ED ACS Adult Guideline revision 2020: Difference between revisions

From Guide to YKHC Medical Practices

mNo edit summary
mNo edit summary
Line 1: Line 1:
Guideline: Diagnosis and Management of Acute Coronary Syndrome (Adult)<br>
;Guideline
:Diagnosis and Management of Acute Coronary Syndrome (Adult)


Revision Date: 2020
;Revision Date
: 2020


== Impetus for guideline revision ==
== Impetus for guideline revision ==
# Last update was 2011
* Last update was in 2011, and several interim events have occurred:
# Institutional change from conventional troponin assay to Gen5 high-sensitivity troponin assay
** The ''Third Universal Definition of Myocardial Infarction'' was published in 2012<ref name="Thygesen2012">Thygesen K, Alpert JS, Jaffe AS, et al. Third universal definition of myocardial infarction. J Am Coll Cardiol. 2012;60(16):1581-1598. doi:[https://doi.org/10.1016/j.jacc.2012.08.001 10.1016/j.jacc.2012.08.001]</ref>; this changed the EKG criteria for diagnosis of STEMI.
** The ''Fourth Universal Definition of Myocardial Infarction'' was published in 2018<ref name="Thygesen2018">Thygesen K, Alpert JS, Jaffe AS, et al. Fourth Universal Definition of Myocardial Infarction (2018). Journal of the American College of Cardiology. 2018;72(18):2231-2264. doi:[https://doi.org/10.1016/j.jacc.2018.08.1038 10.1016/j.jacc.2018.08.1038]</ref>; this introduced the terms "acute myocardial injury" and "chronic myocardial injury".
 
* Institutional change from conventional troponin assay to a 5th-generation high-sensitivity troponin-T assay
** On November 12, 2019, the Yukon-Kuskokwim Delta Regional Hospital (YKDHR) switched cardiac troponin assay to the Roche Diagnostics ''Elecsys® Troponin T Gen 5 STAT''. Details are available in the [http://yk-health.org/images/b/b9/Elecsys_Troponin_T_Gen_5_STAT%2C_-07398000160_2_en_cc4d61e9-73c6-e811-2d93-00215a9b3428.pdf manufacturer's package insert].
 


== Goals ==
== Goals ==
Line 13: Line 20:
# Clinicians with basic ED and/or Urgent Care skills who rarely diagnose and treat ACS should be able to use this guideline to correctly diagnose and manage most straightforward ACS cases (i.e. the majority of them) without external information sources.  Unfortunately, some cases are not straightforward and such cases are challenging for even the most experienced experts; this guideline will be insufficient for unusual cases and early expert consultation is encouraged.
# Clinicians with basic ED and/or Urgent Care skills who rarely diagnose and treat ACS should be able to use this guideline to correctly diagnose and manage most straightforward ACS cases (i.e. the majority of them) without external information sources.  Unfortunately, some cases are not straightforward and such cases are challenging for even the most experienced experts; this guideline will be insufficient for unusual cases and early expert consultation is encouraged.


== Issues intentionally NOT addressed in this guideline ==
# Diagnosis and management of “chest pain” unlikely to be acute cardiac ischemia.
# HS-troponin diagnostic algorithms other than the FDA-approved cutoffs.
# Use of the terminology “acute cardiac injury” and “chronic cardiac injury”.
# Diagnosis/Management of type-2 MI’s.


== Changes ==
== Changes ==
Line 23: Line 25:
* This is a ground-up rewrite without significant inheritance.
* This is a ground-up rewrite without significant inheritance.
* Utilization of high-sensitivity troponin-T test.
* Utilization of high-sensitivity troponin-T test.
* New STEMI diagnostic criteria from the ''Fourth Universal Definition of Myocardial Infarction'' (2018).<ref>Thygesen K, Alpert JS, Jaffe AS, et al. Fourth Universal Definition of Myocardial Infarction (2018). Journal of the American College of Cardiology. 2018;72(18):2231-2264. doi:[https://doi.org/10.1016/j.jacc.2018.08.1038 10.1016/j.jacc.2018.08.1038]</ref>
* New STEMI diagnostic criteria from the ''Third Universal Definition of Myocardial Infarction'' (2012).<ref name="Thygesen2012" />
* Use of the new term '''NSTEACS''' (Non-ST-Elevation Acute Coronary Syndrome). This term combines NSTEMI and unstable angina into a single entity because they are now managed the same.
 
=== Minor ===
=== Minor ===
* N/A
* N/A
== Issues intentionally NOT addressed in this guideline ==
# Diagnosis and management of “chest pain” which is not suggestive of acute myocardial ischemia.
# HS-troponin diagnostic algorithms other than the FDA-approved cutoffs.
# Use of the terminology “acute cardiac injury” and “chronic cardiac injury”. 
# Diagnosis/Management of type-2 MI’s.


