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Article ; Online: Management of Complications During Video-Assisted Thoracic Surgery Lung Resection and Lymph Node Dissection

Yong Soo Choi

Journal of Chest Surgery, Vol 54, Iss 4, Pp 263-

2021 Volume 265

Abstract: Intraoperative events can occur during video-assisted thoracoscopic surgery (VATS) lobectomy due to unfavorable surgical anatomy, such as dense adhesions or calcifications around the pulmonary arteries. Troubleshooting intraoperative complications is ... ...

Abstract	Intraoperative events can occur during video-assisted thoracoscopic surgery (VATS) lobectomy due to unfavorable surgical anatomy, such as dense adhesions or calcifications around the pulmonary arteries. Troubleshooting intraoperative complications is essential for performing safe and successful VATS pulmonary resection and lymph node dissection. If continuous bleeding occurs or VATS does not proceed despite all measures, conversion to open thoracotomy should not be delayed.
Keywords	video-assisted thoracoscopic surgery ; intraoperative events ; complication ; Medicine (General) ; R5-920
Language	English
Publishing date	2021-08-01T00:00:00Z
Publisher	Korean Society for Thoracic & Cardiovascular Surgery
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Response to

Yong-Soo Choi

Asian Spine Journal, Vol 13, Iss 2, Pp 359-

Obtaining Pentosidine Levels as an Adjunct to Determine a Patient’s Candidacy for Vertebral Stabilization for a Vertebral Compression Fracture

2019 Volume 359

Keywords	Medicine ; R
Language	English
Publishing date	2019-04-01T00:00:00Z
Publisher	Korean Spine Society
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Honey Bee Colonies ( Apis mellifera L.) Perform Orientation Defensiveness That Varies among Bred Lines

Peter Njukang Akongte / Bo-Sun Park / Dong-Won Kim / Yong-Soo Choi

Insects, Vol 14, Iss 546, p

2023 Volume 546

Abstract: Honey bees ( Apis mellifera L.) express complex behavioral patterns (aggressiveness) in defensive mechanisms for their survival. Their phenotypic expression of defensive behavior is influenced by internal and external stimuli. Knowledge of this behavior ... ...

Abstract	Honey bees ( Apis mellifera L.) express complex behavioral patterns (aggressiveness) in defensive mechanisms for their survival. Their phenotypic expression of defensive behavior is influenced by internal and external stimuli. Knowledge of this behavior has recently become increasingly important, though beekeepers are still faced with the challenges of selecting defensive and less-defensive bred lines. Field evaluation of defensive behavior among bred lines of honey bees is required to overcome the challenges. Chemical cues (alarm pheromone and isopentyl acetate mixed with paraffin oil) and physical and visual stimuli (dark leather suede, colony marbling, and suede jiggling) were used to evaluate defensiveness and orientation among five bred lines of honeybee colonies. Our results showed that both chemical assays recruited bees, but the time of recruitment was significantly faster for alarm pheromone. Honeybees’ response to both assays culminated in stings that differed among bred lines for alarm pheromone and paraffin when colonies were marbled. Honeybee orientation defensiveness varied among bred lines and was higher in more defensive bred lines compared to less-defensive bred lines. Our findings suggest that it is crucial to repeatedly evaluate orientation defensiveness at the colony level and among bred lines when selecting breeding colonies.
Keywords	honey bee bred lines ; Apis mellifera L ; controlled breeding ; defensive behavior ; chemical pheromone ; Science ; Q
Subject code	590
Language	English
Publishing date	2023-06-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Beekeeping Genetic Resources and Retrieval of Honey Bee Apis mellifera L. Stock in the Russian Federation

Olga Frunze / Anna Brandorf / Eun-Jin Kang / Yong-Soo Choi

Insects, Vol 12, Iss 684, p

A Review

2021 Volume 684

Abstract: The loss of honey bees has drawn a large amount of attention in various countries. Therefore, the development of efficient methods for recovering honey bee populations has been a priority for beekeepers. Here we present an extended literature review and ... ...

Abstract	The loss of honey bees has drawn a large amount of attention in various countries. Therefore, the development of efficient methods for recovering honey bee populations has been a priority for beekeepers. Here we present an extended literature review and report on personal communications relating to the characterization of the local and bred stock of honey bees in the Russian Federation. New types have been bred from local colonies ( A. mellifera L., A. m. carpatica Avet., A. m. caucasia Gorb.). The main selection traits consist of a strong ability for overwintering, disease resistance and different aptitudes for nectar collection in low and high blooming seasons. These honey bees were certified by several methods: behavioral, morphometric and genetic analysis. We illustrate the practical experience of scientists, beekeepers and breeders in breeding A. mellifera Far East honey bees with Varroa and tracheal mite resistance, which were the initial reasons for breeding the A. mellifera Far Eastern breed by Russian breeders, Russian honey bee in America, the hybrid honey bee in Canada by American breeders, and in China by Chinese beekeepers. The recent achievements of Russian beekeepers may lead to the recovery of beekeeping areas suffering from crossbreeding and losses of honey bee colonies.
Keywords	Russian beekeeping ; honey bee losses ; bee breeding ; Apis mellifera breeds ; bee mite resistance ; Science ; Q
Subject code	590
Language	English
Publishing date	2021-07-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Effects of Clothianidin Pesticide Application on the Strength of Honey Bee Colonies and Stress-Related Genes in the Vicinity of Rice Fields in the Republic of Korea

