Stephen W Smith

Summary

Affiliation: University of Minnesota
Country: USA

Publications

  1. ncbi request reprint T/QRS ratio best distinguishes ventricular aneurysm from anterior myocardial infarction
    Stephen W Smith
    Department of Emergency Medicine, Hennepin County Medical Center, University of Minnesota School of Medicine, Minneapolis 55415, USA
    Am J Emerg Med 23:279-87. 2005
  2. doi request reprint Central versus local adjudication of myocardial infarction in a cardiac biomarker trial
    Stephen W Smith
    Department of Emergency Medicine, University of Minnesota, Minneapolis, MN, USA
    Am Heart J 165:273-279.e1. 2013
  3. doi request reprint An impedance threshold device increases blood pressure in hypotensive patients
    Stephen W Smith
    Department of Emergency Medicine, Hennepin County Medical Center, Minneapolis, Minnesota 55415, USA
    J Emerg Med 41:549-58. 2011
  4. doi request reprint Electrocardiographic differentiation of early repolarization from subtle anterior ST-segment elevation myocardial infarction
    Stephen W Smith
    Hennepin County Medical Center, Minneapolis, MN, USA
    Ann Emerg Med 60:45-56.e2. 2012
  5. doi request reprint Diagnosis of ST-elevation myocardial infarction in the presence of left bundle branch block with the ST-elevation to S-wave ratio in a modified Sgarbossa rule
    Stephen W Smith
    Hennepin County Medical Center, Minneapolis, MN, USA
    Ann Emerg Med 60:766-76. 2012
  6. doi request reprint Acute myocardial infarction with left bundle-branch block: disproportional anterior ST elevation due to right ventricular myocardial infarction in the presence of left bundle-branch block
    Stephen W Smith
    Department of Emergency Medicine, Hennepin County Medical Center, Minneapolis, MN 55415, USA
    Am J Emerg Med 26:342-7. 2008
  7. ncbi request reprint ST segment elevation differs depending on the method of measurement
    Stephen W Smith
    Department of Emergency Medicine, Hennepin County Medical Center, Minneapolis, MN 55415, USA
    Acad Emerg Med 13:406-12. 2006
  8. ncbi request reprint Acute coronary syndromes
    Stephen W Smith
    Department of Emergency Medicine, Hennepin County Medical Center, 701 Park Avenue, Minneapolis, MN 55415, USA
    Emerg Med Clin North Am 24:53-89, vi. 2006
  9. doi request reprint Delta changes for optimizing clinical specificity and 60-day risk of adverse events in patients presenting with symptoms suggestive of acute coronary syndrome utilizing the ADVIA Centaur TnI-Ultra assay
    Fred S Apple
    Hennepin County Medical Center, University of Minnesota School of Medicine, Department of Laboratory Medicine and Pathology, Minneapolis, MN, USA
    Clin Biochem 45:711-3. 2012
  10. doi request reprint Role of monitoring changes in sensitive cardiac troponin I assay results for early diagnosis of myocardial infarction and prediction of risk of adverse events
    Fred S Apple
    Department of Laboratory Medicine and Pathology and Emergency Medicine, Hennepin County Medical Center and University of Minnesota, Minneapolis, MN 55415, USA
    Clin Chem 55:930-7. 2009

