In British Columbia, Canada, recommended maximum waiting times for CABG surgery are six weeks for semi-urgent cases and twelve weeks for cases that are non-urgent. Heart surgeons decide on the level of urgency using a common algorithm based on the severity of the patient’s condition and the expected benefit of surgery.
Boris Sobolev, Canada Research Chair from The University of British Columbia, led a team of researchers at the Vancouver Coastal Health Research Institute that investigated the outcome of heart bypass surgery among patients who were either treated on time or made to wait. He said, “Our findings suggest a significant survival benefit from performing surgery within the time deemed acceptable by consultant surgeons”.
In order to contain costs, many health care systems use waiting lists. Establishing a time that patients can safely wait for their operations is generally perceived to be a suitable method for preventing adverse outcomes. Surprisingly, however, until now there have been no direct estimates of the benefits gained from performing CABG surgery in a timely manner. According to the authors, “uncovering the relationship between timing of surgery and the risk of post-operative death is important in deciding how much capacity is required in the health system to avoid the kind of unacceptable delays that we now know will place patients at risk”.
During the study period, of the 7316 patients who underwent CABG on a semi-urgent and non-urgent basis, 97 died in hospital. There were 27 deaths among the 2675 patients who had early surgery and 70 deaths among the 4641 patients who had late surgery.
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In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
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The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
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