4 Jaypee Brothers Medical Publishers (P) Ltd

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© 2016, Jaypee Brothers Medical Publishers

The views and opinions expressed in this book are solely those of the original contributor(s)/author(s) and do not necessarily represent those of editor(s) of the book.

All rights reserved. No part of this publication may be reproduced, stored or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior permission in writing of the publishers.

All brand names and product names used in this book are trade names, service marks, trademarks or registered trademarks of their respective owners. The publisher is not associated with any product or vendor mentioned in this book.

Medical knowledge and practice change constantly. This book is designed to provide accurate, authoritative information about the subject matter in question. However, readers are advised to check the most current information available on procedures included and check information from the manufacturer of each product to be administered, to verify the recommended dose, formula, method and duration of administration, adverse effects and contraindications. It is the responsibility of the practitioner to take all appropriate safety precautions. Neither the publisher nor the author(s)/editor(s) assume any liability for any injury and/or damage to persons or property arising from or related to use of material in this book.

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First Edition: 2016

For a long time, there was a felt need for a comprehensive book on anesthesia equipment in our continent, written by Indian authors. This is because the standards differ in different countries. Most books on equipment are based on American standards as there are stringent rules prescribed by ASTM (American Society for Testing and Materials, International) to be followed. Moreover, nomenclature differs from one country to another that raises lot of doubts in the minds of residents. This book has been written predominantly by authors of Indian origin who felt the need for such a book.

This book is a treasure trove of facts and detailed information about how things work in anesthesia and the physics, mathematics, and engineering that serve as their basis. Clear, and straightforward figures drawn to show basic principles provide great clarity. Simple language effectively teaches both simple and complex concepts. Nomenclature is different in different countries and this book explains their relationships. Adding to Dr Yasodananda K Areti's teaching in developing countries, Dr Bhavani Shankar Kodali's teaching ventilation monitoring (www.capnography.org; www.capnography.com) based in a well-developed country (USA) for twenty years brings out the latest anesthesia advances.

As I read the book, I found the following to be most striking:

“Learning gives creativity, Creativity leads to thinking, Thinking provides knowledge, Knowledge makes you great.”

Applied physics, equipment and clinical monitoring form a major portion of the curriculum for postgraduate students. These topics cover nearly 25% of examination topics. They are quite complicated, and the concepts are difficult to understand for many postgraduate students. We are always challenged with the question as to how much applied physics any anesthesiologist must know. We always opine that if one is armed with knowledge, it will never be regretted. If learning was to be limited, the technological developments in the last five decades would never have been witnessed. Consequently, our specialty and our patients would have been exposed to obsolete technology.

We wish to acknowledge the University of the West Indies for facilitating this book. We would like to thank Mr Emmerson Haynes and Mr Muralidhar Areti for their assistance with illustrations.