Doug Helmersen
Calgary, AB, Canada
Last Updated: 09/26/2026
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Found 12 publications
Effect of Community Size and Commute Time on Severity of Pulmonary Arterial Hypertension at Diagnosis and Follow-up in Patients Across 3 Sites.
Journal: CJC open
Published: February 21, 2026
Transitioning From Parenteral Prostanoids to Oral Selexipag in Pulmonary Arterial Hypertension: A Multicenter Retrospective Cohort Study.
Journal: Pulmonary circulation
Published: August 24, 2025
Asbestosis Requiring Lung Transplantation in a Retired Hairdresser: An Occupational Exposure to Comb Through.
Journal: Respirology case reports
Published: June 17, 2025
Association Between the Pulmonary Artery Pulsatility Index and Prognosis in Pulmonary Arterial Hypertension: A Multicentre Study.
Journal: CJC open
Published: January 06, 2023
Ventricular-arterial decoupling is associated with in-hospital adverse events in normotensive pulmonary embolism.
Journal: The international journal of cardiovascular imaging
Published: April 27, 2022
Upfront riociguat and ambrisentan combination therapy for newly diagnosed pulmonary arterial hypertension: A prospective open-label trial.
Journal: The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation
Published: September 20, 2021
Mortality trends in pulmonary arterial hypertension in Canada: a temporal analysis of survival per ESC/ERS guideline era.
Journal: The European respiratory journal
Published: June 02, 2021
Rapid prediction of adverse outcomes for acute normotensive pulmonary embolism: derivation of the Calgary Acute Pulmonary Embolism score.
Journal: ERJ open research
Published: November 24, 2020
Characterization of Right Ventricular Deformation in Pulmonary Arterial Hypertension Using Three-Dimensional Principal Strain Analysis.
Journal: Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography
Published: June 05, 2018
Pulmonary arterial hypertension secondary to adult-onset Still's disease: Response to cyclosporine and sildenafil over 15 years of follow-up.
Journal: Respiratory medicine case reports
Published: May 12, 2016
Epidemic Pseudomonas aeruginosa infection in patients with cystic fibrosis is not a risk factor for poor clinical Outcomes following lung transplantation.
Journal: Journal of cystic fibrosis : official journal of the European Cystic Fibrosis Society
Published: October 11, 2015
Showing 1-12 of 12
Last Updated: 09/26/2026