scholarly journals Expression of miR-93-5p as a Potential Predictor of the Severity of Chronic Thromboembolic Pulmonary Hypertension

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Juanni Gong ◽  
Yuanhua Yang ◽  
Jianfeng Wang ◽  
Yidan Li ◽  
Xiaojuan Guo ◽  
...  
Keyword(s):  
Pulmonary Hypertension ◽  
Mirna Expression ◽  
Reference Group ◽  
Chronic Thromboembolic Pulmonary Hypertension ◽  
Right Heart Catheterization ◽  
Heart Catheterization ◽  
Clinical Parameters ◽  
Potential Predictor ◽  
Expression Levels ◽  
Thromboembolic Pulmonary Hypertension

Background. MicroRNAs (miRNAs) play an important role in the pathogenesis of chronic thromboembolic pulmonary hypertension (CTEPH). However, the potential correlation between miRNA expression and the severity of CTEPH remains unclear. Our previous study indicated that miRNAs hsa-let-7b-3p, hsa-miR-17-5p, hsa-miR-106b-5p, hsa-miR-3202, hsa-miR-665, and hsa-miR-93-5p are closely involved in CTEPH. This study assessed the associations between the expression levels of these miRNAs and clinical parameters in CTEPH patients. Methods. A total of eight CTEPH patients and eight healthy adults as a reference group were included, and clinical data including total protein (TP), albumin (Alb), lactate dehydrogenase (LDH), hydroxybutyrate dehydrogenase (HBDH), uric acid (UA), and N-terminal pro-B-type natriuretic peptide (NT-proBNP) levels were collected. Right heart catheterization was conducted to obtain hemodynamic data including cardiac index (CI). The expression levels of let-7b-3p, miR-17-5p, miR-106b-5p, miR-3202, miR-665, and miR-93-5p were measured by quantitative real-time PCR (qPCR). Correlation analysis was applied to estimate the associations between miRNA expression levels and clinical parameters in CTEPH patients. Results. Serum TP and Alb levels were decreased, while LDH, HBDH, and UA levels were increased in CTEPH patients compared with the reference group ( P < 0.05 ). miR-3202 and miR-665 were upregulated, whereas let-7b-3p, miR-17-5p, miR-106b-5p, and miR-93-5p were downregulated in CTEPH patients relative to the reference group ( P < 0.05 ). miR-93-5p expression was positively correlated with NT-proBNP level and negatively correlated with CI ( P < 0.05 ). Moreover, let-7b-3p tended to be positively correlated with mean pulmonary arterial pressure. Conclusions. miR-93-5p expression was associated with the severity of CTEPH and could act as a potential predictor of high-risk CTEPH.

scholarly journals Successful right heart remodelling and subsequent pregnancy in a patient with chronic thromboembolic pulmonary hypertension undergoing balloon pulmonary angioplasty: a case report

2019 ◽  
Vol 3 (2) ◽  
Author(s):  
Nobutaka Ikeda ◽  
Masaru Hatano ◽  
Takeshi Nagamatsu ◽  
Masato Nakamura
Keyword(s):  
Pulmonary Hypertension ◽  
Pulmonary Arteries ◽  
Chronic Thromboembolic Pulmonary Hypertension ◽  
Right Heart Catheterization ◽  
Subsequent Pregnancy ◽  
Heart Catheterization ◽  
Right Heart ◽  
Promising Alternative ◽  
Balloon Pulmonary Angioplasty ◽  
Thromboembolic Pulmonary Hypertension