Detail Information

Publications35

  1. ncbi request reprint T/QRS ratio best distinguishes ventricular aneurysm from anterior myocardial infarction
    Stephen W Smith
    Department of Emergency Medicine, Hennepin County Medical Center, University of Minnesota School of Medicine, Minneapolis 55415, USA
    Am J Emerg Med 23:279-87. 2005
    ..Previous MI may present with persistent STE or "left ventricular aneurysm" (LVA) morphology that mimics AMI. Hypothesis A high ratio of T amplitude to QRS amplitude best distinguishes AMI from LVA...
  2. doi request reprint Central versus local adjudication of myocardial infarction in a cardiac biomarker trial
    Stephen W Smith
    Department of Emergency Medicine, University of Minnesota, Minneapolis, MN, USA
    Am Heart J 165:273-279.e1. 2013
    ..We determined the impact of local (at the site of subject enrollment) versus central adjudication of AMI on final diagnosis...
  3. doi request reprint An impedance threshold device increases blood pressure in hypotensive patients
    Stephen W Smith
    Department of Emergency Medicine, Hennepin County Medical Center, Minneapolis, Minnesota 55415, USA
    J Emerg Med 41:549-58. 2011
    ..The impedance threshold device (ITD-7) augments the vacuum created in the thorax with each inspiration, thereby enhancing blood flow from the extrathoracic venous systems into the heart...
  4. doi request reprint Electrocardiographic differentiation of early repolarization from subtle anterior ST-segment elevation myocardial infarction
    Stephen W Smith
    Hennepin County Medical Center, Minneapolis, MN, USA
    Ann Emerg Med 60:45-56.e2. 2012
    ..We seek to determine which ECG measurements best distinguish STEMI versus early repolarization...
  5. doi request reprint Diagnosis of ST-elevation myocardial infarction in the presence of left bundle branch block with the ST-elevation to S-wave ratio in a modified Sgarbossa rule
    Stephen W Smith
    Hennepin County Medical Center, Minneapolis, MN, USA
    Ann Emerg Med 60:766-76. 2012
    ....
  6. doi request reprint Acute myocardial infarction with left bundle-branch block: disproportional anterior ST elevation due to right ventricular myocardial infarction in the presence of left bundle-branch block
    Stephen W Smith
    Department of Emergency Medicine, Hennepin County Medical Center, Minneapolis, MN 55415, USA
    Am J Emerg Med 26:342-7. 2008
    ..The electrocardiogram manifests disproportional, discordant ST elevation in leads II, III, and aVF and in leads V(1) through V(4)...
  7. ncbi request reprint ST segment elevation differs depending on the method of measurement
    Stephen W Smith
    Department of Emergency Medicine, Hennepin County Medical Center, Minneapolis, MN 55415, USA
    Acad Emerg Med 13:406-12. 2006
    ....
  8. ncbi request reprint Acute coronary syndromes
    Stephen W Smith
    Department of Emergency Medicine, Hennepin County Medical Center, 701 Park Avenue, Minneapolis, MN 55415, USA
    Emerg Med Clin North Am 24:53-89, vi. 2006
    ..Despite technologic advances in many diagnostic fields, the 12-lead ECG remains the basis for early identification and management of an acute coronary syndrome. This article reviews the use of the ECG in acute coronary syndromes...
  9. doi request reprint Delta changes for optimizing clinical specificity and 60-day risk of adverse events in patients presenting with symptoms suggestive of acute coronary syndrome utilizing the ADVIA Centaur TnI-Ultra assay
    Fred S Apple
    Hennepin County Medical Center, University of Minnesota School of Medicine, Department of Laboratory Medicine and Pathology, Minneapolis, MN, USA
    Clin Biochem 45:711-3. 2012
    ....
  10. doi request reprint Role of monitoring changes in sensitive cardiac troponin I assay results for early diagnosis of myocardial infarction and prediction of risk of adverse events
    Fred S Apple
    Department of Laboratory Medicine and Pathology and Emergency Medicine, Hennepin County Medical Center and University of Minnesota, Minneapolis, MN 55415, USA
    Clin Chem 55:930-7. 2009
    ....
  11. doi request reprint Use of the Centaur TnI-Ultra assay for detection of myocardial infarction and adverse events in patients presenting with symptoms suggestive of acute coronary syndrome
    Fred S Apple
    Department of Laboratory Medicine, Hennepin County Medical Center, University of Minnesota School of Medicine, Minneapolis, MN 55415, USA
    Clin Chem 54:723-8. 2008
    ..We determined the diagnostic accuracy of the Advia Centaur TnI-Ultra assay for detecting myocardial infarction (MI) and assessing risk of adverse events in patients presenting with ischemic symptoms suggestive of acute coronary syndrome...
  12. doi request reprint Assessment of the multiple-biomarker approach for diagnosis of myocardial infarction in patients presenting with symptoms suggestive of acute coronary syndrome
