Artificial blood vessels to revolutionize cardiac bypass surgery
Almaty. February 4. Kazakhstan Today - US scientists believe they can produce artificial blood vessels for use in heart bypass surgery, the agency reports.
Scientists say they have successfully tested artificial blood vessels grown in the laboratory, VOA News.com reports.
In coronary heart disease, the arteries, which bring oxygen to the heart muscle narrow and become blocked. It is the UK's biggest killer, BBC reported.
Every year 28,000 coronary artery bypasses are performed, where blood vessels from other parts of the body are taken and used to "bypass" the blockage.
It is not always possible to use the patient's own blood vessels and several research groups are trying to create artificial ones.
VOA News.com said in a heart bypass operation, surgeons typically remove a vein from a patient's leg and use it to replace blocked arteries that feed the muscles of the heart. But what if, instead of cutting open the patient's leg, the surgeon used an artificial blood vessel that has been sitting in a hospital refrigerator? The new research suggests that day may soon come.
The artificial blood vessels are made by coating a biodegradable, plastic mesh tube with human or animal muscle cells. The cells produce a protein structure shaped like the plastic tube, which dissolves.
Shannon Dahl is co-founder of Humacyte, the North Carolina company that developed the artificial blood vessel. She explains that the next step is washing away the original muscle cells.
"So that what we're left with - the bioengineered vein - is just the proteins that the cell secreted. This protein structure, the bioengineered vein, can be used in any human patient because the immunogenic part, the cells, have been removed," Dahl says.
The material is considered immunogenic since the protein structure won't be recognized by the recipient as foreign material.
The artificial grafts resist bursting and tearing in lab tests, but the real question is how they perform when used on an actual patient.
The research team implanted artificial vessels into a number of animals, doing heart bypass and other procedures. Alan Kypson, a surgeon at East Carolina University, did some of the implants. A year later, the blood vessels were still performing well.
"It looked very similar, almost identical to the way it looked a year prior," Kypson says. "It didn't show any evidence of dilating or enlarging or calcifying. And they were open, most importantly. They were patent, meaning there was no obstruction to blood flow in these bypasses."
According to Kypson, the artificial blood vessel would have advantages in heart bypass surgery because it doesn't require removal of a vein from a patient's leg. That means less time on the operating table, less chance of infection, and less pain for the patient.
This information may not be reproduced without reference to Kazakhstan Today. Copyright of materials of News Agency Kazakhstan Today.
relevant news
Famous Artists of France and Kazakhstan to Perform at Astana Opera
The main goal of the Musical Alliance project is the popularisation of national and world classics. Thanks to the implementation of such projects, outstanding works not only acquire fresh sound, but also attract new audiences, making it possible to introduce them to the younger generation, while maintaining a high standard of performing traditions. On such evenings, both well-known and rarely performed works acquire an interesting, vibrant life. National gems and world masterpieces can be performed by a different musical instrument or in an unexpected arrangement. It is important for us to convey the love of high art to those who have not yet been familiar with it, thereby initiating more and more people into the mysterious and wonderful world of music," the artists of the Astana Opera Orchestra shared.
This information may not be reproduced without reference to Kazakhstan Today. Copyright of materials of News Agency Kazakhstan Today.
Astana Opera Swirls a Whirlwind of Ballet Premieres
We recently attended a ballet evening where we saw the premiere performance of Ruh by the young choreographer Sultanbek Gumar. We wanted to come back again, especially since the April program features many new pieces. It seems to me that Astana Opera’s artists have a unique style and aesthetics," Maria Ricci, a viewer from Italy, notes. "Their performances are filled with passion and inner peace, making the spectacle exciting and unforgettable."
This information may not be reproduced without reference to Kazakhstan Today. Copyright of materials of News Agency Kazakhstan Today.
Earth Hour 2024 returns by providing 60 minutes of global unity around the world, in support and celebration of the planet
This information may not be reproduced without reference to Kazakhstan Today. Copyright of materials of News Agency Kazakhstan Today.
Baige finds renewed popularity in Kazakhstan
The event was attended by Minister of Tourism and Sports of the Republic of Kazakhstan Ermek Marzhykpayev, Deputy Mayor of Astana City Eset Baiken, President of the National Sports Association of Kazakhstan Islambek Salzhanov, veterans of national sports, presidents of national sports federations, athletes, heads and representatives of diplomatic missions, as well as residents and guests of the capital. Deputy Mayor of Astana, Eset Baiken, congratulated the gathering and noted that national sports competitions will be held in all districts of the capital on these holidays," "Argymaq" sports complex posted on its official
This information may not be reproduced without reference to Kazakhstan Today. Copyright of materials of News Agency Kazakhstan Today.
Musical Journey around the World with Alan Buribayev
This information may not be reproduced without reference to Kazakhstan Today. Copyright of materials of News Agency Kazakhstan Today.
Kazakhstan to hold public discussions on coat of arms update
This information may not be reproduced without reference to Kazakhstan Today. Copyright of materials of News Agency Kazakhstan Today.
Celebration of Spring and Renewal at Astana Opera
Nauryz is not only a spring holiday, but also a symbol of unity, solidarity and friendship of the multinational people of Kazakhstan," Astana Opera’s stage director Yerenbak Toikenov notes. "May these bright days bring peace and harmony to all of us, and may our country continue to delight everyone with a warm, friendly atmosphere and prosperity."
This information may not be reproduced without reference to Kazakhstan Today. Copyright of materials of News Agency Kazakhstan Today.
Debuts in the National Opera before the Korisu Holiday
This information may not be reproduced without reference to Kazakhstan Today. Copyright of materials of News Agency Kazakhstan Today.
Most viewed
28.03.2024, 07:24GCC is Interested in Further Strengthening Cooperation with Kazakhstan 28.03.2024, 10:23 5841Asian region has good potential to continue stimulating global growth and development in upcoming years - Tokayev28.03.2024, 09:28 1581Military helicopters evacuate over 100 people from flood affected areas in Kazakhstan28.03.2024, 08:41 1121Rybakina draws level with world No 1 Iga Swiatek
23.03.2024, 20:39 27626Earth Hour 2024 returns by providing 60 minutes of global unity around the world, in support and celebration of the planet23.03.2024, 19:31 23096Kassym-Jomart Tokayev has phone conversation with Vladimir Putin23.03.2024, 17:34 22651President chairs extraordinary Security Council meeting25.03.2024, 11:16 15631Olzhas Bektenov leaving note in condolence book at Russian Embassy in Astana25.03.2024, 20:19 15401Head of State sent a telegram of congratulations to the President-elect of Indonesia
04.03.2024, 18:28 94871Implementation of Artificial Intelligence in Geology: Memorandums of Understanding Signed During Kanat Sharlapayev's Visit28.02.2024, 18:03 94691Kazakhstan, Japan agree to resume direct flights29.02.2024, 13:01 90201Eight projects are planned to be launched in the manufacturing industry of the Kyzylorda region01.03.2024, 14:12 87991Kazakh diesel-electric locomotives began to be supplied to Mongolia04.03.2024, 14:47 87206President Tokayev participates in affirmation ceremony of AIFC Court Chief Justice