How to Trip Rapid Review

Step 1: Select articles relevant to your search (remember the system is only optimised for single intervention studies)

Step 2: press

Step 3: review the result, and maybe amend the or if you know better! If we're unsure of the overall sentiment of the trial we will display the conclusion under the article title. We then require you to tell us what the correct sentiment is.

8,375 results for

T Wave

by
...
Latest & greatest
Alerts

Export results

Use check boxes to select individual results below

SmartSearch available

Trip's SmartSearch engine has discovered connected searches & results. Click to show

1. Twenty-Four-Hour Measures of Heart Rate-Corrected QT Interval, Peak-to-End of the T-Wave, and Peak-to-End of the T-Wave/Corrected QT Interval Ratio During Antipsychotic Treatment. (Abstract)

Twenty-Four-Hour Measures of Heart Rate-Corrected QT Interval, Peak-to-End of the T-Wave, and Peak-to-End of the T-Wave/Corrected QT Interval Ratio During Antipsychotic Treatment. Prolonged ventricular repolarization, measured by heart rate-corrected QT interval (QTc) prolongation, might be a biomarker for risk of torsade de pointes (TdP) and sudden cardiac death. However, the predictive value of QTc has been challenged, and a component of QTc, peak-to-end of the T-wave (Tpe), and a high Tpe/QT

2019 Journal of Clinical Psychopharmacology

2. Do patients with LBBB and STEMI, when reperfused, develop T-wave inversion (reperfusion T-waves)?

Do patients with LBBB and STEMI, when reperfused, develop T-wave inversion (reperfusion T-waves)? Dr. Smith's ECG Blog: Do patients with LBBB and STEMI, when reperfused, develop T-wave inversion (reperfusion T-waves)? Friday, January 20, 2017 The case below was contributed by Pendell Meyers, an EM G1 at Mt. Sinai (the case did not come from Mt. Sinai though!) Pendell is the lead author on our . Meyers HP. Limkakeng AT. Jaffa EJ. Patel A. Theiling BJ. Rezaie SR. Stewart T. Zhuang C. Pera VK (...) . Smith SW . Validation of the Modified Sgarbossa Rule for Diagnosis of STEMI in the Presence of Left Bundle Branch Block. American Heart Journal 170(6):1255-1264; December 2015. Before the case, a few comments: Pendell and I just published a case report of a patient with left bundle branch block who presented with chest pain that then resolved. His ED ECG showed his baseline LBBB, with no evidence of MI. Over the ensuing hours, he developed classic T-wave inversion of Wellens' syndrome

2017 Dr Smith's ECG Blog

3. Usefulness of upright T wave in lead aVR for predicting short-term prognosis of patients with ischemic stroke Full Text available with Trip Pro

Usefulness of upright T wave in lead aVR for predicting short-term prognosis of patients with ischemic stroke Upright T wave in lead aVR (TaVR) has recently been reported to be associated with cardiovascular death and mortality in general population and in patients with prior cardiovascular disease (CVD). However, the evidence for the predictive ability of TaVR in patients with ischemic stroke (IS) is lacking.A total of 625 consecutive patients with IS (mean age: 66 ± 12 years; 379 male) were (...) prolongation > 450 ms, higher rate of negative T in lead II, higher rate of negative T in lead V6, higher rate of ST depression, and longer QTc duration. During the mean follow-up period of 20.0 ± 5.8 months, 29 (4.6%) patients experienced all-cause death and 12 (1.9%) patients experienced cardiovascular death, the primary end point. Concomitantly, 94 (15%) patients experienced recurrence of IS, the secondary end point. After adjusting for clinical covariates, upright TaVR was independently associated

2018 Chronic diseases and translational medicine

4. Frequency of Inverted Electrocardiographic T Waves (Cerebral T Waves) in Patients With Acute Strokes and Their Relation to Left Ventricular Wall Motion Abnormalities. (Abstract)

