No abstract available.
Headache ; Injections, Epidural ; Pneumocephalus

Subjective memory impairment (SMI) is now increasingly recognized as a risk factor of progression to dementia. This study investigated gray and white matter changes in the brains of SMI patients compared with normal controls and mild cognitive impairment (MCI) patients. We recruited 28 normal controls, 28 subjects with SMI, and 29 patients with MCI aged 60 or older. We analyzed gray and white matter changes using a voxel-based morphometry (VBM), hippocampal volumetry and regions of interest in diffusion tensor imaging (DTI). DTI parameters of corpus callosum and cingulum in SMI showed more white matter changes compared with those in normal controls, they were similar to those in MCI except in the hippocampus, which showed more degenerations in MCI. In VBM, SMI showed atrophy in the frontal, temporal, and parietal lobes compared with normal controls although it was not as extensive as that in MCI. Patients with SMI showed gray and white matter degenerations, the changes were distinct in white matter structures. SMI might be the first presenting symptom within the Alzheimer's disease continuum when combined with additional risk factors and neurodegenerative changes.
Aged ; Brain/*pathology ; Diagnosis, Differential ; Diffusion Tensor Imaging/methods ; Female ; Gray Matter/*pathology ; Humans ; Male ; Memory Disorders/*diagnosis/etiology ; Mild Cognitive Impairment/complications/*diagnosis ; Neurodegenerative Diseases/complications/*pathology ; Reference Values ; Reproducibility of Results ; Sensitivity and Specificity ; White Matter/*pathology

BACKGROUND AND PURPOSE: The "closing-in" phenomenon refers to the tendency to copy near or overlap a model while performing figure-copying tasks. The mechanisms underlying the closing-in phenomenon have not been fully elucidated, and previous studies only investigated the mechanisms through neuropsychological tests. We investigated the neuroanatomical correlates of the closing-in phenomenon using voxel-based morphometry (VBM). METHODS: Thirty-eight patients diagnosed with probable Alzheimer's disease (AD) and 21 normal controls were included. All subjects underwent neuropsychological testing to diagnose dementia and magnetization prepared rapid acquisition gradient echo brain magnetic resonance imaging for the voxel-based statistical analysis. The subjects were asked to copy the modified Luria's alternating squares and triangles to quantify the closing-in phenomenon. We applied SPM8 for the VBM analysis to detect gray matter loss associated with the closing-in phenomenon. RESULTS: The patients with probable AD showed a higher closing-in score than that of the normal control subjects (p<0.0001). The VBM analysis revealed more parietal and temporal atrophy in the patients with AD than that in the normal control group. Moreover, atrophy of the orbito-frontal area was associated with the closing-in phenomenon. CONCLUSIONS: The closing-in phenomenon is dysfunction while performing figure-copying tasks and is more common in patients with AD. The analysis of the orbito-frontal area, which is associated with inhibiting primitive reflexes, revealed that the closing-in phenomenon is an imitation behavior commonly observed in patients with frontal lobe damage.
Alzheimer Disease ; Atrophy ; Brain ; Dementia ; Frontal Lobe ; Humans ; Magnetic Resonance Imaging ; Neuropsychological Tests ; Rabeprazole ; Reflex

BACKGROUND:The accelerated diagnostic protocol(ADP)using the Emergency Department Assessment of Chest pain Score(EDACS-ADP),a tool to identify patients at low risk of a major adverse cardiac event(MACE)among patients presenting with chest pain to the emergency department,was developed using a contemporary troponin assay.This study was performed to validate and compare the performance of the EDACS-ADP incorporating high-sensitivity cardiac troponin I between patients who had a 30-day MACE with and without unstable angina(MACE I and Ⅱ,respectively). METHODS:A single-center prospective observational study of adult patients presenting with chest pain suggestive of acute coronary syndrome was performed.The performance of EDACS-ADP in predicting MACE was assessed by calculating the sensitivity and negative predictive value. RESULTS:Of the 1,304 patients prospectively enrolled,399(30.6％;95％confidence interval[95％CI]:27.7％-33.8％)were considered low-risk using the EDACS-ADP.Among them,the rates of MACE I andⅡ were 1.3％(5/399)and 1.0％(4/399),respectively.The EDACS-ADP showed sensitivities and negative predictive values of 98.8％(95％CI:97.2％-99.6％)and 98.7％(95％CI:97.0％-99.5％)for MACE I and 98.7％(95％CI:96.8％-99.7％)and 99.0％(95％CI:97.4％-99.6％)for MACE Ⅱ,respectively. CONCLUSION:EDACS-ADP could help identify patients as safe for early discharge.However,when unstable angina was added to the outcome,the 30-day MACE rate among the designated low-risk patients remained above the level acceptable for early discharge without further evaluation.

