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ABSTRACT: The Editors welcome topical correspondence from readers relating to articles published in the Journal. Responses should be sent electronically via the BJS website (www.bjs.co.uk). All letters will be reviewed and, if approved, appear on the website. A selection of these will be edited and published in the Journal. Letters must be no more than 250 words in length. Copyright © 2012 British Journal of Surgery Society Ltd. Published by John Wiley & Sons, Ltd.
British Journal of Surgery 01/2013; 100(2):299. · 4.61 Impact Factor
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ABSTRACT: Pancreatic cancer has a dismal prognosis. Attempts have been made to improve outcome by several 5-FU based adjuvant treatment regimens. However, the results are conflicting. There seems to be a continental divide with respect to the use of 5-FU based chemoradiotherapy (CRT). Furthermore, evidence has been presented showing a different response of pancreatic head and periampullary cancer to 5-FU based CRT. Expression of thymidylate synthase (TS) has been associated with improved outcome following 5-FU based adjuvant treatment in gastrointestinal cancer. This prompted us to determine the differential expression and prognostic value of TS in pancreatic head and periampullary cancer.
TS protein expression was studied by immunohistochemistry on original paraffin embedded tissue from 212 patients following microscopic radical resection (R0) of pancreatic head (n = 98) or periampullary cancer (n = 114). Expression was investigated for associations with recurrence free (RFS), cancer specific (CSS) and overall survival (OS), and conventional prognostic factors.
High cytosolic TS expression was present in 26% of pancreatic head tumours and 37% of periampullary tumours (p = .11). Furthermore, TS was an independent factor predicting favourable outcome following curative resection of pancreatic head cancer (p = .003, .001 and .001 for RFS, CSS and OS, respectively). In contrast, in periampullary cancer, TS was not associated with outcome (all p > .10).
TS, was found to be poorly expressed in both pancreatic head and periampullary cancer and identified as an independent prognostic factor following curative resection of pancreatic head cancer.
European journal of surgical oncology: the journal of the European Society of Surgical Oncology and the British Association of Surgical Oncology 05/2012; 38(11):1058-64. · 2.56 Impact Factor
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ABSTRACT: Occasionally patients undergoing resection for presumed malignancy of the pancreatic head are diagnosed postoperatively with benign disease. Autoimmune pancreatitis (AIP) is a rare disease that mimics pancreatic cancer. We aimed to determine the prevalence of benign disease and AIP in patients who underwent pancreatoduodenectomy (PD) over a 9-year period, and to explore if and how surgery could have been avoided.
All patients undergoing PD between 2000 and 2009 in a tertiary referral centre were analyzed retrospectively. In cancer-negative cases, postoperative diagnosis was reassessed. Preoperative index of suspicion of malignancy was scored as non-specific, suggestive, or high. In AIP patients, diagnostic criteria systems were checked.
A total of 274 PDs were performed for presumed malignancy. The prevalence of benign disease was 8.4 %, overall prevalence of AIP was 2.6 %. Based on preoperative index of suspicion of malignancy, surgery could have been avoided in 3 non-AIP patients. All AIP patients had sufficient index to justify surgery. If diagnostic criteria would have been checked; however, surgery could have been avoided in one to five AIP patients.
The prevalence of benign disease in patients who underwent PD for presumed malignancy was 8.4 %, nearly one-third attributable to AIP. Although misdiagnosis of AIP as carcinoma is a problem of limited quantitative importance, every effort to establish the correct diagnosis should be undertaken considering the major therapeutic consequences. IgG4 measurement and systematic use of diagnostic criteria systems are recommended for every candidate patient for PD when there is no histological proof of malignancy.
Digestive Diseases and Sciences 05/2012; 57(9):2458-65. · 2.12 Impact Factor
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ABSTRACT: The impact of nationwide centralization of pancreaticoduodenectomy (PD) on mortality is largely unknown. The aim of this study was to analyse changes in hospital volumes and in-hospital mortality after PD in the Netherlands between 2004 and 2009.
Nationwide data on International Classification of Diseases, ninth revision (ICD-9) code 5-526 (PD, including Whipple), patient age, sex and mortality were retrieved from the independent nationwide KiwaPrismant registry. Based on established cut-off points of annually performed PDs, hospitals were categorized as very low (fewer than 5), low (5-10), medium (11-19) or high (at least 20) volume. A subgroup analysis based on a cut-off age of 70 years was also performed.
