Treatment of Gastric Varices Using EUS Guided Techniques
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|ClinicalTrials.gov Identifier: NCT03155256|
Recruitment Status : Completed
First Posted : May 16, 2017
Last Update Posted : February 26, 2019
Bleeding from gastric varices (GV) is associated with high mortality. Injection of cyanoacrylate (CYA) using standard gastroscopes has demonstrated higher hemostasis and lower rebleeding rates compared to band ligation or sclerotherapy. Nevertheless CYA treatment is known to be associated with significant adverse events. Pulmonary embolism due to CYA injection is a serious and sometimes fatal complication of this therapy. Romero-Garcia et al. recently showed that, even these patients usually have respiratory symptom, this complication can be present in asymptomatic patients and with only CT pathological images showing it. On the other hand, risk of glue embolism, has been described to be dependent on the volume of CYA injected, being significantly greater with high volume. Other complications related to CYA injection are, hemorrhage from post injection ulcers, fever, peritonitis, needle impaction, and even death. Also the injection material can cause serious damage to the endoscope.
Currently endoscopic treatments are CYA injection under direct visualization using a standard gastroscope and treatment under EUS guidance with injection of CYA, coils or both. However, to date, it is unknown whether one of these techniques is technically more feasible or causes less adverse events than the other.
Treatment under EUS guidance may improve results because of precise targeting of the varix lumen or afferent feeding veins. This allows the vein to be obstructed with a small amount of CYA, less than used for the "blind" injection of GV with standard endoscopic technique and may reduce the risk of glue embolism. EUS can confirm varix obliteration by using Doppler. Also visualization of GV by using EUS is not impaired by blood or food in the stomach and thus can be performed in the setting of active hemorrhage.
|Condition or disease||Intervention/treatment||Phase|
|Gastric Varix||Procedure: EUS-guided injection of coils with cyanoacrylate Procedure: EUS-guided injection of coils||Not Applicable|
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||59 participants|
|Intervention Model:||Parallel Assignment|
|Official Title:||Comparative EUS Guided Techniques in Treatment of Gastric Varice: a Prospective, Ranzomized Study|
|Actual Study Start Date :||March 1, 2016|
|Actual Primary Completion Date :||August 31, 2017|
|Actual Study Completion Date :||October 31, 2018|
Experimental: Coils + Cyanoacrylate Group
Patients with Gastric Varices GOV II or IGV I and with active bleeding, history of previous bleeding due to GV (secondary prophylaxis) or high-risk GV according to Baveno VI consensus for primary prophylaxis will be treated using EUS-guided injection of coils with cyanoacrylate
Procedure: EUS-guided injection of coils with cyanoacrylate
First a standard diagnostic upper endoscopy will be performed in order to classify the varices according to the classification of Sarin and Kumar. Only GOV II and IGV I varices will be included. Once the patient is conceder a candidate will be treated with Coils plus CYA (Group A)
Experimental: Coils Group
Patients with Gastric Varices GOV II or IGV I and with active bleeding, history of previous bleeding due to GV (secondary prophylaxis) or high-risk GV according to Baveno VI consensus for primary prophylaxis will be treated using EUS-guided injection of coils
Procedure: EUS-guided injection of coils
First a standard diagnostic upper endoscopy will be performed in order to classify the varices according to the classification of Sarin and Kumar. Only GOV II and IGV I varices will be included. Once the patient is conceder a candidate will be treated with only coils (Group B).
Other Name: Device: coils
- Efficacy of EUS guided techniques (Coils + CYA vs Coils alone) for GFV treatment [ Time Frame: 12 month ]Efficacy will be measure by technical success defined as successful technique performance and funcional success defined as complete obliteration of the varix and absence of Doppler flow on EUS.
- Safety of EUS guided techniques (Coils + CYA vs Coils alone) for GFV treatment [ Time Frame: 12 month ]Safety will be determinated by measure of adverse events related to the procedure or gastric varices within and after 30 days of the procedure.
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03155256
|Ecuadorian Institute of Digestive Diseases, Omnihospital|
|Guayaquil, Guayas, Ecuador, 090505|
|Principal Investigator:||Carlos A Robles-medranda, MD||Ecuadorian Institute of Digestive Diseases|