Eleven years' experience with pericardial-peritoneal window in the management of malignant and benign pericardial effusions

Background: Before 1983 we routinely used subxiphoid drainage for the management of pericardial effusions. Pericardial-pleural window through a left anterior thoracotomy was used in selected patients. Due to frustration over the rate of recurrent pericardial effusions with subxiphoid drainage alone and concern over the higher morbidity with thoracotomy, the creation of a 3-cm pericardial-peritoneal window in the fused portion of the pericardium and diaphragm overlying the left lobe of the liver was added to subxiphoid drainage in 1983. Methods: This study is a retrospective chart review of the 33 patients undergoing pericardial-peritoneal window from 1983 through 1993. Eighteen patients had malignancies, mainly lung and breast, and 15 had benign pericardial effusions. Results: The procedure was well tolerated, with a 30-day mortality of 9%; however, no deaths were directly related to the pericardial effusion or the procedure. No patient developed peritoneal carcinomatosis or diaphragmatic hernia. One patient developed recurrent pericardial effusion during follow-up, and two required pericardiectomy for constrictive disease. Among those with malignancies, patients with breast cancer had the longest survival after pericardial-peritoneal window. Conclusions: Pericardial-peritoneal window is a simple, safe, and effective procedure and applicable to most patients with malignant and noninfectious benign pericardial effusion, including those with tamponade. Presented at the 47th Annual Cancer Symposium of The Society of Surgical Oncology, Houston, Texas, March 17–20, 1994.     

Pericardioperitoneal and pericardiopleural windows: A drainage technique for the treatment of recurrent cardiac tamponade. A case report

IntroductionGiven that pericardial effusion may sometimes lead to cardiac tamponade and chronic heart failure, its management seems absolutely essential. In case of a poor response to medical therapy, surgical drainage of the effusion is required. Although some drainage procedures for pericardial effusion (e.g., temporary puncture, pericardiopleural drainage, and pericardioperitoneal drainage) are currently used in clinical practice, their long-term efficacy remains unclear.Presentation of caseWe present a case of a 58-year old female with recurrent pericardial effusion secondary to systemic lupus erythematosus. Since she was relatively young and on steroids, long-term patency of pericardial fenestration needed to be insured without any device. Hence, we created 2 pericardial windows, pericardioperitoneal and pericardiopleural, via a single-incision subxiphoid approach to allow the effusion to drain into the abdominal and thoracic cavities.DiscussionIt is important to efficiently manage pericardial effusion because it can lead to more serious conditions such as cardiac tamponade and chronic heart failure. Our technique, which involves making a small incision, can reduce the risk of recurrence.ConclusionSimultaneous creation of pericardioperitoneal and pericardiopleural windows is simple and can be feasibly performed to prevent the recurrence of pericardial effusion.     

Which treatment in pericardial effusion?

BACKGROUND: Pericardiocentesis, pleuro-pericardial window, subxiphoid pericardial drainage and pericardioscopy: which methodology to treat pericardial effusion? Each of these surgical treatments can be effective, depending on clinical factors and history of the patients. We considered pericardial effusions during 5 years. METHODS: We reviewed 64 cases: 14 acute pericardial effusions (5 patients with cardiac tamponade), 39 subacute, 11 chronic. Epidemiology and aetiology: 8 cases were between 20 and 25 years old (all affected by lymphoma), 56 were distributed in every age, especially over 60, and of these 45 were neoplastic and 11 non- neoplastic. Non-neoplastic cases were connectivitis (3 patients), uncertain origin effusion (7 patients), tubercular (1 patient). In neoplastic effusions we found lymphoma (at older age) in 7, small cell lung cancer in 6, NSCLC in 12, mesothelioma in 2, breast cancer in 7. RESULTS: Acute pericardial effusions with cardiac tamponade underwent echo-guided pericardiocentesis. In 43 we had a subxiphoid pericardial drainage, among these cases we performed 4 pericardioscopies. We created a pleuro-pericardial window on VATS in 13, on thoracotomy in 4 for technical reasons. CONCLUSIONS: Pericardiocentesis is to be preferred in acute pericardial effusion with cardiac tamponade to avoid general anaesthesia. Pleuro-pericardial window on VATS is better in chronic pericardial effusion (for infective or systemic disease) and in recurrence, after performing subxiphoid drainage. Subxiphoid drainage is suitable for all neoplastic patients, and in case of unknown aetiology in order to perform a pericardioscopy.     

