1.Significance of Intracranial Pressure Monitoring after Early Decompressive Craniectomy in Patients with Severe Traumatic Brain Injury.
Deok Ryeong KIM ; Seung Ho YANG ; Jae Hoon SUNG ; Sang Won LEE ; Byung Chul SON
Journal of Korean Neurosurgical Society 2014;55(1):26-31
OBJECTIVE: Early decompressive craniectomy (DC) has been used as the first stage treatment to prevent secondary injuries in cases of severe traumatic brain injury (TBI). Postoperative management is the major factor that influences outcome. The aim of this study is to investigate the effect of postoperative management, using intracranial pressure (ICP) monitoring and including consecutive DC on the other side, on the two-week mortality in severe TBI patients treated with early DC. METHODS: Seventy-eight patients with severe TBI [Glasgow Coma Scale (GCS) score <9] underwent early DC were retrospectively investigated. Among 78 patients with early DC, 53 patients were managed by conventional medical treatments and the other, 25 patients were treated under the guidance of ICP monitoring, placed during early DC. In the ICP monitoring group, consecutive DC on the other side were performed on 11 patients due to a high ICP of greater than 30 mm Hg and failure to respond to any other medical treatments. RESULTS: The two-week mortality rate was significantly different between two groups [50.9% (27 patients) and 24% (6 patients), respectively, p=0.025]. After adjusting for confounding factors, including sex, low GCS score, and pupillary abnormalities, ICP monitoring was associated with a 78% lower likelihood of 2-week mortality (p=0.021). CONCLUSION: ICP monitoring in conjunction with postoperative treatment, after early DC, is associated with a significantly reduced risk of death.
Brain Injuries*
;
Coma
;
Decompressive Craniectomy*
;
Humans
;
Intracranial Pressure*
;
Mortality
;
Retrospective Studies
2.Neurolysis for Megalgia Paresthetica.
Byung Chul SON ; Deok Ryeong KIM ; Il Sup KIM ; Jae Taek HONG ; Jae Hoon SUNG ; Sang Won LEE
Journal of Korean Neurosurgical Society 2012;51(6):363-366
OBJECTIVE: Meralgia paresthetica (MP) is a syndrome of pain and/or dysesthesia in the anterolateral thigh that is caused by an entrapment of the lateral femoral cutaneous nerve (LFCN) at its pelvic exit. Despite early accounts of MP, there is still no consensus concerning the effectiveness of neurolysis or transaction treatments in the long-term relief for medically refractory patients with MP. We retrospectively analyzed available long-term results of LFCN neurolysis for medically refractory MP in an effort to clarify this issue. METHODS: During the last 7 years, 11 patients who had neurolysis for MP were enrolled in this study. Nerve entrapment was confirmed preoperatively by electrophysiological studies or a positive response to local anesthetic injection. Decompression of the LFCN was performed at the level of the iliac fascia, inguinal ligament, and fascia of the thigh distally. The outcome of surgery was assessed 8 weeks after the procedure followed at regular intervals if symptoms persisted. RESULTS: Twelve decompression procedures were performed in 11 patients over a 7-year period. The average duration of symptoms was 8.5 months (range, 4-15 months). The average follow-up period was 33 months (range, 12-60 months). Complete and partial symptom improvement were noted in nine (81.8%) and two (18.2%) cases, respectively. No recurrence was reported. CONCLUSION: Neurolysis of the LFCN can provide adequate pain relief with minimal complications for medically refractory MP. To achieve a good outcome in neurolysis for MP, an accurate diagnosis with careful examination and repeated blocks of the LFCN, along with electrodiagnosis seems to be essential. Possible variation in the course of the LFCN and thorough decompression along the course of the LFCN should be kept in mind in planning decompression surgery for MP.
Consensus
;
Decompression
;
Electrodiagnosis
;
Fascia
;
Follow-Up Studies
;
Humans
;
Ligaments
;
Nerve Compression Syndromes
;
Paresthesia
;
Recurrence
;
Retrospective Studies
;
Thigh
3.Intravascular Large B-cell Lymphoma within Duodenal Gastrointestinal Stromal Tumor.
Jeong Hyeon LEE ; Jun Kyu LEE ; Soo Ryeong RYOO ; Seung Joo BYUN ; Kang Min HAN ; Jin Hee JUNG ; In Woong HAN ; Jae Hyun KWON ; Eo Jin KIM
Korean Journal of Pancreas and Biliary Tract 2016;21(4):239-243
Intravascular large B-cell lymphoma (IVLBCL) is a rare disease of intravascular growth of malignant lymphocytes without an obvious extravascular tumor mass or existence in peripheral blood. It has poor prognosis due to its aggressive behavior and rapid systemic dissemination. But there is no pathognomonic finding, diagnosis of IVLBCL is still challenging. Here we report a case of IVLBCL found within a resected specimen of duodenal gastrointestinal stromal tumor.
