Article Types

Original research article

Abstract no more than 250 words, text no more than 9,000 words. No more than 8 tables and figures, no more than 80 references.

Pulmonary Circulation considers all types of original research articles, including clinical and basic research conducted in human subjects and laboratory animals and in vitro, randomised controlled trials, intervention studies, studies of screening and diagnostic tests, outcome studies, cost effectiveness analyses, case-control series, and surveys with high response rates. Article components are abstract, keywords, introduction, methods, results, discussion, acknowledgments, references, figures, and tables.

Selection and description of participants: Clearly describe your selection of the observational or experimental participants (patients or laboratory animals, including controls), including eligibility and exclusion criteria and a description of the source population.

Technical information: Identify the methods, apparatus (give the manufacturer’s name and city in parentheses), and procedures in sufficient detail to allow other workers to reproduce the results. Give references to established methods, including statistical methods (see below); provide references and brief descriptions for methods that have been published but are not well known; describe new or substantially modified methods, give reasons for using them, and evaluate their limitations. Identify precisely all drugs and chemicals used, including generic name(s), dose(s), and route(s) of administration. Reports of randomized clinical trials should present information on all major study elements, including the protocol, assignment of interventions (methods of randomization, concealment of allocation to treatment groups), and the method of masking (blinding), based on the CONSORT Statement (www.consort-statement.org).

Review article

Abstract no more than 250 words, text no more than 15,000 words. No more than 15 tables or figures, no more than 200 references.

Pulmonary Circulation publishes comprehensive reviews on topics related to the pulmonary circulation, pulmonary vascular disease, and lung injury. Review articles usually are invited by the editors, and unsolicited manuscripts will generally not be considered for publication. It is expected that these articles will be written by individuals who have done substantial work on the subject or are considered experts in the field. Components are abstract, keywords, discussion (main text), summary (including conclusions and future directions), acknowledgments, references, figures (at least 3 and up to 15 schematic diagrams, color images of representative data, flow charts, etc.), figure legends, and tables.

Leading Edge Science

This category of article serves as a forum to disseminate new and original lines of thinking in pulmonary hypertension. These articles go beyond the scope of invited reviews and should present new and exciting ideas in research and clinical practice. Some Leading Edge Science manuscripts may challenge current dogma and will be considered for publication based on the scientific merit of the argument presented. Leading Edge Science manuscripts will be subject to peer review. Most articles will be invited, but unsolicited articles are welcome. Leading Edge Science manuscripts must be authored by experts in the field under discussion, such expertise having been demonstrated by original research published by the author(s) in peer-reviewed journals. In all cases, determining whether a proposed Leading Edge Science manuscript is within scope and acceptable for publication is at the discretion of the editors. Manuscripts should include an abstract no more than 250 words, text no more than 3,000 words, no more than 3 figures, and no more than 75 references. Color figures are encouraged.

Case report

A case report may include a single case study or a case series in pulmonary vascular medicine. They should be based on an interesting observation or on an intervention in a unique clinical case.  Case reports should be no more than 1,000 words, and include no more than 1 table or figure, and no more than 10 references.

Guidelines or consensus articles and conference papers

Guidelines and conference papers are usually invited by the editors, and unsolicited manuscripts will generally not be considered for publication. It is expected that these articles will be written by individuals who have done substantial work on the subject or are considered experts in the field.  These articles should include: abstract, keywords, discussion (main text), summary (including conclusions and future directions), acknowledgments, references, figures (at least 3 and up to 15 schematic diagrams, color images of representative data, flow charts, etc.), figure legends, and tables. Abstract no more than 250 words, text no more than 15,000 words. No more than 15 tables or figures, no more than 200 references.

Research letter

Abstract of no more than 50 words. No more than 1,500 words, no more than 1 table or figure, no more than 20 references. A short clinical research paper that describes the novel observations from a small cohort of patients or a short, basic, important, and translational research paper that describes extremely novel results.

Letter to the editor

No abstract. Text no more than 350 words, no figures or tables, no more than 5 references. Letters to the editor pertain directly to an article published in the journal within the preceding 8 weeks. Authors of the original article cited in the letter will be invited to reply. Letters to the editor should be submitted via the online manuscript submission process.