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Published in: BMC Cardiovascular Disorders 1/2010

Open Access 01-12-2010 | Research article

Relation of tricuspid annular displacement and tissue Doppler imaging velocities with duration of weaning in mechanically ventilated patients with acute pulmonary edema

Authors: Vasilios E Papaioannou, Dimitrios A Stakos, Christos K Dragoumanis, Ioannis A Pneumatikos

Published in: BMC Cardiovascular Disorders | Issue 1/2010

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Abstract

Background

Liberation from the ventilator is a difficult task, whereas early echocardiographic indices of weaning readiness are still lacking. The aim of this study was to test whether tricuspid annular plane systolic excursion (TAPSE) and right ventricular (RV) systolic (Sm) and diastolic (Em & Am) tissue Doppler imaging (TDI) velocities are related with duration of weaning in mechanically ventilated patients with acute respiratory failure due to acute pulmonary edema (APE).

Methods

Detailed quantification of left and right ventricular systolic and diastolic function was performed at admission to the Intensive Care Unit by Doppler echocardiography, in a cohort of 32 mechanically ventilated patients with APE. TAPSE and RV TDI velocities were compared between patients with and without prolonged weaning (≥ or < 7 days from the first weaning trial respectively), whereas their association with duration of ventilation and left ventricular (LV) echo-derived indices was tested with multivariate linear and logistic regression analysis.

Results

Patients with prolonged weaning (n = 12) had decreased TAPSE (14.59 ± 1.56 vs 19.13 ± 2.59 mm), Sm (8.68 ± 0.94 vs 11.62 ± 1.77 cm/sec) and Em/Am ratio (0.98 ± 0.80 vs 2.62 ± 0.67, p <0.001 for all comparisons) and increased Ε/e' (11.31 ± 1.02 vs 8.98 ± 1.70, p <0.001) compared with subjects without prolonged weaning (n = 20). Logistic regression analysis revealed that TAPSE (R2 = 0.53, beta slope = 0.76, p < 0.001), Sm (R2 = 0.52, beta = 0.75, p < 0.001) and Em/Am (R2 = 0.57, beta = 0.32, p < 0.001) can predict length of weaning ≥ 7 days. The above measures were also proven to correlate significantly with Ε/e' (r = -0.83 for TAPSE, r = -0.87 for Sm and r = -0.79 for Em/Am, p < 0.001 for all comparisons).