B-Lymphocytes*
;
Diagnosis
;
Gastrointestinal Stromal Tumors*
;
Lymphocytes
;
Lymphoma
;
Lymphoma, B-Cell*
;
Prognosis
;
Rare Diseases
4.Intravascular Large B-cell Lymphoma within Duodenal Gastrointestinal Stromal Tumor.
Jeong Hyeon LEE ; Jun Kyu LEE ; Soo Ryeong RYOO ; Seung Joo BYUN ; Kang Min HAN ; Jin Hee JUNG ; In Woong HAN ; Jae Hyun KWON ; Eo Jin KIM
Korean Journal of Pancreas and Biliary Tract 2016;21(4):239-243
Intravascular large B-cell lymphoma (IVLBCL) is a rare disease of intravascular growth of malignant lymphocytes without an obvious extravascular tumor mass or existence in peripheral blood. It has poor prognosis due to its aggressive behavior and rapid systemic dissemination. But there is no pathognomonic finding, diagnosis of IVLBCL is still challenging. Here we report a case of IVLBCL found within a resected specimen of duodenal gastrointestinal stromal tumor.
B-Lymphocytes*
;
Diagnosis
;
Gastrointestinal Stromal Tumors*
;
Lymphocytes
;
Lymphoma
;
Lymphoma, B-Cell*
;
Prognosis
;
Rare Diseases
5.A Case of Sequential Lymphoma in an Human Immunodeficiency Virus-Infected Patient.
Yu Na JUNG ; Jae Ryeong LEE ; Hee Sook LEE ; Bum Sik JIN ; Chang In SEO ; Hyoung Shik SHIN ; Eun Jung JUNG
Korean Journal of Medicine 2015;88(4):469-474
Rarely, two different histological types of lymphoma develop in the same person. Sequential lymphoma is defined as two different types of lymphoma occurring in the same person sequentially. A 47-year-old patient with human immunodeficiency virus (HIV) infection who had been diagnosed with mixed cellularity Hodgkin's lymphoma was treated with adriamycin, bleomycin, vinblastine, and dacarbazine combination chemotherapy. After six cycles of chemotherapy, abdominal computed tomography showed multiple liver masses. A percutaneous needle biopsy of the liver and polymerase chain reaction single-strand conformation polymorphism revealed hepatosplenic T-cell lymphoma. The patient died 3 months after the diagnosis of hepatosplenic T-cell lymphoma. To our knowledge, this is the first case of the sequential development of hepatosplenic T-cell lymphoma after Hodgkin's lymphoma in a Korean HIV-infected patient.
Biopsy, Needle
;
Bleomycin
;
Dacarbazine
;
Diagnosis
;
Doxorubicin
;
Drug Therapy
;
Drug Therapy, Combination
;
HIV
;
Hodgkin Disease
;
Humans
;
Liver
;
Lymphoma*
;
Lymphoma, T-Cell
;
Middle Aged
;
Polymerase Chain Reaction
;
Vinblastine
6.Nitric Oxide Inhibitory Constituents from the Fruits of Amomum tsao-ko
Jun Gu KIM ; Thi Phuong Linh LE ; Hye Ryeong HONG ; Jae Sang HAN ; Jun Hwi KO ; Seung Hyun LEE ; Mi Kyeong LEE ; Bang Yeon HWANG
Natural Product Sciences 2019;25(1):76-80
Bioactivity-guided fractionation of MeOH extract of the dried fruits of Amomum tsao-ko led to isolation of nine compounds (1 – 9). Their structures were elucidated by spectroscopic methods including extensive 1D and 2D-NMR, as alpinetin (1), naringenin-5-O-methyl ether (2), naringenin (3), hesperetin (4), 2′,4′,6′-trihydroxy-4-methoxy chalcone (5), tsaokoin (6), boesenbergin B (7), 4-hydroxyboesenbergin B (8), and tsaokoarylone (9). Of these, compound 8 was isolated from a natural source for the first time, which was previously reported as a synthetic product. The isolated compounds (1 – 9) were tested for their inhibitory effects on LPS-induced nitric oxide production in RAW 264.7 macrophages. Among them, three chalcone derivatives (compounds 5, 7, and 8) and a diarylheptanoid (compound 9) exhibited significant inhibitory activity on the NO production with IC₅₀ values ranging from 10.9 to 22.5 µM.
