scholarly journals Prognostic Factors of Colorectal Cancer: A Comparative Study on Patients With or Without Liver Metastasis

2021 ◽  
Vol 11 ◽  
Author(s):  
Honghua Peng ◽  
Guifeng Liu ◽  
Ying Bao ◽  
Xi Zhang ◽  
Lehong Zhou ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Risk Factors ◽  
Risk Factor ◽  
Liver Metastasis ◽  
Adjuvant Therapy ◽  
Independent Risk Factor ◽  
Stage Iv ◽  
Genetic Alterations ◽  
Stage Ii ◽  
Independent Risk Factors

BackgroundRadical or palliative surgery with subsequent adjuvant therapy is the routine treatment for stage II/III colorectal cancer(CRC) and some stage IV CRC patients. This study aimed to clarify the prognostic clinicopathological and genetic factors for these patients.MethodsFifty-five stage II-IV CRC patients undergoing surgery and adjuvant therapy were recruited, including patients without liver metastasis(5 at stage II, 21 at stage III) and with liver metastasis(29 at stage IV). Genetic alterations of the primary cancer tissues were investigated by whole exome sequencing(WES). Patients were followed up to 1652 days(median at 788 days).ResultsThe mutational landscape of primary CRC tissue of patients with or without liver metastasis was largely similar, although the mutational frequency of TRIM77 and TCF7L2 was significantly higher in patients with liver metastasis. Several main driver gene co-mutations, such as TP53-APC, APC-KRAS, APC-FRG1, and exclusive mutations, such as TP53-CREBBP, were found in patients with liver metastasis, but not in patients without liver metastasis. No significant difference was found between the two groups in aberrant pathways. If stage II-IV patients were studied altogether, relapse status, SUPT20HL1 mutations, Amp27_21q22.3 and Del8_10q23.2 were independent risk factors(P<0.05). If patients were divided into two groups by metastatic status, surgery types and Amp6_20q13.33 were independent risk factors for patients without liver metastasis(P<0.05), while TRIM77 mutations were the only independent risk factor for patients with liver metastasis(P<0.05).ConclusionsSurgery types and Amp6_20q13.33 were independent risk factors for CRC patients without liver metastasis, and TRIM77 mutations were the independent risk factor for CRC patients with liver metastasis.

Clinical characteristics and prognosis in patients with premature coronary artery disease of different genders after intervention

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
X.F Tang ◽  
Y Yao ◽  
S.D Jia ◽  
Y Liu ◽  
B Xu ◽  
...  
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
Independent Risk Factor ◽  
Coronary Intervention ◽  
Premature Coronary Artery Disease ◽  
Minor Bleeding ◽  
Bleeding Events ◽  
Cerebrovascular Events ◽  
Independent Risk Factors ◽  
Artery Disease

Abstract Objective To investigate the clinical characteristics and long-term prognosis of coronary intervention in patients with premature coronary artery disease (PCAD) between different genders. Methods From January 2013 to December 2013, 4 744 patients diagnosed as PCAD with percutaneous coronary intervention (PCI) in our hospital were enrolled. The general clinical data, laboratory results and interventional treatment data of all patients were collected, and the occurrence of major adverse cardio-cerebrovascular events (MACCE) within 2 years after PCI was followed up. Results Of the 4 744 patients undergoing PCI, 3 390 (71.5%) were males and 1 354 (28.5%) were females. The 2-year follow-up results showed that the incidence of BARC grade 1 hemorrhage in female patients was significantly higher than that in male patients (6.9% vs. 3.7%; P<0.001); however, there was no significant difference in the incidence of major adverse cardiovascular and cerebrovascular events (MACCE), all-cause death, cardiac death, recurrent myocardial infarction, revascularization (target vessel revascularization and target lesion revascularization), stent thrombosis, stroke and BARC grade 2–5 hemorrhage between the two groups (P>0.05). Multivariate COX regression analysis showed that gender was an independent risk factor for BARC grade 1 bleeding events in PCAD patients (HR=2.180, 95% CI: 1.392–3.416, P<0.001), but it was not an independent risk factor for MACCE and BARC grade 2–5 bleeding. Hyperlipidemia, preoperative SYNTAX score, multivessel lesions and NSTE-ACS were the independent risk factors for MACCE in PCAD patients with PCI (HR=1.289, 95% CI: 1.052–1.580, P=0.014; HR=1.030, 95% CI: 1.019–1.042, P<0.001; HR=1.758, 95% CI: 1.365–2.264, P<0.001; HR=1.264, 95% CI: 1.040–1.537, P=0.019); gender, hyperlipidemia, anticoagulant drugs like low molecular weight heparin or sulfonate were the independent risk factors for bleeding events (HR=1.579,95% CI 1.085–2. 297, P=0.017; HR=1.305, 95% CI 1.005–1.695, P=0.046; HR=1.321, 95% CI 1.002–1.741, P=0.048; HR=1.659, 95% CI 1.198–2.298, P=0.002). Conclusion The incidence of minor bleeding in women with PCAD is significantly higher than that in men; After adjusting for various risk factors, gender is an independent risk factor for minor bleeding events, but not an independent risk factor for MACCE in patients with PCAD. Funding Acknowledgement Type of funding source: Public grant(s) – National budget only. Main funding source(s): National Science and Technology Support Program of China

