scholarly journals Elevated systolic pulmonary artery pressure for prediction of myocardial necrosis and right ventricular dysfunction in acute pulmonary embolism

Cor et Vasa ◽  
2016 ◽  
Vol 58 (4) ◽  
pp. e403-e410 ◽  
Author(s):  
Karsten Keller ◽  
Martin Geyer ◽  
Meike Coldewey ◽  
Johannes Beule ◽  
Jörn Oliver Balzer ◽  
...  
2011 ◽  
Vol 18 (4) ◽  
pp. e52-e58 ◽  
Author(s):  
Lisa Ferrigno ◽  
Robert Bloch ◽  
Judson Threlkeld ◽  
Thomas Demlow ◽  
Raman Kansal ◽  
...  

BACKGROUND: Catheter thrombectomy combining thrombus destruction with local thrombolysis has been used in patients with pulmonary embolism (PE) who are unstable or have significant right heart dysfunction, but have contraindications to systemic thrombolytic therapy.OBJECTIVES: To assess the outcomes of patients who underwent pulmonary embolectomy using a commercially available thrombectomy device.METHODS: A retrospective chart review of patients who underwent pulmonary embolectomy between March 2007 and August 2009 was performed. Patients were classified as having clinical massive or submassive PE, and moderate or severe right ventricular dysfunction. Data collected included pre- and postprocedure shock index (heart rate divided by systolic blood pressure) and mean pulmonary artery pressure.RESULTS: Sixteen patients with a mean (± SD) age of 54.4±15.8 years underwent embolectomy. Five had clinical massive PE (two in cardiogenic shock) and three of 11 submassive cases had severe right ventricular dysfunction. All were deemed to have contraindications to systemic lysis. Both shock index (1.02±33 preintervention versus 0.71±0.2 postintervention [P=0.001]) and mean pulmonary artery pressure (34.5±9.9 mmHg preintervention versus 27.1±7.1 postintervention [P=0.01]) improved. In the massive PE group, one patient died and two survivors experienced retroperitoneal bleeding and transient renal failure. At follow-up (17.3±7.8 months), two patients in the massive PE group demonstrated evidence of mild cor pulmonale.CONCLUSION: Rheolytic thrombectomy is an effective strategy in managing massive PE, particularly in patients who have well-defined contraindications to systemic lytic therapy. The effectiveness of rheolytic thrombectomy for submassive PE is not as well defined, but warrants a comparison with systemic lytic therapy.


Author(s):  
V. F. Larin ◽  
V. A. Zhikharev ◽  
A. S. Bushuev ◽  
V. A. Porhanov ◽  
V. A. Koriachkin ◽  
...  

Background There are scanty data of right ventricular dysfunction markers after major pulmonary resection.Objective To study the changes of plasma level of N-terminal pro-brain natriuretic peptide (NT-proBNP) and its association with pulmonary artery pressure (PAP) as markers of right ventricular dysfunction in patients who underwent bronchoplastic lobectomy or pneumonectomy.Material and Methods The study population consisted of 36 patients aged 40–65 who underwent major  pulmonary resection for lung cancer in 2016–2018. Patients were stratified into two groups according to the type of surgical procedure: bronchoplastic lobectomy, the main group (n = 19), and pneumonectomy, control group (n = 17). They were then analyzed for plasma NT-proBNP concentration, operative time, blood loss, intraoperative fluid administration, intraoperative urine output, and mean PAP level before and after an operation.Results The mean PAP level correlated positively with the plasma NT-proBNP concentration in the pneumonectomy group (Pearson r = 0.916754; p < 0.001). This correlation was no evident in the subset of patients undergoing bronchoplastic lobectomy at the same determination point (Pearson r = 0.234741; p = 0.330).Conclusion The mean PAP increased significantly after pneumonectomy and is closely correlated with plasma  NTproBNP concentration. These findings support the conclusion that bronchoplasty is preferable over pneumonectomy for lung cancer patients.


2017 ◽  
Vol 26 (1) ◽  
pp. 38-43 ◽  
Author(s):  
Muthiah Subramanian ◽  
Srinivasan Ramadurai ◽  
Preetam Arthur ◽  
Sowmya Gopalan

Background The purpose of this study was to investigate the correlation between the computed tomography pulmonary artery obstruction index and parameters of functional lung impairment in acute pulmonary embolism, and establish the value of these parameters in prognosticating right ventricular dysfunction and 30-day mortality. Methods This study included 322 consecutive patients (mean age 45.6 ± 13.2 years, 46.9% male) with acute pulmonary embolism, free of other cardiopulmonary disease, who underwent computed tomography pulmonary angiography. Correlations of arterial CO2, O2, and alveolar-arterial oxygen gradient with the computed tomography pulmonary artery obstruction index, measured using the Qanadli score, were analyzed. Logistic regression was used to identify independent predictors of right ventricular dysfunction and 30-day mortality. Results Of the 322 patients, 196 (60.9%) had right ventricular dysfunction, and 58 (18.0%) died within 30 days. The pulmonary artery obstruction index had a significant correlation with partial pressures of arterial O2 ( r = −0.887, p < 0.001) and CO2 ( r = −0.618, p = 0.019) and alveolar-arterial oxygen gradient ( r = +0.874, p < 0.001). Arterial O2 pressure had a good predictive accuracy and discriminative power for both right ventricular dysfunction (sensitivity 80.6%, specificity 85.1%, area under the curve 0.91) and 30-day mortality (sensitivity 77.8%, specificity 82.0%, area under the curve 0.89). Conclusions In patients with acute pulmonary embolism, free of other cardiopulmonary disease, parameters of functional impairment have a strong correlation with computed tomography pulmonary artery obstruction index. Hypoxia is an independent predictor of both right ventricular dysfunction and 30-day mortality in these patients.


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