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Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
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IntroductionThe management of Acute Coronary Syndrome (ACS) aims to minimize myocardial damage, preserve myocardial function, and prevent complications.Initial ManagementInpatient management involves continuous cardiac monitoring, preferably in an ICU, focusing on blood pressure, serum sodium, potassium, and creatinine levels, and urine output. Ongoing pharmacologic management is crucial for stabilizing the patient.Supplemental Oxygen: Administer supplemental oxygen if oxygen saturation is...
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Calcium ions are essential to contract smooth muscle cells in blood vessels. They enter these cells through voltage-dependent calcium channels, specifically L-type calcium channels in the cell membrane. These L-type calcium channels are integral to the excitation-contraction coupling process in smooth muscle. When a stimulus is received by smooth muscle cells, their membrane depolarizes. This alteration in membrane potential instigates the opening of L-type calcium channels. As a result,...
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Extracorporeal Membrane Oxygenation for Calcium Channel Blocker Intoxication: A Multicenter Retrospective Registry

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Extracorporeal membrane oxygenation (ECMO) is a vital rescue therapy for severe calcium channel blocker (CCB) toxicity. Pediatric patients show higher survival rates than adults, with younger age and absence of cardiac arrest improving outcomes.

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Area of Science:

  • Cardiology
  • Toxicology
  • Critical Care Medicine

Background:

  • Calcium channel blocker (CCB) toxicity can cause severe cardiogenic shock and circulatory collapse.
  • Extracorporeal membrane oxygenation (ECMO) is a potential salvage therapy for refractory CCB toxicity.
  • Limited data exists on ECMO outcomes, particularly comparing pediatric and adult populations.

Purpose of the Study:

  • To analyze survival outcomes in pediatric versus adult patients with CCB toxicity treated with ECMO.
  • To identify factors associated with survival in patients requiring ECMO for CCB toxicity.

Main Methods:

  • Retrospective analysis of the Extracorporeal Life Support Organization (ELSO) registry (2015-2023).
  • Inclusion criteria: patients aged >= 28 days with CCB toxicity requiring ECMO.
  • Primary outcome: survival to discharge. Univariate logistic regression used to identify survival-associated factors.

Main Results:

  • Overall survival was 80% in pediatric patients versus 63% in adults (p=0.0536).
  • Veno-arterial ECMO was the predominant configuration (90%).
  • Increased age, lower arterial pH, pre-ECMO cardiac arrest, and extracorporeal cardiopulmonary resuscitation (ECPR) were associated with lower survival odds.

Conclusions:

  • ECMO is an increasingly utilized rescue therapy for severe CCB toxicity.
  • Pediatric patients generally experience better outcomes compared to adults.
  • Younger age, preserved arterial pH, and absence of pre-ECMO cardiac arrest are favorable prognostic indicators.