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A Retrospective Analysis of Cyanoacrylate Injection versus Hemoclip Placement for Bleeding Dieulafoy's Lesion in Duodenum.

1. Introduction

First described in 1898 by Dieulafoy, DL was identified in two patients with fatal upper gastrointestinal hemorrhage without ulceration. The incidence of this disease is rare; nonetheless, it can result in serious gastrointestinal bleeding [1]. In most patients, it is presented as melena, hematemesis, and hematochezia, and it accounts for 1-5.8% cases of acute upper GI bleeding [2]. With the advances in endoscopic techniques, the mortality of DL patients has been reduced from 80% to 8%, and surgical intervention is only considered in cases of failed endotherapy [3].

At the beginning of this century, the first perspective randomized-controlled study demonstrated that hemoclip and band ligation are equally effective compared to injection therapy for DL bleeding [4]. The overall hemostasis rate in hemoclip therapy has been shown to be up to 95% [5], but the ratio of emergent surgery is still above 5%, according to a recent multicenter report [6]. Furthermore, currently, there are no cohort studies on the effectiveness of cyanoacrylate injection for the treatment of duodenal DLs, since most of DLs are located in a proximal stomach. The best technique for endoscopic intervention in DL is still not clear [3]. In the present study, we performed a retrospective analysis of cyanoacrylate injection versus hemoclip placement for treating bleeding DLs in the duodenum.

2. Patients and Methods

2.1. Study Design. The present study was a retrospective cohort analysis. The study protocol was approved by the Ethics Board of Beijing Ditan Hospital, Capital Medical University. Between October 2008 and February 2016, a total of 18 DL patients from three medical centers were enrolled in the study. All the patients received endoscopy within 12 hours of hospitalization and were diagnosed with duodenal DLs. The last follow-up was 3 months after the endoscopy treatment.

2.2. Patients. The diagnosis of duodenal DL was based on recently reported criteria [7, 8] including (i) active arterial spurting or bleeding from minute defect (<3mm); (ii) a protruding vessel within nearly normal mucosa; and (iii) a fresh, densely adherent clot within the normal-appearing mucosa. The patients' age, sex, blood pressure, hemoglobin, prothrombin time (PT), concurrent disease, location, the type of bleeding stigmata, and final outcomes were analyzed. Primary outcomes, including the primary hemostasis rate and rebleeding rate, were compared between the two groups. The secondary outcomes such as the number of endoscopic sessions, need for emergent surgery or transcatheter arterial embolization, bleeding-related deaths, transfusion requirements, hospitalization period, and survival time information were also retrospectively compared between the two groups.

2.3. Endoscopic Therapy. Data were collected according to following criteria: (i) endoscopic treatments were performed by gastroenterologists with at least 3 years of endoscopic experience; (ii) patients received endoscopic examination within 12 hours of hospitalization; (iii) duodenal DL diagnosis was confirmed by endoscopy; (iv) after being diagnosed, the patient received either cyanoacrylate injection (CI group) or hemoclip placement (HP group); and (v) 3-10 days after the endoscopic treatment, patients received the first endoscopic follow-up, and after 1-3 months, they received the second endoscopic follow-up. For evaluating the efficacy of endoscopy, primary hemostasis and recurrent bleeding were determined based on previous reports [8]. The following apparatus/materials were used for endotherapy: GIF-260J or GIF-260 (Olympus, Japan); Sclerotherapy Needle and Interject[TM] Injection Therapy Needle Catheter (Boston Scientific, USA); Resolution[TM] Clip Hemoclip (Boston Scientific, USA); and N-butyl-2-cyanoacrylate 0.5 mL (Braun, German).

2.4. Statistical Analysis. GraphPad Prism 5.01 software was used for the statistical analysis. For comparing the differences in qualitative data between the two groups, chi-squared test or Fisher's exact test was performed. Student's t-test was used for comparing the mean differences between the two groups. P < 0.05 was considered statistically significant.

3. Results

3.1. Demographic Data. A total of 18 duodenal DL patients from three medical centers met the inclusion criteria. Patient's demographic data are shown in Table 1. The major manifestation was melena (61.11%), hematochezia (22.22%), and hematemesis and melena (16.67%). Comorbidities of duodenal DL were observed in 12 patients (66.67%), including hypertension in 2 patients (11.11%), diabetes mellitus in 3 patients (16.67%), hepatic cirrhosis in 4 patients (22.22%), fat liver in 2 patients (11.11%), cholelithiasis in 1 patient (5.56%), arteriosclerosis in 3 patients (16.67%), and hyperlipoidemia in 2 patients (11.11%). The compensated shock was observed in three patients (16.67%). No significant difference was observed between the two groups with regard to age, sex, hemoglobin and PLT levels, and comorbidities (Table 1).