Minwoong Son / Jisoo Kim / Dongwon Kim / Chang-Hoon Lee / Peter Njukang Akongte / Daegeun Oh / Yong-Soo Choi / Bo-Sun Park

Diversity, Vol 15, Iss 12, p

2023 Volume 1217

Abstract: The honey bee, a crucial organism that provides ecological and economic value to humans, is currently facing threats from various environmental factors including pesticides. Numerous studies have been conducted to demonstrate the risks associated with ... ...

Abstract	The honey bee, a crucial organism that provides ecological and economic value to humans, is currently facing threats from various environmental factors including pesticides. Numerous studies have been conducted to demonstrate the risks associated with neonicotinoid pesticides, but research on their occurrence in actual field conditions has not been identified. Therefore, in this study, we observed changes in honey bee ( Apis mellifera ) colonies located near rice cultivation areas as they progressed beyond the rice pesticide application period. Furthermore, we collected honey bees exposed to the clothianidin and analyzed their stress-related gene expression. The results showed that the foraging behavior of honey bee colonies located near rice cultivation areas did not exhibit significant differences between the treatment sites (Cheongyang and Gimje) and the control site (Wanju) during the experimental period. However, it was observed that the expression levels of stress-related genes in honey bees collected from the treatment group were significantly higher than those in the control. Most of the stress-related genes were associated with detoxification processes in response to pesticides. As a result, pesticide treatment in proximity to rice cultivation areas did not cause direct damage to honey bees but had an indirect impact, suggesting the potential for ongoing chronic damage.
Keywords	neonicotinoids ; honey bees ; rice field ; colony strength ; qRT PCR ; toxicity stress genes ; Biology (General) ; QH301-705.5
Language	English
Publishing date	2023-12-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Surgical Outcomes of Cervical Esophageal Cancer

Yoonseo Lee / Jeonghee Yun / Yeong Jeong Jeon / Junghee Lee / Seong Yong Park / Jong Ho Cho / Hong Kwan Kim / Yong Soo Choi / Young Mog Shim

Journal of Chest Surgery, Vol 57, Iss 1, Pp 62-

A Single- Center Experience

2024 Volume 69

Abstract: Background: Cervical esophageal cancer is a rare malignancy that requires specialized care. While definitive chemoradiation is the standard treatment approach, surgery remains a valuable option for certain patients. This study examined the surgical ... ...

Abstract	Background: Cervical esophageal cancer is a rare malignancy that requires specialized care. While definitive chemoradiation is the standard treatment approach, surgery remains a valuable option for certain patients. This study examined the surgical outcomes of patients with cervical esophageal cancer. Methods: The study involved a retrospective review and analysis of 24 patients with cervical esophageal cancer. These patients underwent surgical resection between September 1994 and December 2018. Results: The mean age of the patients was 61.0±10.2 years, and 22 (91.7%) of them were male. Furthermore, 21 patients (87.5%) had T3 or T4 tumors, and 11 (45.8%) exhibited lymph node metastasis. Gastric pull-up with esophagectomy was performed for 19 patients (79.2%), while 5 (20.8%) underwent free jejunal graft with cervical esophagectomy. The 30-day operative mortality rate was 8.3%. During the follow-up period, complications included leakage at the anastomotic site in 9 cases (37.5%) and graft necrosis of the gastric conduit in 1 case. Progression to oral feeding was achieved in 20 patients (83.3%). Fifteen patients (62.5%) displayed tumor recurrence. The median time from surgery to recurrence was 10.5 months, and the 1-year recurrence rate was 73.3%. The 1-year and 3-year survival rates were 75% and 33.3%, respectively, with a median survival period of 17 months. Conclusion: Patients with cervical esophageal cancer who underwent surgical resection faced unfavorable outcomes and relatively poor survival. The selection of cases and decision to proceed with surgery should be made cautiously, considering the risk of severe complications.
Keywords	cervical esophageal cancer ; gastric pull-up ; free jejunal graft ; Medicine (General) ; R5-920
Subject code	610 ; 616
Language	English
Publishing date	2024-01-01T00:00:00Z
Publisher	Korean Society for Thoracic & Cardiovascular Surgery
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Comparison of surgical outcomes between 3D and 2D VATS lobectomy for clinical stage I lung cancer

Tae Ho Kim / Tae Hee Hong / Yong Soo Choi

Precision and Future Medicine, Vol 4, Iss 2, Pp 69-

2020 Volume 74

Abstract: Purpose The use of three-dimensional (3D) thoracoscope provides improved depth perception and accuracy in video-assisted thoracoscopic surgery (VATS). This study aimed to compare the surgical outcomes between two-dimensional (2D) and 3D VATS lobectomy ... ...

