1.Impact of Regional Nodal Irradiation for Breast Cancer Patients with Supraclavicular and/or Internal Mammary Lymph Node Involvement: A Multicenter, Retrospective Study (KROG 16-14)
Kyubo KIM ; Yuri JEONG ; Kyung Hwan SHIN ; Jin Ho KIM ; Seung Do AHN ; Su Ssan KIM ; Chang Ok SUH ; Yong Bae KIM ; Doo Ho CHOI ; Won PARK ; Jihye CHA ; Mison CHUN ; Dong Soo LEE ; Sun Young LEE ; Jin Hee KIM ; Hae Jin PARK ; Wonguen JUNG
Cancer Research and Treatment 2019;51(4):1500-1508
PURPOSE: The purpose of this study was to evaluate the treatment outcomes of radiotherapy (RT) for breast cancer with ipsilateral supraclavicular (SCL) and/or internal mammary (IMN) lymph node involvement. MATERIALS AND METHODS: A total of 353 patients from 11 institutions were included. One hundred and thirty-six patients had SCL involvement, 148 had IMN involvement, and 69 had both. All patients received neoadjuvant systemic therapy followed by breast-conserving surgery or mastectomy, and postoperative RT to whole breast/chest wall. As for regional lymph node irradiation, SCL RT was given to 344 patients, and IMN RT to 236 patients. The median RT dose was 50.4 Gy. RESULTS: The median follow-up duration was 61 months (range, 7 to 173 months). In-field progression was present in SCL (n=20) and/or IMN (n=7). The 5-year disease-free survival (DFS) and overall survival rates were 57.8% and 75.1%, respectively. On multivariate analysis, both SCL/IMN involvement, number of axillary lymph node ≥ 4, triple-negative subtype, and mastectomy were significant adverse prognosticators for DFS (p=0.022, p=0.001, p=0.001, and p=0.004, respectively). Regarding the impact of regional nodal irradiation, SCL RT dose ≥ 54 Gy was not associated with DFS (5-year rate, 52.9% vs. 50.9%; p=0.696) in SCL-involved patients, and the receipt of IMN RT was not associated with DFS (5-year rate, 56.1% vs. 78.1%; p=0.099) in IMN-involved patients. CONCLUSION: Neoadjuvant chemotherapy followed by surgery and postoperative RT achieved an acceptable in-field regional control rate in patients with SCL and/or IMN involvement. However, a higher RT dose to SCL or IMN RT was not associated with the improved DFS in these patients.
Breast Neoplasms
;
Breast
;
Disease-Free Survival
;
Drug Therapy
;
Follow-Up Studies
;
Humans
;
Lymph Nodes
;
Mastectomy
;
Mastectomy, Segmental
;
Multivariate Analysis
;
Radiotherapy
;
Retrospective Studies
;
Survival Rate
2.Blood Management Protocol without Transfusion in Orthopedic Surgery
You Sung SUH ; Jeong Jae LEE ; Jae Hwi NHO ; Haran CHUNG ; Won Seok LEE ; Byung Woong JANG ; Yong Beom KIM ; Dong Il CHUN ; Sung Woo CHOI ; Jae Chul LEE ; Hyung Suk CHOI
Korean Journal of Blood Transfusion 2019;30(1):15-22
We developed a new blood management protocol that allows patients to not undergo transfusion during major orthopaedic surgery. Here, we report the safety of or our protocol. The preoperative pharmacological protocol consisted of the administration of 40 µg of recombinant erythropoietin subcutaneously and 100 mg of iron supplements intravenously. During the operation, reinfusion of drainage blood using a cell saver and plasma expander was used. The cell saver device passed the collected blood through a filter, which washed the blood, removing the hemolyzed cells and other impurities. Intravenous tranexamic acid 1 g is given just before the operation, except high-risk patients for venous thromboembolism. Postoperatively, recombinant erythropoietin and iron supplements were administered in the same manner with the preoperative protocol and continued until a hemoglobin level reached 10 g/dL.
Drainage
;
Erythropoietin
;
Humans
;
Iron
;
Orthopedics
;
Plasma
;
Tranexamic Acid
;
Venous Thromboembolism
3. Immune enhancement effect of an herb complex extract through the activation of natural killer cells and the regulation of cytokine levels in a cyclophosphamide-induced immunosuppression rat model
Sung Min WOO ; Woo Rin CHOI ; Hae Lim KIM ; Kyung Hyeon KIM ; Joo Won SUH ; Dooly JANG ; Chun Sik YI ; Joo Won SUH ; Jong Tae KIM ; Won Hee CHOI ; Seung Hee JANG ; Min Jeung KIM ; Ji Hyang WEE ; Yeon Ki KIM ; Bao LE ; Seung Hwan YANG
Asian Pacific Journal of Tropical Medicine 2018;11(12):653-658
Objective: To investigate the effects of a herb complex extract (HCE) prepared from Cornus officinalis Sieb. Et Zucc., Eriobotrya japonica Lindley, and olive leaves on immune response of mouse spleen NK cells in vitro and in vivo analysis. Methods: The activity of natural killer (NK) cells was measured in splenocytes and YAC-1 cells. Mice were immunosuppressed using cyclophosphamide (5 mg/kg body weight). Three different doses of HCE (200, 400, and 800 mg/kg body weight) and red ginseng extract (800 mg/kg body weight) which was used as standard immunomodulatory herb were administered orally for 4 weeks. The body weight, dietary, water intake, organs (liver, thymus, and spleen) weight, completed blood count, and cytokines (tumor necrosis factor alpha, interferon gamma, and interleukin-2) production was measured. Results: At the maximum concentration of HCE, the activity of NK cells was increased by 48.5%. HCE increased liver, spleen, and thymus weights without altering numbers of white blood cells, lymphocytes, and neutrophils in a cyclophosphamide-induced immunosuppression rat model. However, HCE recovered the inhibited cytokine expression; HCE (800 mg/kg) increased cytokines levels. The results indicate the immune enhancement potential of this HCE. Conclusion: The HCE enhances immunity by increasing NK cell activity, regulating cytokine levels, and maintaining spleen weight. Therefore, it may be used as a potential immunity enhancer.
4.Anti-N-methyl-D-aspartate Receptor Encephalitis after Herpes Simplex Virus Infection
In Woo PARK ; Yong Bum KIM ; Pil Wook CHUNG ; Heui Soo MOON ; Bum Chun SUH ; Won Tae YOON ; Dong Wook NAMGUNG ; Hong Jik KIM ; Young Kyun KIM ; Su Hyun PARK
Journal of the Korean Neurological Association 2018;36(2):93-96
Anti-N-methyl-D-aspartate (NMDA) receptor encephalitis has clinical features of psychiatric symptoms, loss of memory, seizure, dyskinesia and autonomic dysfunction. While Anti-NMDA receptor encephalitis was initially reported in young women with ovarian teratoma, viral infections can trigger anti-NMDA receptor encephalitis as well. Among them, herpes virus is the most common. We report a patient who developed the anti-NMDA receptor encephalitis 47 days after herpes virus encephalitis, which is, to our knowledge, the first case in Korea.
Anti-N-Methyl-D-Aspartate Receptor Encephalitis
;
Dyskinesias
;
Encephalitis
;
Encephalitis, Herpes Simplex
;
Female
;
Herpes Simplex
;
Humans
;
Korea
;
Memory
;
Seizures
;
Simplexvirus
;
Teratoma
5.Is Robot-Assisted Surgery Really Scarless Surgery? Immediate Reconstruction with a Jejunal Free Flap for Esophageal Rupture after Robot-Assisted Thyroidectomy.
Seong Hoon PARK ; Joo Hyun KIM ; Jun Won LEE ; Hii Sun JEONG ; Dong Jin LEE ; Byung Chun KIM ; In Suck SUH
Archives of Plastic Surgery 2017;44(6):550-553
Esophageal perforation is a rare but potentially fatal complication of robot-assisted thyroidectomy (RAT). Herein, we report the long-term outcome of an esophageal reconstruction with a jejunal free flap for esophageal rupture after RAT. A 33-year-old woman developed subcutaneous emphysema and hoarseness on postoperative day1 following RAT. Esophageal rupture was diagnosed by computed tomography and endoscopy, and immediate surgical exploration confirmed esophageal rupture, as well as recurrent laryngeal nerve injury. We performed a jejunal free flap repair of the 8-cm defect in the esophagus. End-to-side microvascular anastomoses were created between the right external carotid artery and the jejunal branches of the superior mesenteric artery, and end-to-end anastomosis was performed between the external jugular vein and the jejunal vein. The right recurrent laryngeal nerve injury was repaired with a 4-cm nerve graft from the right ansa cervicalis. Esophagography at 1 year after surgery confirmed that there were no leaks or structures, endoscopy at 1 year confirmed the resolution of vocal cord paralysis, and there were no residual problems with swallowing or speech at a 5-year follow-up examination. RAT requires experienced surgeons with a thorough knowledge of anatomy, as well as adequate resources to quickly and competently address potentially severe complications such as esophageal rupture.
