• Journal of Gastric Cancer
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• 제23권3호
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• pp.462-475
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• 2023

Purpose: This study aimed to analyze the incidence and risk factors of complications following gastric cancer surgery in Korea and to compare the correlation between hospital complications based on the annual number of gastrectomies performed. Materials and Methods: A retrospective analysis was conducted using data from 12,244 patients from 64 Korean institutions. Complications were classified using the Clavien-Dindo classification (CDC). Univariate and multivariate analyses were performed to identify the risk factors for severe complications. Results: Postoperative complications occurred in 14% of the patients, severe complications (CDC IIIa or higher) in 4.9%, and postoperative death in 0.2%. The study found that age, stage, American Society of Anesthesiologists (ASA) score, Eastern Cooperative Oncology Group (ECOG) score, hospital stay, approach methods, and extent of gastric resection showed statistically significant differences depending on hospital volumes (P<0.05). In the univariate analysis, patient age, comorbidity, ASA score, ECOG score, approach methods, extent of gastric resection, tumor-node-metastasis (TNM) stage, and hospital volume were significant risk factors for severe complications. However, only age, sex, ASA score, ECOG score, extent of gastric resection, and TNM stage were statistically significant in the multivariate analysis (P<0.05). Hospital volume was not a significant risk factor in the multivariate analysis (P=0.152). Conclusions: Hospital volume was not a significant risk factor for complications after gastric cancer surgery. The differences in the frequencies of complications based on hospital volumes may be attributed to larger hospitals treating patients with younger age, lower ASA scores, better general conditions, and earlier TNM stages.

• Advances in nano research
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• 제15권5호
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• pp.451-466
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• 2023

Gastrointestinal cancer (GC) is a prevalent malignant tumor of the digestive system that poses a severe health risk to humans. Due to the specific organ structure of the gastrointestinal system, both endoscopic and MRI diagnoses of GIC have limited sensitivity. The primary factors influencing curative efficacy in GIC patients are drug inefficacy and high recurrence rates in surgical and pharmacological therapy. Due to its unique optical features, good biocompatibility, surface effects, and small size effects, nanotechnology is a developing and advanced area of study for the detection and treatment of cancer. Because of its deep location and complex surgery, diagnosing and treating gastrointestinal cancer is very difficult. The early diagnosis and urgent treatment of gastrointestinal illness are enabled by nanotechnology. As diagnostic and therapeutic tools, nanoparticles directly target tumor cells, allowing their detection and removal. XGBoost was used as a classification method known for achieving numerous winning solutions in data analysis competitions, to capture nonlinear relations among many input variables and outcomes using the boosting approach to machine learning. The research sample included 300 GC patients, comprising 190 males (72.2% of the sample) and 110 women (27.8%). Using convolutional neural networks (CNN) and artificial neural networks (ANN)-EXtreme Gradient Boosting (XGBoost), the patients mean± SD age was 50.42 ± 13.06. High-risk behaviors (P = 0.070), age at diagnosis (P = 0.037), distant metastasis (P = 0.004), and tumor stage (P = 0.015) were shown to have a statistically significant link with GC patient survival. AUC was 0.92, sensitivity was 81.5%, specificity was 90.5%, and accuracy was 84.7 when analyzing stomach picture.

• 대한의용생체공학회:의공학회지
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• 제44권6호
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• pp.414-427
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• 2023

Implantable bioabsorbable combination products undergo inherent degradation and systemic absorption within the physiological environment, thereby streamlining the therapeutic regimen and obviating the imperative for invasive extraction procedures. This inherent property not only enhances patient convenience and therapeutic efficacy but also underpins a paradigm of support characterized by heightened safety parameters. Within the regulatory landscapes of Korea, the United States, and Europe, implantable bioabsorbable combination products are meticulously classified into distinct categories, either as pharmaceutical implants or as implantable medical devices, depending on their primary mode of action. This scholarly investigation systematically examines the regulatory frameworks governing implantable bioabsorbable combination products in South Korea, the United States, and Europe. Notable discrepancies across national jurisdictions emerge concerning regulatory specifics, including terminology, product classification, and product name associated with these products. The conspicuous absence of standardized approval regulations presents a formidable barrier to the commercialization of these advanced medical devices. This academic discourse passionately emphasizes the critical need for formulating and implementing a sophisticated regulatory framework capable of streamlining the product approval process, thereby paving the way for a seamless path to commercializing implantable bioabsorbable combination products.