Some 2155 PDs were included. The number of hospitals performing PD decreased from 48 in 2004 to 30 in 2009 (P = 0·011). In these specific years, the proportion of patients undergoing PD in a medium- or high-volume centre increased from 52·9 to 91·2 per cent (P < 0·001). Nationwide mortality rates after PD decreased from 9·8 to 5·1 per cent (P = 0·044). The mortality rate during the 6-year period was 14·7, 9·8, 6·3 and 3·3 per cent in very low-, low-, medium- and high-volume hospitals respectively (P < 0·001). The difference in mortality between medium- and high-volume centres was statistically significant (P = 0·004). The volume-outcome relationship was not influenced by age (P = 0·467). The mortality rate after PD in patients aged at least 70 years was 10·4 per cent compared with 4·4 per cent in younger patients (P < 0·001).
With nationwide centralization of PD, the in-hospital mortality rate after this procedure decreased. Further centralization of PD is likely to decrease mortality further, especially in the elderly.
British Journal of Surgery 03/2012; 99(3):404-10. · 4.61 Impact Factor
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ABSTRACT: To analyse the extent of centralisation of pancreaticoduodenectomy (Whipple procedure) and changes in in-hospital mortality rates in the Netherlands.
Retrospective analysis.
Data on patients who had undergone pancreaticoduodenectomy (PD) during the 2004-2009 period was acquired from the Kiwa Prismant registry. Based on the number of procedures performed annually, hospitals were divided into 4 volume-categories: very-low (<5), low (5-10), medium (11-19) and high (≥20). Changes in volume and in-hospital mortality were analysed per volume category. A subgroup analysis based on age was also performed.
2155 patients who had undergone PD were included. The number of hospitals performing PD decreased from 48 in 2004 to 30 in 2009 (p = 0.01). The proportion of patients who had undergone PD in a medium- or high-volume hospital increased from 52.9% to 91.2% (p < 0.001). Post-operative mortality rates decreased from 9.8% to 5.1% (p = 0.04). Average mortality was 14.7%, 9.8%, 6.3% and 3.3% in very low-, low-, medium-, and high-volume hospitals, respectively (p < 0.001). The difference in mortality between medium- and high-volume hospitals was statistically significant (p = 0.004). The mortality rate in patients ≥ 70 years was 10.4% compared with 4.4% in younger patients (p < 0.001). CONCLUSION : Nationwide centralisation of PD is occurring in Netherlands, and this is associated with a decrease in in-hospital mortality. Further centralisation is likely to further decrease in-hospital mortality, especially in the elderly.
Nederlands tijdschrift voor geneeskunde 01/2012; 156(32):A4791.
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N A van der Gaag,
E A J Rauws, C H J van Eijck,
M J Bruno,
E van der Harst,
F J G M Kubben,
J J G M Gerritsen,
J W Greve,
M F Gerhards,
I H J T de Hingh,
J H Klinkenbijl,
C Yung Nio,
S M M de Castro,
O R C Busch,
T M van Gulik,
P M M Bosssuyt,
D J Gouma
Nederlands tijdschrift voor geneeskunde 01/2010; 154(29):A1883.
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ABSTRACT: Background: Surgery on pheochromocytoma carries a risk for hemodynamic (HD) instability. The aim of this study was to identify preoperative risk factors for intraoperative HD instability. In addition, efficacy of pretreatment with the alpha-adrenergic receptor (alpha) antagonists phenoxybenzamine (PXB) and doxazosin (DOX) was compared with respect to reduction of intraoperative HD instability. Methods: Seventy-three patients operated in Erasmus Medical Center between 1995 and 2007 were included. Parameters studied were catecholamine type and concentration, tumor diameter, mean arterial pressure (MAP) before and after (MAP(alpha)) pretreatment with alpha-antagonist, postural fall in blood pressure (BP) after pretreatment, type of alpha-blockade, type of operation, and presence of a familial polytumor syndrome. HD instability was assessed by measuring the number and time period MAP was below 60 mm Hg and systolic BP (SBP) was above 160 mm Hg. Results: A correlation was found between the intraoperative time periods of SBP above 160 mm Hg and plasma norepinephrine levels (r = 0.23; P < 0.05), tumor diameter (r = 0.36; P < 0.01), and postural BP fall (r = 0.30; P < 0.05). MAP at presentation and after alpha-blockade above 100 mm Hg (BP, 130/85 mm Hg) was related to more and longer episodes with a SBP above 160 mm Hg (P < 0.01). Type of operation or alpha-blockade and presence of a familial polytumor syndrome were not related to intraoperative HD instability. Postoperative MAP was lower in the DOX group than in the PXB group (P < 0.05). Conclusion: Risk factors for HD instability during surgery for pheochromocytoma include a high plasma NE concentration, larger tumor size, more profound postural BP fall after alpha-blockade, and a MAP above 100 mm Hg (130/85 mm Hg). Efficacy for preventing HD instability was identical for PXB and DOX.