Adult
;
Animals
;
Carotid Artery, External
;
Deglutition
;
Endoscopy
;
Esophageal Perforation
;
Esophagus
;
Female
;
Follow-Up Studies
;
Free Tissue Flaps*
;
Hoarseness
;
Humans
;
Jejunum
;
Jugular Veins
;
Mesenteric Artery, Superior
;
Microsurgery
;
Rats
;
Recurrent Laryngeal Nerve Injuries
;
Rupture*
;
Subcutaneous Emphysema
;
Surgeons
;
Thyroidectomy*
;
Transplants
;
Veins
;
Vocal Cord Paralysis
6.Severe Right Internal Carotid Artery Stenosis Mimicking Behavioral Variant Frontotemporal Dementia.
Dong Wook NAMGUNG ; Yong Bum KIM ; Pil Wook CHUNG ; Heui Soo MOON ; Bum Chun SUH ; Won Tae YOON ; Woo Hyun SON ; Hong Jik KIM ; In Woo PARK
Journal of the Korean Neurological Association 2017;35(3):133-137
Many kinds of degenerative, psychiatric, and cerebrovascular diseases can mimic behavioral variant frontotemporal dementia. We present a 73-year-old woman who presented with apathy, inappropriate social behavior, and persecutory delusion. A neuropsychological examination revealed frontal/executive dysfunction with relative sparing of episodic memory. Magnetic resonance imaging and F-18 fluorodeoxyglucose positron-emission tomography produced normal findings. However, magnetic resonance angiography revealed severe right internal carotid stenosis. After carotid stenting, her behavioral symptoms disappeared and did not recur during an 18-month follow-up.
Aged
;
Apathy
;
Behavioral Symptoms
;
Carotid Artery, Internal*
;
Carotid Stenosis*
;
Cerebrovascular Disorders
;
Delusions
;
Female
;
Follow-Up Studies
;
Frontotemporal Dementia*
;
Humans
;
Magnetic Resonance Angiography
;
Magnetic Resonance Imaging
;
Memory, Episodic
;
Positron-Emission Tomography
;
Social Behavior
;
Stents
7.Spontaneous Thrombosis of Posterior Inferior Cerebellar Artery Aneurysm Presenting as Cerebellar Infarction.
Hong Jik KIM ; Pil Wook CHUNG ; Yong Bum KIM ; Heui Soo MOON ; Bum Chun SUH ; Won Tae YOON ; Dong Wook NAMGUNG ; In Woo PARK
Journal of the Korean Neurological Association 2017;35(2):92-94
Ischemic stroke caused by spontaneous thrombosis of posterior inferior cerebellar artery (PICA) aneurysm has been rarely reported. A 52-year-old man presented with sudden headache, dizziness, and gait disturbance. Diffusion-weighted MRI showed acute infarction in left PICA territory. A saccular aneurysm with internal thrombus at the distal PICA was detected by CT angiography and conventional angiography. The thrombus resolved spontaneously at 2 months after stroke onset with aspirin medication. At that time, endovascular coiling was underwent successfully to prevent aneurysmal rupture.
Aneurysm*
;
Angiography
;
Arteries*
;
Aspirin
;
Cerebral Infarction
;
Dizziness
;
Gait
;
Headache
;
Humans
;
Infarction*
;
Magnetic Resonance Imaging
;
Middle Aged
;
Pica
;
Rupture
;
Stroke
;
Thrombosis*
8.Expression of Hepatocyte Hepatitis B Core Antigen and Hepatitis B Surface Antigen as a Marker in the Management of Chronic Hepatitis B Patients.
Sun Young YIM ; Tae Hyung KIM ; Suh Sang JUN ; Eun Sun KIM ; Bora KEUM ; Yeon Seok SEO ; Hyung Joon YIM ; Yoon Tae JEEN ; Hoon Jai CHUN ; Hong Sik LEE ; Soon Ho UM ; Chang Duck KIM ; Nam Hee WON ; Ho Sang RYU
Gut and Liver 2017;11(3):417-425
BACKGROUND/AIMS: We aimed to clarify the association of hepatitis B surface antigen (HBsAg)/hepatitis B core antigen (HBcAg) with the disease status and treatment response in patients with chronic hepatitis B (CHB). METHODS: We investigated 171 biopsy-proven entecavir-treated CHB patients (109 hepatitis B e antigen [HBeAg]-positive, 62 HBeAg-negative). HBcAg expression was positive when ≥10% of hepatocytes stained, and classified into nuclear, mixed, and cytoplasmic patterns. HBsAg expressions were intracytoplasmic (diffuse, globular, and submembranous) and membranous. The histologic activity index (HAI) and fibrosis stage followed Ishak system. RESULTS: In HBeAg-positive patients, older age, increased HAI score, advanced fibrosis, and reduced viral load were observed when HBcAg expression shifted from nucleus to cytoplasm in HBcAg-positive patients, and HBsAg expression from non-submembranous to submembranous in HBcAg-negative patients (all, p<0.05). In HBeAg-negative patients, only intracytoplasmic HBsAg expression patterns had clinical relevance with decreased ALT levels and viremia. In HBeAg-positive patients without favorable predictors of virologic response, negative HBcAg and membranous HBsAg expression predicted greater virologic response (both, p<0.05). The probability of HBeAg seroclearance was higher in patients with increased HAI or lacking HBcAg expression (both, p<0.05). Higher serum HBsAg levels and hepatocyte HBcAg positivity were associated with reduced serum HBsAg during first and post-first year treatment, respectively (both, p<0.05). CONCLUSIONS: Hepatocyte HBcAg/HBsAg expression is a good marker for disease status and predicting treatment response.