AbstractBackgroundTo date, the management of pregnancy in patients with chronic thromboembolic pulmonary hypertension (CTEPH) and the associated risk of maternal mortality have not been established. Although balloon pulmonary angioplasty (BPA) in patients with CTEPH is still an emerging procedure, this approach represents a promising alternative to pulmonary endarterectomy (PEA), especially in patients with inoperable CTEPH.Case summaryWe present a case of a 34-year-old woman with CTEPH who desired to have a child. Right heart catheterization showed a mean pulmonary artery pressure of 54 mmHg. Since the lesions were observed in the distal part of subsegmental pulmonary arteries, there was no indication for PEA. After improvement in her haemodynamic status by BPA, she became pregnant. At 40 weeks of gestation, a normal baby was delivered vaginally. Both mother and baby have made satisfactory progress.DiscussionIn cases in which the haemodynamic status is improved by effective BPA, pregnancy and childbirth may be possible, even in patients with CTEPH.

scholarly journals Exercise right heart catheterization before and after balloon pulmonary angioplasty in inoperable patients with chronic thromboembolic pulmonary hypertension

2020 ◽  
Vol 10 (3) ◽  
pp. 204589402091788
Author(s):  
Christoph B. Wiedenroth, MD ◽  
Andreas J. Rieth, MD ◽  
Steffen Kriechbaum, MD ◽  
H.-Ardeschir Ghofrani, MD ◽  
Andreas Breithecker, MD ◽  
...  
Keyword(s):  
Pulmonary Hypertension ◽  
Exercise Capacity ◽  
Chronic Thromboembolic Pulmonary Hypertension ◽  
Right Heart Catheterization ◽  
Walking Distance ◽  
Heart Catheterization ◽  
Right Heart ◽  
Pulmonary Hemodynamics ◽  
Balloon Pulmonary Angioplasty ◽  
Thromboembolic Pulmonary Hypertension

Background * These authors contributed equally as last authors. Balloon pulmonary angioplasty is an evolving, interventional treatment option for inoperable patients with chronic thromboembolic pulmonary hypertension (CTEPH). Pulmonary hypertension at rest as well as exercise capacity is considered to be relevant outcome parameters. The aim of the present study was to determine whether measurement of pulmonary hemodynamics during exercise before and six months after balloon pulmonary angioplasty have an added value. Methods From March 2014 to July 2018, 172 consecutive patients underwent balloon pulmonary angioplasty. Of these, 64 consecutive patients with inoperable CTEPH underwent a comprehensive diagnostic workup that included right heart catheterization at rest and during exercise before balloon pulmonary angioplasty treatments and six months after the last intervention. Results Improvements in pulmonary hemodynamics at rest and during exercise, in quality of life, and in exercise capacity were observed six months after balloon pulmonary angioplasty: WHO functional class improved in 78% of patients. The mean pulmonary arterial pressure (mPAP) at rest was reduced from 41 ± 9 to 31 ± 9 mmHg (p < 0.0001). The mPAP/cardiac output slope decreased after balloon pulmonary angioplasty (11.2 ± 25.6 WU to 7.7 ± 4.1 WU; p < 0.0001), and correlated with N-terminal fragment of pro-brain natriuretic peptide (p = 0.035) and 6-minute walking distance (p = 0.01). Conclusions Exercise right heart catheterization provides valuable information on the changes of pulmonary hemodynamics after balloon pulmonary angioplasty in inoperable CTEPH patients that are not obtainable by measuring resting hemodynamics.

Prevalence of Coronary Artery to Pulmonary Artery Collaterals in Patients with Chronic Thromboembolic Pulmonary Hypertension: Retrospective Analysis from a Single Center

2016 ◽  
Vol 66 (02) ◽  
pp. 180-186 ◽  
Author(s):  
Bulent Mutlu ◽  
Ashok Paudel ◽  
Cigdem Ileri ◽  
Halil Atas ◽  
Bedrettin Yildizeli ◽  
...  
Keyword(s):  
Pulmonary Hypertension ◽  
Coronary Artery ◽  
Pulmonary Artery ◽  
Chronic Thromboembolic Pulmonary Hypertension ◽  
Right Heart Catheterization ◽  
Heart Catheterization ◽  
Thromboembolic Pulmonary Hypertension ◽  
Study Population ◽  
Coronary Angiograms