3.2. Endotherapy. All endotherapies at three medical centers were performed with standard upper endoscopes by experienced gastroenterologists. Based on the present data, the use of hemoclips or cyanoacrylate injection usually depends on the preference of endoscopists; two patients with active bleeding received cyanoacrylate injection in the CI group (Table 1, Figure 1). In the HP group, there were 12 patients (Figure 2), and totally, 16 hemoclips were used; 8 patients had active bleeding, 3 patients had a protruding vessel, and one patient had a clot (Table 1, Figure 2). In addition to 6 patients from the CI group, 4.5 mL (0.5 mL x 9) was used in total. None of the patients needed surgery or any other additional treatment. There were no marked side effects after our endoscopic treatment, except that one patient in the CI group developed mild ulcer at the injection site and completely recovered after rabeprazole therapy.

3.3. Hemostasis Rate and Rebleeding Rate. All patients received first endoscopic examination and/or endotherapy within 12 hours after being admitted into these medical centers. To observe the effects of CI and HP to duodenal DL, we compared primary hemostasis and recurrent hemorrhage between the two groups. As shown in Table 2, no differences were observed between the CI and the HP groups in primary hemostasis or recurrent hemorrhage, except for 1 patient from the HP group, who had melena reoccur three days after the first endotherapy; thus, cyanoacrylate injection was performed once again. The clinical outcome was summarized in Table 2.

4. Discussion

Before the 1980s, a surgical approach was the only definitive treatment for DL patients failed by drugs, and the effectiveness of angiographic embolization was usually disappointing [9]. During that time, a surgical operation was considered the only life-saving option [10]. In the late 1980s, endoscopic electrocoagulation was first used for controlling hemorrhage in DL patients, and a selective arterial embolization was the alternative treatment used for failed endoscopic therapy [11]. After that, other endoscopic therapies have been used in clinical DL treatment as well, including epinephrine injection, heater probe technique, bipolar electrocoagulation, and Nd : YAG laser photocoagulation [12]. During the late 1990s, clipping and ethanol injection or sclerotherapy was introduced into the treatment of DL bleeding [13, 14]. However, subsequent retrospective analysis has suggested that endoscopic thermal coagulation should be the first choice of initial treatment for DL hemorrhage [15]. Hemoclip [16, 17] and band ligation [18] have also gradually become commonly used therapies for DL treatment [19, 20].

Since most of DLs are located in the stomach [21, 22], there are almost no reports on the methods of duodenal DL treatment before the 1990s. In 1990, Goldenberg et al. have reported that a patient with duodenal DL was successfully treated with endoscopic injection of epinephrine and electrocoagulation [23]. Several years later, Hokama et al. have combined endoscopic clipping and ethanol injection in treating duodenal DL [24]. At the beginning of this century, endoscopic band ligation also became widely used for treating duodenal DL [25]. Nevertheless, further controlled studies are needed to evaluate the different methods or combined therapies. Recently, the first clinical controlled study about endotherapy of duodenal DL treatment has been published [26], showing that endoscopic band ligation and hemoclip placement are equally effective in duodenal DL treatment.

Cyanoacrylate injection has been used to treat hemorrhage of esophageal varices since the late 1970s [27]. This technique is a standard method to control varix bleeding in cirrhotic patients worldwide [28, 29]. However, there has been no clinical evaluation of its effectiveness in treating duodenal DL, except for a recent case report [30]. In the present study, we retrospectively analyzed the effectiveness of cyanoacrylate injection versus hemoclip placement in duodenal DL treatment. Based on our observation, there was no difference in effectiveness between the CI and the HP groups. In all of our cases, hemorrhage was completely controlled after cyanoacrylate injection. Moreover, no noticeable side effects were observed in either group. It seems that 0.5 mL cyanoacrylate (usual dosage per patient) was more expensive than one hemoclip.

The major limitation of the present retrospective study was patient grouping. Only six patients received cyanoacrylate injection, and eight patients with active bleeding received hemoclip placement. It seems that the patient grouping (with or without active bleeding) may lead to a selection bias. As a new method, cyanoacrylate injection was mainly used to control active hemorrhage, such as varix bleeding. More importantly, compared with other endoscopic hemostatic methods in a recent meta-analysis report, cyanoacrylate injection is associated with increased likelihood of hemostasis of active bleeding [31]. Moreover, according to a recent study, there is no difference in the hemostasis rate in acute nonvariceal upper gastrointestinal bleeding between cyanoacrylate injection and hemoclip placement [32]. In the present study, the data indicated that the patient grouping did not lead to significant clinical bias in the hemostasis rate.