Amomum
;
Chalcone
;
Ether
;
Fruit
;
Macrophages
;
Nitric Oxide
;
Zingiberaceae
7.Clinical value of procalcitonin for suspected nosocomial bloodstream infection
Joo Kyoung CHA ; Ki Hwan KWON ; Seung Joo BYUN ; Soo Ryeong RYOO ; Jeong Hyeon LEE ; Jae Woo CHUNG ; Hee Jin HUH ; Seok Lae CHAE ; Seong Yeon PARK
The Korean Journal of Internal Medicine 2018;33(1):176-184
BACKGROUND/AIMS:
Procalcitonin (PCT) may prove to be a useful marker to exclude or predict bloodstream infection (BSI). However, the ability of PCT levels to differentiate BSI from non-BSI episodes has not been evaluated in nosocomial BSI.
METHODS:
We retrospectively reviewed the medical records of patients ≥ 18 years of age with suspected BSI that developed more than 48 hours after admission.
RESULTS:
Of the 785 included patients, 105 (13.4%) had BSI episodes and 680 (86.6%) had non-BSI episodes. The median serum PCT level was elevated in patients with BSI as compared with those without BSI (0.65 ng/mL vs. 0.22 ng/mL, p = 0.001). The optimal PCT cut-off value of BSI was 0.27 ng/mL, with a corresponding sensitivity of 74.6% (95% confidence interval [CI], 66.4% to 81.7%) and a specificity of 56.5% (95% CI, 52.7% to 60.2%). The area under curve of PCT (0.692) was significantly larger than that of C-reactive protein (CRP; 0.526) or white blood cell (WBC) count (0.518). However, at the optimal cut-off value, PCT failed to predict BSI in 28 of 105 cases (26.7%). The PCT level was significantly higher in patients with an eGFR < 60 mL/min/1.73 m² than in those with an eGFR ≥ 60 mL/min/1.73 m² (0.68 vs. 0.17, p = 0.01).
CONCLUSIONS
PCT was more useful for predicting nosocomial BSI than CRP or WBC count. However, the diagnostic accuracy of predicting BSI remains inadequate. Thus, PCT is not recommended as a single diagnostic tool to avoid taking blood cultures in the nosocomial setting.
8.Effect of D-glucose feeding on mortality induced by sepsis.
Sung Su KIM ; Yun Beom SIM ; Soo Hyun PARK ; Jae Ryeong LEE ; Naveen SHARMA ; Hong Won SUH
The Korean Journal of Physiology and Pharmacology 2016;20(1):83-89
Sepsis is the life-threatening response to infection which can lead to tissue damage, organ failure, and death. In the current study, the effect of orally administered D-glucose on the mortality and the blood glucose level induced by D-Galactosamine (GaLN)/lipopolysaccharide (LPS)-induced sepsis was examined in ICR mice. After various amounts of D-glucose (from 1 to 8 g/kg) were orally fed, sepsis was induced by injecting intraperitoneally (i.p.) the mixture of GaLN /LPS. Oral pre-treatment with D-glucose dose-dependently increased the blood glucose level and caused a reduction of sepsis-induced mortality. The oral post-treatment with D-glucose (8 g/kg) up to 3 h caused an elevation of the blood glucose level and protected the mortality observed in sepsis model. However, D-glucose post-treated at 6, 9, or 12 h after sepsis induction did not affect the mortality and the blood glucose level induced by sepsis. Furthermore, the intrathecal (i.t.) pretreatment once with pertussis toxin (PTX; 0.1 microg/5 ml) for 6 days caused a reduction of D-glucose-induced protection of mortality and hyperglycemia. Furthermore, once the hypoglycemic state is continued up to 6 h after sepsis initiated, sepsis-induced mortality could not be reversed by D-glucose fed orally. Based on these findings, it is assumed that the hypoglycemic duration between 3 and 6 h after the sepsis induction may be a critical time of period for the survival. D-glucose-induced protective effect against sepsis-induced mortality appears to be mediated via activating PTX-sensitive G-proteins in the spinal cord. Finally, the production of hyperglycemic state may be critical for the survival against the sepsis-induced mortality.
