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IntroductionAortic regurgitation is characterized by the backward flow of blood from the aorta into the left ventricle during diastole and arises from the improper closure of the aortic valve. This condition results in left ventricular volume overload and can stem from both acute and chronic etiologies, each contributing uniquely to the disease's progression and symptomatology.Acute and Chronic CausesAcute aortic regurgitation often results from events that suddenly impair the integrity of the...
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Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...
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An aortic aneurysm is a localized outpouching or dilation at a weak point in the artery wall. It may involve different parts of the aorta, such as the abdominal aorta, aortic arch, or thoracic aorta.Etiological factorsSeveral disorders are associated with aortic aneurysms.Congenital causes, such as primary connective tissue disorders like Marfan syndrome, impact the integrity and strength of connective tissues, notably affecting the aorta. Marfan syndrome is a genetic disorder that specifically...
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Aortic valve regurgitation (AR) occurs when the aortic valve fails to close properly, allowing blood to flow backward from the aorta into the left ventricle. This backflow can result in two distinct clinical presentations: acute and chronic AR, each characterized by its own set of symptoms and physical findings.Acute Aortic RegurgitationAcute AR presents with a sudden onset of severe symptoms. Patients typically experience profound dyspnea (shortness of breath), chest pain, and signs of left...
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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...
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Aneurysm management involves either conservative medical therapy or surgical intervention, depending on the size and symptoms of the aneurysm. Conservative management is generally reserved for smaller, asymptomatic aneurysms, while larger or symptomatic aneurysms often necessitate surgical repair.Conservative Medical TherapyFor small, asymptomatic aneurysms, particularly abdominal aortic aneurysms (AAA) less than 5.5 centimeters in diameter, conservative medical therapy is recommended. This...
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Primary Infected Aortic Aneurysm: Clinical Presentation, Pathogen, and Outcome.

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Surgical intervention is crucial for infected aortic aneurysms. Open repair with in-situ graft replacement, following prolonged antibiotics, offers the most effective treatment strategy, significantly reducing mortality compared to medical management.

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Area of Science:

  • Vascular Surgery
  • Infectious Diseases
  • Aortic Aneurysm Management

Background:

  • Infected aortic aneurysms are rare but life-threatening conditions.
  • Optimal treatment strategies for infected aortic aneurysms remain a subject of debate within the medical community.
  • This study reviews treatment experience in 109 patients with infected aortic aneurysms.

Purpose of the Study:

  • To evaluate treatment outcomes for infected aortic aneurysms.
  • To identify the most effective surgical and medical management strategies.
  • To analyze pathogen prevalence and risk factors for mortality.

Main Methods:

  • Retrospective review of consecutive patients treated for primary infected aortic aneurysm from 1995 to 2011.
  • Definition of aneurysm-related mortality including in-hospital and late mortality.
  • Analysis of pathogens, treatment modalities (open repair, endovascular repair, medical management), and risk factors.

Main Results:

  • Non-typhoid Salmonella was the most common pathogen (60%), followed by Staphylococcus aureus (16%).
  • Surgical treatment was performed in 78% of patients, primarily open repair with in-situ graft replacement (71%).
  • Aneurysm-related mortality was significantly lower in surgically treated patients (21%) compared to medically treated patients (67%).

Conclusions:

  • Non-typhoid Salmonella is the predominant pathogen in infected aortic aneurysms.
  • Prolonged preoperative antibiotic treatment followed by open in-situ graft replacement is the preferred and most effective treatment.
  • Risk factors for mortality include advanced age, comorbidities, and less aggressive treatment approaches.