Murphy’s Law and Haynes’ Law of Anesthesia Safety

  The birth of modern anesthesiology has brought a great blessing to surgical patients and is an important milestone in the development of modern medicine. From a 100-year-old man to a baby who has only just been born, from a simple appendicitis operation to a complex heart surgery, anesthesia makes all complex and delicate surgical procedures possible. Meanwhile, in today’s world of advocating pain-free medicine and humanistic care, anesthesiologists are active in various fields of hospitals (operating room, critical care rescue and resuscitation, pain treatment, painless gastroscopy, painless abortion, painless electroconvulsive therapy, painless delivery, postoperative analgesia, various minimally invasive interventions, etc.).  The Department of Anesthesiology has become one of the most important disciplines in the hospital, and gradually become a key discipline in the hospital to ensure medical safety; a leading discipline to promote “comfortable medical care”; a pivotal discipline to improve the efficiency of the hospital; a central discipline to coordinate the relationship between various departments; and a key discipline known and recognized by the society (Yu Buwei, Chairman of the National Anesthesia Society). However, since the day of its birth, anesthesia has been a key discipline. However, since the day anesthesia was born, anesthesia safety has been an important topic of interest and concern for anesthesiologists, medical workers of related disciplines, hospital administrators, and even patients.  In the field of safety (such as aviation, electric power, construction, transportation and other industries), there are two important safety laws that warn people: safety accidents can happen all the time, and they have been happening; all accidents happen as an accumulation of quantity, and there are hidden dangers, attempted aura accidents, and minor accidents before accidents occur, and finally serious accidents. This is Murphy’s Law and Hine’s Law.  In the middle of the last century, Edward A. Murphy, an engineer in the U.S. Air Force and a rocket expert, conducted a rocket experiment that was designed to determine the limits of human tolerance for acceleration. One of the experimental projects was to suspend 16 rocket accelerometers above the subject. At that time, there were two ways to fix the accelerometers on the bracket, and incredibly, someone had methodically installed all 16 accelerometers in the wrong position. Murphy then made the famous assertion that if there are two or more choices, and one of them will lead to disaster, then someone must make the choice that can lead to disaster.  (If there are two or more ways to do something, and one of those ways can result in a catastrophe, then someone will do it) This thesis was later gradually become a safety rule: as long as there is the cause of the accident, the accidents are bound to happen. And no matter how unlikely it is, it will happen and cause the greatest possible damage. Murphy further explained by the theory of mathematical statistics: in mathematical statistics, there is an important statistical law: assume that the probability of an accident occurring in an experimental activity is p>0, then the probability of at least one of the n experimental activities occurring (the probability of a bad event): pn=1-(1-pn), no matter how small the probability p that small probability events, as n gets larger, pn gets Applied to safety management, that is, to do any thing, if there is an objective wrong practice, or there is the possibility of a certain accident, no matter how small the possibility of occurrence, when repeated to do this thing, there must be someone in accordance with the wrong practice to do, the accident will always happen at some point. In other words, as long as the possibility of an accident exists, no matter how small the possibility, the accident will happen sooner or later. People call this conclusion “Murphy’s Law”. This law is regarded as one of the three major discoveries of Western culture in the twentieth century.  ”Murphy’s Law” gives people an important warning: they should always be alert to the occurrence of errors, especially the occurrence of some incredible errors. In clinical anesthesia and other medical activities, a few rare mistakes can lead to extremely serious consequences that can put the lives of patients at risk.  December 22, 1993 was an extraordinary day for the Affiliated Hospital of Weifang Medical College in Shandong Province, where the first cardiac surgery in the history of the hospital was about to be held after a thorough deployment. For this first time to be successful, the hospital has been working hard for months, from the president, surgeons, anesthesiologists to nurses, all parties are on standby. Before the operation, the chief surgeon made a detailed examination of the condition of the patient’s four-year-old Xu Chong (suffering from precordial disease) time and again. In order to stabilize Xu Chong’s emotion, the nurses chatted and talked with him many times, and the anesthesiologist made a well-thought-out anesthesia plan, and everything was in good condition. Every detail was rehearsed many times until all aspects were memorized and the people involved were sure that the operation was foolproof. The Weimar Hospital has been working hard for many years to improve its medical technology, and has created a skilled and professional medical team, which has achieved many successes.  