Detection and evaluation of tricuspid regurgitation using a real-time, two-dimensional, color-coded, Doppler flow imaging system: Comparison with contrast two-dimensional echocardiography and right ventriculography

doi:10.1016/0002-9149(86)90619-3

The American Journal of Cardiology

Volume 57, Issue 10, 1 April 1986, Pages 811-815

https://doi.org/10.1016/0002-9149(86)90619-3 Get rights and content

Abstract

To detect and evaluate regurgitant flow in tricuspid regurgitation (TR) with a newly developed, realtime, 2-dimensional (2-D), color-coded, Doppler flow imaging system (Doppler 2-D echo), 27 patients (18 with suspected TR and 9 normal subjects) were examined and the findings were compared with those obtained using contrast 2-D echocardiography (contrast 2-D echo) and right ventriculography. In 16 of 18 patients with suspected TR, Doppler 2-D echo easily visualized the color-coded regurgitant flow in the right atrium and estimated the severity of TR from the distance of the visible TR jet. On the basis of the QRS synchronized appearance of contrast in the inferior vena cava by the subxiphoid approach or of the negative contrast effect above the tricuspid valve just after the contrast entered the right ventricle with its subsequent back-and-forth movements across the tricuspid valve, Doppler 2-D echo was more sensitive and specific in detecting TR (100% and 100%) than contrast 2-D echo (75% and 82% in the subxiphoid view, 56% and 100% in the 4-chamber view) when the fast Fourier transformation frequency analysis was used as the standard of TR, and it was more sensitive in detecting TR (85%) than contrast 2-D echo (69% in the subxiphoid approach, 46% in the 4-chamber view) when right ventriculography was used as the standard of TR. Additionally, the severity of TR as shown by Doppler 2-D echo correlated fairly well with that shown by right ventriculography. Thus, Doppler 2-D echo is clinically useful for detecting and evaluating TR.

