Skyscape Web Viewer : Clinical Anesthesia Procedures of the Massachusetts General Hospital Handbook : Image Index

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A,Electromyographic Response to Repeated Train-of-Four (Tof) Stimulation after Injection of a Nondepolarizing Agent. Each Vertical Bar is Composed of Four Individual Twitch Responses. Fade of Tof Response Eventually Leaves Only One Twitch (Approximately 90% Blockade).B,Reversal of the Blockade by Neostigmine and Atropine Given 45 Minutes Later Shows a Progressive Recovery of the Tof Response and Reduction in Fade with a Tof Ratio of 0.9
A,Normal Capnograph. I, Dead Space Expiration; II, Mixed Dead Space and Alveolar Gas Expiration; III, Alveolar Gas Expiration and Plateau; 0, Inspiration. Phase IV is an Upswing that Occurs at the End of Phase III.B,Capnographs that May Be Seen in Practice. 1, Rapidly Extinguishing Uncharacteristic Waveform, Compatible with Esophageal Intubation; 2, Regular Dips in End-Expiratory Plateau, Seen in Underventilated Lungs or in Patients Recovering from Neuromuscular Blockade; 3, Upward Shift in Baseline and Plateau, Seen with Rebreathing of Carbon Dioxide, Miscalibration, and So Forth; 4, Restrictive Pulmonary Disease; 5, Obstructive Pulmonary Disease; 6, Cardiogenic Oscillations
A and B, Schematic Demonstrating the Different Types of Endoleak after Endovascular Aneurysm Repair
Adductor Canal Block Using Ultrasound Guidance
Age-Varying Spectral Changes in the Frontal Spectrogram During Infancy to Childhood, Showing the Absence of Alpha Oscillation Power from 0 to 3 Months of Age, with a Gradual Increase in Alpha Oscillation Power Thereafter, Becoming More Prominent and Sustained at Approximately 6 Months of Age
Age-Varying Spectral Changes in the Frontal Spectrogram in Adults Ranging from 18 to 90 Years of Age, Illustrating that Alpha Oscillation Power Decreases with Age
Age-Varying Spectral Changes in the Frontal Spectrogram in Children and Young Adults from 1 to 28 Years of Age, Highlighting that, Although the Eeg Structure is Qualitatively Preserved, the Power of the Oscillations Changes As a Function of Age
Algorithm for Bradycardia
Algorithm for Newborn Resuscitation
Algorithm for Pediatric Bradycardia
Algorithm for Pediatric Cardiac Arrest
Algorithm for Pediatric Tachycardia with Pulse and Poor Perfusion
Algorithm for Pulseless Arrest
Algorithm for Tachycardia with Pulse
A Map of the Dermatomes
American Society of Anesthesiologists (ASA) difficult Airway Algorithm
Anatomic Relations for Laryngoscopy and Endotracheal Intubation
Anesthetic States and Electroencephalogram Signatures
An Example of Fracture Table Positioning on the Hana Orthopedic Table by Misuho Osi.
Apical 5-Chamber Transthoracic Echocardiographic Image
Apical Four-Chamber Probe Position
Apical Four-Chamber Transthoracic Echocardiographic Image
Apical Long-Axis (Three-Chamber) Probe Position
Apical Long-Axis (Three-Chamber) Transthoracic Echocardiographic Image
A Typical Electroencephalogram Trace Can Be Split into a Slower Oscillatory (0.1-1 Hz Component [top]) with an Overlying Higher Frequency (8-12 Hz Component [bottom])
Autoregulation Maintains a Constant Level of Cerebral Blood Flow (Cbf) over a Wide Range of Carotid Artery Mean Blood Pressures
Axillary Block Using Ultrasound Guidance
Beach Chair Positioning, Shown on the T-Max Table by Smith & Nephew.
Bernoulli Equation for Calculating Transvalvular Gradients
Construction of the Spectrogram: The Power Spectrum Plot at Several Points in Time Can Be Stacked Together to Form a 3d Spectrogram (Middle)