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Anatomical Positions

Anatomical Positions

In anatomy, several standard anatomical positions are used as references for describing the position and orientation of different body parts. These positions help provide a common frame of reference when discussing anatomical structures. The anatomical position is the standard reference point for describing the body's position and orientation. In this position:
The body is upright, facing forward, and standing erect.
The feet are parallel and flat on the floor.
The arms are hanging by the...

Parenteral Anesthetics: Overview

Parenteral Anesthetics: Overview

Intravenous anesthetics are drugs administered parenterally to induce anesthesia or sedation. Propofol is a widely used agent formulated as a 1% emulsion in soybean oil, glycerol, and egg phosphatide. It induces rapid anesthesia primarily due to its rapid distribution from the bloodstream to target tissues and is metabolized in the liver. However, it can cause significant pain on injection and hypertriglyceridemia. Fospropofol, a water-based prodrug of propofol, lacks these adverse effects.

General Anesthesia: Overview

General Anesthesia: Overview

Anesthesia is a medical procedure that uses drugs for CNS suppression to enable painless surgeries and procedures. The selection of anesthetics is influenced by their pharmacokinetic properties, side effects, and patient characteristics. Various types of anesthesia include general, local, regional, spinal, and inhalational.
General anesthesia induces unconsciousness in the whole body, while the others target specific areas or sensations. It is administered to minimize adverse effects, maintain...

Stages of General Anesthesia

Stages of General Anesthesia

Various sedation levels offer significant advantages in facilitating procedural interventions for patients undergoing medical or invasive surgical procedures. These levels span from anxiolysis to general anesthesia, providing a spectrum of sedative effects to cater to specific patient needs. Anxiolysis reduces anxiety and is achieved through minimal sedation, enabling patients to remain awake and responsive while feeling more at ease during the procedure. This level can benefit minor...

Local Anesthetics: Clinical Application as Spinal Anesthesia

Local Anesthetics: Clinical Application as Spinal Anesthesia

Spinal anesthetics are given during lower abdomen and limb surgeries to block sensory and motor neurons. They are administered in the mid to low lumbar regions, primarily acting on the cauda equina's nerve roots. The blockade level depends on the local anesthetic (LA) concentration. Usually, low LA concentrations are sufficient to block sensory fibers, while only high LA concentrations block motor fibers. Other factors like injection volume and speed, the patient's posture, and the drug...

Local Anesthetics: Clinical Application as Epidural Anesthesia

Local Anesthetics: Clinical Application as Epidural Anesthesia

Epidural anesthetics are administered in the fat-filled epidural space, the outermost part of the spinal canal. This technique is commonly employed for pain management and anesthesia during lower abdomen and pelvis surgeries or labor and delivery.
Since epidural anesthetics can be infused through an epidural catheter, all types of drugs, including short-acting ones, can be administered. Chloroprocaine and lidocaine are examples of short and long-duration anesthetics, respectively. Bupivacaine...

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Related Experiment Video

Updated: Jul 8, 2026

An Educational Video Demonstration of How to Prone a Critically Ill Intubated Patient

An Educational Video Demonstration of How to Prone a Critically Ill Intubated Patient

Published on: November 30, 2022

Anaesthesia in the prone position.

H Edgcombe¹, K Carter, S Yarrow

¹Royal Berkshire NHS Foundation Trust, London Road, Reading RG1 5AN, UK.

British Journal of Anaesthesia

|January 24, 2008

Summary

This summary is machine-generated.

Prone positioning during anesthesia enables surgical access but carries risks. Understanding physiological changes and potential complications is crucial for safe patient management and minimizing adverse events.

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Area of Science:

Anesthesiology and Perioperative Medicine
Surgical Patient Positioning
Patient Safety in Surgery

Background:

Prone positioning is essential for numerous surgical procedures, offering vital operative access.
This position induces predictable physiological alterations and potential complications.
Safe application necessitates a thorough understanding of both the benefits and risks.

Purpose of the Study:

To review the evolution and techniques of prone positioning in anesthesia.
To elucidate the physiological changes associated with prone positioning.
To identify and discuss complications, aiming to minimize associated risks.

Main Methods:

Literature review of historical development and variants of prone positioning.
Analysis of physiological alterations during prone positioning.
Discussion of documented complications and surgical techniques.

Main Results:

Prone positioning presents specific physiological challenges.
Various complications are linked to prone positioning.
Established techniques exist for managing prone positioning in surgery.

Conclusions:

Safe use of prone positioning requires comprehensive knowledge of its physiological effects.
Anticipating and mitigating risks are key to preventing complications.
This review provides insights for optimizing patient safety during prone surgery.