Animals
;
Blood Glucose
;
Glucose*
;
GTP-Binding Proteins
;
Hyperglycemia
;
Mice
;
Mice, Inbred ICR
;
Mortality*
;
Pertussis Toxin
;
Sepsis*
;
Spinal Cord
9.Predictive Value of Preoperative Volume-Based 18F-2-Fluoro-2-Deoxy-D-Glucose Positron Emission Tomography/Computed Tomography Parameters in Patients with Resectable Lung Adenocarcinoma
Sunju CHOI ; Hye Ryeong KWON ; Hee Young CHO ; Kisoo PAHK ; Sung Ho LEE ; Jae Ho CHUNG ; Hyun Woo KWON ; Sungeun KIM
Nuclear Medicine and Molecular Imaging 2018;52(6):453-461
PURPOSE: This study aimed to investigate the prognostic value of metabolic tumor volume (MTV) and total lesion glycolysis (TLG), which are volume-based PET parameters, using 18F-2-fluoro-2-deoxy-D-glucose positron emission tomography/computed tomography (¹⁸F-FDG PET/CT) in patients with surgically resectable lung adenocarcinoma.METHODS: We retrospectively evaluated 149 patients with lung adenocarcinoma who underwent 18F-FDG PET/CT before surgical resection. Maximum standardized uptake value (SUVmax), MTV, and TLG of the primary tumor with threshold value of SUVmax 30, 40, and 50% were calculated, respectively. To compare the predictive performance of volume-based PET parameters, recurrence-free survival was assessed using the Kaplan-Meier method.RESULTS: The study included 70 males and 79 females with an average age of 65.8 years. The median follow-up time was 45.4 months. Recurrence was observed in 53 patients (35.6%). The mean ± SD SUVmax, MTV30%, and TLG(30%) of the entire cohort were 4.79 ± 2.94, 19.45 ± 24.85, and 56.43 ± 101.88, respectively. The cut-off values of MTV30% and TLG(30%) for recurrence were 11.07 ad 30.56, respectively. The 1-year recurrence-free survival (RFS) rate was 96.5% in low-MTV30% patients compared with 86.2% in high-MTV30% patients (p = 0.018) and 96.0% in low-TLG(30%) patients compared with 88.5% in high-TLG(30%) patients (p < 0.001). On univariate and multivariate analysis, TLG(30%) (HR, 2.828, p < 0.001; HR, 2.738, p < 0.001, respectively) was an independent prognostic factor for predicting recurrence-free survival (RFS).CONCLUSION: TLG(30%) value was observed to be a significant prognostic factor for RFS in patients with lung adenocarcinoma treated by surgical resection.
Adenocarcinoma
;
Cohort Studies
;
Electrons
;
Female
;
Fluorodeoxyglucose F18
;
Follow-Up Studies
;
Glycolysis
;
Humans
;
Lung
;
Male
;
Methods
;
Multivariate Analysis
;
Positron-Emission Tomography and Computed Tomography
;
Recurrence
;
Retrospective Studies
;
Tumor Burden
10.Predictive Value of Preoperative Volume-Based 18F-2-Fluoro-2-Deoxy-D-Glucose Positron Emission Tomography/Computed Tomography Parameters in Patients with Resectable Lung Adenocarcinoma
Sunju CHOI ; Hye Ryeong KWON ; Hee Young CHO ; Kisoo PAHK ; Sung Ho LEE ; Jae Ho CHUNG ; Hyun Woo KWON ; Sungeun KIM
Nuclear Medicine and Molecular Imaging 2018;52(6):453-461
PURPOSE:
This study aimed to investigate the prognostic value of metabolic tumor volume (MTV) and total lesion glycolysis (TLG), which are volume-based PET parameters, using 18F-2-fluoro-2-deoxy-D-glucose positron emission tomography/computed tomography (¹â¸F-FDG PET/CT) in patients with surgically resectable lung adenocarcinoma.
METHODS:
We retrospectively evaluated 149 patients with lung adenocarcinoma who underwent 18F-FDG PET/CT before surgical resection. Maximum standardized uptake value (SUVmax), MTV, and TLG of the primary tumor with threshold value of SUVmax 30, 40, and 50% were calculated, respectively. To compare the predictive performance of volume-based PET parameters, recurrence-free survival was assessed using the Kaplan-Meier method.
RESULTS:
The study included 70 males and 79 females with an average age of 65.8 years. The median follow-up time was 45.4 months. Recurrence was observed in 53 patients (35.6%). The mean ± SD SUVmax, MTV30%, and TLG(30%) of the entire cohort were 4.79 ± 2.94, 19.45 ± 24.85, and 56.43 ± 101.88, respectively. The cut-off values of MTV30% and TLG(30%) for recurrence were 11.07 ad 30.56, respectively. The 1-year recurrence-free survival (RFS) rate was 96.5% in low-MTV30% patients compared with 86.2% in high-MTV30% patients (p = 0.018) and 96.0% in low-TLG(30%) patients compared with 88.5% in high-TLG(30%) patients (p < 0.001). On univariate and multivariate analysis, TLG(30%) (HR, 2.828, p < 0.001; HR, 2.738, p < 0.001, respectively) was an independent prognostic factor for predicting recurrence-free survival (RFS).
CONCLUSION
TLG(30%) value was observed to be a significant prognostic factor for RFS in patients with lung adenocarcinoma treated by surgical resection.