Conclusions

We suggest that in mechanically ventilated patients with APE, low TAPSE and RV TDI velocities upon admission are associated with delayed liberation from mechanical ventilation, probably due to more severe LV heart failure.
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Literature
1.
go back to reference Epstein SK, Ciubotaru RL, Wong JB: Effect of failed extubation on the outcome of mechanical ventilation. Chest. 1997, 112: 186-192. 10.1378/chest.112.1.186.CrossRefPubMed Epstein SK, Ciubotaru RL, Wong JB: Effect of failed extubation on the outcome of mechanical ventilation. Chest. 1997, 112: 186-192. 10.1378/chest.112.1.186.CrossRefPubMed
2.
go back to reference Tousignant CP, Walsh F, Mazer CD: The use of transesophageal echocardiography for preload assessment in critically ill patients. Anesth Analg. 2000, 90: 351-355. 10.1097/00000539-200002000-00021.PubMed Tousignant CP, Walsh F, Mazer CD: The use of transesophageal echocardiography for preload assessment in critically ill patients. Anesth Analg. 2000, 90: 351-355. 10.1097/00000539-200002000-00021.PubMed
3.
go back to reference Nagueh SF, Kopelen HA, Zoghbi WA: Feasibility and accuracy of Doppler echocardiographic estimation of pulmonary artery occlusive pressure in the intensive care unit. Am J Cardiol. 1995, 75: 1256-1262. 10.1016/S0002-9149(99)80773-5.CrossRefPubMed Nagueh SF, Kopelen HA, Zoghbi WA: Feasibility and accuracy of Doppler echocardiographic estimation of pulmonary artery occlusive pressure in the intensive care unit. Am J Cardiol. 1995, 75: 1256-1262. 10.1016/S0002-9149(99)80773-5.CrossRefPubMed
4.
go back to reference Boussuges A, Blanc P, Molenat F, Burnet H, Habib G, Sainty JM: Evaluation of left ventricular filling pressure by transthoracic Doppler echocardiography in the intensive care unit. Crit Care Med. 2000, 30: 362-367. 10.1097/00003246-200202000-00016.CrossRef Boussuges A, Blanc P, Molenat F, Burnet H, Habib G, Sainty JM: Evaluation of left ventricular filling pressure by transthoracic Doppler echocardiography in the intensive care unit. Crit Care Med. 2000, 30: 362-367. 10.1097/00003246-200202000-00016.CrossRef
5.
go back to reference Lang RM, Bierig M, Devereux RB, Flachskampf FA, Foster E, Pellikka PA, Picard MH, Roman MJ, Seward J, Shanewise JS, Solomon SD, Spencer KT, Sutton MS, Stewart WJ: Recommendations for chamber quantification: a report from the American Society of Echocardiography's Guidelines and Standards Committee and the Chamber Quantification Writing Group, developed in conjunction with the European Association of Echocardiography, a branch of the European Society of Cardiology. J Am Soc Echocardiogr. 2005, 18: 1440-1463. 10.1016/j.echo.2005.10.005.CrossRefPubMed Lang RM, Bierig M, Devereux RB, Flachskampf FA, Foster E, Pellikka PA, Picard MH, Roman MJ, Seward J, Shanewise JS, Solomon SD, Spencer KT, Sutton MS, Stewart WJ: Recommendations for chamber quantification: a report from the American Society of Echocardiography's Guidelines and Standards Committee and the Chamber Quantification Writing Group, developed in conjunction with the European Association of Echocardiography, a branch of the European Society of Cardiology. J Am Soc Echocardiogr. 2005, 18: 1440-1463. 10.1016/j.echo.2005.10.005.CrossRefPubMed
6.
go back to reference Lamia B, Maizel J, Ochagavia A, Chemla D, Osman D, Richard C, Teboul JL: Echocardiographic diagnosis of pulmonary artery occlusion pressure elevation during weaning from mechanical ventilation. Crit Care Med. 2009, 37: 1696-1701. 10.1097/CCM.0b013e31819f13d0.CrossRefPubMed Lamia B, Maizel J, Ochagavia A, Chemla D, Osman D, Richard C, Teboul JL: Echocardiographic diagnosis of pulmonary artery occlusion pressure elevation during weaning from mechanical ventilation. Crit Care Med. 2009, 37: 1696-1701. 10.1097/CCM.0b013e31819f13d0.CrossRefPubMed
7.
