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Dive into the research topics where Alen Bišćanin is active.

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Featured researches published by Alen Bišćanin.


World Journal of Gastroenterology | 2012

Endoclips vs large or small-volume epinephrine in peptic ulcer recurrent bleeding

Neven Ljubičić; Ivan Budimir; Alen Bišćanin; Marko Nikolić; Vladimir Supanc; Davor Hrabar; Tajana Pavić

AIM To compare the recurrent bleeding after endoscopic injection of different epinephrine volumes with hemoclips in patients with bleeding peptic ulcer. METHODS Between January 2005 and December 2009, 150 patients with gastric or duodenal bleeding ulcer with major stigmata of hemorrhage and nonbleeding visible vessel in an ulcer bed (Forrest IIa) were included in the study. Patients were randomized to receive a small-volume epinephrine group (15 to 25 mL injection group; Group 1, n = 50), a large-volume epinephrine group (30 to 40 mL injection group; Group 2, n = 50) and a hemoclip group (Group 3, n = 50). The rate of recurrent bleeding, as the primary outcome, was compared between the groups of patients included in the study. Secondary outcomes compared between the groups were primary hemostasis rate, permanent hemostasis, need for emergency surgery, 30 d mortality, bleeding-related deaths, length of hospital stay and transfusion requirements. RESULTS Initial hemostasis was obtained in all patients. The rate of early recurrent bleeding was 30% (15/50) in the small-volume epinephrine group (Group 1) and 16% (8/50) in the large-volume epinephrine group (Group 2) (P = 0.09). The rate of recurrent bleeding was 4% (2/50) in the hemoclip group (Group 3); the difference was statistically significant with regard to patients treated with either small-volume or large-volume epinephrine solution (P = 0.0005 and P = 0.045, respectively). Duration of hospital stay was significantly shorter among patients treated with hemoclips than among patients treated with epinephrine whereas there were no differences in transfusion requirement or even 30 d mortality between the groups. CONCLUSION Endoclip is superior to both small and large volume injection of epinephrine in the prevention of recurrent bleeding in patients with peptic ulcer.


World Journal of Gastrointestinal Endoscopy | 2015

Biliary leakage after urgent cholecystectomy: Optimization of endoscopic treatment

Neven Ljubičić; Alen Bišćanin; Tajana Pavić; Marko Nikolić; Ivan Budimir; August Mijić; Ana Đuzel

AIM To investigate the results of endoscopic treatment of postoperative biliary leakage occurring after urgent cholecystectomy with a long-term follow-up. METHODS This is an observational database study conducted in a tertiary care center. All consecutive patients who underwent endoscopic retrograde cholangiography (ERC) for presumed postoperative biliary leakage after urgent cholecystectomy in the period between April 2008 and April 2013 were considered for this study. Patients with bile duct transection and biliary strictures were excluded. Biliary leakage was suspected in the case of bile appearance from either percutaneous drainage of abdominal collection or abdominal drain placed at the time of cholecystectomy. Procedural and main clinical characteristics of all consecutive patients with postoperative biliary leakage after urgent cholecystectomy, such as indication for cholecystectomy, etiology and type of leakage, ERC findings and post-ERC complications, were collected from our electronic database. All patients in whom the leakage was successfully treated endoscopically were followed-up after they were discharged from the hospital and the main clinical characteristics, laboratory data and common bile duct diameter were electronically recorded. RESULTS During a five-year period, biliary leakage was recognized in 2.2% of patients who underwent urgent cholecystectomy. The median time from cholecystectomy to ERC was 6 d (interquartile range, 4-11 d). Endoscopic interventions to manage biliary leakage included biliary stent insertion with or without biliary sphincterotomy. In 23 (77%) patients after first endoscopic treatment bile flow through existing surgical drain ceased within 11 d following biliary therapeutic endoscopy (median, 4 d; interquartile range, 2-8 d). In those patients repeat ERC was not performed and the biliary stent was removed on gastroscopy. In seven (23%) patients repeat ERC was done within one to fourth week after their first ERC, depending on the extent of the biliary leakage. In two of those patients common bile duct stone was recognized and removed. Three of those seven patients had more complicated clinical course and they were referred to surgery and were excluded from long-term follow-up. The median interval from endoscopic placement of biliary stent to demonstration of resolution of bile leakage for ERC treated patients was 32 d (interquartile range, 28-43 d). Among the patients included in the follow-up (median 30.5 mo, range 7-59 mo), four patients (14.8%) died of severe underlying comorbid illnesses. CONCLUSION Our results demonstrate the great efficiency of the endoscopic therapy in the treatment of the patients with biliary leakage after urgent cholecystectomy.


Croatian Medical Journal | 2014

North vs south differences in acute peptic ulcer hemorrhage in Croatia: hospitalization incidence trends, clinical features, and 30-day case fatality.

