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Case Report - (2015) Volume 3, Issue 4

Surgical Management of Cardiopericardial Hydatid Disease: A Tunisian Center Experience

Ben Jmaa Hela1*, Bouassida Abir1, Triki Faten2, Dammak Aiman1, Hentati Abdessalem1, Ben Jmaa Tarak3, Souissi Iheb4, Masmoudi Sayda1, Elleuch Nizar1, Kammoun Samir2, Ben Jmaa Mounir3, Karoui Abdelhamid4 and Frikha Imed1
1Department of cardiovascular and thoracic surgery, Habib Bourguiba Hospital, Sfax, Tunisia
2Department of Cardiology, Hedi Chaker Hospital, Sfax, Tunisia
3Department of Infectious Diseases, Hedi Chaker Hospital, Sfax, Tunisia
4Department of Anesthesiology, Habib Bourguiba Hospital, Sfax, Tunisia
*Corresponding Author: Ben Jmaa Hela, Department of cardiovascular and thoracic surgery, Habib Bourguiba Hospital, Sfax 3029, Tunisia, Tel: 0021696704740 Email:

Abstract

Introduction: Cardiac hydatid disease is a rare, but it is potentially a life-threatening pathology. It has fatal complications such as valvular dysfunction, free wall rupture, embolism, anaphylactic reactions, conduction disturbances, or congestive heart failure.

Methods: We report 12 cases of cardiopericardial hydatid disease that underwent operation in our institution between January 1998 and December 2014, and we review our results. The mean age was 31.83 years and it ranges of 11 to 65 years. Male to female ratio was 1.

The diagnosis of hydatid disease was confirmed by transthoracic echocardiography in all patients. The cyst was located in the left ventricular free wall in 5 cases, the right ventricular free wall in 1 case, the interventricular septum in 3 cases, the interatrial septum in 2 cases, and the pericardium in 1 case.

Three patients had multiple organ hydatidosis: in the interatrial septum and the two lungs in one case; in the left ventricle, the left lung, the liver, and the peritoneum in 1 case; and in the left ventricle, the left lung, the liver and the breasts in 1 case.

All of our patients underwent surgery. The patients with cardiac cysts were operated under sternotomy and standard cardiopulmonary bypass with antegrade cardioplegia and aortic cross-clamping.

The patient with pericardial hydatidosis was operated under posterolateral thoracotomy and without cardiopulmonary bypass.

Results: The postoperative period was uneventful in all our patients. We didn’t have any cardiac hydatidosis recurrence in the follow-up of our patients. Only one patient was operated two years after cardiac surgery for recurrence of pulmonary cysts.

Conclusion: Surgery should be recommended in all cases of cardiopericardial hydatid disease in order to avoid their complications.

Keywords: Cysts; Hydatidosis; Heart; Pericardium; Echocardiography; Surgery

Introduction

Hydatid disease is a parasitic infection caused by the development of the larval form of the Teania of Echinococcus granulosus.

This disease is endemic and constitutes a significant public health problem in the Mediterranean countries including Tunisia [1].

We aimed to report our experience, review epidemiological characteristics and surgical treatment of cardiopericardial hydatidosis, and to determine our short and long-term outcomes.

Methods

We reviewed all patients who underwent surgery for cardiopericardial hydatid cyst in our institution during the period between January 1998 and December 2014. The number of patients was twelve: 6 male and 6 female. The mean age was 31.83 years with a range between 11 to 65 years.

Diagnosis was fortuitous in 5 cases; and it was revealed by dyspnea and chest pain in 5 cases. Complications were revealing in 2 cases: a pulmonary embolism in 1 case and a lower limb ischemia in 1 case.

Physical examination was normal in 10 patients. It found a pulmonary edema in 1 patient, and a lower limb ischemia in 1 patient.

All the patients underwent transthoracic echocardiography which revealed the cystic mass and its localization.

Pericardium was involved in 1 case, left ventricle in 5 cases, right ventricle in 1 case, interatrial septum in 2 cases, and the interventricular septum in 3 cases. Eleven patients underwent surgery through a median sternotomy and cardiopulmonary bypass. The patient with pericardial location was operated under posterolateral thoracotomy.

The surroundings of the cysts were wrapped to prevent their contamination. The left and right ventricle free wall cysts were opened and germinative membranes were removed. Then, a capitonage was performed, and the cavity was closed with multiple sutures.