The Journal of clinical endocrinology and metabolism 12/2009; 95(2):678-85. · 6.50 Impact Factor
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ABSTRACT: About 24 per cent of phaeochromocytomas (PCCs) and sympathetic paragangliomas (sPGLs) appear in familial cancer syndromes, including multiple endocrine neoplasia type 2, von Hippel-Lindau disease, neurofibromatosis type 1 and PCC-paraganglioma syndrome. Identification of these syndromes is of prime importance for patients and their relatives. Surgical resection is the treatment of choice for both PCC and sPGL, but controversy exists about the management of patients with bilateral or multiple tumours.
Relevant medical literature from PubMed, Ovid and Embase websites until 2009 was reviewed for articles on PCC, sPGL, hereditary syndromes and their treatment.
Genetic testing for these syndromes should become routine clinical practice for those with PCC or sPGL. Patients should be referred to a clinical geneticist. Patients and family members with proven mutations should be entered into a standardized screening protocol. The preferred treatment of PCC and PGL is surgical resection; to avoid the lifelong consequences of bilateral adrenalectomy, cortex-sparing adrenalectomy is the treatment of choice.
British Journal of Surgery 11/2009; 96(12):1381-92. · 4.61 Impact Factor
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Cytopathology 10/2009; 21(4):270-2. · 1.59 Impact Factor
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J W Poley,
I Kluijt,
D J Gouma,
F Harinck,
A Wagner,
C Aalfs, C H J van Eijck,
A Cats,
E J Kuipers,
Y Nio,
P Fockens,
M J Bruno
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ABSTRACT: Approximately 10-15% of all pancreatic cancers (PCs) may be hereditary in origin. We investigated the use of endoscopic ultrasonography (EUS) for the screening of individuals at high risk for developing PC. In this paper the results of first-time screening with EUS are presented.
Those eligible for screening in this study were first-degree family members of affected individuals from familial pancreatic cancer (FPC) families, mutation carriers of PC-prone hereditary syndromes, individuals with Peutz-Jeghers syndrome, and mutation carriers of other PC-prone hereditary syndromes with clustering (> or =2 cases per family) of PC. All individuals were asymptomatic and had not undergone EUS before.
Forty-four individuals (M/F 18/26), aged 32-75 years underwent screening with EUS. Thirteen were from families with familial atypical multiple-mole melanoma (FAMMM), 21 with FPC, 3 individuals were diagnosed with hereditary pancreatitis, 2 were Peutz-Jeghers patients, 3 were BRCA1 and 2 were BRCA2 mutation carriers with familial clustering of PC, and 1 individual had a p53 mutation. Three (6.8%) patients had an asymptomatic mass lesion (12, 27, and 50 mm) in the body (n=2) or tail of the pancreas. All lesions were completely resected. Pathology showed moderately differentiated adenocarcinomas with N1 disease in the two patients with the largest lesions. EUS showed branch-type intraductal papillary mucinous neoplasia (IPMN) in seven individuals.
Screening of individuals at a high risk for PC with EUS is feasible and safe. The incidence of clinically relevant findings at first screening is high with asymptomatic cancer in 7% and premalignant IPMN-like lesions in 16% in our series. Whether screening improves survival remains to be determined, as does the optimal screening interval with EUS.
