Cardiac biomarkers in the intensive care unit

Area of Science:

• Biochemistry
• Cardiology
• Critical Care Medicine

Background:

• Cardiac biomarkers (CB) were initially developed for diagnosing acute myocardial infarction.
• Advancements in detection technology and understanding of cardiac disease have expanded CB applications.
• CB are increasingly utilized beyond primary cardiac events, including in intensive care settings.

Purpose of the Study:

• To discuss the properties and evolving applications of common cardiac biomarkers.
• To highlight the utility of CB in intensive care for various acute conditions.
• To explore future directions, including multimarker approaches and microRNAs.

Main Methods:

• Review of current literature on cardiac biomarker properties and applications.
• Discussion of diagnostic and prognostic roles of CB.
• Exploration of emerging uses in critical care scenarios.

Main Results:

• CB measurements are more sensitive and have applications in disease staging and prognostication.
• CB are valuable in intensive care for detecting non-cardiac acute processes like pulmonary embolism and sepsis.
• The article details uses in acute heart failure, renal failure, and acute lung injury.

Conclusions:

• Cardiac biomarkers have evolved significantly beyond initial diagnostic roles.
• Their expanded applications, particularly in intensive care, demonstrate broad clinical utility.
• Future research may focus on multimarker strategies and microRNAs for enhanced biomarker discovery.