1.Cerebral Vasospasm with Delayed Ischemic Neurologic Deficit after Unruptured Aneurysm Surgery : Report of Two Cases and Review of the Literature
Myungsoo KIM ; Wonsoo SON ; Dong-Hun KANG ; Jaechan PARK
Journal of Korean Neurosurgical Society 2021;64(4):665-670
Symptomatic cerebral vasospasm (CVS) and delayed ischemic neurologic deficit (DIND) after unruptured aneurysm surgery are extremely rare. Its onset timing is variable, and its mechanisms are unclear. We report two cases of CVS with DIND after unruptured aneurysm surgery and review the literature regarding potential mechanisms. The first case is a 51-year-old woman with non-hemorrhagic vasospasm after unruptured left anterior communicating artery aneurysm surgery. She presented with delayed vasospasm on postoperative day 14. The second case is a 45-year-old woman who suffered from oculomotor nerve palsy caused by an unruptured posterior communicatig artery (PCoA) aneurysm. DIND with non-hemorrhagic vasospasm developed on postoperative day 12. To our knowledge, this is the first report of symptomatic CVS with oculomotor nerve palsy following unruptured PCoA aneurysm surgery. CVS with DIND after unruptured aneurysm surgery is very rare and can be triggered by multiple mechanisms, such as hemorrhage, mechanical stress to the arterial wall, or the trigemino-cerebrovascular system. For unruptured aneurysm surgery, although it is rare, careful observation and treatments can be needed for postoperative CVS with DIND.
2.Cerebral Vasospasm with Delayed Ischemic Neurologic Deficit after Unruptured Aneurysm Surgery : Report of Two Cases and Review of the Literature
Myungsoo KIM ; Wonsoo SON ; Dong-Hun KANG ; Jaechan PARK
Journal of Korean Neurosurgical Society 2021;64(4):665-670
Symptomatic cerebral vasospasm (CVS) and delayed ischemic neurologic deficit (DIND) after unruptured aneurysm surgery are extremely rare. Its onset timing is variable, and its mechanisms are unclear. We report two cases of CVS with DIND after unruptured aneurysm surgery and review the literature regarding potential mechanisms. The first case is a 51-year-old woman with non-hemorrhagic vasospasm after unruptured left anterior communicating artery aneurysm surgery. She presented with delayed vasospasm on postoperative day 14. The second case is a 45-year-old woman who suffered from oculomotor nerve palsy caused by an unruptured posterior communicatig artery (PCoA) aneurysm. DIND with non-hemorrhagic vasospasm developed on postoperative day 12. To our knowledge, this is the first report of symptomatic CVS with oculomotor nerve palsy following unruptured PCoA aneurysm surgery. CVS with DIND after unruptured aneurysm surgery is very rare and can be triggered by multiple mechanisms, such as hemorrhage, mechanical stress to the arterial wall, or the trigemino-cerebrovascular system. For unruptured aneurysm surgery, although it is rare, careful observation and treatments can be needed for postoperative CVS with DIND.
3.Plasma Paraquat Concentration and Early Prognostic Factors in Paraquat Poisoning.
WonSuk CHOI ; Ja Hyun KIM ; Hyun A LEE ; KyungHong JUN ; MyungSoo KANG ; Hyang KIM
Korean Journal of Nephrology 2010;29(5):554-561
PURPOSE: Paraquat is a lethal herbicide and induces acute renal failure, hepatic dysfunction, and progressive respiratory failure. The aims of this study are to investigate the correlation between plasma paraquat concentrations and initial laboratory data at Emergency Medical Center and to investigate whether initial laboratory data is useful for predicting outcomes of paraquat-poisoned patients. METHODS: A retrospective analysis by chart review was done on 83 patients who ingested paraquat and who had presented to Emergency center of within 24 hours. Plasma paraquat concentrations, urine dithionite test and initial laboratory parameters including white blood cell count, urine pH, and AST, ALT, BUN, Creatinine, Amylase, Glucose, pH, PaCO2, PaO2, HCO3. Base Excess, Na, K, Cl were obtained at the time of Emergency Center visit. We compared urine dithionite test, plasma paraquat concentrations and Severity Index of Paraquat Pisoning (SSPI) of the survival group to those of the dead group. The patients were divided into four subgroups based on the level of plasma paraquat concentration, their initial laboratory data was compared and analyzed. RESULTS: The mean plasma paraquat concentration in the mortality group was higher than that in the survival group (88.44+/-81.56 vs. 1.32+/-1.72 microgram/mL). Among the initial laboratory data of four subgroups, WBC, Glucose, Cr, pH, HCO3, Bass excess were significantly different between the group of low level of plasma paraquat concentration and higher group. ANCOVA analysis revealed that WBC, HCO3, Bass excess correlated with the level of plasma paraquat concentration significantly. CONCLUSION: The plasma paraquat concentration and SIPP were higher in the mortality group significantly. Initial laboratory data including WBC, Glucose, Cr, pH, HCO3, Bass excess were proven to be significant prognostic factors. Especially WBC, HCO3, Bass excess can be used to predict the outcome of paraquat poisoning.