Background Our aim was to determine the prevalence of coronary artery − pulmonary artery collaterals in patients with chronic thromboembolic pulmonary hypertension (CTEPH) by retrospectively evaluating coronary angiograms of eligible consecutive patients who had undergone pulmonary endarterectomy (PEA). We also aimed to evaluate predictors and potential clinical associates of these collaterals. Methods Coronary angiograms of 83 consecutive CTEPH patients who had undergone coronary angiography before PEA operation between January 1, 2012 and June 1, 2015 were retrospectively evaluated for presence of coronary artery − pulmonary artery collaterals. Medical records of all patients were also retrospectively reviewed for demographic information, cardiovascular risk factors, preoperative right heart catheterization reports, operation reports, and follow-up data. Data of CTEPH patients with coronary artery − pulmonary artery collaterals were compared with data of CTEPH patients without such collaterals. Results There were 15 patients (18.1%) with definite and 4 patients (4.8%) with probable coronary artery − pulmonary artery collaterals among the study population. CTEPH patients with collaterals had higher preoperative pulmonary artery pressures, higher pulmonary vascular resistance (PVR) and lower cardiac index values compared with CTEPH patients without collaterals. However, CTEPH patients with collaterals displayed higher amount of reduction in PVR after PEA compared with patients without collaterals. There were no significant differences between groups regarding incidence of reperfusion injury or mortality. Conclusion Prevalence of coronary artery − pulmonary artery collaterals seems to be increased in our CTEPH patients compared with the general population. The presence of coronary artery − pulmonary artery collaterals is often combined with proximal disease with the possibility of increased reduction of PVR after PEA operation.

scholarly journals Diagnosis and Preoperative Evaluation of Chronic Thromboembolic Pulmonary Hypertension

2014 ◽  
Vol 12 (4) ◽  
pp. 179-185
Author(s):  
Coen van Kan ◽  
Paul Bresser
Keyword(s):  
Pulmonary Hypertension ◽  
Chronic Thromboembolic Pulmonary Hypertension ◽  
Right Heart Catheterization ◽  
Assessment Tools ◽  
Heart Catheterization ◽  
Right Heart ◽  
Pulmonary Hemodynamics ◽  
Term Survival ◽  
Preoperative Selection ◽  
Thromboembolic Pulmonary Hypertension

Chronic thromboembolic pulmonary hypertension (CTEPH) can be defined as precapillary pulmonary hypertension (PH) as assessed by right heart catheterization, and results from incomplete resolution of the vascular obstruction associated with acute pulmonary embolism (PE). Pulmonary thromboendarterectomy (PTE) is the therapy of choice for CTEPH patients with surgically accessible thrombi. Although associated with potential risks, PTE has been found to improve, and in many cases normalize pulmonary hemodynamics, functional status, and long-term survival. It is critical to undergo careful diagnosis and preoperative selection of patients who will most likely benefit from surgery. We have used published literature along with our personal experiences to review diagnosis of CTEPH and evaluation in advance of the PTE procedure. In patients with PH or suspected PH, a complete diagnostic workup should be performed to identify the underlying etiology of the disease. Pulmonary angiography and right heart catheterization are the preferred assessment tools to diagnose CTEPH. PTE remains the treatment of choice, and for further evaluation of operability and preoperative risk patients should be referred to a CTEPH expert center.

scholarly journals THE СLINICAL IMPACT OF PULMONARY ARTERY DISTENSIBILITY INDEX IN PATIENTS WITH PULMONARY HYPERTENSION

2013 ◽  
Vol 19 (2) ◽  
pp. 132-138
Author(s):  
A. V. Kazimli ◽  
A. V. Ryzhkov ◽  
N. S. Goncharova ◽  
A. V. Berezina ◽  
A. V. Naymushin ◽  
...  
Keyword(s):  
Pulmonary Hypertension ◽  
Pulmonary Artery ◽  
Cardiopulmonary Exercise Testing ◽  
Chronic Thromboembolic Pulmonary Hypertension ◽  
Right Heart Catheterization ◽  
Pulmonary Artery Hypertension ◽  
Heart Catheterization ◽  
Contrast Magnetic Resonance ◽  
Thromboembolic Pulmonary Hypertension ◽  
6 Minute Walk Test

