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Cardiac tamponade complicating proximal aortic dissection. Is pericardiocentesis harmful?

BACKGROUND: Cardiac tamponade frequently complicates acute proximal aortic dissection and is one of the most common causes of death from aortic dissection. Well-defined strategies for the management of acute aortic dissection now exist; however, little is known about how best to manage the hemopericardium that may complicate it. METHODS AND RESULTS: Using a computer-based review, we retrospectively identified 10 patients presenting to our hospital over a 13-year period who were diagnosed with both aortic dissection and cardiac tamponade. All 10 had proximal dissections. Three of the 10 presented as the sudden onset of fatal electromechanical dissociation, 6 presented with hypotension, and 1 was normotensive on presentation. Of the 7 hypotensive or normotensive patients diagnosed with cardiac tamponade, 4 underwent successful pericardiocentesis while awaiting surgery. At time intervals of 5 to 40 minutes after their pericardiocenteses, 3 of the 4 patients experienced sudden onset of electromechanical dissociation and death; the fourth patient survived and underwent surgical repair. Of the 3 hypotensive or normotensive patients who had either no pericardiocentesis or an unsuccessful pericardiocentesis, all 3 underwent successful surgical repair and survived. CONCLUSIONS: In this study, patients with an aortic dissection complicated by cardiac tamponade have an early mortality of 60%. While 3 of the 10 died from electromechanical dissociation immediately upon presentation, the 3 other deaths all occurred shortly after successful pericardiocentesis, a procedure undertaken to stabilize them. While the number of patients in this series is small, the observations do raise the possibility that in patients with cardiac tamponade complicating aortic dissection pericardiocentesis could be harmful rather than beneficial. Possible mechanisms for why the performance of pericardiocentesis might destabilize such patients are proposed.

Aged↗

Cardiac tamponade following pacemaker implantation.

Cardiac tamponade is a rare complications after pacemaker implantation. However iatrogeny is becoming one of the main causes of severe pericardial effusions. We present the experience of our centre compiled in 17 years.

Aged↗

Left ventricular pseudohypertrophy in cardiac tamponade: an echocardiographic study in a canine model.

OBJECTIVES: This study was designed to establish whether left ventricular pseudohypertrophy in cardiac tamponade can be reproducibly induced in an experimental canine model and to investigate the mechanism of its production. BACKGROUND: Past experimental and clinical studies have shown reduction of ventricular volumes resulting from cardiac tamponade. Left ventricular pseudohypertrophy, a transient thickening of myocardial walls, was recently described as a new echocardiographic sign of cardiac tamponade. METHODS: Cardiac tamponade was induced in seven anesthetized open chest dogs with serial bolus injections of 50 ml each of 0.9% saline solution into the pericardial sac. Under hemodynamic monitoring, M-mode and two-dimensional echocardiographic measurements were performed from a right parasternal window at each stage of graded cardiac tamponade. RESULTS: There was a progressive increase of interventricular septal and posterior wall diastolic thickness. Mean wall thickness (interventricular septal thickness + posterior wall thickness divided by 2) was 9.8 +/- 1.3 mm at baseline, 14.3 +/- 0.9 mm at peak tamponade and 9.0 +/- 1.5 mm after fluid withdrawal (p < 0.0001). Mean wall thickness correlated directly with the severity of cardiac tamponade, as estimated from the level of right arterial pressures (r = 0.75 and p < 0.0001), and with the decrease of left ventricular cavity volume (r = -0.67 and p < 0.0001). Left ventricular mass did not change significantly. CONCLUSIONS: Left ventricular pseudohypertrophy is a constant manifestation of cardiac tamponade in a canine model. The degree of myocardial thickening correlates with the reduction of ventricular dimensions and with the severity of hemodynamic compromise, representing a constant facet of heart remodeling in cardiac tamponade.

Animals↗

Anterior mediastinal teratoma presenting as cardiac tamponade.

Anterior mediastinal teratoma presenting clinically as cardiac tamponade is unusual. We report the case of a 58-year-old woman, with an unremarkable prior history, who was admitted with cardiac tamponade. Emergency pericardial aspiration showed a thick, yellow fluid. Computed tomography scan of the chest was suggestive of anterior mediastinal teratoma rupturing into the pericardium. Within 24 hours, just before the planned surgery could be performed, it re-ruptured, warranting emergency surgery. Histopathology confirmed the diagnosis of a teratoma. Early surgery is recommended for even asymptomatic benign mediastinal teratomas to avoid this potentially lethal complication of rupture into the pericardial cavity, and cardiac tamponade.

Cardiac Tamponade↗

Transcardiac pericardiocentesis: an emergency life-saving technique for cardiac tamponade.

