A Cardiac Hydatid Cyst Involving the Basal Interventricular Septum Causing Biventricular Outflow Tract Obstruction

Abstract

We report a case of a 37-year-old sheep-raising man with a cardiac hydatid cyst involving the basal interventricular septum causing biventricular outflow obstruction. He suffered from multi-organ hydatidosis and underwent cerebral hydatid cyst extirpation and right nephrectomy for renal echinococcosis. The diagnosis of the cyst was obtained by echocardiography and magnetic resonance imaging. The diagnosis was confirmed by positive hemagglutination test. He was operated on for cardiac hydatid cyst using enucleation and capitonnage procedure under extracorporeal circulation. The morbidity was complete atrioventricular block, necessitating VDD pacemaker implantation. This was followed by medical treatment with albendazole (400 mg/day).

Cardiac Tamponade via a Fistula to the Pericardium From a Hydatid Cyst: Case Report and Review of the Literature

“…During the usually long latency period between infection and manifestation of the disease (1-5 years), the cyst may calcify and die, or it may continue to grow in situ (1,2). A developing cyst in the myocardium is liable to rupture into the heart chambers, or it may cause life-threatening complications such as valvular obstruction, pseudoischemic changes on electrocardiography, cardiac dysrhythmias, hemodynamic disturbances, pulmonary or systemic embolization as a result of cyst rupture, anaphylactic shock, pericarditis, cardiac tamponade, constrictive pericarditis, or sudden death (2,15). Nearly 10% of all cases of myocardial HC rupture into the pericardium, and most of these events are fatal (2,16,17).…”

Progress of Untreated Massive Cardiac Echinococcosis—Echocardiographic Follow‐Up

“…Cardiac hydatid cyst should be considered in the differential diagnosis of patients with angina like pain and dyspnea in endemic areas. In review of the literature there have been scarce reports in respect of large size and LV location 6–8 . One of the important aspect of our case is being a invasive gigantic mass with protruding effect to LV cavity causing complaint of insidious dyspnea.…”

“…In review of the literature there have been scarce reports in respect of large size and LV location. [6][7][8] One of the important aspect of our case is being a invasive gigantic mass with protruding effect to LV cavity causing complaint of insidious dyspnea. Dyspnea is often moderate, resulting from exertion as in our case; it is rarely severe.…”

Paroxysmal Ventricular Tachycardia Due to Interventricular Hydatid Cyst

“…Symptoms are usually nonspeci c. Hydatid cyst can occur in the chambers of the heart, interventricular septum, pulmonary artery, and pericardium. [2][3][4][5][6][7] It can appear as one or multiple masses. 8,9 Since hydatid cyst in the right ventricle is usually subendocardial in location, the risk of cyst rupture into the ventricle is high.…”

“…Sometimes angina pectoris, ECG ndings of ischemia, conduction abnormality of the atrioventricular (AV) node, and complete AV block may occur in patients with hydatid cyst of the heart. 5,[11][12][13][14] Weinberg complement xation, IgE to echinococcosis, and ELISA tests for echinococcosis are used to evaluate and differentiate the cardiac masses determined by ECG and MRI. The de nitive treatment is surgery; however, there are reported cases of cyst disappearance with albendasol.…”