Acute Kidney Injury
;
Amylases
;
Bass
;
Creatinine
;
Dithionite
;
Emergencies
;
Glucose
;
Humans
;
Hydrogen-Ion Concentration
;
Leukocyte Count
;
Paraquat
;
Plasma
;
Prognosis
;
Respiratory Insufficiency
;
Retrospective Studies
4.TLR/MyD88-mediated Innate Immunity in Intestinal Graft-versus-Host Disease.
Young Kwan LEE ; Myungsoo KANG ; Eun Young CHOI
Immune Network 2017;17(3):144-151
Graft-versus-host disease (GHVD) is a severe complication after allogeneic hematopoietic stem cell transplantation. The degree of inflammation in the gastrointestinal tract, a major GVHD target organ, correlates with the disease severity. Intestinal inflammation is initiated by epithelial damage caused by pre-conditioning irradiation. In combination with damages caused by donor-derived T cells, such damage disrupts the epithelial barrier and exposes innate immune cells to pathogenic and commensal intestinal bacteria, which release ligands for Toll-like receptors (TLRs). Dysbiosis of intestinal microbiota and signaling through the TLR/myeloid differentiation primary response gene 88 (MyD88) pathways contribute to the development of intestinal GVHD. Understanding the changes in the microbial flora and the roles of TLR signaling in intestinal GVHD will facilitate the development of preventative and therapeutic strategies.
Bacteria
;
Dysbiosis
;
Gastrointestinal Microbiome
;
Gastrointestinal Tract
;
Graft vs Host Disease*
;
Hematopoietic Stem Cell Transplantation
;
Immunity, Innate*
;
Inflammation
;
Ligands
;
T-Lymphocytes
;
Toll-Like Receptors
5.Multiple telescopic stenting versus single flow diverter for the treatment of vertebral artery dissecting aneurysm
Min-Seok WOO ; Wonsoo SON ; Dong-Hun KANG ; Jaechan PARK ; Myungsoo KIM
Journal of Cerebrovascular and Endovascular Neurosurgery 2024;26(3):284-292
Objective:
Reconstruction methods, including stent-assisted coiling, multiple telescopic stents, and flow diverters, are preferred modalities for the treatment of unruptured vertebral artery dissecting aneurysms (VADAs). We aimed to compare the clinical outcomes between two reconstructive flow diversion techniques: single flow diverter (FD) device and multiple telescopic stenting (TS).
Methods:
We retrospectively reviewed the clinical data of 39 patients with unruptured VADAs. Of these, 17 patients were treated with multiple TS and 22 with a single FD device. Aneurysm characteristics and clinical outcomes were compared between the two groups.
Results:
All aneurysms included in this study successfully achieved flow diversion, regardless of the treatment modality and duration. However, the mean procedure duration to complete the diversion was shorter in the FD group. Subgroup analysis in TS group showed that there were no significant clinical differences between the low-profile visualized intraluminal support and Enterprise stents, except for the mean procedure duration.
Conclusions
Both the single FD and multiple TS methods showed excellent angiographic and clinical outcomes in the treatment of unruptured VADAs. However, single FD required a shorter procedure duration and was associated with faster achievement of complete flow diversion.
6.Multiple telescopic stenting versus single flow diverter for the treatment of vertebral artery dissecting aneurysm
Min-Seok WOO ; Wonsoo SON ; Dong-Hun KANG ; Jaechan PARK ; Myungsoo KIM
Journal of Cerebrovascular and Endovascular Neurosurgery 2024;26(3):284-292
Objective:
Reconstruction methods, including stent-assisted coiling, multiple telescopic stents, and flow diverters, are preferred modalities for the treatment of unruptured vertebral artery dissecting aneurysms (VADAs). We aimed to compare the clinical outcomes between two reconstructive flow diversion techniques: single flow diverter (FD) device and multiple telescopic stenting (TS).