Abstract	Purpose The use of three-dimensional (3D) thoracoscope provides improved depth perception and accuracy in video-assisted thoracoscopic surgery (VATS). This study aimed to compare the surgical outcomes between two-dimensional (2D) and 3D VATS lobectomy for stage I lung cancer. Methods From January 2013 to May 2018, 354 patients underwent VATS lobectomy and mediastinal lymph node dissection for clinical stage I lung cancer. The 3D VATS system was introduced in July 2016 in our center. A total of 182 patients underwent 2D VATS lobectomy from January 2013 to June 2016, and 172 patients underwent 3D VATS lobectomy from July 2016 to May 2018. Results The thoracotomy conversion rate was lower (1.2% vs. 6.4%, P= 0.011) in the 3D VATS group than in the 2D VATS group. Operation time (mean: 119.0 minutes vs. 151.4 minutes, P< 0.001), operative blood loss (median: 100 mL vs. 150 mL, P< 0.001), and length of hospital stay after surgery (median: 5 days vs. 6 days, P< 0.001) were significantly lower in the 3D VATS group than in the 2D VATS group. A higher number of lymph nodes was resected in 3D VATS (mean: 15.9 vs. 13.8, P= 0.006). No significant difference was observed between 3D and 2D VATS in terms of operative complications (Clavien-Dindo classification grade ≥ 1; 14.7% vs. 14.6%, P= 0.322). None of the patients died postoperatively. Conclusion Our retrospective data showed that the 3D thoracoscope had better surgical outcomes than 2D thoracoscope for VATS lobectomy in patients with clinical stage I lung cancer.
Keywords	lung neoplasms ; thoracic surgery ; video-assisted ; three dimensional ; Medicine ; R
Subject code	610
Language	English
Publishing date	2020-06-01T00:00:00Z
Publisher	Sungkyunkwan University School of Medi
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Comparison of oncological outcomes of single-port versus multi-port video-assisted thoracoscopic surgery for non-small-cell lung cancer

Dong Woog Yoon / Yong Soo Choi / Kiick Sung / Hojoong Kim

Precision and Future Medicine, Vol 4, Iss 2, Pp 60-

a propensity-matched analysis

2020 Volume 68

Abstract: Purpose There are few reports about oncological outcomes of single-port (SP) video-assisted thoracoscopic surgery (VATS) lobectomy, represented by overall survival (OS), disease-free survival (DFS), and adequacy of lymph node retrieval. We designed this ... ...

Abstract	Purpose There are few reports about oncological outcomes of single-port (SP) video-assisted thoracoscopic surgery (VATS) lobectomy, represented by overall survival (OS), disease-free survival (DFS), and adequacy of lymph node retrieval. We designed this study to analyze the oncological outcomes of SP versus multi-port (MP) VATS lobectomy for non-small-cell lung cancer (NSCLC). Methods From January 2012 to February 2014, 243 consecutive patients undergoing VATS lobectomy for NSCLC were enrolled. Intention-to-treat analysis with propensity score matching was conducted to compare the oncological outcomes between SP and MP VATS lobectomy for NSCLC. Results Seventy-three patients underwent SP VATS lobectomy, and 154 patients underwent conventional MP VATS lobectomy. Propensity score matching created 63 patients in each group. The median follow-up was 65.8 and 72.5 months in the SP and MP VATS groups, respectively. No significant differences were observed in the number of resected lymph nodes (14.6 vs. 16.1, P= 0.329), number of resected mediastinal lymph node stations (2.3 vs. 2.5, P= 0.091), and postoperative complications. The OS at 5 years was 89.9% and 86.9% in the SP and MP VATS groups, respectively (log-rank test, P= 0.344). The DFS at 5 years was 75.1% and 75.7% in the SP and MP VATS groups, respectively (log-rank test, P= 0.899). Conclusion There were no significant differences in oncological outcomes of SP VATS lobectomy for NSCLC and those of MP VATS lobectomy.
Keywords	carcinoma ; non-small-cell lung ; survival rate ; thoracic surgery ; video-assisted ; Medicine ; R
Subject code	610
Language	English
Publishing date	2020-06-01T00:00:00Z
Publisher	Sungkyunkwan University School of Medi
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Feasibility of video-assisted thoracoscopic sleeve lobectomy for non-small cell lung cancer

Yeong Jeong Jeon / Jeonghee Yun / Yong Soo Choi / Min Soo Kim / Jae Won Choi

Precision and Future Medicine, Vol 5, Iss 1, Pp 41-

2021 Volume 47

Abstract: Purpose Sleeve lobectomy is a safe and effective surgical procedure for centrally located non-small cell lung cancer (NSCLC). However, the use of video-assisted thoracoscopic surgery (VATS) on bronchial sleeve resection is still controversial due to a ... ...