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Gut hormones affect cardiac function and contractility. In this study, we examined whether insulin affects the cardiac atrial natriuretic peptide (ANP) and B-type natriuretic peptide (BNP) gene expression and release of proANP-derived peptides in pigs. Anaesthetized pigs were included in an experimental study comparing the effect of hyperinsulinemia in 15 pigs submitted to two different protocols versus 11 control pigs receiving saline infusion. Phosphorylation of Akt on Thr308 was determined by western blotting with a pAkt-Thr308 antibody. The mRNA contents of ANP and BNP were determined with real-time PCR; plasma and cardiac tissue proANP was measured with an immunoluminometric assay targeted against the mid-region of the propeptide and a processing-independent assay. Insulin stimulation increased phosphorylation of Akt Thr308 in both left atrium and left ventricle of porcine hearts (p < 0.005). No change was observed in ANP and BNP mRNA contents in the right or left atrium. BNP mRNA contents in the left ventricle, however, decreased 3-fold (p = 0.02) compared to control animals, whereas the BNP mRNA content in the right ventricle as well as ANP mRNA content in the right and left ventricle did not change following hyperinsulinemia. Moreover, the peptide contents did not change in the four cardiac chambers. Finally, proANP concentrations in plasma did not change during the insulin infusion compared to the control animals. These results suggest that insulin does not have direct effect on atrial natriuretic peptide expression but may have a role in the left ventricle.
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Also excluded were patients who underwent a biatrial technique for transplantation for any reason. TR was assessed by board-certified echocardiographers with transesophageal echocardiography (TEE) intraoperatively and with transthoracic echocardiography postoperatively, according to published guidelines [8–10]. We analyzed patient data at the time of transplant (intraoperative TEE baseline TR), 30 days, 90 days, 6 months, and 1 year postoperatively.
Tricuspid valve regurgitation (TR) is a common finding immediately after cardiac transplantation. However, there is a scarcity of data regarding its implication if left untreated on long-term outcomes and the role of early surgical repair.
We retrospectively reviewed the Duke University Medical Center transplant database from January 2000 to June 2012 and identified 542 patients who underwent orthotropic heart transplantation. Patients were excluded if they underwent surgical repair for TR during the transplant or if the transplant was part of a multiorgan transplant or redo heart transplantation. TR was assessed intraoperatively after weaning from cardiopulmonary bypass. Independent variables were grade of TR and changes in TR grade during follow-up. TR grades were classified as insignificant (none or mild) versus significant (moderate or severe). Survival and need for posttransplant valve repair during follow-up were assessed.
Significant TR was detected in 114 patients (21%) after weaning from cardiopulmonary bypass, with no significant difference in preoperative recipient pulmonary vascular resistance. Significant TR was associated with increased maximum postoperative plasma creatinine (median [interquartile range], 2.2 [1.5 to 3.2] mg/dL vs 1.8 [1.4 to 2.6] mg/dL, p = 0.008), prolonged postoperative stay (median [interquartile range], 12 [9 to 21] days vs 10 [8 to 14] days; p < 0.001), and decreased adjusted survival. Significant TR regressed to insignificant in 91% of recipients by 1 year after transplant. Six recipients (1%) who had significant TR after cardiopulmonary bypass underwent delayed tricuspid valve repair for significant TR during follow-up.
Significant TR is a common finding immediately after transplant and is associated with early morbidity and reduced adjusted survival. Most significant TR resolves by 1 year after transplant. Optimal algorithms for follow-up and treatment of significant TR after heart transplantation need to be defined.
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Estimates of the prevalence and importance of significant tricuspid regurgitation (STR) related to implantable device leads are based mainly on case reports, small observational studies, or mixed samples that include defibrillators. We sought to assess whether patients with permanent pacemaker (PPM) leads have an increased risk of STR and to determine mortality associated with PPM-related TR in a large longitudinal single-center cohort. We examined the prevalence of STR (defined as moderate-severe or ≥3+) among all echocardiograms performed from 2005 to 2011 excluding those with defibrillators. We then examined mortality risk according to the prevalence of PPM and STR after adjusting for cardiac co-morbidities, left ventricular systolic/diastolic function, and pulmonary artery hypertension. We screened 93,592 echocardiograms (1,245 with PPM) in 58,556 individual patients (634 with PPM). The prevalence of STR was higher in patients after PPM placement (mean age 79 ± 3 years; 54% men) compared with those without a PPM (adjusted odds ratio 2.32; 95% confidence interval [CI] 1.54 to 3.49; p <0.0001). Among patients with a PPM lead, the presence of STR was associated with increased mortality (adjusted hazard ratio 1.40; 95% CI 1.04 to 2.11, p = 0.027, vs no STR). Compared with having neither a PPM lead nor STR, adjusted hazard ratios for death were 2.13 (95% CI 1.93 to 2.34) for STR but no PPM, 1.04 (0.89 to 1.22) for PPM without STR, and 1.55 (1.13 to 2.14) for PPM with STR. In conclusion, in a sample comprising >58,000 individual patients, PPM leads are associated with higher risk of STR after adjustment for left ventricular systolic/diastolic function and pulmonary artery hypertension; similarly to STR from other cardiac pathologies, PPM-related STR is associated with increased mortality.
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Detection and evaluation of tricuspid regurgitation using a real-time, two-dimensional, color-coded, Doppler flow imaging system: Comparison with contrast two-dimensional echocardiography and right ventriculography

Abstract

Am J Cardiol

Am J Cardiol

Am J Cardiol

Am J Cardiol

JACC

Am Heart J

Am J Cardiol

Am J Cardiol

Ultrasound cardiology: contrast studies in anatomy and function

Radiology

Identification of ultrasound echoes from the left ventricle by use of intracardiac injection of indocyanine green

Circulation

Diagnosis of functional tricuspid insufficiency by pulsed-wave Doppler ultrasound Circulation

Studies on the intracardiac blood flow with a combined use of the ultrasonic pulsed Doppler technique and two-dimensional echocardiography from a transcutaneous approach

Detection and visualization of regurgitant flow in valvular diseases by pulsed Doppler technique

Jpn Circ J