A rapid response system (RRS) is a system implemented in many hospitals designed to identify and respond to patients with early signs of clinical deterioration on non-intensive care units with the goal of preventing respiratory or cardiac arrest. [1] A rapid response system consists of two clinical components, an afferent component, an efferent component, and two organizational components – process improvement and administrative. [2]
The afferent component consists of identifying the input early warning signs that alert a response from the efferent component, the rapid response team. [3] Rapid response teams are those specific to the US, the equivalent in the UK are called critical care outreach teams, and in Australia are known as medical emergency teams, though the term rapid response teams is often used as a generic term. [4] In the rapid response system of a hospital's pediatric wards a prequel to the rapid response team known as a rover team is sometimes used that continuously monitors the children in its care. [5]
The afferent component, or identification limb, also known as the track-and-trigger system, uses standardized tools to track early signs of reversible clinical deterioration and trigger a call to, and response from the efferent component, or response limb. [6] [7] Examples of afferent tools include single-parameter calling criteria and multi-parameter early warning scores. [1] These tools can predict clinical deterioration based upon the patient’s medical condition, and detect deterioration through the patient’s state such as a high respiratory rate. [2] Single-parameter calling criteria require that only one criterion be met before activating the efferent component. Criteria may be based on vital signs, diagnoses, events, subjective observations, or concerns of the patient. [2] Multi-parameter tools are more complex in that they combine several parameters into a single early warning score (EWS). [2]
METs were originally activated exclusively by bedside clinicians in need of emergency assistance. Recently, many hospitals have begun to allow families to activate a MET if they feel the care team is not adequately addressing their concerns. The team may differ in composition from the clinician-activated MET such as including a patient relations coordinator. [8]
Family-activated METs were put in place as a response to the preventable death of Josie King in 2001. King was 18-months old when she died at Johns Hopkins Hospital in Baltimore, from medical errors and delays in escalation of care despite her family’s concerns. As a result of the highly publicized death, the Children’s Hospital of Pittsburgh began a program called Condition HELP that allows families to activate a MET. Families receive training on Condition HELP when the patient is admitted and are asked to voice concerns to their care team before activating the MET. [8]
The Ryan's Rule initiative was trialled in some public hospitals in Queensland, Australia in 2013. It allows patients, their carers, friends and family to initiate a graduated escalation of care if they are concerned that the patient is not improving as expected. In 2016, Ryan's Rule was made available across all public hospitals in the Queensland Health system. Similar policies are called "REACH" in New South Wales and "CARE" in Australian Capital Territory. [9]
Martha's Rule was introduced in NHS England hospitals from April 2024. It is initially being rolled out in 100 hospitals. It will allow patients, their families and carers, and hospital staff, to access a rapid review by the critical care outreach team if they are worried about the patient's condition. [10]
The efferent component is a rapid response team – a multidisciplinary team trained in early resuscitation interventions, and advanced life support that rushes to the deteriorating patient’s bedside to prevent respiratory and cardiac arrest in order to improve the patient’s outcomes. The team is known in the US as a rapid response team (RRT), in the UK as a critical care outreach team (CCOT), and in Australia as a medical emergency team (MET), but rapid response team is also used generically.The team responds to calls placed by clinicians or families at the bedside who have detected deterioration. [11] [4] It may also provide proactive outreach to patients at high risk for deterioration. Composition of the teams may vary but often include one critical care attending physician or fellow, at least one nurse, and a respiratory therapist. [12]
The process improvement component uses evidence-based evaluation of the RRS to determine its effectiveness and to improve the system through targeted interventions. It works closely with the administrative component, clinicians (especially those on RRTs), and quality improvement experts to evaluate three measures: outcomes measures, process measures, and balancing measures. [12]
Rates of hospital-wide mortality and respiratory and cardiac arrest, which are exceedingly rare and may or may not be preventable, are common outcome measures. [13] Rapid response teams appear to decrease the rates of respiratory and cardiac arrest outside the intensive care unit. [14] [15] [16] [17] They also appear to decrease the chance of death in hospital. [14] Overall effectiveness of rapid response teams is somewhat controversial due to the variability across studies [15] [18] [19] as is the overall effectiveness of the rapid response system in improving patient safety. [13] [20] More recent work uses proximal outcome measures, such as the Children’s Resuscitation Intensity Scale (measures level of care within 12 hours pre-transfer), [21] the Clinical Deterioration Metric (measures level of care within 12 hours post-transfer), [22] and UNSAFE transfers (measures level of care within 1 hour post-transfer). [23]
Process measures determine if the RRS is used as intended. Measures include the MET call rate, percentage of MET calls that result in transfer to the ICU, the time between initial physiologic abnormality and admission to ICU, timing of calls, reasons for MET calls, and evaluation of early warning scores using sensitivity and specificity. [24] [25] [26]
