level(s)-, age-, and gender-matched analysis. PURPOSE: To determine whether the application of a topical gelatin-thrombin matrix sealant (Floseal) at the end of anterior cervical discectomy and fusion (ACDF) can reduce the amount of postoperative hemorrhage. OVERVIEW OF LITERATURE: The effect of the matrix sealant in decreasing postoperative hemorrhage following ACDF has not been reported. METHODS: Matrix sealant was (n=116, study group) or was not applied (n=58, control group) at the end of ACDF. Patients were selected by 1:2 matching criteria of fusion level(s), age, and gender. Seven parameters described below were compared between the two groups. RESULTS: The total drain amount for the first 24 hours (8+/-9 versus 27+/-22 mL), total drain amount until the 8-hour drainage decreased to < or =10 mL (8+/-10 versus 33+/-26 mL), and the total drain amount until 6 AM on the first postoperative day (7+/-8 versus 24+/-20 mL) were significantly lower in the study group than the control group (all p<0.001). The time for the 8-hour drainage to decrease to < or =10 mL was significantly lower in the study group (10+/-5 versus 26+/-14 hours, p<0.001). The 8-hour drainage decreased to < or =10 mL on the operation day in most patients (88%) in the study group versus mostly on the first (48%) or second (33%) postoperative day in the control group (p<0.001). The total drain amount until 6 AM on the first postoperative day was 0 mL in 43% of patients in the study group and in 7% in the control group (p<0.001). No patient in either group required hematoma evacuation. CONCLUSIONS: Application of the topical matrix sealant at the end of ACDF can significantly reduce the amount of postoperative hemorrhage.
Cervical Vertebrae
;
Diskectomy*
;
Drainage*
;
Female
;
Hematoma
;
Hemostasis
;
Humans
;
Postoperative Hemorrhage
;
Retrospective Studies
;
Spinal Fusion
8.Total Uncinatectomy Revisited: Revision Surgery for Persistent Radiculopathy Following Anterior Cervical Discectomy and Fusion (ACDF).
Wan Kee HONG ; Sung Shik KANG ; Dong Bong LEE ; Ho Joong KIM ; Jemin YI ; Hyeon Guk CHO ; Bong Soon CHANG ; Choon Ki LEE ; Jin S YEOM
The Journal of the Korean Orthopaedic Association 2014;49(5):394-399
We report on a case involving total en bloc uncinatectomy of C7 without removal of the previously inserted cage, performed on a patient with a history of previous anterior cervical discectomy and fusion without uncoforaminotomy at C5-6-7 who had persistent pain radiating to the upper extremity along with progressive weakness. Satisfactory results were achieved. This procedure should be regarded as an effective option for surgical treatment of persistent or recurrent radiculopathy caused by remaining foraminal stenosis following anterior cervical fusion, and we suggest it as a new indication for this procedure.
Constriction, Pathologic
;
Diskectomy*
;
Humans
;
Radiculopathy*
;
Upper Extremity
9.The Clinical Significance of Specialized Intestinal Metaplasia in the Diagnosis of Barrett's Esophagus: Nationwide Prospective Multicenter Study.
