Extensive pericardial thickening without constriction

Transcription

1 clinical images PEER REVIEWED OPEN ACCESS Extensive pericardial thickening without constriction ABSTRACT Abstract is not required for Clinical Images International Journal of Case Reports and Images (IJCRI) International Journal of Case Reports and Images (IJCRI) is an international, peer reviewed, monthly, open access, online journal, publishing high-quality, articles in all areas of basic medical sciences and clinical specialties. Aim of IJCRI is to encourage the publication of new information by providing a platform for reporting of unique, unusual and rare cases which enhance understanding of disease process, its diagnosis, management and clinico-pathologic correlations. IJCRI publishes Review Articles, Case Series, Case Reports, Case in Images, Clinical Images and Letters to Editor. Website: (This page in not part of the published article.)

2 Ubaid 258 CASE clinical REPORT images Peer Reviewed OPEN ACCESS Extensive pericardial thickening without constriction CASE REPORT A 73-year-old male presented with atypical chest pain. He had no significant past medical history of note and he was otherwise fit and well and not on prescribed medications. He was an ex-smoker and had no family history of cardiovascular diseases. Physical examination was unremarkable and revealed a normal blood pressure, non-elevated jugular venous pressure, normal heart sounds and no other significant abnormal findings. Laboratory investigations showed normal blood count and normal kidney and liver function tests. In view of his presentation, age and history of smoking he underwent a coronary angiography procedure to exclude coronary artery disease. Unexpectedly, it showed a grey shadow around the heart mainly on the right side (Figure 1). Pericardial thickening and possible constrictive pericarditis was suspected, subsequently, a right heart catheterization was performed and intracardiac pressures were assessed. Intracardiac hemodynamics were entirely normal (right atrial pressure 3 mmhg, right ventricular and pulmonary artery systolic pressures 20 mmhg, mean pulmonary capillary wedge pressure 8 mmhg and left ventricular end diastolic pressure was 12 mmhg). Transthoracic echocardiography suspected the presence of pericardial thickening. Otherwise there was no evidence of other structural heart abnormalities. A computed tomography scan of the thorax confirmed it to be pericardial thickening. No particular cause for the pericardial thickening was identified (idiopathic). He remained well and is under regular twelve monthly cardiology follow-up. DISCUSSION Pericardial constriction happen when a thickened, and frequently calcified pericardium impairs cardiac filling, limiting the total cardiac volume [1, 2, 3]. The most common causes include mediastinal radiation such as for Hodgkin s lymphoma, chronic Affiliations: MBCHB MRCP UK, Cardiology Specialist Registrar, Department of Cardiology, TheRoyal Wolverhampton Hospitals NHS Trusts, Wolverhampton, West Midlands, UK. Corresponding Author: Dr. SalahaddinUbaid, MBCHB MRCP UK, ST5 CardiologyThe Royal Wolverhampton Hospitals NHS Trust, Wednesfield Road, Wolverhampton UK WV10 0QP; Ph: ; saladdinak@ yahoo.com; s.ubaid@nhs.net Received: 06 October 2014 Accepted: 21 November 2014 Published: 01 April 2015 Figure 1: A coronary angiogram in left anterior oblique view during cardiac catheterization showing extensive pericardial thickening. Arrows pointing to the pericardial thickening. Cardiac hemodynamics were completely normal. The right coronary artery is also shown.

