Towards prompt electrocardiogram acquisition in triage: Preliminary testing of a symptom-based clinical prediction rule for the Android tablet.

BACKGROUND: For patients with suspected acute coronary syndrome, international guidelines indicate that an Electrocardiogram (ECG) should be performed within 10 min of first medical contact, however success at achieving these guidelines is limited. AIMS: The purpose of this study was to develop and perform initial testing of a clinical prediction rule embedded in a tablet application, and to expedite the identification of patients who require an electrocardiogram within 10 min. METHODS: This derivation of the Acute Coronary Syndrome Application (AcSAP) comprised of three local studies, an unpublished audit and literature critique. The AcSAP was prospectively tested over four months in patients presenting to the Emergency Department (ED) of a Dublin teaching hospital. An audit form retrieved data pertaining to times of: registration to the emergency department, triage, first electrocardiogram and diagnosis. The AcSAP was subsequently evaluated by experienced triage nurses ( n=18) who had utilised it. RESULTS: The AcSAP was activated 379 times. Patients with ST Elevation Myocardial Infarction (STEMI) and non-ST Elevation Myocardial Infarction (NSTEMI) were significantly more likely to return a categorisation of 'immediate ECG' or 'ECG within 10 min' ( p<0.001). There was a significant difference in 'triage to ECG' times across categories, the 'immediate ECG' categorisation resulting in the shortest time ( p=0.002). Evaluations suggest that staff found the tool quick and easy to use and results seemed accurate. CONCLUSION: Testing of the AcSAP suggests that it accurately identifies patients who require an ECG within 10 min. As such, it has the potential to support the meeting of clinical guidelines for ECG acquisition.

Clinically relevant correlates of accurate perception of patients' thoughts and feelings.

The goal was to explore the clinical relevance of accurate understanding of patients' thoughts and feelings. Between 2010 and 2012, four groups of participants (nursing students, medical students, internal medicine residents, and undergraduate students) took a test of accuracy in understanding the thoughts and feelings of patients who were videorecorded during their actual medical visits and who afterward reviewed their video to identify their thoughts and feelings as they occurred (Test of Accurate Perception of Patients' Affect, or TAPPA). Participants' accuracy scores were then correlated with participants' attitudes toward patient-centered care, clinical course background, recall of clinical conversation, evaluations of clinical performance made by preceptors, evaluations of interpersonal skill made by standardized patients in clinical encounters, and independent coding of behavior in a clinical encounter. Accuracy in understanding patients' thoughts and feelings was significantly correlated with nursing students' clinical course experience, clinicians' favorable attitudes to psychosocial discussion, standardized patients' evaluations of medical students' interpersonal skill, independent coding of medical students' patient-centered behavior while taking a social history, and undergraduates' more accurate recall of what an actor-physician said on video. Accuracy in perceiving patients' thoughts and feelings can be objectively measured and is a skill relevant to clinical performance.

The Test of Accurate Perception of Patients' Affect (TAPPA): an ecologically valid tool for assessing interpersonal perception accuracy in clinicians.

OBJECTIVE: A clinician's ability to infer patients' thoughts and feelings is a critical component of high quality care. The goal of this article is to present a new test to measure this ability in clinicians, called the Test of Accurate Perception of Patients' Affect (TAPPA). METHODS: Audiovisual clips were taken from patients' actual medical visits. The patients reviewed the videotape after the visit to identify their thoughts and feelings during the visit. This information was used to extract short audiovisual clips for which the correct answer was the patient's report of the thought or feeling associated with that clip. The TAPPA contains 48 audiovisual clips, each responded to in a multiple choice format. RESULTS: The TAPPA showed good psychometric properties (optimal mean and good variance, adequate internal consistency, and strong re-test reliability) and convergent validity with other tests of emotion recognition. In addition, the test showed predicted better performance by female than male participants. CONCLUSION: The TAPPA promises to be a valuable tool for research and education on provider-patient relationships and quality of care. PRACTICE IMPLICATIONS: A tool for testing clinicians' understanding of patients' thoughts and feelings may contribute to better quality of care and to improved selection and training.

Diagnostic accuracy of heart-type fatty acid-binding protein for the early diagnosis of acute myocardial infarction.

OBJECTIVE: The aim of this study was to evaluate the diagnostic efficacy of multiple tests-heart-type fatty acid-binding protein (H-FABP), cardiac troponin I (cTnI), creatine kinase-MB, and myoglobin-for the early detection of acute myocardial infarction among patients who present to the emergency department with chest pain. METHODS: A total of 1128 patients provided a total of 2924 venous blood samples. Patients with chest pain were nonselected and treated according to hospital guidelines. Additional cardiac biomarkers were assayed simultaneously at serial time points using the Cardiac Array (Randox Laboratories Ltd, Crumlin, United Kingdom). RESULTS: Heart-type fatty acid-binding protein had the greatest sensitivity at 0 to 3 hours (64.3%) and 3 to 6 hours (85.3%) after chest pain onset. The combination of cTnI measurement with H-FABP increased sensitivity to 71.4% at 3 to 6 hours and 88.2% at 3 to 6 hours. Receiver operating characteristic curves demonstrated that H-FABP had the greatest diagnostic ability with area under the curve at 0 to 3 hours of 0.841 and 3 to 6 hours of 0.894. The specificity was also high for the combination of H-FABP with cTnI at these time points. Heart-type fatty acid-binding protein had the highest negative predictive values of all the individual markers: 0 to 3 hours (93%) and 3 to 6 hours (97%). Again, the combined measurement of cTnI with H-FABP increased the negative predictive values to 94% at 0 to 3 hours, 98% at 3 to 6 hours, and 99% at 6 to 12 hours. CONCLUSION: Testing both H-FABP and cTnI using the Cardiac Array proved to be both a reliable diagnostic tool for the early diagnosis of myocardial infarction/acute coronary syndrome and also a valuable rule-out test for patients presenting at 3 to 6 hours after chest pain onset.