Bibliographic record
Abstract
Headpulse Biometric for Concussion Using headpulse biometrics for analyzing micromovements of the head after cardiac contraction detects 90 percent of concussion cases within 14 days of injury, according to a new study. (JAMA Netw Open. 2023;6[8]:e2328633; https://tinyurl.com/bpaaxt2m.) Researchers from the University of California, San Francisco, used a noninvasive headband with a battery-powered attachment to analyze cardiac output forces directed to the head, resulting in a waveform called a “headpulse.” Volunteers from a high-level amateur Australian football league tested the device in two phases to confirm feasibility and determine the relationship between unstructured physical activity and headpulse patterns. Physical activity was monitored with a wristband accelerometer. Researchers recorded this headpulse analysis for one month; the headpulse device detected nine percent of concussions on day zero, 50 percent by day two, and 90 percent by day 14. A more significant cranial headpulse biometric change was found in participants who had returned to play even after symptom resolution. The researchers suggested further study is needed, but said headpulse biometrics could be useful in making return-to-play decisions to prevent persistent traumatic brain injury in high-impact sports.Figure: concussion, Headpulse Biometric, micromovements, cardiac contraction, head, physical activity, symptom, OCT, imaging, coronary disease, ILUMIEN IV optimal PCI, percutaneous coronary interventions, catheter, stent, laser, thrombosis, blockages, myocardial infarction, angiography, thrombectomy, pediatric stroke, Rankin scaleOCT Imaging for Coronary Disease Abbott's ILUMIEN IV optimal PCI randomized trial found that guidance from optical coherence tomography (OCT) helped physicians achieve improved stent expansion for a greater minimal stent area during percutaneous coronary interventions, compared with the current standard of care, coronary angiography. OCT uses a catheter and near-infrared laser to capture images of vessel microstructure, which is capable of increasing the accuracy of stent placements. More than 2400 patients with medication-treated diabetes or complex-artery disease were included in the study. OCT guidance improved stent expansion by seven percent, the company announced in a press release. (Abbott. Aug. 27, 2023; https://tinyurl.com/4yutmfrb.) This larger minimal stent area could prevent future adverse events. OCT guidance was also associated with a 64 percent reduction in stent thrombosis rates, which could reduce the risk of future blockages, as well as a 39 percent reduction in cardiac death and 24 percent reduction in target vessel myocardial infarction when compared with standard angiography. Visit www.abbott.com for more information. Mechanical Thrombectomy for Pediatric Stroke A case-control study conducted in Australia and Canada following 52 pediatric patients with anterior circulation large vessel occlusion stroke found that those who received mechanical thrombectomy had significantly improved clinical outcomes compared with those who received standard medical management. Researchers used a pediatric modified Rankin scale to measure the effectiveness of mechanical thrombectomy in patients ages 2 through 18. Patients who had blood clots removed with mechanical thrombectomy had improved outcomes after three months compared with patients who only received neuroprotective medical treatment, according to the study. (JAMA Neurol. July 24, 2023; https://tinyurl.com/mr48zky7.) The researchers said they were aiming with this study to expand methods of care for pediatric stroke, which currently has a lack of clinical trial data due to its rarity. MS. TALBOT is an editorial assistant for Emergency Medicine News. Share this article on X and Facebook. Access the links in EMN by reading this on our website: www.EM-News.com. Comments? Write to us at [email protected].
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.003 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.008 | 0.003 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; both teacher heads agree on what is shown here.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".