Right ventricular dysfunction
Updates to Article Attributes
Right ventricular dysfunction usually results from either pressure overload, volume overload, or a combination.
It occur in a number of clinical scenarios, including:
- pressure overload
- cardiomyopathies:
ischemicischaemic, congenital - valvular heart disease
- arrhythmias
- sepsis
It can manifest as right heart strain.
Pathology
Sustained ventricular dilatation and hypertrophy can frequently progresses to right ventricular failure.
Radiographic features
Echocardiography
Two dimensional echocardiography is usually considered the mainstay for analysis of right ventricular function.
Features include
Right ventricular wall can be thickened (> 4 mm) (often observed in congenital heart disease) or dilated (in acquired heart disease).
The free wall can be hypokinetic; this is best appreciated from parasternal long axis projections.
CT
May have a role in assessment. Suggestive signs include:
- RVD (RV/LV ratio, >0.9) 5
Cardiac MRI
Several phenotypical pattern have been described 9.
- pressure overload
- volume overload
- volume overload plus left ventricular dysfunction: considered 2nd commonest pattern
- depressed biventricular function: considered commonest pattern
- mixed overload, as there is co-existing biventricular dysfunction (in different degrees depending on disease duration), dilatation and right ventricular hypertrophy
See also
-<li>cardiomyopathies: ischemic, congenital</li>- +<li>cardiomyopathies: ischaemic, congenital</li>
References changed:
- 10 . van der Meer RW, Pattynama PM, van Strijen MJ et-al. Right ventricular dysfunction and pulmonary obstruction index at helical CT: prediction of clinical outcome during 3-month follow-up in patients with acute pulmonary embolism. Radiology. 235 (3): 798-803. <a href="https://doi.org/10.1148/radiol.2353040593">doi:10.1148/radiol.2353040593</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/15845793">Pubmed</a> <span class="ref_v4"></span>
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