Optimal duration of preoperative anti-helminthic therapy for pulmonary hydatid surgery

Pulmonary hydatid cyst: Review of literature

Echinococcosis is a rare infectious disease in human being that occurs by the larval stages of taeniid cestodes of the genus Echinococcus. Human cystic echinococcosis is the most common presentation. The liver is the most common site of echinococcal cyst, followed by the lungs. The symptoms of lung infestation lead to sudden onset of chest pain, cough, fever, and hemoptysis after a cyst rupture. The diagnosis is confirmed by radiology supplemented with serology. Chest X-ray and computer tomography of chest is the principal investigation for pulmonary hydatid cyst (PHC). The treatment of PHCs is either pharmacotherapy and/or surgery. Surgical intervention is the most preferred treatment of choice; pharmacotherapy is useful in selected patients. Pharmacotherapy includes oral administration of benzimidazoles group of drugs like mebendazole or albendazole.

Cystic pulmonary hydatidosis

Cystic echinococcosis (CE) is a zoonotic parasitic disease caused by the larval stages of the cestode Echinococcus granulosus. Worldwide, pulmonary hydatid cyst is a significant problem medically, socially, and economically. Surgery is the definitive therapy of pulmonary hydatidosis. Benzimidazoles may be considered in patients with a surgical contraindication. This review will focus on pathogenesis, lifecycle, clinical features, and management of pulmonary hydatid disease.

Boiling sheep liver or lung for 30 minutes is necessary and sufficient to kill Echinococcus granulosus protoscoleces in hydatid cysts

Proper disposal of carcasses and offal after home slaughter is difficult in poor and remote communities and therefore dogs readily have access to hydatid cysts containing offal from livestock, thus completing the parasite cycle of Echinococcus granulosus and putting communities at risk of cystic echinococcosis. Boiling livers and lungs which contain hydatid cysts could be a simple, efficient and energy- and time-saving way to kill the infectious protoscoleces. The aim of this study was to provide precise practical recommendations to livestock owners. Our results show that boiling the whole sheep liver and/or lung, with single or multiple hydatid cysts, for 30 min is necessary and sufficient to kill E. granulosus protoscoleces in hydatid cysts. Advertising on this simple rule in at-risk communities would be an efficient and cheap complement to other veterinary public health operations to control cystic echinococcosis.

Predictive factors of recurrence after surgical treatment for liver hydatid cyst

BACKGROUND

Hydatid recurrence after surgery is about 10 %. It still constitutes a problem both in terms of pathophysiology and management of recurrence.

AIM

The aim of this study was to assess the management of abdominal hydatid recurrence after surgical treatment for liver hydatid cyst and to identify the predictive factors of recurrence.

METHODS

We retrospectively included all the patients operated on between January 1, 2008, and December 31, 2012, in the Department "B" of Charles Nicolle Hospital (Tunisia), for abdominal hydatid recurrence. Sixteen men and 33 women, with a median age of 45 years, were included. For all patients, clinical variables and morphological and intra-operative characteristics concerning both the hydatid cysts previously treated and the recurrent cysts were collected. Surgical procedures were recorded as well as the immediate and long-term outcomes. Comparative studies were performed: "extrahepatic recurrence versus No," "peritoneal recurrence versus No," and "open approach versus laparoscopic approach." A univariate analysis followed by a multivariate analysis was carried out to determine predictive factors of hydatid recurrence.

RESULTS

Comparative analysis showed that laparoscopic approach, segments II and III localization, and postoperative complications during the first intervention were associated with a greater number of both peritoneal and extrahepatic hydatid recurrence. Multivariate analysis retained the laparoscopic approach as a predictive factor of both peritoneal recurrence (OR 5.5; 95 % CI 1.56; p = 0.008) and abdominal extrahepatic recurrence (OR 3.54; 95 % CI 1.08; p = 0.035).

CONCLUSION

Laparoscopic approach for the treatment of liver hydatid cysts was associated with a higher rate of extrahepatic and peritoneal recurrence than open.

Endobronchial echinococcosis presenting as non-resolving pneumonia

Hydatid disease of the lungs is caused by larval cysts of the Echinococcus tapeworm. Pulmonary cysts may occasionally invade bronchi or pleura as a result of coughing, trauma, or elevated intra-abdominal pressure. We present the case of a patient evaluated for non-resolving pneumonia whose radiographic and bronchoscopic findings were strikingly similar to those seen in pulmonary tuberculosis with endobronchial invasion; he was ultimately diagnosed with pulmonary echinococcosis. This case underscores the importance of considering unusual diagnoses even when typical features of more common conditions are present.

Laparoscopic treatment of hepatic hydatid disease

BACKGROUND

  Hepatic hydatid disease is now rare in Australasia. However, it remains a significant problem in endemic areas. Many cases are now managed using minimally invasive techniques and this paper reviews the current status of laparoscopic approaches to hepatic hydatid disease.

METHODS

  A Medline data search was performed using the search terms of Ecchinococcos, laparoscopy, hepatectomy and pericystectomy. All publications from all publication years, including foreign language publications, were included.

RESULTS

  Eight series have been published comprising five or more patients, with most utilizing techniques of laparoscopic cystectomy. All series managed Gharbi cyst types I-IV, and median operative times were between 60 and 82 min. Seven conversions were reported (3%) for problems with access or bleeding. There was one reported fatality, and between 5% and 45% (median 13%) of patients developed complications. Three cases of anaphylaxis were reported and 14 cases of bile fistula were reported (median incidence: 6%). Hospital stays were between 3 and 10 days (median stay: 3.5 days). Two series report recurrences (recurrence rates of 3% and 4%) and these were in patients not treated with preoperative albendazole.

CONCLUSION

  Laparoscopic surgical techniques have been successfully applied to the treatment of hepatic hydatid cysts. While the uptake of these procedures is limited to areas of high prevalence and units with a specific interest, laparoscopic surgery is now one of the management options available to treat hepatic hydatid disease.