scholarly journals Aneurysm characteristics and risk of rebleeding after subarachnoid haemorrhage

2018 ◽  
Vol 4 (2) ◽  
pp. 153-159
Author(s):  
Inez Koopman ◽  
Jacoba P Greving ◽  
Irene C van der Schaaf ◽  
Albert van der Zwan ◽  
Gabriel JE Rinkel ◽  
...  
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
Aspect Ratio ◽  
Subarachnoid Haemorrhage ◽  
Independent Risk Factor ◽  
Irregular Shape ◽  
Aneurysmal Subarachnoid Haemorrhage ◽  
Aneurysm Size ◽  
Aneurysm Treatment ◽  
Independent Risk Factors

Introduction Knowledge of risk factors for rebleeding after aneurysmal subarachnoid haemorrhage can help tailoring ultra-early aneurysm treatment. Previous studies have identified aneurysm size and various patient-related risk factors for early (≤24 h) rebleeding, but it remains unknown if aneurysm configuration is also a risk factor. We investigated whether irregular shape, aspect- and bottleneck ratio of the aneurysm are independent risk factors for early rebleeding after aneurysmal subarachnoid haemorrhage. Patients and methods From a prospectively collected institutional database, we investigated data from consecutive aneurysmal subarachnoid haemorrhage patients who were admitted ≤24 h after onset between December 2009 and January 2015. The admission computed tomographic angiogram was used to assess aneurysm size and configuration. With Cox regression, we calculated stepwise-adjusted hazard ratios (HRs) with 95% confidence intervals (CIs) for irregular shape, aspect ratio ≥1.6 mm and bottleneck ratio ≥1.6 mm. Results Of 409 included patients, 34 (8%) patients had in-hospital rebleeding ≤24 h after ictus. Irregular shape was an independent risk factor for rebleeding (HR: 3.9, 95% CI: 1.3–11.3) after adjustment for age, sex, PAASH score, aneurysm location, aneurysm size and aspect- and bottleneck ratio. Aspect ratio ≥1.6 mm (HR: 2.3, 95% CI: 0.8–6.5) and bottleneck ratio ≥1.6 mm (HR: 1.7, 95% CI: 0.8–3.6) were associated with an increased risk of rebleeding, but were not independent risk factors after multivariable adjustment. Conclusions Irregular shape is an independent risk factor for early rebleeding. However, since the majority of subarachnoid haemorrhage patients have an irregular aneurysm, additional risk factors have to be found for aneurysm treatment prioritisation.

Effect of preoperative hepatic and regional arterial chemotherapy on metachronous liver metastasis after curative colorectal cancer resection: A prospective, multicenter, randomized controlled trial.

2015 ◽  
Vol 33 (3_suppl) ◽  
pp. 511-511
Author(s):  
Jianmin Xu ◽  
Jianguo Xia ◽  
Yan Gu ◽  
Jianjiang Lin ◽  
Kefeng Ding ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Liver Metastasis ◽  
Adjuvant Therapy ◽  
Disease Free Survival ◽  
Stage Ii ◽  
Stage Iii ◽  
Metachronous Liver Metastasis ◽  
Colorectal Cancer Resection ◽  
Multicenter Randomized Controlled Trial ◽  
Metastasis Rate

