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Insulinoma - Rare, But Important Clinical Problem. Analysis of a Series of 530 Patients Who Underwent Surgical Treatment for the Pancreatic Tumor

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Durczyński A., Hogendorf P., Szymański D., Izdebski W., Kaczka A., Durko Ł., Strzelczyk J.
Polish Journal of Surgery
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2015
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vol. 86
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issue 11
505-510
EN
Insulinomas are rare tumors, accounting for 1-2% of all neoplasms of the pancreas. Usually their treatment is not associated with any problems; however there is a small subset of problematic clinical cases. The authors present their own clinical experience with surgical treatment of insulinomas of the pancreas. The aim of the study was to conduct a retrospective analysis of patients with insulinomas of the pancreas who underwent surgical treatment at Department of General and Transplant Surgery Medical University in Łódź. Material and methods. The study included all patients who underwent surgical treatment at the Department between 2007 and 2013 for the tumor of the pancreas. Further retrospective analysis included all patients with tumors of the insulinoma type. The data was obtained from medical records, surgical protocols and histopathology reports. Results. The analysis included 530 patients who underwent surgical treatment for the tumor of the pancreas. Insulinoma was found in 10 (1.88%) patients (8 females, 2 males). An average age of patients who underwent surgical treatment was 47.5±13.8 years. An average size of the tumor was 1.6±0.5 cm. Six patients underwent extirpation of the insulinoma, while the other patients underwent distal resection of the pancreas. All patients underwent “an open surgical procedure”. The average duration of the surgical procedure was 55±45 minutes. Duration of the hospitalization in the analyzed group of patients was 7±5 days. Incidence of postoperative pancreatic fistulas was 10%. All insulinomas were benign. Conclusions. Insulinomas were rare among patients who underwent surgical treatment at the Department. They were benign and their treatment was unproblematic. However, there is a small group of cases that can be associated with problematic clinical situations. Thus treatment of patients with insulinomas should be conducted at specialist centers. Correct diagnostic and therapeutic management, involving close cooperation between multiple medical specialists, results in complete curing of majority of patients.
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Surgical Treatment of Neuroendocrine Tumors of the Pancreas

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Dobrowolski S., Śledziński Z., Sworczak K., Hellmann M., Babińska A.
Polish Journal of Surgery
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2010
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vol. 82
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issue 7
417-421
EN
Management of patients with neuroendocrine tumors (NETs) of the pancreas causes considerable controversy because rarity of this neoplasm.The aim of the study was to present our results of treatment of patients with NETs and to sum up our experience in surgical management.Material and methods. Thirty four patients with neuroendocrine tumors of the pancreas were treated in Department of General, Endocrine and Transplant Surgery of Medical University in Gdańsk (24 inulinomas and 10 nonfunctioning neuroendocrine tumors). Insulinoma was present in the head of the pancreas in 3 cases, in the body in 8 cases, and 10 patients had lesion situated within the tail.Results. Localization of the tumor in patients with organic hyperinsulinism was possible in 21 out of 24 operated patients (17 patients with use of preoperative imaging studies, 4 patients with Intraoperative ultrasonography). In 3 remaining patients the localization of the pathologic mass was impossible with use of pre- and intraoperative techniques.Conclusions. Treatment of choice of patients with neuroendocrine tumors of the pancreas is surgery. Management of patients with islet cells adenomatosis is still difficult clinical problem.
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Surgical Treatment of Hyperinsulinism During the Course of Pancreatic Cancer (Insulinoma) - One Center Experience

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Grygiel K., Szmidt J., Jeleńska M., Pawlak K.
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EN
Endogenic hyperinsulinism is mainly caused by neuroendocrine tumors (insulinomas) which autonomously secrete insulin. Because the symptoms are often aspecific, a considerably delay in diagnosis occurs. The treatment consists of operative removal of the tumor from the pancreas, preceded by pre-operative localization. In this article we describe our experience with surgical removal of insulinomasMaterial and methods. We retrospectively analyzed all patients with insulinoma which were treated in our center. Definitive diagnosis was made using a 72-hours glucoses fasting test. We describe the symptoms, localization techniques and the outcomes after surgery.Results. Between January 2002 and May 2011, 45 patients (35.6% men and 64.4% female) were treated in our center. The most prevalent symptoms were altered consciousness and general malaise. The combination of CT-scan and endoscopic ultrasound had the highest (90%) sensitivity to localize tumors pre-operatively. During surgery, in 40 patients (89%) the tumor could be removed by enucleation. In the other five patients partial pancreas resection was required. In 22 patients (49%) we used intra-operative insulin level measurements to confirm complete tumor resection. Within the first month after surgery, two patients (4.4%) developed acute pancreatitis, four patients (8.8%) developed a pancreatic fistula. One patient died of multi-organ-failure. All patients were free from symptoms of hyperinsulinism after the surgery and after a median follow-up of 4.5 years.Conclusions. Based on the experience with 45 patients, surgical removal, aided by pre-operative localization with CT and endoscopic ultrasonography, is an effective and safe treatment for insulinomas.
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