Life-threatening cardiac tamponade is one of the most serious complications of catheter-based cardiac procedures. Although most cases can be effectively treated by percutaneous pericardiocentesis, urgent surgical drainage is required in unsuccessful cases. Rarely, in collapsed patients, the delay for surgery, however minimal, may be fatal. We describe a technique whereby life-saving pericardial drainage was rapidly achieved via a novel transcardiac approach, using the transseptal puncture kit, after failure of conventional pericardiocentesis in a patient with procedure-related acute tamponade who rapidly deteriorated and developed cardiorespiratory arrest within a few minutes. Although surgical repair for the perforation had to be performed subsequently, the patient survived without sequelae. This transcardiac approach may be an important and potentially life-saving adjunctive technique after failure of conventional pericardiocentesis in rapidly deteriorating or extremely unstable patients.

Aged↗

Acute cardiac tamponade secondary to congenital factor V deficiency.

Spontaneous cardiac tamponade secondary to a congenital coagulation defect has never been reported. We report a case of acute cardiac tamponade in a patient with a known factor V deficiency. This patient presented with classic signs of acute cardiac tamponade and an enlarged cardiac silhouette. After diagnostic two-dimensional echocardiography and treatment with fresh-frozen plasma, the patient underwent emergent pericardiocentesis followed by complete pericardiectomy.

Acute Disease↗

A case of cardiac tamponade following esophageal resection.

We report a rare case of cardiac tamponade after esophageal resection for esophageal cancer. A 69-year-old man underwent subtotal esophagectomy and reconstruction of the gastric tube with cervical anastomosis via the poststernal route and three-field lymphadectomy via a median sternotomy. On postoperative day 4, the patient developed dyspnea, chest oppression, and hemodynamic instability due to cardiac tamponade. Emergency percutaneous catheter drainage was performed to manage the cardiac tamponade. Acute pericarditis due to the original surgical procedure was suspected to be the cause of the tamponade. Although rare, cardiac tamponade should be considered as a cause of hemodynamic instability after esophageal resection.

Aged↗

Surgical drainage of late cardiac tamponade following open heart surgery.

BACKGROUND: There are few reports on postoperative late cardiac tamponade with surgical therapy in the literature. METHODS: Hospital records of 87 patients with postoperative late cardiac tamponade who had undergone cardiac surgery between January 1999 and December 2003 were evaluated retrospectively. RESULTS: Out of 8400 patients who had undergone cardiac surgery, 87 patients (1 %) had postoperative late cardiac tamponade. The incidence was 0.1 % for patients with coronary artery bypass grafting and 3.4 % for those with heart valve replacement ( p < 0.01). Subxiphoid midline incision was carried out in 67 patients (77 %). Conversion to re-sternotomy was required in 8 patients due to either ineffective drainage (5 patients, 7.5 %) or laceration and bleeding (3 patients, 4.5 %). Re-sternotomy was undertaken in 20 patients with no complication. Early death occurred in 3 patients with subxiphoid drainage (3.5 %), two of which were related to bleeding. Out of 84 patients who survived, 10 patients had recurrent cardiac tamponade, 5 of which required surgical drainage (6 %). CONCLUSIONS: Bleeding due to dense adhesions between the epicardium and the sternum may be encountered during subxiphoid drainage for postoperative late cardiac tamponade and lead to a 3 % mortality rate.

Adolescent↗

Left ventricular volume and function during relief of cardiac tamponade in man.

To determine the causes of cardiac failure during cardiac tamponade in man, we studied left ventricular volume and function in eight patients during pericardiocentesis using gated equilibrium radionuclide ventriculography. In the seven patients with clinical and hemodynamic evidence of cardiac tamponade, end-diastolic and end-systolic volumes increased progressively as the initial 500 ml of fluid were removed; the most marked increase occurred during the removal of the first 200 ml of pericardial fluid. After removal of 500 ml of pericardial fluid, end-diastolic volume increased from 52 +/- 8 ml to 111 +/- 13 ml (p less than 0.05) and end-systolic volume from 17 +/- 5 ml to 34 +/- 7 ml (p less than 0.05). Additional aspiration of fluid resulted in no further changes in left ventricular volume. The ejection fraction averaged 70% before removal of fluid and was unchanged by pericardiocentesis. In the one patient who did not have hemodynamic evidence of tamponade, there were only minor changes in left ventricular volumes and ejection fraction. These data suggest that pump function of the left ventricle is well preserved in cardiac tamponade, and that the diminution in stroke volume and consequent cardiovascular collapse seen in tamponade are due to marked underfilling of the ventricle.

Cardiac Output↗

Cardiac tamponade complicating postpericardiotomy syndrome.

