Skin-surface warming: Heat flux and central temperature

Diagnosis, prevention and treatment of accidental and perioperative hypothermia

“…It has been proven to be highly effective [33,107] , safe, non-invasive, easy to use and superior to several other systems [9,47,67,116] . An advantage is nearly immediate achievement of the working temperature of the device [52] .…”

A reply

“…oscillometry. In children, the accuracy of the Dinamap has already been investigated with respect to intra-arterial monitoring, the standard that is most relevant in the operating theatre [3]. In this setting, the auscultatory method, which O'Brien and Atkins advocated as a reference to test their Dinamap, is seldom used in children [4, 51.…”

“…In this setting, the auscultatory method, which O'Brien and Atkins advocated as a reference to test their Dinamap, is seldom used in children [4, 51. In fact, this standard was shown to be less accurate than oscillometry when both were compared with intra-arterial pressure measurement in children [3]. The ideal study would be to compare the finger cuff with a radial arterial line for pressure monitoring.…”

“…In Lyew and Jamieson's study, the mercury sphygmomanometer has been replaced by the Dinamap 8510, the accuracy of which, to the best of our knowledge, has never been ascertained by independent validation, but the Dinamap 8100, which may use the same algorithm, has been shown to be inaccurate [3], especially for diastolic pressure and it is hardly surprising that the diastolic results were so poor. No effort has been made to correct for the difference between brachial arterial and finger blood vessel pressures and the mechanism for correcting for arm position in relation to heart level has not been described.…”

Uso da manta térmica na prevenção da hipotermia intraoperatória

“…O método mais efetivo de manutenção da normotermia intraoperatória é a prevenção por meio de aquecimento prévio, com o objetivo de aquecer a temperatura periférica em maior escala que a temperatura central e promover, após a indução anestésica, menor gradiente entre a temperatura central e periférica, menor redistribuição de calor, resultando em menor hipotermia [13][14][15][16][17][18] . Na tentativa de prevenir a hipotermia por redistribuição, Sessler et al 5 , avaliaram em sete voluntários adultos a temperatura e o tempo ideal de permanência com a manta térmica que não causasse desconforto ao paciente e fosse eficaz na prevenção Resumo objetIvo.…”