Balancing measures evaluate any unintended consequences of the RRS. Identified barriers to activating the MET include the primary team’s overconfidence in their ability to stabilize the patient, poor communication, hierarchal problems, and hospital culture. [27] [28] [29] Interventions to overcome barriers include improved intradisciplinary staff education, protocol requiring activation when calling criteria are met, and use of “champions” to foster cultural change. [30] [31]
The administrative component oversees the planning, implementation, and maintenance phases for the RRS. A formal committee of frontline clinicians and ward and ICU leaders operate the administrative component. [12] Cost effectiveness of RRS implementation has not been rigorously studied. [16]
Lee and colleagues developed the first reported MET in 1995 in Liverpool Hospital in Australia. [32] The first pediatric RRS was implemented in 2005 by Tibballs, Kinney, and colleagues at Royal Children’s Hospital in Australia which included vital sign ranges that differed by age group. [33] Since its development, the RRS has been implemented around the world. The RRS became a standard of hospitals in the U.S. after its promotion by the Institute for Healthcare Improvement in 2005 and the Joint Commission in 2008. [34] [35] Outside the U.S., RRS implementation has been encouraged and adopted by several national organizations, such as the Ministry of Health and Long-term Care in Canada, [36] the UK National Institute for Health and Clinical Excellence, [37] and the Australian Commission on Safety and Quality in Healthcare. [38]
In medicine, triage is a process by which care providers such as medical professionals and those with first aid knowledge determine the order of priority for providing treatment to injured individuals and/or inform the rationing of limited supplies so that they go to those who can most benefit from it. Triage is usually relied upon when there are more injured individuals than available care providers, or when there are more injured individuals than supplies to treat them.
Cardiac arrest is when the heart suddenly and unexpectedly stops beating. When the heart stops beating, blood cannot properly circulate around the body and the blood flow to the brain and other organs is decreased. When the brain does not receive enough blood, this can cause a person to lose consciousness and brain cells can start to die due to lack of oxygen. Coma and persistent vegetative state may result from cardiac arrest. Cardiac arrest is also identified by a lack of central pulses and abnormal or absent breathing.
A paramedic is a healthcare professional trained in the medical model, whose main role has historically been to respond to emergency calls for medical help outside of a hospital. Paramedics work as part of the emergency medical services (EMS), most often in ambulances. They also have roles in emergency medicine, primary care, transfer medicine and remote/offshore medicine. The scope of practice of a paramedic varies between countries, but generally includes autonomous decision making around the emergency care of patients.
Advanced cardiac life support, advanced cardiovascular life support (ACLS) refers to a set of clinical guidelines established by the American Heart Association (AHA) for the urgent and emergent treatment of life-threatening cardiovascular conditions that will cause or have caused cardiac arrest, using advanced medical procedures, medications, and techniques. ACLS expands on Basic Life Support (BLS) by adding recommendations on additional medication and advanced procedure use to the CPR guidelines that are fundamental and efficacious in BLS. ACLS is practiced by advanced medical providers including physicians, some nurses and paramedics; these providers are usually required to hold certifications in ACLS care.
A do-not-resuscitate order (DNR), also known as Do Not Attempt Resuscitation (DNAR), Do Not Attempt Cardiopulmonary Resuscitation (DNACPR), no code or allow natural death, is a medical order, written or oral depending on the jurisdiction, indicating that a person should not receive cardiopulmonary resuscitation (CPR) if that person's heart stops beating. Sometimes these decisions and the relevant documents also encompass decisions around other critical or life-prolonging medical interventions. The legal status and processes surrounding DNR orders vary in different polities. Most commonly, the order is placed by a physician based on a combination of medical judgement and patient involvement.
Major trauma is any injury that has the potential to cause prolonged disability or death. There are many causes of major trauma, blunt and penetrating, including falls, motor vehicle collisions, stabbing wounds, and gunshot wounds. Depending on the severity of injury, quickness of management, and transportation to an appropriate medical facility may be necessary to prevent loss of life or limb. The initial assessment is critical, and involves a physical evaluation and also may include the use of imaging tools to determine the types of injuries accurately and to formulate a course of treatment.
Thromboelastography (TEG) is a method of testing the efficiency of blood coagulation. It is a test mainly used in surgery and anesthesiology, although increasingly used in resuscitations in emergency departments, intensive care units, and labor and delivery suites. More common tests of blood coagulation include prothrombin time (PT) and partial thromboplastin time (aPTT) which measure coagulation factor function, but TEG also can assess platelet function, clot strength, and fibrinolysis which these other tests cannot.
Hospital emergency codes are coded messages often announced over a public address system of a hospital to alert staff to various classes of on-site emergencies. The use of codes is intended to convey essential information quickly and with minimal misunderstanding to staff while preventing stress and panic among visitors to the hospital. Such codes are sometimes posted on placards throughout the hospital or are printed on employee identification badges for ready reference.