We present 2 children who developed postpericardiotomy syndrome (PPS) and the rare complication of cardiac tamponade after cardiac surgery, each requiring life-saving pericardiocentesis in the emergency department (ED). Each child presented with vomiting as a chief complaint, an initial sign that has not been reported previously. As the frequency of orthotopic heart transplants and other cardiac surgeries among children increases, it is likely that ED physicians will encounter PPS and cardiac tamponade with greater frequency, and it is imperative that it be recognized promptly and treated appropriately. We review PPS, cardiac tamponade, and the proper performance of a pericardiocentesis.

Adrenal Cortex Hormones↗

Spontaneous drainage of cardiac tamponade.

The case of a 23-year-old man with life-threatening pericardial tamponade resulting from a cardiac stab wound is presented. After initial attempts at stabilization failed to reverse the progressively worsening status of the patient, he was prepared for surgery. Just prior to induction of anesthesia, blood began to flow from the patient's chest tube, resulting in a return to a near normal hemodynamic status. This was believed to be the result of spontaneous drainage of cardiac tamponade prior to cardiorrhaphy. The patient was discharged ten days post admission in excellent health and was doing well at a one-month follow-up visit. The discussion includes what comprises definitive care for cardiac tamponade, and the controversy in the timing and appropriateness of pericardiocentesis.

Adult↗

[The characteristic flow of the superior vena cava in cardiac tamponade: a case report].

A case of cardiac tamponade showing the characteristic flow pattern in the superior vena cava is reported. An 80-year-old man was admitted to our hospital complaining of anorexia and general fatigue. We observed a paradoxical pulse of 25 mmHg, dilatation of the jugular vein, and marked cardiomegaly on chest radiography. A two-dimensional echocardiogram demonstrated a massive pericardial effusion and collapse of the right atrial and right ventricular walls. On the basis of his echocardiograms and clinical signs, we diagnosed his condition as cardiac tamponade. Pulsed Doppler echocardiograms showed two-peaked flow in the superior vena cava in systole. To assess the diagnostic significance of this characteristic flow pattern, the superior vena cava flow was recorded simultaneously with the intrapericardial pressure and the right atrial pressure. The intrapericardial pressure was higher than the right atrial pressure in early systole. After pericardial drainage, these pressures became reversed and the two-peaked flow disappeared. The two-peaked flow is attributed to collapse of the right atrial wall caused by the higher intrapericardial pressure than the right atrial pressure. The superior vena cava flow represents the right heart filling dynamics in cardiac tamponade.

Aged↗

[Value of right ventricular and atrial collapse in identifying cardiac tamponade].

Collapse of the right ventricle and right and left atria is observed in cardiac tamponade. To assess the diagnostic value of each collapse component in identifying cardiac tamponade, two-dimensional and M-mode echocardiograms were recorded simultaneously with the measurement of intrapericardial pressure in five patients as they underwent pericardiocentesis. Before pericardiocentesis, each patient had evidence of right ventricular and right atrial collapse. In addition, left atrial collapse was observed in four patients. During pericardiocentesis, left atrial collapse initially resolved accompanied by a drop in pressure in the pericardial sac. Continuous drainage of pericardial effusion resulted in significant symptomatic improvement and the cessation of paradoxical pulse at the point of resolution of right ventricular collapse. However, right atrial collapse persisted after resolution of right ventricular collapse, but it was absent when pericardiocentesis was completed. Injection of saline solution with heparin into the pericardial sac for cleansing initially caused right atrial collapse, while right ventricular collapse developed with the appearance of cardiac tamponade. In one patient, the simultaneous recording of right ventricular and intrapericardial pressures and two-dimensional echocardiograms demonstrated that right ventricular collapse occurred early in diastole, when intrapericardial pressure exceeded right ventricular pressure. In conclusion, right ventricular collapse is the most reliable sign of cardiac tamponade. Right atrial collapse occurs in the early stage of cardiac tamponade. Left atrial collapse appears very late in the course of hemodynamic deterioration due to cardiac tamponade.

Adult↗

[Cardiac tamponade following open-heart surgery (author's transl)].

Cardiac tamponade occurred in 9 (1,8%) of 488 patients following open-heart surgery. Delayed cardiac tamponade was observed in one case (0,2%). The mediastinal tamponade was caused by early occlusion of the chest tubes, pericardium closure and administration of anticoagulants. A reliable sign of mediastinal tamponade is the expanding cardiac silhouette demonstrated by roentgenogram. In outpatients receiving anticoagulants following open-heart procedures a life-threatening delayed cardiac tamponade may develop.

Adolescent↗

Haemodynamics of cardiac tamponade during various modes of ventilation.