3 idiopathic pericarditis, post-cardiac surgery and tuberculous pericarditis [1, 4 6]. These conditions tend to cause chronic pericardial inflammation causing pericardial scarring with thickening, fibrosis, and calcification [3]. The pathophysiological hallmark of pericardial constriction is equalization of the end-diastolic pressures in all four cardiac chambers; as a result systemic congestion is much more marked than pulmonary congestion. Typical presentations are due to elevated systemic venous pressures and low cardiac output [5]. The increased systemic venous pressure lead to marked jugular venous distension, hepatic congestion, ascites, and peripheral oedema, while the lungs remain clear. Low cardiac output causes exercise intolerance that could progress to cardiac cachexia and muscle wasting. Transthoracic echocardiography is an essential diagnostic test in patients being evaluated for constrictive pericarditis. Computed tomography scan of the heart is useful in the diagnosis of constrictive pericarditis and can provide additional data to guide perioperative management decisions. Gated cardiac magnetic resonance imaging provides direct visualization of the normal pericardium, which is composed of fibrous tissue and has a low MRI signal intensity [7]. CMR is advocated by some as the diagnostic procedure of choice for the detection of certain pericardial diseases, including constrictive pericarditis [8 10]. Characteristic CMR features in patients with constrictive pericarditis include increased pericardial thickening and dilatation of the inferior vena cava, an indirect sign of impaired right ventricular diastolic filling. Pericardiectomy is the only definitive treatment option for patients with chronic symptomatic constrictive pericarditis. Most patients with pericardial constriction have a thickened pericardium (>2 mm) [1, 3, 11]. It is important to recognize, however, that pericardial constriction can be present without pericardial calcium and, in some cases, even without pericardial thickening. In a series of 143 patients from the Mayo Clinic with surgically proven pericardial constriction, 26 (18%) had a normal pericardial thickness (<2 mm) [12]. So it is possible to have constrictive pericarditis without pericardial thickening, but it is not common to have pericardial thickening without constriction. Our case demonstrates that in spite of extensive pericardial thickening, our patient was asymptomatic with no hemodynamic evidence of constriction during cardiac catheterization which is an unusual occurrence CONCLUSION Not all patients with pericardial constriction have pericardial thickening and not all patients with pericardial thickening have pericardial constriction. How to cite this article Ubaid 259 Ubaid S. Extensive pericardial thickening without constriction. Int J Case Rep Images 2015;6(4): doi: /ijcri cl ********* Author Contributions Substantial contributions to conception and design, Acquisition of data, Analysis and interpretation of data, Drafting the article, Revising it critically for important intellectual content, Final approval of the version to be published Guarantor The corresponding author is the guarantor of submission. Conflict of Interest Authors declare no conflict of interest. Copyright This article is distributed under the terms of Creative Commons Attribution License which permits unrestricted use, distribution and reproduction in any medium provided the original author(s) and original publisher are properly credited. Please see the copyright policy on the journal website for more information. REFERENCES 1. Maisch B, Seferovic PM, Ristic AD, et al. Guidelines on the diagnosis and management of pericardial diseases executive summary; The Task force on the diagnosis and management of pericardial diseases of the European society of cardiology. Eur Heart J 2004 Apr;25(7): Shabetai R, Fowler NO, Guntheroth WG. The hemodynamics of cardiac tamponade and constrictive pericarditis. Am J Cardiol 1970 Nov;26(5): Oh KY, Shimizu M, Edwards WD, Tazelaar HD, Danielson GK. Surgical pathology of the parietal pericardium: A study of 344 cases ( ). Cardiovasc Pathol 2001 Jul-Aug;10(4): Bertog SC, Thambidorai SK, Parakh K, et al. Constrictive pericarditis: Etiology and cause-specific survival after pericardiectomy. J Am Coll Cardiol 2004 Apr 21;43(8): Ling LH, Oh JK, Schaff HV, et al. Constrictive pericarditis in the modern era: Evolving clinical spectrum and impact on outcome after pericardiectomy. Circulation 1999 Sep 28;100(13):

4 6. Ling LH, Oh JK, Breen JF, et al. Calcific constrictive pericarditis: Is it still with us? Ann Intern Med 2000 Mar 21;132(6): Sechtem U, Tscholakoff D, Higgins CB. MRI of the normal pericardium. AJR Am J Roentgenol 1986 Aug;147(2): Breen JF. Imaging of the pericardium. J Thorac Imaging 2001 Jan;16(1): Kojima S, Yamada N, Goto Y. Diagnosis of constrictive pericarditis by tagged cine magnetic resonance imaging. N Engl J Med 1999 Jul 29;341(5): Ubaid Masui T, Finck S, Higgins CB. Constrictive pericarditis and restrictive cardiomyopathy: Evaluation with MR imaging. Radiology 1992 Feb;182(2): Pohost GM, Hung L, Doyle M. Clinical use of cardiovascular magnetic resonance. Circulation 2003 Aug 12;108(6): Talreja DR, Edwards WD, Danielson GK, et al. Constrictive pericarditis in 26 patients with histologically normal pericardial thickness. Circulation 2003 Oct 14;108(15): Access full text article on other devices Access PDF of article on other devices

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