Practice patterns of multidisciplinary team meetings in Korean cancer care and patient satisfaction with this approach

Chi Hoon Maeng,Hee Kyung Ahn,Sung Yong Oh,Seungtaek Lim,Bong-Seog Kim,Do Yeun Kim 대한내과학회 2020 The Korean Journal of Internal Medicine Vol.35 No.1

Background/Aims: The multidisciplinary team (MDT) approach is a cornerstone of clinical oncology. This study investigated the current state of MDT care, including patient satisfaction, in Korea. Methods: We obtained the annual number of cancer patients who have received MDT care since 2014 from the registry of the Health Insurance Review and Assessment Service (HIRA). In addition, patients who received MDT care from August 2014 to May 2017 at four university hospitals were further characterized, and patient satisfaction was measured prospectively using a patient-reported questionnaire. Results: The total number of patients who received MDT care increased from 2014 to 2016 (2,113 to 9,998 patients, respectively) in the HIRA Cohort. The type of cancer that most often required MDT was breast cancer (23.8%), followed by colorectal cancer (19.1%). In the Representative Cohort (n = 1,032), MDT was requested by the surgeon more than half the time (55.7%). The main focus of MDT was decision making for further treatment planning (99.0%). The number of doctors participating in the MDT was usually five (70.0%). After initiating an MDT approach, the treatment plan changed for 17.4% of patients. Among these patients, 359 completed a prospective satisfaction survey regarding their MDT care. The overall satisfaction with the MDT approach was very high, with an average score of 9.6 out of 10 points. Conclusions: The application of MDT care is a rapidly growing trend in clinical oncology, and shows high patient satisfaction. Further research is needed to determine which types of cancer patients could benefit most from MDT, and to enable MDT care to operate more efficiently so that it may expand successfully throughout Korea.

Hemato-oncology ; Treatment outcomes and clinical relevance of the Follicular Lymphoma International Prognostic Index in Korean follicular lymphoma patients treated with chemotherapy

( Chi Hoon Maeng ),( Sung Woo Ahn ),( Seong Yoon Ryu ),( Sungjun Han ),( Young Hyeh Ko ),( Jun Ho Ji ),( Won Seog Kim ),( Seok Jin Kim ) 대한내과학회 2016 The Korean Journal of Internal Medicine Vol.31 No.3

Background/Aims: The Follicular Lymphoma International Prognostic Index (FLIPI) and FLIPI2 are well-known prognostic models for patients with follicular lymphoma (FL). However, their prognostic relevance has not been examined before in Korean patients with FL. Methods: We reviewed clinical and laboratory information from our database of patients between 1995 and 2012. In total, 125 patients were stratified in three categories according to FLIPI or FLIPI2 scores: low-, intermediate-, and high-risk groups. We compared FLIPI and FLIPI2 in terms of progression-free survival (PFS) and overall survival (OS). Results: Among the 125 patients, the prognostic value of FLIPI and FLIPI2 was evaluated in 73 patients who fulfilled the criteria of both prognostic models. Risk stratification by FLIPI and FLIPI2 showed significant differences in unfavorable parameters among each risk group, particularly between low- and intermediate- risk groups. The high-risk group b was significantly associated with poor PFS on both FLIPI and FLIPI2 (p < 0.05). However, the OS was significantly different only in the risk groups determined by FLIPI2 (p = 0.042). In a subgroup analysis of patients who received rituximab-containing chemotherapy, the risk stratification of both prognostic models showed a significant impact on PFS, especially in the low-risk group. Conclusions: FLIPI and FLIPI2 are appropriate prognostic models in Korean FL patients, especially for discriminating low-risk patients from intermediate- and high-risk groups.

Practice patterns of multidisciplinary team meet-ings in Korean cancer care and patient satisfaction with this approach

( Chi Hoon Maeng ),( Hee Kyung Ahn ),( Sung Yong Oh ),( Seungtaek Lim ),( Bong-seog Kim ),( Do Yeun Kim ) 대한내과학회 2020 The Korean Journal of Internal Medicine Vol.35 No.1

