Publications by authors named "Katarzyna Kuśnierz"

25 Publications

  • Page 1 of 1

Pancreatic neuroendocrine carcinoma metastasis to the skin.

Endokrynol Pol 2021 Mar 22. Epub 2021 Mar 22.

5Department of Radiology and Nuclear Medicine, Medical University of Silesia, Katowice, Poland.

Opisujemy przypadek pacjentki z rozpoznaniem raka neuroendokrynnego trzustki z przerzutem do skóry. Pierwotnie, w badaniu fizykalnym stwierdzono jedynie powiększone węzły chłonne pachwinowe prawe. Pomimo wykonania wielu badań obrazowych i czynnościowych oraz przeprowadzenia licznych konsultacji specjalistycznych nie zlokalizowano ogniska pierwotnego. W wykonanych, w przebiegu choroby, kontrolnych badaniach obrazowych uwidoczniono ognisko pierwotne w trzustce. Pacjentkę zakwalifikowano do zabiegu resekcyjnego. Jednak przed planowanym zabiegiem pacjentka zauważyła szybkorosnącego guza przedramienia, który w badaniu histopatologicznym okazał się przerzutem raka neuroendokrynnego do skóry. Z powodu znacznej progresji guza trzustki odstąpiono od zabiegu operacyjnego. Pacjentkę skierowano do paliatywnego leczenia onkologicznego, którego ze względu na gwałtownie pogarszający się stan ogólny nie otrzymała. Zmarła po 6 miesiącach.
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http://dx.doi.org/10.5603/EP.a2021.0024DOI Listing
March 2021

Small Intestinal Intussusception Due to Complicated Giant Jejunal Diverticulosis.

Medicina (Kaunas) 2021 Jan 28;57(2). Epub 2021 Jan 28.

Department of Gastrointestinal Surgery, Medical University of Silesia, 40-752 Katowice, Poland.

: Jejunal diverticulosis and jejunal lipomatosis are uncommon conditions. Usually asymptomatic, they may cause severe complications in some cases. Intussusception is unusual in adults, but when diagnosed swiftly it can be treated surgically, usually with good outcome. : We present a 60-year-old female patient with a history of chronic malnutrition and anemia, complaining of acute abdominal pain, vomiting and diarrhea. Contrast-enhanced abdominal computed tomography (CT) showed intussusception, multiple giant jejunal diverticula and multiple lipomas. The patient underwent urgent surgery, but radical treatment was not possible due to the extent of the diseases. One month later, another surgery was needed due to ileostomy obstruction caused by lipomas. The patient's condition deteriorated due to malnutrition and concomitant metabolic disorders, which eventually led to her demise. : Radical treatment is not always possible in an extensive jejunal disease. Prolonged malnutrition impairs postoperative healing, and therefore surgical or nutritional treatment should be considered in jejunal diverticulosis before the onset of severe complications requiring urgent surgical intervention.
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http://dx.doi.org/10.3390/medicina57020116DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7910828PMC
January 2021

Differences between Well-Differentiated Neuroendocrine Tumors and Ductal Adenocarcinomas of the Pancreas Assessed by Multi-Omics Profiling.

Int J Mol Sci 2020 Jun 23;21(12). Epub 2020 Jun 23.

Department of Genetics, Maria Sklodowska-Curie National Research Institute of Oncology, 02-781 Warsaw, Poland.

Most pancreatic neuroendocrine tumors (PNETs) are indolent, while pancreatic ductal adenocarcinomas (PDACs) are particularly aggressive. To elucidate the basis for this difference and to establish the biomarkers, by using the deep sequencing, we analyzed somatic variants across coding regions of 409 cancer genes and measured mRNA/miRNA expression in nine PNETs, eight PDACs, and four intestinal neuroendocrine tumors (INETs). There were 153 unique somatic variants considered pathogenic or likely pathogenic, found in 50, 57, and 24 genes in PDACs, PNETs, and INETs, respectively. Ten and 11 genes contained a pathogenic mutation in at least one sample of all tumor types and in PDACs and PNETs, respectively, while 28, 34, and 11 genes were found to be mutated exclusively in PDACs, PNETs, and INETs, respectively. The mRNA and miRNA transcriptomes of PDACs and NETs were distinct: from 54 to 1659 differentially expressed mRNAs and from 117 to 250 differentially expressed miRNAs exhibited high discrimination ability and resulted in models with an area under the receiver operating characteristics curve (AUC-ROC) >0.9 for both miRNA and mRNA. Given the miRNAs high stability, we proposed exploring that class of RNA as new pancreatic tumor biomarkers.
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http://dx.doi.org/10.3390/ijms21124470DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7352720PMC
June 2020

Prospective Evaluation of the NETest as a Liquid Biopsy for Gastroenteropancreatic and Bronchopulmonary Neuroendocrine Tumors: An ENETS Center of Excellence Experience.