The patients with interventricular septum cyst underwent excision of the cystic mass through a right atriotomy in 2 cases, and through a ventriculotomy in 1 case. Then, the septum was repaired by a direct suture in 2 cases, and by a synthetic patch in 1 case (Figure 1).

tropical-medicine-surgery-septal

Figure 1: Suture of the septal defect by a synthetic patch.

The patient with a pericardial cyst underwent a cystectomy under a posterolateral thoracotomy without cardiopulmonary bypass.

The patients with interatrial septum cyst were accessed by a right atriotomy (Figures 2 and 3). After cystic resection, the interatrial septum was repaired by a direct suture in the two cases.

tropical-medicine-surgery-Intraoperative

Figure 2: Intraoperative view showing a cyst of the interatrial septum through a right atriotomy (arrow).

tropical-medicine-surgery-Macroscopic

Figure 3: Macroscopic aspect of the cyst.

Three patients had multi-organ hydatidosis involving the heart: in the interatrial septum and the two lungs in one case; in the inferior wall of the left ventricle, the left lung, the liver, and the two breasts in one case (Figures 4 and 5); and in the left ventricle, the left lung, the liver, and the peritoneum in one case (Figures 6 and 7).

tropical-medicine-surgery-pericardium

Figure 4: Intraoperative view of the left ventricular cyst protruding into the pericardium (arrow).

tropical-medicine-surgery-hydatid

Figure 5: Intraoperative view of a removal of hydatid cyst from the breast.

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Figure 6: thoracic CT scan revealing a hypodense mass in the left ventricle (arrow).

tropical-medicine-surgery-peritoneum

Figure 7: Abdominal CT scan showing cysts in the liver and the peritoneum.

The hydatid location in the heart, the lungs, and the breasts were operated in a single session under sternotomy.

Results

Albendazole was used in the postoperative period in all patients and carried out for 6 months. The postoperative period was uneventful in all our patients and they were discharged from hospital without complications.

During this follow-up period, an echocardiography was performed yearly in each patient. The average duration of follow-up was 99.45 months, and it ranges from 21 to 213 months.

We did not observe any late cardiac problems or recurrence of the cardiac cysts. One patient was operated two years later under thoracotomy for recurrence of right pulmonary cysts. Results are shown in Table 1.

Case Cyst localization Surgical approach Operation Short term result Long term result
1 Left ventricle wall Left ventriculotomy Cystectomy-capitonage and suture of the ventriculotomy Uneventful No hydatid recurrence
2 Interatrial septum and lungs Right atriotomy Cystectomy, suture of the interatrial septum and resection of the pulmonary cysts Uneventful Recurrence of the pulmonary cysts
3 Left ventricle wall, left lung, liver and peritoneum Left ventriculotomy Cystectomy-capitonage and suture of the ventriculotomy and resection of the pulmonary cysts Uneventful No hydatid recurrence
4 Left ventricle wall Left ventriculotomy Cystectomy-capitonage and suture of the ventriculotomy Uneventful No hydatid recurrence
5 Pericardium Thoracotomy and pericardotomy Cystectomy and partial pericardectomy Uneventful No hydatid recurrence
6 Right ventricle wall Right ventriculotomy Cystectomy-capitonage and suture of the ventriculotomy Uneventful No hydatid recurrence
7 Left ventricle wall Left ventriculotomy Cystectomy-capitonage and suture of the ventriculotomy Uneventful No hydatid recurrence
8 Inter-ventricular septum Right ventriculotomy Cystectomy and suture of the inter-ventricular septum Uneventful No hydatid recurrence
9 Inter-ventricular septum Right atriotomy Cystectomy and suture of the inter-ventricular septum Uneventful No hydatid recurrence
10 Left ventricle wall, left lung, liver, and breasts Left ventriculotomy Cystectomy-capitonage and suture of the ventriculotomy and resection of the pulmonary and the breasts cysts Uneventful No hydatid recurrence
11 Inter-ventricular septum Right atriotomy Cystectomy and suture of the septal defect by a synthetic patch Uneventful No hydatid recurrence
12 Inter-atrial septum Right atriotomy Cystectomy and suture of the inter-atrial septum Uneventful No hydatid recurrence

Table 1: Analysis of cardio-pericardial hydatid cyst cases.

Discussion

Echinococcosis is a tissue parasitic infestation that leads to a significant health problem in undeveloped and developing countries [2]. It is common in several regions of the world, for example, the Mediterranean countries, the Middle East, South America, and East Africa [3].

In human beings, it is caused by the larva of Echinococcus granulosus. The sheep is the intermediate host and the dog is the definitive host, but man is a common accidental host [4].