Background/Aims: The multidisciplinary team (MDT) approach is a cornerstone of clinical oncology. This study investigated the current state of MDT care, including patient satisfaction, in Korea. Methods: We obtained the annual number of cancer patients who have received MDT care since 2014 from the registry of the Health Insurance Review and Assessment Service (HIRA). In addition, patients who received MDT care from August 2014 to May 2017 at four university hospitals were further characterized, and patient satisfaction was measured prospectively using a patient-reported questionnaire. Results: The total number of patients who received MDT care increased from 2014 to 2016 (2,113 to 9,998 patients, respectively) in the HIRA Cohort. The type of cancer that most often required MDT was breast cancer (23.8%), followed by colorectal cancer (19.1%). In the Representative Cohort (n = 1,032), MDT was requested by the surgeon more than half the time (55.7%). The main focus of MDT was decision making for further treatment planning (99.0%). The number of doctors participating in the MDT was usually five (70.0%). After initiating an MDT approach, the treatment plan changed for 17.4% of patients. Among these patients, 359 completed a prospective satisfaction survey regarding their MDT care. The overall satisfaction with the MDT approach was very high, with an average score of 9.6 out of 10 points. Conclusions: The application of MDT care is a rapidly growing trend in clinical oncology, and shows high patient satisfaction. Further research is needed to determine which types of cancer patients could benefit most from MDT, and to enable MDT care to operate more efficiently so that it may expand successfully throughout Korea.

A Case of Organizing Pneumonia Associated with Rituximab

Chi Hoon Maeng,Sang Ouk Chin,Byung Hyuk Yang,Si-young Kim,Hwi-Joong Youn,Kyung Sam Cho,Sun Kyung Baek,Sun Lee 대한암학회 2007 Cancer Research and Treatment Vol.39 No.2

Rituximab is a human/murine chimeric anti-CD20 mono- clonal antibody used to treat CD20-positive B-cell non- Hodgkin’s lymphoma (NHL). Although most of the adverse effects associated with rituximab are usually reversible and temporary infusion-related reactions, including fever, chills, flushing and skin reactions, there are several reports of pulmonary events after long-term administration of rituximab. We present a case of asymptomatic nodular organizing pneumonia occurring during rituximab-based chemotherapy in a patient with non- Hodgkin’s lymphoma. (Cancer Res Treat. 2005;37:88- 91)

A Study of Geological Structure Analysis Using Remotely Sensed Data : Euijungbu-Dongducheon Area in Korea

Chi, Kwang Hoon,Lee, Hong Jin,Park, Maeng Eon 대한원격탐사학회 1997 International Symposium on Remote Sensing Vol.13 No.1

The purpose of this study is to develope the analysis thechnique to use Radarsat SAR for the geological structure and lineament interpretation. The study was carried out in Euijungbu-Dongducheon area where grey biotite granite, pink biotite granite, gneiss complex and alluvium are distributed. Integration image of the SAR and other remotely sensed data such as Landsat TM and SPOT using principal component transformed technique are suitable to discriminate a lithological boundaries. And the Sobel directional filter for SAR data is suitable method for the lineament analysis. There are two prevailing direction in the orientation of lineaments, i.e. one is N20°∼ 30° E while the other is form North to South directions. These techniques are very useful for the analysis of geological structure and lineament.

모바일 로봇을 위한 KNN과 Local Map Classification을 통한 실내 위치 인식 시스템

오승훈(Oh Seung Hoon),황치환(Hwang Chi Hwan),맹주현(Maeng Ju Hyun) 한국통신학회 2021 한국통신학회 학술대회논문집 Vol.2021 No.2

최근 사람의 일을 대신해 주는 서비스 로봇의 등장으로 실내 로봇 서비스의 관심도가 높아지면서 모바일 로봇에 대한 연구가 많이 진행되고 있다.[1]실내 로봇 서비스를 안정적으로 제공하기 위해서는 서비스 제공 주체인 로봇은 실시간 위치 정보를 알아야 한다. 이 위치 정보는 AP로부터의 RSSI(Received Signal Strength Indicator) 신호로 파악 가능하다. RSSI 신호의 세기가 변하면, 실제 거리와 예측하는 거리 사이의 오차가 발생될 수 있다. 이러한 문제를 개선하기 위하여 RSSI 신호의 세기가 변하더라도 거리의 오차를 고정시킬 수 있는 방안에 대한 연구가 필요하다. 본 논문은 거리 오차의 변동성을 줄이기 위해서 Local Map Classification과 KNN(K-Nearest Neighbor) Algorithm을 연동하는 기법을 제안한다. 실험으로 Local Map Classification을 적용하여 얻은 위치 측위 결과를 분석하였다. 이 결과로 앞서 말한 거리 오차의 변동성을 줄이기 위해서 Local Map Classification을 적용하면, 위치 정보를 한 지점에 고정할 수 있다는 사실을 확인하였다.

