Intestinal Helminths Infections as Infrequent Cause of Emergency Abdominal Surgery: A Retrospective Study in a University Hospital over 20 Years.

INTRODUCTION: All organs of any organism can be affected by helminths. They can be seen in a broad spectrum, from simple infestations to extensive, life-threatening involvement. Symptomatology is usually of chronic latent course. However, sometimes the presentation is acute and requires urgent surgical intervention. MATERIAL AND METHODS: We conducted a retrospective observational prospective recruitment study of patients undergoing emergency surgery for helminth infection from January 2000 to December 2019 at a university hospital. Sociodemographic and analytical variables, variables related to the clinical process, and the diagnostic test were analysed. Variables related to the surgical procedure and postoperative complications were also analysed. RESULTS: A total of 36 patients required emergency surgery for their helminth infection, which represented 0.26% of emergency abdominal surgeries. The mean age was 34.91 ± 21.5 years, with a predominance of men (69.4%). Most patients presented with pain in the right iliac fossa (69.4%), followed by symptoms compatible with intestinal obstruction (19.4%). The most frequent surgical interventions were appendectomy (38.9%) followed bowel resection (33.3%) and ileocecal resection (11.1%). Enterobious vermicularis and Anisakis simplex both together accounted for 75% of the sample. Statistically significant differences were identified in age (p < 0.001), diagnostic test performed (p = 0.032), intraoperative clinical diagnosis (p = 0.005) and surgical treatment received (p < 0.001). CONCLUSION: The frequency of emergency surgeries for intestinal helminth parasitism is decreasing. However, the majority of these are E. vermicularis and Anisakis simplex, which have distinctly different clinical presentations. Identification and recognition by physicians continue to be necessary for further postoperative management and possible complications.

Surgical treatment of liver echinococcosis and alveococcosis.

Parasitic liver zoonoses are endemic to some regions of Russia as well as to Mediterranean countries, Australia, New Zealand, South America, and the Indian subcontinent. However, the available data on the surgical treatment of patients with parasitic liver diseases are often contradictory, and such treatments remain a difficult task today. The effectiveness of surgical treatment was analyzed in 628 patients with echinococcosis and 58 patients with liver alveococcosis managed at the Republican Clinical Hospital during 1998-2018. The most commonly performed surgery for echinococcosis was closed echinococcectomy of different types, which was applied in 428 patients. Surgical outcomes were evaluated according to the type of surgery. Although there were no differences in outcomes in the immediate postoperative period, long-term postoperative outcomes differed with the type of surgery, compelling us to reconsider the surgical methods employed, with a preference for implementing cystectomy with omentoplasty of the residual cavity of the liver. In fact, the best outcomes in terms of recurrence and complications were obtained with minimal but adequate procedures, namely actual echinococcectomy without the resection of the residual cavity or liver. Thus procedures with low-traumatic access should be performed in cases with specific indications, such as the presence of easily accessible and well-visualized parasitic cysts.

Parasitic infestations requiring surgical interventions.

Parasitic infestation is common in developing countries especially in Africa. Children are often more vulnerable to these infections. Many health problems result from these infestations, including malnutrition, iron-deficiency anemia, surgical morbidities, and even impaired cognitive function and educational achievement. Surgical intervention may be needed to treat serious complications caused by some of these parasites. Amoebic colitis and liver abscess caused by protozoan infections; intestinal obstruction, biliary infestation with cholangitis and liver abscess, and pancreatitis caused by Ascaris lumbricoides; biliary obstruction caused by Faschiola; hepatic and pulmonary hydatid cysts caused by Echinococcus granulosus and multilocularis are examples. Expenditure of medical care of affected children may cause a great burden on many African governments, which are already suffering from economic instability. The clinical presentation, investigation, and management of some parasitic infestations of surgical relevance in African children are discussed in this article.

Aspects of human parasites in which surgical intervention may be important.

Until recently, physicians and surgeons in developed countries only occasionally encountered patients with parasitic protozoan and helminthic infections. High-speed travel, immigration and the popularity of the tropics as vacation areas have increased the number of people at risk for parasitic disease. This chapter examines the significant literature on a select number of protozoan and helminthic parasites for which surgical intervention is important in the diagnosis, treatment or cure of the disease. Although traditional surgical approaches are covered, emphasis is placed on recent advances in the areas of transplantation and minimally invasive surgery. Combining the disciplines of parasitology and surgery, this chapter covers three protozoan and seven helminthic parasites for which surgery is a valid treatment option based on the frequency of cases reported in the literature. Following coverage of the selected parasites, a table is included listing additional helminths for which surgery contributes to patient management. Physicians in the USA, UK, and Europe need to be more aware of the presentation and treatment of parasitic infections. It is our sincere hope that this review accomplishes that goal, and ultimately benefits the patients we serve.