Neuroendocrinology 2021 24;111(4):304-319. Epub 2020 Apr 24.

Department of Endocrinology and Neuroendocrine Tumors, Medical University of Silesia, Katowice, Poland.

Background: There is a substantial unmet clinical need for an accurate and effective blood biomarker for neuroendocrine neoplasms (NEN). We therefore evaluated, under real-world conditions in an ENETS Center of Excellence (CoE), the clinical utility of the NETest as a liquid biopsy and compared its utility with chromogranin A (CgA) measurement.

Methods: The cohorts were: gastroenteropancreatic NEN (GEP-NEN; n = 253), bronchopulmonary NEN (BPNEN; n = 64), thymic NEN (n = 1), colon cancer (n = 37), non-small-cell lung cancer (NSCLC; n = 63), benign lung disease (n = 59), and controls (n = 86). In the GEPNEN group, 164 (65%) had image-positive disease (IPD, n = 135) or were image-negative but resection-margin/biopsy-positive (n = 29), and were graded as G1 (n = 106), G2 (n = 49), G3 (n = 7), or no data (n = 2). The remainder (n = 71) had no evidence of disease (NED). In the BPNEN group, 43/64 (67%) had IPD. Histology revealed typical carcinoids (TC, n = 14), atypical carcinoids (AC, n = 14), small-cell lung cancer (SCLC, n = 11), and large-cell neuroendocrine carcinoma (LCNEC, n = 4). Disease status (stable or progressive) was evaluated according to RECIST v1.1. Blood sampling involved NETest (n = 563) and NETest/CgA analysis matched samples (n = 178). NETest was performed by PCR (on a scale of 0-100), with a score ≥20 reflecting a disease-positive status and >40 reflecting progressive disease. CgA positivity was determined by ELISA. Samples were deidentified and measurements blinded. The Kruskal-Wallis, Mann-Whitney U, and McNemar tests, and the area under the curve (AUC) of the receiver-operating characteristics (ROC) were used in the statistical analysis.

Results: In the GEPNEN group, NETest was significantly higher (34.4 ± 1.8, p < 0.0001) in disease-positive patients than in patients with NED (10.5 ± 1, p < 0.0001), colon cancer patients (18 ± 4, p < 0.0004), and controls (7 ± 0.5, p < 0.0001). Sensitivity for detecting disease compared to controls was 89% and specificity was 94%. NETest levels were increased in G2 vs. G1 (39 ± 3 vs. 32 ± 2, p = 0.02) and correlated with stage (localized: 26 ± 2 vs. regional/distant: 40 ± 3, p = 0.0002) and progression (55 ± 5 vs. 34 ± 2 in stable disease, p = 0.0005). In the BPNEN group, diagnostic sensitivity was 100% and levels were significantly higher in patients with bronchopulmonary carcinoids (BPC; 30 ± 1.3) who had IPD than in controls (7 ± 0.5, p < 0.0001), patients with NED (24.1 ± 1.3, p < 0.005), and NSCLC patients (17 ± 3, p = 0.0001). NETest levels were higher in patients with poorly differentiated BPNEN (LCNEC + SCLC; 59 ± 7) than in those with BPC (30 ± 1.3, p = 0.0005) or progressive disease (57.8 ± 7), compared to those with stable disease (29.4 ± 1, p < 0.0001). The AUC for differentiating disease from controls was 0.87 in the GEPNEN group and 0.99 in BPC patients (p < 0.0001). Matched CgA analysis was performed in 178 patients. In the GEPNEN group (n = 135), NETest was significantly more accurate for detecting disease (99%) than CgA positivity (53%; McNemar test χ2 = 87, p < 0.0001). In the BPNEN group (n = 43), NETest was significantly more accurate for disease detection (100%) than CgA positivity (26%; McNemar's test χ2 = 30, p < 0.0001).

Conclusions: The NETest is an accurate diagnostic for GEPNEN and BPNEN. It exhibits tumor biology correlation with grading, staging, and progression. CgA as a biomarker is significantly less accurate than NETest. The NETest has substantial clinical utility that can facilitate patient management.
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http://dx.doi.org/10.1159/000508106DOI Listing
April 2020

Primarily resectable pancreatic adenocarcinoma - to operate or to refer the patient to an oncologist?

Crit Rev Oncol Hematol 2019 Mar 25;135:95-102. Epub 2019 Jan 25.