In conclusion, both CI and HP are effective approaches for treating duodenal DL. CI has a higher hemostasis rate without significant side effects. Further large sample size and prospective randomized trials are necessary to evaluate the efficacy and safety of duodenal DL treatments.

DL:   Dieulafoy's lesion.

Conflicts of Interest

Drs. Yu Jiang, Julong Hu, Ping Li, Wen Jiang, Wenyan Liang, and Hongshan Wei have no conflicts of interest or financial ties to disclose.


This work was partly supported by the Science Foundation of Capital Medicine Development (2014-2-2171) and the Capital Foundation for Clinical Characteristic Applied Research projects (Z141107002514132) to Professor Hongshan Wei.


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Yu Jiang, (1) Julong Hu, (1) Ping Li, (1) Wen Jiang, (2) Wenyan Liang, (3) and Hongshan Wei (iD) (1)

(1) Department of Gastroenterology, Beijing Ditan Hospital, Capital Medical University, No. 8 Jingshun East St., Chaoyang District, Beijing 100015, China

(2) The Endoscopy Center, Huangshan Shoukang Hospital, Meilin Rd. Economic & Technological Development Zone, Huangshan, Anhui Province 245000, China

(3) Department of Gastroenterology, Huairou Hospital, Qingchun Rd., Huairou, Beijing 101400, China

Correspondence should be addressed to Hongshan Wei;

Received 1 September 2017; Revised 5 January 2018; Accepted 28 January 2018; Published 26 March 2018

Academic Editor: Mohit Girotra

Caption: Figure 1: A male (58 years old) duodenal DL patient received cyanoacrylate injection during upper endoscopy. (a) An active bleeding was observed on the descending part of the duodenum. (b) Cyanoacrylate injection. (c) One month after endotherapy.

Caption: Figure 2: A male (28 years old) duodenal DL patient received hemoclip placement during upper endoscopy. (a) A protruding vessel 1 month post endoscopy, without active hemorrhage on the superior part of the duodenum. (b) Hemoclip placement. (c) 10 days after endotherapy.
Table 1: Clinical characteristics of patients in the cyanoacrylate
injection and hemoclip placement groups.

                                 CI (n = 6)             HP (n =12)

Age (years)                 51.50 [+ or -] 7.29    44.58 [+ or -] 12.14
Blood pressure              109.8 [+ or -] 32.73   104.3 [+ or -] 14.37
Hemoglobin level            86.43 [+ or -] 30.15   88.30 [+ or -] 37.21
Platelet                    177.0 [+ or -] 52.21   213.8 [+ or -] 104.9
Prothrombin time            13.93 [+ or -] 2.34    13.25 [+ or -] 2.45
Concurrent disease                   4                      8
Endoscopic characteristic
Active hemorrhage                    2                      8
Protruding vessel
without active                       3                      3
Blood clot                           1                      1
Duodenal bulb                        3                      9
Descendant duodenum                  3                      3

                                  P value

Age (years)                        0.221
Blood pressure                     0.616
Hemoglobin level                   0.917
Platelet                           0.434
Prothrombin time                   0.579
Concurrent disease                  1.00
Endoscopic characteristic           1.00
Active hemorrhage
Protruding vessel
without active
Blood clot
Location                           0.344
Duodenal bulb
Descendant duodenum

Table 2: Clinical outcomes of cyanoacrylate injection and hemoclip
placement on Dieulafoy's lesions.

                                 CI (n = 6)            HP (n = 12)

Primary hemostasis                   6                      11
Recurrent hemorrhage                 0                      1
Transfusion (mL)                   N = 2,                 N =1,
                                 total 4IU              total 1 IU
Hospital stay (days)        9.833 [+ or -] 1.11    9.333 [+ or -] 1.45

                                  P value

Primary hemostasis                  1.00
Recurrent hemorrhage
Transfusion (mL)

Hospital stay (days)               0.824
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Title Annotation:Clinical Study
Author:Jiang, Yu; Hu, Julong; Li, Ping; Jiang, Wen; Liang, Wenyan; Wei, Hongshan
Publication:Gastroenterology Research and Practice
Date:Jan 1, 2018
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