Cardiac output and pleural, pericardial, arterial and cardiac pressures were measured in baboons during different modes of ventilation in the presence of acute cardiac tamponade. Fluctuations in pleural pressure during intermittent positive pressure ventilation were transmitted to the pericardial fluid. Cardiac output and transmural right ventricular end-diastolic pressure were significantly greater during spontaneous ventilation than during intermittent positive pressure ventilation with or without positive end-expiratory pressure. It is recommended that a patient undergoing surgery for cardiac tamponade be allowed to breathe spontaneously until the chest is opened and the pericardium incised.

Animals↗

Alterations in intravascular volume affect the relation between right ventricular diastolic collapse and the hemodynamic severity of cardiac tamponade.

Right ventricular diastolic collapse has been demonstrated to be a sensitive and specific sign of cardiac tamponade. Because the shape and position of the right ventricular wall are related to the relative pressures within the pericardial space and the right ventricular chamber, the usefulness of right ventricular diastolic collapse as a marker of cardiac tamponade may be influenced by intravascular volume and right heart filling pressures. This study was undertaken to determine the effects of volume loading and hemorrhage on the point within the hemodynamic progression of cardiac tamponade at which right ventricular diastolic collapse first appears. Five unanesthetized, chronically instrumented dogs were studied with two-dimensional echocardiography during 41 episodes of cardiac tamponade induced by the intrapericardial infusion of warm saline solution. Intravascular volume was adjusted before cardiac tamponade to a hypovolemic, euvolemic or hypervolemic state using saline solution and dextran infusion or hemorrhaging to achieve the prescribed mean right atrial blood pressure. The measurements recorded during each episode of cardiac tamponade were right atrial blood pressure, aortic blood pressure, cardiac output (by electromagnetic flow meter), heart rate and intrapericardial pressure. When compared with the euvolemic state, the onset of right ventricular diastolic collapse in volume contraction occurred at a lower intrapericardial pressure (with a lower aortic blood pressure and cardiac output), whereas in volume expansion it occurred at a higher intrapericardial pressure (with a higher aortic blood pressure and cardiac output). Volume expansion delayed the decrease in hemodynamic variables during cardiac tamponade in this canine model.

Animals↗

Complete heart block and cardiac tamponade secondary to Merkel cell carcinoma cardiac metastases.

This is a unique case of Merkel cell carcinoma, a rare neuroendocrine tumor, metastasizing to the heart and inducing a progression of cardiac complications such as new-onset atrial fibrillation, malignant pericardial effusion with tamponade physiology, first-degree heart block, and complete heart block. Metastases to the heart are relatively rare but should be suspected if a patient with a known neoplasm presents with new cardiac manifestations. This is the first case report of cardiac metastases from Merkel cell carcinoma causing cardiac tamponade or complete heart block. This case highlights the clinical decision-making involved in managing cardiac tamponade and complete heart block in the setting of metastatic disease to the heart.

Aged↗

Cardiac tamponade in patients with human immunodeficiency virus disease.

The characteristics of cardiac tamponade in patients with human immunodeficiency virus (HIV) disease were examined by evaluating the cases, case series, and related articles, including autopsy series, identified through a comprehensive literature search. One-hundred eighty-five cases of cardiac tamponade have been reported in patients with HIV disease. Sex data were available in 176 patients, of whom 154 (87%) were males. The mean age was 34.7 +/- 10.4 years (range, 11 months to 61 years). Mean CD4 cell count was 98 +/- 95 cells/mm3 (range, 3 to 430 cells/mm3). The most common etiology of pericardial tamponade was mycobacterial infection (78 patients), including Mycobacterium tuberculosis, Mycobacterium avium-intracellulare, and Mycobacterium kansasii. A bacterial cause was found in 20 patients (11%). Staphylococcus aureus was the predominant bacteria, followed by streptococci, Pseudomonas aeruginosa, Listeria monocytogenes, Klebsiella pneumoniae, and Rhodococcus equi. Lymphoma was found in 15 (8%) patients and Kaposi sarcoma in 13 (7%) patients. Numerous unusual organisms, including Cryptococcus neoformans, Nocardia asteroides, Aspergillus species, cytomegalovirus, and herpes simplex were also associated with cardiac tamponade in HIV patients. Occasionally, HIV itself was involved in the pathogenesis. In 48 patients (26%), no cause was found or reported. The most common clinical presentation was dyspnea, followed by fever, cough, chest pain, and cardiac arrest. The predominant pericardial fluid color composition was serosanguineous. The majority of patients died during hospitalization or in the immediate follow-up period. Vigilance for cardiac tamponade in patients with HIV disease, especially in those with opportunistic infections and/or malignancies, and cardiac symptoms, may result in early and proper management of cardiac tamponade in these patients.

AIDS-Related Opportunistic Infections↗