EMS 12-Lead

JUNE 20, 2022

One cannot rely on this feature as a means of detecting changes – subtle, or dramatic – for volatile occlusive coronary thrombus. Discussion When the QRS is normal, is the encountered ST/T changes that beget suspicion for LAD ACS (as in both of these cases) the result of occlusive coronary thrombus, or simply a normal variant?

ACS 130

ACS Coronary STEMI CAD 130

ACEP Now

JULY 7, 2023

Extracorporeal membrane oxygenation Of patients with out-of-hospital cardiac arrest presenting to the ED in refractory VF, a majority have significant coronary artery disease, much of which is amenable to percutaneous coronary intervention. References Tsao CW, et al. Benjamin EJ, et al. Kimblad H, et al.

Defibrillator 98

Defibrillator OR ALS Epinephrine 98

EMS 12-Lead

AUGUST 22, 2022

The coronary angiogram revealed no critical stenosis, or acute plaque ulceration. Takotsubo should be a diagnosis of exclusion after angiography reveals no obstructive coronary disease, and repeat Echo displays left ventricular recovery. Furthermore, pertinent electrolyte values (e.g. potassium) were within normal parameter.

E-9-1-1 130

E-9-1-1 Coronary ALS ICU 130

EMS 12-Lead

APRIL 14, 2022

It should be emphasized here that this is a presentation of high-pretest probability for Acute Coronary Syndrome (ACS). link] [1] Zachary et al. Utility of the history and physical examination in the detection of Acute Coronary Syndromes in emergency department patients. Western Journal of Emergency Medicine, 18 (4), 752-760. [2]

ACS 130

ACS Paramedic Coronary ALS 130

REBEL EM

JANUARY 29, 2024

Click here for Direct Download of the Podcast Paper: Aykan AC et al. References: Jaff MR et al. PMID: 21422387 Wan S et al. PMID: 15262836 Sharifi M et al. PMID: 27422214 Wang C et al. PMID: 19741062 Kucher N et al. PMID: 24226805 Piazza G et al. PMID: 26315743 Tapson VF et al. CHEST 2010.

ALS 136

ALS ACS OR CPR 136

Dr. Smith's ECG Blog

DECEMBER 27, 2023

Note that as many as 7% of patients with acute coronary syndrome have chest pain reproducible on palpation [Lee, Solomon]. which reduces the pre-test probability of acute coronary syndrome by less than 30% [McGee]. The original term " benign early repolarization" has fallen out of favor since the seminal paper by Haïssaguerre et al.

E-9-1-1 125

E-9-1-1 OR Coronary ACS 125

EMS 12-Lead

APRIL 28, 2022

In most cases, rather, the culprit is gross ischemia due to myocardial infarction, cardiomyopathy, or advanced coronary artery disease. Unfortunately, today’s case is lacking any such diagnostics, thus I cannot say with certainty that the QT interval is, or is not, culpable in arrhythmogenesis. [1] Wolters-Kluwer: Philadelphia, PA. [2]

E-9-1-1 130

E-9-1-1 ALS Coronary EMS 130

EMS 12-Lead

APRIL 2, 2022

He reported a history of ischemic cardiomyopathy with coronary stent placement approximately 10 years prior, but could not recall the specific artery involved. 4] Baranchuk, A, et al. BP 110/67 HR 68 RR 14 (non-labored) SpO2 95 RA Physical exam revealed slight pallor and diaphoresis. Attached is the first ECG. 2] Surawicz, B.

ALS 130

ALS STEMI Coronary OR 130

Dr. Smith's ECG Blog

JUNE 14, 2024

He underwent coronary angiography which showed severe multivessel disease, and he agreed to proceed with workup for CABG. The January 30, 2018 post — for PTA. Additional review of ECG artifacts by Pérez-Riera et al ( Ann Noninvasic Electrocardiol 23:e12494, 2018 ) VT Artifact — by Knight et al: NEJM 341:1270-1274, 1999.

Defibrillator 81

Defibrillator ALS Coronary OR 81

EMS 12-Lead

MAY 8, 2022

Cardiology was consulted, who advised to surveil a metabolic process as this did not strike them as acute coronary syndrome. No calcium was administered during pre-hospital transport. The following ECG was captured upon arrival at the receiving ED. The serum K returned 8.7, along with a pH 6.94, and an HCO3 of 5. 2] Birnbaum, Y., Physiology.

STEMI 130

STEMI ED EMS Firefighter 130

Dr. Smith's ECG Blog

JANUARY 6, 2024

Therefore the impulse must have originated somewhere lower in the atria, perhaps near the coronary sinus. In the 500+ Comments I have written on Dr. Smith's ECG Blog since becoming an Associate Editor in 2018 — I do not believe we have had a case of RA-LL lead reversal. For review — GO TO: The June 4, 2018 post ( LA-LL reversal ).

ALS 98

ALS STEMI Coronary OR 98

EMDocs

SEPTEMBER 26, 2024

Autopsy shows coronary atherosclerosis and marked cardiomegaly with a thickened left ventricular wall. Baccei SJ et al. J Am Coll Rad 15:4;639-647, April 1, 2018. Tyler W et al. An unknown EP reviews the report, determines that there is no reason to notify the patient, and documents nothing. Volume 80, no.

Emergency Department 74

Emergency Department ED ALS Coronary 74

Dr. Smith's ECG Blog

OCTOBER 24, 2019

The biphasic T wave is consistent with recent reperfusion of an occluded coronary artery supplying the inferior region. Here’s the angiogram of the RCA : No thrombus or plaque rupture in the RCA (or any coronary artery) was found. This MI wasn’t caused by a ruptured plaque of CAD - it was a coronary artery dissection of the RCA.

Coronary 52

Coronary CAD ACS STEMI 52

REBEL EM

MARCH 2, 2023

Background: Historically, we have treated acute coronary syndrome with supplemental oxygen regardless of the patient ’ s oxygen saturation. More recent evidence, however, demonstrates that too much oxygen could be harmful ( AVOID Trial ) by causing coronary vasoconstriction and increasing oxidative stress. Eur Heart J 2018.

ACS 52

ACS Coronary STEMI Ambulance 52

Dr. Smith's ECG Blog

JULY 31, 2020

Their OMI Manifesto details how use of standard STEMI criteria results in an unacceptable level of inaccuracy, in which an estimated 25-30% of acute coronary occlusions are missed! The article by Aslanger, Smith et al that is featured above in today’s post has just been published. P.S.: Our September 3, 2020 post features Dr.

STEMI 52

STEMI Coronary EMR ALS 52

Dr. Smith's ECG Blog

NOVEMBER 4, 2022

Hgb 11g/dL (110g/L) and leukocytosis, and a mildly elevated troponin (36 ng/L, with normal 1mm STE in aVR due to ACS will require coronary artery bypass surgery for revascularization, the infarct artery is often not the LM, but rather the LAD or severe 3-vessel disease. Harhash AA, Huang JJ, Reddy S, et al. Knotts et al.

Coronary 52

Coronary ACS STEMI ALS 52

EMDocs

JULY 1, 2023

Upon further research in the 1970’s, retrospective data from autopsies of those patients showed coronary aneurysms 5 Pathophysiology: Kawasaki Disease is a vasculitis of medium sized arteries. Tomisaku Kawasaki, who noticed 50+ similar pediatric presentations between the years 1961 and 1967. Lakhani, N. BMC Pediatrics. 2018;18(334).

EMS 66

EMS Coronary ED OR 66

Dr. Smith's ECG Blog

NOVEMBER 5, 2023

By Magnus Nossen, edits by Grauer and Smith The patient is a 70-something female with DMII, HTN and an extensive prior history of coronary artery disease and myocardial infarctions. As I illustrated in detail in My Comment of the October 3, 2018 post of Dr. Smith's ECG Blog — I favor a qualitative approach based on shape.

Coronary 108

Coronary OR ALS 108

ECG & Echo Learning

OCTOBER 2, 2022

Below follows a drug manual for use in the CCU (coronary care unit), ICU (intensive care unit) or ER (emergency room). μg/kg/min + + + ++ Low dose dopamine stimulates D1 receptors and induces vasodilation in coronary, renal, cerebral and mesenteric vessels. Increases coronary blood flow. Coronary flow enhanced.