The American Journal of Gastroenterology 06/2009; 104(9):2175-81. · 7.28 Impact Factor
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ABSTRACT: To address the role of a dedicated radiologist and high quality CT scanning in staging of patients referred with suspected locally advanced pancreatic cancer. Furthermore, the value of laparoscopy in detecting CT-occult metastases in these patients was assessed.
In a prospective cohort study, 116 patients with suspected unresectable pancreatic cancer referred from peripheral hospitals (107) or our own gastroenterology department (9) were analysed. CT scans from referral centres were reviewed and in case of locally advanced disease or uncertain metastatic disease, patients underwent a laparoscopy to detect CT-occult metastases. Patients without metastases were offered 5-FU based chemoradiotherapy.
After reviewing 107 abdominal CT scans from referral centres, 73 (68%) scans had to be repeated due to unacceptable quality. Locally advanced disease was confirmed in 59 (55%) patients and metastatic disease was found in 24 patients (22%). During laparoscopy, metastases were found in 24/68 (35%) patients with locally advanced disease on CT scan and metastases were confirmed in 3/5 (60%) with suspected metastases. Overall, only 46/116 (40%) patients with suspected unresectable disease appeared to have locally advanced pancreatic cancer after adequate staging including laparoscopy in our centre.
Correct staging is difficult in patients with suspected locally advanced pancreatic cancer and should preferably be performed in centres with technically advanced equipment and experienced radiologists. Laparoscopy should be offered to patients before locoregional therapy.
European journal of surgical oncology: the journal of the European Society of Surgical Oncology and the British Association of Surgical Oncology 03/2009; 35(9):963-8. · 2.56 Impact Factor
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British Journal of Surgery 01/2009; 95(12):1541-2. · 4.61 Impact Factor
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ABSTRACT: Obstruction of the pancreatic duct can lead to pancreatic fibrosis. We investigated the correlation between the extent of pancreatic fibrosis and the postoperative exocrine and endocrine pancreatic function.
Fifty-five patients who were treated for pancreatic and periampullary carcinoma and 19 patients with chronic pancreatitis were evaluated. Exocrine pancreatic function was evaluated by fecal elastase-1 test, while endocrine pancreatic function was assessed by plasma glucose level. The extent of fibrosis, duct dilation and endocrine tissue loss was examined histopathologically.
A strong correlation was found between pancreatic fibrosis and elastase-1 level less than 100 microg/g (p < 0.0001), reflecting severe exocrine pancreatic insufficiency. A strong correlation was found between pancreatic fibrosis and endocrine tissue loss (p < 0.0001). Neither pancreatic fibrosis nor endocrine tissue loss were correlated with the development of postoperative diabetes mellitus. Duct dilation alone was neither correlated with exocrine nor with endocrine function loss.
The majority of patients develop severe exocrine pancreatic insufficiency after pancreatoduodenectomy. The extent of exocrine pancreatic insufficiency is strongly correlated with preoperative fibrosis. The loss of endocrine tissue does not correlate with postoperative diabetes mellitus. Preoperative dilation of the pancreatic duct per se does not predict exocrine or endocrine pancreatic insufficiency postoperatively.
Digestive surgery 10/2008; 25(4):311-8. · 1.37 Impact Factor
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ABSTRACT: Pancreas-preserving total duodenectomy (PPTD) was introduced as a replacement for pancreatoduodenectomy (PD) for familial adenomatous polyposis (FAP). This study analysed the results of PPTD in the Netherlands and reviewed the relevant literature.
All 26 patients who underwent PPTD for FAP in four centres in the Netherlands between January 2000 and January 2007 were compared with a group of 77 patients who had PD for ampulla of Vater adenocarcinoma at one centre during the same interval.
Morbidity rates were similar after PPTD for FAP (16 patients, 62 per cent) and PD for ampulla of Vater adenocarcinoma (44 patients, 57 per cent) (P = 0.694). One patient (4 per cent) died after PPTD and two (3 per cent) after PD. A review of the literature, including patients from the present study, found that 71 patients had PPTD, with postoperative morbidity in 36 (51 per cent) and one death (1 per cent). In publications containing a total of 94 patients who underwent PD for FAP, 43 (46 per cent) developed complications and three (3 per cent) died.
PPTD has similar short-term results to PD in terms of morbidity and mortality.