    Fred S Apple
    Department of Laboratory Medicine, Hennepin County Medical Center, University of Minnesota School of Medicine, Minneapolis, MN, USA
    Clin Chem 55:93-100. 2009
    ..Cardiac troponin is the preferred biomarker for detecting acute myocardial injury and infarction (MI). We studied whether multiple biomarkers of numerous pathophysiological pathways would increase the diagnostic accuracy for detecting MI...
  13. doi request reprint Myeloperoxidase improves risk stratification in patients with ischemia and normal cardiac troponin I concentrations
    Fred S Apple
    Department of Laboratory Medicine and Pathology, Hennepin County Medical Center, University of Minnesota School of Medicine and Minneapolis Medical Research Foundation, Minneapolis, MN 55415, USA
    Clin Chem 57:603-8. 2011
    ....
  14. doi request reprint Use of the bioMérieux VIDAS troponin I ultra assay for the diagnosis of myocardial infarction and detection of adverse events in patients presenting with symptoms suggestive of acute coronary syndrome
    Fred S Apple
    Department of Laboratory Medicine and Pathology, Hennepin County Medical Center, University of Minnesota School of Medicine, Minneapolis, MN, USA
    Clin Chim Acta 390:72-5. 2008
    ..We demonstrate the performance of the bioMérieux VIDAS Troponin I Ultra assay for diagnostic accuracy for detection of myocardial infarction (MI) and risk stratification...
  15. doi request reprint Three deaths associated with use of Xyrem
    Deborah L Zvosec
    Department of Emergency Medicine, Hennepin County Medical Center, Minneapolis, MN 55415, USA
    Sleep Med 10:490-3. 2009
    ..We discuss these cases and factors which may have exerted contributory respiratory depressant effects, singly or in combination, including concurrent use of sedative hypnotics, obstructive sleep apnea, and obesity...
  16. ncbi request reprint Physostigmine for gamma-hydroxybutyrate coma: inefficacy, adverse events, and review
    Deborah L Zvosec
    Department of Emergency Medicine, Hennepin County Medical Center Minneapolis, Medical Research Foundation, Minneapolis, Minnesota 55415, USA
    Clin Toxicol (Phila) 45:261-5. 2007
    ....
  17. doi request reprint Case series of 226 γ-hydroxybutyrate-associated deaths: lethal toxicity and trauma
    Deborah L Zvosec
    Department of Emergency Medicine, Hennepin County Medical Center, Minneapolis, MN 55415, USA
    Am J Emerg Med 29:319-32. 2011
    ..Education is needed about the lethality of GHB and the necessity for prompt medical intervention...
  18. doi request reprint Successful management of excited delirium syndrome with prehospital ketamine: two case examples
    Jeffrey D Ho
    Department of Emergency Medicine, Hennepin County Medical Center, Minneapolis, Minnesota 55430, USA
    Prehosp Emerg Care 17:274-9. 2013
    ..This strategy bears further study and surveillance by the prehospital care community for evaluation of side effects and unintended complications...
  19. doi request reprint Relationship between blood alcohol concentration and observable symptoms of intoxication in patients presenting to an emergency department
    Kalen N Olson
    Department of Laboratory Medicine and Pathology, Hennepin County Medical Center, University of Minnesota School of Medicine, Minneapolis, MN 55415, USA
    Alcohol Alcohol 48:386-9. 2013
    ..This study compares clinical signs and symptoms with measured and estimated blood alcohol concentrations (BACs)...
  20. ncbi request reprint Outcome of low-risk patients discharged home after a normal cardiac troponin I
    Stephen W Smith
    Department of Emergency Medicine, Hennepin County Medical Center, Minneapolis, Minnesota 55415, USA
    J Emerg Med 26:401-6. 2004
    ..At our institution, low-risk patients with symptoms suggestive of ACS who are discharged home after a normal cTnI drawn 6-9 h after symptom onset have a very low incidence of cardiac events at 30 days...
  21. doi request reprint Wide complex tachycardia in a pediatric diphenhydramine overdose treated with sodium bicarbonate
    Jon B Cole
    Hennepin Regional Poison Center, Hennepin County Medical Center, Minneapolis, MN 55415, USA
    Pediatr Emerg Care 27:1175-7. 2011
    ..We report a diphenhydramine overdose in a toddler with multiple markers of sodium channel blockade effectively treated with sodium bicarbonate...
  22. ncbi request reprint Upwardly concave ST segment morphology is common in acute left anterior descending coronary occlusion
    Stephen W Smith
    Department of Emergency Medicine, Hennepin County Medical Center and University of Minnesota School of Medicine, Minneapolis, Minnesota, USA
    J Emerg Med 31:69-77. 2006
