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Related Concept Videos

The Availability Heuristic01:08

The Availability Heuristic

A heuristic is a general problem-solving framework (Tversky & Kahneman, 1974). You can think of these as mental shortcuts that are used to solve problems. Different types of heuristics are used in different types of situations, and the impulse to use a heuristic occurs when one of five conditions is met (Pratkanis, 1989):

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Related Experiment Video

Updated: May 20, 2026

High-throughput Fluorometric Measurement of Potential Soil Extracellular Enzyme Activities
12:33

High-throughput Fluorometric Measurement of Potential Soil Extracellular Enzyme Activities

Published on: November 15, 2013

[Not Available].

F Leblanc, C Laurent, E Rullier

    Journal De Chirurgie
    |July 17, 2012
    PubMed
    Summary
    This summary is machine-generated.

    Lymph node dissection is crucial for rectal cancer surgery, aiding local recurrence prevention and accurate staging. However, lateral lymph node dissection is not routinely recommended due to complications and lack of survival benefit.

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    Last Updated: May 20, 2026

    High-throughput Fluorometric Measurement of Potential Soil Extracellular Enzyme Activities
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    Published on: December 28, 2016

    Area of Science:

    • Oncology
    • Surgical Oncology
    • Gastrointestinal Surgery

    Context:

    • Rectal cancer surgery involves lymph node dissection for staging and recurrence prevention.
    • Standard surgical practice includes assessing mesorectal and inferior mesenteric lymph nodes.
    • Lateral lymphadenectomy is a debated procedure with potential complications.

    Purpose:

    • To review the role and techniques of lymph node dissection in rectal cancer surgery.
    • To evaluate the efficacy and indications of different lymph node dissection types.
    • To provide guidance on lymphadenectomy in the context of rectal cancer resection.

    Summary:

    • Mesorectal lymphadenectomy should be systematic, extending at least 5cm distally.
    • Inferior mesenteric lymphadenectomy should extend to the left colic artery origin.
    • Lateral lymphadenectomy is not routinely recommended due to complications and unproven survival benefits; omission is considered only for select T1 tumors.

    Impact:

    • Informs surgical decision-making for rectal cancer treatment.
    • Highlights the importance of tailored lymph node dissection strategies.
    • Aims to optimize patient outcomes by refining surgical techniques and recommendations.