{"id":"W4400031926","doi":"10.1016/j.jacbts.2024.04.011","title":"Reduced Stroke Volume and Brain Perfusion Drive Postural Hyperventilation in Postural Orthostatic Tachycardia Syndrome","year":2024,"lang":"en","type":"article","venue":"JACC Basic to Translational Science","topic":"Cardiovascular Syncope and Autonomic Disorders","field":"Medicine","cited_by":12,"is_retracted":false,"has_abstract":true,"ca_institutions":"Alberta Children's Hospital; Libin Cardiovascular Institute of Alberta; Hotchkiss Brain Institute; University of Calgary","funders":"National Center for Advancing Translational Sciences; Natural Sciences and Engineering Research Council of Canada; Canadian Institutes of Health Research","keywords":"Hyperventilation; Orthostatic intolerance; Medicine; Stroke (engine); Cardiology; Stroke volume; Orthostatic vital signs; Postural Orthostatic Tachycardia Syndrome; Internal medicine; Anesthesia; Physical medicine and rehabilitation; Blood pressure; Heart failure; Ejection fraction","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.000678992,0.0001391038,0.000230475,0.0003833497,0.0001157304,0.0001190646,0.00009193648,0.00004606173,0.00007554692],"category_scores_gemma":[0.00007394116,0.0001235149,0.0001538487,0.0007976893,0.0001559232,0.0004938875,0.00003128396,0.0001552142,0.00005880333],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0001010697,"about_ca_system_score_gemma":0.000347756,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0001186828,"about_ca_topic_score_gemma":0.00004932707,"domain_scores_codex":[0.9983786,0.00003540573,0.0002599472,0.0004993881,0.0005526932,0.0002739985],"domain_scores_gemma":[0.99954,0.0000704707,0.00001958008,0.00015411,0.00005970439,0.0001561788],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"design_other","study_design_gemma":"observational","study_design_scores_codex":[0.0003428315,0.0001862052,0.1343835,0.0002908394,0.0001765594,0.0007072897,0.01056153,0.001692695,0.4096259,0.002424493,0.0007666353,0.4388416],"study_design_scores_gemma":[0.0005744138,0.0001069806,0.9870405,0.0001731112,0.00004648796,0.0003761273,0.0002064562,0.009229883,0.0001296292,0.0001241154,0.001838349,0.000153985],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9863142,0.0009688385,0.000345196,0.01057382,0.0002879419,0.0005348722,0.00002995787,0.00004971062,0.0008954452],"genre_scores_gemma":[0.9978572,0.00001464944,0.00100604,0.0003349943,0.00004525556,0.00001659734,0.00003785984,0.00001309938,0.0006743111],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.852657,"threshold_uncertainty_score":0.5036792,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.007740061178209091,"score_gpt":0.2609831634313746,"score_spread":0.2532431022531655,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}