E-9-1-1 52

E-9-1-1 ALS Coronary Epinephrine 52

Dr. Smith's ECG Blog

MAY 13, 2020

Smith presented results from a 2019 article by Harhash et al, that confirm how the ECG pattern shown in Figure-1 does not represent acute LMain occlusion — but rather the differential diagnosis that I show above. Today’s Post by Dr. Smith adds to our knowledge of this syndrome.

Coronary 52

Coronary ACS EMS STEMI 52

EMDocs

FEBRUARY 7, 2024

GLP-1 agonists are also associated with improved ejection fraction, coronary blood flow, and cardiac output while reducing the risk of cardiovascular events, infarction size, and all-cause mortality. Shetty R, Basheer FT, Poojari PG, et al. Wilding JPH, Batterham RL, Calanna S, et al; STEP 1 Study Group. 2022 Dec 7;13:1043789.

Allergic Reaction 75

Allergic Reaction ALS CAD OR 75

Dr. Smith's ECG Blog

SEPTEMBER 7, 2024

Lemkes et al. Eur Heart J 2018. A comparison of electrocardiographic changes during reperfusion of acute myocardial infarction by thrombolysis or percutaneous transluminal coronary angioplasty. The Proximal LAD thrombus lysed or partially lysed, restoring flow. Full text link. Wehrens XH, Doevendans PA, Ophuis TJ, Wellens HJ.

STEMI 118

STEMI ACS Critical Care OR 118

Dr. Smith's ECG Blog

OCTOBER 3, 2018

When he showed it to me, I said "Ouch, looks like an acute coronary occlusion. no LBBB or paced rhythm), acute coronary occlusion MI (OMI) is diagnosed in approximately 75% of cases. Khan AR, Golwala H, Tripathi A, et al. Here is our abstract from SAEM 2018. What happened?" In normal conduction , (i.e., Dodd1 , Deborah L.

Coronary 52

Coronary STEMI Paramedic ALS 52

Dr. Smith's ECG Blog

JULY 11, 2018

This is of course diagnostic of an acute coronary occlusion MI (OMI) that also meets STEMI criteria. The condition of the coronary artery at the time of angiogram may be different than it was 30 minutes prior during recording of the ECG. A 40-something woman had sudden chest pain. She called 911.

Coronary 52

Coronary STEMI ED ALS 52

FOAMfrat

JUNE 25, 2024

Other risk factors include heavy physical exertion, alcohol consumption, dehydration, and existing co-morbidities that may affect acclimatization such as coronary artery disease, COPD, hypertension, obesity, and sickle cell trait/anemia. 2. Jensen JD, Vincent AL. 2018 Jul 25;19(1):59. 2018 Jul 25;19(1):59.

OR 97

OR Coronary ALS 97

Dr. Smith's ECG Blog

OCTOBER 28, 2022

Learn about the Smith-Modified Sgarbossa Criteria for Diagnosis of OMI Paced Rhythm: Dodd, Meyers, Smith, et al. Electrocardiographic diagnosis of acute coronary Occlusion Myocardial Infarction in ventricular paced rhythm using the modified Sgarbossa criteria. Annals of Emergency Medicine 2021. Figure-1: The 2nd ECG in today's case. (

Coronary 52

Coronary Paramedic EMS ICU 52

Dr. Smith's ECG Blog

FEBRUARY 13, 2023

Meyers et al. Accuracy of OMI findings versus STEMI criteria for diagnosis of acute coronary occlusion myocardial infarction. Aslanger et al. DIagnostic accuracy oF electrocardiogram for acute coronary OCClusion resulTing in myocardial infarction (DIFOCCULT study). Lemkes et al. Eur Heart J 2018 4.

STEMI 52

STEMI Paramedic Coronary ALS 52

Dr. Smith's ECG Blog

MAY 8, 2023

The ACC likely made this new recommendation for the MSC in ventricular paced rhythm in large part due to the "PERFECT" Study (Meyers is an author, and Smith was the senior author): Dodd et al. Electrocardiographic Diagnosis of Acute Coronary Occlusion Myocardial Infarction in Ventricular Paced Rhythm Using the Modified Sgarbossa Criteria.