GIS-based Spatial Fusion using Geochemical Data for Mineral Potential Mapping

Lee, Hong Jin,Chi, Kwang Hoon,Park, Maeng Eon 대한원격탐사학회 2001 International Symposium on Remote Sensing Vol.17 No.1

Lead-zinc ore deposits that exist in Taebaek basin is dominating 80% of domestic production, but outturn is decreasing. Mining areas more than 280 of Taebaek area is registered. This research class I used to make out mineral potential map dividing these mining areas into two classes and class II used in prediction result verification. Made out prediction map and verification map about each class and compared after predict mutually separatively. Produced thematic map that use geological map and geochemical maps (Ca, Cl, Cu, K, Mg, Na, Pb, and Si) to make out quantitative prediction models. These thematic map integrated, and illustrated the result base metal ore deposits' existence possibility area using estimation models. Through these comparison, showed accuracy over 65% about base metal ore deposits' existence possibility area, and we conclude the Bayesian Prediction Model using geochemical data can be effectively applied to predict base metal ore deposits.

A case of pneumatosis cystoides intestinalis induced by sunitinib

( Yong Suk Lee ),( Chi Hoon Maeng ),( Jae Jun Han ),( Sun Kyung Baek ),( Si-young Kim ),( Hwi-joong Yoon ) 대한내과학회 2015 대한내과학회 추계학술대회 Vol.2015 No.1

Pneumatosis cystoides intestinalis (PCI) is a rare condition characterized by air-filled cysts within intestinal wall. It has been known that various clinical situations such as enteritis, infection, ileus and drugs have been responsible to PCI, although the exact etiology is not elucidated yet. We report the first case of PCI, to the best of our knowledge, that was induced by sunitinib. A 68-year old female who was diagnosed of unresectable, well differentiated pancreatic neuroendocrine tumor of WHO grade II. She was treated with sunitinib since January 2015. After 3 months of sunitinib treatment, she complained of watery diarrhea. Colonoscopic finding was normal. After a brief period of improved diarrhea, she came back to hospital due to severe diarrhea over a week. The abdomen was severely distended and abdominal CT showed diffuse gas-filled cystic formation along with distal ileal loop and colon mimicking pneumoperitoneum. The patient did not complain of abdominal pain, tenderness, rebound tenderness or fever. Chronic enteritis and diarrhea by sunitnib persisted more than 2 months, and could result in damage of bowel mucosa repeatedly. Intraluminal bowel gas can enter via mucosal defect of the bowel wall and cause extensive gas-filled cysts within the walls. We have to know the various range of side effects of targeted therapy since it was introduced into medical oncology recently and we could encounter unknown and unexpected adverse events from the therapy.

A Case of Streptococcus pyogenes Pneumonia with Rhabdomyolysis

Shin, Joonbeom,Moon, Soo-youn,Maeng, Chi Hoon,Lee, Mi Suk,Lee, Sangho,Lee, Hee Joo,Lee, Sang Oh 대한감염학회 2007 감염과 화학요법 Vol.39 No.5

We describe a case of Streptococcus pyogenes pneumonia in a 63-year-old man presenting with rhabdomyolysis and acute renal failure. The patient completely recovered following treatment with mechanical ventilation, continuous venovenous hemodiafiltration, and intravenous antimicrobial agents. 저자들은 제2형 당뇨병으로 진단 받고 인슐린으로 당뇨조절 중이던 68세 남자에서 횡문근융해증이 동반된 Streptococcus pyogenes에 의한 지역사회폐렴 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다.

Olanzapine과 Lithisum 복용 후 나타난 Neuroleptic Malignant Syndrome에 동반된 급성신부전과 Lithium 중독

오원택 ( Won Taek Oh ),맹치훈 ( Chi Hoon Maeng ),박미나 ( Mi Na Park ),최선영 ( Sun Young Choi ),정경환 ( Kyung Hwan Jeong ),문주영 ( Ju Young Moon ),이태원 ( Tae Won Lee ),임천규 ( Cheon Gyu Ihm ),이상호 ( Sang Ho Lee ) 대한신장학회 2006 Kidney Research and Clinical Practice Vol.25 No.5

We report a patient developed neuroleptic malignant syndrome (NMS) with myoglobulinemic acute renal failure and lithium intoxication due to lithium-olanzapine combination, who was successfully treated by hemodiafiltration. A 34-year-old woman with a 14-year history of bipolar disorder had been treated with lithium-olanzapine during last four days. She was admitted to our hospital for muscular rigidity, hyperthermia and altered consciousness. On admission, rhabdomyolsis was demonstratd by biochemical methods and serum level of lithium was 3.78 mEq/L which was far above toxic level. After the diagnosis of NMS with acute renal failure and lithium intoxication, olanzapine and lithium were discontinued and conservative measures and continuous venovenous hemodiafiltration were instituted. She recovered without any neurologic sequelae. (Korean J Nephrol 2006;25(5):835-839)