Mohamed S, Patel A J, Mazhar K, Osman A, Balacumaraswami L, Ridley P
Department of Cardiothoracic Surgery, Royal Stoke University Hospital, Stoke on Trent, UK.
Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham B15 2TT, UK.
J Surg Case Rep. 2022 Apr 18;2022(4):rjac137. doi: 10.1093/jscr/rjac137. eCollection 2022 Apr.
Native pulmonary valve endocarditis is a rare phenomenon as native valve endocarditis tends to typically affect the left sided heart valves. However, the right-sided heart valves can be affected in patients with a history of intravenous drug use, whereby the tricuspid valve is most commonly affected. We present two cases who were diagnosed with native pulmonary valve endocarditis in the absence of congenital heart disease. In the first case, the native pulmonary valve endocarditis was probably a derivative of compounding factors of an enlarged underlying pulmonary artery and staphylococcal bacteraemia. In the second case, a common causal organism of native valve endocarditis following dental treatment and the resultant echocardiography findings was of significant interest. In summary, native pulmonary valve endocarditis is relatively rare complication in the adult population, especially in the absence of congenital heart disease.
原发性肺动脉瓣心内膜炎是一种罕见的现象，因为原发性瓣膜心内膜炎通常倾向于累及左侧心脏瓣膜。然而，有静脉药物使用史的患者右侧心脏瓣膜可能会受到影响，其中三尖瓣最常受累。我们报告两例在无先天性心脏病情况下被诊断为原发性肺动脉瓣心内膜炎的病例。在第一例中，原发性肺动脉瓣心内膜炎可能是潜在肺动脉扩大和葡萄球菌菌血症等复合因素的结果。在第二例中，牙科治疗后原发性瓣膜心内膜炎的常见致病微生物以及由此产生的超声心动图结果值得关注。总之，原发性肺动脉瓣心内膜炎在成年人群中是相对罕见的并发症，尤其是在无先天性心脏病的情况下。
