Pericardioperitoneal shunt: further development of the procedure using VATS technique

Pericardiectomy and Pericardial Window for the Treatment of Pericardial Disease in the Contemporary Era

PURPOSE OF REVIEW

To summarize the contemporary practice of pericardiectomy and pericardial window. We discuss the indications, preoperative planning, procedural aspects, postprocedural management, and outcomes of each procedure.

RECENT FINDINGS

Surgical approaches for the treatment of pericardial disease have been around even before the emergence of cardiopulmonary bypass. Since the forthcoming of cardiopulmonary bypass, there have been significant changes in the epidemiology and diagnostic approach of pericardial diseases as well as advancements in the surgical techniques and perioperative management used in the care of these patients. Pericardiectomy has an average mortality of almost 7% and is typically performed in patients with advanced symptoms from constrictive pericarditis and relatively few comorbidities. Pericardial window is a safe procedure for the treatment of pericardial effusion that can be performed with different approaches.

Transabdominal ligation of the thoracic duct with pericardial-peritoneal shunting in a case of primary idiopathic chylous pericardial effusion

Primary chylous pericardial effusion is a rare entity with few cases reported so far. We report a case of idiopathic etiology in a previously healthy 16-year-old boy. The patient presented with intermittent chest pain and dizziness caused by a chronic pericardial effusion. An echocardiogram revealing a pericardial effusion and open pericardiocentesis with a drainage of approximately of 500 ml of chylous fluid established the diagnosis. Patient had no history of trauma, cardiac surgery, central insertion of subclavian catheters or blunt injury. Computed tomography ruled out malignancies in the abdomen and chest. Clinical, laboratory and radiological investigations for the possible underlying cause of the condition were not determined. Management with a dietary regimen consisting of a medium-chain triglyceride-rich diet, octreotide pharmacological treatment and initial subxiphoid resection with pericardial tube drainage was unsuccessful. Surgical approach was required consisting of pericardio-peritoneal window with trans-abdominal ligation (clipping) of the thoracic duct above the diaphragm. Postoperative outcome was uneventful and there was a rapid recovery after surgical management.

Mediastinoscope-controlled parasternal fenestration of the pericardium: definitive surgical palliation of malignant pericardial effusion

Background

The tumorous infiltration or carcinosis of the pericardium could cause pericardial effusion in up to one-third of cases of malignancy, thus potentially interfere with the otherwise desirable oncological treatment. The existing surgical methods for the management of pericardial fluid are well-established but are not without limitations in the symptomatic relief of malignant pericardial effusion (MPE). The recurrence rate ranges between 43 and 69% after pericardiocentesis and 9 to 16% after pericardial drainage. The desire to overcome relative limitations of the existing methods led us to explore an alternative approach.

Methods

The standard armamentarium of the Carlens collar mediastinoscopy procedure was utilized in a Chamberlain parasternal approach of the pericardial sac. The laterality of approach was decided based upon the pleural involvement, as tumor-free pericardiopleural reflection is required. A pericardio-pleural window at least 3 cm in diameter was created. From January 2000 to December 2009, 22 cases were operated on with mediastinoscope-controlled parasternal fenestration (MCPF). Considering the type of the primary tumor, there were 11 lung cancer, 6 breast cancers, 2 haematologic malignancies and in 3 patients the origin of malignancy could not be verified.

Results

There were no operative deaths. We lost one patient (4.5%) in the postoperative hospital period. All of the surviving patients had a minimum of 2 months of symptom-free survival. We detected transient recurrence of MPE in one patient (4.5%) 14 days after the MCPF, which disappeared spontaneously after 24 hours.

Conclusion

The MCPF offers a real alternative in certain cases of pericardial effusion. We recommend this method especially for the definitive surgical palliation of MPE.

[Management of malignant pericardial effusion with parasternal fenestration]

Numerous methods exist for the treatment of pericardial effusions. These methods, however, can be applied with limitations only for long-term eradication of malignant pericardial effusion. Lately, several new methods, including minimally invasive procedures, have been published, and the VATS technique has become fairly popular. This technique needs special instruments and single lung ventilation, which is relatively risky in case of contralateral malignancy. We apply a new and simple minimally invasive fenestration method using the well-known approach of the parasternal mediastinoscopy by Stemmer. No recurrence of pericardial effusions was noted in long-term follow-up. In the past 10 years 73 patients were treated for pericardial effusion in our department and 22 pericardium fenestrations have been performed with parasternal approach. This method is recommended for the definitive treatment of pericardial effusion with malignant origin.

[Pericardioperitoneal shunt in the treatment of pericardial effusions in neoplasic patients]

Neoplasia-related pericardial effusions are a frequent finding and pose diagnostic and therapeutic challenges. Although they appear in the context of an underlying neoplastic disease, 50% of these effusions have a benign etiology; they are indirectly caused by the tumor. The remaining cases (neoplastic pericardial effusions - NPE) derive from extension of tu- moral disease to the epi and/or pericardium and have, therefore, a worst prognosis. Despite several treatment options, the lack of appropriate guidelines difficults the evaluation of their efficacy and safety. Pericardioperitoneal shunt (PPS) is a surgical pericardial drainage method, which has demonstrated its usefulness in the management of NPE. At the CHC, this procedure is performed under videoassisted toracoscopic guidance (VATS). During the last 8 years, 18 patients have been submitted to this therapeutic option, which proved to be safe, efficacious and with low morbimortality rates.