511 Background: To evaluate the addition of preoperative hepatic and regional arterial chemotherapy (PHRAC) on prognosis for stage II and III colorectal cancer in a multicenter setting. Methods: Patients with clinical stage II or stage III colorectal cancer (CRC) were randomly assigned to receive PHRAC plus adjuvant therapy (PHRAC arm) or adjuvant therapy alone (control arm). The primary end point was disease free survival (DFS). Second end points were incidence of metachronous liver metastasis, overall survival (OS) and safety. Results: A total of 688 patients from 5 centers of China were randomly assigned to each arm. Five-year DFS were 75% for PHRAC arm and 61% for control arm (HR 0.60; 95% CI, 0.45 to 0.80; p<0.001). Five-year liver-metastasis rate was 8% and 18% in PHRAC arm and control arm, respectively (HR 0.39; 95% CI, 0.24 to 0.64; p<0.001). Five-year OS was 81% in PHRAC arm and 72% in control arm (HR 0.59; 95% CI, 0.42 to 0.84; p=0.003). There were no significant differences in morbidity or mortality between two arms. The results of eligible patients were barely changed. Subgroup analysis shows differences of DFS, liver-metastasis rate and OS were significant in stage III patients, but not in stage II patients. Conclusions: Additional PHRAC could reduce the incidence of metachronous liver metastasis and improve DFS and OS in patients with stage III CRC, without compromising patient safety. Clinical trial information: NCT00643877.

Abstract 456: Increasing the Compression Velocity and Acceleration Improved the Quality of Simulated Chest Compression Under the Direction of Real Time Visual Feedback Device

Circulation ◽  
2019 ◽  
Vol 140 (Suppl_2) ◽  
Author(s):  
Yu Cao ◽  
Yarong He ◽  
Peng Yao
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
Linear Regression ◽  
Real Time ◽  
Visual Feedback ◽  
Chest Compression ◽  
Independent Risk Factor ◽  
Baseline Test ◽  
Independent Risk Factors

Background: To investigate whether a real-time visual feedback device could improve the quality of chest compression (CC), and, if so, whether the mechanism is associated with dynamic indexes such as velocity and acceleration. Methods: A self-control trial of 2-minutes CC on a manikin by trained rescuers compared the quality of CC without or with a visual feedback device. Demographic characteristics were recorded and CC metrics for the two tests were computed. Multivariable linear regression analyses were performed to examine the impact of variables on rate of qualified chest compression (RQCC). Multivariable logistic regression was performed to determine independent risk factors for achieving qualified chest compression (QCC) in the second test. Results: A total of 159 participants (average age: 29.36±9.0 years, 80 (50.3%) men) were recruited. RQCC of the second test was significantly greater than that of the baseline test. Multivariable linear regression analysis showed that maximum compression velocity (V compression ) and maximum compression velocity (a compression ) were independent risk factors for RQCC for both tests. The mean V compression and a compression of the second test were significantly greater than those of the baseline test. However, V compression was the only independent risk factor predicting QCC achievement during the second test. ROC curve analysis showed the area under curve (AUC) was0.84,and the optimal cut-offvalue ofV compression was 39.48 cm/s. Conclusions: Increasing the V compression and a compression might improve the quality of simulated CC and should be recommended to improve QCC. Only V compression was an independent risk factor for achieving QCC during CC with a visual feedback device.

Blood Transfusion is Associated with Infection and Increased Resource Utilization in Combat Casualties

2006 ◽  
Vol 72 (7) ◽  
pp. 619-626 ◽  
Author(s):  
James R. Dunne ◽  
Mark S Riddle ◽  
Janine Danko ◽  
Rich Hayden ◽  
Kyle Petersen
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
Blood Transfusion ◽  
Resource Utilization ◽  
Independent Risk Factor ◽  
Study Cohort ◽  
Icu Admission ◽  
Independent Risk Factors ◽  
Combat Casualties ◽  
Injured Patients