Laparoscopic pericardio-peritoneal window: an alternative approach in the treatment of recurrent pericardial effusion, in-hospital evolution and survival

BACKGROUND: Although cardiac tamponade due to pericardial effusion is not frequently seen it may, in many cases require surgical drainage. The aim of this study is to show our experience with a laparoscopic approach to perform the pericardio-peritoneal window in the management of recurrent pericardial effusion. METHODS: We included 16 patients with recurrent pericardial effusion and echocardiographic global tamponade. A pneumoperitoneum was made and 3 trocars were placed; an avascular area of the diaphragm was chosen and a pericardial window was made (4 cm diameter). RESULTS: Pericardial-peritoneal window was carried out successfully (mean operative time 40 min). All patients presented relief of symptoms. The mean follow-up was 729 days. No patient experienced recurrence on repeated ecocardiographic examinations. There were no fatal events related to the procedure. CONCLUSIONS: Laparoscopic pericardial window is a simple, safe, and effective alternative for the treatment of recurrent pericardial effusion with global cardiac tamponade.     

Spumous histiocytic oligoarthritis coexisting with systemic Langerhans’ cell histiocytosis: Case report and literature review

A 27-year-old man consulted with clinical and radiological features of chronic erosive oligoarthritis of large joints (hips and knee), associated with diffuse lymph-node enlargement and diabetes insipidus. Lymph-node biopsy provided the diagnosis of systemic Langerhans’ cell histiocytosis, for which synovial involvement remains a diagnostic challenge. Infectious diseases search and immunological tests were all negative. Skeleton radiographs, hip and cerebral magnetic resonance imaging showed, respectively, erosive arthritis of the hips and stigmates of pituitary-stalk involvement. Hip-synovium biopsy exhibited the main histological features of Erdheim–Chester disease, a non-Langerhans’ cell histiocytosis. An extensive literature review found that Langerhans’ cell histiocytosis and non-Langerhans’ cell histiocytosis (mainly Erdheim–Chester disease) coexistence is rare and synovial involvements in them even more so, these latter presenting mainly as large joint monoarthritis. The absence of typical clinical and radiographic signs of Erdheim–Chester disease led to consideration of the rheumatologic diagnosis of unclassified non-Langerhans’ cell histiocytosis (or Erdheim–Chester disease-type) oligoarthritis, associated with multiorgan Langerhans’ cell histiocytosis. The differential diagnosis of large joint erosive arthritis should then include both entities, particularly when multiorgan manifestations are present. Non-Langerhans’ cell histiocytosis synovial involvements responded poorly to vinblastine and corticosteroids, while Langerhans’ cell histiocytosis involvements responded completely but transiently. Both entities regressed under cladribine, with only mild relapses of the non-Langerhans’ cell histiocytosis involvements.     

The management of malignant pericardial effusions using permanently implanted devices.

We present a new approach utilising VATS and a Port-system (Medi-Port MP-GS9; IAP-HMP) that allows home management of pericardial effusion in patients with advanced malignancy and recurrent effusion. All patients underwent thoracoscopic pericardial window under general anaesthesia. On completion of this procedure a Port-system was permanently implanted with the reservoir body placed in a subcutaneous pocket and the outlet catheter inserted into the pleural cavity which allows aspiration of the effusion at home, on becoming symptomatic.     

Simultaneous bilateral decortications via video-assisted thoracic surgery for bilateral empyema

IntroductionBilateral empyema is a rare and life-threatening condition that is difficult to treat. We herein report a case of bilateral empyema that was treated with simultaneous bilateral decortications via video-assisted thoracic surgery (VATS).Presentation of caseA 38-year-old female complained of chest pain, dyspnea, and high grade fever lasting two weeks. Computed tomography revealed bilateral notching pleural effusion and pneumonia with atelectasis. Bilateral thoracic drainage was performed. From the right chest, white pus was drained, and Streptococcus anginosus was identified. The left drainage fluid was serous, and no bacteria were identified. We diagnosed the patient with right empyema and left para-pneumonic effusion consequent to pneumonia. Because conservative therapies could not resolve the inflammatory findings, simultaneous bilateral VATS decortications were performed. Both thoracic cavities had loculated pleural effusion. In contrast to the preoperative findings, white pus was found in not only the right, but also the left thoracic cavity. She had an uncomplicated postoperative course and recovered.DiscussionBilateral empyema that has developed to the fibrinopleural phase is difficult to treat with drains alone. Bilateral VATS decortications helped to make a definitive diagnosis and treat both sides simultaneously.ConclusionSimultaneous bilateral VATS decortications should be considered as a feasible and effective procedure for bilateral empyema that is refractory to medical treatment.     

