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It is used to treat life-threatening complications of sickle cell disease such as stroke or acute chest crisis. [4] There are three main benefits of an exchange transfusion compared to a simple transfusion, these relate primarily to the ability to remove hemoglobin S containing red blood cells: [5]
An exchange transfusion is a blood transfusion in which the patient's blood or components of it are exchanged with (replaced by) other blood or blood products. [1] The patient's blood is removed and replaced by donated blood or blood components. This exchange transfusion can be performed manually or using a machine . [2]
Broad spectrum antibiotics to cover common infections such as Streptococcus pneumoniae and mycoplasma, pain control, and blood transfusion. Acute chest syndrome is an indication for exchange transfusion. [citation needed] Bronchodilators may be useful but have not been well studied. [4]
This process is also used for exchange transfusion in severe malaria, or in sickle cell patients with specific indications such as acute chest syndrome or stroke. Thrombocytapheresis – removal of platelets in people with symptoms from extreme elevations in platelet count such as those with essential thrombocythemia or polycythemia vera.
Sickle cell disease (SCD), also simply called sickle cell, is a group of hemoglobin-related blood disorders that are typically inherited. [2] The most common type is known as sickle cell anemia. [2] Sickle cell anemia results in an abnormality in the oxygen-carrying protein haemoglobin found in red blood cells. [2]
The price tags for the two sickle cell therapies in the U.S. are $3.1 million and $2.2 million although costs can vary by country. The process of giving the therapies is just as big a hurdle.
Exagamglogene autotemcel, sold under the brand name Casgevy, is a gene therapy used for the treatment of sickle cell disease [3] [5] and transfusion-dependent beta thalassemia. [3] It was developed by Vertex Pharmaceuticals and CRISPR Therapeutics. [9]
A red blood cell concentrate can also be tailored for exchange transfusions for neonates. During this process, the additive solution is removed and instead, plasma is added to resemble a “whole blood”. Both at intrauterine and exchange transfusion, compatibility [1] between the foetus/baby and the mother is of great importance.
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