• 대한방사선기술학회지:방사선기술과학
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• 제46권6호
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• pp.553-560
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• 2023

This study aimed to understand the correlations of prevalence and relevant variables of cholelithiasis with a group of cirrhosis patients and a control group targeting the subjects who received the abdomen ultrasonography from K university hospital in Daejeon Metropolitan City from January 1^st 2019 to December 31^st. And the results are as follows. First, the group of cirrhosis patients showed relatively higher prevalence of cholelithiasis than the control group as ordinary people, which showed statistically significant differences. Second, in the control group, there were statistically significant differences in the occurrence of cholelithiasis with respect to age. Conversely, in the cirrhosis patient, there was no statistically significant association observed with age; nonetheless, age itself exhibited statistical significance. Third, according to sex, the prevalence was not statistically significant in both group of cirrhosis patients and control group. Fourth, in each degree and cause of subdivided cirrhosis, the correlation was only shown in each degree. In the results of this study, the cirrhosis patients showed high correlation with the incidence of cholelithiasis, and the control group showed the high correlation with the incidence of cholelithiasis according to age.

• Clinics in Shoulder and Elbow
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• 제27권1호
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• pp.59-71
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• 2024

Background: Restoration of external (ER) and internal rotation (IR) after Grammont-style reverse shoulder arthroplasty (RSA) is often unreliable. The purpose of this systematic review was to evaluate the influence of RSA medio-lateral offset and subscapularis repair on axial rotation after RSA. Methods: We conducted a systematic review of studies evaluating axial rotation (ER, IR, or both) after RSA with a defined implant design. Medio-lateral implant classification was adopted from Werthel et al. Meta-analysis was conducted using a random-effects model. Results: Thirty-two studies reporting 2,233 RSAs were included (mean patient age, 72.5 years; follow-up, 43 months; 64% female). The subscapularis was repaired in 91% (n=2,032) of shoulders and did not differ based on global implant lateralization (91% for both, P=0.602). On meta-analysis, globally lateralized implants achieved greater postoperative ER (40° [36°-44°] vs. 27° [22°-32°], P<0.001) and postoperative improvement in ER (20° [15°-26°] vs. 10° [5°-15°], P<0.001). Lateralized implants with subscapularis repair or medialized implants without subscapularis repair had significantly greater postoperative ER and postoperative improvement in ER compared to globally medialized implants with subscapularis repair (P<0.001 for both). Mean postoperative IR was reported in 56% (n=18) of studies and achieved the minimum necessary IR in 51% of lateralized (n=325, 5 cohorts) versus 36% (n=177, 5 cohorts) of medialized implants. Conclusions: Lateralized RSA produces superior axial rotation compared to medialized RSA. Lateralized RSA with subscapularis repair and medialized RSA without subscapularis repair provide greater axial rotation compared to medialized RSA with subscapularis repair. Level of evidence: 2A.

• Archives of Plastic Surgery
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• 제50권6호
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• pp.550-556
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• 2023

Blunt breast trauma occurs in 2% of blunt chest injuries. This study aimed to evaluate the evidence on breast reconstruction after blunt trauma associated with the use of a seat belt. Also, we describe the first case of breast reconstruction using the Ribeiro technique. In November 2022, a systematic search of MEDLINE, EMBASE, and Google Scholar databases was conducted. The literature was screened independently by two reviewers, and the data was extracted. Our search terms included breast, mammoplasty, blunt injury, and seat belts. In addition, we present the case of a woman with a left breast deformity and her reconstruction using the inferior Ribeiro flap technique. Six articles were included. All included studies were published between 2010 and 2021. The studies recruited seven patients. According to the Teo and Song classification, seven class 2b cases were reported. In five cases a breast reduction was performed in the deformed breast with different types of pedicles (three superomedial flaps, one lower flap, one superior flap). Only one case presented complications. The case here presented was a type 2b breast deformity in which the lower Ribeiro pedicle was used successfully without complications during follow-up. Until now there has been no consensus on reconstructive treatment due to the rarity of this entity. However, we must consider surgical treatment individually for each patient. We believe that the Ribeiro technique is a feasible and safe alternative in the treatment of posttraumatic breast deformities, offering very good long-term results.

