Right heart thrombus in a patient with acute pulmonary embolism – a practice in hide-and-seek with guidelines

  • Dušan Ružičić General Hospital Valjevo, Department of Invasive Cardiology, Valjevo, Serbia
  • Mira Vuković General Hospital Valjevo, Department of Quality Assurance, Valjevo, Serbia
Keywords: computed tomography angiography, diagnosis, echocardiography, heart ventricles, multidetector computed tomography, pulmonary embolism, thrombolytic therapy, treatment outcome

Abstract


Introduction. Right heart thrombus (RHT) is a relatively rare phenomenon found in 4% of patients with acute pulmonary embolism (PE), and some reports show that the presence of RHT is associated with poor outcomes. The optimal treatment of patients with PE and RHT is still controversial, with no clear consensus. Case report. A 38-year-old woman with repeated chest pain and worsening dyspnea was admitted to the hospital. The echocardiographical exam showed a large thrombus floating in the right atrium, protruding through the tricuspid valve into the right ventricle. Massive bilateral pulmonary embolism was confirmed by computed tomography pulmonary angiogram. Bearing these findings in mind and due to the clinical and hemodynamic instability of the patient, thrombolytic therapy was immediately initiated (alteplase), which resulted in excellent clinical outcomes with no adverse events at follow-up. Conclusion. Treating patients with PE and RHT is very difficult. While waiting for the results of some future randomized clinical trials on this topic, the treatment of these patients should be based on current guidelines while also considering the patient’s hemodynamic stability.

References

1.      Horlander KT, Mannino DM, Leeper KV. Pulmonary embolism mortality in the United States, 1979-1998: an analysis using multiple-cause mortality data. Arch Intern Med 2003; 163(14): 1711‒7.

2.      Jiménez D, de Miguel-Díez J, Guijarro R, Trujillo-Santos J, Otero R, Barba R, et al. RIETE Investigators. Trends in the Management and Outcomes of Acute Pulmonary Embolism: Analysis From the RIETE Registry. J Am Coll Cardiol 2016; 67(2): 162‒70.

3.      Barrios D, Rosa-Salazar V, Morillo R, Nieto R, Fernández S, Zamorano JL, et al. Prognostic Significance of Right Heart Thrombi in Patients With Acute Symptomatic Pulmonary Embolism: Systematic Review and Meta-analysis. Chest 2017; 151(2): 409‒16.

4.      Torbicki A, Galié N, Covezzoli A, Rossi E, De Rosa M, Goldhaber SZ. ICOPER Study Group. Right heart thrombi in pulmonary embolism: results from the International Cooperative Pulmonary Embolism Registry. J Am Coll Cardiol 2003; 41(12): 2245‒51.

5.      Koć M, Kostrubiec M, Elikowski W, Meneveau N, Lankeit M, Grifoni S, et al. for the RiHTER Investigators. Outcome of patients with right heart thrombi: the Right Heart Thrombi European Registry. Eur Respir J 2016; 47(3): 869‒75.

6.      Džudović B, Obradović S, Rusović S, Gligić B, Rafajlovski S, Romanović R, et al. Therapeutic approach in patients with a floating thrombus in the right heart. J Emerg Med 2013; 44(2): e199‒205.

7.      Casazza F, Becattini C, Guglielmelli E, Floriani I, Morrone V, Caponi C, et al. Prognostic significance of free-floating right heart thromboemboli in acute pulmonary embolism: results from the Italian Pulmonary Embolism Registry. Thromb Haemost 2014; 111(1): 53‒7.

8.      Português J, Calvo L, Oliveira M, Pereira VH, Guardado J, Lourenço MR, et al. Pulmonary Embolism and Intracardiac Type A Thrombus with an Unexpected Outcome. Case Rep Cardiol 2017; 2017: 9092576.

9.      Barrios D, Rosa-Salazar V, Jiménez D, Morillo R, Muriel A, Del Toro J, et al. RIETE investigators. Right heart thrombi in pulmonary embolism. Eur Respir J 2016; 48(5): 1377‒85.

10.   Rose PS, Punjabi NM, Pearse DB. Treatment of right heart thromboemboli. Chest 2002; 121(3): 806‒14.

11.   Konstantinides SV. 2014 ESC Guidelines on the diagnosis and management of acute pulmonary embolism. Eur Heart J 2014; 35(45): 3145‒6.

12.   Pierre-Justin G, Pierard LA. Management of mobile right heart thrombi: a prospective series. Int J Cardiol 2005; 99(3): 381‒8.

13.   Barrios D, Chavant J, Jiménez D, Bertoletti L, Rosa-Salazar V, Muriel A, et al. Registro Informatizado de la Enfermedad TromboEmbólica Investigators. Treatment of Right Heart Thrombi Associated with Acute Pulmonary Embolism. Am J Med 2017; 130(5): 588‒95.

Published
2023/05/31
Section
Case report