Your abstract title should clearly indicate the main focus of your case. Include key terms, keep it concise, and avoid jargon. Remember, characters in your title are included in the size limit.

Author information does not count towards the character limit.

The Submitting Author is automatically listed as first and presenting author. You may change this after adding additional authors. It is the submitting author’s responsibility to notify all named authors that they will be listed as co-authors on the abstract.

The Presenting Author will be the only one to receive the acceptance or rejection notification on 13 December. It is their responsibility to inform all co-authors of the submission’s outcome. If the abstract is accepted, the Presenting Author is responsible for submitting the final results and conclusions by Monday, 17 March, 2025 for review by the Executive Program Committee. These results will be kept confidential until presentation. Final decisions on presentation format and session placement will be sent shortly thereafter The Presenting Author must register for and attend the Annual Meeting in person.

Co-Authors included should be those who contribute significantly to the intellectual content of the abstract (maximum 50 authors). When adding authors, include the Full Name, Degree, Affiliation, and Email Address of each author. You can use the ISHLT database search tool on the submission site to find and add your authors. Authors will be listed in the author block in the order they are added but can be rearranged after adding.

Your abstract can be submitted only once. Submitting the same abstract to different categories or splitting one study into multiple abstracts is not allowed. If the abstracts are too similar to be considered separate studies or if the same abstract is submitted to multiple categories, all versions may be rejected. Late-Breaking Submission Categories are separated into four core therapies, and you may choose only one category:

• HEART (Advanced Heart Failure & Transplantation)
• LUNG (Advanced Lung Failure & Transplantation)
• MCS (Mechanical Circulatory Support)
• PVD (Pulmonary Vascular Disease (PAH & CTEPH)

You will be asked to select the Primary Practice Area most relevant to your research abstract (which might not be your primary practice area), the Secondary Practice Area, and any additional practice areas applicable from the following list:

• Anesthesiology and Critical Care
• Cardiology
• Cardiothoracic Surgery
• Infectious Diseases
• Nursing and Allied Health
• Pathology
• Pediatrics
• Pharmacy
• Pulmonology
• Research and Immunology

Several questions will be asked regarding funding:

• Is the presenting author an employee or owner of a company whose primary business is producing, marketing, selling, re-selling, or distributing healthcare products used by or on patients? (Yes/No). If yes, identify the healthcare company.
• Is this abstract being funded (in part or in whole) by a healthcare company? (Yes/No). If yes, identify the healthcare company.

In this step, the body of the late-breaking abstract (Purpose, Methods, and Endpoints) and any tables or images are entered. Follow the links on the site to enter each element. Remember, a table or image removes 320 characters from the limit.

• Purpose: Clearly states the main objective of the study, highlighting the research question or hypothesis being addressed.
• Methods: Outlines the study design, population or sample, procedures used to collect and analyze data, and any statistical techniques applied.
• Endpoints: Details the primary and secondary outcomes measured in the study, specifying the main variables of interest, how they were measured, and the time points at which measurements were taken.

A $25 (USD) processing fee must accompany each abstract. ISHLT accepts payment only in the form of MasterCard, Visa and American Express. Purchase orders, checks, and electronic bank transfers will not be accepted. This fee is non-refundable and used to cover the cost of submission and processing.

Use this opportunity to proofread your submission carefully. You can make corrections to any portion, including authors, up until the deadline. Edits to a submission are not permitted after the deadline.

If all submission steps are completed, the page will indicate the submission is COMPLETE and no further action is required. If one or more submission steps are not completed, the page will indicate the submission is INCOMPLETE and ask you to complete the required steps before the submission can be marked COMPLETE.