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Related Concept Videos

Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation01:21

Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation

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Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...
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Peripheral Artery Disease I: Introduction01:30

Peripheral Artery Disease I: Introduction

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Peripheral artery disease (PAD) predominantly results from atherosclerosis, which involves the accumulation of fatty deposits, or plaques, within the walls of arteries. This causes them to narrow and harden, significantly reducing blood flow. PAD predominantly affects the legs, particularly the arteries supplying the thighs and calves. In rare cases, it may involve other arteries, including those in the arms.Etiology of PAD:The principal cause of PAD is atherosclerosis, which results from fatty...
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Assessment of the Cardiovascular System III: Palpation01:27

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Palpation involves feeling the body to evaluate texture, size, consistency, and tenderness for assessing cardiovascular health. The following steps are organized in a head-to-toe order:
Jugular Venous Pressure (JVP) Measurement
Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above...
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Arteries of Lower Limbs01:20

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The external iliac artery transitions out of the body cavity, entering the femoral region of the lower leg, and is renamed the femoral artery at the point where it traverses the body wall. This artery is responsible for the distribution of blood to the thigh's deep muscles and the skin's ventral and lateral regions, achieved through several minor branches and the lateral deep femoral artery, which also spawns a lateral circumflex artery. The knee area receives blood from the genicular...
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Peripheral Artery Disease IV: Nursing Management01:26

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 The nursing management of a patient with peripheral artery disease (PAD) begins with a thorough assessment of the patient’s health history and clinical manifestations.AssessmentHealth History: Evaluate the patient’s history of hypertension, hyperlipidemia, family history of cardiovascular issues, and lifestyle factors such as dietary patterns, smoking, and physical activity.Physical Examination:Assess the affected extremity for decreased or absent peripheral pulses,...
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Peripheral Artery Disease V: Postoperative Nursing Management01:23

Peripheral Artery Disease V: Postoperative Nursing Management

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During the postoperative period, it is crucial to focus on maintaining circulation, identifying and managing potential complications, and planning for discharge.Nursing AssessmentVital signs monitoring: Regularly monitor vital signs, including blood pressure, heart rate, respiratory rate, and temperature, to detect early signs of complications such as bleeding and infection.Circulation assessment: Monitor pulses, perform Doppler assessments, and check capillary refill, color, temperature, and...
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Murine Model of Hindlimb Ischemia
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Murine Model of Hindlimb Ischemia

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Acute Limb Ischemia.

Bhaskar Purushottam1, Karthik Gujja1, Adrian Zalewski1

  • 1Zena and Michael A. Weiner Cardiovascular Institute, Mount Sinai School of Medicine, One Gustave Levy L. Place, New York, NY 10029, USA.

Interventional Cardiology Clinics
|June 6, 2017
PubMed
Summary

Acute limb ischemia, a sudden loss of blood flow threatening limb viability, is often caused by acute thrombosis. Prompt revascularization is crucial for limb salvage when damage is not irreversible.

Keywords:
Acute limb ischemiaAspiration devicesCatheter directed thrombolysisPercutaneous mechanical thrombectomySevere limb ischemiaThromboembolectomy

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Area of Science:

  • Vascular Surgery
  • Emergency Medicine
  • Cardiovascular Research

Background:

  • Acute limb ischemia (ALI) is a critical vascular emergency characterized by a sudden reduction in blood flow to the extremities, typically lasting less than 14 days.
  • The primary causes of ALI include acute thrombosis or embolism in native arteries or bypass grafts, significantly endangering limb viability.
  • Understanding the etiopathogenesis and timely management of ALI is vital to prevent irreversible tissue damage and potential amputation.

Purpose of the Study:

  • To summarize the key aspects of acute limb ischemia, including its definition, common causes, and primary treatment strategies.
  • To emphasize the critical role of prompt revascularization in salvaging limbs affected by acute limb ischemia.
  • To outline the indications for amputation in cases of irreversible tissue and nerve damage.

Main Methods:

  • Review of existing literature and clinical guidelines on acute limb ischemia.
  • Analysis of the etiopathogenesis, focusing on acute thrombosis and embolism.
  • Discussion of management principles, highlighting revascularization techniques and amputation criteria.

Main Results:

  • Acute limb ischemia is defined by a sudden decrease in limb perfusion (<14 days) threatening limb viability.
  • Acute thrombosis of native arteries or grafts is the predominant cause of acute limb ischemia.
  • Successful revascularization is the cornerstone of treatment for ALI when tissue and nerve damage is not irreversible.

Conclusions:

  • Prompt revascularization is the definitive management for acute limb ischemia to preserve limb function and viability.
  • Amputation is reserved for cases where irreversible tissue and nerve damage has already occurred, precluding limb salvage.
  • Effective management of acute limb ischemia requires rapid diagnosis and intervention to improve patient outcomes.