Combat casualty care has made significant advances in recent years, including administration of blood products in far-forward locations. However, recent studies have shown blood transfusion to be a significant risk factor for infection and increased resource utilization in critically injured patients. We therefore sought to investigate the incidence of blood transfusion and its association with infection and resource utilization in combat casualties. Prospective data were collected and retrospectively reviewed on 210 critically injured patients admitted to the USNS Comfort over a 7-week period during the 2003 assault phase of Operation Iraqi Freedom. Patients were stratified by age, gender, and injury severity score (ISS). Multivariate regression analyses were used to assess blood transfusion and hematocrit (HCT) as independent risk factors for infection and intensive care unit (ICU) admission controlling for age, gender, and ISS. The study cohort had a mean age of 30 ± 2 years, a mean ISS of 14 ± 3, 84 per cent were male, and 88 per cent sustained penetrating trauma. Blood transfusion was required in 44 per cent (n = 93) of the study cohort. Transfused patients had a higher ISS (18 ± 4 vs. 10 ± 3, P < 0.01), a higher pulse rate (105 ± 4 vs. 93 ± 3, P < 0.0001), and a lower admission HCT (27 ± 1 vs. 33 ± 2, P < 0.0001) compared with patients not transfused. Patients receiving blood transfusion had an increased infection rate (69% vs. 18%, P < 0.0001), ICU admission rate (52% vs. 21%, P < 0.0001), and ICU length of stay (6.7 ± 2.1 days vs. 1.4 ± 0.5 days, P < 0.0001) compared with nontransfused patients. However, there was no significant difference in mortality between transfused and nontransfused patients. Multivariate binomial regression analysis identified blood transfusion and HCT as independent risk factors for infection (P < 0.01) and blood transfusion as an independent risk factor for ICU admission (P < 0.05). Combat casualties have a high incidence of blood transfusion. Blood transfusion is an independent risk factor for infection and increased resource utilization. Therefore, consideration should be given to the use of alternative blood substitutes and recombinant human erythropoietin in the treatment and management of combat casualties.

scholarly journals The Impact of Graft Nephrectomy on Subsequent Transplants: Multivariate Analysis of Risk Factors for Second Graft Loss and for Multiple Transplantations–A Single-Center Retrospective Study

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Emmanouil Giorgakis ◽  
Asim Syed ◽  
Hector Gonzalez
Keyword(s):  
Risk Factors ◽  
Multivariate Analysis ◽  
Risk Factor ◽  
Retrospective Study ◽  
Independent Risk Factor ◽  
Graft Loss ◽  
Kaplan Meier ◽  
Independent Risk Factors ◽  
Allograft Loss ◽  
The Impact

Introduction. The management of a failed primary allograft remains unclear and the evidence of the effect of transplantectomy to future transplants conflicting. Aim of this study is to review the impact of failed primary graft nephrectomy on future transplants. Materials/Methods. Retrospective study of 101 patients retransplanted in a single institution. Median follow-up was 68 months. Patients were divided into two groups; G1 (n=49) was the nephrectomy group; G2 (n=52) was the graft in situ group. The patients’ and second graft survival were analysed with the Kaplan-Meier method. The patients’ and transplant characteristics were analyzed with student’s t-test. The retransplant risk factors and the risk factors for multiple transplants were obtained via a logistic regression model. Results. The odds of second graft loss post-transplantectomy were high (OR = 5.24). Demographics, HLA mismatch and first graft rejection rates were similar among the two groups and did not affect the outcome. Transplantectomy accelerated the loss of a future failing graft. Multivariate analysis showed transplantectomy as independent risk factor for second allograft loss. Transplantectomy and younger age are significant independent risk factors for future multiple transplants. Conclusion. Transplantectomy of the failed primary graft is an independent risk factor for retransplant loss and for multiple renal transplants.

scholarly journals The Association between Cardiopulmonary Resuscitation in Out-of-Hospital Settings and Chest Injuries: A Retrospective Observational Study

2018 ◽  
Vol 33 (2) ◽  
pp. 171-175 ◽  
Author(s):  
Wataru Takayama ◽  
Hazuki Koguchi ◽  
Akira Endo ◽  
Yasuhiro Otomo
Keyword(s):  
Risk Factors ◽  
Logistic Regression ◽  
Risk Factor ◽  
Cardiopulmonary Resuscitation ◽  
Observational Study ◽  
Independent Risk Factor ◽  
Retrospective Observational Study ◽  
Multivariate Logistic Regression ◽  
Chest Injuries ◽  
Independent Risk Factors

