1.Surgical Decision for Elderly Spine Deformity Patient
Yong Chan KIM ; Hyung Suk JUH ; Keunho LEE
The Journal of the Korean Orthopaedic Association 2019;54(1):1-8
Globally, the elderly population is increasing rapidly, which means that the number of deformity correction operations for elderly spine deformity patient has increased. On the other hand, for aged patients with deformity correction operation, preoperative considerations to reduce the complications and predict a good clinical outcome are not completely understood. First, medical comorbidity needs to be evaluated preoperatively with the Cumulative Illness Rating Scale for Geriatrics or the Charlson Comorbidity Index scores. Medical comorbidities are associated with the postoperative complication rate. Managing these comorbidities preoperatively decreases the complications after a spine deformity correction operation. Second, bone densitometry need to be checked for osteoporosis. Many surgical techniques have been introduced to prevent the complications associated with posterior instrumentation for osteoporosis patients. The preoperative use of an osteogenesis inducing agent
Aged
;
Comorbidity
;
Compensation and Redress
;
Congenital Abnormalities
;
Densitometry
;
Geriatrics
;
Hand
;
Humans
;
Lower Extremity
;
Osteogenesis
;
Osteoporosis
;
Pelvis
;
Postoperative Complications
;
Posture
;
Spine
;
Teriparatide
2.Comparison of Parathyroid Gland Preservation Rates between Open and Endoscopic Total Thyroidectomy for Papillary Thyroid Carcinomas.
Jungbin KIM ; Inseok PARK ; Hyunjin CHO ; Geumhee GWAK ; Keunho YANG ; Byungnoe BAE ; Kiwhan KIM ; Sehwan HAN
Korean Journal of Endocrine Surgery 2012;12(2):98-101
PURPOSE: Incidental parathyroidectomy is the most common and unexpected consequence of a total thyroidectomy. It can cause hypocalcemia symptoms such as muscle cramping and even seizures. We conducted this study to compare several factors including the preservation rate of parathyroid glands during both a bilateral axillo-breast approach endoscopic thyroidectomy (BABA) and a conventional open thyroidectomy (CT) for papillary thyroid carcinomas. METHODS: We retrospectively reviewed the medical records of 299 papillary thyroid cancer patients who had a total thyroidectomy between January 2008 and December 2011. We grouped the patients into two groups: BABA (n=70) and CT (n=229). We analyzed age, tumor size, operation time, the number of preserved and removed parathyroid glands, amount and duration of seroma drainage, pain score, hypocalcemia symptoms, and serum total calcium level in both the BABA and CT groups. RESULTS: We observed a younger age (under 45 years old) (P=0.000), smaller tumor size (P=0.000), longer operation time (P=0.000), larger amount of drainage (P=0.000), longer duration of drainage (P=0.007), and larger pain score (P=0.000) in the BABA group. Of the 70 patients that received an endoscopic thyroidectomy, we preserved all four parathyroid glands in 56 patients (78.6%). Of the 229 patients that received an open thyroidectomy, we preserved all four parathyroid glands in 141 patients (61.6%, P=0.004). CONCLUSION: BABA results in more extensive tissue damage over a longer period of time than CT. However, BABA was an excellent method for preserving parathyroid glands when compared with CT for thyroid carcinoma. Thus, it seems to be feasible performing BABA when it matches the indications.
Calcium
;
Drainage
;
Humans
;
Hypocalcemia
;
Hypoparathyroidism
;
Medical Records
;
Methods
;
Muscle Cramp
;
Parathyroid Glands*
;
Parathyroidectomy
;
Retrospective Studies
;
Seizures
;
Seroma
;
Thyroid Gland*
;
Thyroid Neoplasms*
;
Thyroidectomy*
3.Prognostic Factors Affecting Disease-Free Survival and Overall Survival in T4 Colon Cancer
Taeyeong EOM ; Yujin LEE ; Jungbin KIM ; Inseok PARK ; Geumhee GWAK ; Hyunjin CHO ; Keunho YANG ; Kiwhan KIM ; Byung-Noe BAE
Annals of Coloproctology 2021;37(4):259-265
Purpose:
It is known that as the T stage of a carcinoma progresses, the prognosis becomes poorer. However, there are few studies about factors that affect the prognosis of T4 advanced colon cancer. This study aimed to identify the prognostic factors associated with disease-free survival (DFS) and overall survival (OS) in T4 colon cancer.