• 한국산학기술학회논문지
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• 제15권10호
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• pp.6158-6167
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• 2014

본 연구는 말레이시아 병원과 유사규모의 한국 병원을 대상으로 보건정보관리자(HIM)의 새로운 역할 7가지에 대한 직무를 비교연구하기 위한 것이다. 말레이시아 병원은 272병상 규모의 종합병원을 선정하였다. 말레이시아는 해당병원을 연구자가 직접 방문하여 담당자 면담 등을 실시하였고 기간은 2013년 7월 22일부터 8월 2일까지 약 2주간이었다. 국내병원은 말레이시아와 병상규모가 유사한 병상대의 종합병원 총 13곳을 대상으로 유선 상 질의응답을 통해 확인하였다. HIM의 새로운 7가지 역할에서는 Health information manager로서 말레이시아 병원은 ICT가, 한국 병원은 조사대상 병원의 30.8%가 역할을 수행하고 있었다. Clinical data specialist역할 관련 classification of disease & procedure는 양국 모두 실시하고 있었고 tumor registry은 말레이시아 병원은 담당하고 있었던 반면 한국 병원에서는 15.4%만이 담당하고 있었다. 퇴원환자 통계는 말레이시아에서는 담당하지 않았고 한국은 76.9%에서 담당하고 있었다. 특수질환 등록업무는 한국은 22.1%에서 담당한 반면 말레이시아는 전체 법정전염병 등록 뿐 아니라 병원출생아와 사망자에 대한 정보등록까지 실시하고 있었다. 그 외 Patient Information Coordinator, Data Quality Manager, Document and Repository Manager, Research and Decision Support Analyst 역할은 양국 모두에서 실시하고 있지 않았다. HIM의 새로운 역할은 한국 중소병원에서 실천률이 낮은 편이다. 따라서 한국전체에서 HIM 역할이 확고히 정립되려면 중소규모 병원까지도 그 역할을 잘 수행할 수 있도록 해당 협회차원의 지속적인 교육, 지원을 통해 일부 대형병원뿐 아니라 중소병원을 포함한 전체 병원에서 역할이 명확화 될 수 있는 노력이 필요하다. 특히 특수질환 등 등록업무는 말레이시아 병원이 한국 병원에 비해 역할이 잘 정립되어 있어 이를 벤치마킹하여 업무를 확대하는 방안도 모색할 필요가 있다고 사료된다.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제9권1호
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• pp.39-47
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• 2006

목 적: 임상적, 방사선과적인 소견을 근거로 소아장중첩증의 새로운 분류를 제안하고자 하였다. 방 법: 2003년 3월부터 2005년 7월까지 장중첩증으로 진단된 88예를 대상으로 의무 기록 정보를 분석하였다. 분류를 위해 환자의 나이, 장중첩증의 위치, 증상의 유무, 치료 방법, 비후된 장간막 림프절의 유무, 초음파 소견 이상의 6가지 요소를 후향적으로 검토하였다. 결 과: 1) 장중첩증의 발병 연령에 따라 신생아형 1예(1.1%)와 소아형 87예(98.9%)로 나눌 수 있었다. 2) 소아형은 발생 위치에 따라 소장형 14예(16.1%)와 소장-대장형 73예(83.9%)로 분류되었다. 소장형은 증상이 있는 군 12예와 증상이 없는 군 2예로, 증상이 있는 군은 일과성 장중첩증 8예(66.7%), 수술군 3예(25.0%), 관장 정복 1예(8.3%)였으며, 무증상 군은 복부 컴퓨터 단층 촬영에서 우연히 관찰된 2예였다. 소장-대장형은 수술군 19예(26.0%)와 비수술군 54예(74.0%)로 분류되었다. 3) 일과성 소장형 장중첩증 8예를 수술을 받은 소장형 6예, 정복된 소장-대장형 54예, 수술을 받은 소장-대장형 19예와 비교 분석한 결과, 일과성 소장형 장중첩증의 연령은 $38.0{\pm}22.9$개월로 다른 형태에 비해 의미 있게 높았고(p=0.003), 혈변은 전체 8예 중 1예(12.5%)로 의미 있게 낮았으며(p=0.022), 기면은 모든 예에서 관찰되지 않았다. 단순 복부 엑스선 사진상 일과성 소장형 장중첩증에서 복부 종물(p=0.015)과 기계적 장폐쇄증(p=0.001)은 상대적으로 낮게 관찰되었으며, 초음파상에서 종물의 크기는 일과성 소장형에서 $20.8{\pm}2.7mm$로 의미 있게 작은 크기를 보였다(p=0.0001). 4) 비후된 장간막 림프절 유무와 치료 방법 및 동반 질환과의 관련성 연구에서는 의미 있는 차이를 보이지 않았다. 5) 초음파상 과녁 모양인 경우 11예 중 7예(63.6%)가 일과성 소장형 장중첩증이었고, 나머지는 모두 정복이 가능하였으며 4예 중 3예는 소장-대장형이었으나, 1예는 회장-회장-대장형이었다. 도넛 모양인 23예 중 저에코성 외곽 테두리의 두께가 8.9 mm 이상인 8예(34.8%) 모두에서 수술을 요하였고, 8.5 mm 미만인 15예(65.2%) 모두는 정복이 가능하였다. 결 론: 소아 장중첩증은 영상학적인 소견과 임상적 특성에 따라 새롭게 분류될 수 있으며, 각 유형에 따라 적절한 치료를 유도하는데 중요한 지침이 될 수 있을 것으로 판단된다.