AbstractObjectivesThe aim of this study was to assess the risk of cardiopulmonary resuscitation (CPR) performed in out-of-hospital settings for chest injuries in patients with out-of-hospital cardiac arrest (OHCA).MethodsThis retrospective, observational study was conducted in an emergency critical care medical center in Japan. Non-traumatic OHCA patients transferred to the hospital from April 2013 through August 2016 were analyzed. The outcome was defined by chest injuries related to CPR, which is composite of rib fractures, sternal fractures, and pneumothoraces. A multivariate logistic regression analysis was performed to assess the independent risk factors for chest injuries related to CPR. The threshold of out-of-hospital CPR duration that increased risk of chest injuries was also assessed.ResultsA total of 472 patients were identified, of whom 233 patients sustained chest injuries. The multivariate logistic regression model showed that the independent risk factors for chest injuries were age and out-of-hospital CPR duration (age: AOR=1.06 [95% CI, 1.04 to 1.07]; out-of-hospital CPR duration: AOR=1.03 [95% CI, 1.01 to 1.05]). In-hospital CPR duration was not an independent risk factor for chest injuries. When the duration of out-of-hospital CPR extended over 15 minutes, the likelihood of chest injuries increased; however, this association was not statistically significant.ConclusionsLong duration of out-of-hospital CPR was an independent risk factor for chest injuries, possibly due to the difficulty of maintaining adequate quality of CPR. Further investigations to assess the efficacy of alternative CPR devices are expected in cases requiring long transportation times.TakayamaW, KoguchiH, EndoA, OtomoY. The association between cardiopulmonary resuscitation in out-of-hospital settings and chest injuries: a retrospective observational study. Prehosp Disaster Med. 2018;33(2):171–175.

scholarly journals Three-dimensional length from the center of the liver is a prognostic factor of colorectal cancer with liver metastasis: a retrospective analysis

2020 ◽  
Author(s):  
Jun Woo Bong ◽  
Yeonuk Ju ◽  
Jihyun Seo ◽  
Sang Hee Kang ◽  
Pyoung-Jae Park ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Risk Factors ◽  
Overall Survival ◽  
Risk Factor ◽  
Liver Metastasis ◽  
Resection Margin ◽  
Cox Regression ◽  
Significant Risk ◽  
Positive Resection Margin ◽  
Cox Regression Analysis

Abstract Background Resectability of liver metastasis is important to establish a treatment strategy for colorectal cancer patients. We aimed to evaluate the effect of distance from metastasis to the center of the liver on the resectability and patient outcomes after hepatectomy.Methods Clinical data of a total of 124 patients who underwent hepatectomy for colorectal cancer with liver metastasis were retrospectively reviewed. We measured the minimal length from metastasis to the bifurcation of the portal vein at the primary branch of the Glissonean tree and defined it as “Centrality”. Predictive effects on positive resection margin and overall survival of centrality were statistically analyzed.Results The value as a predictive factor for the positive resection margin of centrality was analyzed by the receiver operating characteristic curve (area under the curve = 0.72, P<0.001) and centrality ≤ 1.5 cm was an independent risk factor the positive resection margin in multivariate analysis. Total number of metastases ≥ 3 and centrality ≤ 1.5 cm were significant risk factors of overall survival after Cox regression analysis. Patients with these two risk factors (n=21) had worse 5-year overall survival (10.7%) than patients with one (n=35, 58.3%) or no risk factor (n=68, 69.2%).Conclusion Centrality was related with the positive resection margin of deeply located liver metastasis. Centrality should be considered to establish the surgical strategy for patients with advanced colorectal cancer with liver metastasis.

scholarly journals Factors and predictive model associated with perioperative complications after long fusion in the treatment of adult non-degenerative scoliosis

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Nan Wu ◽  
◽  
Jiashen Shao ◽  
Zhen Zhang ◽  
Shengru Wang ◽  
...  
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
Cobb Angle ◽  
Independent Risk Factor ◽  
Perioperative Complications ◽  
Posterior Instrumentation ◽  
Degenerative Scoliosis ◽  
Gastrointestinal Complications ◽  
Spinal Osteotomy ◽  
Independent Risk Factors