Methods:
Patients diagnosed with stage T4 on histopathology after undergoing curative surgery for colon cancer between March 2009 and March 2018 were retrospectively analyzed for factors related to postoperative survival. Primary outcomes were DFS and OS.
Results:
Eighty-two patients were included in the study. DFS and OS of the pathologic (p) T4b group were not inferior to that of the pT4a group. Multivariate analysis showed that differentiation (hazard ratio [HR], 4.994; P = 0.005), and laparoscopic surgery (HR, 0.323; P = 0.008) were significant prognostic factors for DFS, while differentiation (HR, 7.904; P ≤ 0.001) and chemotherapy (HR, 0.344; P = 0.038) were significant prognostic factors for OS.
Conclusion
Tumor differentiation, laparoscopic surgery, and adjuvant chemotherapy were found to be significant prognostic factors in patients with T4 colon cancer. Adjuvant chemotherapy and curative resections by laparoscopy might improve the prognosis in these patients.
4.Prognostic Factors Affecting Disease-Free Survival and Overall Survival in T4 Colon Cancer
Taeyeong EOM ; Yujin LEE ; Jungbin KIM ; Inseok PARK ; Geumhee GWAK ; Hyunjin CHO ; Keunho YANG ; Kiwhan KIM ; Byung-Noe BAE
Annals of Coloproctology 2021;37(4):259-265
Purpose:
It is known that as the T stage of a carcinoma progresses, the prognosis becomes poorer. However, there are few studies about factors that affect the prognosis of T4 advanced colon cancer. This study aimed to identify the prognostic factors associated with disease-free survival (DFS) and overall survival (OS) in T4 colon cancer.
Methods:
Patients diagnosed with stage T4 on histopathology after undergoing curative surgery for colon cancer between March 2009 and March 2018 were retrospectively analyzed for factors related to postoperative survival. Primary outcomes were DFS and OS.
Results:
Eighty-two patients were included in the study. DFS and OS of the pathologic (p) T4b group were not inferior to that of the pT4a group. Multivariate analysis showed that differentiation (hazard ratio [HR], 4.994; P = 0.005), and laparoscopic surgery (HR, 0.323; P = 0.008) were significant prognostic factors for DFS, while differentiation (HR, 7.904; P ≤ 0.001) and chemotherapy (HR, 0.344; P = 0.038) were significant prognostic factors for OS.
Conclusion
Tumor differentiation, laparoscopic surgery, and adjuvant chemotherapy were found to be significant prognostic factors in patients with T4 colon cancer. Adjuvant chemotherapy and curative resections by laparoscopy might improve the prognosis in these patients.
5.Analysis of the current status of interview evaluations in Korean medical schools and professors’ perceptions of the interview evaluations process
Chungwon HA ; Ye Ji KANG ; Seung-Hee LEE ; Dong Hyeon LEE ; Keunho KIM
Korean Journal of Medical Education 2024;36(3):275-285
Purpose:
This study aimed to investigate the overall operational status of medical school admission interview evaluations in South Korea and explore the operational experience of universities conducting interview evaluations.
Methods:
This study used a mixed-methods approach, combining quantitative and qualitative methods. Through a nationwide survey and data collection from 39 medical schools, the quantitative analysis explored interview evaluations procedures, the purpose of the interview evaluations, and the competencies expected of medical school freshmen. Concurrently, qualitative data were obtained through focus group discussions with 12 professors from 10 medical schools, providing in-depth insights into the operational experiences and challenges faced during interview evaluations.