Frequency of Inverted Electrocardiographic T Waves (Cerebral T Waves) in Patients With Acute Strokes and Their Relation to Left Ventricular Wall Motion Abnormalities. Transient, symmetric, and deep inverted electrocardiogram (ECG) T waves in the setting of stroke, commonly referred to as cerebral T waves, are rare, and the underlying mechanism is unclear. Our study aimed to test the hypothesis that cerebral T waves are associated with transient cardiac dysfunction. This retrospective study (...) included 800 patients admitted with the primary diagnosis of hemorrhagic or ischemic stroke. ECGs were examined for cerebral T waves, defined as T-wave inversion of ≥5 mm depth in ≥4 contiguous precordial leads. Echocardiograms of those meeting these criteria were examined for the presence of left ventricular (LV) wall motion abnormalities. Follow-up evaluation included both ECG and echocardiogram. Of the 800 patients, 17 had cerebral T waves on ECG (2.1%). All 17 patients had ischemic strokes

2017 American Journal of Cardiology

5. T Wave Safety Margin during the Process of ICD Implantation As a Novel Predictor of T Wave Oversensing Full Text available with Trip Pro

T Wave Safety Margin during the Process of ICD Implantation As a Novel Predictor of T Wave Oversensing Introduction: T wave oversensing (TWOS) is a major drawback of implantable cardioverter defibrillator (ICD) and data on predictors of TWOS in ICD is limited. We aimed to calculate a novel index of T wave safety margin (TWSM) and assess its potential for evaluating TWOS during the procedure of ICD implantation. Methods and Results: Thirty-two consecutive patients with ICD implantation were (...) enrolled. During each procedure of ICD implantation, different ICD generators were connected to implanted sensing lead through active-fixation leads and bridging cables. R and T wave amplitudes were measured on ICD printouts according to the gain. The ICDs were programed to the most sensitive settings to reveal possible TWOS. A novel index TWSM was calculated according to the corresponding sensing algorithm of ICD. There was discrepancy of R wave amplitudes measured by different ICDs (P < 0.01

2017 Frontiers in physiology

6. Among patients with left bundle branch block, T-wave peak to T-wave end time is prolonged in the presence of acute coronary occlusion. (Abstract)

Among patients with left bundle branch block, T-wave peak to T-wave end time is prolonged in the presence of acute coronary occlusion. Assessing the effect of myocardial ischemia on ventricular repolarization in the setting of left bundle branch block (LBBB) poses a challenge due to secondary prolongation of the QT interval inherent in LBBB. The T-wave peak to T-wave end (TpTe) interval has been noted to prolong during myocardial ischemia and correct after reperfusion in patients with normal

2017 International journal of cardiology

7. Body surface distribution of T wave alternans is modulated by heart rate and ventricular activation sequence in patients with cardiomyopathy. Full Text available with Trip Pro

Body surface distribution of T wave alternans is modulated by heart rate and ventricular activation sequence in patients with cardiomyopathy. T wave alternans (TWA) is an electrocardiographic marker of heightened sudden death risk from ventricular tachyarrhythmias in patients with cardiomyopathy. TWA is evaluated from the 12-lead electrocardiogram, Frank lead, or Holter lead recordings, however these clinical lead configurations will not record TWA from adjacent regions of the body torso.We

2019 PLoS ONE

8. Two cases texted to me for concern of inferior hyperacute T waves and a flipped T in aVL - do either, neither, or both need emergent reperfusion?

Two cases texted to me for concern of inferior hyperacute T waves and a flipped T in aVL - do either, neither, or both need emergent reperfusion? Dr. Smith's ECG Blog: Two cases texted to me for concern of inferior hyperacute T waves and a flipped T in aVL - do either, neither, or both need emergent reperfusion? Monday, November 12, 2018 Written by Pendell Meyers I received two texts recently, in both cases the practitioners were worried about possible inferior hyperacute T-waves (...) with an inverted T-wave in aVL. I was not given any clinical history. What would you tell the team in these two cases? Case 1 Case 2 My responses: Case 1: "Not hyperacute. The T-wave in aVL is likely that way at baseline, send baseline if available. What's the story?" Case 2: "Agree with concern for inferior posterior. This is almost completely diagnostic barring an identical baseline. What's the story?" Did you agree with my assessments? Why do I say that Case 1 is not hyperacute and Case 2 is? Was I even