Hyun Kyung PARK ; Nayoung KIM ; Byoung Hwan LEE ; Jin Il KIM ; So Young LEE ; Hyun Min CHA ; Hyerang KIM ; Soo Hyun PARK ; Jong Jae PARK ; Sang Woo LEE ; Ki Nam SHIM ; Seong Eun KIM ; Su Jin HONG ; Il Kwun CHUNG ; Gwang Ho BAIK ; Hyun Soo KIM ; Sungkook KIM ; Jae Kyu SEONG ; Geom Seog SEO ; Sam Ryong JEE ; Jeong Seop MOON ; Mee Yon CHO ; Jae Woo KIM ; Moon Gi CHUNG ; Seon Mee PARK ; Byung Kyu NAH ; Su Youn NAM ; Kang Seok SEO ; Byung Sung KO ; Yun Ju JO ; Jae Young JANG ; Byeong Gwan KIM ; Ji Won KIM ; Kyung Sik PARK ; Hyun Shin PARK ; Young Sun KIM ; Seon Hee LIM ; Chung Hyeon KIM ; Min Jung PARK ; Jeong Yoon YIM ; Kyung Ran CHO ; Donghee KIM ; Seun Ja PARK ; Geun Am SONG ; Hyun Jin KIM ; Sang Wook KIM ; Eui Hyeog IM ; Kyoung Soo LEE ; Dong Hyo HYUN ; Hyun Young KIM ; Sun Mi KIM ; Jeong Eun SHIN ; Chan Guk PARK ; Chang Hun YANG ; Soo Heon PARK ; Hyun Chae JUNG ; In Sik CHUNG
The Korean Journal of Helicobacter and Upper Gastrointestinal Research 2012;12(3):171-177
BACKGROUND/AIMS: The meaning of specialized intestinal metaplasia (SIM) in the diagnosis of Barrett's esophagus (BE) is not clear. This study was designed to determine the clinical significance of SIM in the diagnosis of Barrett's esophagus. MATERIALS AND METHODS: Biopsies were taken from 601 subjects with endoscopically suspected columnar-lined esophagus. Under light microscopy with Alcian-blue stain, SIM was identified. Demographic characteristics, gastroesophageal (GE) reflux symptoms and endoscopic findings were compared between the SIM-present group and the SIM-absent group. RESULTS: Among 601 subjects, 184 (30.6%) were confirmed by pathology to have SIM. Age over 40 years (P<0.001) and a medication history of proton pump inhibitor or H2 blocker were found more frequently in the SIM-present group (P=0.01) than in the SIM-absent group. Any of 7 GE reflux symptoms (heartburn, acid regurgitation, chest pain, hoarseness, globus sensation, cough and epigastric soreness) were more frequent in the SIM-present group than SIM-absent group (P<0.001). Specifically, heartburn, chest pain and cough were significantly more common in the SIM-present group. There was no clinically significant difference associated with endoscopic findings or other clinical characteristics. CONCLUSIONS: When subjects with endoscopically suspected BE are analyzed based on the presence or absence of SIM, the SIM-present group was significantly associated with GE reflux symptoms suggestive of frequent GE reflux. However, the presence of SIM did not correlate with endoscopic findings.
Barrett Esophagus
;
Biopsy
;
Chest Pain
;
Cough
;
Esophagus
;
Gastroesophageal Reflux
;
Heartburn
;
Hoarseness
;
Light
;
Metaplasia
;
Microscopy
;
Prospective Studies
;
Proton Pumps
;
Sensation
10.Skin Prick Testing of Patients with Allergic Rhinitis and/or Asthma: a Study in Catholic Medical Center, Korea.
Ji Hyeon SHIN ; Byung Guk KIM ; Jin Hee CHO ; Sung Won KIM ; Beom Jun LEE ; Ye Won KIM ; Soo Whan KIM
Journal of Rhinology 2012;19(1):29-34
BACKGROUND AND OBJECTIVES: Allergic rhinitis is closely related to asthma. The skin prick test is an essential diagnostic tool for allergic disease. We evaluated differences in skin sensitization patterns between groups of patients with allergic rhinitis or asthma, or allergic rhinitis with asthma, in Korea. MATERIALS AND METHODS: From 2000 to 2009, patients with positive results from skin prick testing were divided into three groups: allergic rhinitis (AR), allergic asthma (AS), and allergic rhinitis with allergic asthma (AR+AS). We analyzed demographic data, rhinitis and asthma symptoms, and sensitization patterns. RESULTS: The most common aeroallergen was the house dust mite. The age distributions of the three disease groups differed significantly. Sensitization number, sensitization index, and atopy index were all significantly higher among the AR+AS group than among the AR or AS groups. CONCLUSION: Patients with allergic rhinitis with high numbers of skin sensitizations or intensive positivities should be considered to have concomitant asthma or to be at high risk for asthma development.
Age Distribution
;
Asthma
;
Humans
;
Korea
;
Pyroglyphidae
;
Rhinitis
;
Rhinitis, Allergic, Perennial
;
Skin

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