Methods:
We retrospectively reviewed the clinical data of 39 patients with unruptured VADAs. Of these, 17 patients were treated with multiple TS and 22 with a single FD device. Aneurysm characteristics and clinical outcomes were compared between the two groups.
Results:
All aneurysms included in this study successfully achieved flow diversion, regardless of the treatment modality and duration. However, the mean procedure duration to complete the diversion was shorter in the FD group. Subgroup analysis in TS group showed that there were no significant clinical differences between the low-profile visualized intraluminal support and Enterprise stents, except for the mean procedure duration.
Conclusions
Both the single FD and multiple TS methods showed excellent angiographic and clinical outcomes in the treatment of unruptured VADAs. However, single FD required a shorter procedure duration and was associated with faster achievement of complete flow diversion.
7.Multiple telescopic stenting versus single flow diverter for the treatment of vertebral artery dissecting aneurysm
Min-Seok WOO ; Wonsoo SON ; Dong-Hun KANG ; Jaechan PARK ; Myungsoo KIM
Journal of Cerebrovascular and Endovascular Neurosurgery 2024;26(3):284-292
Objective:
Reconstruction methods, including stent-assisted coiling, multiple telescopic stents, and flow diverters, are preferred modalities for the treatment of unruptured vertebral artery dissecting aneurysms (VADAs). We aimed to compare the clinical outcomes between two reconstructive flow diversion techniques: single flow diverter (FD) device and multiple telescopic stenting (TS).
Methods:
We retrospectively reviewed the clinical data of 39 patients with unruptured VADAs. Of these, 17 patients were treated with multiple TS and 22 with a single FD device. Aneurysm characteristics and clinical outcomes were compared between the two groups.
Results:
All aneurysms included in this study successfully achieved flow diversion, regardless of the treatment modality and duration. However, the mean procedure duration to complete the diversion was shorter in the FD group. Subgroup analysis in TS group showed that there were no significant clinical differences between the low-profile visualized intraluminal support and Enterprise stents, except for the mean procedure duration.
Conclusions
Both the single FD and multiple TS methods showed excellent angiographic and clinical outcomes in the treatment of unruptured VADAs. However, single FD required a shorter procedure duration and was associated with faster achievement of complete flow diversion.
8.Multiple telescopic stenting versus single flow diverter for the treatment of vertebral artery dissecting aneurysm
Min-Seok WOO ; Wonsoo SON ; Dong-Hun KANG ; Jaechan PARK ; Myungsoo KIM
Journal of Cerebrovascular and Endovascular Neurosurgery 2024;26(3):284-292
Objective:
Reconstruction methods, including stent-assisted coiling, multiple telescopic stents, and flow diverters, are preferred modalities for the treatment of unruptured vertebral artery dissecting aneurysms (VADAs). We aimed to compare the clinical outcomes between two reconstructive flow diversion techniques: single flow diverter (FD) device and multiple telescopic stenting (TS).
Methods:
We retrospectively reviewed the clinical data of 39 patients with unruptured VADAs. Of these, 17 patients were treated with multiple TS and 22 with a single FD device. Aneurysm characteristics and clinical outcomes were compared between the two groups.
Results:
All aneurysms included in this study successfully achieved flow diversion, regardless of the treatment modality and duration. However, the mean procedure duration to complete the diversion was shorter in the FD group. Subgroup analysis in TS group showed that there were no significant clinical differences between the low-profile visualized intraluminal support and Enterprise stents, except for the mean procedure duration.
Conclusions
Both the single FD and multiple TS methods showed excellent angiographic and clinical outcomes in the treatment of unruptured VADAs. However, single FD required a shorter procedure duration and was associated with faster achievement of complete flow diversion.
9.Identification of Prognostic Risk Factors for Transient and Persistent Lymphedema after Multimodal Treatment for Breast Cancer.
