Definition: In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Input: People who experience a cardiac arrest on the third floor or above of a high-rise building have lower survival rates; above the 16th floor, their chances of survival are "negligible," according to research published in the Canadian Medical Association Journal. 
  
  
  
 The ambulance may arrive on time, but elevator delays pose new dangers. The ambulance may arrive on time, but elevator delays pose new dangers. 
  
 As the high-rise population grows, the number of emergency calls to such dwellings is increasing, presenting 911 responders with unique challenges. 
  
 Building access issues, elevator delays and extended distance from the responding vehicle to the patient can all cause delays in the initiation of resuscitation. 
  
 In Toronto, Canada, high-rise residences are now home to 40% of over-65s, a population at high risk for a number of serious medical conditions, including cardiac arrest. 
  
 In North America, more than 400,000 out-of-hospital cardiac arrests occur annually. Despite efforts to improve resuscitation care, survival to hospital discharge in most communities remains below 10%. 
  
 Rapid defibrillation and high-quality cardiopulmonary resuscitation (CPR) are essential for survival. For each 1-minute delay to defibrillation, the chance of survival drops by 7-10%. 
  
 The higher the floor, the lower the chance of survival 
  
 Previous studies have measured response time between the call to 911 and arrival of an emergency vehicle on scene, but not the time required to make patient contact once there. This can take more than 4 minutes, or up to 28% of the total time from the 911 call to patient contact. 
  
 Reasons for delays include additional elevator stops in 18.6% of high-rise residential calls, adding 54 seconds per stop to the interval from arrival on scene to patient contact. Access barriers delayed 33.9% of paramedic calls, and 67.6% of calls required an entry code. Poor signage impeded 82.6% of calls, and inability to fit the ambulance stretcher into the elevator hindered 67.9% of cases. 
  
 Ian Drennan and coauthors looked into the relationship between floor of patient contact and survival after cardiac arrest in residential buildings in Toronto, focusing on the time from arrival of the vehicle to patient contact. 
  
 Of 8,216 cardiac arrest patients in private residences who were treated by 911-initiated first responders, 3.8% survived to be discharged from the hospital; the further the patient's location from the ground floor, the lower the survival rate. 
  
 Of the 5,998 (73%) patients living below the third floor, 252, or 4.2%, survived. On or above the third floor, only 48, or 2.6%, of the 1,844 patients survived. Above the 16th floor, only 0.9%, or 2 out of 216, survived; and above the 25th floor, none of the 30 who had arrests survived. 
  
 The use of automated external defibrillators (AED) was "very low." 
  
 Drennan comments: 
  
 "As the number of high-rise buildings continues to increase and as population density rises in major urban centers, it is important to determine the effect of delays to patient care in high-rise buildings on survival after cardiac arrest." 
  
 As more people take up residence at or above the third floor, the time from arrival on scene to initial patient contact will become more significant. 
  
 New interventions needed to shorten cardiac arrest response time 
  
 The researchers call for interventions aimed at shortening response times to treatment of cardiac arrest in high-rise buildings, and they outline several solutions to improve time to patient contact. 
  
 Suggestions include giving 911-initiated first responders sole access to elevators for emergency service without public interference - as during a fire - as well as emergency alerts to building staff before the arrival of first responders and better placement of defibrillators to increase bystander use. 
  
 In a linked comment, Associate Prof. Marcus Eng Hock Ong, of Singapore General Hospital, and coauthors suggest CPR/AED training for residents of high-rise apartments, a national online registry of public-access defibrillators linked to first-responder applications and using smartphones to activate volunteer first responders for patients with cardiac arrest. 
  
 Ong notes that Singapore has a multipronged approach to these situations, including a large public campaign to enroll residents' committees as first responders and to train 1 million people over the next 5 years. 
  
