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Intermittent noninfarction Q waves: A finding suggestive of latent preexcitation
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* Objective: To describe 3 patients who presented with chest pain and intermittent Q waves on the electrocardiogram (ECG) and were subsequently found to have latent preexcitation.
* Patients and Methods: During a span of 8 years, 3 patients were evaluated because of atypical chest pain and pathologic Q waves in the inferior leads; in all 3 patients, the Q waves were intermittent. No patient had a history of arrhythmia or had Wolff-Parkinson-White pattern on the ECG. Diagnostic and therapeutic interventions for suspected myocardial infarction included cardiac catheterization in 2 patients, ...
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Absent septal Q waves in otherwise normal electrocardiograms--a variant of normal?
; ...except for absent septal Q waves to the number of patients with entirely normal ECGs...functional abnormalities in patients with absent septal Q waves have dealt primarily with...the absence of septal Q waves in patients whose ECGs are otherwise...
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Q waves predict mortality in myocardial infarction.(Tips)
; ...ECGs. Outcomes in the 10,244 patients with Q waves were compared with the 4,978...index (26 kg per [m.sup.2]). Patients with Q waves were significantly more likely...was significantly higher in patients with Q waves (10 versus 7 percent). This...
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Associations between different status of myocardial ischemia and ischemia-related negative or positive epicardial U-waves: Observations during coronary angioplasty
; ...of ischemia-related U waves were also evaluated. Among 63 patients with intracoronary ECGs adequate for analysis of U waves, there were 26 patients showing a change of the...fusion of the T and U waves (8 patients), and difficulty in identifying...
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Clinical significance of the disappearance of septal Q waves after the onset of myocardial infarction: Correlation with location of responsible coronary lesions
; ...the MI. Septal Q waves were detectable before MI in 56 patients and disappeared...branch (S 1 ) in 13 patients (76%). Disappearance of septal Q waves following MI predicted...the MI in some patients. The disappearance of septal Q waves suggests either...
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Early negative T waves in acute coronary events: have we advanced our knowledge?
; ...viability is Q waves. Q waves were more prevalent among patients without NTWs...relationship between T waves and creatine kinase...dobutamine stress, in patients with and those...in as few as 23 patients-those who had new Q waves (Table 1). Although...
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T wave alternans in patients with cardiac sarcoidosis
; ...report on T wave alternans (TWA) in patients with cardiac sarcoidosis. In this study, we investigated TWA in patients with cardiac sarcoidosis. Electrocardiographic...recording for TWA was performed in 6 patients, using the CH2000 (Cambridge Heart...
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A comparison of p-wave duration and dispersion in patients with short-term and long-term atrial fibrillation
; ...wave duration and dispersion (PD) in patients with short-term (< or =48 hours) and...cardioversion. We studied 96 consecutive patients with short-term (group A; n:51, age...duration and dispersion is prolonged in patients with long-term AF compared to short-term...
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The Relationship Between Bilateral Spike and Wave Complexes and Focal Discharges in Patients with Partial Epilepsy
; ...the epileptic condition itself. Also excluded were patients with benign epilepsy of childhood with centrotemporal...expected to have BSW2). Included in this study were patients who most recently had focal or partial epilepsy, (electrographically...than 2 yrs. In the Uncontrolled group (U) were 150 ...
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The EEG Profile of Patients with Uncontrolled vs. Controlled Seizures
; ...Uncontrolled Slow Waves Spikes ABSTRACT The...an EEG profile of patients (150) with uncontrolled...to bilateral slow waves varied between 4...in predicting if patients with focal epilepsy...non-controversial sharp waves or spikes) in the...2000mg) were used in patients who could not ...
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EEG in Seizure Prognosis: Association of Slow Wave Activity and Other Factors in Patients with Apparent Misleading Epileptiform Findings
; ...Epilepsy Seizure Sharp Waves Slow Waves Spikes ABSTRACT...study showed that patients with many spikes...with delta slow waves, but without spikes...more often seen in patients with uncontrolled...noncontroversial sharp waves or spikes) in the...2000mg) were used in patients ...
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