Lessons learned from H1N1 virus pandemicOctober 09, 2009A comprehensive study has revealed, for the first time, the impact of swine flu on the health of the general public in Australia and New Zealand. The lessons learned in Intensive Care Units (ICUs) across the two countries on the impact of the H1N1 (swine flu) virus are being shared with countries in the Northern Hemisphere to help them prepare for their upcoming flu season. The three-month study, conducted at the height of the pandemic between June and August, reveals that 722 patients were admitted to ICUs and that at the peak of the epidemic up to 20 per cent of ICU beds were occupied by patients with swine flu infection. The study was co-coordinated by the Monash University-based Australian and New Zealand Intensive Care Research Centre (ANZIC-RC). The study involved all ICUs in Australia and New Zealand with the affected patients being treated in 109 of these units. The study was conducted utilising the resources of the Australian and New Zealand Intensive Care Society Clinical Trials Group (ANZICS CTG). Dr Ian Seppelt, a specialist in Intensive Care Medicine and based at Sydney's Nepean Hospital, said the impact of the virus on ICUs across Australia and New Zealand was dramatic. "Intensive Care Units specialise in the management of patients with life-threatening illness and the surge of patients with H1N1 placed substantial strain on staff and resources. The most severely affected patients had pneumonia affecting both lungs that was caused by the virus. The number of patients admitted to ICUs with this complication represented a 600 per cent increase compared to previous years," Dr Seppelt said. Clinical Associate Professor Steve Webb, from the Intensive Care Unit at Royal Perth Hospital, was another key researcher on the project and said the information, which surfaced from the study will benefit other countries about to head into their winter flu season. "Unlike previous 'seasonal' influenza strains, which impact heavily on elderly people and people with severe coexisting medical conditions, the H1N1 virus affected a different profile. Critical illness due to swine flu was most common in infants and middle aged people; with pregnant patients, the overweight, and indigenous patients particularly affected. Overall, about one-third of patients admitted to an ICU because of swine flu had no underlying health problems. " Associate Professor Webb said. Professor Rinaldo Bellomo, Foundation Chair of the ANZICS CTG and Director of Intensive Care Research at Austin Health, Melbourne said the results of the study would be shared with health authorities in other countries to assist them better prepare for their flu season. "We have come through our flu season and our assessment of the impact of the H1N1 strain will assist them prepare for any outbreak. The H1N1 virus has taken hold in many countries already, but many countries in the Northern Hemisphere will benefit from the lessons we have learned," Professor Rinaldo Bellomo said. "Fortunately a vaccine is now available to prevent the complications of swine flu and it is important that all members of the community and especially those with risk factors, consider being vaccinated," he said. Monash University |
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| Related H1N1 Virus Current Events and H1N1 Virus News Articles CT scans better than X-rays when detecting abnormalities in patients with H1N1 virus Computed tomography (CT) scans are better than standard radiography (X-rays) in showing the extent of disease in patients with the H1N1 virus. U-M researchers find those with severe H1N1 at risk for pulmonary emboli University of Michigan researchers have found that patients with severe cases of the H1N1 virus are at risk for developing severe complications, including pulmonary emboli, according to a study published today in the American Journal of Roentgenology. Earlier flu viruses provided some immunity to current H1N1 influenza, study shows University of California, Davis, researchers studying the 2009 H1N1 influenza virus, formerly referred to as "swine flu," have identified a group of immunologically important sites on the virus that are also present in seasonal flu viruses that have been circulating for years. Flu surveillance boosts control, treatment options, says UAB travel-clinic chief Because pandemics unfold in unpredictable ways, surveillance of travel-related illness is among the most powerful tools health officials and doctors can use to detect and respond to new pathogens like the novel H1N1 influenza, says the physician who heads the University of Alabama at Birmingham (UAB) Travelers' Clinic. CT scans show patients with severe cases of H1N1 are at risk for developing acute pulmonary emboli Researchers utilizing computed tomography (CT) scans have found that patients with severe cases of the H1N1 virus are at risk for developing severe complications, including pulmonary emboli (PE). Intensive care procedure saves lives: Swine flu study A research team has warned medical experts in the Northern Hemisphere not to underestimate the serious impact of the H1N1 (Swine flu) virus with a new report showing that many patients who were critically ill with the virus required prolonged life support treatment with heart-lung machines. NIH launches 2009 H1N1 influenza vaccine trials in HIV-infected pregnant women The first clinical trials to test whether the 2009 H1N1 influenza vaccine can safely elicit a protective immune response in pregnant women launched yesterday, and a trial to conduct the same test in HIV-infected children and youth will begin next week. Aspirin Misuse May Have Made 1918 Flu Pandemic Worse The devastation of the 1918-1919 influenza pandemic is well known, but a new article suggests a surprising factor in the high death toll: the misuse of aspirin. Surgical masks vs. N95 respirators for preventing influenza among health-care workers Surgical masks appear to be no worse than, and nearly as effective as N95 respirators in preventing influenza in health care workers. Racing against the clock to distribute H1N1 flu vaccine Drug companies are sprinting ahead in a race against the clock to deliver millions of doses of vaccine for the H1N1 influenza virus before cooler weather ushers in the 2009-2010 flu season. More H1N1 Virus Current Events and H1N1 Virus News Articles |
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