Clinics
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Randomized Controlled Trial Comparative Study
Internal jugular vein cannulation: an ultrasound-guided technique versus a landmark-guided technique.
To compare the landmark-guided technique versus the ultrasound-guided technique for internal jugular vein cannulation in spontaneously breathing patients. ⋯ The findings of this study indicate that internal jugular vein catheterization guided by real-time ultrasound results in a lower access time and a lower rate of immediate complications.
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To compare variations of plethysmographic wave amplitude (DeltaPpleth) and to determine the percent difference between inspiratory and expiratory pulse pressure (DeltaPp) cutoff values for volume responsiveness in a homogenous population of postoperative cardiac surgery patients. ⋯ DeltaPpleth is well correlated with DPp and constitutes a simple and non-invasive method for assessing fluid responsiveness in patients following cardiac surgery.
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To develop a Brazilian version of the gesture behavior test (GBT) for patients with chronic low back pain. ⋯ The Brazilian version of the GBT proved to be a reproducible and valid instrument. In addition, according to the questionnaire results, more disabled patients exhibited more protective gesture behavior related to low-back.
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Mobile phones have become indispensable in the daily lives of men and women around the globe. As cell phone use has become more widespread, concerns have mounted regarding the potentially harmful effects of RF-EMR from these devices. ⋯ Given the results of the present study, we speculate that RF-EMR from mobile phones negatively affects semen quality and may impair male fertility.
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To evaluate and compare the efficiency of humidification in available heat and moisture exchanger models under conditions of varying tidal volume, respiratory rate, and flow rate. ⋯ Our data indicate that heat and moisture exchangers are more efficient when used with low tidal volume ventilation. The roles of flow and respiratory rate were of lesser importance, suggesting that their adjustment has a less significant effect on the performance of heat and moisture exchangers.