go back to reference Baggish AL, Siebert U, Laichbury JG, Cameron R, Anwaruddin S, Chen A, Krauser DG, Tung R, Brown DF, Richards AM, Januzzi JL: A validated clinical and biochemical score for the diagnosis of acute heart failure. The ProBNP Investigation of Dyspnea in the Emergency Department (PRIDE) Acute Heart Failure Score. Am Heart J. 2006, 151: 48-54. 10.1016/j.ahj.2005.02.031.CrossRefPubMed Baggish AL, Siebert U, Laichbury JG, Cameron R, Anwaruddin S, Chen A, Krauser DG, Tung R, Brown DF, Richards AM, Januzzi JL: A validated clinical and biochemical score for the diagnosis of acute heart failure. The ProBNP Investigation of Dyspnea in the Emergency Department (PRIDE) Acute Heart Failure Score. Am Heart J. 2006, 151: 48-54. 10.1016/j.ahj.2005.02.031.CrossRefPubMed
8.
go back to reference Boles JM, Bion J, Connors A, Herridge M, Marsh B, Melot C, Pearl R, Silverman H, Stanchina M, Vieillard-Baron A, Welte T: Weaning from mechanical ventilation. Eur Respir J. 2007, 29: 1033-1056. 10.1183/09031936.00010206.CrossRefPubMed Boles JM, Bion J, Connors A, Herridge M, Marsh B, Melot C, Pearl R, Silverman H, Stanchina M, Vieillard-Baron A, Welte T: Weaning from mechanical ventilation. Eur Respir J. 2007, 29: 1033-1056. 10.1183/09031936.00010206.CrossRefPubMed
9.
go back to reference Esteban A, Alia I, Tobin MJ, Gil A, Gordo F, Vallverdu I, Blanch L, Bonet A, Vazquez A, Pablo RD, Torres A, de la Cal MA, Macias S: Effect of spontaneous breathing trial on outcome of attempts to discontinue mechanical ventilation. Spanish Lung Failure Collaborative Group. Am J Respir Crit Care Med. 1999, 159: 512-518.CrossRefPubMed Esteban A, Alia I, Tobin MJ, Gil A, Gordo F, Vallverdu I, Blanch L, Bonet A, Vazquez A, Pablo RD, Torres A, de la Cal MA, Macias S: Effect of spontaneous breathing trial on outcome of attempts to discontinue mechanical ventilation. Spanish Lung Failure Collaborative Group. Am J Respir Crit Care Med. 1999, 159: 512-518.CrossRefPubMed
10.
go back to reference Slama M, Maizel J: Echocardiographic measurements of ventricular function. Curr Opin Crit Care Med. 2006, 12: 241-248. 10.1097/01.ccx.0000224869.86205.1a.CrossRef Slama M, Maizel J: Echocardiographic measurements of ventricular function. Curr Opin Crit Care Med. 2006, 12: 241-248. 10.1097/01.ccx.0000224869.86205.1a.CrossRef
11.
go back to reference Lichtenstein D, Jardin F: Appréciation non invasive de la pression veineuse centrale par la mesure échographique du calibre da la veine cave inférieure en réanimation. Rean Urg. 1994, 3: 79-82.CrossRef Lichtenstein D, Jardin F: Appréciation non invasive de la pression veineuse centrale par la mesure échographique du calibre da la veine cave inférieure en réanimation. Rean Urg. 1994, 3: 79-82.CrossRef
12.
go back to reference Yock PG, Popp RL: Noninvasive estimation of right ventricular systolic pressure by Doppler ultrasound in patients with tricuspid regurgitation. Circulation. 1984, 70: 657-662.CrossRefPubMed Yock PG, Popp RL: Noninvasive estimation of right ventricular systolic pressure by Doppler ultrasound in patients with tricuspid regurgitation. Circulation. 1984, 70: 657-662.CrossRefPubMed
13.
go back to reference Kircher BJ, Himelman RB, Schiller NB: Noninvasive estimation of right atrial pressure from the inspiratory collapse of the inferior vena cava. Am J Cardiol. 1990, 66: 493-496. 10.1016/0002-9149(90)90711-9.CrossRefPubMed Kircher BJ, Himelman RB, Schiller NB: Noninvasive estimation of right atrial pressure from the inspiratory collapse of the inferior vena cava. Am J Cardiol. 1990, 66: 493-496. 10.1016/0002-9149(90)90711-9.CrossRefPubMed
14.
go back to reference Kaul S, Tei C, Hopkins JM: Assessment of right ventricular function using two-dimensional echocardiography. Am Heart J. 1984, 107: 526-531. 10.1016/0002-8703(84)90095-4.CrossRefPubMed Kaul S, Tei C, Hopkins JM: Assessment of right ventricular function using two-dimensional echocardiography. Am Heart J. 1984, 107: 526-531. 10.1016/0002-8703(84)90095-4.CrossRefPubMed
15.
