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      Predicting outcome of rethoracotomy for suspected pericardial tamponade following cardio-thoracic surgery in the intensive care unit

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          Abstract

          Objectives

          Pericardial tamponade after cardiac surgery is difficult to diagnose, thereby rendering timing of rethoracotomy hard. We aimed at identifying factors predicting the outcome of surgery for suspected tamponade after cardio-thoracic surgery, in the intensive care unit (ICU).

          Methods

          Twenty-one consecutive patients undergoing rethoracotomy for suspected pericardial tamponade in the ICU, admitted after primary cardio-thoracic surgery, were identified for this retrospective study. We compared patients with or without a decrease in severe haemodynamic compromise after rethoracotomy, according to the cardiovascular component of the sequential organ failure assessment (SOFA) score.

          Results

          A favourable haemodynamic response to rethoracotomy was observed in 11 (52%) of patients and characterized by an increase in cardiac output, and less fluid and norepinephrine requirements. Prior to surgery, the absence of treatment by heparin, a minimum cardiac index < 1.0 L/min/m 2 and a positive fluid balance (> 4,683 mL) were predictive of a beneficial haemodynamic response. During surgery, the evacuation of clots and > 500 mL of pericardial fluid was associated with a beneficial haemodynamic response. Echocardiographic parameters were of limited help in predicting the postoperative course, even though 9 of 13 pericardial clots found at surgery were detected preoperatively.

          Conclusion

          Clots and fluids in the pericardial space causing regional tamponade and responding to surgical evacuation after primary cardio-thoracic surgery, are difficult to diagnose preoperatively, by clinical, haemodynamic and even echocardiographic evaluation in the ICU. Only absence of heparin treatment, a large positive fluid balance and low cardiac index predicted a favourable haemodynamic response to rethoracotomy. These data might help in deciding and timing of reinterventions after primary cardio-thoracic surgery.

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          Most cited references16

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          The incidence and natural history of pericardial effusion after cardiac surgery--an echocardiographic study.

          Jonathan Weitzman, Jacqueline F. Spencer, Myron S Cohen … (1984)
          One hundred twenty-two consecutive patients (104 men; 18 women) were studied to determine the incidence and natural history of pericardial effusion occurring 2, 5, 10, and 20 to 50 days after cardiac surgery. Three patients had pericardial effusions before and 103 patients (91 men; three women) had effusions after surgery. Effusions were first recorded on the second postoperative day in 72 patients, on the fifth postoperative day in 29 patients, and on the tenth postoperative day in two patients. In 96 of these patients, effusions reached their maximum size by postoperative day 10. Of the 103 patients with effusions, 66 (64%) were followed to complete resolution. A specific pattern was observed in most resolving effusions. The echo-free space diagnostic of pericardial effusion became progressively more echo-dense as the effusion diminished in size. As the effusion became echo-dense, the posterior pericardium, which had been motionless, resumed its normal systolic anterior motion. One patient developed cardiac tamponade on postoperative day 3. We conclude that pericardial effusion occurs frequently after cardiac surgery, but that associated complications are rare.
          Article 0 comments Cited 32 times – based on 0 reviews     Review now
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            Pericardial effusion after cardiac surgery: incidence, site, size, and haemodynamic consequences.

            G Tamborini, F Celeste, M Berti … (1994)
            To evaluate the incidence, characteristics, and haemodynamic consequences of pericardial effusion after cardiac surgery. Clinical, echocardiographic, and Doppler evaluations before and 8 days after cardiac surgery; with echocardiographic and Doppler follow up of patients with moderate or large pericardial effusion after operation. Patients undergoing cardiac surgery at a tertiary centre. 803 consecutive patients who had coronary artery bypass grafting (430), valve replacement (330), and other types of surgery (43). 23 were excluded because of early reoperation. Size and site of pericardial effusion evaluated by cross sectional echocardiography and signs of cardiac tamponade detected by ultrasound (right atrial and ventricular diastolic collapse, left ventricular diastolic collapse, distension of the inferior vena cava), and Doppler echocardiography (inspiratory decrease of aortic and mitral flow velocities). Pericardial effusion was detected in 498 (64%) of 780 patients and was more often associated with coronary artery bypass grafting than with valve replacement or other types of surgery; it was small in 68.4%, moderate in 29.8%, and large in 1.6%. Loculated effusions (57.8%) were more frequent than diffuse ones (42.2%). The size and site of effusion were related to the type of surgery. None of the small pericardial effusions increased in size; the amount of fluid decreased within a month in most patients with moderate effusion and in a few (7 patients) developed into a large effusion and cardiac tamponade. 15 individuals (1.9%) had cardiac tamponade; this event was significantly more common after valve replacement (12 patients) than after coronary artery bypass grafting (2 patients) or other types of surgery (1 patient after pulmonary embolectomy). In patients with cardiac tamponade aortic and mitral flow velocities invariably decreased during inspiration; the echocardiographic signs were less reliable. Pericardial effusion after cardiac surgery is common and its size and site are related to the type of surgery. Cardiac tamponade is rare and is more common in patients receiving oral anticoagulants. Echo-Doppler imaging is useful for the evaluation of pericardial fluid accumulations after cardiac surgery. It can identify effusions that herald cardiac tamponade.
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              Postoperative cardiac tamponade in the modern surgical era.

