TAILIEUCHUNG - Pulmonary hypertension and cardiac hypertrophy in children recipients of orthotopic living related liver transplantation

Surgical stress, liberation of cytokines associated with re-perfusion injury, and long standing use of immune suppressive medications in children recipients of orthotopic living related liver transplantation (OLRLT) pose cardiovascular risk. Reported cardiovascular adverse effects vary from left ventricular wall thickening, hypertrophic cardiomyopathy to resting ECG abnormalities, asymptomatic ST depression following increased heart rate and ventricular arrhythmias. Twenty-five consecutive children recipients of OLRLT were assessed by conventional 2-D, M-mode echocardiography and Doppler. The mean age ± SD at transplantation and at enrollment in study was ± and ± years respectively. All children were on immunosuppressive medications, with tacrolimus being constant among all. Long-term post- transplant echocardiography revealed statistically significant interventricular septal hypertrophy among all (mean thickness ± cm), (P = ) in comparison to reference range for age, 24 had pulmonary hypertension (mean mPAP ± mm Hg, P = ), and early diastolic dysfunction with a mean Tei index of ± . However cardiac function was generally preserved. Children recipients of OLRLT have cardiac structural and functional abnormalities that can be asymptomatic. Pulmonary hypertension, increased cardiac mass, de novo aortic stenosis and diastolic heart failure were among abnormalities encountered in the studied population. Echocardiography is indispensible in follow-up of children recipients of OLRLT. | Pulmonary hypertension and cardiac hypertrophy in children recipients of orthotopic living related liver transplantation

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