The liver and the lungs are the most common sites of infection [5]. Cardiac echinococcosis is not frequent, accounting for only 0.5% to 2% of all hydatid infestations [2,6]. The left ventricle is involved most frequently (55-60%) [4]. The right ventricle is involved in 10-15% of all cardiac cysts [7].

Involvement of the interventricular septum is reported in 5-9% of cardiac cases [4]. Distribution in the left atrium occurs in 8% of cardiac cases [2]. The interatrial septum is involved in 2% of cases [8]. The first case reported in the literature was in 1964 [9]. Then, a few cases were reported [10].

In our series, the left ventricle was the most-involved (5 cases). We reported also three cases located in the interventricular septum, two cases in the interatrial septum, and one case in the right ventricle.

Isolated pericardial location without cardiac involvement is exceptional [11]. This location was observed in only one of our patients.

Valvular cysts are unusual. Sensoz Y et al. reported a case of a hydatid cyst located in the right ventricle involving the posterior papillary muscle requiring tricuspid valve excision and its replacement with a bioprosthesis [6].

Aksakal E et al. presented the first case of congestive heart failure and mitral stenosis because of the involvement of the posterior mitral leaflet by a hydatid cyst measuring 2.7*2.2 cm [12].

Multivisceral echinococcosis with cardiac involvement is exceptional [13]. We reported three cases of multi-organ involvement, in which the cardiac and the pulmonary location were operated in a single session via a sternotomy. Bilateral cysts of the breasts were also resected in the same operation in one patient.

Clinical signs and symptoms vary according to the number, the size, and the site of the cysts [10]. They are usually asymptomatic. Chest pain, palpitations, and dyspnea may be revealing symptoms.

Five of our patients were asymptomatic and the diagnosis was fortuitous after chest radiography. Five patients had dyspnea and thoracic pain.

Cardiovascular complications are arrhythmia, valvular dysfunction, heart failure, pulmonary or systemic embolism, pulmonary hypertension, and anaphylactic reactions [4]. These complications can lead to sudden death. Rupture is also a life-threatening complication of cardiac hydatid cyst. It is usually intracavitary in the right-sided cysts, and intrapericardial in the left-sided cysts.

In our series, we observed one case of pulmonary embolism complicating an interatrial septum cyst, and one case of lower limb ischemia by embolism into the femoral artery.

Echocardiography, computerized tomography, and magnetic resonance imaging are valuable non-invasive diagnostic tools for cardiac hydatid disease [14]. Serologic tests are also a helpful supplement.

The diagnosis was made by trans-thoracic echocardiography in all our patients. Due to these fatal consequences, it should be treated by surgical excision under cardiopulmonary bypass as soon as it is diagnosed, even in asymptomatic patients [6,8,15,16]. It is important to consider the location, the number and the size of the cysts when choosing the surgical approach which must be performed carefully, given the risk of embolism and anaphylaxis that surgery may bring [3,10].

In case of involvement of the heart and the lungs, cardiac and lung hydatid cyst one-stage operation has a lot of advantages: the period of rehabilitation and, as well as the overall treatment costs and the hospital stay, are considerably reduced [17]. Median sternotomy is suitable for this treatment because it offers an excellent access to the heart and the lungs, with less postoperative pain than thoracotomy [17]. That’s why we opted for combined surgery through sternotomy in our three patients with multiorgan involvement.

Neoadjuvant and medical treatment with albendazole, allows preoperative sterilization of the cyst and a lower risk of intraoperative dissemination. Some authors have suggested that postoperative treatment also allows a reduction of recurrences [18]. We also used albendazole in all of our patients in pre and postoperative period for 6 months.

In the long-term echocardiographic controls, we did not observe any recurrence in the cardiac location. Only one patient was reoperated under thoracotomy for recurrence in the pulmonary location.

Conclusion

Cardiac hydatid cysts are rare. They are usually asymptomatic for a long period. So, they must be kept in mind in patients in endemic countries.

Surgical treatment is necessary as soon as the diagnosis is established because there is a risk for rupture, dissemination to the adjacent tissue, embolism, or anaphylactic shock [6].

References

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Citation: Jmaa Hela B, Abir B, Faten T, Aiman D, Abdessalem H, et al. (2015) Surgical Management of Cardiopericardial Hydatid Disease: A Tunisian Center Experience. Trop Med Surg 3: 200.

Copyright: © 2015 Hela, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution and reproduction in any medium, provided the original author and source are credited.
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