2018 Dr Smith's ECG Blog

9. Reduced T wave alternans in heart failure responders to cardiac resynchronization therapy: Evidence of electrical remodeling. Full Text available with Trip Pro

Reduced T wave alternans in heart failure responders to cardiac resynchronization therapy: Evidence of electrical remodeling. T-wave alternans (TWA), a marker of electrical instability, can be modulated by cardiac resynchronization therapy (CRT). The relationship between TWA and heart failure response to CRT has not been clearly defined.In 40-patients (age 65±11 years, left ventricular ejection-fraction [LVEF] 23±7%), TWA was evaluated prospectively at median of 2 months (baseline) and 8 months

2018 PLoS ONE

10. Microvolt T-wave alternans and autonomic nervous system parameters can be helpful in the identification of low-arrhythmic risk patients with ischemic left ventricular systolic dysfunction. Full Text available with Trip Pro

Microvolt T-wave alternans and autonomic nervous system parameters can be helpful in the identification of low-arrhythmic risk patients with ischemic left ventricular systolic dysfunction. The role of implantable cardioverter-defibrillator (ICD) placement in the primary prevention of sudden cardiac death (SCD) in all consecutive patients with left ventricular ejection fraction (LVEF) ≤ 35% is still a matter of hot debate due to the fact that the population of these patients is highly (...) -known, non-invasive parameters, such as microvolt T-wave alternans (MTWA), baroreflex sensitivity (BRS) and short-term heart rate variability (HRV), can be helpful in the identification of low-arrhythmic risk patients with ischemic left ventricular systolic dysfunction.In 141 patients with coronary artery disease and LVEF ≤ 35%, MTWA testing, as well as BRS and short-term HRV parameters, were analysed. During 34 ± 13 months of follow-up 37 patients had arrhythmic episode (EVENT): SCD, non-fatal

2018 PLoS ONE

11. de Winter's T-waves evolve into Wellens' waves

de Winter's T-waves evolve into Wellens' waves Dr. Smith's ECG Blog: de Winter's T-waves evolve into Wellens' waves Monday, June 19, 2017 This comes from a paramedic in Hungary named Farkas László: This patient had chest pain that then resolved: There is diffuse ST depression, with ST Elevation in aVR and a hyperacute T-wave in lead V3 V3 is likely a de Winter's T-wave (ST depression with large upright T-wave) Since this T-wave is not obviously massive, one might think this is a posterior MI (...) (right precordial ST depression) or simply diffuse subendocardial ischemia (diffuse ST depression with STE in aVR). 11 minutes later, the chest pain was gone, suggesting spontaneous reperfusion (autolysis of thrombus). This ECG was recorded: All ST depression in V3 is gone Only residual ST depression remains The T-waves in V2 and V3 are smaller This rules out posterior MI: as an artery reperfuses in posterior MI, the T-wave gets larger! (Posterior reperfusion T-waves) See posterior reperfusion T

2017 Dr Smith's ECG Blog

12. An ECG sent to me with concern for hyperacute T-waves

An ECG sent to me with concern for hyperacute T-waves Dr. Smith's ECG Blog: An ECG sent to me with concern for hyperacute T-waves Monday, August 26, 2019 Written by Pendell Meyers A woman in her 70s with diabetes, hypertension, and hyperlipidemia suddenly developed nausea, diaphoresis, and brief syncope while eating at a restaurant. She did not report any chest pain or pressure. She was brought to the Emergency Department and this ECG was recorded while she was still feeling nauseous but denied (...) chest pain, shortness of breath, or other symptoms: What do you think? No baseline was available for comparison. Sinus rhythm Grossly normal QRS complex Less than 1mm STE in II, III, and aVF, as well as V4-6, all with extremely upward concavity aVL has the smallest possible amount of STD in aVL with a shallow negative T-wave The T-waves in the inferior leads seem to have potentially large amplitude compared to their QRS complexes STEMI criteria are not met Although inferior OMI commonly presents

