Short-term outcomes from the 'Watch and Wait' (WoW) study: prospective cohort study.

Background: Despite absence of level 1 evidence on the long-term oncological safety of non-operative management for rectal cancer (watch and wait), increased implementation has occurred globally over the past decades. In Sweden, a pan-national prospective non-randomized study was initiated in 2017 to assess its implementation.

Method: Patients with biopsy-proven rectal cancer receiving neoadjuvant therapy according to national guidelines in whom a clinical complete response was detected at reassessment were eligible for inclusion following informed consent.

Early experience of prostate artery embolization: a retrospective single-centre study.

Objective: The aim of this study was to evaluate the early experiences of prostate artery embolization (PAE) in patients with benign prostatic hyperplasia (BPH).

Material And Methods: This retrospective study included all patients treated for BPH who were referred to the radiology department for PAE in Västmanland between 2018 and 2021. Data were collected on patient demographics, International Prostate Symptom Score (IPSS), prostate-specific antigen level, and peri- and post-procedure outcomes.

Proctitis distal to colorectal anastomosis: a retrospective cohort study of an underreported complication after sigmoidectomy.

Purpose: Proctitis distal to colorectal anastomosis is rare and infrequently reported. We evaluated the incidence, symptoms, treatment, and potential risk factors associated with this condition.

Methods: We conducted a retrospective population-based cohort study in Västmanland County, Sweden.

Occurrence of metabolic syndrome in midlife in relation to cardiovascular morbidity and all-cause mortality-lessons from a population-based matched cohort study with 27 years follow-up.

Objectives: We examined how asymptomatic metabolic syndrome (MetS) in midlife affects cardiovascular (CV) morbidity and all-cause mortality later in life and studied difference in time to event and from the individual components related to MetS.

Design: Population-based matched cohort study including data from a screening programme for identification of CV risk factors.

Setting: Primary care, County of Västmanland, Sweden.

Diagnostic accuracy and safety of renal tumour biopsy in patients with small renal masses and its impact on treatment decisions.

Objective: To assess the safety and diagnostic accuracy of renal tumour biopsy (RTB) in patients with small renal masses (SRM) and to assess if RTB prevents overtreatment in patients with benign SRM.

Material And Methods: In a retrospective, single-centre study from Västmanland, Sweden, 195 adult patients (69 women and 126 men) with SRM ≤ 4 cm who had undergone RTB during 2010-2023 were included. The median age was 70 years (range 23-89).

Body mass index and risk of over 100 cancer forms and subtypes in 4.1 million individuals in Sweden: the Obesity and Disease Development Sweden (ODDS) pooled cohort study.

Background: Obesity, assessed by body mass index (BMI), is an established risk factor for 13 cancers. We aimed to identify further potential obesity-related cancers and to quantify their association with BMI relative to that of established obesity-related cancers.

Methods: Using Cox regression models on 4,142,349 individuals in Sweden (mean age 27.

The risk for rectal cancer recurrence and overall mortality is not increased in men previously diagnosed with prostate cancer: a report from the Swedish colorectal cancer registry.

Introduction: Limited data exists on oncological outcomes following rectal cancer surgery in men who have previously been diagnosed with prostate cancer (PC). This study aimed to assess overall mortality and rectal cancer recurrence in men previously diagnosed with PC who underwent bowel resection.

Methods: Data from the Swedish Colorectal Cancer Registry identified men who had rectal cancer surgery between 2000 and 2016, and the National Prostate Cancer Registry was used to identify those with a prior PC diagnosis.

Management of acute uncomplicated diverticulitis and adherence to current guidelines-a multicentre SNAPSHOT study.

Purpose: To explore whether previous participation in clinical studies increases adherence to management guidelines in acute uncomplicated diverticulitis (AUD).

Methods: This retrospective cohort study was designed to give a SNAPSHOT of the management of AUD at six hospitals, three of which had participated in the AVOD trial comparing antibiotic versus non-antibiotic treatment of AUD. Patients with AUD were included from March 2019 through June 2020 and followed for 90 days.

Time trends of the association of body mass index with mortality in 3.5 million young Swedish adults.

Purpose: We investigated time trends of the obesity-mortality association, accounting for age, sex, and cause-specific deaths.

