The Virtual Anaesthesia Textbook


The Virtual Anaesthesia Textbook

Respiration and Drugs affecting the Respiratory System

John Loadsman

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Contents:




Respiration

Anatomy and Radiology

For what I consider to be the best formatted tutorial on respiratory anatomy, all the way from the nose to the diaphram, you simply must check out Dr T. M. Scott's pages from the Memorial University of Newfoundland which deal with a pile of other systems as well. Very clear and simple explanations are accompanied by relevant hyperlinked images.

The Virtual Hospital at the University of Iowa has an absolutely superb set of pages on Lung Anatomy including many plain and CT radiographs and bronchoscopic movie files. They also have another excellent page called Introduction to Chest Radiology covering Basic Principles, Normal Anatomy, Method for Film Analysis and Basic Pulmonary Pathology.

The University of Washington has a really good Interactive Atlas of Thoracic Viscera.

The University of Texas Health Sciences Center has a Chest Radiology Review Manual. Lots of xrays and lecture notes on a variety of chest pathologies. The Harvard Medical School also has a superb set of lecture notes complete with images on chest radiology for their second year students.

Health on the Net Foundation has some links to mpegs of lung sections and various other anatomic images and movie files. (They also have some other terrific resources for medical practitioners.)

For some really good images of normal and abnormal laryngeal anatomy check out the Airway Atlas and the Pediatric Airway Obstruction Page which also has some xrays and a review of clinical findings in pediatric airway disease in a self test format. The Pediatric Database has a big list of congenital syndromes with brief descriptions of the associated abnormalities which might be useful for anaesthetists.

Medical School Study Guides at Kansas has a cool set of study notes on a pile of topics including anatomy, containing good sections on the thorax and head and neck.

Donal Shanahan of the University of Newcastle (upon Tyne) has a page of anatomy tutorials including one on the larynx. The tutorial requires javascript but there is also a set of hyperlinked lecture notes. You might also want to check out Donal's chapter on Anatomy for Anaesthetists in this textbook.

For a great set of laryngeal anatomy pages in the Spanish language take a look at La Laringe: Atlas Anatómico (Dr. Fernando Tolosa). I ran the page through the AltaVista Babelfish translator and got mixed but acceptable results in English. Try it out!


Physiology

Acid-Base Physiology is covered in Ken Pauker's chapter on Water and Electrolyte Homeostasis, Renal and Acid-Base Physiology. It is therefore not extensively covered here. It would, however, be remiss not to mention Micheal Bookallil's superb tome on this area - pH of the Blood. Stewart's approach to acid-base physiology gets extensive treatment in A Basic Approach to body pH, a page of the South African website, The Worldwide Anaesthetist. You will also find here a page on Normal Lung Function (highly recommended) and another on Normal Anion Gap (hyperchloraemic) Acidosis.

Johns Hopkins School of Medicine has a fantastic set of pages on Respiratory Physiology including tutorials, labs, an encyclopedia, and even a dictionary of respiratory related terms.

Chris Thompson's notes on Ventilation contain a good section on lung physiology and mechanics.

Medical School Study Guides at Kansas has a cool set of study notes on a pile of topics including physiology, containing a good section on respiration.

If you want to buy a book about respiratory and related physiology you might consider these from


Physical Examination

The R.A.L.E. Repository at Winnipeg in Canada has a variety of normal and pathological lung sounds (both WAV and Realaudio formats) to check out. You can also download demo versions of their new software which features more extensive sets of lung sounds as well as other fantastic teaching material. Magill University also has a Virtual Stethoscope but you'll need a java enabled browser to hear the sounds.

Respiratory Exam Basic Clinical Skills presents an organized approach based upon observation, palpation, percussion, and auscultation. Aimed at medical students they may nevertheless be useful for all of us. Other systems are presented as well.


Respiratory Tests

The Virtual Hospital in Iowa has a page to test your knowledge of pulmonary function tests. Jeff Pray also has a page to test your knowledge of spirometry and includes some good looking references and other information.

Loyola University has an incomplete set of pages on Respiratory Medicine for Medical Students with some lessons on respiratory function tests.

Heron Medical Technologies, Inc. has a small Pulmonary Waveform Library. If your intensive care or anaesthesia ventilator/monitor can display waveforms this is what you might see in a few different lung pathologies.


Monitoring

Chris Thompson has some notes on Oxygen Monitoring which has a small section on monitoring patient oxygenation.

If you use an oesophageal/precordial stethoscope you might be interested in an FM transmitter.


Sleep Disordered Breathing

For an excellent discussion of the subject (if I do say so myself :-) check out this very recently published review. There is also a review written by Robert A. Langer, M.D., in ESIA. For Sleep Apnoea patients I have a document about Anaesthesia and the Sleep Apnoea Sufferer. More general information on Sleep Disorders, for everyone from patients to specialists, can be found at or via the following pages:


Airway Management

The Toronto Hospital has a page discussing some Medical Conditions with Airway Implications. Very useful for Anaesthetists/Anesthesiologists.

The Cleveland Clinic Foundation Department of General Anesthesiology has an ENT Handbook for Anesthesia Trainees with lots of stuff about airway management.

Michael Yurkanin and Brian Woodcock have a page about Emergency Intubation. Heaps of good stuff with pics including the ASA Difficult Airway Algorithm.

Have a look at the UCSD Anesthesiology Virtual Difficult Airway Cart by J. Clarke Venable. There is also a copy of the ASA difficult airway algorithm and a cervical spine airway management algorithm.

Trauma.org has a page dedicated to anaesthesia of the trauma victim which contains several resources dealing with airway management in trauma.

The GASNet website has some airway related movie files in mpeg and avi formats.



Drugs and Respiration

The Medical Sciences Bulletin (MSB) has a page about Preventing Opioid-induced Respiratory Depression which is fairly basic and may be useful for nurses, medical students and more junior medical graduates. There is also a page about Nitric Oxide. The MSB is part of PharmInfoNet which has a huge searchable database of pharmaceutical information.

The Central Respiratory Effects of Benzodiazepines are the notes for a talk I gave. It includes a fairly extensive literature review on the subject as well as detailed info about their mechanism of action.

Everything you could possibly want to know about nitric oxide can be found at or via the Nitric Oxide Home Page.

The Worldwide Anaesthetist hosts a page about Selective Pulmonary Vasodilators. They also have a section on Lung Recruitment in Intensive Care.


We subscribe to the HONcode principles of the Health On the Net Foundation
You are visitor number since November 13, 2000. Last updated February 2002.

This chapter is kindly sponsored by Wavelength Consulting Medical Recruitment and Locum Service. We are most grateful for their assistance.

This page is one of many in the Virtual Anaesthesia Textbook. Please direct all comments about the organization of this chapter, corrections to links, and suggestions for additions to:

Dr. John Loadsman,
M.B., B.S., F.A.N.Z.C.A.
Staff Specialist Anaesthetist and Conjoint Associate Lecturer,
Royal Prince Alfred Hospital,
Sydney, Australia.

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Questions about the Virtual Anaesthesia Textbook project itself should be e-mailed to Chris Thompson.