Surgical management of effusive pericardial disease. Influence of extent of pericardial resection on clinical course

Surgical drainage for effusive pericardial disease is usually accompanied by pericardial resection to obtain tissue for analysis and to lessen the chance of recurrent effusion or late constriction. The purpose of this study was to determine the relationship between the extent of resection and the development of late complications. From 1960 through 1983, 145 patients with pure pericardial effusive disease underwent operative drainage. The effusions were malignant in 72 patients (49.7%) and benign in 73 (50.3%). The patients were divided into three groups according to the extent of resection: complete in 72 patients (49.7%), partial in 36 (24.8%), and window in 37 (25.5%). The 30 day mortality was 19.4% for patients with malignant effusions and 5.5% for those with benign effusions (p less than 0.05). All survivors had immediate improvement in symptoms. The actuarial 1 year survival rate was 23.4% (mean 4.2 months) for patients with malignant disease and 85.6% for patients with idiopathic effusions (p less than 0.001). Survival was not influenced by the extent of resection. Fifteen patients (10.3%) had late constriction or recurrent effusion. Six of these required reoperation, all after having had a window procedure. Actuarial probability of reoperation or late complication was greater with window procedures than other resections, both for all patients (p = 0.0001) and for those with benign disease (p = 0.0001). Transthoracic complete pericardiectomy is the procedure of choice for effusive pericardial disease. Subxiphoid drainage has immediate advantages for selected patients but has a statistically greater chance of late complications.     

Pericardoscopy for primary management of pericardial effusion in cancer patients.

OBJECTIVE: To assess the usefulness of pericardoscopy via the subxyphoid route for the diagnosis and treatment of pericardial effusion in patients with a history of cancer. METHODS: All patients with a recent or remote history of cancer and a pericardial effusion of unknown origin requiring drainage for diagnostic and therapeutic purposes were included in the study. They underwent complete exploration and cleansing of the pericardial cavity. Abnormal structures or deposits were biopsied under direct visual control, with a 24 cm long rigid pericardoscope. RESULTS: Between 1985 and 1998, pericardoscopy was completed in 112 of the 114 patients included (feasibility 98%), resulting in the immediate relief of symptoms in all the cases. Peri-operative mortality was 3.5%, and post-operative morbidity, 6.1%. After pericardioscopy pericardial effusions were considered malignant in 43 cases. One more case (2.3%) due to a false negative result of pericardioscopy was diagnosed during follow-up. Overall, 44 of the 114 patients (38.6%) had a malignant effusion, and 70 (61.4%), a non-malignant effusion according the follow up. In 10 of the 44 patients with a malignant pericardial effusion (22.7%), pericardoscopy corrected the results of cytological pericardial fluid studies and pericardial window biopsy, both false negatives. The sensitivities of cytological studies of the pericardial fluid, pathological examinations of pericardial window biopsy and pericardioscopy were 75, 65 and 97%, respectively. One patient with a malignant effusion had a non-symptomatic recurrence 1 month after pericardioscopy (2.3%). CONCLUSION: We recommend pericardioscopy to ascertain the malignant nature of the effusion and to diminish the recurrence rate, this avoiding repeat procedures in patients with a short life expectancy.     

Pericardial Effusion Associated With Sirolimus Use After Renal Transplantation: A Single-Center Case Series

Pericardial effusion and cardiac tamponade following renal transplantation have been recognized as a potentially serious complications associated with the use of sirolimus for immunosuppression. Our study aims to analyze the development of sirolimus-associated pericardial effusion.Patients who underwent renal transplantation at our institution between 2001 and 2014 were reviewed and the correlation between sirolimus exposure and pericardial effusion was determined. Nineteen out of 792 patients who received a renal transplant over this 14-year period (incidence 2.4%) developed symptomatic pericardial effusion (determined by the need for pericardiocentesis or a pericardial window). All patients had a pre-transplantation cardiac workup, including echocardiogram, which did not reveal the presence of pericardial effusion. Our cohort of patients is mostly male (57.9%) and Caucasian (73.7%), which is consistent with the makeup of transplant recipients at our center. The mean age was 52.42 years at the time of transplantation. The development of symptomatic pericardial effusions occurred at a mean of 5.06 (.5–9.8) years after renal transplant while on sirolimus therapy. Sirolimus levels at diagnosis were 5.19–7.47 ng/mL. No significant pericardial effusion (resulting in tamponade physiology) recurred after therapeutic intervention, including cessation of sirolimus with or without pericardial drainage. This study is the largest single-center report of the possible association between pericardial effusion in renal transplant recipients who received sirolimus. Due to the widespread use of sirolimus in organ transplantation, clinicians must remain vigilant for this potential cardiac complication.     

