Complications of cerebrovascular accident
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Complications of Cerebrovascular Accident (CVA)
Cerebrovascular accidents (CVAs), commonly known as strokes, can lead to a range of severe complications. These complications vary depending on the underlying conditions and the circumstances surrounding the stroke. This article synthesizes findings from multiple studies to provide a comprehensive overview of the complications associated with CVAs.
Hemiplegia and Neurological Deficits
Hemiplegia in Congenital Heart Disease
In patients with cyanotic congenital heart disease, hemiplegia is a common complication of CVA. This condition often arises due to acute febrile illness, cardiac catheterization, or hyperpneic spells. In a study of 29 cases, 20 patients experienced residual hemiplegia, and some developed seizure disorders or mental retardation 1.
Neurological Complications in Sickle Cell Disease
Patients with sickle cell disease are at high risk for both infarctive and hemorrhagic strokes. Infarctive strokes are more common in children and older adults, while hemorrhagic strokes peak in young adults aged 20-29. These strokes can lead to significant neurological deficits and have a high mortality rate, particularly in the case of hemorrhagic strokes 2.
Post-Interventional Complications
CVA After Percutaneous Coronary Interventions (PCI)
Cerebrovascular accidents following PCI are rare but severe. Patients with diabetes, hypertension, previous CVA, and reduced creatinine clearance are at higher risk. These strokes are associated with high rates of in-hospital death and acute renal failure, often necessitating dialysis 34.
CVA After Transcatheter Aortic Valve Implantation (TAVI)
In high-risk elderly patients undergoing TAVI, CVAs occur predominantly within the first day post-procedure. These events significantly increase the risk of all-cause and cardiovascular mortality within 30 days. Repeated device implantation attempts and chronic pulmonary disease are notable risk factors 5.
Infections and CVA
Blood Stream Infections in LVAD Patients
Patients with left ventricular assist devices (LVADs) who develop bloodstream infections (BSIs) are significantly more likely to experience CVAs. These infections can lead to both ischemic and hemorrhagic strokes, with a higher incidence of hemorrhagic strokes 67.
Special Populations
CVA in Diabetic Ketoacidosis
In pediatric patients with diabetic ketoacidosis (DKA), CVA is a rare but serious complication. The risk is heightened due to coagulation abnormalities and cerebral edema, which can be easily confused with or lead to CVA 8.
Elderly Patients
For elderly patients, a CVA can exacerbate existing fears and lead to significant psychological and physical challenges. The abrupt onset of a stroke can result in concerns about loss of control, disfigurement, and lengthy treatments, which can be particularly distressing for this age group 9.
Postoperative CVA
General Surgery
In non-cardiac, non-carotid artery surgeries, postoperative strokes are rare but tend to occur in older patients with pre-existing atherosclerosis. These strokes often happen late in the postoperative period and are more frequent after acute operations. Rapid atrial fibrillation and postoperative dehydration are common precipitating factors 10.
Conclusion
Cerebrovascular accidents can lead to a wide range of complications, from hemiplegia and neurological deficits to severe outcomes following surgical and interventional procedures. Understanding the risk factors and early identification of complications can help in managing and potentially mitigating these adverse outcomes.
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