Saturday, October 15, 2022

Phenomena in Frozen Valves from A Valve Bank

 

Abstract

Studies were conducted on valves from a valve bank, frozen for up to 19 years. Obtained results were compared to studies of fresh, non-frozen valves. Stereomicroscopy, polarized light microscopy, scanning microscopy and X-ray diffractometry were used in the studies. It was determined that the structures of valve leaflets after prolonged freezing time (4-5 years) do not return to their initial, pre-frozen state. Changes in the structures after freezing time of over 5 years may, when the valves are implemented, favor faster damage processes, including calcification. Hence it appears beneficial to only implant valves that have been frozen for less than 5 years.

Keywords:Heart Valves; Freezing

Read more about this article:

https://lupinepublishers.com/surgery-case-studies-journal/fulltext/phenomena-in-frozen-valves-from-a-valve-bank.ID.000150.php

Read more Lupine Publishers Google Scholar Articles:

https://scholar.google.com/citations?view_op=view_citation&hl=en&user=77gTAnQAAAAJ&cstart=20&pagesize=80&citation_for_view=77gTAnQAAAAJ:5qfkUJPXOUwC

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