Successful repair of a diaphragmatic hernia through a pericardial window with acellular dermal matrix

A successful placement of a transabdominal pericardial window is associated with diaphragmatic hernia. In this paper, we present the case of a 5-month-old ex-31-weeks-premature baby who developed a symptomatic diaphragmatic hernia following a chronic pericardial effusion who was treated successfully with a laparoscopic transabdominal pericardial window. Laparoscopy and a pericardial window were used to manage the symptomatic effusion that developed following a bilateral thoracotomy and median sternotomy for the patient's massive hygroma. The patient was followed before and after pericardial drainage with a serial examination, chest radiography, and echocardiography. In addition, computerized tomography was also used for long-term follow-up following the repair of the hernia. An acellular dermal matrix was utilized for patching the hernia with a laparotomy. The abdominal approach in both operations offered direct access to the pericardial space and hernia, thereby avoiding previously operated thoraces. A subsequent follow-up at 9 months following the creation of the window suggested a recurrent tamponade physiology. Plain radiographs and an echocardiogram showed herniation into the pericardial sac. The hernia was operatively reduced and repaired with an acellular dermal matrix. Recovery and subsequent followup at 1 year revealed no hernia, full symptom resolution, and no recurrence of the pericardial effusion. A pericardial window is an effective approach for the management of chronic pericardial effusion. Diaphragmatic herniation through a pericardial window can be successfully repaired with an acellular dermal matrix.     

Usefulness of thoracoscopic surgery in the diagnosis and management of thoracic diseases

BACKGROUND: Video-assisted thoracoscopic surgery (VATS) has been recently utilised in the diagnosis and management of thoracic diseases. In this article we report our series of patients with established indications for VATS treatment. METHODS: Over the past 6 years we performed 104 VATS procedures for diagnostic and therapeutic purposes in 95 men and 39 women. The specific indications for VATS were: lung biopsy for undiagnosed diffuse lung disease, mediastinal biopsy and cysts, pleural effusion, empyema, pneumothorax and bullous lung disease, pericardial effusion and cyst, parvertebral abscess and solitary pulmonary nodules. RESULTS: There was no operative mortality. Postoperative non-fatal complications were seen in 7 cases. The overall median duration of chest tube drainage was 2.5 days and the mean postoperative stay 3 days. In diffuse lung disease a tissue diagnosis was obtained in all cases. Definitive diagnosis in the patients with undiagnosed pleural effusion was obtained in 90% of cases and the overall diagnostic rate was 98.5%. The success rate of the empyema (stage II) treatment and the therapeutic procedures is 100% after a mean follow-up of 12 months (range 6-30). Conversion to thoracotomy was needed in 6 cases. In all patients the postoperative pain was controlled with intake of non-narcotic analgesics with satisfactory results. CONCLUSIONS: VATS is worth considering and has been established as procedure of choice, with exceptional results in various chest diseases such as undiagnosed pleural effusions, recurrent, post-traumatic or complicated spontaneous pneumothorax, stage II empyema, accurate staging for lung cancer in the resection of peripheral solitary pulmonary nodule less than 3 cm, and lung biopsy for pulmonary diffuse disease.     

Pericardial effusion as a rare complication of a perforated appendicitis

IntroductionWhilst pericardial effusion is a known complication of abdominal pathology, it is rarely reported following ruptured appendicitis and even more rarely requires drainage in that situation. This work has been reported in line with the SCARE criteria (Agha et al., 2016).Presentation of caseWe report a 14-year-old male who developed extensive right hepatorenal and right paracolic abscesses, bilateral pleural effusions and a large pericardial effusion following laparoscopic appendicectomy. Due to the size of the effusion, thoracoscopic pericardotomy was required.DiscussionPericardial effusion is a very rare complication of advanced appendicitis despite a demonstrable connection between the retroperitoneum and the mediastinum. Only two cases were reported in our literature search. There is no consensus as to whether percutaneous drainage or pericardiotomy is the treatment of choice.ConclusionThe report is presented as a reminder of a rare complication of a common general surgical condition.     