Department of Radiotherapy, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia, Katowice, Poland.

The aim of this work is to investigate the optimal therapeutic sequence of resectable pancreatic cancer - primary surgery with adjuvant therapy or neoadjuvant followed by resection. Application of the neoadjuvant approach in routine treatment of pancreatic cancer is rapidly growing every year, despite the lack of final results from randomized trials. Recent advancements in the adjuvant therapy, due to the more effective chemotherapy regimens, favor the upfront surgery strategy. On the other hand, theoretical background and metaanalyses favor the neoadjuvant strategy. Currently, primary resection with adjuvant chemotherapy remains the standard approach in resectable pancreatic cancer, but the first recommendations considering the neoadjuvant approach as an option seem to arise among the scientific societies with a global impact. Preliminary results of Prodige 24 study and PREOPANC-1 trial demonstrates that both options are worth further evaluation in clinical trials. Their results should soon provide more answers to this important clinical questions.
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http://dx.doi.org/10.1016/j.critrevonc.2019.01.010DOI Listing
March 2019

Pancreaticopleural and pancreaticomediastinal fistula extending to the cervical region, with dysphagia as initial symptom: A case report.

Medicine (Baltimore) 2019 Feb;98(5):e14233

Department of Gastrointestinal Surgery, Medical University of Silesia, Katowice, Poland.

Rationale: Pancreaticopleural and pancreaticomediastinal fistulas are rare complications of pancreatitis. They are often misdiagnosed and there are no strict guidelines of treatment. In this study, we present a brief report of a combined pancreaticopleural and pancreaticomediastinal fistula extending to the cervical region, causing dysphagia and cervical swelling as initial symptoms.

Patient Concerns: A 36-year-old female with history of alcohol abuse and pancreatitis presented progressing dysphagia and mild dyspnea on admission.

Diagnosis: Chest X-ray and chest and abdominal computed tomography scan (CT) indicated pancreaticopleural fistula combined with pancreaticomediastinal fistula, a diagnosis confirmed by high amylase levels in pleural fluid.

Interventions: Conservative treatment was administered and ERCP was performed but pancreatic duct stenting was impossible. The patient presented rapid anterior cervical swelling with progressing dysphagia and dyspnea. CT showed fistula penetration to the cervical region. The patient underwent urgent surgery and pancreaticojejunal anastomosis was performed.

Outcomes: The surgery led to recovery. Six months later, the patient reported good health and weight gain.

Lessons: Coexistence of pancreaticopleural and pancreaticomediastinal fistula with cervical penetration is an extremely rare pancreatitis complication. It presents with dysphagia and anterior cervical swelling as initial symptoms. It is important to consider this complication in all patients with history of pancreatitis, presenting with dysphagia.
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http://dx.doi.org/10.1097/MD.0000000000014233DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6380760PMC
February 2019

Roux-en-Y duodenojejunostomy improves gastric emptying in experimental obstruction of the distal duodenum.

PLoS One 2018 28;13(6):e0199759. Epub 2018 Jun 28.

Department of Gastrointestinal Surgery, School of Medicine, Medical University of Silesia, Katowice, Poland.

Introduction: We undertook a comparative survey of gastric emptying (GE) kinetics after two variants of bypass surgery for upper bowel obstruction.

Material & Methods: In 10 dogs with experimental upper bowel obstruction, five were randomized to obtain gastrojejunal anastomosis (GA), and the other five received Roux-en-Y duodenojejunal anastomosis (DA). Duplicate scintigraphic measurements of GE of a solid meal were accomplished in every animal before surgery and during the early (2-3 weeks), medium (3 months), and late (6 months) post-operative period. The GE curves were fitted with a power-exponential function to derive the GE half time T½, and the curve shape parameter S.

Results: Early after surgery T½ slightly decreased by -18±21 min in the DA group and lengthened by 91±37 min in the GA group (p = 0.042). In both groups an increase in the S parameter was found then. In either group T½ gradually declined towards the basal value during the medium and late post-operative period. On the other hand, net differences relative to the basal situation in the S values appeared to be positive in the GA group (0.32±0.11 at 3 months; 0.64±0.19 at six months), and negative in the DA group (-0.30±0.09 at 3 months; -0.01±0.20 at six months). Hence a statistically significant contrast was found between those differences: p = 0.0022 at 3 months, and p = 0.045 at six months after the surgery.

Conclusion: Roux-en-Y duodenojejunal anastomosis appears to be superior to the classical gastrojejunal anastomosis while restoring patency of the gastrointestinal passage in the case of upper bowel obstruction.
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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0199759PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6023136PMC
December 2018

Absorbable sutures in general surgery - review, available materials, and optimum choices.

