This modality could prove to be a significant clinical advantage for patients suffering from SAH. Our primary clinical endpoint will be the determination of delayed cerebral ischemia. Journal of Clinical Monitoring and Computing Impact Factor, IF, number of article, detailed information and journal factor. We propose a prospective observational study to assess real time changes in raw and processed EEG which we will correlate with clinical and radiologic evidence of vasospasm. The recent introduction of bilateral 4 channel disposable probes presents to opportunity to use EEG as a non-invasive continuous monitor for vasospasm. Processed EEG monitors have become somewhat popular in the operating setting for assessment of depth of anesthesia. EEG can detect changes in cerebral blood flow which precede clinical decline but is technically difficult to perform and not practical for continuous monitoring. Many centers rely on Cerebral Angiography for diagnosis of vasospasm however angiographic spasm does not correlate with outcome. TCD is not a continuous monitor and is user dependent. The most common bedside diagnostic tool is Transcranial Doppler (TCD) which is controversial given its low sensitivity and specificity. Hence, there is significant interest in development of a monitor. Established guidelines describe minimum requirements for reporting algorithms in healthcare it is equally important to objectify the characteristics of ideal algorithms that confer maximum potential benefits to patients, clinicians, and investigators. Early treatment of cerebral vasospasm (< 2 hr) is necessary for improved neurologic outcome. One of the major causes of reduced cerebral blood flow (CBF) after initial SAH is cerebral vasospasm. The Journal welcomes manuscripts of the following type and including the following clinical and technological content: In addition, proposals for Special Issues should be sent to the Editor-in-Chief and they should clearly state why the proposal is novel compared with existing literature and how it fits with the Journal’s scope, not least the clinical scope. Subarachnoid hemorrhage (SAH) is a prevalent and morbid condition (45%-30 day mortality). Why Should I Register and Submit Results?.Further prospective studies to evaluate the utility of acoustic analysis in surgical patients are warranted.Īcoustic Critical care Respiratory monitoring Stethoscope. We suggest that spectral analysis of breath sounds obtained from the esophageal stethoscope might be a useful non-invasive respiratory monitor for accumulation of intratracheal secretion. Identifying the presence of intratracheal secretions with power ratio at 80-200 Hz and 300-400 Hz showed the highest area under the curve of 0.955 in receiver operating characteristic curve analysis. Doyle DJ, Jarvis BA, Ruskin KJ, Engel TP. ![]() ![]() WCALive: broadcasting a major medical conference on the Internet. Patients with intratracheal secretion showed significantly higher P 80-200, P 200-300, P 300-400, P 400-500 when compared to the those of normal control patients (P = 0.003, P = 0.002, and P = 0.009, respectively), while dBm Max did not differ. Palmer TE, Cumpston PH, Ruskin K, Jones RD. Breath sounds were obtained from 20 recipients 9 pairs of breath sound before and after suctioning of secretion and 11 normal breath sounds. We also analyzed normal breath sounds from recipients without any respiratory problem as control group. Intraoperative breath sounds recorded through esophageal stethoscope were sampled in 20 s-period before and after suctioning of secretion and analyzed using fast Fourier transform. After review of anesthetic records of liver transplant recipients, we included recipients with identified intratracheal secretion during surgery. In this study, we analyzed the respiratory sound spectrum in patients with intratracheal secretion, and compared acoustic characteristics before and after therapeutic endotracheal suctioning. The accumulation of tracheobronchial secretions may contribute to a deterioration in pulmonary function and its early detection is important.
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