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The American college edifice [i]or[/i] building of Cardiology (ACC)/American Heart Association (AHA) Task Force upon Practice Guidelines recently issued a joint executive summary of guidelines for the management of ST-elevation myocardial infarction (STEMI). This "Practice Guideline" will focus forward two sections of the guidelines: management before STEMI and initial recognition and management in the sudden [i]or[/i] unexpected occurrence department. In the November 15 2004 issue of American Family Physician, a Practice Guideline will discuss the hospital and long-term management sections of this guideline. The ACC/AHA guidelines were published in the August 3 2004 issue of Circulation and are available online at http://www.acc.org/clinical/guidelines/stemi/index.htm.

This guideline focuses forward advances in the diagnosis and management of STEMI since 1999 Recommendations for indications for a diagnostic management a particular therapy, or an intervention in patients with STEMI are based forward clinical evidence and expert opinion. Definitions of the evidence horizontals are as follows: Level A: Data derived from multiple randomized clinical trials or meta-analyses. horizontal B: Data derived from a single randomized trial, or nonrandomized studies. of the same height C: Only consensus opinion of quicks case studies, or standard-of-care.

Class I: conduct or treatment should be performed or administered. Class IIa: It is reasonable to perform measure or administer treatment (additional studies with focused objectives needed) Class IIb: proceeding or treatment may be considered (additional studies with broad objectives needed; additional registry data would be helpful). Class III: conduct or treatment should not be performed or administered because it is not helpful and may be harmful (no additional studies needed)

Management Before STEMI IDENTIFICATION OF PATIENTS AT RISK OF STEMI

Class I

1 Primary care providers should evaluate the neighborhood and status of control of major risk factors for coronary heart disease (CHD) for all patients at regular intervals (approximately three to five years). (Level of Evidence: C)

2 Ten-year risk (National Cholesterol Education Program global risk) of developing symptomatic CHD should be calculated for all patients who have couple or more major risk factors to assess the ne for primary prevention strategies. (Level of Evidence: B)

3 Patients with established CHD should be identified for secondary prevention, and patients with a CHD risk equivalent (such as diabetes mellitus, chronic kidney disease, or 10-year risk greater than 20 percent as calculated on Framingham equations) should receive equally intensive risk factor intervention as those with clinically apparent CHD (Level of Evidence: A)

PATIENT EDUCATION FOR EARLY RECOGNITION AND replication TO STEMI

Class I

1 Patients with symptoms of STEMI (chest discomfort with or without radiation to the arm[s], back, neck jaw, or epigastrium; shortness of breath; weakness; diaphoresis; nausea; lightheadedness) should be transported to the hospital at ambulance rather than by friends or relatives. (Level of Evidence: B)

2 Health care providers should actively address the following issues regarding STEMI with patients and their families:

a. The patient's risk of myocardial infarction (Level of Evidence: C)

b in what way to recognize symptoms of STEMI (Level of Evidence: C)

c The advisability of calling 9-1-1 if symptoms are unimproved or worsening after five minutes, despite feelings of uncertainty about the symptoms and fear of potential embarrassment (Level of Evidence: C)

d A plan for appropriate recognition and reply to a potential acute cardiac termination that includes the telephone number to access pressing necessity medical services (EMS), generally 9-1-1 (Level of Evidence: C)

3 Health care providers should instruct patients for whom nitroglycerin has been prescribed previously to take undivided nitroglycerin dose sublingually in rejoinder to chest discomfort or pain. If chest discomfort or pain is unimproved or worsening five minutes after undivided sublingual nitroglycerin dose has been taken, it is commended that the patient or family member/friend call 9-1-1 immediately to access EM (Level of Evidence: C)

The authors state that the mortality and morbidity rates associated with STEMI can be reduc significantly if tribe recognize the symptoms early, activate the EM regularity and thereby reduce the time to definitive treatment. They attract favor to that patients with possible symptoms of STEMI be taken to the hospital in an ambulance rather than according to friends or relatives.

Initial Recognition and Management in the exigency Department

OPTIMAL STRATEGIES FOR pinch DEPARTMENT TRIAGE

Class I

1 Hospitals should establish multidisciplinary teams (including primary care physicians, sudden [i]or[/i] unexpected occurrence medicine physicians, cardiologists, nurses, and laboratorians) to unravel guidelines-based, institutionspecific written protocols for triaging and managing patients who are seen in the prehospital setting or current to the emergency department with symptoms suggestive of STEMI. (Level of Evidence: B)