Results:
In the quantitative data, interview evaluations were most prevalent in the “comprehensive school records screening” for rolling admissions (85.5%), but less common in regular admissions (18.6%). Private schools (64.2%) showed a statistically significant higher proportion of interview admissions than public schools (11.1%) in the “high school grades focused admission” (p<0.01). Metropolitan areas (50.0%) conducted interview evaluations more frequently than non-metropolitan areas (11.1%) in the “College Scholastic Ability Test-focused admissions” (p<0.05). In the qualitative data, professors recognize the dominant role of “negative selection” in filtering out unsuitable candidates. Challenges in maintaining a consistent evaluator pool and team-based question development were acknowledged. Strategies, such as seeking student feedback for question improvement and conducting study meetings for interviewer preparation are essential.
Conclusion
This study illuminates the operation of admissions interview evaluations in South Korea, revealing variations across regions and admissions types. These findings offer insights for enhancing medical school admission processes, guiding future research and policy.
6.Operative Management of the Endoscopic Retrograde Cholangiopancreatography Injury.
Youngkyoung YOU ; Chunggu KIM ; Dongho LEE ; Jiyeon KIM ; Kiwhan KIM ; Sangkweon LEE ; Keunho LEE ; Hyungmin CHIN ; Ilyoung PARK ; Eungkook KIM
Korean Journal of Hepato-Biliary-Pancreatic Surgery 2003;7(1):124-128
BACKGROUND/AIMS: Diagnostic or thepapeutic endoscopic retrograde cholangiopancreatography (ERCP) is the mainstream for the pancreaticobiliary disease. However, the ERCP related complications are serious and sometimes fatal to the patients. We have reviewed our experiences of the operative management for the ERCP injury. METHODS: Medical records of 13 patients who underwent laparotomic surgical intervention for various ERCP injuries from March 1996 to August 2002 at Department of Surgery, the Catholic University of Korea were reviewed. RESULTS: The age range of the patients was from 28 to 85 years. There were 5 females and 8 males. 6 patients showed the duodenal perforations and 4 patients suffered from bleedings around the ampulla of Vater. One of the 4 bleeding patients had huge expanding submucosal hematomas throughout the entire duodenum. We found massive retroperitoneal extraluminal air density in one patient but we could not find any leakage of the contrast media during the upper gastrointestinal series, however, this patient complained aggravated peritoneal irritation sign, so we explored the abdomen. Most of the patients had free abdominal or retroperitoneal air shadows (n=7) on plain chest or abdominal X-ray. We diagnosed the uncontrolled bleeding from the sphincterotomy site using the gastroduodenal fiberscopes in 3 patients. On the computed tomogaphic images, one patient showed a huge duodenal hematoma, another one had a retroperitoneal fluid collection and another one revealed a retroperitoneal air shadow. One patient showed aggravated pancreatitis on the serial CT scan and finally the patient developed a hemorrhagic necrotizing pancreatitis, then we explored the abdomen and tried peripancreatic drainage but we lost the patient in 19 postoperative day due to sepsis. The other 12 patients survived by the various surgical procedures. For the 6 patients, we performed duodenotomic sphincteroplasty, tube duodenostomy and biliary drainage with T-tube. One patient survived with Whipple's procedure, one patient improved by the pyloric exclusion and one patient cured with the duodenal diverticulization. Other procedures were primary repair of the duodenum, transduodenal sphincteroplasty and just cholecystectomy and T-tube choledochostomy. CONCLUSION: There was tendency to uneventful improvement of patients by the early detection and urgent laparotomic surgical intervention of the ERCP complication.
Abdomen
;
Ampulla of Vater
;
Cholangiopancreatography, Endoscopic Retrograde*
;
Cholecystectomy
;
Choledochostomy
;
Contrast Media
;
Drainage
;
Duodenostomy
;
Duodenum
;
Female
;
Hematoma
;
Hemorrhage
;
Humans
;
Korea
;
Male
;
Medical Records
;
Pancreatitis
;
Sepsis
;
Sphincterotomy, Transhepatic
;
Thorax
;
Tomography, X-Ray Computed
7.Cystic Lymphangioma of the Spleen.