Clinical experience with subxiphoid drainage of pericardial effusions

To assess the effectiveness of subxiphoid pericardial tube drainage for treatment of pericardial effusion, we reviewed 41 consecutive patients who underwent this procedure during a 14-year period. The patients ranged in age from 7 months to 75 years. All were symptomatic preoperatively. The diagnosis of pericardial effusion was confirmed by echocardiogram in all but 2 patients. Eight patients had acute pericardial tamponade. Subxiphoid pericardial drainage was performed under general (n = 35) or local anesthesia (n = 6). A portion of the anterior pericardium was excised in each patient. There were no perioperative deaths. Thirty-day mortality was 19.5%; there were five late deaths. All deaths were unrelated to pericardial effusion or to the operation. One patient had recurrent effusion requiring pericardiocentesis on the 21st postoperative day. He died five days later of extensive lymphoma. Twenty-eight patients were followed from 1 month to 10 years; mean follow-up was 31.5 months. None developed recurrent effusion or pericardial constriction. We conclude that subxiphoid pericardial drainage is effective for treatment of pericardial effusion.     

Cardiac metastasis from gallbladder carcinoma

INTRODUCTIONPrimary gallbladder carcinoma is a rare aggressive neoplasm of elderly with poor prognosis. The tumour is often unresectable at the time of diagnosis. Metastasis to heart is rare and only 6 cases have been reported in the indexed literature. We herein report a case of gallbladder carcinoma metastasizing to heart.PRESENTATION OF CASEA 54 year old female presented with dyspnoea and chest pain with past history of radical cholecystectomy and palliative chemotherapy for adenocarcinoma of gallbladder. Chest X-ray showed cardiomegaly and 2-D ECHO revealed features of tumour deposits on the surface of myocardium and malignant pericardial effusion. Mini-thoracotomy and pericardial window procedure was done to relieve distressing symptoms and biopsy of pericardial tissue revealed metastatic adenocarcinoma. In spite of intensive care, patient succumbed to disease in the post-operative period.DISCUSSIONPrimary adenocarcinoma of gallbladder is the most common malignancy of biliary tract and fifth most common malignancy of gastro-intestinal system with dismal prognosis. It most commonly spreads to liver and regional lymph nodes, very rarely distant metastasis occurs to kidney, adrenal, thyroid and bones as reported in the literature. Metastasis to heart presents with symptoms of cardiac failure due to pericardial effusion. Even with intensive care patients will invariably succumb to the disease.CONCLUSIONMetastatic spread to heart from carcinoma of gallbladder is very rare. Should a patient be suspected of or an operated case of gallbladder carcinoma present with symptoms of congestive heart failure and massive pericardial effusion, cardiac metastasis should be considered.     

Single-incision thoracoscopic surgery of pleural effusions for diagnosis and treatment

Background

Several procedures such as video-assisted thoracoscopic surgery (VATS) are used to make a definite diagnosis in recurrent pleural effusions so that appropriate treatment can be arranged. Single-incision thoracoscopic surgery (SITS) is the most appropriate procedure that can be used for this purpose. The contribution of SITS to diagnosis and treatment is evaluated in this study that we conducted using a single thoracoport in patients with pleural effusion.

Methods

Nineteen consecutive patients with pleural effusion that was recurrent or refractory to medical treatment were included in the study to be diagnosed and treated with SITS. Thoracentesis was performed and pleural fluid samples obtained in all patients before the procedure. Pleural effusion drainage was performed from the 11-mm single skin incision by using a 10.5-mm single thoracoport, and biopsy or talc pleurodesis was performed in the same session when needed.

Results

The median age of the patients was 56.68 ± 3.05 years and there were 11 males and 8 females. The total amount of fluid drained by SITS was 1,436 ± 227 mL and the surgery lasted 81.05 ± 5.36 min. In addition, partial decortication and/or deloculation were performed in six patients and talc pleurodesis in nine patients. Fifteen patients were diagnosed with benign and four patients with malignant pleural effusion by thoracentesis, while nine patients were diagnosed with benign and ten patients with malignant pleural effusion by SITS. We therefore had six cases diagnosed as benign with thoracentesis who were diagnosed with malignant disease after SITS.

