1,854 research outputs found
Staley, Roberta
No full textcurrentAcademic Biography
BA (University of Calgary)
Diploma Journalism (Grant MacEwan)
MA Liberal Studies (Simon Fraser University)
Roberta Staley is an author, a magazine editor and writer, and a documentary filmmaker who has reported from such places as Afghanistan, Papua New Guinea, Kenya, El Salvador, Haiti, Colombia, Cambodia, South Africa, Israel, and New Zealand. She currently edits Enterprise magazine, and is a contributor to BC Business, the South China Morning Post Magazine, Ms. Magazine, Trek, the Canadian Chemical News, Corporate Knights, and Sculpture, among others. She is also a columnist for Just for Canadian Doctors/Dentists magazines. Roberta has published her first book, titled Voice of rebellion : how Mozhdah Jamalzadah brought hope to Afghanistan. It is a biography of Afghan-Canadian human rights activist Mozhdah Jamalzadah
Comment on Shore et al. Association Between Hyperglycemia at Admission During Hospitalization for Acute Myocardial Infarction and Subsequent Diabetes: Insights From the Veterans Administration Cardiac Care Follow-up Clinical Study. Diabetes Care 2014; 37: 409-418
No full textExpanding the noninvasive coronary physiology assessment with transthoracic Doppler echocardiography
No full textDoes subclinical atherosclerosis really exist in systemic sclerosis? Comment on the article by Turiel et al.
No full textEffects of acute ischaemia on intramyocardial contraction heterogeneity; new ultrasound technologies to study an old phenomenon
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Contrast-enhanced transthoracic second harmonic echo doppler with adenosine
No full textAbstractOBJECTIVESThe purpose of this study is to evaluate the feasibility in detecting blood flow in the left anterior descending coronary artery (LAD) using transthoracic color Doppler (CD) imaging (in both second harmonic and fundamental mode) along with contrast enhancement and to verify if this new noninvasive method along with adenosine is safe, rapid and effective in assessing coronary flow reserve (CFR).BACKGROUNDFeasibility of contrast-enhanced transthoracic Doppler recording (in both second harmonic and fundamental mode) of blood flow velocity in the LAD has not been assessed. Adenosine has a greater vasodilator potency and more favorable kinetics than dipyridamole and thus it can be more suitable for assessing CFR in conjunction with this method.METHODSSixty-one patients with angiographically patent LAD underwent CD (both in fundamental and harmonic mode) as well as color-guided pulsed wave (PW) Doppler recording of blood flow velocity in the distal LAD before and after intravenous contrast injection. A second group of patients (n = 77), undergoing coronary angiography, was submitted to transthoracic contrast-enhanced PW Doppler recording of blood flow velocity in the LAD using harmonic CD as a guide, at rest and during adenosine-induced hyperemia.RESULTSHarmonic CD along with echo contrast consistently improved blood flow detection in the LAD; the success rate in detecting flow of optimal quality was 88% with this approach, whereas it was 11% and 16% with CD in fundamental mode, respectively, before and after contrast. Pulsed wave Doppler results paralleled those of harmonic CD (p < 0.001 contrast harmonic vs. fundamental). In the second group of patients coronary angiography revealed 0% to <40% stenosis in 24 patients (group I), ≥40% to ≤75% in 17 patients (group II) and >75% stenosis in 34 patients (group III). There was a significant difference in CFR among the three groups of patients; CFR for peak diastolic velocity was (mean ± SD): 2.88 ± 0.7 (group I), 2.09 ± 0.5 (group II) and 1.51 ± 0.5 cm/s (group II) (p < 0.05 group I vs. both group II and group III; p < 0.05 group II vs. group III). The whole examination took less than 10 min.CONCLUSIONSContrast-enhanced second harmonic Doppler recording of blood velocity in the LAD is highly feasible and in combination with adenosine it is a rapid, safe and effective method for assessing CFR ratio
Ocular Manifestations and Complications of Patent Foramen Ovale: A Narrative Review
No full textPatent foramen ovale (PFO) is a prevalent congenital cardiac anomaly associated with a persistent opening between the atrial septum, allowing communication between the left and right atria. Despite often being asymptomatic, PFO can lead to various clinical presentations, including cryptogenic stroke and other embolic events. Transient visual disturbances, alterations in the visual field, migraine with aura, impaired eye movement and endogenous eye infections may prompt patients to seek ophthalmological consultation. Understanding these diverse clinical scenarios is crucial for early detection, appropriate management and mitigating the morbidity burden associated with PFO. This narrative review aims at examining the spectrum of clinical presentations of ocular pictures associated with PFO. The pathophysiology, diagnosis and treatment methods for PFO will be described, emphasizing the importance of a multidisciplinary approach involving ophthalmologists, cardiologists, neurologists and imaging specialists. In the future, prospective studies and clinical trials are warranted to provide further insights into the preventive role and optimal therapeutic strategies for managing PFO-related ocular complications, ultimately guiding clinical decision making and optimizing patient care
Integrated backscatter heterogeneity index: a new tool to evaluate subendocardial ischemia
No full textAlexithymia affects the time from symptom onset to calling the emergency system in STEMI patients referred for primary PCI
No full textBackground STEMI programs have been found to reduce the time to reperfusion but do not address the time delay caused by patients. In this study we sought to assess whether and to what extent alexithymia, defined as the inability to recognize and describe somatic feelings appropriately, impacts on this delay. Methods Ninety-five STEMI patients referred by the Emergency Medical System (EMS) to our hospital for primary percutaneous coronary intervention were studied. The time from symptom onset to the EMS call (time to call) as well as the time from the EMS call to the first intervention that restored patency of the culprit vessel (system delay) and the total ischemic time was calculated in patients categorized into two groups according to the Toronto Alexithymia scale (TAS-20): patients with higher alexithymia scores (≥ 61), and patients with lower scores of alexithymia (< 61). Results According to the TAS-20, we identified 27 patients as being alexithymic and 68 patients as not. The time to call and the total ischemic time were longer in alexithymic compared to non alexithymic patients (respectively, 159 min vs 35 min, and 258.5 vs 139, p = 0.001), while the system delay was similar in both groups. Conclusions Alexithymia is one trait of the patient personality which appears to have negative implications in the setting of a STEMI network by interfering with prompt seeking of care. This information could help in guiding novel strategies to motivate patients to call EMS quickly and further shorten the total ischemic time
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