Jin Jo KIM ; Yoon Suk LEE ; Keun Ho LEE ; Se Jung OH ; Seung Man PARK ; Young Ha KIM ; Lee So MAENG ; Ki Jun KIM
Journal of the Korean Surgical Society 2006;70(2):158-160
Cystic lymphangioma of the spleen is extremely rare disease and the treatment is always surgical. In the present report we describe a symptomatic splenic cystic lymphangioma in a 44 year-old female. Clinical examination revealed palpable mass in the left upper quadrant of the abdomen. Abdominal CT scan revealed enlarged spleen with multiple, variable sized cysts. A few cysts had peripheral calcification. Open splenectomy was performed and histologic examination permitted the accurate diagnosis to be made. In case of multiple cystic enlargement of spleen, consider the possibility of cystic lymphangioma of the spleen and splenectomy.
Abdomen
;
Adult
;
Diagnosis
;
Female
;
Humans
;
Lymphangioma, Cystic*
;
Rare Diseases
;
Spleen*
;
Splenectomy
;
Splenomegaly
;
Tomography, X-Ray Computed
8.Comparative Study of a Single-Incision Laparoscopic and a Conventional Laparoscopic Appendectomy for the Treatment of Acute Appendicitis.
Jungwoo KANG ; Byung Noe BAE ; Geumhee GWAK ; Inseok PARK ; Hyunjin CHO ; Keunho YANG ; Ki Whan KIM ; Sehwan HAN ; Hong Joo KIM ; Young Duck KIM
Journal of the Korean Society of Coloproctology 2012;28(6):304-308
PURPOSE: For the treatment of acute appendicitis, a conventional laparoscopic appendectomy (LA) has been widely performed. Recently, the use of single incision laparoscopic surgery (SILS) is increasing because it is believed to have advantages over conventional laparoscopic surgery. In this study, we compared SILS and a conventional LA. METHODS: We analyzed the 217 patients who received laparoscopy-assisted appendectomies between August 2010 and April 2012 at Inje University Sanggye Paik Hospital. One hundred-twelve patients underwent SILS, and 105 patients underwent LA. For the two groups, we compared the operation times, postoperative laboratory results, postoperative pain, hospital stay, and postoperative complications. RESULTS: The patients' demographics, including body mass index, were not significantly different between the two groups. There were 6 perforated appendicitis cases in the SILS group and 5 cases in the LA group. The mean operative time in the SILS group was 65.88 +/- 22.74 minutes whereas that in the LA group was 61.70 +/- 22.27 minutes (P = 0.276). There were no significant differences in the mean hospital stays, use of nonsteroidal antiinflammatory drugs, and wound infections between the two groups. CONCLUSION: Postoperative pain, complications and hospital stay showed no statistically significant differences between the SILS and the LA groups. However, our SILS method uses a single trocar and two latex tubes, so cost savings and reduced interference during surgery are expected.
