Clinical meaning
Marfan syndrome is an autosomal dominant connective tissue disorder caused by mutations in the FBN1 gene encoding fibrillin-1, a glycoprotein essential for elastic fiber formation. Defective fibrillin-1 leads to weakened connective tissue throughout the body, particularly affecting the cardiovascular system (aortic root dilation, mitral valve prolapse), skeletal system (tall stature, arachnodactyly, pectus deformities), and ocular system (lens subluxation). The most life-threatening complication is aortic root aneurysm and dissection due to cystic medial necrosis of the aortic wall. Regular echocardiographic monitoring is essential for early detection of aortic dilation.
Cardiovascular complications can rapidly progress to hemodynamic instability and organ failure. The RPN/LVN must monitor vital signs frequently, recognize early signs of decompensation such as changes in heart rate, blood pressure, and peripheral perfusion, and escalate concerns promptly. Electrocardiographic changes may provide early warning of cardiac compromise before clinical symptoms become apparent.
Within the RPN/LVN scope of practice, nursing care for marfan syndrome includes systematic assessment, implementation of established care protocols, accurate documentation, and timely communication with the interprofessional team. The practical nurse contributes to patient safety through ongoing monitoring, patient education reinforcement, and adherence to evidence-based practice standards. Understanding the underlying pathophysiology enables the practical nurse to anticipate potential complications and respond appropriately within their scope.