External Validation of Prediction Models for Surgical Complications in People Considering Total Hip or Knee Arthroplasty Was Successful for Delirium but Not for Surgical Site Infection, Postoperative Bleeding, and Nerve Damage: A Retrospective Cohort Study.

Although several models for the prediction of surgical complications after primary total hip or total knee replacement (THA and TKA, respectively) are available, only a few models have been externally validated. The aim of this study was to externally validate four previously developed models for the prediction of surgical complications in people considering primary THA or TKA. We included 2614 patients who underwent primary THA or TKA in secondary care between 2017 and 2020.

Yield of endoscopy of the lower digestive tract in relation to ethnic descent.

Background: Not much is known of the yield of endoscopy in relation to ethnic descent. The aim is to study endoscopy of the lower digestive tract in relation to the ethnicity.

Methods: A prospectively collected dataset was used.

The incidence of colorectal cancer in patients with previously removed polyp(s)-a cross-sectional study.

Background: Years ago, it was established that removal of adenomas will lead to a lower incidence of colorectal cancer. This study aims to establish the occurrence of colorectal cancer in unselected patients after index colonoscopy with polyp removal.

Methods: A prospectively collected dataset on colonoscopy covering 25 consecutive years was used.

The first results of the "bevolkingsonderzoek" in the Zaanstreek region in The Netherlands.

This short communication describes the results with respect to stage of colorectal cancer in people detected via screening and patients with clinical complaints.

The Impact of Duodenal Diverticuli and the Execution of Endoscopic Retrograde Cholangiopancreaticography.

Duodenal diverticuli alter the anatomy of the papillary region and can make an ERCP difficult. To study the outcome of ERCP in cases of duodenal diverticuli. Consecutive ERCPs in a period of 24 years were included.

Individual polyp detection rate in routine daily endoscopy practice depends on case-mix.

Introduction: The adenoma detection rate (ADR), a marker of endoscopic quality, is confounded by selection bias. It is not known what the ADR is in normal daily practice.

Aim: To study the polyp detection rate (PDR) in different endoscopists in the course of years.

Prospective study of a single treatment strategy for local tumescent anesthesia in Muller phlebectomy.

Background: Ambulatory Muller phlebectomy for varicose veins can be performed under local anesthesia. However, subcutaneous injection of local tumescent anesthetics may cause discomfort because of acidity of the solution. Addition of sodium bicarbonate lowers the acidity of anesthetic solutions, which might cause less pain.

The incidence of colorectal cancer is decreasing in the older age cohorts in the zaanstreek region in the Netherlands: an age-cohort effect.

Introduction. Colorectal cancer (CRC) has a high incidence. Removal of adenomas, the precursor lesion, could be helpful in the prevention of cancer.

Experience with oesophageal cancer: a ten-year single centre study reflecting daily practice.

Introduction. Studied patients with oesophageal cancer do not represent normal daily presentation. Aim.

Palliative stenting of the digestive tract: a case series of a single centre.

Background And Aim: Obstruction of the gastrointestinal tract due to cancer can be treated with stenting. The aim was to review the local experience with endoscopic stenting. All patients treated with stenting in a ten years period from 2001-2010 were studied.

The yearly prevalence of findings in endoscopy of the lower part of the gastrointestinal tract.

Introduction. Endoscopy of the colon and rectum is increasingly used. Aim of the Study.

Takotsubo cardiomyopathy shortly following pacemaker implantation-case report and review of the literature.

We describe a patient with acute heart failure shortly after pacemaker implantation. With the documentation of typical dyskinesia of the apical segments with hyperdynamic contractility of the basal segments and a normal coronary angiogram, pacemaker implantation-induced Takotsubo cardiomyopathy was diagnosed. Supportive care was administered and within several days the patient's symptoms resolved.

The changing prevalence of upper gastrointestinal endoscopic diagnoses: a single-centre study.

Introduction: Upper gastrointestinal (GI) endoscopy is increasingly applied in daily practice. Not many data are available on yearly changes in diagnostic yield, nor on changes in morbidity.

Aim: To study the possible changes in occurrence of abnormalities in the oesophagus, stomach and duodenum.

Yearly diagnostic yield of colonoscopy in patients age 80 years or older, with a special interest in colorectal cancer.

Aim: A high diagnostic yield of colonoscopy has been reported in elderly patients, but there is no data on the yearly yield. Our aim was to detect the yearly yield of colonoscopy in elderly patients.

Methods: All consecutive endoscopies in the years 1992-2009 were included.

What is the consequence of hyperplastic polyps? Do adenomas and colorectal cancer develop in these patients? A clinical study.

Aim: Do patients with hyperplastic polyps (HP) have an increased risk for developing adenomas and colorectal cancer (CRC)? A study was done to detect the number of patients developing adenomas and CRC.

Material And Methods: From 1990-1995 all patients with a HP diagnosed via endoscopy and significant follow-up were studied. The patients were separated in three groups; Group 1 HP in patients with previous adenoma and/or CRC.

Incidence and causes of colonoscopic perforations: a single-center case series.

Perforations are known to occur after colonoscopy. In a consecutive study the localization of the perforation was determined, and the etiology of the perforation was classified as: therapeutic, barotraumatic or mechanical. A colonic perforation occurred in 26 of 19,135 patients (0.

Laparoscopic ileocolic resection versus infliximab treatment of distal ileitis in Crohn's disease: a randomized multicenter trial (LIR!C-trial).

Background: With the availability of infliximab, nowadays recurrent Crohn's disease, defined as disease refractory to immunomodulatory agents that has been treated with steroids, is generally treated with infliximab. Infliximab is an effective but expensive treatment and once started it is unclear when therapy can be discontinued. Surgical resection has been the golden standard in recurrent Crohn's disease.

Corticosteroid use and risk of aneurysmal subarachnoid haemorrhage.

Objectives: Corticosteroids can induce hypertension and inhibit collagen synthesis in the blood vessel wall. Deficiencies in collagen have been found in intracranial aneurysms. Therefore use of corticosteroids could be a risk factor for intracranial aneurysms and aneurysmal subarachnoid haemorrhage (SAH).