scholarly journals Infection status of hydatid cysts in Iran: A review

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Faham Khamesipour ◽  
Shadan Shojaat ◽  
Bahareh Basirpour ◽  
Parya Kheiri ◽  
Sana Afzal ◽  
...  

Cystic echinococcosis (CE) is a significant zoonosis, and is endemic in some parts of the world including Iran. Hydatid cyst in Iran has been studied from different aspects and has been reported from most parts of the country. But there is no comprehensive report on the appearance of pollution in the country. This study was conducted to investigate the approximate status of infection from 1985 to 2019. In this review article, various reports on hydatid cysts were collected from 1985 to 2019. According to three criteria, i.e. the rate of infection of dogs with adult worms, the rate of infection of livestock, and the rate of infection of humans with hydatid cysts, the articles were summarized and presented to approximate the status of infection in Iran. In this study, the average infection among 11593 dogs was estimated to be 11.28%. In the case of livestock, according to this review, the maximum infection of sheep was in Ardebil with 74.4%, goats and cattle were in Sari with 37.8% and 40.1%, camels in Khorasan Razavi with 40.40%, and Tabriz had the highest amount of infection in buffaloes. Out of 70907 people tested, the summary of seroepidemiological studies shows that the average infection in humans is 5.57%. The information obtained from this review article shows that despite the efforts of health organizations and veterinary organizations, the rate of infection in Iran is still high compared to some countries.

2019 ◽  
Vol 57 (1) ◽  
pp. 108-114 ◽  
Author(s):  
Mauricio Jiménez ◽  
Caroll Stoore ◽  
Christian Hidalgo ◽  
Felipe Corrêa ◽  
Marcela Hernández ◽  
...  

Cystic echinococcosis is a worldwide zoonosis caused by the cestode Echinococcus granulosus. Two types of hydatid cysts occur in intermediate hosts: fertile cysts that generate protoscoleces from the germinal layer of the cyst, and infertile cysts that do not produce protoscoleces and are unable to continue the life cycle of the parasite. The adventitial layer, a host-derived fibrous capsule surrounding the hydatid cyst, is suggested to play an important role in local immune regulation during infection and in fertility of the cysts. Fasciola hepatica, another important parasite of cattle, induces a characteristic Th2-like immune response that could modulate the immune response against E. granulosus. Natural co-infection of both parasites is common in cattle, but no reports describe the local immune response against E. granulosus with F. hepatica infection in the same host. This study analyzed the number and distribution of T and B cells in the adventitial layer of liver and lung cysts and the relationship with cyst fertility and F. hepatica co-infection. T lymphocytes were the predominant cell type in the adventitial layer of infertile hydatid cysts and were more numerous in infertile hydatid cysts. B lymphocyte numbers were not associated with hydatid cyst fertility. Mast cells were infrequent in the adventitial layer. The number of T and B cells was not associated with F. hepatica co-infection. The present study contributes to the understanding of local immune responses in bovine cystic echinococcosis.


2020 ◽  
Vol 30 (10) ◽  
pp. 1515-1516
Author(s):  
Erkan İriz ◽  
Semih Yaylı ◽  
Serdar Kula

AbstractCystic echinococcosis caused by infection with the larvae form of Echinococcus granulosus remains highly endemic and constitutes a public health concern in some regions of the world. In this case report, we present a rare children case of interventricular hydatid cyst with a size of approximately 5 cm and its successful treatment.


Author(s):  
Hossein Mahmoudvand ◽  
Amal Khudair Khalaf ◽  
Mania Beyranvand

Background:: Hydatidosis is one of the most dangerous zoonosis diseases in the world caused by the larval stage of the broad-worm or Echinococcus granulosus parasite. Today, cysts' rupture or content leakage during surgery and in-volvement of organs adjacent to the organ involved, and consequently secondary cysts, are the major concern for hydatid cyst surgeons. Therefore, using scolicidal substances such as hypertonic saline 20%, silver nitrate and formalin has been considered to reduce the risk of protoscoleces spread and recurrence of disease in recent years. The current work designed to assess the antiparasitic effects of Capparis spinose L. extract against hydatid cyst protoscoleces. Methods:: Collected protoscoleces from liver fertile hydatid cysts of infected sheep were exposed to the different concentra-tions of the essential oil (150, 300, 600 mg/mL) for 5-60 min in vitro and ex vivo. Then by using the eosin exclusion assay the viability of protoscoleces was studied. The primary phytochemical analysis of the C. spinosa extract was done to assess the presence of tannins, alkaloids, saponins, flavonoids, terpenoids and glycosides. Results:: C. spinosa extract had a powerful protoscolicidal activity in vitro so that at the 300 and 600 mg/ml entirely elimi-nates the parasite after 10 and 5 minutes; whereas at lower doses demonstrated weak protoscolicidal activity. Ex vivo assay, no similar effect with in vitro was observed, so that requiring a more time to show a potent protoscolicidal activity. C. spi-nosa extract at the concentrations of 300 and 600 mg/mL after exposure time of 20 and 12 min, killed 100% of protoscole-ces within the hydatid cyst, respectively. The findings of primary phytochemical screening of the C. spinosa extract demon-strated the existance of flavonoids, tannins, terpenoids, glycosides and alkaloids in this plant. Conclusion:: The obtained results in vitro and ex vivo exhibited that potent protoscolicidal effects of C. spinosa extract particu-larly at the concentrations of 600 and 300 mg/ml which entirely eliminates the parasite after 5-20 min exposure. However, more and supplementary works are required to verify these findings through assessing in animal models and clinical subjects.


