Important advances in surgical procedures and in the clinical practice of anesthesiology have prompted the production of a new edition of this text. The book has been published in five languages: English, German, Japanese, Chinese, and Portuguese. The remarkable popularity of the first eight editions in the anesthesiology community both in the United States and abroad encouraged us to update and expand its subject matter. The ninth edition is written to further improve anesthesia management for sophisticated modern surgery.

As with our previous editions, Yao & Artusio’s Anesthesiology: Problem-Oriented Patient Management was written to present a group of important clinical entities covering the most critical anesthetic problems. It is intended to provide logical and scientific fundamentals for individualized patient management.

In this ninth edition, Yao & Artusio’s Anesthesiology: Problem-Oriented Patient Management is organized by organ systems into 12 sections consisting of 63 chapters. Each chapter begins with a brief case presentation, followed by essential problems of each disease covering four areas: (1) pathophysiology and differential diagnosis, (2) preoperative evaluation and preparation, (3) intraoperative management, and (4) postoperative anesthetic management. Using a question-and-answer format, the book is designed to stress anesthetic problems and to give the anesthesiologist the opportunity to organize his or her own ideas of patient care. A reasonable answer, with updated references, follows each question.

To maintain the fresh quality of the textbook, the ninth edition has been updated with significant newer content and contributions by new authors. The text originally reflected the clinical experience of the Department of Anesthesiology at Weill Cornell Medicine—NewYork-Presbyterian Hospital. In this edition, experts from other prestigious institutions have shared their evidence-based invaluable experience and practice to make this book more universally acceptable and applicable. The material in the book is prepared for the education of the trainee as well as the practicing anesthesiologist; it also serves as a review source for continuing education. The question-and-answer format, combined with current references, enhances its educational value.

We welcome comments, criticisms, and suggestions for future editions.