Journal of clinical monitoring and computing
-
J Clin Monit Comput · May 2021
LetterConductive heating mattress leads to ECG changes that mimic pacemaker spikes.
Hypothermia is a common perioperative complication. To prevent perioperative hypothermia amongst other things electrical heating mattresses are used. ⋯ In this case the ECG monitoring suddenly showed spikes that looked like spikes from an implanted pacemaker. When turning off the heating mattress the spikes disappeared and returned after turning on the heating mattress again.
-
J Clin Monit Comput · May 2021
Randomized Controlled TrialEffect of ketamine on the NeuroSENSE WAVCNS during propofol anesthesia; a randomized feasibility trial.
Dose-dependent effects of ketamine on processed electroencephalographic depth-of-hypnosis indices have been reported. Limited data are available for the NeuroSENSE WAVCNS index. Our aim was to establish the feasibility of closed-loop propofol-remifentanil anesthesia guided by the WAVCNS index in the presence of an analgesic dose of ketamine. ⋯ This effect should be considered when using the WAVCNS to guide propofol-remifentanil dosing. Trial Registration ClinicalTrails.gov No. NCT02908945.
-
J Clin Monit Comput · May 2021
Choosing the best supraglottic airway for ophthalmic general anaesthesia: a manikin study.
General anaesthesia is sometimes favoured over regional anaesthesia in ophthalmic surgery. The use of supraglottic airway (SGA) or laryngeal mask airway (LMA) as the primary airway device is increasing due to numerous advantages over tracheal intubation. Compared with 1st generation SGAs, 2nd generation SGAs have an added benefit of isolating the airway from the alimentary tract. ⋯ We also describe a novel technique of utilising a 1st generation SGA with placement of an orogastric tube, although with some reservations. This study has several limitations and transferability of our findings into clinical practice is questionable as the use of a manikin may not fully imitate the real condition of the patient. Our study is the first study comparing vertical projected height of different SGAs in manikin, but future studies should investigate the use of SGA in the clinical setting during ophthalmic surgery.
-
J Clin Monit Comput · May 2021
A new photoplethysmographic device for continuous assessment of urethral mucosa perfusion: evaluation in a porcine model.
This study proposes to evaluate an innovative device consisting of an indwelling urinary catheter equipped with a photoplethysmography (PPG) sensor in contact with the urethral mucosa that provides a continuous index called urethral perfusion index (uPI). The goal of this study was to determine if the uPI could bring out tissue perfusion modifications induced by hypotension and vasopressors in a porcine model. Twelve piglets were equipped for heart rate, MAP, cardiac index, stroke volume index, systemic vascular resistance index and uPI monitoring. ⋯ This relationship, assessed with the GLMM, yielded a significant positive fixed effect coefficient (+ 0.2, P < 0.00001) below the DT and a significant negative fixed effect (- 0.14, P < 0.00001) above DT. In an experimental setting, the PPG device and its index uPI permitted the detection of urethral mucosa perfusion alterations associated with hypotension or excessive doses of vasopressors. Further studies are needed to evaluate this device in a clinical context.