Pol Przegl Chir 2018 Apr;90(2):34-37

Department of General, Endocrine and Oncological Surgery, Multispecialty Hospital, Jaworzno; Head: Józef Kurek MD PhD.

Sutures are the most versatile materials used in surgery. Despite recent technological advances and availability of novel materials such as tissue cements, it appears that surgical sutures will continue to be used for many years to come. The objective of this study was to provide an overview of the most common absorbable sutures used in general surgery. The appropriate suture choice for a particular procedure is of key importance for the success of that procedure.
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http://dx.doi.org/10.5604/01.3001.0010.5632DOI Listing
April 2018

Diagnostic and therapeutic guidelines for gastro-entero-pancreatic neuroendocrine neoplasms (recommended by the Polish Network of Neuroendocrine Tumours).

Endokrynol Pol 2017 ;68(2):79-110

Klinika Endokrynologii i Nowotworów Neuroendokrynnych, Katedra Patofizjologii i Endokrynologii, Śląski Uniwersytet Medyczny.

Progress in the diagnostics and therapy of gastro-entero-pancreatic (GEP) neuroendocrine neoplasms (NEN), the published results of new randomised clinical trials, and the new guidelines issued by the European Neuroendocrine Tumour Society (ENETS) have led the Polish Network of Neuroendocrine Tumours to update the 2013 guidelines regarding management of these neoplasms. We present the general recommendations for the management of NENs, developed by experts during the Third Round Table Conference - Diagnostics and therapy of gastro-entero-pancreatic neuroendocrine neoplasms: Polish recommendations in view of current European recommenda-tions, which took place in December 2016 in Żelechów near Warsaw. Drawing from the extensive experience of centres dealing with this type of neoplasms, we hope that we have managed to develop the optimal management system, applying the most recent achievements in the field of medicine, for these patients, and that it can be implemented effectively in Poland. These management guidelines have been arranged in the following order: gastric and duodenal NENs (including gastrinoma); pancreatic NENs; NENs of the small intestine and appendix, and colorectal NENs.
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http://dx.doi.org/10.5603/EP.2017.0015DOI Listing
July 2017

Colorectal neuroendocrine neoplasms - management guidelines (recommended by the Polish Network of Neuroendocrine Tumours).

Endokrynol Pol 2017 ;68(2):250-260

Neuroendocrine neoplasms/tumours (NENs/NETs) of the large intestine are detected increasingly often, especially rectal tumours, which is probably associated with the widespread use of screening colonoscopy. There is a growing body of evidence supporting the thesis that the NENs of the rectum and the NENs of the colon are two different diseases. Rectal NENs are usually small lesions, of low to moderate histological malignancy, associated with good prognosis, and most may be treated endoscopically. NENs of the colon, however, are often aggressive, poorly differentiated, associated with a poor or uncer-tain prognosis, and require surgical treatment. The management guidelines regarding these groups of patients are constantly changing. On the basis of the recent literature data and conclusions reached by the working meeting of the Polish Network of Neuroendocrine Tumours (December 2016), this study completes and updates the data and management guidelines regarding colorectal NENs published in Endokrynologia Polska 2013; 64: 358-368.
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http://dx.doi.org/10.5603/EP.2017.0019DOI Listing
July 2017

Neuroendocrine neoplasms of the small intestine and appendix - management guidelines (recommended by the Polish Network of Neuroendocrine Tumours).

Endokrynol Pol 2017 ;68(2):223-236

This study presents the revised Polish guidelines regarding the management of patients suffering from neuroendocrine neoplasms (NENs) of the small intestine and appendix. The small intestine, especially the ileum, is the most common location for these neoplasms. Most are well differentiated and slow growing. Their symptoms may be atypical, which can result in delayed or accidental diagnosis. Appendicitis is usually the first manifestation of NEN in this location. Typical symptoms of carcinoid syndrome occur in approximately 20-30% of patients suffering from small intestinal NENs with distant metastases. The main cause of death in patients with carcinoid syndrome is carcinoid heart disease. The most useful laboratory test is the determination of chromogranin A, while concentration of 5-hydroxyindoleacetic acid is helpful in the diagnostics of carcinoid syndrome. For visualisation, ultrasound, computed tomography, magnetic resonance imaging, colonoscopy, video capsule endoscopy, double-balloon enteroscopy, and somatostatin receptor scintigraphy may be used. A detailed his-tological report is crucial for the proper diagnostics and therapy of NENs of the small intestine and appendix. The treatment of choice is surgical management, either radical or palliative. The pharmacological treatment of the hormonally active and non-active small intestinal NENs as well as NENs of the appendix is based on long-acting somatostatin analogues. In patients with generalised NENs of the small intestine in progress during the SSA treatment, with good expression of somatostatin receptors, the first-line treatment should be radio-isotope therapy, while targeted therapies, such as everolimus, should be considered afterwards. When the above therapies are exhausted, in certain cases chemotherapy may be considered.
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http://dx.doi.org/10.5603/EP.2017.0018DOI Listing
July 2017

Pancreatic neuroendocrine neoplasms - management guidelines (recommended by the Polish Network of Neuroendocrine Tumours).