• 대한한의학방제학회지
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• 제15권1호
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• pp.49-105
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• 2007

Objectives : Select and analyze the case record of dyspnea and wheezing asthma recorded in Xu Ming Yi Lei An that is the most abundant and wide in contents in existing case records that are systematic, comprehending relatively modern Traditional Chinese Medicine to secure more deep and objective basis of Traditional Chinese Medicine approach for dyspnea and wheezing asthma to analyze and review possibility for clinical application in this study. Methods: The study was conducted with the case records of dyspnea and wheezing asthma in whole Xu Ming Yi Lei An. Pattern identify and classify selected case records and again classified with deficiency syndrome and excess syndrome. Also analyzed prescriptions and herbs used in the case records. Nature of herbs and properties and flavors that were used in the case records were classified and frequency of each nature of herbs were analyzed. Applicable case records were interpreted and suggested prescriptions, pulse feelings, pattern classification were analyzed and described. Results : Among the 5254 case records stated on the complete collection, it is researched that there are 63 case records for the symptom complex of dyspnea as 1.2% of the whole case records, and the case records on the symptom complex of wheezing asthma are 14 as the 0.27% of the total examples. 63 case record examples related with symptom complex of dyspnea were pattern identified and classified. As a result, deficiency syndrome of the Kidney(33 %), deficiency syndrome of the Spleen(26.0%), Wind-Cold(12.3%), phlegm turbidity(12.3%), Heat in the Lung(8.2%), asthenia of the Lung(8.2%) were investigated as above order. 14 case record examples related with wheezing asthma were pattern identified and classified. As a result, phlegm-Heat(26.3%), upper excess and lower deficiency(26.3%), external affections Wind-Cold(15.8%), Dampness-phlegm(10.5%), Lung asthenia(10.5%), Cold phlegm(5.3%), mutual deficiency and detriment of Heart and Kidneys(5.3%) were investigated as above order. Symptom complex of dyspnea has 67.1% of deficiency syndrome, 32.9% of excess syndrome resulting more deficiency syndrome than excess syndrome. Symptom complex of wheezing asthma has 42.1 % of deficiency syndrome and 57.9% of excess syndrome resulting more excess syndrome than deficiency syndrome. In case of symptom complex of dyspnea prescription used in the case record, the order of frequency is as following. Palmijihwang-tang, Bojung-ikgitang, Yungmijihwang-tang, Ijintang, Sojaganggitang, Igongsan. In case of symptom complex of wheezing asthma prescription in the case record, Yungmijihwang-tang, Ohotang, Dodamtang were mostly used. Herbs used in case records of symptom complex of dyspnea are Ginseng Radix, Poria, Glycyrrhizae Radix, Aconiti Iateralis Preparata Radix, Atractylodis Macrocephalae Rhizoma, Dioscoreae Rhizoma, Angelicae Gigantis Radix, Rehmanniae Radix Preparat, Pinelliae Rhizoma, Zingiberis Rhizoma Recens are mostly used. Nature of herb properties used for symptom complex of dyspnea and symptom complex of wheezing asthma are herbs that are warm properties. When the symptom complex of dyspnea and the symptom complex of wheezing asthma were treated. if the patient felt tenderness at Pyesu, doctors conducted pricking blood around the opposite Pyesu or Sipseon acupoint. when the patient didn't have tenderness at Pyesu by soft press, pricking blood was performed both sidees, right and left Pyesu. In case of the treatment of symptom complex of dyspnea and symptom complex of wheezing asthma, when they got treatment, when the symptom complex of disease is severe, a doctor cauterized the opposite Pyesu while the other Pyesu felt tenderness, and decided how the above treatment is performed whether the degree of the symptom compolex of disease is severe or not. In case of the treatment of symptom complex of dyspnea and symptom complex of wheezing asthma, if the person felt tenderness at Pyesu and is caught by the Wind-Cold pathogen, slight acupuncture is treated at relevant Pyesu with Fire needling. When patient with symptom complex of dyspnea and symptom complex of wheezing asthma cannot hawk sputum up from the oral and laryngopharynx, suction method is treated. Conclusion : With this study, actual traditional and clinical pattern identification form and characteristics of symptom complex of dyspnea and symptom complex of wheezing asthma were recognized. Modern case report utilizing in clinical application need to be secured and an incurable disease asthma need to be diagnosed and improvement for treatments have to be searched through other case records.