Cytoplasm
;
Fibrosis
;
Hepatitis B Core Antigens*
;
Hepatitis B e Antigens
;
Hepatitis B Surface Antigens*
;
Hepatitis B*
;
Hepatitis B, Chronic*
;
Hepatitis*
;
Hepatitis, Chronic*
;
Hepatocytes*
;
Humans
;
Viral Load
;
Viremia
9.Survivorship and Complications after Hip Fracture Surgery in Patients with Chronic Kidney Disease.
You Sung SUH ; Sung Hun WON ; Hyung Suk CHOI ; Jae Chul LEE ; Dong Il CHUN ; Jae Hwi NHO ; Hwan Woong LEE ; Jin Hyeung KIM
Journal of Korean Medical Science 2017;32(12):2035-2041
The aim of this study was to investigate survival rate, complications and associated risk factors after hip fracture surgery in patients with chronic kidney disease (CKD) by comparing to non-CKD patients. A total of 119 patients (130 hips, 63 hips CKD group, 67 hips non-CKD) who underwent hip fracture surgery were included. We assessed variables including age, gender, CKD, comorbidities, operation delay and operation time as risk factors for survival and complications after hip fracture surgery. The survival rate was 55.8% at 1-year, 45.8% at 3-year, and 31.4% at 5-year in CKD group, whereas 82.1%, 60.7%, and 36.8%, respectively in non-CKD. Age (more than 85) (hazard ratio [HR], 3.238; 95% confidence interval [CI], 1.736–6.042; P < 0.001), stages 4, 5 of CKD (HR, 2.004; 95% CI, 1.170–3.433; P = 0.001), cerebrovascular disease (HR, 2.213; 95% CI, 1.196–4.095; P = 0.001), and malignancy (HR, 3.086; 95% CI, 1.553–6.129; P = 0.001) were significant risk factors. Complications occurred in 17 hips of CKD group and 8 hips of non-CKD. Stage 4–5 of CKD (odds ratio [OR], 3.401; 95% CI, 1.354–8.540; P = 0.001), malignancy (OR, 3.184; 95% CI, 0.984–10.301; P = 0.050) were significant risk factor. When performing hip fracture surgery in patients with CKD, surgeons should consider age, severity of CKD, and presence of other comorbid disease, such as cerebrovascular disease and malignancy, as patients with these risk factors will need more intensive preoperative and postoperative care.
Cerebrovascular Disorders
;
Comorbidity
;
Hip*
;
Humans
;
Postoperative Care
;
Renal Insufficiency, Chronic*
;
Risk Factors
;
Surgeons
;
Survival Rate*
10.Probiotic properties and adsorption of Enterococcus faecalis PSCT3-7 to vermiculite.
Jin Yoon KIM ; Elias Gebru AWJI ; Na Hye PARK ; Ji Yong PARK ; Jong Choon KIM ; Sam Pin LEE ; Joo Won SUH ; Seung Chun PARK
Journal of Veterinary Science 2017;18(1):95-99
The probiotic properties of Enterococcus (E.) faecalis PSCT3-7, a new strain isolated from the intestines of pigs fed dietary fiber containing 50% sawdust, were investigated. E. faecalis PSCT3-7 tolerated a pH range of 3 to 8 and 0.3% bile salts, and it inhibited the growth of Salmonella Typhimurium in a concentration-dependent manner. In addition, E. faecalis showed resistance to several antibacterial agents. Vermiculite, a nutrient and microbial carrier, increased the bile tolerance of the strain. Scanning electron microscope images revealed good adsorption of E. faecalis PSCT3-7 onto vermiculite. E. faecalis PSCT3-7 represents a potential probiotic candidate to administer with vermiculite to swine.
Adsorption*
;
Anti-Bacterial Agents
;
Bile
;
Bile Acids and Salts
;
Dietary Fiber
;
Enterococcus faecalis*
;
Enterococcus*
;
Hydrogen-Ion Concentration
;
Intestines
;
Probiotics*
;
Salmonella typhimurium
;
Swine

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