STEMI 52

STEMI Coronary ED ACS 52

Dr. Smith's ECG Blog

FEBRUARY 15, 2018

This ECG is diagnostic of an acute coronary occlusion of an artery supplying the inferior and posterior walls. Even at ~4 hours into her acute coronary occlusion there is barely any ST Elevation. 2) Contemporary troponins only start to rise 4-6 hours after the onset of acute coronary occlusion.

Coronary 52

Coronary Critical Care STEMI ED 52

ACEP Now

MARCH 14, 2024

Tintinalli JE, Stapczynski J, Ma O, et al. 2018 Nov;20(11):1-20. Acute myocardial infarction with normal and near normal coronary arteries. Documentation with coronary arteriography within 12 1/2 hours of the onset of symptoms in two cases (three episodes). Arnoldo BD, Purdue GF, Kowalske K, et al. 2023 Jul 17.

Operating Room 52

Operating Room ACS Critical Care Coronary 52

REBEL EM

FEBRUARY 22, 2023

et al, Emergency Medicine Clinical Essentials ed 2. Eye Emergencies, in Tintinalli J et al (eds): Tintinalli’s Emergency Medicine: A Comprehensive Study Guide, Seventh Edition New York City: McGraw-Hill 2016 (Ch) 241 Guluma K, Lee JE. Ophthalmology, in Marx J et al (eds): Rosens Emergency Medicine: Concepts and Practice, ed 9.

Emergency Department 52

Emergency Department ALS ED Coronary 52

Dr. Smith's ECG Blog

JULY 22, 2023

The patient proceeded to cath where all coronaries were described as normal with no evidence of any CAD, spasm, or any other abnormality. In the largest study looking at this topic by Mizusawa et al., Recently the rate of true arrhythmic events related to fevers in the classic Brugada Type 1 syndrome was explored by Michowitz et al.

E-9-1-1 74

E-9-1-1 CAD OR STEMI 74

Dr. Smith's ECG Blog

JUNE 28, 2018

Characteristic electrocardiographic pattern indicating a critical stenosis high in left anterior descending coronary artery in patients admitted because of impending myocardial infarction. de Zwaan C et al. Am Heart J. 1982 Apr;103(4 Pt 2):730-6. Am Ht J 117(3): 657-665; March 1989. Wehrens XH, Doevendans PA, Ophuis TJ, Wellens HJ.

STEMI 52

STEMI Coronary OR ALS 52

Dr. Smith's ECG Blog

OCTOBER 24, 2018

The patient would not have been diagnosed with acute coronary syndrome and would not have had an angiogram, would have been discharged (or perhaps had a stress test, which would be negative), and would be at great risk of another event, possibly resulting in death or heart failure. Thelin et al. Mokhtari et al.

E-9-1-1 40

E-9-1-1 STEMI ACS Coronary 40

Dr. Smith's ECG Blog

OCTOBER 6, 2018

The patient was in his 50s with history of hypertension, diabetes, seizure disorder, and smoking, but no known coronary artery disease. No patient should have to be "lucky" by having a positive troponin to be taken seriously as a possible acute coronary occlusion. See the proof for yourself in the literature below: Schmitt et al.

STEMI 40

STEMI Coronary ALS OR 40

Dr. Smith's ECG Blog

FEBRUARY 28, 2020

Kosuge et al. Witting et al. This does not contradict the conclusions of Kosuge et al. , Finally, Stein et al. This is a paper worth reading : Marchik et al. looked at consecutive patients with PE, ACS, or neither. They found that only 11% of PE had 1 mm T-wave inversions in both lead III and lead V1, vs. 4.6%

E-9-1-1 52

E-9-1-1 ACS ALS OR 52

Dr. Smith's ECG Blog

MARCH 6, 2019

Patel et al., Krucoff et al.) Patel et al. Krucoff et al. The Portable Programmable Microprocessor-Driven Real-Time 12-Lead Electrocardiographic Monitor: A Preliminary Report of a New Device for the Noninvasive Detection of Successful Reperfusion or Silent Coronary Reocclusion. Schomig et al. Heart 1996.

STEMI 52

STEMI ALS ACS OR 52