go back to reference Ghio S, Recusani F, Klersy C, Sebastiani R, Laudisa ML, Campana C, Gavazzi A, Tavazzi L: Prognostic usefulness of the tricuspid annular plane systolic excursion in patients with congestive heart failure secondary to idiopathic or ischemic dilated cardiomyopathy. Am J Cardiol. 2000, 85: 837-842. 10.1016/S0002-9149(99)00877-2.CrossRefPubMed Ghio S, Recusani F, Klersy C, Sebastiani R, Laudisa ML, Campana C, Gavazzi A, Tavazzi L: Prognostic usefulness of the tricuspid annular plane systolic excursion in patients with congestive heart failure secondary to idiopathic or ischemic dilated cardiomyopathy. Am J Cardiol. 2000, 85: 837-842. 10.1016/S0002-9149(99)00877-2.CrossRefPubMed
16.
go back to reference Waggoner AD, Bierig SM: Tissue Doppler imaging: a useful echocardio-graphic method for the cardiac sonographer to assess systolic and diastolic ventricular function. J Am Soc Echocardiogr. 2001, 14 (12): 1143-1152. 10.1067/mje.2001.115391.CrossRefPubMed Waggoner AD, Bierig SM: Tissue Doppler imaging: a useful echocardio-graphic method for the cardiac sonographer to assess systolic and diastolic ventricular function. J Am Soc Echocardiogr. 2001, 14 (12): 1143-1152. 10.1067/mje.2001.115391.CrossRefPubMed
17.
go back to reference Isaaz K: What are we actually measuring by Doppler tissue imaging?. J Am Coll Cardiol. 2000, 36 (3): 897-899. 10.1016/S0735-1097(00)00800-7.CrossRefPubMed Isaaz K: What are we actually measuring by Doppler tissue imaging?. J Am Coll Cardiol. 2000, 36 (3): 897-899. 10.1016/S0735-1097(00)00800-7.CrossRefPubMed
18.
go back to reference Combes A, Arnoult F, Trouillet JL: Tissue Doppler imaging estimation of pulmonary artery occlusion pressure in ICU patients. Intensive Care Med. 2004, 30: 75-81. 10.1007/s00134-003-2039-x.CrossRefPubMed Combes A, Arnoult F, Trouillet JL: Tissue Doppler imaging estimation of pulmonary artery occlusion pressure in ICU patients. Intensive Care Med. 2004, 30: 75-81. 10.1007/s00134-003-2039-x.CrossRefPubMed
19.
go back to reference Vignon P, AitHssain A, François B, Preux PM, Pichon N, Clavel M, Frat JP, Gastinne H: Echocardiographic assessment of pulmonary artery occlusion pressure in ventilated patients: a transoesophageal study. Crit Care. 2008, 12: R18-10.1186/cc6792.CrossRefPubMedPubMedCentral Vignon P, AitHssain A, François B, Preux PM, Pichon N, Clavel M, Frat JP, Gastinne H: Echocardiographic assessment of pulmonary artery occlusion pressure in ventilated patients: a transoesophageal study. Crit Care. 2008, 12: R18-10.1186/cc6792.CrossRefPubMedPubMedCentral
20.
go back to reference Nieminen MS, Bohm M, Cowie MR, Drexler H, Filippatos GS, Jondeau G, Hasin Y, Lopez-Senton J, Mebazaa A, Metra M, Rhodes A, Swedberg K: Executive summary of the guidelines on the diagnosis and treatment of acute heart failure: the Task Force on Acute Heart Failure of the European Society of Cardiology. Eur Heart J. 2005, 26: 384-416. 10.1093/eurheartj/ehi044.CrossRefPubMed Nieminen MS, Bohm M, Cowie MR, Drexler H, Filippatos GS, Jondeau G, Hasin Y, Lopez-Senton J, Mebazaa A, Metra M, Rhodes A, Swedberg K: Executive summary of the guidelines on the diagnosis and treatment of acute heart failure: the Task Force on Acute Heart Failure of the European Society of Cardiology. Eur Heart J. 2005, 26: 384-416. 10.1093/eurheartj/ehi044.CrossRefPubMed
21.
go back to reference Lemaire F, Teboul JL, Cinotti L, Giotto G, Abrouk F, Steg G, Macquin-Mavier I, Zapol WM: Acute left ventricular dysfunction during unsuccessful weaning from mechanical ventilation. Anesthesiology. 1988, 69: 171-179. 10.1097/00000542-198808000-00004.CrossRefPubMed Lemaire F, Teboul JL, Cinotti L, Giotto G, Abrouk F, Steg G, Macquin-Mavier I, Zapol WM: Acute left ventricular dysfunction during unsuccessful weaning from mechanical ventilation. Anesthesiology. 1988, 69: 171-179. 10.1097/00000542-198808000-00004.CrossRefPubMed
22.
go back to reference Schmidt H, Rohr D, Bauer H, Bohrer H, Motsch J, Martin E: Changes in intrathoracic fluid volumes during weaning from mechanical ventilation in patients after coronary artery bypass grafting. J Crit Care. 1997, 12: 22-27. 10.1016/S0883-9441(97)90022-8.CrossRefPubMed Schmidt H, Rohr D, Bauer H, Bohrer H, Motsch J, Martin E: Changes in intrathoracic fluid volumes during weaning from mechanical ventilation in patients after coronary artery bypass grafting. J Crit Care. 1997, 12: 22-27. 10.1016/S0883-9441(97)90022-8.CrossRefPubMed
