Related Experiment Video

Updated: Sep 10, 2026

Predicting Amputation using Local Circulating Mononuclear Progenitor Cells in Angioplasty-treated Patients with Critical Limb Ischemia
07:25

Predicting Amputation using Local Circulating Mononuclear Progenitor Cells in Angioplasty-treated Patients with Critical Limb Ischemia

Published on: September 22, 2020

Noninvasive hemodynamic evaluation in selection of amputation level

B Y Lee, F S Trainor, D Kavner

    Surgery, Gynecology & Obstetrics
    |August 1, 1979
    PubMed

    Various noninvasive techniques of hemodynamic evaluation have been used to determine the optimal level of amputation. Noninvasively obtained measurements of pressure and blood flow in the lower extremity have been found to be reliable in predicting the probable healing of an amputation. In patients with severely calcified noncompressible arteries, noninvasive electromagnetic flowmeter measurements of peak pulsatile flow provide a more accurate indication of the vascular status of the patient than do blood pressure measurements which, in such patients, frequently exceed 300 millimeters of mercury. Skin thermistor thermometry does not appear to be applicable in patients with extensive severe ischemia of the leg. The need for a reliable method of determining the lowest possible level of amputation is well recognized. Such factors as wound edge bleeding and clinical judgment too often lead to above the knee amputation when, frequently, a more distal amputation could have been possible. Our experience has shown that noninvasive techniques for hemodynamic evaluation are a valuable aid to clinical judgment in determining accurately the lowest level for successful limb amputation.

    More Related Videos

    High-Resolution Three-Dimensional Imaging of the Footpad Vasculature in a Murine Hindlimb Gangrene Model08:16

    High-Resolution Three-Dimensional Imaging of the Footpad Vasculature in a Murine Hindlimb Gangrene Model

    Published on: March 16, 2022

    Near-Infrared Spectroscopy During Reactive Hyperemia for the Assessment of Lower Limb Vascular Function04:44

    Near-Infrared Spectroscopy During Reactive Hyperemia for the Assessment of Lower Limb Vascular Function

    Published on: March 22, 2024

    Related Concept Videos

    Assessing Blood pressure using a doppler ultrasound01:19

    Assessing Blood pressure using a doppler ultrasound

    To obtain accurate blood pressure measurements in clinical settings, especially when traditional methods are insufficient, healthcare professionals utilize the Doppler ultrasound technique. This method uses high-frequency sound waves to detect blood flow within the arteries, which is crucial for patients with conditions that complicate circulatory system assessment.
    Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
    Preparation of Equipment:
    Pre-Procedural Guidelines for Assessing Blood Pressure01:10

    Pre-Procedural Guidelines for Assessing Blood Pressure

    Accurate blood pressure assessment is crucial for diagnosing and managing various health conditions. To ensure the reliability of these measurements, healthcare professionals must adhere to standardized pre-procedural guidelines. These guidelines enhance patient safety and improve the overall quality of healthcare. The following steps are essential for obtaining accurate and consistent blood pressure readings, from using the appropriate tools to ensuring effective communication with the patient.
    Assessment of the Cardiovascular System III: Palpation01:27

    Assessment of the Cardiovascular System III: Palpation

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

    Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation

    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...