Book excerpt: Close monitoring of patients during anesthesia is crucial for ensuring positive treatment outcomes and patient safety. The increasing availability of new technologies and the repurposing of older monitors means more patient data is at anesthesiologists' fingertips than ever before. However, this flood of options can be overwhelming. A practical resource for understanding this array of clinical monitoring options in anesthesia, this important text focuses on real-world applications in anesthesia and perioperative care. Reviewing the evidence for improved patient outcomes for monitoring technology, neurological monitoring, echocardiography systems and ultrasound are amongst the techniques covered in a head-to-toe approach. Statistics used by manufacturers to gain approval for their technology are discussed, as well as the under-appreciated risks associated with monitoring such as digital distraction. Future monitoring technologies including wearable systems are explored in depth. Focusing on applied practice, this book is an essential text for front-line healthcare professionals in anesthesia.