Objective.Vascular remodeling in patients with pulmonary artery hypertension (PAH) may be assessed by measurement of contrast magnetic-resonance imaging (CMRI) derived pulmonary artery distensibility (PAD) index. The objective of our study was to investigate whether PAD index could be used as a marker for the evaluation of PAH severity.Design and methods.Forty four patients with PAH (mean age — 42,8 ± 14,5 years, males:females = 11:33) were enrolled: 29 patients with idiopathic pulmonary arterial hypertension, 4 subjects with corrected congenital heart disease, 3 subjects with scleroderma PAH and 8 patients with inoperable chronic thromboembolic pulmonary hypertension. All patients underwent 6-minute walk test, right heart catheterization (RHC), heart ultrasound (ECHO), CMRI, cardiopulmonary exercise testing, and serum N-terminal-pro-brain natriuretic peptide (NT-proBNP) level was defined.Results.PAD index was decreased in PAH patients 11,9 % (9,3-19,7). Patients with decreased PAD index < 20 % had higher NT-proBNP level, lower tricuspid annular systolic velocity and right ventricle/left ventricle ratio by ECHO. Patients with PAD index < 20 % had higher pulmonary artery systolic blood pressure (96,5 ± 22,4 versus 77,9 ± 19,4 mmHg; p < 0,05), and reduced cardiac output which were determined by RHC (3,98 ± 1,1 versus 4,95 ± 1,21 l/min; p < 0,05). Decreased VO2peak was found in patients with PAD index < 20 % (14,8 versus 18,8 ml/min/kg; p = 0,05).Conclusions.PA distensibility index may be used for noninvasive assessment of PAH severity and progression.

P5022Dual-energy CT was effective to evaluate of microvasculopathy in chronic thromboembolic pulmonary hypertension

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
H Onishi ◽  
Y Taniguchi ◽  
Y Matsuoka ◽  
K Yanaka ◽  
Y Izawa ◽  
...  
Keyword(s):  
Pulmonary Hypertension ◽  
Chronic Thromboembolic Pulmonary Hypertension ◽  
Inverse Correlation ◽  
Blood Perfusion ◽  
Cardiopulmonary Exercise Test ◽  
Right Heart Catheterization ◽  
Dual Energy Ct ◽  
Heart Catheterization ◽  
Thromboembolic Pulmonary Hypertension ◽  
The Impact

Abstract Background The existence of microvasculopathy in patients with chronic thromboembolic pulmonary hypertension (CTEPH) had been suggested. However, the impact of microvasculopathy for pathophysiology had been unknown. Recently dual-energy CT (DECT) can produce a sensitive iodine distribution map as blood perfusion in lung fields to quantify lung perfusion, also can suggest the existence of microvasculopathy according to poor subpleural perfusion which was published previously. Methods We retrospectively reviewed poor subpleural perfusion (defined as subpleural spaces either not or minimally perfused in all segments) and hemodynamics of 83 treatment-naïve CTEPH patients who underwent DECT from February 2014 to Jan 2019. Patients were divided according to poor subpleural perfusion: a microvasculopathy group (n=44) or a non-microvasculopathy group (n=39). We assessed cardiopulmonary exercise test, right heart catheterization and DECT parameters as quantitative evaluation of pulmonary blood volume (PBV). PBV was calculated as the average of entire lung iodine density. Results PBV value in non-microvasculopathy group showed significant inverse correlation with pulmonary vascular resistance (PVR) (y = 14236 x-1.028 r=−0.530, p<0.01). PBV, SvO2, and %DLCO/VA were significantly lower (22.0 vs. 26.4, p<0.01, 61.3 vs. 66.0, p<0.01, and 59.2 vs 75.9 p<0.01), and systolic pulmonary arterial pressure, PVR, VE/VCO2 slope, BNP were higher (69.3 vs 60.6 p=0.04, 834 vs 586 p<0.01, 45.5 vs. 37.8, p=0.02, and 440 vs 122 p=0.04) in microvasculopathy group, while the other parameters were similar between the two groups. Multivariate analysis revealed that %DLCO/VA was the only predictor of microvasculopathy (OR,0.895 [95% CI, 0.835 - 0.960]; P<0.01). Conclusion Pulmonary blood flow of patients in non-micorvasculopathy group showed inverse correlation with PVR. DECT was effective to assess the microvasculopathy in CTEPH. In our experience, less than 60% of non-operable CTEPH patients have microvasculopathy.