Conclusions

SITS presents both diagnosis and treatment options together for pleural effusions. We believe SITS should be preferred to conventional three-port VATS to minimize the spread of infection and tumor cells to the chest wall in infectious and malignant diseases.     

Laparoscopic transabdominal pericardial window

Creation of a transabdominal transdiaphragmatic pericardial window for life-threatening recurrent pericardial effusion has proved to be a safe minimally invasive technique. By inducing adequate pericardial sac decompression while avoiding single-lung ventilation and thoracic drainage in severely ill patients, it provides anatomopathologic diagnosis and can direct further therapeutic measures. The transabdominal approach improves postoperative recovery dramatically by limiting postoperative pain and prevents sometimes invalidating intercostal neuralgia. Transabdominal pericardial sac fenestration should be part of the armamentarium used by every minimally invasive surgeon.     

Video-assisted thoracoscopic surgery in the diagnosis and treatment of chest diseases

Video-assisted thoracoscopic surgery (VATS) has been used recently in the diagnosis and management of thoracic diseases. In this report, VATS experience with 95 cases, focusing on indications, surgical procedures, complications, and failure rates, are reviewed. Over the past 5 years, 95 VATS procedures for diagnostic and therapeutic purposes were performed in 59 men and 36 women. The specific indications for VATS were lung biopsy for undiagnosed diffuse lung disease (48), mediastinal biopsy (12) and cyst (2), pleural effusion (10), empyema (5), pneumothorax and bullous lung disease (6), pericardial effusion (2) and cyst (2), paravertebral abscess (2), solitary pulmonary nodules (3), and thoracic trauma (3). In all patients, postoperative pain was controlled with non-narcotic analgesics and was measured according to the visual analogue scale (VAS). There was no surgical mortality. Postoperative nonfatal complications were seen in seven cases (7.5%). The overall median duration of chest tube drainage was 2.7 days and the mean postoperative hospital stay was 3 days. For diffuse lung disease, a tissue diagnosis was obtained in all the cases. Definitive diagnosis in the patients with undiagnosed pleural effusion was obtained in 90% of cases, and the overall diagnostic rate was 98.5%. The success rate of the therapeutic procedures was 100% after a mean follow-up of 12 months (range, 6-30 months). Conversion to thoracotomy was needed in six cases (6.6%). All patients scored postoperative pain <50% according to the VAS. Video-assisted thoracoscopic surgery should be considered as a procedure of choice, with exceptional results in the following chest diseases: (a) undiagnosed pleural effusions; (b) recurrent, post-traumatic, or complicated spontaneous pneumothorax; (c) stage II empyema; (d) accurate staging of lung cancer; (e) emergency traumatic injuries of the chest; (f) peripheral solitary pulmonary nodule <3 cm; and (g) lung biopsy for pulmonary diffuse disease.     

Cardiovascular changes during drainage of pericardial effusion by thoracoscopy

Background. Cardiovascular changes during drainage of pericardialeffusion are not well understood, and most studies are of systemiceffects and not of right ventricular performance. Thoracoscopyis not widely used to drain pericardial effusions because ofhaemodynamic changes in relation to the use of single lung ventilation. Patients and methods. We studied 16 patients undergoing partialpericardiectomy for pericardial effusion, using videothoracoscopywith a low-pressure pneumothorax (6 mm Hg). Cardiac outputwas measured by thermodilution with the patient anaesthetizedin the supine position before the procedure; in the right lateralposition after a low-pressure pneumothorax had been established;and after drainage of the pericardial effusion. Results. Before the procedure, cardiac output was low and centralvenous pressure and pulmonary artery occlusion pressure wereincreased. Systemic vascular resistance and arterial blood pressurewere within normal limits. Cardiac filling pressure and pulmonaryarterial pressure increased during the pneumothorax. After thedrainage cardiac index increased and systemic and pulmonaryvascular resistances were reduced. Conclusions. Pericardial effusion reduces right ventriculardistensibility, right and left systolic ventricular function,and cardiac output. Anaesthesia with mechanical ventilationand a low-pressure pneumothorax do not affect the circulationgreatly. Drainage of the pericardial effusion allows cardiacdistensibility to increase and cardiac performance changes toallow increased ejection. Br J Anaesth 2004; 92: 89–92