Door-to-balloon is a time measurement in emergency cardiac care (ECC), specifically in the treatment of ST segment elevation myocardial infarction. The interval starts with the patient's arrival in the emergency department, and ends when a catheter guidewire crosses the culprit lesion in the cardiac cath lab. Because of the adage that "time is muscle", meaning that delays in treating a myocardial infarction increase the likelihood and amount of cardiac muscle damage due to localised hypoxia, ACC/AHA guidelines recommend a door-to-balloon interval of no more than 90 minutes. As of 2006 in the United States, fewer than half of STEMI patients received reperfusion with primary percutaneous coronary intervention (PCI) within the guideline-recommended timeframe. It has become a core quality measure for the Joint Commission on Accreditation of Healthcare Organizations (TJC).
Emergency medical services in France are provided by a mix of organizations under public health control. The central organizations that provide these services are known as a SAMU, which stands for Service d’aide médicale urgente. Local SAMU organisations operate the control rooms that answer emergency calls and dispatch medical responders. They also operate the SMUR, which refers to the ambulances and response vehicles that provide advanced medical care. Other ambulances and response vehicles are provided by the fire services and private ambulance services.
An early warning system (EWS), sometimes called a between-the-flags or track-and-trigger chart, is a clinical tool used in healthcare to anticipate patient deterioration by measuring the cumulative variation in observations, most often being patient vital signs and level of consciousness. EWSs emerged in the 1990s with research finding deterioration was often preceded by abnormal vital signs. Early warning systems are heavily utilised internationally with some jurisdictions mandating their use.
A pediatric intensive care unit, usually abbreviated to PICU, is an area within a hospital specializing in the care of critically ill infants, children, teenagers, and young adults aged 0–21. A PICU is typically directed by one or more pediatric intensivists or PICU consultants and staffed by doctors, nurses, and respiratory therapists who are specially trained and experienced in pediatric intensive care. The unit may also have nurse practitioners, physician assistants, physiotherapists, social workers, child life specialists, and clerks on staff, although this varies widely depending on geographic location. The ratio of professionals to patients is generally higher than in other areas of the hospital, reflecting the acuity of PICU patients and the risk of life-threatening complications. Complex technology and equipment is often in use, particularly mechanical ventilators and patient monitoring systems. Consequently, PICUs have a larger operating budget than many other departments within the hospital.
Slow code refers to the practice in a hospital or other medical centre to purposely respond slowly or incompletely to a patient in cardiac arrest, particularly in situations for which cardiopulmonary resuscitation (CPR) is thought to be of no medical benefit by the medical staff. The related term show code refers to the practice of a medical response that is medically futile, but is attempted for the benefit of the patient's family and loved ones. However, the terms are often used interchangeably.
Vital Sign Alert System is an alert system designed by nurses at Sentara Norfolk General Hospital in Norfolk, Virginia. The alert system, which replaced an ineffective early warning scoring (EWS) system, is a unique creation designed specifically to enhance patient monitoring on medical–surgical and step-down nursing units without increasing the nurse's workload.
Pediatric early warning signs (PEWS) are clinical manifestations that indicate rapid deterioration in pediatric patients, infancy to adolescence. A PEWS score or PEWS system refers to assessment tools that incorporate the clinical manifestations that have the greatest impact on patient outcome.
Respiratory compromise describes a deterioration in respiratory function with a high likelihood of rapid progression to respiratory failure and death. Respiratory failure occurs when inadequate gas exchange by the respiratory system occurs, with a low oxygen level or a high carbon dioxide level.
Critical emergency medicine (CREM) refers to the acute medical care of patients who have medical emergencies that pose an immediate threat to life, irrespective of location. In particular, the term is used to describe the role of anaesthesiologists in providing such care.
Ken Hillman is an Australian doctor and researcher. He is an intensive care specialist with research interests including health system reforms and end of life care. He has been Professor of Intensive Care at the University of New South Wales since 1990.
ReSPECT stands for Recommended Summary Plan for Emergency Care and Treatment. It is an emergency care and treatment plan (ECTP) used in parts of the United Kingdom, in which personalized recommendations for future emergency clinical care and treatment are created through discussion between health care professionals and a person. These recommendations are then documented on a ReSPECT form.
Post-cardiac arrest syndrome (PCAS) is an inflammatory state of pathophysiology that can occur after a patient is resuscitated from a cardiac arrest. While in a state of cardiac arrest, the body experiences a unique state of global ischemia. This ischemia results in the accumulation of metabolic waste which instigate the production of inflammatory mediators. If return of spontaneous circulation (ROSC) is achieved after CPR, then circulation resumes, resulting in global reperfusion and the subsequent distribution of the ischemia products throughout the body. While PCAS has a unique cause and consequences, it can ultimately be thought of as type of global ischemia-reperfusion injury. The damage, and therefore prognosis, of PCAS generally depends on the length of the patient's ischemic period; therefore the severity of PCAS is not uniform across different patients.
{{cite journal}}
: Cite journal requires |journal=
(help)