2012 ◽  
Vol 15 (3) ◽  
pp. 167 ◽  
Author(s):  
Mehmet Oc ◽  
Omer Ulular ◽  
Bahar Oc

Hydatid cyst is a serious endemic parasitic disease found in cattle-raising areas of the world. Cardiac hydatid cysts are rare and appear in 0.5% to 2% of hydatid cyst cases. A 24-year-old male patient was admitted to the hospital because of chest pain. A cystic mass (4 4 3 cm) was demonstrated with transthoracic echocardiography, computed tomography, and magnetic resonance imaging. A hydatid cyst was located in the right ventricular wall near the inferior branch of the acute marginal branch of the right coronary artery and was located such that it pushed the tricuspid valve inward. The cystic materials were removed with the patient on cardiopulmonary bypass. The surgery for cardiac hydatid disease is safe, and the results are satisfactory.


2021 ◽  
Vol 8 ◽  
Author(s):  
Ahmed Gareh ◽  
Amira A. Saleh ◽  
Samar M. Moustafa ◽  
Amin Tahoun ◽  
Roua S. Baty ◽  
...  

Cystic echinococcosis has been considered one of the major parasitic zoonoses which is associated with severe economic losses. The present study was undertaken to investigate the occurrence, organ distribution, cyst fertility, and viability of cystic echinococcosis in slaughtered camels and cattle from various abattoirs in Assiut Governorate, Egypt. The work also involved morphological, morphometric, and molecular identification of the parasite. The occurrence of hydatid cysts was investigated in total number of 100 lungs of camels and 574 liver and lungs of cattle admitted to three slaughterhouses at Assiut Governorate, Egypt. Moreover, several individual variable factors, including organ involvement, age, sex, and hydatid cyst characteristics, were studied to identify their possible association with the occurrence of the disease. Genomic DNA was extracted from the hydatid cysts, followed by molecular identification of the parasite through amplification of ribosomal DNA internal transcribed spacer (ITS) regions. Hydatid cysts were found in 6 camels (6%) out of 100 inspected camels, while 5 hydatid cysts (0.87%) were detected in a total number of 574 cattle examined. The parasite was detected exclusively in lungs of camels, while lungs were the main organ infected by the parasite in cattle and one hydatid cyst was found in the liver (0.17%). In camel, 66.7, 16.65, and 16.65%of detected cysts were fertile, sterile, and calcified, respectively, while in cattle, these percentages were 60, 20, and 20%, respectively. None of the studied variable factors were significantly associated with the occurrence of the disease in camels, with the exception that all cysts were found in the lung. Conversely, we found a significant association (P < 0.05) between the age and sex of the slaughtered cattle and the occurrence of hydatid cysts. In this respect, the rate of infection was higher in female cattle and those cattle more than 5 years (P < 0.05). The morphological, morphometric, and molecular studies confirmed the presence of the parasite. Taken together, our results concluded that camels and cattle play a potential role in maintaining the transmission cycle of this zoonotic parasite.


2016 ◽  
Vol 72 (11) ◽  
pp. 666-670
Author(s):  
Jakub Gawor

The purpose of this article was to present current data on cases of cystic echinococcosis in humans and animals in Poland. Cystic echinococcosis, caused by Echinococcus granulosus, is one of the most important parasitic zoonoses occurring globally. In many regions of the world, the disease is an important epidemiological problem. The life cycle of Echinococcus involves hoofed farm animals and dogs. Among its species and genotypes ascertained in the world, two (G1 and G7) have been confirmed in sheep and pigs as intermediate hosts in Poland. Molecular examinations of postoperative parasitic material from patients established that the porcine strain G7 is the cause of human cystic echinococcosis in Poland. Data on post-slaughter examinations of pigs identified as intermediate hosts of E. granu-losus suggest that the number of cases reported in humans (approx. 40 annually) is probably underestimated. In the last two years, the prevalence of hydatid cysts in pigs in Poland has been estimated at 0.3%, with the highest number of infected animals in central Poland (0.4%-1.2%). This indicates the presence of infection in dogs and the risk of echinococcosis for humans.


