Journal of clinical monitoring and computing
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J Clin Monit Comput · Dec 2013
Case ReportsLeakage of sevoflurane from vaporizer detected by air monitoring system: a case report.
Leakage of inhalational anesthetic gases is an important issue not only to staff health but awareness during general anesthesia. After inhalation of sevoflurane commenced, the audible and visible alarm of our custom-made air monitoring system was activated. The system measured 2-4 ppm of sevoflurane. ⋯ After changing inhalational anesthesia to intravenous anesthesia, the concentration of sevoflurane decreased immediately to zero. The filling level on the vaporizer decreased faster than usual. A thorough check of the vaporizer after surgery identified a worn down seal in the filling device of the vaporizer.
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J Clin Monit Comput · Dec 2013
Exploration of key stakeholders' preferences for pre-hospital physiologic monitoring by emergency rescue services.
To gather preferences for novel pre-hospital physiologic monitoring technologies from emergency rescue services. Qualitative semi-structured interviews and focus groups were conducted with three groups from UK Search and Rescue (SAR); (1) Extractors (e.g. SAR teams), (2) Transporters (personnel primarily responsible for casualty transport), and (3) Treaters (e.g. ⋯ A range of more intuitive, physical properties was also raised (e.g. small/compact, lightweight). SAR-specific technology should be simple to operate by those with less medical training, which means that clinical data interpretation and presentation should be carefully considered. It would be beneficial if novel monitors carried out a majority of the interpretation, allowing rescuers to proceed with their priority task of removing the casualty to safety.
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J Clin Monit Comput · Dec 2013
Comparative Study Clinical TrialCardiac index assessment using bioreactance in patients undergoing cytoreductive surgery in ovarian carcinoma.
This clinical study compared the cardiac index (CI) assessed by the totally non-invasive method of bioreactance (CIBR) (NICOM™, Cheetah Medical, Vancouver, USA) to transpulmonary thermodilution (CITD) during cytoreductive surgery in ovarian carcinoma. The hypothesis was that CI could be assessed by bioreactance in an accurate and precise manner including accurate trending ability when compared to transpulmonary thermodilution. In 15 patients CIBR and CITD were assessed after induction of anesthesia, after opening of the peritoneum, hourly during the operative procedure, and 30 min after extubation. ⋯ CI assessment by bioreactance showed acceptable accuracy and trending ability. However, its precision was poor. Therefore, CI measurement can not be solely based on bioreactance in patients undergoing cytoreductive surgery in ovarian carcinoma.
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J Clin Monit Comput · Dec 2013
Comparative Study Observational StudyThe impact of systemic vascular resistance on the accuracy of the FloTrac/Vigileo™ system in the perioperative period of cardiac surgery: a prospective observational comparison study.
FloTrac/Vigileo™ system is based on arterial pressure waveform analysis arterial pressure-based CO (APCO). Therefore, systemic vascular resistance (SVR) can influence the accuracy of APCO. The purpose of this study is to evaluate the relationship between SVR and the accuracy of APCO. ⋯ Subanalysis based on SVR with Lin's concordance correlation coefficient revealed that relatively satisfactory concordance was found in the normal-SVR group (concordance correlation coefficient ρ c = 0.51-0.56) regardless of vasoactive agent use. The accuracy of the FloTrac/Vigileo™ System (v. 3.02) is relatively satisfactory in the condition with normal SVR regardless of vasoactive agent use. Positive correlation between the bias and SVR can be the clue to the more effective use of FloTrac/Vigileo™ system.
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J Clin Monit Comput · Dec 2013
Randomized Controlled TrialThe effect of preoperative consumption of potatoes on succinylcholine-induced block and recovery from anesthesia.
Potatoes contain solanaceous glycoalkaloids (SGAs), which inhibit both butyrylcholinesterase (BuChE) and acetylcholinesterase (AChE). The present study investigated the effect of preoperative consumption of potatoes on succinylcholine-induced block and recovery from anesthesia. ASA I-II, adult patients, scheduled for elective surgery, were included in a randomized, blind and controlled study. ⋯ In addition, in both groups, BuChE levels markedly decreased after succinylcholine blockade, increased thereafter, but did not return to baseline within 24 h of consumption start. None of these differences observed in BuChE levels was statistically significant. This study suggests that potatoes eaten before anesthesia can prolong the duration of succinylcholine-induced neuromuscular block and delay recovery from anesthesia.