23.
go back to reference Oh TE, Bhatt S, Lin ES, Hutchinson RC, Low JM: Plasma catecholamines and oxygen consumption during weaning from mechanical ventilation. Intensive Care Med. 1991, 17: 199-203. 10.1007/BF01709877.CrossRefPubMed Oh TE, Bhatt S, Lin ES, Hutchinson RC, Low JM: Plasma catecholamines and oxygen consumption during weaning from mechanical ventilation. Intensive Care Med. 1991, 17: 199-203. 10.1007/BF01709877.CrossRefPubMed
24.
go back to reference Delooz HH: Factors influencing successful discontinuance of mechanical ventilation after open heart surgery: a clinical study of 41 patients. Crit Care Med. 1976, 4: 265-270. 10.1097/00003246-197609000-00010.CrossRefPubMed Delooz HH: Factors influencing successful discontinuance of mechanical ventilation after open heart surgery: a clinical study of 41 patients. Crit Care Med. 1976, 4: 265-270. 10.1097/00003246-197609000-00010.CrossRefPubMed
25.
go back to reference Jubran A, Marthu M, Dries D, Tobin MJ: Continuous recording of mixed venous oxygen saturation during weaning from mechanical ventilation and the ramifications thereof. Am J Respir Crit Care Med. 1998, 158: 1763-1769.CrossRefPubMed Jubran A, Marthu M, Dries D, Tobin MJ: Continuous recording of mixed venous oxygen saturation during weaning from mechanical ventilation and the ramifications thereof. Am J Respir Crit Care Med. 1998, 158: 1763-1769.CrossRefPubMed
26.
go back to reference Mekontso-Dessap AM, Prost N, Girou E, Braconnier F, Lemaire F, Brun-Buisson C, Brochard L: B-type natriuretic peptide and weaning from mechanical ventilation. Intensive Care Med. 2006, 32: 1529-1536. 10.1007/s00134-006-0339-7.CrossRefPubMed Mekontso-Dessap AM, Prost N, Girou E, Braconnier F, Lemaire F, Brun-Buisson C, Brochard L: B-type natriuretic peptide and weaning from mechanical ventilation. Intensive Care Med. 2006, 32: 1529-1536. 10.1007/s00134-006-0339-7.CrossRefPubMed
27.
go back to reference Samad BA, Alam M, Jensen-Urstad K: Prognostic impact of right ventricular involvement as assessed by tricuspid annular motion in patients with acute myocardial infarction. Am J Cardiol. 2002, 90: 778-781. 10.1016/S0002-9149(02)02612-7.CrossRefPubMed Samad BA, Alam M, Jensen-Urstad K: Prognostic impact of right ventricular involvement as assessed by tricuspid annular motion in patients with acute myocardial infarction. Am J Cardiol. 2002, 90: 778-781. 10.1016/S0002-9149(02)02612-7.CrossRefPubMed
28.
go back to reference Kjaergaard J, Akkan D, Iversen KK, Kober L, Torp-Pedersen C, Hassager C: Right ventricular dysfunction as an independent predictor of short-and long-term mortality in patients with heart failure. Eur J Heart Fail. 2007, 9: 610-616. 10.1016/j.ejheart.2007.03.001.CrossRefPubMed Kjaergaard J, Akkan D, Iversen KK, Kober L, Torp-Pedersen C, Hassager C: Right ventricular dysfunction as an independent predictor of short-and long-term mortality in patients with heart failure. Eur J Heart Fail. 2007, 9: 610-616. 10.1016/j.ejheart.2007.03.001.CrossRefPubMed
29.
go back to reference Forfia PR, Fisher MR, Mathai SC, Housten-Harris T, Hemnes AR, Borlaug BA, Chamera E, Corretti MC, Champion HC, Abraham TP, Girgis RE, Hassoun PM: Tricuspid annular displacement predicts survival in pulmonary hypertension. Am J Respir Crit Care Med. 2006, 174: 1034-1041. 10.1164/rccm.200604-547OC.CrossRefPubMed Forfia PR, Fisher MR, Mathai SC, Housten-Harris T, Hemnes AR, Borlaug BA, Chamera E, Corretti MC, Champion HC, Abraham TP, Girgis RE, Hassoun PM: Tricuspid annular displacement predicts survival in pulmonary hypertension. Am J Respir Crit Care Med. 2006, 174: 1034-1041. 10.1164/rccm.200604-547OC.CrossRefPubMed
30.
go back to reference Lamia B, Teboul JL, Monnet X, Richard C, Chemla D: Relationship between the tricuspid annular systolic excursion and right and left ventricular function in critically ill patients. Intensive Care Med. 2007, 33: 2143-2149. 10.1007/s00134-007-0881-y.CrossRefPubMed Lamia B, Teboul JL, Monnet X, Richard C, Chemla D: Relationship between the tricuspid annular systolic excursion and right and left ventricular function in critically ill patients. Intensive Care Med. 2007, 33: 2143-2149. 10.1007/s00134-007-0881-y.CrossRefPubMed