British Journal of Surgery 10/2008; 95(11):1380-6. · 4.61 Impact Factor
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ABSTRACT: Surgical resection remains the most effective therapy for metastatic colorectal cancer confined to the liver, although the extrahepatic recurrence rate is high.
To develop a mammal model in order to investigate by which mechanisms liver surgery affects distant tumour recurrence.
In this animal study the effect of partial hepatectomy (phX) on the development of tumour noduli in the lungs was evaluated. CC531 rat colon carcinoma cells were inoculated i.v. 24h before, during or 24h after surgery. Rat serum was obtained at different time-points after phX and added to in vitro CC531 cell cultures. Finally, phX was compared with an ileum resection (ilX).
phX leads to increased tumour noduli in the lungs, compared to Sham operation (p=0.002), but only when performed directly before the injection of tumour cells and not when performed 24h before or after the inoculation. Comparable results were obtained for ilX. No growth stimulation of tumour cells after incubation with rat serum, obtained at different time-points after phX, could be detected in vitro.
Not only phX, but also surgery, in general promotes distant tumour recurrence exerting the effect during the early phase of tumour cell adhesion and not during tumour outgrowth.
European journal of surgical oncology: the journal of the European Society of Surgical Oncology and the British Association of Surgical Oncology 05/2008; 34(4):469-75. · 2.56 Impact Factor
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M G H Besselink,
H C van Santvoort,
E Buskens,
M A Boermeester,
H van Goor,
H M Timmerman,
V B Nieuwenhuijs,
T L Bollen,
B van Ramshorst,
B J M Witteman, [......],
M A Brink,
A F M Schaapherder,
C H C Dejong,
P J Wahab,
C J H M van Laarhoven,
E van der Harst, C H J van Eijck,
M A Cuesta,
L M A Akkermans,
H G Gooszen
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ABSTRACT: To evaluate whether enteral prophylaxis with probiotics in patients with predicted severe acute pancreatitis prevents infectious complications.
Multicentre, randomised, double-blind, placebo-controlled trial.
A total of 296 patients with predicted severe acute pancreatitis (APACHE II score > or = 8, Imrie score > or = 3 or C-reactive protein concentration > 150 mg/l) were included and randomised to one of two groups. Within 72 hours after symptom onset, patients received a multispecies preparation of probiotics or placebo given twice daily via a jejunal catheter for 28 days. The primary endpoint was the occurrence of one of the following infections during admission and go-day follow-up: infected pancreatic necrosis, bacteraemia, pneumonia, urosepsis or infected ascites. Secondary endpoints were mortality and adverse reactions. The study registration number is ISRCTN38327949.
Treatment groups were similar at baseline with regard to patient characteristics and disease severity. Infections occurred in 30% of patients in the probiotics group (46 of 152 patients) and 28% of those in the placebo group (41 of 144 patients; relative risk (RR): 1.1; 95% CI: 0.8-1.5). The mortality rate was 16% in the probiotics group (24 of 152 patients) and 6% (9 of 144 patients) in the placebo group (RR: 2.5; 95% CI: 1.2-5.3). In the probiotics group, 9 patients developed bowel ischaemia (of whom 8 patients died), compared with none in the placebo group (p = 0.004).
In patients with predicted severe acute pancreatitis, use of this combination of probiotic strains did not reduce the risk of infections. Probiotic prophylaxis was associated with a more than two-fold increase in mortality and should therefore not be administered in this category of patients.
Nederlands tijdschrift voor geneeskunde 03/2008; 152(12):685-96.
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ABSTRACT: The evidence on the efficacy of somatostatin analogues in the treatment of hepatocellular carcinoma (HCC) in humans is conflicting. A variety of human tumors demonstrate somatostatin receptors. All subtypes bind human somatostatin with high affinity, while somatostatin analogues bind with high affinity to somatostatin receptor subtype 2 (sst2). We investigated the sst2 expression in HCC and examined whether HCCs expressing sst2 are a distinct subgroup.
Forty-five human HCCs were tested for sst2 expression and biological alterations. The proliferative capacity was determined with Ki67 immunostaining and the DNA ploidy status was measured by fluorescent in situ hybridization with a chromosome 1-specific repetitive DNA probe. Expression of tumor suppressor genes (p16, p53 and Rb1) was measured by immunohistochemistry.
sst2 expression was detected in 30 tumors (67%). No correlation existed between sst2 expression and the immunoprofiles of the tumor suppressor genes, aneuploidy, proliferation, age, gender, alpha-fetoprotein levels, tumor size, tumor grade and underlying liver disease.