== Target population ==
== Target population ==
Patients presenting with signs/symptoms suggestive of acute myocardial ischemia.  In this context, “suggestive” should be interpreted to mean that ACS is the most likely etiology; or, from a different perspective, the clinician feels that the probability of ACS is high enough that the condition is “ACS until proven otherwise.”  Such patients are only a subset of those who present complaining of “chest pain” and thus this guideline is not intended to inform the management of all patients complaining of chest pain.
Patients presenting with signs/symptoms suggestive of acute myocardial ischemia.  In this context, “suggestive” should be interpreted to mean that ACS is the most likely etiology; or, from a different perspective, the clinician feels that the probability of ACS is high enough that the condition is “ACS until proven otherwise.”  Such patients are only a subset of those who present complaining of “chest pain” and thus this guideline is not intended to inform the management of all patients complaining of chest pain.
== Future Directions ==
* Review/update this guideline every two years.  Given the importance of the topic and the vast amount of active research, frequent updates are indicated.
* Evidence-based troponin algorithm/cutoffs.
::- Based upon institutional data or published data?


== Authorship ==
== Authorship ==
Line 39: Line 58:
:   
:   
<br>
<br>


== References ==
== References ==

Revision as of 15:59, 25 January 2020

Guideline
Diagnosis and Management of Acute Coronary Syndrome (Adult)
Revision Date
2020

Impetus for guideline revision

  • Last update was in 2011, and several interim events have occurred:
    • The Third Universal Definition of Myocardial Infarction was published in 2012[1]; this changed the EKG criteria for diagnosis of STEMI.
    • The Fourth Universal Definition of Myocardial Infarction was published in 2018[2]; this introduced the terms "acute myocardial injury" and "chronic myocardial injury".
  • Institutional change from conventional troponin assay to a 5th-generation high-sensitivity troponin-T assay
    • On November 12, 2019, the Yukon-Kuskokwim Delta Regional Hospital (YKDHR) switched cardiac troponin assay to the Roche Diagnostics Elecsys® Troponin T Gen 5 STAT. Details are available in the manufacturer's package insert.


Goals

  1. The guideline should be quickly useful without having previously studied it.
  2. All necessary medications and doses should be included in the guideline.
  3. Major cautions and contraindications should be included in the guideline.
  4. Clinicians with basic ED and/or Urgent Care skills who rarely diagnose and treat ACS should be able to use this guideline to correctly diagnose and manage most straightforward ACS cases (i.e. the majority of them) without external information sources. Unfortunately, some cases are not straightforward and such cases are challenging for even the most experienced experts; this guideline will be insufficient for unusual cases and early expert consultation is encouraged.


Changes

Major

  • This is a ground-up rewrite without significant inheritance.
  • Utilization of high-sensitivity troponin-T test.
  • New STEMI diagnostic criteria from the Third Universal Definition of Myocardial Infarction (2012).[1]
  • Use of the new term NSTEACS (Non-ST-Elevation Acute Coronary Syndrome). This term combines NSTEMI and unstable angina into a single entity because they are now managed the same.

Minor

  • N/A


Issues intentionally NOT addressed in this guideline

  1. Diagnosis and management of “chest pain” which is not suggestive of acute myocardial ischemia.
  2. HS-troponin diagnostic algorithms other than the FDA-approved cutoffs.
  3. Use of the terminology “acute cardiac injury” and “chronic cardiac injury”.
  4. Diagnosis/Management of type-2 MI’s.


Target population

Patients presenting with signs/symptoms suggestive of acute myocardial ischemia. In this context, “suggestive” should be interpreted to mean that ACS is the most likely etiology; or, from a different perspective, the clinician feels that the probability of ACS is high enough that the condition is “ACS until proven otherwise.” Such patients are only a subset of those who present complaining of “chest pain” and thus this guideline is not intended to inform the management of all patients complaining of chest pain.


Future Directions

  • Review/update this guideline every two years. Given the importance of the topic and the vast amount of active research, frequent updates are indicated.
  • Evidence-based troponin algorithm/cutoffs.
- Based upon institutional data or published data?


Authorship

Lead Author[s]

Andrew W. Swartz, MD

Co-author[s]

Reviewer[s]



References

  1. 1.0 1.1 Thygesen K, Alpert JS, Jaffe AS, et al. Third universal definition of myocardial infarction. J Am Coll Cardiol. 2012;60(16):1581-1598. doi:10.1016/j.jacc.2012.08.001
  2. Thygesen K, Alpert JS, Jaffe AS, et al. Fourth Universal Definition of Myocardial Infarction (2018). Journal of the American College of Cardiology. 2018;72(18):2231-2264. doi:10.1016/j.jacc.2018.08.1038