Study of hydatidosis-attributed mortality in endemic area.

BACKGROUND: Cystic hydatid disease is still an important health problem in European Mediterranean areas. In spite of being traditionally considered as a "benign" pathology, cystic echinococcosis is an important cause of morbidity in these areas. Nevertheless, there are few analyses of mortality attributed to human hydatidosis. OBJECTIVE: To describe the epidemiology, the mortality rate and the causes of mortality due to E. granulosus infection in an endemic area. METHODOLOGY: A retrospective study followed up over a period of 14 years (1998-2011). PRINCIPAL FINDINGS: Of the 567 patients diagnosed with hydatid disease over the period 1998-2011, eleven deaths directly related to hydatid disease complications were recorded. Ten patients (90.9%) died due to infectious complications and the remaining one (9.1%) died due to mechanical complications after a massive hemoptysis. We registered a case fatality rate of 1.94% and a mortality rate of 3.1 per 100.000 inhabitants. CONCLUSIONS: Hydatidosis is still a frequent parasitic disease that causes a considerable mortality. The main causes of mortality in patients with hydatidosis are complications related to the rupture of CE cysts with supurative collangitis. Therefore, an expectant management can be dangerous and it must be only employed in well-selected patients

Main characteristics of the patients who died from hydatidosis.

<p>*Previous specific treatment before complication of CE.</p><p>♯ERCP: Endoscopic Retrograde Cholangio-Pancreatography.</p

Cause of death of patients with cyst echinococcosis (CE).

<p>*Contribution of each one of these causes in the mortality global: number and percentage of total mortality.</p

Demographic characteristics of our cohort of patients with hydatidosis.

<p>*PAIR: Puncture, Aspiration, Injection, and Reaspiration.</p

Surveillance of Human Echinococcosis in Castilla-Leon (Spain) between 2000-2012

<div><p>Abstract</p><p>Background</p><p>Cystic echinococcosis (CE) is an important health problem in many areas of the world including the Mediterranean region. However, the real CE epidemiological situation is not well established. In fact, it is possible that CE is a re-emerging disease due to the weakness of current control programs.</p><p>Methodology</p><p>We performed a retrospective observational study of inpatients diagnosed with CE from January 2000 to December 2012 in the Western Spain Public Health-Care System.</p><p>Principal findings</p><p>During the study period, 5510 cases of CE were diagnosed and 3161 (57.4%) of the cases were males. The age mean and standard deviation were 67.8 ± 16.98 years old, respectively, and 634 patients (11.5%) were younger than 45 years old. A total of 1568 patients (28.5%) had CE as the primary diagnosis, and it was most frequently described in patients <45 years old. Futhermore, a secondary diagnosis of CE was usually found in patients >70 year old associated with other causes of comorbidity. The period incidence rate was 17 cases per 10⁵ person-years and was significantly higher when compared to the incidence declared through the <i>Notifiable Disease System</i> (1.88 cases per 10⁵ person-years; p<0.001).</p><p>Conclusions</p><p>CE in western Spain is an underestimated parasitic disease. It has an active transmission, with an occurrence in pediatric cases, but has decreased in the recent years. The systematic search of Hospital Discharge Records of the National Health System Register (HDR) may be a more accurate method than other methods for the estimation of the incidence of CE in endemic areas.</p></div

Principal demographic data in patients included in the study.

<p>Principal demographic data in patients included in the study.</p

Recurrence of cystic echinococcosis in an endemic area: a retrospective study

Abstract Background Cystic echinococcosis (CE) is a chronic, complex and neglected zoonotic disease. CE occurs worldwide. In humans, it may result in a wide spectrum of clinical manifestations, ranging from asymptomatic infection to fatal disease. Clinical management procedures have evolved over decades without adequate evaluation. Despite advances in surgical techniques and the use of chemotherapy, recurrence remains one of the major problems in the management of hydatid disease. The aim of this study was to determine the frequency of CE recurrence and the risk factors involved in recurrence. Methods A descriptive longitudinal-retrospective study was designed. We reviewed all patients diagnosed with CE according to ICD-9 (code 122–0 to 122–9) criteria admitted at Complejo Asistencial Universitario de Salamanca, Spain, between January 1998 and December 2015. Results Among the 217 patients studied, 25 (11.5%) had a hydatid recurrence after curative intention treatment. Median duration of recurrence’s diagnosis was 12.35 years (SD: ±9.31). The likelihood of recurrence was higher [OR = 2.7; 95% CI, 1.1–7.1; p  0.05] that was two times higher in those patients treated with a combination of antihelminthic treatments and surgical intervention (20/141, 14.2%) than in patients treated with surgical intervention alone (5/76, 6.6%). Conclusions Despite advances in diagnosis and therapeutic techniques in hydatid disease, recurrence remains one of the major problems in the management of hydatid disease. The current management and treatment of recurrences is still largely based on expert opinion and moderate-to-poor quality of evidence. Consequently, large prospective and multicenter studies will be needed to provide definitive recommendations for its clinical management

Annual cases of CE in Castilla-Leon (western Spain) according to the age and year distribution.

<p>Annual cases of CE in Castilla-Leon (western Spain) according to the age and year distribution.</p