Endokrynol Pol 2017 ;68(2):169-197

This article presents updated diagnostic and therapeutic guidelines for the management of pancreatic neuroendocrine tumours (PNEN), proposed by the Polish Network of Neuroendocrine Tumours. The guidelines contain new data received in the years 2013-2016, which confirm previous recommendations, and have led to modification of previous guidelines or have resulted in the formulation of new guidelines. Biochemical and imaging (anatomical and functional) tests are of great importance in diagnostics, as well as histopathological diagnosis to determine the management of PNEN patients, but they must be confirmed by an immunohistochemical examination. PNEN therapy requires collaboration among the members a multidisciplinary team of specialists experienced in the management of these neoplasms. Surgery is the basic form of treatment in many cases. Further therapy requires a multidirectional procedure; therefore, the rules of biotherapy, peptide receptor radionuclide therapy, molecular targeted therapy, and chemotherapy are discussed.
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http://dx.doi.org/10.5603/EP.2017.2016DOI Listing
July 2017

Gastroduodenal neuroendocrine neoplasms, including gastrinoma - management guidelines (recommended by the Polish Network of Neuroendocrine Tumours).

Endokrynol Pol 2017 ;68(2):138-153

This paper presents the updated Polish Neuroendocrine Tumour Network expert panel recommendations on the management of neuroendocrine neoplasms (NENs) of the stomach and duodenum, including gastrinoma. The recommendations discuss the epidemiology, pathogenesis, and clinical presentation of these tumours as well as their diagnosis, including biochemical, histopathological, and localisation diagnoses. The principles of treatment are discussed, including endoscopic, surgical, pharmacological, and radionuclide treatments. Finally, there are also recommendations on patient monitoring.
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http://dx.doi.org/10.5603/EP.2017.0016DOI Listing
July 2017

Management of acute pancreatitis (AP) - Polish Pancreatic Club recommendations.

Prz Gastroenterol 2016 8;11(2):65-72. Epub 2016 Jun 8.

Department of Internal Medicine and Gastroenterology with Inflammatory Bowel Disease Subdivision, Central Clinical Hospital of the Ministry of the Interior, Warsaw, Poland; Department of the Prevention of Alimentary Tract Diseases, Faculty of Medicine and Health Science, Jan Kochanowski University, Kielce, Poland.

The presented recommendations concern the current management of acute pancreatitis. The recommendations relate to the diagnostics and treatment of early and late phases of acute pancreatitis and complications of the disease taking into consideration surgical and endoscopic methods. All the recommendations were subjected to voting by the members of the Working Group of the Polish Pancreatic Club, who evaluated them every single time on a five-point scale, where A means full acceptance, B means acceptance with a certain reservation, C means acceptance with a serious reservation, D means rejection with a certain reservation and E means full rejection. The results of the vote, together with commentary, are provided for each recommendation.
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http://dx.doi.org/10.5114/pg.2016.60251DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4916242PMC
June 2016

Standardized grossing protocol is useful for the pathology reporting of malignant neoplasms other than adenocarcinomas treated with pancreaticoduodenectomy.

Histol Histopathol 2017 02 16;32(2):177-192. Epub 2016 May 16.

Department of Histopathology, Medical University of Silesia, Katowice, Poland.

Background: There is no universally accepted protocol for gross examination of pancreaticoduodenectomy specimens. Standardized protocol (SP), known as Leeds Pathology Protocol, was previously validated in pancreatic adenocarcinoma. In this study we aimed to assess usefulness of SP in a series of specimens with pancreatic, ampullary, and duodenal malignant neoplasms other than adenocarcinomas.

Materials And Methods: SP was based on multi-colour inking and serial slicing of the specimens in a plane perpendicular to the duodenal axis. SP was used in a prospective cohort of 35 neoplasms of neuroendocrine, acinar, and solid-pseudopapillary lineage (SP cohort). Surgical margin status, primary tumour stage, and lymph node yield in SP group were compared with corresponding data of a historical cohort of 19 cases examined using non-standardized protocol (NSP). Samples examined in NSP and SP cohorts were comparable in terms of basic clinical characteristics, median tumour diameter, and distribution of histopathological diagnostic categories.