Methods: We analysed pooled nationwide data in Sweden for 3,472,310 individuals aged 17-39 years at baseline in 1963-2016. Cox regression and flexible parametric survival models investigated BMI-mortality associations in sub-groups of sex and baseline calendar years (men: <1975, 1975-1985, ≥1985 and women: <1985, 1985-1994, ≥1995).

Cohort profile: The Obesity and Disease Development Sweden (ODDS) study, a pooled cohort.

Purpose: The Obesity and Disease Development Sweden (ODDS) study was designed to create a large cohort to study body mass index (BMI), waist circumference (WC) and changes in weight and WC, in relation to morbidity and mortality.

Participants: ODDS includes 4 295 859 individuals, 2 165 048 men and 2 130 811 women, in Swedish cohorts and national registers with information on weight assessed once (2 555 098 individuals) or more (1 740 761 individuals), in total constituting 7 733 901 weight assessments at the age of 17-103 years in 1963-2020 (recalled weight as of 1911). Information on WC is available in 152 089 men and 212 658 women, out of whom 108 795 have repeated information on WC (in total 512 273 assessments).

Hartmann's Procedure Versus Intersphincteric Abdominoperineal Excision in Patients with Rectal Cancer: Report from the Swedish Colorectal Cancer Registry (SCRCR).

Objective: The primary outcome was to compare overall postoperative surgical complications within 30 days after Hartmann's procedure (HP) compared with intersphincteric abdominoperineal excision (iAPE). The secondary outcome was major surgical complications (Clavien-Dindo ≥ III).

Background: There is uncertainty regarding the optimal surgical method in patients with rectal cancer when an anastomosis is unsuitable.

Lower need for allogeneic blood transfusion after robotic low anterior resection compared with open low anterior resection: a propensity score-matched analysis.

Robotic low anterior resection (R-LAR) for rectal cancer may decrease estimated blood loss compared with open low anterior resection (O-LAR). The aim of this study was to compare estimated blood loss and blood transfusion within 30 days after O-LAR and R-LAR. This was a retrospective matched cohort study based on prospectively registered data from Västmanland Hospital, Sweden.

Increased accuracy in diagnosing diverticulitis using predictive clinical factors.

Background: The aim of this study was to identify clinical factors leading to increased diagnostic accuracy for acute colonic diverticulitis.

Methods: Patients with clinical suspicion of acute colonic diverticulitis verified with computed tomography (CT) from two hospitals in Sweden between 9 January 2017 and 31 October 2017 were prospectively included. Symptoms, comorbidities, and laboratory results were documented.

Impact of COVID-19 on the incidence of CT-diagnosed appendicitis and its complications in the UK and Sweden.

Aim: To compare the number of appendicitis cases and its complications, during the first months of the COVID-19 pandemic in Sweden and the UK and the corresponding time period in 2019.

Method: Reports of emergency abdominopelvic CT performed at 56 Swedish hospitals and 38 British hospitals between April and July 2020 and a corresponding control cohort from 2019 were reviewed. Two radiologists and two surgeons blinded to the date of cohorts analyzed all reports for diagnosis of appendicitis, perforation, and abscess.

Use of prophylactic stoma mesh is a risk factor for developing rectus abdominis muscle atrophy.

Purpose: The aim of this study was to evaluate the possible risk factors for developing a parastomal hernia (PSH) in a cohort of rectal cancer patients with and without the application of a retro-muscular prophylactic mesh. The evaluated risk factors included the position of the stoma in the rectus abdominis muscle (RAM), RAM atrophy and shift of abdominal wall midline structures.

Methods: Rectal cancer patients treated with an abdominoperineal excision or Hartmann's procedure between 2002 and 2015 at Västmanland Hospital, Sweden was included.

Blood pressure screening in midlife aids in prediction of dementia later in life.

Background: There is substantial evidence that midlife hypertension is a risk factor for late life dementia. Our aim was to investigate if even high blood pressure at a single timepoint in midlife can predict an increased risk for all-cause dementia, Alzheimer's disease (AD), or vascular dementia (VaD) later in life.

Methods: The community-based study population comprised 30,102 dementia-free individuals from the .

Risk factors for developing anorectal dysfunction after anterior resection.

