Search results for "colonic"
showing 10 items of 329 documents
A Proposal for Novel Standards of Histopathology Reporting for D3 Lymphadenectomy in Right Colon Cancer: The Mesocolic Sail and Superior Right Colic …
2020
Background Strong agreement exists concerning the standards of pathologic reporting for total mesorectal excision and complete mesocolic excision. It represents a quality standard that correlates with survival. However, no agreed standards of reporting are available to define D3 lymphadenectomy for right colectomy. Objective The purpose of this study was to define anatomopathological standards of specimen quality obtained from the surgical specimen when an oncologic right hemicolectomy with D3 lymphadenectomy has been correctly performed. Design This study was conducted in 2 different phases. The first part consisted of a cadaver-based study of right colon anatomy, and the second part consi…
Impact of perioperative transfusions and sepsis on long-term oncologic outcomes after curative colon cancer resection. A retrospective analysis of a …
2020
Objective: Intra-abdominal septic complications (IASC) affect short-term outcomes after surgery for colon cancer. Blood transfusions have been associated with worse short-term results.The role of IASC and blood transfusions on long-term oncologic results is still debated. This study aims to assess the impact of these two variables on survival after curative colon cancer resection. Patients and methods: Retrospective analysis of a prospectively maintained database of patients who underwent curative surgery for colon cancer at a university hospital, between 1993 and 2010. Cox regression was used to identify the role of IASC and transfusions (alone and combined) on local recurrence (LR), disea…
Pringle maneuver increases the risk of anastomotic leakage after colonic resection in rats.
2018
Abstract Background Many centers use the Pringle's maneuver during liver resections. Since this maneuver might impair healing of bowel anastomoses, we evaluated its influence on the healing of colonic anastomosis in rats. Methods Male Wistar rats underwent median laparotomy and sigmoid resection with end-to-end anastomosis under inhalation anesthesia. Thereafter, rats received a 25 minutes Pringle's maneuver (PM, group 1) or were kept under anesthesia for the same period of time (group 2). The anastomotic bursting pressure (BP) was measured on postoperative days (POD) 3, 6 and 9. Hematoxylin and Eosin (H&E) staining was used for histopathological evaluation of the anastomosis. The Mann-Whit…
Colon pouch (Mainz III) for continent urinary diversion
2007
OBJECTIVE To evaluate the use of a continent cutaneous pouch made exclusively of colon (Mainz pouch III), as excellent results with the Mainz pouch III in irradiated patients suggested that the indication for this type of urinary diversion could be extended. PATIENTS AND METHODS The outcome of 24 patients with continent cutaneous urinary diversions using colon segments (Mainz pouch III) was investigated retrospectively. Overall, 22 of the patients had a malignant disease and two a benign disease; 16 had a hysterectomy and pelvic exenteration for gynaecological tumours; two men with a rhabdomyosarcoma of the prostate had a radical cystoprostatectomy; one woman had pelvic exenteration for bla…
High frequency of colorectal adenoma in patients with duodenal adenoma but without familial adenomatous polyposis
2004
Abstract Background Duodenal adenomas are extremely common in patients with familial adenomatous polyposis. However, it is uncertain whether patients with duodenal adenomas without familial adenomatous polyposis are at greater risk for colorectal neoplasia and, therefore, should routinely undergo surveillance colonoscopy. The aim of this study was to determine whether there is a correlation between non-papillary duodenal adenoma without familial adenomatous polyposis and colorectal adenoma. Methods Twenty-five patients with non-papillary duodenal adenomas without familial adenomatous polyposis, seen from January 1990 to April 2003, were retrospectively evaluated. Results Non-papillary duode…
Neuromodulation of the superior hypogastric plexus: a new option to treat bladder atonia secondary to radical pelvic surgery?
2009
Abstract Background The aim of this study is to report on the impact of neuromodulation to the superior hypogastric plexus in patients with bladder atonia secondary to pelvic surgery. Methods In 4 consecutive patients with bladder atonia secondary to pelvic surgery, we performed a laparoscopic implantation of a neurostimulator—LION procedure—to the entire superior hypogastric plexus. Results Of the 4 reported patients, 3 are able to partially void or empty their bladder. Conclusions If the presented results could be obtained in further patients and maintained in long-term follow-up, the LION procedure to the superior hypogastric plexus could change the management of bladder function in pati…
In vivo efficacy of verteporfin loaded gold nanorods for combined photothermal/photodynamic colon cancer therapy.
2022
The high incidence of cancer recurrences and the frequent occurrence of multidrug resistance often stem from a poorly selective and inefficient antineoplastic therapy, responsible for the onset of undesired side effects as well. A combination of minimal-invasive approaches could thus be a useful strategy to surmount these shortcomings, achieving a safe and solid cancer therapy. Herein, a multi-therapeutic nanotool was designed by merging the photothermal properties of gold nanorods (AuNRs) with the photodynamic activity of the photosensitizer ver-teporfin. AuNRs were coated with the natural materials lipoic acid and gellan gum (AuNRs_LA,GG) and subse-quently loaded with verteporfin (AuNRs_L…
Immunomic, genomic and transcriptomic characterization of CT26 colorectal carcinoma
2013
Background Tumor models are critical for our understanding of cancer and the development of cancer therapeutics. Here, we present an integrated map of the genome, transcriptome and immunome of an epithelial mouse tumor, the CT26 colon carcinoma cell line. Results We found that Kras is homozygously mutated at p.G12D, Apc and Tp53 are not mutated, and Cdkn2a is homozygously deleted. Proliferation and stem-cell markers, including Top2a, Birc5 (Survivin), Cldn6 and Mki67, are highly expressed while differentiation and top-crypt markers Muc2, Ms4a8a (MS4A8B) and Epcam are not. Myc, Trp53 (tp53), Mdm2, Hif1a, and Nras are highly expressed while Egfr and Flt1 are not. MHC class I but not MHC class…
Hypermethylator phenotype in sporadic colon cancer: study on a population-based series of 582 cases.
2008
Abstract The CpG island methylator phenotype (CIMP) is a distinct phenotype in colorectal cancer, associated with specific clinical, pathologic, and molecular features. However, most of the studies stratified methylation according to two subgroups (CIMP-High versus No-CIMP/CIMP-Low). In our study, we defined three different subgroups of methylation (No-CIMP, CIMP-Low, and CIMP-High) and evaluated the prognostic significance of methylation status on a population-based series of sporadic colon cancers. A total of 582 colon adenocarcinomas were evaluated using methylation-specific PCR for 5 markers (hMLH1, P16, MINT1, MINT2, and MINT31). No-CIMP status was defined as no methylated locus, CIMP-…
Frequency of a positive family history of colorectal cancer in general practice: a cross-sectional study.
2016
BACKGROUND Evidence on the frequency of a positive family history of colorectal cancer (CRC) among individuals aged <55 years is lacking. General practice setting might be well suited for the identification of individuals in this above-average risk group. OBJECTIVE To determine the frequency of a reported positive family history of CRC among patients aged 40 to 54 years in a general practice setting. METHODS We conducted a cross-sectional study in 21 general practices in Germany. Patients aged 40 to 54 years were identified by means of the practice software and interviewed by health care assistants using a standardized four-item questionnaire. Outcome was occurrence of a positive family his…