Abstract Introduction Adult non-degenerative scoliosis accounts for 90% of spinal deformities in young adults. However, perioperative complications and related risk factors of long posterior instrumentation and fusion for the treatment of adult non-degenerative scoliosis have not been adequately studied. Methods We evaluated clinical and radiographical results from 146 patients with adult non-degenerative scoliosis who underwent long posterior instrumentation and fusion. Preoperative clinical data, intraoperative variables, and perioperative radiographic parameters were collected to analyze the risk factors for perioperative complications. Potential and independent risk factors for perioperative complications were evaluated by univariate analysis and logistic regression analysis. Results One hundred forty-six adult non-degenerative scoliosis patients were included in our study. There were 23 perioperative complications for 21 (14.4%) patients, eight of which were cardiopulmonary complications, two of which were infection, six of which were neurological complications, three of which were gastrointestinal complications, and four of which were incision-related complication. The independent risk factors for development of total perioperative complications included change in Cobb angle (odds ratio [OR] = 1.085, 95% CI = 1.035 ~ 1.137, P = 0.001) and spinal osteotomy (OR = 3.565, 95% CI = 1.039 ~ 12.236, P = 0.043). The independent risk factor for minor perioperative complications is change in Cobb angle (OR = 1.092, 95% CI = 1.023 ~ 1.165, P = 0.008). The independent risk factors for major perioperative complications are spinal osteotomy (OR = 4.475, 95% CI = 1.960 ~ 20.861, P = 0.036) and change in Cobb angle (OR = 1.106, 95% CI = 1.035 ~ 1.182, P = 0.003). Conclusions Our study indicate that change in Cobb angle and spinal osteotomy are independent risk factors for total perioperative complications after long-segment posterior instrumentation and fusion in adult non-degenerative scoliosis patients. Change in Cobb angle is an independent risk factor for minor perioperative complications. Change in Cobb angle and spinal osteotomy are independent risk factors for major perioperative complications.

Clinical risk predictors for bradycardia, supraventricular tachycardia and epilepsy necessitating therapy in patients with unexplained syncope monitored by insertable cardiac monitor

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
T Onuki ◽  
M Shoji ◽  
M Kikuchi ◽  
T Asano ◽  
H Suzuki ◽  
...  
Keyword(s):  
Risk Factors ◽  
Atrial Fibrillation ◽  
Logistic Regression ◽  
Regression Analysis ◽  
Risk Factor ◽  
Independent Risk Factor ◽  
Sick Sinus Syndrome ◽  
Unexplained Syncope ◽  
Independent Risk Factors

Abstract Background Insertable cardiac monitors (ICMs) allow for lengthy monitoring of cardiac rhythm and improve diagnostic yield in patients with unexplained syncope. In most cardiac syncope cases, sick sinus syndrome, atrioventricular block, and paroxysmal supraventricular tachycardia (SVT) are detected using ICMs. On the other hand, epileptic seizures are sometimes diagnosed as unexplained syncope because in these situations, the loss of consciousness is a similar manifestation. Thus, the population of patients with unexplained syncope monitored by ICMs includes epileptic patients. Clinical risk factors for bradycardia, SVT and epilepsy that necessitate therapy in patients with unexplained syncope are not well known. If these risks can be clarified, clinicians could provide more specific targeted monitoring. Purpose We aimed to identify these predictors. Methods We retrospectively reviewed medical records of consecutive patients who received ICMs to monitor unexplained syncope in three medical facilities. We performed Cox's stepwise logistic regression analysis to identify significant independent risk factors for bradycardia, SVT, and epilepsy. Results One hundred thirty-two patients received ICMs to monitor unexplained syncope. During the 17-month follow-up period, 19 patients (10 patients had sick sinus syndrome and 9 had atrioventricular block) needed pacemaker for bradycardia; 8 patients (3 had atrial flutter, 4 had atrial tachycardia, and 1 had paroxysmal atrial fibrillation) needed catheter ablation for SVT; and 9 patients needed antiepileptic agents from the neurologist.Stepwise logistic regression analysis indicated that syncope during effort (odds ratio [OR] = 3.41; 95% confidence interval [CI], 1.21 to 9.6; p=0.02) was an independent risk factor for bradycardia. Palpitation before syncope (OR = 9.46; 95% CI, 1.78 to 50.10; p=0.008) and history of atrial fibrillation (OR = 10.1; 95% CI, 1.96 to 52.45; p=0.006) were identified as significant independent prognostic factors for SVT. Syncope while supine (OR = 11.7; 95% CI, 1.72 to 79.7; p=0.01) or driving (OR = 15.6; 95% CI, 2.10 to 115.3; p=0.007) was an independent factor for epileptic seizure. Conclusions ICMs are useful devices for diagnosing unexplained syncope. Palpitation, atrial fibrillation and syncope during effort were independent risk factors for bradycardia and for SVT. Syncope while supine or driving was an independent risk factor for epilepsy. We should carefully follow up of patients with these risk factors. Funding Acknowledgement Type of funding source: None

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