Appendectomy
;
Appendicitis
;
Body Mass Index
;
Cost Savings
;
Demography
;
Humans
;
Laparoscopes
;
Laparoscopy
;
Latex
;
Length of Stay
;
Operative Time
;
Pain, Postoperative
;
Surgical Instruments
;
Wound Infection
9.Organ-Specific Recurrence or Metastatic Pattern of Breast Cancer according to Biological Subtypes and Clinical Characteristics
Jaeyoon KIM ; Yujin LEE ; Taeyong YOO ; Jungbin KIM ; Jonghee HYUN ; Inseok PARK ; Hyunjin CHO ; Keunho YANG ; Byungno BAE ; Kihwan KIM ; Kyeongmee PARK ; Geumhee GWAK
Journal of Breast Disease 2019;7(1):30-37
PURPOSE: We aimed to investigate organ-specific recurrence or the metastatic pattern of breast cancer according to biological subtypes and clinical characteristics. METHODS: We retrospectively analyzed the medical records of 168 patients with recurrent breast cancer who were diagnosed between January 1, 2000 and April 30, 2017. Four biological subtypes were classified according to estrogen receptor (ER), progesterone receptor (PR), human epidermal growth factor receptor 2 (HER2), and Ki-67 expression: luminal A, luminal B, HER2-enriched, and triple negative breast cancer (TNBC). To analyze recurrence patterns according to biological subtypes, we accessed clinical variables including age at diagnosis, TNM stage, type of surgery in the breast and axilla, histologic grade, nuclear grade, lymphatic, vascular, and neural invasion, Ki-67 expression and recurrence to distant organs. RESULTS: The biological subtypes of recurrent breast cancer comprised the following luminal A (n=33, 19.6%), luminal B (n=95, 56.5%), HER2 enriched (n=19, 11.3%), and TNBC (n=21, 12.5%). Luminal A (7.7%) and B (6.5%) subtypes were associated with the increased rate of local recurrence compared to HER2-enriched (2.4%) and TNBC subtypes (1.8%) (p=0.005). The bone (53.6%) was the most common metastatic organ, followed by the lung (34.5%), liver (29.8%), brain (17.9%), and other visceral organ (7.7%). Bone metastasis was commonly observed in individuals with luminal B (63.2%), HER2-enriched (57.9%), and luminal A (42.4%) subtypes (p=0.005). Most liver metastases occur in individuals with luminal B (40.0%) and HER2-enriched subtypes (31.6%) (p=0.002). CONCLUSION: Luminal B subtype was commonly observed in individuals with recurrent breast cancer, and the bone is the most common target organ for breast cancer metastasis, followed by the lungs and liver.
Axilla
;
Brain
;
Breast Neoplasms
;
Breast
;
Diagnosis
;
Estrogens
;
Humans
;
Liver
;
Lung
;
Medical Records
;
Neoplasm Metastasis
;
Organ Specificity
;
Phenobarbital
;
Receptor, Epidermal Growth Factor
;
Receptors, Progesterone
;
Recurrence
;
Retrospective Studies
;
Triple Negative Breast Neoplasms
10.Characteristics of HER2-Positive Breast Cancer according to HER2 2+/ Low or 3+/High Classification by Immunohistochemistry Assay: Study of 205 Cases Treated in a Single Center
Changhee LEE ; Inseok PARK ; Jungbin KIM ; Hyunjin CHO ; Keunho YANG ; Yujin LEE ; Kyeongmee PARK ; Jiyoung KIM ; Youngjoo SHIN ; Geumhee GWAK
Journal of Breast Disease 2021;9(1):1-9
Purpose:
To investigate the characteristics of HER2-positive breast cancer according to HER2 low (2+) or high (3+) classification using immunohistochemistry (IHC).
Methods:
Data were collected from 205 HER2-positive breast cancer patients in the final assay, regardless of IHC or in situ hybridization (ISH). We thus classified patients into two groups: HER2 2+/low and HER2 3+/high based on the IHC assay. We subsequently compared the clinical and pathological characteristics between groups.
Results:
The median patient age was 49 years in the HER2 2+/low group and 53 years in the HER2 3+/high group. We observed a significantly lower Allred score for estrogen receptor (ER) and progesterone receptor (PR) (0-6) (p<0.001), less lymphatic invasion (LI), (p=0.010), neural invasion (p=0.041), higher Ki-67 (p=0.001), and lower Bcl-2 (p<0.001) in the HER2 3+/high group than in the HER2 2+/low group. Lymph node recurrence was more frequently observed in the HER2 2+/low group than in HER2 3+/high group (p=0.005). Disease-free survival (DFS) was better in the HER2 3+/high group than in the HER2 2+/low group (p=0.028), but there were no significant differences in overall survival between the groups (p=0.233).
Conclusion
The HER2 3+/high group was associated with lower ER and PR expression, less LI, higher Ki-67, and lower Bcl-2 than that in HER2 2+/low group in HER2-positive breast cancer. Furthermore, compared to the HER2 2+/low group, the HER2 3+/high group had an improved DFS.