Abstract	Purpose Sleeve lobectomy is a safe and effective surgical procedure for centrally located non-small cell lung cancer (NSCLC). However, the use of video-assisted thoracoscopic surgery (VATS) on bronchial sleeve resection is still controversial due to a lack of evidence. In this study, we describe our experience on VATS sleeve lobectomy and evaluate its feasibility for treating NSCLC. Methods From January 2010 to May 2019, VATS sleeve lobectomy was attempted in 19 patients with NSCLC at Samsung Medical Center. Their baseline characteristics, perioperative data, and survival outcome were collected and analyzed retrospectively. Results Of the 19 patients, 10 underwent VATS sleeve lobectomy successfully. The mean age of the patients who underwent successful VATS was 53.5± 15.8 years, and all the patients were men. Seven patients (70%) had squamous cell carcinoma. The mean postoperative chest tube drainage duration was 5.3± 2.3 days, and the median hospital stay duration was 7 days (interquartile range, 6.25 to 11.5 days). Among the patients who underwent successful VATS, two had postoperative bronchial stenosis: One patient underwent complete pneumonectomy, and one patient was observed without any intervention. During the median follow-up duration of 3.5 years, two patients with squamous cell carcinoma who underwent successful VATS died. Of these, one died 70 days postoperatively because of acute respiratory distress syndrome and one died 18 months postoperatively from an unknown cause. No patient had locoregional recurrence. Conclusion VATS sleeve lobectomy is a feasible surgical procedure for centrally located tumors without vascular invasion.
Keywords	thoracic surgery ; video-assisted ; sleeve lobectomy ; carcinoma ; non-small-cell lung ; Medicine ; R
Subject code	616 ; 610
Language	English
Publishing date	2021-03-01T00:00:00Z
Publisher	Sungkyunkwan University School of Medi
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Surgical Strategy for Primary Colorectal Carcinoma and Synchronous Pulmonary Metastasis Resection

Tae Yeon Kim / Jong Ho Cho / Yong Soo Choi / Hong Kwan Kim / Jhin Gook Kim / Young Mog Shim

Journal of Chest Surgery, Vol 55, Iss 1, Pp 37-

2022 Volume 43

Abstract: Background: The surgical strategy for single-stage resection of primary colorectal cancer (CRC) and synchronous pulmonary metastases remains a matter of debate. Methods: Perioperative data of patients who underwent single-stage resection of primary CRC ... ...

Abstract	Background: The surgical strategy for single-stage resection of primary colorectal cancer (CRC) and synchronous pulmonary metastases remains a matter of debate. Methods: Perioperative data of patients who underwent single-stage resection of primary CRC and synchronous pulmonary metastases were compared to those of patients who underwent 2-stage resections. The demographic data, number of metastases, type of pulmonary and colorectal resections, operation time, blood loss, postoperative complications, morbidities, mortality, medical costs, and length of hospital stay were analyzed. Results: Twenty-two patients underwent single-stage resection of primary CRC and pulmonary metastases, while 27 patients underwent 2-stage resection. Tumor size and the number of pulmonary metastases were not significantly different between the 2 groups. The extent of pulmonary metastasectomy and abdominal procedures were similar in both groups, as was the thoracic surgical approach (video-assisted thoracic surgery vs. thoracotomy). However, open laparotomy was performed more frequently in the 2-stage group than in the single-stage group (p=0.045), which also had a longer total anesthetic time (p=0.013). The operation time, medical costs, estimated blood loss, complication rates, and severity were similar in both groups, but the length of hospital stay was shorter in the single- stage group (p<0.001). Conclusion: Single-stage colorectal and pulmonary resection shortened the overall hospital stay, with no significant changes in operation time, medical costs, hospital mortality, and morbidity. Therefore, single-stage resection could be a good surgical strategy in selected patients.
Keywords	colorectal neoplasms ; metastasectomy ; Medicine (General) ; R5-920
Subject code	610
Language	English
Publishing date	2022-02-01T00:00:00Z
Publisher	Korean Society for Thoracic & Cardiovascular Surgery
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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