Results: In SP cohort we noticed: (1) higher rate of detection of tumour tissue at surgical margins, (2) more frequent peripancreatic fat tissue invasion, (3) higher percentage of perineural invasion, (4) larger number of lymph nodes retrieved from the specimen, in comparison to NSP group. Application of SP was associated with significantly higher number of tissue blocks taken for histology.

Conclusions: SP can be successfully applied for macroscopical examination of pancreaticoduodenectomy specimens with malignant pancreatic, ampullary, and duodenal neoplasms other than adenocarcinomas. SP with proper microscopical diagnosis enables an appropriate schedule of patients with these neoplasms to adjuvant therapy and surveillance programmes.
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http://dx.doi.org/10.14670/HH-11-781DOI Listing
February 2017

Compression Anastomosis Clips Versus a Hand-Sewn Technique for Intestinal Anastomosis in Pigs.

Adv Clin Exp Med 2015 Nov-Dec;24(6):1019-29

Department of Gastrointestinal Surgery, Medical University of Silesia, Katowice, Poland.

Background: Anastomotic dehiscence and leaks are major problems in gastrointestinal surgery and result in increased morbidity and mortality. The ideal device to create anastomoses should ensure good serosal apposition without requiring either transgression of the bowel wall or the presence of foreign material for an extended period of time.

Objectives: The aim of this experimental study was to evaluate the safety and efficacy of a new compression anastomosis clip (CAC) for jejunojejunostomies and ileocolostomies by comparing CAC anastomoses with hand-sewn (HS) anastomoses in pigs in terms of healing, breaking strength and the time to create anastomoses.

Material And Methods: The 11 pigs in the study underwent side-to-side CAC and HS jejunojejunostomies and ileocolostomies, for a total of 88 anastomoses. The pigs were sacrificed on postoperative day 5 (5 pigs) or 7 (6 pigs). Macroscopic, histopathological and breaking-strength examinations were performed. The time to create the anastomoses was recorded.

Results: Neither group had anastomotic complications such as leakage or obstruction. Macroscopic examination showed no statistically significant differences between the groups. In the CAC group, the healing process was characterized by a lesser inflammatory reaction (p < 0.05) and very thin scar tissue at the anastomotic line (less collagen deposition and better epithelial regeneration), while the HS group had a much thicker anastomotic line. The breaking strength was significantly greater in the CAC group compared with the HS group (p < 0.05). The anastomosis time was shorter in the CAC group than in the HS group (p < 0.01).

Conclusions: Anastomosis using a CAC appears to be safe and less time-consuming than HS; it was also characterized by a good healing process with little inflammatory reaction and a high breaking strength compared with HS anastomosis.
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http://dx.doi.org/10.17219/acem/50070DOI Listing
March 2016

Long term results of the use of compression anastomosis clips (CAC) in gastrointestinal surgery – the first report.

Pol Przegl Chir 2015 Jun;87(6):295-300

Unlabelled: The aim of the study was to present the first long-term results on the clinical use of compression anastomosis clips (CAC) in upper and lower gastrointestinal tract anastomoses.

Material And Methods: The study included 50 patients who underwent anastomosis of the upper (n = 32) or lower GI tract (n = 18) with the use of CAC. In the period of 6-7 months after the surgery, patients underwent endoscopic examination and computed tomography evaluation of the anastomosis. Each anastomosis was evaluated macro and microscopically. The width of anastomoses was evaluated using a 4-point-scale for grading stenosis.

Results: Of the 50 patients who underwent anastomosis with compression anastomosis clip, 28 (56%) patients reported to the follow-up examination within 190-209 days of the execution of the anastomosis. Among the 22 patients who did not report to the study, 18 (36%) patients died within 91-154 days from the execution of the anastomosis (mean 122 days), 4 (8%) patients were impossible to contact after discharge from hospital. Two mild stenoses (I0) were diagnosed; 1 of them was found in the gastroenterostomy and 1 in Braun enteroenterostomy. Microscopic changes were diagnosed in 4 anastomoses (3 gastroenterostomies, 1 Braun enteroenterostomy). Anastomoses were well-formed and wide, scars in the line of anastomoses were thin.

Conclusions: During the period of 6 months after the anastomoses performed using CAC have been formed, they were evaluated as unobstructed and functioning properly; therefore, they can be safely performed within the upper and lower gastrointestinal tract.
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http://dx.doi.org/10.1515/pjs-2015-0057DOI Listing
June 2015

Results of surgical management of renal cell carcinoma metastatic to the pancreas.