Background: Anterior resection (AR) may result in defecatory dysfunction and the cause is multifactorial. The aim was to explore if dysfunction could be related to the part of the colon used for anastomosis (sigmoid or descending) and to identify other possible risk factors for bowel dysfunction after AR.

Methods: This is a retrospective study based on prospectively registered data from a regional registry at the surgical department in Västmanland 1996-2019.

Loop-ileostomy reversal in a 23-h stay setting is safe with high patient satisfaction.

Introduction: This study aimed to determine whether day-case closure of loop ileostomy with discharge within 23 h was both feasible and accepted by patients.

Materials And Methods: We conducted a prospective pilot study where selected rectal cancer patients with diverting loop ileostomy underwent stoma closure in a 23-h stay setting. Patients were followed up on the third, seventh, and 30th postoperative day and phoned daily during the first week.

Changing Paradigms in the Management of Acute Uncomplicated Diverticulitis.

Left-sided colonic diverticulitis is a common condition with significant morbidity and health care costs in Western countries. Acute uncomplicated diverticulitis which is characterized by the absence of organ dysfunction, abscesses, fistula, or perforations accounts for around 80% of the cases. In the last decades, several traditional paradigms in the management of acute uncomplicated diverticulitis have been replaced by evidence-based routines.

Risk factors for small bowel obstruction after open rectal cancer resection.

Background: Small bowel obstruction (SBO) is observed in around 10% of patients with prior open abdominal surgery. Rectal resection causes the highest readmission rates. The aim of this study was to investigate risk factors for readmission for SBO and causes for SBO in patients who needed surgery following rectal cancer surgery.

European Society of Coloproctology: guidelines for the management of diverticular disease of the colon.

Aim: The goal of this European Society of Coloproctology (ESCP) guideline project is to give an overview of the existing evidence on the management of diverticular disease, primarily as a guidance to surgeons.

Methods: The guideline was developed during several working phases including three voting rounds and one consensus meeting. The two project leads (JKS and EA) appointed by the ESCP guideline committee together with one member of the guideline committee (WB) agreed on the methodology, decided on six themes for working groups (WGs) and drafted a list of research questions.

Diagnostic accuracy of acute diverticulitis with unenhanced low-dose CT.

Background: The aim of this study was to evaluate the diagnostic accuracy of unenhanced low-dose CT (LDCT) in acute colonic diverticulitis in comparison with contrast-enhanced standard-dose CT (SDCT).

Methods: All patients with clinically suspected diverticulitis who underwent LDCT followed by SDCT between January and October 2017 were evaluated prospectively. CT examinations were assessed for signs of diverticulitis, complications and other differential diagnoses by three independent radiologists (two consultants and one fourth-year resident) using SDCT as the reference method.

Elective surgery should be considered after successful conservative treatment of recurrent diverticular abscesses.

The purpose of this study was to evaluate the disease pattern and treatment of diverticular abscesses. Patients treated for diverticulitis (K57) in Västmanland, Sweden were identified for this retrospective population-based study between January 2010 and December 2014. Patients with diverticular abscesses were included.

Observational versus antibiotic treatment for uncomplicated diverticulitis: an individual-patient data meta-analysis.

Background: Two RCTs (AVOD and DIABOLO) demonstrated no difference in recovery or adverse outcomes when antibiotics for acute uncomplicated diverticulitis were omitted. Both trials showed non-significantly higher rates of complicated diverticulitis and surgery in the non-antibiotic groups. This meta-analysis of individual-patient data aimed to explore adverse outcomes and identify patients at risk who may benefit from antibiotic treatment.

Long-term follow-up of the AVOD randomized trial of antibiotic avoidance in uncomplicated diverticulitis.

Background: The aim of this study was to assess the long-term results in patients with uncomplicated diverticulitis who had participated in the Antibiotics in Acute Uncomplicated Diverticulitis (AVOD) RCT, which randomized patients with CT-verified left-sided acute uncomplicated diverticulitis to management without or with antibiotics.

Methods: The medical records of patients who had participated in the AVOD trial were reviewed for long-term results such as recurrences, complications and surgery. Quality-of-life questionnaires (EQ-5D™) were sent to patients, who were also contacted by telephone.