    ..Many patients with LAD occlusion have borderline ST elevation with subtle morphology. Concave morphology is associated with a shorter duration of symptoms...
  23. doi request reprint Integration of pre-hospital electrocardiograms and ST-elevation myocardial infarction receiving center (SRC) networks: impact on Door-to-Balloon times across 10 independent regions
    Ivan C Rokos
    Geffen School of Medicine at UCLA, UCLA Olive View Medical Center, Department of Emergency Medicine, Sylmar, California 91342 1495, USA
    JACC Cardiovasc Interv 2:339-46. 2009
    ..The aim of this study was to evaluate the rate of timely reperfusion for ST-elevation myocardial infarction (STEMI) with primary percutaneous coronary intervention (PPCI) in regional STEMI Receiving Center (SRC) networks...
  24. ncbi request reprint Sumatriptan for the treatment of undifferentiated primary headaches in the ED
    James R Miner
    Department of Emergency Medicine, Hennepin County Medical Center, Minneapolis, MN 55415, USA
    Am J Emerg Med 25:60-4. 2007
    ..We hypothesize that there is no difference in the effectiveness of pain relief or frequency and severity of adverse effects between patients with migraine, probable migraine, or tension-type headaches when treated with sumatriptan...
  25. ncbi request reprint Supply/demand type 2 myocardial infarction: should we be paying more attention?
    Yader Sandoval
    Division of Cardiology, Department of Medicine, Hennepin County Medical Center, Minneapolis, Minnesota Electronic address
    J Am Coll Cardiol 63:2079-87. 2014
    ..Understanding these basic concepts will facilitate the diagnosis and treatment of these patients as well as ongoing research efforts...
  26. doi request reprint Emergency department skull trephination for epidural hematoma in patients who are awake but deteriorate rapidly
    Stephen W Smith
    Department of Emergency Medicine, Hennepin County Medical Center, Minneapolis, Minnesota, USA
    J Emerg Med 39:377-83. 2010
    ..We therefore have continued to teach skull trephination to emergency physicians (EPs). We are unaware of any literature on EP trephination for EDH in the age of computed tomography (CT) scanning...
  27. ncbi request reprint Agitation is common in gamma-hydroxybutyrate toxicity
    Deborah L Zvosec
    Department of Emergency Medicine, Hennepin County Medical Center, Minneapolis Medical Research Foundation, MN 55404, USA
    Am J Emerg Med 23:316-20. 2005
    ..Clinicians should broaden their definitions of GHB toxicity to include nonsedative effects such as agitation, combativeness, and bizarre or self-injurious behavior...
  28. ncbi request reprint Beyond left bundle-branch block: looking for the acute transmural myocardial infarction
    Stephen W Smith
    Ann Emerg Med 39:95-7. 2002
  29. ncbi request reprint Ultrasound probe with integrated ECG lead: feasibility study
    Archana Ramireddy
    Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA
    Ultrason Imaging 29:195-8. 2007
    ..Since the ECG leads were not placed on their standard locations, a precordial ECG was recorded...
  30. ncbi request reprint Reply to "Insufficient evidence that agitation is common in gamma-hydroxybutyrate (GHB) toxicity," submitted in response to our original article entitled, "Agitation is common in gamma-hydroxybutyrate toxicity," published in AJEM, May
    Deborah L Zvosec
    Am J Emerg Med 24:388-9. 2006
  31. doi request reprint Comment on "A Bayesian sensitivity analysis of out-of-hospital 12-lead electrocardiograms: implications for regionalization of cardiac care"
    Stephen W Smith
    Acad Emerg Med 15:488; author reply 488-9. 2008
  32. ncbi request reprint Bidirectional ventricular tachycardia resulting from herbal aconite poisoning
    Stephen W Smith
    Ann Emerg Med 45:100-1. 2005
  33. ncbi request reprint Two dimensional arrays for real time 3D intravascular ultrasound
    Edward D Light
    Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA
    Ultrason Imaging 26:115-28. 2004
    ..The second method is based upon a laser dicing technique that cuts the individual elements in a random pattern. This resulted in 61 signal channels. Real time 3D images of the AIUM test object were made with this transducer...
  34. ncbi request reprint Thrombolytics are not contraindicated in the very old
    Stephen W Smith
    Arch Intern Med 162:2139-40; author reply 2140. 2002
  35. ncbi request reprint Intracardiac catheter 2-D arrays on a silicon substrate
    Warren Lee
    Department of Biomedical Engineering, Duke University, Durham, NC 27708 0281, USA
    IEEE Trans Ultrason Ferroelectr Freq Control 49:415-25. 2002
    ..The cardiac structures imaged include ventricular chambers, interventricular septum, mitral and tricuspid valves and real-time 3-D rendered volumes of the tricuspid valve in the open and closed position...