Intraoperative heparin resistance, severe tricuspid valve regurgitation
and acute right ventricular failure following large right atrial myxoma
excision in a post corona virus disease -2019 patient -- A case report
Abstract
ABSTRACT INTRODUCTION Tricuspid valve regurgitation (TR) and severe
right ventricular (RV) systolic dysfunction may appear acutely after
right atrial (RA) myxoma excision. Covid-19 infection may have a role in
production of Heparin resistance. METHODS A case of post covid-19
infected RA myxoma was operated by surgical excision develop severe TR
and acute right ventricular systolic dysfunction postoperatively for
which Tricuspid valve ring annuloplasty was performed and RV was
supported on Cardiopulmonary bypass (CPB). RESULTS RV dysfunction did
not improve leading to cardiac arrest and death. Conclusion • Excision
of RA myxoma can unmask the severe TR and severe RV systolic dysfunction
not responsive to TV ring annuloplasty. • COVID-19 infection might have
a role in production of heparin resistance. KEY WORDS: Covid-19,
tricuspid annuloplasty, intraoperative heparin resistance, RV
Dysfunction, cardiopulmonary bypass.