Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Improved right ventricular index of myocardial performance in the assessment of right ventricular function after coronary artery bypass grafting
Danderyd Hosp, Unit Cardiol, Dept Clin Sci, Karolinska Inst, Stockholm, Sweden.;Capio St Gorans Hosp, Dept Clin Physiol, S-11281 Stockholm, Sweden..
KTH, School of Technology and Health (STH), Medical Engineering.
Soder Sjukhuset, Sect Cardiol, Dept Clin Sci, Karolinska Inst, Stockholm, Sweden..
Danderyd Hosp, Unit Cardiol, Dept Clin Sci, Karolinska Inst, Stockholm, Sweden..
Show others and affiliations
2018 (English)In: Interactive Cardiovascular and Thoracic Surgery, ISSN 1569-9293, E-ISSN 1569-9285, Vol. 26, no 5, p. 798-804Article in journal (Refereed) Published
Abstract [en]

OBJECTIVES: Decreased right ventricular (RV) longitudinal function following coronary artery bypass grafting (CABG), as assessed by tricuspid annular systolic excursion (TAPSE) and RV peak systolic velocity (RVS') is a known condition. We aimed to explore the feasibility of the right ventricular index of myocardial performance (RIMP) in the assessment of RV function after CABG at rest and during peak dobutamine stress echocardiography (DSE). METHODS: Forty-two patients indicated for CABG were included in this study. Coronary angiography, DSE and exercise bicycle test were performed within 6 weeks before and 3 months after CABG. The RIMP, RVS' and TAPSE at the lateral tricuspid annulus were also assessed. The results were presented as mean +/- standard deviation. RESULTS: The RIMP improved after CABG both at rest (0.45 +/- 0.11 before vs 0.38 +/- 0.08 after CABG, P= 0.013) and during DSE (0.75 +/- 0.23 vs 0.49 +/- 0.14, P < 0.001). TAPSE declined significantly when comparing the values from before CABG to after CABG both at rest (23.9 +/- 4.46 vs 14.6 +/- 3.67, P < 0.001) and during DSE (20.9 +/- 4.16 vs 11.9 +/- 3.60, P < 0.001). RVS' also decreased after CABG both at rest (11.9 +/- 2.40 vs 8.5 +/- 1.93, P < 0.001) and during DSE (15.6 +/- 4.30 vs 10.5 +/- 3.21, P <0.001). On the other hand, exercise capacity improved after CABG compared with baseline (128.4 +/- 40.12 W vs 142.1 +/- 46.73 W, P = 0.014). CONCLUSIONS: RIMP improved after CABG both at rest and during DSE. The reduction in TAPSE and RVS' after CABG indicate reduced regional mechanical RV function along the long axis rather than reduced global RV function.

Place, publisher, year, edition, pages
Oxford University Press, 2018. Vol. 26, no 5, p. 798-804
Keywords [en]
Right ventricular index of myocardial performance, Right ventricle, Coronary artery bypass grafting, Tricuspid annular systolic excursion, Right ventricular peak systolic velocity
National Category
Cardiac and Cardiovascular Systems
Identifiers
URN: urn:nbn:se:kth:diva-229026DOI: 10.1093/icvts/ivx420ISI: 000432288000012PubMedID: 29304238Scopus ID: 2-s2.0-85047177882OAI: oai:DiVA.org:kth-229026DiVA, id: diva2:1211559
Note

QC 20180531

Available from: 2018-05-31 Created: 2018-05-31 Last updated: 2018-05-31Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textPubMedScopus

Search in DiVA

By author/editor
Brodin, Lars-Åke
By organisation
Medical Engineering
In the same journal
Interactive Cardiovascular and Thoracic Surgery
Cardiac and Cardiovascular Systems

Search outside of DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 21 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf