Perioperative medicine refers to the care of patients from the time of the contemplation of surgery till the time of the patient’s full recovery, excluding the operation procedure. Such type of care is usually provided by an internal medicine generalist, intensivist or anesthesiologist. Perioperative medicine involves the care of the patients who are preparing for surgery, having a surgery, and recuperating from surgery. The knowledge about the patient specific risks, operative risks, and methods to reduce risk is closely related to this field. Preanesthetic assessment is highly crucial in ensuring the safety of the patient during perioperative care. This book is a valuable compilation of topics, ranging from the basic to the most complex advancements in the field of perioperative medicine. The various studies that are constantly contributing towards advancing technologies and evolution of this field are examined in detail. This book will prove to be immensely beneficial to students and researchers in this field.