2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Reza Shahriarirad ◽  
Amirhossein Erfani ◽  
Mehrdad Eskandarisani ◽  
Mohammad Rastegarian ◽  
Bahador Sarkari

Background. Most cases of hydatid cysts form in the liver and lung and other tissues are considered as unusual locations in hydatid cysts. The current study aimed to find out the rate and features of hydatid cysts in uncommon locations in Fars Province, Southern Iran, over a 15-year period. Methods. The hospital records of patients who underwent surgery for hydatid cysts in university-affiliated hospitals in Fars Province, Southern Iran, from 2004 to 2018, were retrospectively reviewed. For each patient, clinical and demographical data were recorded. Results. During a 15-year period, a total of 501 patients were surgically treated for hydatid cysts, and out of these, 46 (9.2%) were presented with the unusual locations of hydatid disease. Males constituted 28 (60.9%) of these patients while 18 (39.1%) of the patients were females. The patients’ age ranged from 5 to 80 years (mean = 40.49; SD = 20.37). The size of the cysts ranged from 2 to 20 cm (mean = 8.69, SD = 4.59). The most common unusual location for the hydatid cyst was the spleen with 30.4% of cases, followed by the pelvic cavity (15.2%). Out of 46 cases with unusual location of the hydatid cyst, 10 (21.7%) cases had lung, 22 (47.8%) cases had liver, and 5 (10.9%) cases had both liver and lung hydatid cysts, simultaneously with cysts in unusual locations. Conclusion. In cystic echinococcosis- (CE) endemic areas, hydatid disease can affect any organ, from head to toe, in humans. The disease should be considered in the differential diagnosis of any cystic entities anywhere in the body.


2014 ◽  
Vol 31 (3) ◽  
pp. 156-158
Author(s):  
A Kutub ◽  
MM Rahman ◽  
S Hena

Human hydatid cyst is an illness caused by the cystic phase of the small trepanoma, Echinococcus granulosus. It is an endemic disease in some countries of the world. Hydatid disease though known to occur in almost all organs of the body, it is extremely rare in the female reproductive organs. In this report we present a case of hydatid disease of both ovaries with widespread intraabdominal hydatid cysts. This case was misdiagnosed as an ovarian cyst until the time of operation. DOI: http://dx.doi.org/10.3329/jbcps.v31i3.20983 J Bangladesh Coll Phys Surg 2013; 31: 156-158


2020 ◽  
Author(s):  
Aabid Ashraf ◽  
Yaqoob Hassan Wani ◽  
Javid Ahmad Bhat ◽  
Ajaz Ahmad Rather

Abstract BackgroundHydatid disease is endemic in some regions of the world. Even in endemic regions, splenic hydatid cysts are rare, especially in pregnancy. The most serious presentation is intra peritoneal rupture, which is a surgical emergency. Exploration with splenectomy is the favoured management.Case presentationWe present a case of splenic hydatid cyst detected late in pregnancy, which presented with intraperitoneal rupture in the postpartum period. A brief review in the context is also presented.ConclusionCystic lesions located anywhere in the body in endemic regions could be hydatid cysts. Prompt treatment should be planned immediately on detection in order to prevent potentially serious complications like rupture.


2016 ◽  
Vol 13 (1) ◽  
pp. 19-30 ◽  
Author(s):  
MM Hossain

The demand of herbicide in agriculture is going to be increased and its use is increasingly being adopted around the world. Many developing countries like India, China, Bangladesh are facing shortages of workers for hand weeding crop fields as millions of people are moving to urban from rural areas. In these countries, herbicides are cheaper and more readily available than labor for hand weeding. It is inevitable that, herbicide use will increase in world agriculture, not only because millions of people are leaving rural areas, creating shortages of hand weeders, but also the need to increase crop yields. Hand weeding has never been a very efficient method of weed control often performed too late and not frequently enough. In many parts of the world, herbicides are being increasingly used to replace tillage in order to improve environmental conditions. In comparison with tillage, herbicide use reduces erosion, fuel use, greenhouse gas emissions and nutrient run-off and conserves water. This review article focuses on the status of using herbicides and its adoption in global agriculture.J. Bangladesh Agril. Univ. 13(1): 19-30, June 2015


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