2019 Dr Smith's ECG Blog

13. Do you understand these T-wave inversions?

Do you understand these T-wave inversions? Dr. Smith's ECG Blog: Do you understand these T-wave inversions? Thursday, October 10, 2019 Case submitted and written by Alex Bracey, with edits by Pendell Meyers A man in his 50s without prior medical history was sent to the emergency department from an urgent care facility for concern of an "abnormal ECG" after he had complained of chest pain earlier in the day. He was symptom free at the time of arrival. Here is the triage ECG at the Emergency (...) of findings starting with terminal T-wave inversions ("type A") and progressing to full T-wave inversions ("type B"). My analogy for this misunderstanding of Wellens syndrome that I tell my residents is this: "Imagine you were an alien looking through a microscope and you discovered Earth. You zoom in to a city and look at a single street and you see humans, which happens to be a woman walking with her small child. You watch them for a few hours and then report your findings to your fellow aliens: you

2019 Dr Smith's ECG Blog

14. Anterior STEMI Evolves to de Winter's T-waves

Anterior STEMI Evolves to de Winter's T-waves Dr. Smith's ECG Blog: Anterior STEMI Evolves to de Winter's T-waves Saturday, January 19, 2019 A middle-aged man called EMS for chest pain. This prehospital ECG was recorded: Obvious Anterior STEMI due to proximal LAD occlusion (with STE in aVL and reciprocal STD in inferior leads). On arrival to the ED, this ECG was recorded 10 minutes later: Almost all STE is gone, but the hyperacute T-waves remain While waiting for the cath team (...) , this was recorded 30 minutes after 2nd ECG: Now there are classic de Winter's T-waves. This shows the dynamic nature of coronary thrombus. Presumably, the thrombus had autolysis to a very small degree, allowing a trickle of blood flow through the LAD, enough to eliminate the ST elevation. The patient was found to have a 100% proximal LAD occlusion. By the time of the angiogram, which is never at the same the time as the ECG, there was not even a trickle of blood. See this related post, with discussion of de

2019 Dr Smith's ECG Blog

15. 15 yo AAM with ST Elevation and T-wave Inversion. Hypertrophic Cardiomyopathy or Normal ("Variant")?

15 yo AAM with ST Elevation and T-wave Inversion. Hypertrophic Cardiomyopathy or Normal ("Variant")? Dr. Smith's ECG Blog: 15 yo AAM with ST Elevation and T-wave Inversion. Hypertrophic Cardiomyopathy or Normal ("Variant")? Wednesday, January 2, 2019 Is this normal or hypertrophic cardiomyopathy (HOCM)? The mother of a 15 yo African American male brought her son to the clinic for a sports physical. There was a family history of sudden death. The clinic recorded this ECG and was alarmed: Should (...) him and recorded this ECG, which is slightly different but within normal day to day variation: There is also "Sinus arrhythmia" (varying sinus rate) V4 is classic benign "variant" and is the most recognizable lead in this ECG morphology. This has been called "Benign T-wave Inversion" BTWI) in this blog, as Chou named it in his textbook. BTWI is a normal variant associated with early repolarization. He reviewed ECGs from all 11,424 patients who had at least one recorded during 2007 at and set aside

2019 Dr Smith's ECG Blog

16. Dynamic, Reversible, Ischemic T-wave inversion mimics Wellens'. All trops negative.

Dynamic, Reversible, Ischemic T-wave inversion mimics Wellens'. All trops negative. Dr. Smith's ECG Blog: Dynamic, Reversible, Ischemic T-wave inversion mimics Wellens'. All trops negative. Friday, December 14, 2018 A middle-aged man presented with 7-8/10 non-radiating chest tightness to the left chest wall, associated with nausea but no diaphoresis, that began while walking approximately 40 minutes prior to arrival at the ED. The pain resolved as he arrived to the emergency department. He had (...) , Pattern A, with terminal T-wave inversion in V2-V4, preserved R-waves, and it appears to be Wellens' syndrome, as it occurred after resolution of typical angina pain. We assumed this was Wellens' syndrome and treated as such. Wellens' syndrome represents the aftermath of an unrecorded occlusion (STEMI) with spontaneous reperfusion. Wellens' waves are "reperfusion T-waves" and are identical to the T-waves seen after therapeutic reperfusion. If true Wellens', they always are associated with slightly

