Objective To evaluate the effect of intraoperative combined forced-air warming and fluid warming system on patient＇s core temperature, blood loss, transfusion demand, extubation time, and incidence of postoperative s...Objective To evaluate the effect of intraoperative combined forced-air warming and fluid warming system on patient＇s core temperature, blood loss, transfusion demand, extubation time, and incidence of postoperative shivering. Mothods Forty patients with American Society of Anesthesiologists physical status I and II, aged 18-70 years, scheduled for elective abdominal surgery were randomly assigned to receive intraoperative warming from a forced-air blanket and fluid warming system or conventional cotton blanket, 20 in each group. The core temperature was recorded every 20 minutes during the operation, as well as the blood loss, blood transfusion, extubation time, and incidence of postoperative shivering. Results The core temperature at the end of the surgery in the warming group was significantly different from that in the control group （36.4±0.4℃ vs. 35.3±0.5℃, P〈0.001）. Application of intraoperative warming significantly shortened the time between the end of the surgery and extubation （P〈0.01）. Postoperative shivering occurred in 30% of the patients in the control group compared to no patient in the warming group （P 〈0.01）. Conclusion Active warming with air-forced blanket and fluid warming system provides sufficient heat to prevent hypothermia during abdominal surgery.展开更多
Since the Industrial Revolution, humanity has been intensifying the burning of fossil fuels and as a consequence, the average temperature on Earth has been increasing. The 20th century was the warmest and future prosp...Since the Industrial Revolution, humanity has been intensifying the burning of fossil fuels and as a consequence, the average temperature on Earth has been increasing. The 20th century was the warmest and future prospects are not favorable, that is, even higher temperatures are expected. This demonstrates the importance of studies on the subject, mainly to predict possible environmental, social and economic consequences. The objective of this work was to identify the interference of the increase in ambient temperature in the dynamics of fluids, such as ocean waves advancing over the continent. For this, thermal energy was considered in the Saint-Venant equations and computational implementations were performed via Lax-Friedrichs and Adams-Moulton methods. The results indicated that, in fact, depending on the amount of thermal energy transferred to the fluid, the advance of water towards the continent can occur, even in places where such a phenomenon has never been observed.展开更多
Unintended peri-operative hypothermia is very common in surgical patients and is associated with adverse outcomes. Perioperative use of forced-air and intravenous fluid warmers is recommended for hypothermia preventio...Unintended peri-operative hypothermia is very common in surgical patients and is associated with adverse outcomes. Perioperative use of forced-air and intravenous fluid warmers is recommended for hypothermia prevention. This study evaluated the ease of use of Fluido? Compact, a new fluid warming device, and its ability to help as part of the intraoperative patient temperature management. It was used in 36 patients undergoing scheduled surgery at risk of hypothermia under regional, general or combined anesthesia, of more than one hour duration and with a predicted intravenous fluid administration of at least 1000 ml. The fluid warmer is very easy to set up. The disposable cassette has a very low (3 ml) priming volume and it is easy to handle and to place inside the warming module. Once connected to the main power outlet, it is ready to deliver fluid at target temperature in just a few seconds. Control panel is intuitive, and the one button operation system makes it safe and convenient. The combination of peri-operative patient surface warming with Mistral?-Air forced-air warming system and intravenous fluid warming with Fluido? Compact, that allowed the administration of IV perfusions at body temperature at the rate needed thus avoiding heat loss, helps to maintain intraoperative core temperature between 36.4°C and 36.8°C. A group of patients undergo a variety of surgical procedures with neuraxial, general or combined epidural-general anesthesia.展开更多
文摘Objective To evaluate the effect of intraoperative combined forced-air warming and fluid warming system on patient＇s core temperature, blood loss, transfusion demand, extubation time, and incidence of postoperative shivering. Mothods Forty patients with American Society of Anesthesiologists physical status I and II, aged 18-70 years, scheduled for elective abdominal surgery were randomly assigned to receive intraoperative warming from a forced-air blanket and fluid warming system or conventional cotton blanket, 20 in each group. The core temperature was recorded every 20 minutes during the operation, as well as the blood loss, blood transfusion, extubation time, and incidence of postoperative shivering. Results The core temperature at the end of the surgery in the warming group was significantly different from that in the control group （36.4±0.4℃ vs. 35.3±0.5℃, P〈0.001）. Application of intraoperative warming significantly shortened the time between the end of the surgery and extubation （P〈0.01）. Postoperative shivering occurred in 30% of the patients in the control group compared to no patient in the warming group （P 〈0.01）. Conclusion Active warming with air-forced blanket and fluid warming system provides sufficient heat to prevent hypothermia during abdominal surgery.
文摘Since the Industrial Revolution, humanity has been intensifying the burning of fossil fuels and as a consequence, the average temperature on Earth has been increasing. The 20th century was the warmest and future prospects are not favorable, that is, even higher temperatures are expected. This demonstrates the importance of studies on the subject, mainly to predict possible environmental, social and economic consequences. The objective of this work was to identify the interference of the increase in ambient temperature in the dynamics of fluids, such as ocean waves advancing over the continent. For this, thermal energy was considered in the Saint-Venant equations and computational implementations were performed via Lax-Friedrichs and Adams-Moulton methods. The results indicated that, in fact, depending on the amount of thermal energy transferred to the fluid, the advance of water towards the continent can occur, even in places where such a phenomenon has never been observed.
文摘Unintended peri-operative hypothermia is very common in surgical patients and is associated with adverse outcomes. Perioperative use of forced-air and intravenous fluid warmers is recommended for hypothermia prevention. This study evaluated the ease of use of Fluido? Compact, a new fluid warming device, and its ability to help as part of the intraoperative patient temperature management. It was used in 36 patients undergoing scheduled surgery at risk of hypothermia under regional, general or combined anesthesia, of more than one hour duration and with a predicted intravenous fluid administration of at least 1000 ml. The fluid warmer is very easy to set up. The disposable cassette has a very low (3 ml) priming volume and it is easy to handle and to place inside the warming module. Once connected to the main power outlet, it is ready to deliver fluid at target temperature in just a few seconds. Control panel is intuitive, and the one button operation system makes it safe and convenient. The combination of peri-operative patient surface warming with Mistral?-Air forced-air warming system and intravenous fluid warming with Fluido? Compact, that allowed the administration of IV perfusions at body temperature at the rate needed thus avoiding heat loss, helps to maintain intraoperative core temperature between 36.4°C and 36.8°C. A group of patients undergo a variety of surgical procedures with neuraxial, general or combined epidural-general anesthesia.