Myungsoo KIM ; Kyung Hwan SHIN ; So Youn JUNG ; Seeyoun LEE ; Han Sung KANG ; Eun Sook LEE ; Seung Hyun CHUNG ; Yeon Joo KIM ; Tae Hyun KIM ; Kwan Ho CHO
Cancer Research and Treatment 2016;48(4):1330-1337
PURPOSE: The purpose of this study is to identify risk factors for transient lymphedema (TLE) and persistent lymphedema (PLE) following treatment for breast cancer. MATERIALS AND METHODS: A total of 1,073 patients who underwent curative breast surgery were analyzed. TLE was defined as one episode of arm swelling that had resolved spontaneously by the next follow-up; arm swelling that persisted over two consecutive examinations was considered PLE. RESULTS: At a median follow-up period of 5.1 years, 370 cases of lymphedema were reported, including 120 TLE (11.2%) and 250 PLE (23.3%). Initial grade 1 swelling was observed in 351 patients, of which 120 were limited to TLE (34%), while the other 231 progressed to PLE (66%). All initial swelling observed in TLE patients was classified as grade 1. In multivariate analysis, chemotherapy with taxane and supraclavicular radiation therapy (SCRT) were associated with development of TLE, whereas SCRT, stage III cancer and chemotherapy with taxane were identified as risk factors for PLE (p < 0.05). The estimated incidence of TLE among initial grade 1 patients was calculated using up to three treatment-related risk factors (number of dissected axillary lymph nodes, SCRT, and taxane chemotherapy). The approximate ratios of TLE and PLE based on the number of risk factors were 7:1 (no factor), 1:1 (one factor), 1:2 (two factors), and 1:3 (three factors). CONCLUSION: One-third of initial swelling events were transient, whereas the other two-thirds of patients experienced PLE. Estimation of TLE and PLE based on known treatment factors could facilitate prediction of this life-long complication.
Arm
;
Breast Neoplasms*
;
Breast*
;
Combined Modality Therapy*
;
Drug Therapy
;
Follow-Up Studies
;
Humans
;
Incidence
;
Lymph Nodes
;
Lymphedema*
;
Multivariate Analysis
;
Risk Factors*
10.Prognostic value of pretreatment 18F-FDG PET-CT in radiotherapy for patients with hepatocellular carcinoma.
In Young JO ; Seok Hyun SON ; Myungsoo KIM ; Soo Yoon SUNG ; Yong Kyun WON ; Hye Jin KANG ; So Jung LEE ; Yong An CHUNG ; Jin Kyoung OH ; Chul Seung KAY
Radiation Oncology Journal 2015;33(3):179-187
PURPOSE: The purpose of this study was to investigate the predictable value of pretreatment 18F-fluorodeoxyglucose positron emission tomography-computed tomography (18F-FDG PET-CT) in radiotherapy (RT) for patients with hepatocellular carcinoma (HCC) or portal vein tumor thrombosis (PVTT). MATERIALS AND METHODS: We conducted a retrospective analysis of 36 stage I-IV HCC patients treated with RT. 18F-FDG PET-CT was performed before RT. Treatment target was determined HCC or PVTT lesions by treatment aim. They were irradiated at a median prescription dose of 50 Gy. The response was evaluated within 3 months after completion of RT using the Response Evaluation Criteria in Solid Tumors (RECIST). Response rate, overall survival (OS), and the pattern of failure (POF) were analyzed. RESULTS: The response rate was 61.1%. The statistically significant prognostic factor affecting response in RT field was maximal standardized uptake value (maxSUV) only. The high SUV group (maxSUV > or = 5.1) showed the better radiologic response than the low SUV group (maxSUV < 5.1). The median OS were 996.0 days in definitive group and 144.0 days in palliative group. Factors affecting OS were the %reduction of alpha-fetoprotein (AFP) level in the definitive group and Child-Pugh class in the palliative group. To predict the POF, maxSUV based on the cutoff value of 5.1 was the only significant factor in distant metastasis group. CONCLUSION: The results of this study suggest that the maxSUV of 18F-FDG PET-CT may be a prognostic factor for treatment outcome and the POF after RT. A %reduction of AFP level and Child-Pugh class could be used to predict OS in HCC.
alpha-Fetoproteins
;
Carcinoma, Hepatocellular*
;
Electrons
;
Fluorodeoxyglucose F18*
;
Humans
;
Neoplasm Metastasis
;
Portal Vein
;
Positron-Emission Tomography
;
Prescriptions
;
Radiotherapy*
;
Retrospective Studies
;
Thrombosis
;
Treatment Outcome