Neven Ljubičić; Tajana Pavić; Ivan Budimir; Željko Puljiz; Alen Bišćanin; Andre Bratanić; Marko Nikolić; Davor Hrabar; Branko Troskot

Aim To assess the seven-year trends of hospitalization incidence due to acute peptic ulcer hemorrhage (APUH) and associated risk factors, and examine the differences in these trends between two regions in Croatia. Methods The study collected sociodemographic, clinical, and endoscopic data on 2204 patients with endoscopically confirmed APUH who were admitted to the Clinical Hospital Center “Sestre Milosrdnice,” Zagreb and Clinical Hospital Center Split between January 1, 2005 and December 31, 2011. We determined hospitalization incidence rates, 30-day case fatality rate, clinical outcomes, and incidence-associated factors. Results No differences were observed in APUH hospitalization incidence rates between the regions. Age-standardized one-year cumulative APUH hospitalization incidence rate calculated using the European Standard Population was significantly higher in Zagreb than in Split region (43.2/100 000 vs 29.2/100,000). A significantly higher APUH hospitalization incidence rates were observed in the above 65 years age group. Overall 30-day case fatality rate was 4.9%. Conclusion The hospitalization incidence of APUH in two populations did not change over the observational period and it was significantly higher in the Zagreb region. The incidence of acute duodenal ulcer hemorrhage also remained unchanged, whereas the incidence of acute gastric ulcer hemorrhage increased. The results of this study allow us to monitor epidemiological indicators of APUH and compare data with other countries.


BioMedicine and Surgery | 2017

Retroperitoneal cystic lesion: an unusual first manifestation of metastatic testicular cancer

Dubravka Mužina Mišić; Mario Zovak; Alen Bišćanin; Monika Ulamec

Retroperitoneal and intraabdominal cystic lesions are rare entities, and pose diagnostic and therapeutic challenge. All those lesions should be managed case by case, based on previous medical history, diagnostic imaging features and eventually percutaneous cytological analysis. In case of uncertain preoperative diagnosis, malignancy should always be ruled out with surgical removal or biopsy.


Acta Clinica Croatica | 2017

Bleeding Peptic Ulcer – Tertiary Center Experience: Epidemiology, Treatment and Prognosis

Ivan Budimir; Sanja Stojsavljević; Davor Hrabar; Dominik Kralj; Alen Bišćanin; Lora Stanka Kirigin; Mario Zovak; Žarko Babić; Sven Bohnec

The aim of this study was to demonstrate epidemiological, clinical and endoscopic characteristics of acute upper gastrointestinal bleeding (UGIB) with special reference to peptic ulcer bleeding (PUB). The study included 2198 consecutive patients referred to our emergency department due to acute UGIB from January 2008 to December 2012. All patients underwent urgent upper GI endoscopy within 24 hours of admission, and 842 patients diagnosed with PUB were enrolled and prospectively followed-up. The cumulative incidence of UGIB was 126/100,000 in the 5-year period. Two out of five patients had a bleeding peptic ulcer; in total, 440 (52.3%) had bleeding gastric ulcer, 356 (42.3%) had bleeding duodenal ulcer, 17 (2%) had both bleeding gastric and duodenal ulcers, and 29 (3.5%) patients had bleeding ulcers on gastroenteric anastomoses. PUB was more common in men. The mean patient age was 65.9 years. The majority of patients (57%) with PUB were taking agents that attenuate the cytoprotective function of gastric and duodenal mucosa. Rebleeding occurred in 77 (9.7%) patients and 47 (5.9%) patients required surgical intervention. The 30-day morality was 5.2% and 10% of patients died from uncontrolled bleeding and concomitant diseases. In conclusion, PUB is the main cause of UGIB, characterized by a significant rebleeding rate and mortality.


Hepato-gastroenterology | 2011

A randomized-controlled trial of endoscopic treatment of acute esophageal variceal hemorrhage: N-butyl-2-cyanoacrylate injection vs. variceal ligation.

Neven Ljubičić; Alen Bišćanin; Marko Nikolić; Vladimir Supanc; Davor Hrabar; Tajana Pavić; Marko Boban


Scandinavian Journal of Gastroenterology | 2014

Mortality in high-risk patients with bleeding Mallory–Weiss syndrome is similar to that of peptic ulcer bleeding. Results of a prospective database study

Neven Ljubičić; Ivan Budimir; Tajana Pavić; Alen Bišćanin; Željko Puljiz; Andre Bratanić; Branko Troskot; Dražen Zekanović


Digestive Diseases and Sciences | 2012

The Influence of Etiologic Factors on Clinical Outcome in Patients with Peptic Ulcer Bleeding

Neven Ljubičić; Željko Puljiz; Ivan Budimir; Alen Bišćanin; Andre Bratanić; Tajana Pavić; Marko Nikolić; Davor Hrabar; Vladimir Supanc


Acta Clinica Croatica | 2013

Endoscopic balloon dilatation of postsurgical intestinal strictures in Crohn's disease: case report and review of the literature.

Neven Ljubičić; Alen Bišćanin; Ines Nikić; Ivan Budimir; Marko Nikolić; Tajana Pavić


World Journal of Gastroenterology | 2017

Scoring systems for peptic ulcer bleeding: Which one to use?

Ivan Budimir; Sanja Stojsavljević; Neven Baršić; Alen Bišćanin; Gorana Mirošević; Sven Bohnec; Lora Stanka Kirigin; Tajana Pavić; Neven Ljubičić

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