**Author details**

*Overview on Echinococcosis*

have tried to correct in the last patients.

reinstall it, as occurred in two patients.

of complications increases. The average output in our patients reached 498 ml per day, and the ERPC indication was performed when the flow was persistently greater than 200 mh and the latency of the procedure reached 20 days, a situation that we

When reviewing the worldwide experience up to 2002 in the endoscopic management of CHH, the Turkish gastroenterologists Ersan Özaslan and Yusuf Bayraktar mention that optimal management of EBF remains unanswered. In their opinion of sphincterotomy, stent and nasobiliar drainage are not exclusive but complementary, and each should be used according to the individual characteristic of each patient [6]. The therapy performed in the service to patients with EBF consisted of a combination of sphincterotomy plus stent installation. In the first patients a 7 F was used to subsequently use a thicker 8.5 F. This was done to reduce the probability of being obstructed with the content of the residual cavity and having to change and

All this was subsequently endorsed by the publication of Adas et al. [14], who in a retrospective multicenter study concluded that sphincterotomy is the treatment of choice in low debit EBFs, but in high debit EBFs (flow greater than 200 ml per day),

It is worth mentioning that the removal of the prosthesis should not be performed beyond 4–6 weeks after the cessation of EBF [12]. In our patients this was performed in 5 of 9, those in which choledocholithiasis was not favored, thus requiring a new ERCP (patient 7), in another there was persistence of infection of the residual cavity (patient 2), in a third the stent had to be removed due to persistent pain (patient 3), and in another there was migration of the prosthesis to the residual cavity (patient 9). Therefore, at this time, as a rule, the stent is removed no

According to the different series, the objective of the cessation of EBF is achieved by 83.3–100%, and the closing time varies between 2 and 4 weeks [12]. When reviewing our series, the target was 100%, and the average closing time of the EBF was 28 days. This is far from the spontaneous evolution that reached

It is worth mentioning that the monitoring of patients in this series of cases reached 100%, the average being 6 years. This occurs because the disease mainly affects patients who are beneficiaries of the public system, and since there is no private clinic in the region, in most cases they must be controlled in the regional

This study confirms that ERPC is a useful and safe procedure in the diagnosis

the gold standard is the insertion of a 10 F stent whenever possible.

later than 4–6 weeks after the cessation of bile flow.

In this series of cases, there was no mortality.

and treatment of bile complications of liver hydatidosis.

The authors declare no conflict of interest.

**Notes/thanks/other declarations**

42 days in a previous publication [7].

**96**

None.

hospital.

**5. Conclusions**

**Conflict of interest**

Pedro Pinto1 \*, Sergio Gaete2 and Patricia Vega<sup>2</sup>

1 Surgery Service, Coyhaique Regional Hospital, Coyhaique, Chile

2 Endoscopy Unit, Coyhaique Regional Hospital, Coyhaique, Chile

\*Address all correspondence to: pedropablopatricio@gmail.com

© 2019 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