In 67% of the patients with HCC, sst2 could be detected in the tumor. No clinical, pathological or biological characteristics were specific for sst2-positive tumors.
Digestive surgery 02/2008; 25(1):21-6. · 1.37 Impact Factor
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ABSTRACT: Gastrojejunostomy (GJJ) and duodenal stent placement are the most commonly used palliative treatment modalities for gastric outlet obstruction (GOO). In this retrospective study, we compared GJJ and stent placement with regard to medical effects.
Medical records of 95 patients who had undergone palliative treatment between 1994 and 2006 in a Dutch university hospital, were reviewed. Study outcomes were improvement of food intake, complications, persistent and recurrent symptoms, re-interventions, hospital stay, and survival.
Fifty-three patients were referred for duodenal stent placement and 42 patients underwent GJJ. There were no differences in technical and clinical success and the incidence of minor and early major complications and survival. Food intake improved more rapidly after stent placement than GJJ (P = 0.01). The time to late major complications, recurrent obstructive symptoms and re-intervention was significantly shorter after stent placement than GJJ (P = 0.004, 0.002, and 0.004, respectively). Hospital stay was also shorter after stent placement than GJJ (P < 0.001).
These findings suggest that stent placement is associated with better short-term outcomes and GJJ with better long-term outcomes. A large randomized controlled trial is however needed to systematically compare stent placement with GJJ with regard to medical effects, quality of life and costs.
Journal of Surgical Oncology 10/2007; 96(5):389-96. · 2.10 Impact Factor
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ABSTRACT: Surgical handling of the peritoneum causes an inflammatory reaction, during which a potentially lethal cocktail of active mediators is produced, including cytokines and growth factors. The aim of this study was to investigate the effects of inflammatory cytokines on the interaction between tumor and mesothelial cells. Tumor cell adhesion to a mesothelial monolayer was assessed after preincubation of the mesothelium with interleukin (IL)-1beta, IL-6, and tumor necrosis factor (TNF)-alpha. Preincubation of the mesothelial monolayer with IL-1beta or TNF-alpha resulted in enhanced tumor cell adhesion of Caco2 and HT29 colon carcinoma cells. The amount of stimulation for the Caco2 cells was between 20% and 40% and for HT29 cells between 30% and 70%. Blocking experiments with anti-IL-1beta and anti-TNF-alpha resulted in significant inhibition of the cytokine-stimulated tumor cell adhesion. The presented results prove that IL-1beta and TNF-alpha are significant stimulating factors in tumor cell adhesion in vitro and may therefore account for tumor recurrence to the peritoneum in vivo.
Digestive Diseases and Sciences 10/2007; 52(10):2775-83. · 2.12 Impact Factor
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ABSTRACT: To compare the results of stent placement and gastrojejunostomy in patients with malignant gastric outlet obstruction. Design. Systematic review.
PubMed was searched for relevant articles from January 1996 to January 2006 and further articles were obtained from their reference lists. Using results from these publications, average study scores for improvement of oral intake, complications, survival and costs were calculated. Results from randomized and comparative studies were pooled and odds ratios with 95% confidence intervals for improvement oforal intake and complications were calculated.
A total of 44 publications were identified, including 2 randomized trials and 6 comparative studies. Information on study outcomes was not available in all publications. Long-term effectiveness was higher after gastrojejunostomy than after stent placement, with only 1% of patients needing a reintervention after gastrojejunostomy; more patients developed minor complications after gastrojejunostomy (33%) and the post-operative hospital stay was on average 13 days longer. After stent placement obstructive symptoms were relieved in 89% of patients and this effect was observed to occur more quickly after placement (within 0-2 days). More patients (approximately 20%) required a reintervention after stent placement due to stent migration or obstruction.
Stent placement appeared to have favourable short-term results and gastrojejunostomy was associated with better long-term results. Well-performed clinical trials with an adequate number of patients were not found, which precluded more solid conclusions.
Nederlands tijdschrift voor geneeskunde 04/2007; 151(9):536-42.