31.
go back to reference Meluzin J, Spinarova L, Bakala J, Toman J, Krejci J, Hude P, Kara T, Soucek M: Pulsed Doppler tissue imaging of the velocity of tricuspid annular systolic motion. A new, rapid and non-invasive method of evaluating right ventricular systolic function. Eur Heart J. 2001, 22: 340-348. 10.1053/euhj.2000.2296.CrossRefPubMed Meluzin J, Spinarova L, Bakala J, Toman J, Krejci J, Hude P, Kara T, Soucek M: Pulsed Doppler tissue imaging of the velocity of tricuspid annular systolic motion. A new, rapid and non-invasive method of evaluating right ventricular systolic function. Eur Heart J. 2001, 22: 340-348. 10.1053/euhj.2000.2296.CrossRefPubMed
32.
go back to reference Meluzin J, Spiranova L, Hude P, Krejci J, Kincl V, Panovsky R, Dusek L: Prognostic importance of various echocardiographic right ventricular functional parameters in patients with symptomatic heart failure. J Am Soc Echocardiogr. 2005, 18: 435-444. 10.1016/j.echo.2005.02.004.CrossRefPubMed Meluzin J, Spiranova L, Hude P, Krejci J, Kincl V, Panovsky R, Dusek L: Prognostic importance of various echocardiographic right ventricular functional parameters in patients with symptomatic heart failure. J Am Soc Echocardiogr. 2005, 18: 435-444. 10.1016/j.echo.2005.02.004.CrossRefPubMed
33.
go back to reference Dokainish H, Sengupta R, Patel R, Lakkis N: Usefulness of right ventricular tissue Doppler imaging to predict outcome in left ventricular heart failure independent of left ventricular diastolic function. Am J Cardiol. 2007, 99: 961-965. 10.1016/j.amjcard.2006.11.042.CrossRefPubMed Dokainish H, Sengupta R, Patel R, Lakkis N: Usefulness of right ventricular tissue Doppler imaging to predict outcome in left ventricular heart failure independent of left ventricular diastolic function. Am J Cardiol. 2007, 99: 961-965. 10.1016/j.amjcard.2006.11.042.CrossRefPubMed
34.
go back to reference Santamore WP, Dell' Italia LJ: Ventricular interdependence: significant left ventricular contributions to right ventricular systolic function. Prog Cardiovasc Dis. 1998, 40: 289-308. 10.1016/S0033-0620(98)80049-2.CrossRefPubMed Santamore WP, Dell' Italia LJ: Ventricular interdependence: significant left ventricular contributions to right ventricular systolic function. Prog Cardiovasc Dis. 1998, 40: 289-308. 10.1016/S0033-0620(98)80049-2.CrossRefPubMed
35.
go back to reference Barbier C, Loubieres Y, Schmit C, Hayon J, Ricom JL, Jardin F, Vieillard-Barron A: Respiratory changes in inferior vena cava diameter are helpful in predicting fluid responsiveness in ventilated septic patients. Intensive Care Med. 2004, 30: 1740-1746.PubMed Barbier C, Loubieres Y, Schmit C, Hayon J, Ricom JL, Jardin F, Vieillard-Barron A: Respiratory changes in inferior vena cava diameter are helpful in predicting fluid responsiveness in ventilated septic patients. Intensive Care Med. 2004, 30: 1740-1746.PubMed
36.
go back to reference Vieillard-Baron A, Prin S, Chergui K, Dubourg O, Jardin F: Echo-Doppler demonstration of acute cor pulmonale at the bedside in the medical intensive care unit. Am J Respir Crit Care Med. 2002, 166: 1310-1319. 10.1164/rccm.200202-146CC.CrossRefPubMed Vieillard-Baron A, Prin S, Chergui K, Dubourg O, Jardin F: Echo-Doppler demonstration of acute cor pulmonale at the bedside in the medical intensive care unit. Am J Respir Crit Care Med. 2002, 166: 1310-1319. 10.1164/rccm.200202-146CC.CrossRefPubMed
Metadata
Title
Relation of tricuspid annular displacement and tissue Doppler imaging velocities with duration of weaning in mechanically ventilated patients with acute pulmonary edema
Authors
Vasilios E Papaioannou
Dimitrios A Stakos
Christos K Dragoumanis
Ioannis A Pneumatikos
Publication date
01-12-2010
Publisher
BioMed Central
Published in
BMC Cardiovascular Disorders / Issue 1/2010
Electronic ISSN: 1471-2261
DOI
https://doi.org/10.1186/1471-2261-10-20

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