BACKGROUND:The accelerated diagnostic protocol(ADP)using the Emergency Department Assessment of Chest pain Score(EDACS-ADP),a tool to identify patients at low risk of a major adverse cardiac event(MACE)among patients presenting with chest pain to the emergency department,was developed using a contemporary troponin assay.This study was performed to validate and compare the performance of the EDACS-ADP incorporating high-sensitivity cardiac troponin I between patients who had a 30-day MACE with and without unstable angina(MACE I and Ⅱ,respectively). METHODS:A single-center prospective observational study of adult patients presenting with chest pain suggestive of acute coronary syndrome was performed.The performance of EDACS-ADP in predicting MACE was assessed by calculating the sensitivity and negative predictive value. RESULTS:Of the 1,304 patients prospectively enrolled,399(30.6％;95％confidence interval[95％CI]:27.7％-33.8％)were considered low-risk using the EDACS-ADP.Among them,the rates of MACE I andⅡ were 1.3％(5/399)and 1.0％(4/399),respectively.The EDACS-ADP showed sensitivities and negative predictive values of 98.8％(95％CI:97.2％-99.6％)and 98.7％(95％CI:97.0％-99.5％)for MACE I and 98.7％(95％CI:96.8％-99.7％)and 99.0％(95％CI:97.4％-99.6％)for MACE Ⅱ,respectively. CONCLUSION:EDACS-ADP could help identify patients as safe for early discharge.However,when unstable angina was added to the outcome,the 30-day MACE rate among the designated low-risk patients remained above the level acceptable for early discharge without further evaluation.

BACKGROUND:The accelerated diagnostic protocol(ADP)using the Emergency Department Assessment of Chest pain Score(EDACS-ADP),a tool to identify patients at low risk of a major adverse cardiac event(MACE)among patients presenting with chest pain to the emergency department,was developed using a contemporary troponin assay.This study was performed to validate and compare the performance of the EDACS-ADP incorporating high-sensitivity cardiac troponin I between patients who had a 30-day MACE with and without unstable angina(MACE I and Ⅱ,respectively). METHODS:A single-center prospective observational study of adult patients presenting with chest pain suggestive of acute coronary syndrome was performed.The performance of EDACS-ADP in predicting MACE was assessed by calculating the sensitivity and negative predictive value. RESULTS:Of the 1,304 patients prospectively enrolled,399(30.6％;95％confidence interval[95％CI]:27.7％-33.8％)were considered low-risk using the EDACS-ADP.Among them,the rates of MACE I andⅡ were 1.3％(5/399)and 1.0％(4/399),respectively.The EDACS-ADP showed sensitivities and negative predictive values of 98.8％(95％CI:97.2％-99.6％)and 98.7％(95％CI:97.0％-99.5％)for MACE I and 98.7％(95％CI:96.8％-99.7％)and 99.0％(95％CI:97.4％-99.6％)for MACE Ⅱ,respectively. CONCLUSION:EDACS-ADP could help identify patients as safe for early discharge.However,when unstable angina was added to the outcome,the 30-day MACE rate among the designated low-risk patients remained above the level acceptable for early discharge without further evaluation.

BACKGROUND:The accelerated diagnostic protocol(ADP)using the Emergency Department Assessment of Chest pain Score(EDACS-ADP),a tool to identify patients at low risk of a major adverse cardiac event(MACE)among patients presenting with chest pain to the emergency department,was developed using a contemporary troponin assay.This study was performed to validate and compare the performance of the EDACS-ADP incorporating high-sensitivity cardiac troponin I between patients who had a 30-day MACE with and without unstable angina(MACE I and Ⅱ,respectively). METHODS:A single-center prospective observational study of adult patients presenting with chest pain suggestive of acute coronary syndrome was performed.The performance of EDACS-ADP in predicting MACE was assessed by calculating the sensitivity and negative predictive value. RESULTS:Of the 1,304 patients prospectively enrolled,399(30.6％;95％confidence interval[95％CI]:27.7％-33.8％)were considered low-risk using the EDACS-ADP.Among them,the rates of MACE I andⅡ were 1.3％(5/399)and 1.0％(4/399),respectively.The EDACS-ADP showed sensitivities and negative predictive values of 98.8％(95％CI:97.2％-99.6％)and 98.7％(95％CI:97.0％-99.5％)for MACE I and 98.7％(95％CI:96.8％-99.7％)and 99.0％(95％CI:97.4％-99.6％)for MACE Ⅱ,respectively. CONCLUSION:EDACS-ADP could help identify patients as safe for early discharge.However,when unstable angina was added to the outcome,the 30-day MACE rate among the designated low-risk patients remained above the level acceptable for early discharge without further evaluation.

