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Pericarditis: case 2

Home Miscelaneous Pericarditis: case 2

Pericarditis: case 2

sep 5, 2016 | Posted by Arco Teske | Miscelaneous |

Case

The following case demonstrates a patient with recurrent episodes of pericarditis. Deformation imaging reveals a potential early sign of constriction.

A 50-year old man, known with recurrent pleuritis was sent to the outpatient clinic. The last episodes of his pleuritis were associated with pleural effusion and complaints fitting with a pericarditis. Initial echocardiographic examinations showed a moderate degree of pericardial effusion (not shown). After tapering of his pericarditis treatment (i.e. colchicine and NSAIDs), there was a recurrence of his pericarditis. Additional investigations of the underlying cause were all negative (cultures/histology/PCR of pleural effusion and testing for auto-immune disease). The most likely cause in this case was either post-viral or idiopathic.

He was sent to our institution for analysis of the cause and whether there was a risk for constrictive pericarditis. There were no signs or symptoms fitting with the latter diagnosis and the basic echocardiographic examination showed the following.

Conventional ultrasound

The first image clearly shows a large amount of pleural effusion.

When focussing on the heart, there is no significant amount of pericardial effusion. However, it can be appreciated that the pericardium is thickened at both the anterior as well as the posterior side of the heart. The LV systolic functions seems preserved. There is no septal motion suggestive of constrictive pericarditis.

Both the short axis views and the RV inflow view conform the extend of the pericardial thickening around the entire heart.


Apical views show a preserved LV systolic function. The LVEF by 3D is 56%. There seems to be the impression that the posterolateral wall is hypokinetic. The RV systolic function is moderate and there is a small amount of pericardial effusion behind the right atrium.

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Doppler interrogation of both the mitral and tricuspid valve show some variations with respect to in/expiration. However, this variation is still within normal limits of physiology, not fitting the Mayo Clinic criteria for constrictive pericarditis. Finally, the hepatic vein pulsed Wave Doppler recording only shows flow reversal after the atrial contraction (indicated by orange arrows). There is no diastolic flow reversal.

Pericarditis Doppler - case 2

Deformation imaging

The following findings were encountered by deformation imaging. Our first analysis of the 3 apical views showed a slight reduction of global longitudinal strain (GLS), in this case -16.2% despite the preserved LVEF. Segmental assessment of the LV clearly shows regional reduction of peak systolic strain values in the posterolateral region, indicated by the yellow circles

Pericarditis speckle tracking global strain - case 2

When putting focus on the 4-chamber view, the difference between the septal wall and the lateral wall become clear. First, note the thickened pericardium at the lateral wall. In the lateral wall, all three segments from base to apex show a reduction in peak systolic strain values and no clear post systolic shortening (arrow in top right graph). The deformation values and graph characteristics of the septal segments are normal.

Pericarditis speckle tracking 4 Chamber - case 2

If we now look at the difference between the epicardial deformation values and compare these to the endocardial deformation values, a very typical sign is found. At the endocardium (shown on the left and indicated by ENDO), strain values are moderately reduced at the lateral wall and normal in the septal wall. On the epicardium however (show on the right and indicated by EPI), the peak systolic strain values are severely reduced. This is very suggestive of adhesion of the myocardium and the pericardium, restricting motion. We took specific care not to include the pericardium in our region of interest (ROI).

In the two figures below, the single wall recordings of the septal wall and the lateral wall are shown. This again shows the restricted deformation at the apical and mid lateral wall.

Pericarditis strain layers - case 2 Pericarditis septum - case 2 Pericarditis lateral wall - case 2

3-layered bulls eye representation in this case also shows the increasing impact of the deformation properties due to the pericardial adhesion to the myocardium. I have indicated the abnormal region in the endocardium (light blue), which seems more pronounced in the mid myocardium (green) and severely affected in the epicardial layer

Pericarditis layers bulls eye - case 2

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Arco Teske has contributed 37 entries to our website, so far. View entries by Arco Teske.

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