心筋梗塞に関連した心臓ショックにおける発熱
Matthew Pierce1, Abduljabar Adi2, Rohit Jain3
1Northwell Health, New Hyde Park, New York, USA; North Shore University Hospital, Manhasset, New York, USA.
JACC. Advances
|August 28, 2025
まとめ
発熱は急性心筋梗塞に関連した心臓発作性ショック (AMI- CS) で一般的であり,より重度の疾患を示唆する. しかし,ほとんどの発熱症例は非感染性であり,これらの患者では抗生物質の使用を最適化する必要があることを示唆しています.
科学分野:
- 心臓病科
- クリティカル ケア 医療
- 感染症
背景:
- 発熱が急性心筋梗塞に関連した心血管性ショック (AMI- CS) に起す役割は,現在の医療実践では十分に理解されていません.
- AMI-CSにおける発熱パターンの理解は,患者の管理を最適化するために極めて重要です.
研究 の 目的:
- AMI-CSを患っている患者の発熱を調査する.
- AMI-CS患者の臨床結果と治療戦略に対する熱の影響を分析する.
主な方法:
- AMI-CSと診断されたノースウェル・ショックの登録中の1372人の患者の遡及的分析.
- 熱は38.0°C以上の2つの温度または38.3°C以上の1つの温度で定義される.
- 発熱と発熱でないAMI-CS患者の特徴,治療方法,結果の比較
主要な成果:
- 発熱はAMI-CS患者の40%で観察され,通常は投与後2日後に発症した.
- 発熱患者は若く,男性より多く,ショックの重度が高く,抗生物質を含む侵襲的な治療を受けた (84%対42%).
- 抗生物質の使用が増加したにも関わらず,発熱患者のうち陽性な微生物培養は21%しかありませんでした. 病院での死亡率は同様でしたが,発熱した患者はより長く入院し,熟練した介護施設により頻繁に退院しました.
結論:
- 発熱はAMI-CSで頻繁に発生し,疾患の重度の増加と相関しています.
- AMI-CSで発症した熱病のほとんどは,感染性ではないようです.
- 抗生物質の管理を洗練し,発熱性AMI-CS患者の治療を改善するために,さらなる研究が必要である.
関連する概念動画
Myocarditis I: Introduction
28
Myocarditis is inflammation of the myocardium, which is the muscular layer of the heart.EtiologyMyocarditis has a diverse etiology, including a wide range of infectious and non-infectious causes:Infectious CausesViral: Common viruses include Coxsackie A and B, adenovirus, parvovirus B19, enteroviruses, and influenza A.Bacterial: Examples include infections caused by Streptococcus, Staphylococcus, and Mycoplasma species.Rickettsial: Infections like Rocky Mountain spotted fever can result in...
28
Myocarditis II: Clinical Features and Diagnostic Tests
20
Myocarditis is an inflammation of the heart muscle. The symptoms vary widely, encompassing asymptomatic presentations to severe, acute manifestations.Clinical PresentationAsymptomatic cases: In some instances, myocarditis may be asymptomatic, with the infection resolving without intervention. These cases often go undetected unless discovered incidentally through diagnostic imaging or tests conducted for other reasons.General Early Symptoms: Early symptoms of myocarditis are non-specific and can...
20
Myocarditis III: Medical Management
15
Myocarditis: Comprehensive Medical ManagementMyocarditis, the heart muscle inflammation, requires a comprehensive medical management strategy that addresses the underlying cause, provides supportive care, manages symptoms, and reduces cardiac workload.Infections and Autoimmune CausesAdminister appropriate antimicrobial therapy when an infectious agent causes myocarditis. For instance, penicillin treats infections caused by Group A Streptococcus. In cases where autoimmune processes are...
15
Myocarditis IV: Nursing Management
26
Myocarditis is an inflammatory condition of the myocardium requiring meticulous nursing management for optimal patient outcomes. Effective management begins with a thorough assessment of the patient's medical history, paying close attention to past infections, autoimmune disorders, travel history, and exposure to toxins or drugs. Recent viral infections and systemic diseases are particularly relevant due to their potential role in triggering myocarditis.Physical Examination and MonitoringThe...
26
Introduction Cardiac Emergencies
46
Cardiac emergencies are critical situations involving the heart that require immediate medical intervention to prevent severe complications or death. These emergencies often arise from underlying heart conditions that impair the heart's ability to function correctly.Types of Cardiac EmergenciesThe most common types of cardiac emergencies include Acute Coronary Syndrome (ACS), myocardial infarction (MI), cardiac arrest, and heart failure.Acute Coronary Syndrome (ACS)Acute Coronary Syndrome (ACS)...
46
Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations
45
The pathophysiology of Acute Coronary Syndrome [ACD] involves several key processes:The main underlying cause of ACD is atherosclerosis, a chronic inflammatory disease characterized by the buildup of lipid-laden plaques within the coronary arteries.As the atherosclerotic plaque grows in the coronary artery, it may become unstable due to the formation of a lipid-rich core and a thin fibrous cap. Inflammatory cells within the plaque, such as macrophages, secrete enzymes that degrade the...
45