BACKGROUND:The accelerated diagnostic protocol(ADP)using the Emergency Department Assessment of Chest pain Score(EDACS-ADP),a tool to identify patients at low risk of a major adverse cardiac event(MACE)among patients presenting with chest pain to the emergency department,was developed using a contemporary troponin assay.This study was performed to validate and compare the performance of the EDACS-ADP incorporating high-sensitivity cardiac troponin I between patients who had a 30-day MACE with and without unstable angina(MACE I and Ⅱ,respectively). METHODS:A single-center prospective observational study of adult patients presenting with chest pain suggestive of acute coronary syndrome was performed.The performance of EDACS-ADP in predicting MACE was assessed by calculating the sensitivity and negative predictive value. RESULTS:Of the 1,304 patients prospectively enrolled,399(30.6％;95％confidence interval[95％CI]:27.7％-33.8％)were considered low-risk using the EDACS-ADP.Among them,the rates of MACE I andⅡ were 1.3％(5/399)and 1.0％(4/399),respectively.The EDACS-ADP showed sensitivities and negative predictive values of 98.8％(95％CI:97.2％-99.6％)and 98.7％(95％CI:97.0％-99.5％)for MACE I and 98.7％(95％CI:96.8％-99.7％)and 99.0％(95％CI:97.4％-99.6％)for MACE Ⅱ,respectively. CONCLUSION:EDACS-ADP could help identify patients as safe for early discharge.However,when unstable angina was added to the outcome,the 30-day MACE rate among the designated low-risk patients remained above the level acceptable for early discharge without further evaluation.

BACKGROUND:The accelerated diagnostic protocol(ADP)using the Emergency Department Assessment of Chest pain Score(EDACS-ADP),a tool to identify patients at low risk of a major adverse cardiac event(MACE)among patients presenting with chest pain to the emergency department,was developed using a contemporary troponin assay.This study was performed to validate and compare the performance of the EDACS-ADP incorporating high-sensitivity cardiac troponin I between patients who had a 30-day MACE with and without unstable angina(MACE I and Ⅱ,respectively). METHODS:A single-center prospective observational study of adult patients presenting with chest pain suggestive of acute coronary syndrome was performed.The performance of EDACS-ADP in predicting MACE was assessed by calculating the sensitivity and negative predictive value. RESULTS:Of the 1,304 patients prospectively enrolled,399(30.6％;95％confidence interval[95％CI]:27.7％-33.8％)were considered low-risk using the EDACS-ADP.Among them,the rates of MACE I andⅡ were 1.3％(5/399)and 1.0％(4/399),respectively.The EDACS-ADP showed sensitivities and negative predictive values of 98.8％(95％CI:97.2％-99.6％)and 98.7％(95％CI:97.0％-99.5％)for MACE I and 98.7％(95％CI:96.8％-99.7％)and 99.0％(95％CI:97.4％-99.6％)for MACE Ⅱ,respectively. CONCLUSION:EDACS-ADP could help identify patients as safe for early discharge.However,when unstable angina was added to the outcome,the 30-day MACE rate among the designated low-risk patients remained above the level acceptable for early discharge without further evaluation.

BACKGROUND:The accelerated diagnostic protocol(ADP)using the Emergency Department Assessment of Chest pain Score(EDACS-ADP),a tool to identify patients at low risk of a major adverse cardiac event(MACE)among patients presenting with chest pain to the emergency department,was developed using a contemporary troponin assay.This study was performed to validate and compare the performance of the EDACS-ADP incorporating high-sensitivity cardiac troponin I between patients who had a 30-day MACE with and without unstable angina(MACE I and Ⅱ,respectively). METHODS:A single-center prospective observational study of adult patients presenting with chest pain suggestive of acute coronary syndrome was performed.The performance of EDACS-ADP in predicting MACE was assessed by calculating the sensitivity and negative predictive value. RESULTS:Of the 1,304 patients prospectively enrolled,399(30.6％;95％confidence interval[95％CI]:27.7％-33.8％)were considered low-risk using the EDACS-ADP.Among them,the rates of MACE I andⅡ were 1.3％(5/399)and 1.0％(4/399),respectively.The EDACS-ADP showed sensitivities and negative predictive values of 98.8％(95％CI:97.2％-99.6％)and 98.7％(95％CI:97.0％-99.5％)for MACE I and 98.7％(95％CI:96.8％-99.7％)and 99.0％(95％CI:97.4％-99.6％)for MACE Ⅱ,respectively. CONCLUSION:EDACS-ADP could help identify patients as safe for early discharge.However,when unstable angina was added to the outcome,the 30-day MACE rate among the designated low-risk patients remained above the level acceptable for early discharge without further evaluation.