• 대한관절경학회지
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• 제10권1호
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• pp.70-76
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• 2006

목적: 금속 봉합 나사못을 이용한 견관절 습관성 전방 탈구 수술 후, 여러 원인에 의하여 발생한 금속 봉합 나사 못 돌출 합병증을 보고하고 발생 원인, 임상 양상 및 관절경적 치료에 대하여 알아보고자 하였다. 대상 및 방법: 견관절 습관성 전방 탈구로 봉합 나사못을 이용한 Bankart 수술을 시행 받은 후 운동시 들리는 관절내 마찰음 및 통증 또는 불안정성을 호소하며 내원하여 관절경 재수술을 시행받은 환자 5명을 대상으로 하였다. 처음 수술 이후 재수술까지의 평균 기간은 5.2개월이었다. 환자들은 관절경 재수술시 봉합 나사못의 돌출이 확인되었으며 관절경 술식을 이용하여 돌출 봉합 나사못을 제거하였다. 결과: 주 증상은 4명에서 통증을 동반한 관절내 마찰음이었으며 이 마찰음은 외전 및 외회전시 분명하게 들렸다. 1명은 통증과 함께 견관절 불안정성을 호소하였다. 견관절 운동 범위는 외회전만 약간 감소되었을 뿐 거의 정상 소견을 나타내었다. 돌출되었던 봉합 나사못의 위치는 5시 방향 1명, 4시 방향 2명, 2시 및 3시 방향 각각 1명씩이었다. 그 중 2명은 전방 관절와연에서 5 mm 정도 내측 관절면 위에 위치하였다. 나머지 3명은 올바른 위치에 삽입되어 있었으나 나사못 주변의 연골 마모 및 골소실이 관찰되었다. 재수술시 5명 모두 상완골두에 연골 손상이 발견되었으며 1명은 관절와에도 연골 결손이 동반되었다. 재수술 후 2년째 추시 결과 재탈구나 불안정성을 보이는 환자는 없었으며 통증에 대한 VAS 점수는 수술 전 3.4에서 수술 후 1.2로 감소되었다. Constant 점수는 수술 전 65점에서 수술 후 89점으로 증가하였으며 ASES 점수도 수술 전 67점에서 수술후 88점으로 증가하였다. 결론: 봉합 나사못 합병증으로 인한 증상은 불안정성을 동반하지 않는 경우가 많으며 대부분 재활 운동 시점부터 증상이 나타나지만 정상적인 수술 후 통증과 구분이 어려운 경우가 많다 그러나 돌출된 봉합 나사못은 상완골두 연골의 파괴를 유발하는 심각한 합병증을 초래하므로 봉합 나사못 돌출이 의심되면 관절경을 통하여 관절내의 변화를 관찰하며 돌출된 봉합 나사못을 다시 삽입하거나 제거하여야 한다. 봉합 나사못 제거에 본 수술 방법을 사용하면 용이하게 봉합 나사못 제거가 가능하리라 사료된다.