2019 Dr Smith's ECG Blog

17. Large T-waves and a Computer Interpretation of ***Acute MI***

Large T-waves and a Computer Interpretation of ***Acute MI*** Dr. Smith's ECG Blog: Large T-waves and a Computer Interpretation of ***Acute MI*** Saturday, November 24, 2018 This ECG was texted to me with no information: I answered: "Show me the whole 12-lead." Here it is: Computer Interpretation: SINUS RHYTHM INFERIOR MYOCARDIAL INFARCTION, POSSIBLY ACUTE ST ELEVATION, CONSIDER ANTERIOR INJURY [MARKED ST ELEVATION W/O NORMALLY INFLECTED T WAVE IN V2-V5] ***ACUTE MI*** What do you think (...) ? This was my answer, in which I suspected that he was worried about possible hyperacute T-waves: "I suspect these do not represent hyperacute T waves. Although the T-waves tower over the R-waves, they have extreme upward concavity. Although MI can easily have upward concavity, it is not usually this pronounced. If it is a chest pain patient, I would get a formal echo and serial ECGs. And look for an old EKG." They found this old one scanned into the chart from a stress test. There were no others: Notice

2019 Dr Smith's ECG Blog

18. ST Depression and T-wave inversion in V2 and V3.

ST Depression and T-wave inversion in V2 and V3. Dr. Smith's ECG Blog: ST Depression and T-wave inversion in V2 and V3. Tuesday, February 12, 2019 A middle aged male dialysis patient was found disorganized and paranoid. He had no chest pain or dyspnea. An ECG was recorded. The clinician was worried about his ECG and showed it to me: What do you think? When I saw this ECG, I immediately recognized right ventricular hypertrophy as the cause of the ST depression and T-wave inversion in leads V2 (...) and V3. In other words, I was certain that this was a chronic finding on the ECG. The worried clinician stated there are no old ECGs to compare with, and no records. I remained certain that this was RVH as the findings are classic: Large R-wave in V1, large S-wave in lead I, and typical right precordial ST-T that mimic posterior STEMI. If the QRS were normal, and the patient had chest pain, I would have said this was posterior MI, or possibly hypokalemia (see this post: ). Later, however, we found

2019 Dr Smith's ECG Blog

19. Assessment of the ECG T-Wave in Patients With Subarachnoid Hemorrhage. (Abstract)

Assessment of the ECG T-Wave in Patients With Subarachnoid Hemorrhage. Prolongation of the interval from the peak to the end of the T wave (Tp-Te) on a 12-lead electrocardiogram (ECG) is associated with ventricular arrhythmias. The aim of this study was to clarify associations between Tp-Te, Tp-Te/QT, and Tp-Te/rate-corrected QT (QTc) with clinical severity of subarachnoid hemorrhage (SAH) and clinical outcomes.This retrospective study included 222 patients with acute SAH (group S) and 306

2019 Journal of neurosurgical anesthesiology

20. Exercise and pharmacologic stress-induced interlead T-wave heterogeneity analysis to detect clinically significant coronary artery stenosis. Full Text available with Trip Pro

Exercise and pharmacologic stress-induced interlead T-wave heterogeneity analysis to detect clinically significant coronary artery stenosis. Despite widespread use of ETT and vasodilator-stress with myocardial perfusion imaging (MPI) for noninvasive detection of flow-limiting coronary artery disease, there is continued need to improve diagnostic accuracy. We examined whether measurement of interlead T-wave heterogeneity (TWH) during exercise tolerance testing (ETT) or pharmacologic stress (...) testing improves detection of stenoses in large epicardial coronary arteries.All 137 patients at our institution who underwent diagnostic coronary angiography within 0 to 5 days after ETT (N = 81) or dipyridamole IV infusion (N = 58) in 2016 were studied, including 2 patients with both tests. Cases (N = 93) had angiographically significant stenosis (≥50% of left main or ≥ 70% of an epicardial coronary artery ≥2 mm in diameter); controls (N = 44) did not. TWH, i.e., interlead splay of T waves

2019 International journal of cardiology

To help you find the content you need quickly, you can filter your results via the categories on the right-hand side >>>>