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Oxygen Rich Covid Treatment Environments
Oxygen-rich environments are fueling fires at COVID-19 hospitals around the world, according to a European research group. A lack of code compliance remains the underlying issue.
A common element for treating patients who fall severely ill with COVID-19 is their need for supplemental oxygen. According to a bulletin released by the European Commission’s Joint Research Centre (JRC) in January, this is causing an uptick in deadly fires in hospitals around the world.
“JRC research shows that there have been at least 20 incidents of fires caused by oxygen-rich environments in hospitals reported in the media in 2020, most of them in hospital intensive care units,” the bulletin reads. “Of these, eight resulted in multiple fatalities. Although many hospitals successfully responded to such incidents and avoided injury, most events still required evacuation of staff and severely ill patients, while at the same time depriving oxygen ventilation to those in critical condition for the duration of the event.”
While COVID-19 has led to an increased use of oxygen in many hospitals, thereby increasing the fire risk, experts say the root of the issue lies in a lack of code use or compliance—the same factor that’s been driving the international hospital fire problem since well before the pandemic gripped the globe.
“Local building codes and international codes and standard, such as those offered by NFPA, can solve all these issues,” said Hemant Khadse, CEO of India-based fire protection consulting agency East Corp Group. “Societal awareness of codes and code enforcement needs to improve. People are reactive in nature, but they need to become more proactive when it comes to life safety.”
Oxygen and other hazards
While oxygen itself is not considered a flammable gas, it is an oxidizer, which means it can cause a fire to spread easier and faster.
Fires made worse by high levels of oxygen in health care settings have traditionally been associated with operating rooms, where oxygen and other oxidizers like nitrous oxide are routinely administered to patients. “Emphasis on oxygen delivery is critical not only because of increasing flammability but also because of increased rates of injury when operating close to an oxygen source,” a study published last year in the journal Anesthesiology reads.
According to the JRC, the coronavirus pandemic has compounded the issue by dramatically increasing the need for oxygen at hospitals, especially in intensive care units and emergency rooms. “Due to the increased number of oxygen ventilators … the oxygen concentration is more readily elevated,” the research group said, adding that a seemingly slight rise in the oxygen concentration in air from a natural 21 percent to 24 percent is enough to introduce a risk. “Given that infectious units have a low air exchange rate with the outside environment by design, the potential for a dangerous oxygen-rich environment is increased.”
Codes and standards like NFPA 99, Health Care Facilities Code, and NFPA 53, Recommended Practice on Materials, Equipment, and Systems Used in Oxygen-Enriched Atmospheres, provide guidance on the safe storage, handling, and administration of medical gases like oxygen and nitrous oxide. But in countries where code adoption or compliance isn’t strong, safeguards may be lacking. A 2014 study published in the Journal of Clinical Anesthesia, for example, found that many hospital fires in India occur in oxygen-rich environments. Even so, according to the study’s authors, “very few of these hospitals are aware of the existence of any international codes and standards for oxygen handling.”
In India, Khadse said COVID has not only led to more oxygen use, but that use is also occurring in facilities that may have been constructed or modified “hurriedly … and without any life safety review.” There have been “dozens” of fires in India over the past several months, he said.
“Apart from the large quantity of oxygen cylinders at these hospitals that help the spread of fire, loose electrical wiring, electrical load imbalancing, and malfunction of appliances are some other reasons for these fires,” Khadse said. Then, he added, poor smoke management infrastructure leads to the spread of smoke and, ultimately, deaths.
Like Khadse, Jim Pauley, NFPA president and CEO, believes the use of current codes and standards can go a long way toward addressing the fire, electrical, and other life safety hazards that exist in hospitals worldwide. “Safety is a system that should be taken very seriously, especially in hospitals where many occupants will be unable to evacuate on their own or without assistive equipment,” Pauley told FSAI Journal, the magazine of the Fire & Security Association of India, for an article published in March. “Standards that pertain to health care facilities can be a tremendous resource around the globe.” He specifically referenced NFPA 99, NFPA 110, Standard for Emergency and Standby Power Systems, and NFPA 101®, Life Safety Code®.
Overall, a review of media reports conducted by NFPA Journal shows that at least 80 people have died in hospital fires since the COVID-19 pandemic began in the spring of 2020. Oxygen-rich environments are just one of many factors that have led to poor outcomes in these incidents, which have occurred worldwide, from India to Russia to Brazil. No incidents have been reported in the United States, however.
First responders evacuate patients from a hospital in Russia, after a fire broke out there in October. (Getty Images)
Jamie Gutierrez, NFPA’s international development director for Latin America, shed light on this in a blog he wrote in February, in response to a string of COVID-19 hospital fires in Latin America.
“Each of these events shares a common thread—ignorance or dismissal of danger signs, panic reactions, or stampede tendencies,” Gutierrez wrote. “The incidents also showed inappropriate use of flammable and toxic materials, the absence or ineffectiveness of basic security measures, deficiencies in regulatory framework, and a concerning lack of training in evacuation planning, among other proactive safety measures. All of these safety components and a few others need to be addressed if we are going to reduce risk.”
In the months preceding the coronavirus pandemic, NFPA Journal covered the international hospital fire problem in “Burn Treatment” (January/February 2020).
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