Contemp Oncol (Pozn) 2015 18;19(1):54-9. Epub 2014 Oct 18.

Department of Gastrointestinal Surgery, Medical University of Silesia, Katowice, Poland.

Aim Of The Study: Metastases from renal cell carcinoma represent between 0.25% and 3.00% of all resected pancreatic tumours. The aim of this study was to review 13 patients with renal cell carcinoma metastatic to the pancreas.

Material And Methods: Clinical data, time from initial presentation, operative outcome, long-term survival, tumour size, presence of lymphatic invasion, and surgical margin status were evaluated.

Results: The median age of the patients was 62 years (mean 60.9). The median time for appearance of metastatic disease following resection of the primary tumour was 9 years (mean 8.38). Pancreatic metastases were located in the head of the pancreas in four patients, in the body in three, in the tail in two patients, and four patients had multiple pancreatic localisations. Four (30.7%) pancreatoduodenectomies, 5 (38.5%) distal resections, 2 (15.3%) total pancreatectomies, 1 (7.6%) enucleation, and 1 (7.6%) Roux duodenojejunostomy were performed. Two patients (15.3%) had postoperative complications. Operative mortality was 0%. Surgical margins were microscopically positive in 1 (8.3%) patient, and lymph nodes were positive in 2 (16.6%) patients. In our group of 7 deceased patients the mean survival was 19 months (median 16 months).

Conclusions: Renal cell carcinoma metastatic to the pancreas can occur several years after nephrectomy. In our series a large number of patients with occurrence of symptoms, advancement of tumours, metastases to lymph node, and positive margin were connected with short survival period. Early detection of primary tumour, long and thorough patient care, and radical resections give patients a chance for a prolonged life.
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http://dx.doi.org/10.5114/wo.2014.45306DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4507895PMC
July 2015

A comparison of two invagination techniques for pancreatojejunostomy after pancreatoduodenectomy.

Gastroenterol Res Pract 2015 17;2015:894292. Epub 2015 Mar 17.

Department of Gastrointestinal Surgery, Medical University of Silesia, 14 Medykow Street, 40-752 Katowice, Poland.

Background. The aim of the study was to compare two invagination techniques for pancreatojejunostomy after pancreatoduodenectomy. Methods. For effective prevention of the development of pancreatic leakage, we modified invagination technique that we term the "serous touch." We analysed the diameter of the main pancreatic duct, the texture of the remnant pancreas, the method of the reconstruction, pancreatic external drainage, anastomotic procedure time, histopathological examination, and postoperative complications. Results. Fifty-two patients underwent pancreatoduodenectomy with pancreatojejunostomy using "serous touch" technique (ST group) and 52 classic pancreatojejunostomy (C group). In the ST group one patient (1.9%) was diagnosed as grade B pancreatic fistula, and no patient experienced fistula grade A or C. In the C group 6 patients (11.5%) were diagnosed as fistula grade A, 1 (1.9%) patient as fistula grade B, and 1 (1.9%) patient as fistula grade C. There was a significant statistical difference in incidents of pancreatic fistula (P < 0.05) and no statistical difference in other postoperative complications or mortality in comparison group. Anastomosis time was statistically shorter in the ST group. Conclusions. "Serous touch" technique appeared to be easy, safe, associated with fewer incidences of pancreatic fistulas, and less time consuming in comparison with classical pancreatojejunostomy.
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http://dx.doi.org/10.1155/2015/894292DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4380088PMC
April 2015

Pancreatic neuroendocrine neoplasms - management guidelines (recommended by the Polish Network of Neuroendocrine Tumours).

Endokrynol Pol 2013 ;64(6):459-79

Division of Endocrinology, Department of Pathophysiology and Endocrinology, Medical University of Silesia, Katowice, Poland.

We present revised diagnostic and therapeutic guidelines for the management of pancreatic neuroendocrine neoplasms (PNENs) proposed by the Polish Network of Neuroendocrine Tumours.These guidelines refer to biochemical (determination of specific and nonspecific neuroendocrine markers) and imaging diagnostics (EUS, CT, MR, and radioisotope examination with a 68Ga or 99Tc labelled somatostatin analogue).A histopathological diagnostic, which determines the further management of patients with PNENs, must be necessarily confirmed by immunohistochemical tests. PNENs therapy requires collaboration between a multidisciplinary team of specialists experienced in the management of these neoplasms. Surgery is the basic form of treatment. Medical therapy requires a multidirectional procedure, and therefore the rules of biotherapy, peptide receptor radionuclide therapy, chemotherapy and molecular targeted therapy are discussed.
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http://dx.doi.org/10.5603/EP.2013.0031DOI Listing
September 2015

Diagnostic and therapeutic guidelines for gastro-entero-pancreatic neuroendocrine neoplasms (recommended by the Polish Network of Neuroendocrine Tumours).

