Publications by authors named "Sten Saar"

Background: There are no clinical or laboratory markers that can diagnose acute mesenteric ischemia (AMI) accurately. This study aimed to find differences in clinical and laboratory markers between arterial occlusive AMI and other acute abdominal diseases where AMI was initially suspected.

Methods: This was a post hoc study of an international prospective multicenter study where data on patients with suspected AMI were collected.

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Purpose: Emergency laparotomy (EL) encompasses procedures of varying complexity and urgency, undertaken in different clinical scenarios, leading to different risks of morbidity and mortality. We hypothesized that the increased mortality and longer postoperative length of stay (LoS) observed in frail patients are related to differences in indication for operation, a higher rate of sepsis, worse intraperitoneal soiling, and more advanced malignancy in this group.

Methods: This retrospective cohort study analysed patients entered into the National Emergency Laparotomy Audit database between January 1, 2018, and June 15, 2021, in Oxford.

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Background: The aim of this multicentre prospective observational study was to identify the incidence, patient characteristics, diagnostic pathway, management and outcome of acute mesenteric ischaemia (AMI).

Methods: All adult patients with clinical suspicion of AMI admitted or transferred to 32 participating hospitals from 06.06.

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Objective: The purpose of this study is to investigate noninferiority of postoperative oral administration of antibiotics in complicated appendicitis.

Background: Recent investigations have used exclusively intravenous administration of antibiotics when comparing outcomes of postoperative antibacterial therapy in complicated appendicitis. We hypothesized that oral antibacterial treatment results in noninferior outcomes in terms of postoperative infectious complications as intravenous treatment.

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Objective: We set out to assess the performance of the P-POSSUM and NELA risk prediction tool (NELA RPT), and hypothesized that combining them with the Clinical Frailty Scale (CFS) would significantly improve their performance. Emergency laparotomy (EL) is a high-risk surgical intervention, particularly for elderly patients with marked comorbidities and frailty. Accurate risk prediction is crucial for appropriate resource allocation, clinical decision making, and informed consent.

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Background: An emergency department thoracotomy (EDT) is performed in critically injured patients after a recent or in an imminent cardiac arrest following trauma. Emergent thoracotomy (ET) or operation room thoracotomy is reserved for more stable patients. However, the number of these interventions performed in an European settings is limited.

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Background: Laparoscopic appendectomy (LA) is the standard treatment for acute appendicitis (AA) in general population. However, the safety of LA during pregnancy has remained a matter of debate. The purpose of this study was to compare surgical and obstetrical outcomes in pregnant women who underwent LA vs.

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Purpose: A selective nonoperative management (SNOM) of penetrating abdominal injuries (PAI) is a standard of care in numerous established trauma centers. However, available evidence supporting SNOM of PAI in European settings remains scarce. Thus, we performed a multi-center study at selected Northern European trauma centers to investigate the management and outcomes of PAI.

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Background/objectives: Chronic pancreatitis (CP) is a complex disease with a high complications rate, poor quality of life and considerable mortality. Prospective investigations on long-term outcomes in chronic pancreatitis are scarce. Thus, we aimed to assess long-term survival, causes of death and impact of risk factors on survival in a cohort of surgically managed patients with chronic pancreatitis.

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Background: Blunt cardiac injuries (BCI) result in poor outcomes following chest trauma. Admission ECG and troponin levels are frequently obtained in patients with suspected BCI, nevertheless, the prognostic value of cardiac troponins remains controversial. The purpose of the current study was to review the prognostic value of elevated high-sensitivity cardiac troponin T (hs-cTnT) in patients with severe blunt chest injuries.

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Purpose: Evolving trauma system of Estonia has undergone several reforms; however, performance and outcome indicators have not been benchmarked previously. Thus, we initiated a baseline study to compare demographics, management and outcomes of severely injured patients between Southern Finland and Northern Estonia utilizing regional trauma repositories.

Methods: A comparison of data fields of the Helsinki University Hospital trauma registry (HTR) and trauma registry at the North Estonia Medical Centre in Tallinn (TTR) between 1/1/2015 and 31/12/2016 was performed.

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Background: Recent investigations noted noninferiority in short-course antimicrobial treatments following source control in abdominal infections. We set out to investigate noninferiority of a short and fixed (24 hours) antibiotic administration compared to extended treatment after source control in complicated appendicitis in a prospective single-center open-label randomized controlled trial.

Methods: After Institutional Review Board (IRB) approval, all consecutive adult patients (age, ≥ 18 years) with complicated appendicitis including gangrenous appendicitis, perforated appendicitis, and appendicitis with periappendicular abscess between May 2016 and February 2018 were randomly allocated to antibacterial therapy limited to 24 hours (short) vs.

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Background: Acute appendicitis (AA) is the most common surgical disease, and appendectomy is the treatment of choice in the majority of cases. A correct diagnosis is key for decreasing the negative appendectomy rate. The management can become difficult in case of complicated appendicitis.

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Introduction: The timing and optimal method for common bile duct (CBD) clearance and laparoscopic cholecystectomy remains controversial. Several different approaches are available in clinical practice. The current study presents the experience of two European hospitals of simultaneous laparoscopic cholecystectomy (LC) and intra-operative endoscopic retrograde cholangiopacreatography (IO-ERCP) done by surgeons.

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The current case report presents a rare complication of a significant pancreatic tail necrosis following proximal splenic artery embolization in a 32-year-old male patient involved in a motorcycle accident. Proximal angiographic embolization of the splenic injury after trauma is a widely accepted method with excellent success rate; however, possible complications may occur and has been described in the literature. Nevertheless, only a few case reports pertinent to clinically significant pancreatic tail necrosis after the SAE has been reported.

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Background: Despite significant progress in surgery, controversy persists about timing of appendectomy. Objective of this prospective observational study was to determine associations between time interval from onset of symptoms in appendicitis to appendectomy and postoperative complications.

Methods: After institutional review board approval, all adult consecutive patients subjected to emergency appendectomy between 1/9/2013 and 1/12/2014 were prospectively enrolled.

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