1.Assessment of Left Ventricular Diastolic functions in Elderly Patients with Pulmonary congestion and in Asymptomatic Elders.
Keum Yeol YANG ; Jun Hyuk SON ; Young Jin JOO ; Seung Min CHOI ; Kwang Won RYU ; Weon LEE ; Sin Bae JOO ; Hong Soon LEE
Journal of the Korean Geriatrics Society 2002;6(2):140-145
BACKGROUND: The recent studies shows that LV relaxation abnormalities are the important factors of heart failure in elders. To determine the association between LV diastolic functions and heart failure, we assessed LV diastolic functions in elderly patients with pulmonary congestion and in asymptomatic elders by using pulsed doppler echocardiography. METHODS: In order to assess LV diastolic function, we performed pulsed doppler echocardiography to elderly patients with pulmonary congestion and asymptomatic elders from Mar.2001 to Sep.2001. The following parameters were used as indices of LV diastolic function; Mitral E wave(E), Mitral A wave(A), Deceleration time(DT), Isovolumic relaxation time(IVRT), Systolic pulmonary venous flow(PVs), Diastolic pulmonary venous flow(PVd). RESULTS: In elderly patients groups, there was significant increase in deceleration time compared with asymptomatic elders(255.83+/-54.41 vs 210.80+/-48.53, p<0.05). There was significant increase in isovolumic relaxation time in elderly patient group compared with asymptomatic elders(123.06+/-25.07 vs 98.78+/-15.12, p<0.01). Although there was no significant difference, decreased E/A ratio and increased PVs/PVd were noted in both groups. CONCLUSIONS: The results shows that the impairments of LV diastolic function were noted in both groups. Especially DT and JVRT were significant increase in elderly patient group with pulmonary congestion. Therefore these parameters, such as DT, IVRT, can be helpful as predictive indices of diastolic heart failure in elders.
Aged*
;
Deceleration
;
Echocardiography, Doppler, Pulsed
;
Estrogens, Conjugated (USP)*
;
Heart Failure
;
Heart Failure, Diastolic
;
Humans
;
Relaxation
2.A Case of Severe Cough-induced Abdominal Wall Hematoma.
Jun Hyuk SON ; Jae Joong BAIK ; Keum Yeol YANG ; Kwang Won RYU ; Young Jin JOO ; Seung Min CHOI ; Sang Cheol KIM ; Yeontae CHUNG
Tuberculosis and Respiratory Diseases 2001;51(5):462-465
Severe cough may contribute to serous coplications such as pneumothorax, pneumomediastinum, rib fracture, subconjunctival hemorrhage, subdural hemorrhage and cough syncope. However abdominal wall hematoma is a rare complication. Because it usually presents with abdmoianal pain, abdominal wall hematoma needs to be differentiated from the acute surgical abdomen. A 78-year-old woman was admitted with right lower quadrant abdominal pain and a palpable mass for several days. She experienced abdominal pain after violent coughing associated with an upper respiratory tract in fection. Abdominal computed tomography revealed an approximately 7×4 cm sized, ill-defined, soft tissue density lesion in the right lower posterolateral abdominal wall. An abdominal wall hematoma was diagnosed. After admission, she had persistent right lower abdominal pain and an increasing mass. The mass was surgically removed and she was discharged without complications. In summary, when a patient complains of abdmonial pain after severe coughing, an abdominal wall hematomas as a differential diagnosis must be considered.
Abdomen
;
Abdomen, Acute
;
Abdominal Pain
;
Abdominal Wall*
;
Aged
;
Cough
;
Diagnosis, Differential
;
Female
;
Hematoma*
;
Hematoma, Subdural
;
Hemorrhage
;
Humans
;
Mediastinal Emphysema
;
Pneumothorax
;
Respiratory System
;
Rib Fractures
;
Syncope
3.Immunogenic Cell Death Induced by Ginsenoside Rg3: Significance in Dendritic Cell-based Anti-tumor Immunotherapy.
Keum Joo SON ; Ki Ryung CHOI ; Seog Jae LEE ; Hyunah LEE
Immune Network 2016;16(1):75-84
Cancer is one of the leading causes of morbidity and mortality worldwide; therefore there is a need to discover new therapeutic modules with improved efficacy and safety. Immune-(cell) therapy is a promising therapeutic strategy for the treatment of intractable cancers. The effectiveness of certain chemotherapeutics in inducing immunogenic tumor cell death thus promoting cancer eradication has been reported. Ginsenoside Rg3 is a ginseng saponin that has antitumor and immunomodulatory activity. In this study, we treated tumor cells with Rg3 to verify the significance of inducing immunogenic tumor cell death in antitumor therapy, especially in DC-based immunotherapy. Rg3 killed the both immunogenic (B16F10 melanoma cells) and non-immunogenic (LLC: Lewis Lung Carcinoma cells) tumor cells by inducing apoptosis. Surface expression of immunogenic death markers including calreticulin and heat shock proteins and the transcription of relevant genes were increased in the Rg3-dying tumor. Increased calreticulin expression was directly related to the uptake of dying tumor cells by dendritic cells (DCs): the proportion of CRT+ CD11c+ cells was increased in the Rg3-treated group. Interestingly, tumor cells dying by immunogenic cell death secreted IFN-gamma, an effector molecule for antitumor activity in T cells. Along with the Rg3-induced suppression of pro-angiogenic (TNF-alpha) and immunosuppressive cytokine (TGF-beta) secretion, IFN-gamma production from the Rg3-treated tumor cells may also indicate Rg3 as an effective anticancer immunotherapeutic strategy. The data clearly suggests that Rg3-induced immunogenic tumor cell death due its cytotoxic effect and its ability to induce DC function. This indicates that Rg3 may be an effective immunotherapeutic strategy.
Animals
;
Apoptosis
;
Calreticulin
;
Carcinoma, Lewis Lung
;
Cell Death*
;
Dendritic Cells
;
Heat-Shock Proteins
;
Immunotherapy*
;
Melanoma
;
Mortality
;
Panax
;
Saponins
;
T-Lymphocytes
4.Guideline for Minimizing Radiation Exposure of Interventionalists during Fluoroscopy-Guided Interventional Procedures
Il Sang SHIN ; Yun Nah LEE ; Jun Kyu LEE ; Joo Seong KIM ; Sung Bum KIM ; Jiyoung KEUM ; Chang Hoon OH ; Kang Won LEE ; Joowon CHUNG ; Lyo Min KWON ; Nam Hee KIM ; Sang Soo LEE ; Byoung Kwan SON ; Miyoung CHOI
Korean Journal of Pancreas and Biliary Tract 2024;29(3):69-84
As fluoroscopy-guided interventional procedures gain popularity, the associated health threats from radiation exposure to interventionalists during these procedures are increasing. Therefore, an understanding of the potential risks of radiation and careful consideration on minimizing exposure to radiation during the procedures are of paramount importance. The Korean Pancreatobiliary Association has developed a clinical practice guideline to minimize radiation exposure during fluoroscopy-guided interventional procedures. This guideline provides recommendations to deal with the risk of radiation exposure to interventionalists who perform fluoroscopy-guided procedures, and emphasizes the importance of proper and practical approaches to avoid unnecessary radiation exposure.