Endokrynol Pol 2013 ;64(6):418-43

Division of Endocrinology, Department of Pathophysiology and Endocrinology, Medical University of Silesia, Katowice, Poland.

An increased interest in gastro-entero-pancreatic neuroendocrine neoplasms (GEP NENs) has recently been observed. These are rare neoplasms and their detection in recent years has improved. Over 50% of GEP NENs are carcinoids, and they are usually found incidentally during surgery in the small intestine and appendix and at diagnosis in distant metastases, mainly to the liver. There is a need for co-operation between specialists in various disciplines of medicine in order to work out the diagnostic and therapeutic guidelines. In this publication, we present general recommendations of the Polish Network of Neuroendocrine Tumours for the management of patients with GEP NENs, developed at the Consensus Conference which took place in Kamień Śląski in April 2013. Members of the guidelines working groups were assigned sections of the 2008 guidance to update. In the subsequent parts of this publication, we present the rules of diagnostic and therapeutic management of: - neuroendocrine neoplasms of the stomach and duodenum (including gastrinoma); - pancreatic neuroendocrine neoplasms; - neuroendocrine neoplasms of the small intestine and the appendix; - colorectal neuroendocrine neoplasms. The proposed recommendations by Polish and foreign experts representing different fields of medicine (endocrinology, gastroenterology, surgery, oncology, nuclear medicine and pathology) will be helpful in the diagnosis and treatment of GEP NENs patients.
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http://dx.doi.org/10.5603/EP.2013.0028DOI Listing
September 2015

A nickel-titanium memory-shape device for gastrojejunostomy: comparison of the compression anastomosis clip and a hand-sewn anastomosis.

J Surg Res 2014 Mar 9;187(1):94-100. Epub 2013 Oct 9.

Department of Gastrointestinal Surgery, Medical University of Silesia, Katowice, Poland.

Background: The aim of this study was to evaluate the efficacy of a compression anastomosis clip (CAC) for gastrojejunostomy and comparison of a novel technique with a hand-sewn anastomosis.

Methods: Sixty-six patients underwent gastrojejunostomy with the CAC or hand-sewn anastomosis. The time of bowel function recovery, the duration of nasogastric drainage, the time of initiation of oral feeding, the duration of postoperative hospital stay, the time needed to expel the clip, and the observation of any complications were recorded.

Results: Neither group had anastomotic complications such as leakage or obstruction. Anastomosis time was shorter in the CAC group than in the control group (P < 0.01). The mean time of clip expulsion was 15.1 ± 6.04 d. There was no statistical difference in postoperative results between the two groups. There was a moderate positive correlation between the day of first bowel movement and the day of clip expulsion (r = 0.536) and a strong correlation between the duration of nasogastric drainage and the day of clip expulsion (r = 0.881).

Conclusions: The method of using a CAC appeared to be safe, easy, inexpensive, and less time consuming. It should be taken into consideration that intra-abdominal complications may cause delayed CAC expulsion.
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http://dx.doi.org/10.1016/j.jss.2013.10.003DOI Listing
March 2014

A duodenal duplication cyst manifested by duodenojejunal intussusception and chronic pancreatitis.

Surgery 2014 Sep 15;156(3):742-4. Epub 2013 Jun 15.

Department of Gastrointestinal Surgery, Medical University of Silesia, Medykow, Poland.

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http://dx.doi.org/10.1016/j.surg.2013.02.013DOI Listing
September 2014

NiTi shape memory compression anastomosis clip in small- and large-bowel anastomoses: first experience.

Surg Innov 2013 Dec 24;20(6):580-5. Epub 2013 Jan 24.

1Medical University of Silesia, Katowice, Poland.

The aim of the study was to present a clinical use of compression anastomosis clip (CAC) implants made of shape memory materials--nickel titanium alloys (NiTi). The concept involved in the use of CAC was to compress 2 bowel walls together, cause necrosis, and detach the CAC from the tissue to be expelled with the stool. The CAC is a double-ring elliptical device with a diameter of 30 mm. The device has the ability to recover its original closed shape when it senses a change in ambient temperature. In all, 20 anastomoses using CACs were performed: 6 of the small with the large bowel and 14 between the small bowel and small bowel. Two patients experienced complications. Although the anastomosis is not difficult to perform, the rules on how to apply the CAC must be well known. Because only a small number of anastomoses have been performed by us to date, this procedure requires further study.
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http://dx.doi.org/10.1177/1553350612474494DOI Listing
December 2013