However, the day of surgery, as the deputy chief nurse of the operating room, is also the traveling nurse of this operation, on the way to work due to a burst bicycle tire, arrived at the hospital 20 minutes late, because late, she can not be as calm as normal, never late deputy chief nurse some panic, busy not card note the first pass, anesthesiologists, surgeons are actually not serious in the patient into the operating room before personally The anesthesiologist and the surgeon did not check the patient personally before sending him into the operating room, but there was a child named Liu Dalong, 5 years old, who had his tonsils removed at the same time as Xu Chong. The first step of mistake started, and mistake after mistake, the result is: the child Liu Dalong (5 years old), due to tonsil hypertrophy to be removed, and the child Xu Chong (4 years old), due to precordial disease to be operated happily, Xu Chong removed the tonsils, Liu Dalong opened the heart, and also the wrong blood transfusion. This is the accident of accidents: the Weifang Medical College Hospital “wrong replacement surgery” case.  Behind every unlucky person, has been standing a devil named “Murphy’s Law”. It makes some possible events quickly turn into sudden accidents, causing irreparable damage.  In the field of safety, there is another important law, namely Hein’s Law. The German Hein, a pilot and the inventor of the aircraft turbine, summarized several aviation accidents and pointed out that behind every serious accident, there must be 29 minor accidents and 300 attempted precursors and 1000 accident hazards. Hain’s Law emphasizes two points: first, accidents occur as a result of the accumulation of quantity; second, the best technology and perfect regulations cannot replace people’s own quality and responsibility at the practical operation level, and any safety accident can be prevented. According to Hain’s law analysis, when a major accident occurs, we have to deal with the accident itself at the same time, but also timely “accident signs” and “accident seeds” of similar problems to investigate and deal with, so as to prevent the recurrence of similar problems, and timely solve In order to prevent the recurrence of similar problems, and to solve the potential problems of major accidents in a timely manner, we will nip the problems in the bud.  The operating room is a place where patients are operated and resuscitated, and it is the most important and core technical department of the hospital and an essential and important unit of a modern hospital. Here, different patients from various disciplines undergo different types of surgical treatment, and anesthesiologists, operating room nurses, and surgeons work together to protect surgical patients, with anesthesiologists in particular playing a leading and critical role. “Murphy’s Law” gives us a warning, “Hine’s Law” gives us a warning, details determine success or failure, this is an important law of safety management. It applies to all aspects of clinical anesthesia.  Most people think of anesthesiologists as doctors who relieve pain and render patients unconscious through pharmacological treatment. But few people recognize that the task of today’s anesthesiologists in the operating room is not only to ensure patient comfort, but more importantly to monitor and diagnose changes in vital vital functions caused by multiple factors (anesthesia, surgery, primary disease, etc.) during surgery and recovery from anesthesia, and consequently to treat them accordingly to ensure patient safety in the perioperative period. Anesthesiologists need to have a broad multidisciplinary knowledge to perform this task. In this important and critical process of the perioperative period, there are many bad events that may occur, factors of anesthesia, factors of surgery, factors of the patient, and every detail must not be wrong.  Details determine success or failure, success or failure is about safety, safety is about life. To break the spell of “Murphy’s Law” is to deeply understand “Murphy’s Law”. “Murphy’s Law and Haynes’ Law are important laws of culture, nature and society, and anesthesiologists should and must learn and understand these laws. It is important for anesthesiologists to learn and understand these laws to nip any potential errors in the bud.  ”Murphy’s Law” determined that the case of “wrong exchange surgery” in the Affiliated Hospital of Weifang Medical College inevitably happened, but Hain’s Law suggested that the accident could have been avoided. This seemingly simple and contradictory proposition will give us endless inspiration.