              Jeffrey T Kuvin, Nibal Harati, Natesa Pandian … (2002)
              Pericardial effusions resulting in cardiac tamponade (CT) are uncommon after open heart surgery (OHS) and are associated with significant morbidity and mortality. Characteristics and outcomes of patients who develop postoperative CT are poorly defined. Our objective was to further analyze the population at risk for developing postoperative CT, identify potential perioperative and surgical risk factors, and evaluate the impact of CT on patient outcomes. A retrospective analysis of 4,561 consecutive patients undergoing OHS at our institution was performed. Patients with clinical suspicion of pericardial effusion following surgery were evaluated by transthoracic or transesophageal echocardiography, and clinical parameters were analyzed. Forty-eight (1%) of the 4,561 patients were found to have echocardiographic evidence of a moderate or large pericardial effusion, of whom 36 (74%) had evidence of CT. The mean age of the patients with CT was 61 years. Coronary artery bypass grafting (CABG) had been performed in 24% of these patients, valve +/- CABG in 73%, and other OHS procedures in 3%. The incidence of CT following CABG alone was 0.2%, whereas it was 0.6% after valve +/- CABG. Females had a higher risk for developing CT, and this occurred earlier in the postoperative period when compared with men. Aspirin, heparin, or warfarin were given to 84% of patients within 3 days of surgery. Mean time to diagnosis of CT was 10 +/- 1 days after OHS. Prior to diagnosis of CT, the maximum international normalized ratio (INR) and partial thromboplastin time (PTT) were 2.7 +/- 0.3 and 68 +/- 5 seconds, respectively. Forty-nine percent of pericardial effusions were posterior and 46% were circumferential; one-third of the effusions were considered large by echocardiography. There was one in-hospital cardiovascular death. CT after OHS is more common following valve surgery than CABG alone and may be related to the preoperative use of anticoagulants. Females appear to be at higher risk for developing early postoperative CT. When diagnosed and treated promptly, postoperative CT should not significantly increase mortality.
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                Author and article information

                Journal
                Journal ID (nlm-ta): J Cardiothorac Surg
                Title: Journal of Cardiothoracic Surgery
                Publisher: BioMed Central
                ISSN (Electronic): 1749-8090
                Publication date Collection: 2011
                Publication date (Electronic): 30 May 2011
                Volume: 6
                Page: 79
                Affiliations
                [1 ]Department of Intensive Care, VU University Medical Center, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
                [2 ]Department of Cardiology, VU University Medical Center, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
                [3 ]Department of Cardiothoracic surgery, VU University Medical Center, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
                Article
                Publisher ID: 1749-8090-6-79
                DOI: 10.1186/1749-8090-6-79
                PMC ID: 3118337
                PubMed ID: 21624108
                SO-VID: f6b6b0d5-00fc-4974-8382-186832ccc4e5
                Copyright © Copyright ©2011 ten Tusscher et al; licensee BioMed Central Ltd.
                License:

                This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                Date received : 22 October 2010
                Date accepted : 30 May 2011
                Categories
                Subject: Research Article

                ScienceOpen disciplines: Surgery
                Keywords: regional vs circumferential tamponade,haemodynamics of tamponade,fluid balance,haemodynamic monitoring,echocardiography
                Data availability:
                ScienceOpen disciplines: Surgery
                Keywords: regional vs circumferential tamponade, haemodynamics of tamponade, fluid balance, haemodynamic monitoring, echocardiography

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