Work

Optimum anastomosis angle of end-to-side microsurgical anastomosis for preventing future shear-related risk of thrombosis by computational modeling

Year: 2024

Type: article

Abstract: End-to-side (ETS) microsurgical anastomosis is a powerful technique in microsurgery. It can overcome vessel’s diameter discrepancy and preserve the distal blood flow. Optimal angle of the ETS anastomosis has been debated and studied, and is currently limited to animal models. Computational model using Finite Element Analysis (FEA) was used to simulate the models with 45 (model 45 ), 90 (model 90 ), and 135 (model 135 ) ETS anastomosis angles. Flow dynamics including flow velocity and wall shear rate were studied and compared. Maximum flow velocity ranged from the highest to the lowest in model 135 , model 90 , and model 45 , respectively. The velocity in model135 showed fluctuation flow. The maximum wall shear rate and distribution were highest in model 45 and lowest in model 90 . ETS anastomosis angle of 90 degrees provided the most favourable flow dynamics to prevent shear related thrombosis in comparison to ETS anastomosis at 45 and 135 degrees.

Source: Scientific Reports

DOI: 10.1038/s41598-024-77390-x

Authors: Patcharaporn Wongchadakul, Apram Jyot, Kongkrit Chaiyasate, Suphalerk Lohasammakul

Institutions: Chulabhorn Royal Academy, Beaumont Hospital, Royal Oak, Siriraj Hospital, Mahidol University

Language: English

Topic: Reconstructive Surgery and Microvascular Techniques

Subfield: Surgery

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $2,590