scholarly journals 4283Exercise right heart catheterization before and after balloon pulmonary angioplasty in inoperable patients with chronic thromboembolic pulmonary hypertension

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
C Liebetrau ◽  
S Kriechbaum ◽  
A Rieth ◽  
H A Ghofrani ◽  
M Haas ◽  
...  
Keyword(s):  
Pulmonary Hypertension ◽  
Chronic Thromboembolic Pulmonary Hypertension ◽  
Right Heart Catheterization ◽  
Walking Distance ◽  
Heart Catheterization ◽  
Right Heart ◽  
Pulmonary Hemodynamics ◽  
Balloon Pulmonary Angioplasty ◽  
Thromboembolic Pulmonary Hypertension ◽  
The Mean

Abstract Background Balloon pulmonary angioplasty (BPA) is an evolving treatment option for inoperable patients with chronic thromboembolic pulmonary hypertension (CTEPH). The main indicator for success is improvement in pulmonary hemodynamics, but outcome data are heterogeneous. Purpose The aim of the present study was to evaluate pulmonary hemodynamics not only at rest, but also during exercise before and 6 months after BPA. Methods We report a prospective series of 64 consecutive patients with inoperable CTEPH who were treated interventionally with BPA. All patients underwent standardized assessment prior to the first BPA and 6 months after the last intervention. Assessment included WHO FC, Cambridge Pulmonary Hypertension Outcome Review (CAMPHOR), 6-minute walking distance (6MWD), serum levels of the N-terminal fragment of pro-brain natriuretic peptide (NT-proBNP), and exercise RHC. Results The mean number of sessions per patient was 5.6 (± 1.3) and the mean number of pulmonary segments targeted in all interventions was 11 (± 3). BPA treatment led to improvements in pulmonary hemodynamics and exercise capacity (6MWD: 416±94 m vs. 463±96 m; p<0.0001) except for CO and CI during RHC at rest; these parameters showed improvements only during exercise RHC. MPAP at rest showed a reduction from 41±9 to 31±9 mmHg (p<0.0001) and PVR at rest decreased from 6.8±2.3 WU to 4.3±1.9 WU (p<0.0001). Further decreases were observed for systolic pulmonary arterial pressure, TPG, PVR, and TPR. Cardiac output (7.0±2.0 L/min vs. 8.3±2.0 L/min; p<0.0001) and cardiac index during exercise RHC (3.8±1.1 L/min/m2 vs. 4.4±1.1 L/min/m2; p<0.0001) improved significantly. Median NT-proBNP concentrations decreased from 741 ng/L (IQR 192–1425 ng/L) to 139 ng/L (IQR 60–266 ng/L) during BPA treatment (p<0.0001). Results from the CAMPHOR questionnaire showed significant improvements in symptoms (11±5.8 vs. 5.5±4.9, p<0.0001), activity limitations (9.2±5.6 vs. 5.2±4.5, p<0.0001), and quality of life (6.4±5.7 vs. 3.5±3.7, p<0.0001). Conclusion Significant improvements in pulmonary hemodynamics at rest and during exercise were observed 6 months after BPA. Exercise right heart catheterization offers a more discriminating evaluation of the changes in pulmonary hemodynamics after BPA.

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