 Medical News Today has previously reported that bystander CPR can save lives. ||||| These crawls are part of an effort to archive pages as they are created and archive the pages that they refer to. That way, as the pages that are referenced are changed or taken from the web, a link to the version that was live when the page was written will be preserved.Then the Internet Archive hopes that references to these archived pages will be put in place of a link that would be otherwise be broken, or a companion link to allow people to see what was originally intended by a page's authors.The goal is to fix all broken links on the web . Crawls of supported "No More 404" sites. ||||| Residents of high-rise buildings had better survival rates from cardiac arrests if they lived on the first few floors, and survival was negligible for people living above the 16th floor, according to a study published in CMAJ (Canadian Medical Association Journal) 
  
 "As the number of high-rise buildings continues to increase and as population density rises in major urban centres, it is important to determine the effect of delays to patient care in high-rise buildings on survival after cardiac arrest," writes Ian Drennan, a paramedic with York Region Paramedic Services and a researcher with Rescu, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, with coauthors. 
  
 The further a patient with cardiac arrest is from the ground floor, the lower the survival rate. Of 8216 people who had cardiac arrests in private residences and were treated by 911-initiated first responders, 3.8% survived to be discharged from hospital. Of the 5998 (73%) people living below the 3rd floor who had cardiac arrests, 252 (4.2%) survived the arrest, but only 48 (2.6%) of the 1844 people living above the 3rd floor survived. When analysed floor by floor, the researchers found a survival rate of only 0.9% in those living above the 16th floor (2 of 216) and no survivors (0 of 30) in those living above the 25th floor. 
  
 The researchers note that the use of automated external defibrillators (AED) was very low. 
  
 The study looked at the interval from arrival of an emergency vehicle to 911-initiated first responders reaching a patient having a cardiac arrest. Other studies, which have also shown poor survival rates, have measured response time between the call to 911 and arrival of an emergency vehicle on scene, but not the time to reach the patient. 
  
 "The 911 response time, from emergency activation to arrival of first responders on scene, will remain relatively constant, so long as traffic patterns do not change; however, the time from arrival on scene to initial patient contact may increase as more of the population comes to live at or above the third floor," write the authors. "Thus, 911 response time may diminish in importance as a determinant for survival, whereas the time to patient contact may become more important in predicting who lives and who dies after out-of-hospital cardiac arrest." 
  
 The researchers outline several solutions to improve time to patient contact, such as giving 911-initiated first responders sole access to elevators for emergency service without public interference, similar to the access of firefighters during a fire; emergency alerts to building staff before arrival of the first responders; and better placement of defibrillators to increase bystander use. 
  
 The authors of a related commentary provide possible solutions to help improve survival rates, including CPR/AED training for residents of high-rise apartments, a national online registry of public-access defibrillators linked to first-responder applications, and using smartphones to activate volunteer first responders for patients with cardiac arrest. 
  
 "Singapore has a multipronged approach to address high-rise residential out-of-hospital cardiac arrests," writes Associate Professor Marcus Eng Hock Ong, Department of Emergency Medicine, Singapore General Hospital, with coauthors. "A large public campaign is currently underway to enrol residents' committees as first responders and to train one million people over the next five years." 
  
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Output:
As the world's ever-more urban population increasingly lives more than three stories above ground, there may be repercussions for anyone suffering a heart attack at the wrong end of a long elevator ride from the ground floor. Medics and other researchers have analyzed 8,216 cardiac arrests in private residences that involved treatment by 911-initiated first responders, and they report in the Canadian Medical Association Journal that people are twice as likely to survive a heart attack if they live below the third floor than above it. In fact, only two out of 216 people above the 16th floor survived, and zero out of 30 above the 25th floor did. "The time from arrival on scene to initial patient contact may increase as more of the population comes to live at or above the third floor," the authors write. In other words, ambulances are arriving just as quickly, but elevators are slowing first responders down. More than 400,000 out-of-hospital cardiac arrests occur in North America every year, with survival to hospital discharge often well below 10%, reports Medical News Today, which adds that for every minute a patient is delayed access to an automated external defibrillator (AED), there's a 7% to 10% drop in one's chance of surviving. As grim as the findings are, researchers note a few potential solutions, including making AEDs more widely available; providing first responders exclusive access to elevators in emergencies; and training residents of high-rise buildings in CPR and using AEDs, the researchers note in a press release. (In one Swiss town, even prostitutes are trained to use AEDs.)