surgical assessment

BACKGROUND: The assessment of liver volume (LV) is important before surgical resection or transplantation to reduce the risk of hepatic insufficiency. LV is usually measured using computed tomography or with some formulas. The aim of this study was to develop a new dynamic formula to predict LV. METHODS: Using computed tomography, LV was calculated in 101 patients without liver disease. LV was correlated with patient metabolic status, calculated with the Harris-Benedict equation for basal energy expenditure (BEE)...

PURPOSE: The purpose of the study is to evaluate the utility of apparent diffusion coefficient (ADC), chemical shift signal intensity index (SII), and contrast enhancement in distinguishing between benign lesions and renal cell carcinoma (RCC) and between subtypes of renal lesions. METHODS: This retrospective study included 98 renal lesions (≤ 3 cm) on MRI with correlative surgical pathology. Scanner field strength, lesion location, and size were recorded. Two readers blinded to surgical pathology independently measured ADC ratio (ADC lesion/ADC non-lesion kidney), SII, and absolute/relative enhancement in the corticomedullary and nephrographic phases of contrast...

The optimal management of breast cancer susceptibility gene (BRCA)1/2 carriers with isolated serous tubal intraepithelial carcinoma (STIC) found at risk-reducing salpingo-oophorectomy (RRSO) is unclear. The prevalence of occult carcinoma and STIC in a consecutive series of BRCA1/2 carriers undergoing RRSO is reported. The outcome of staging procedures in BRCA1/2 carriers with isolated STIC at RRSO as well as the relationship between staging, chemotherapy treatment and risk of recurrence was assessed via a systematic review of the literature...

BACKGROUND: Surgical treatment of odontoid fractures with posterior C1/C2 fusion always leads to severe limitations in mobility of the cervical spine and head. PURPOSE: To assess the mobility of the cervical spine in patients treated with various surgical methods after an axis body fracture. MATERIAL AND METHODS: A group of 61 subjects receiving surgical treatment in a group of 214 subjects treated for odontoid fractures at one ward of neurosurgery at a regional hospital...

OBJECTIVES: Although various implants exist for 3- and 4-part proximal humerus fractures, few implants are appropriate for humerus split type greater tuberosity fractures. The goal of this study was to assess the efficacy of pre-contoured anatomic locking plate for humerus split type greater tuberosity fractures. METHODS: A retrospective review of 68 patients with humerus split type greater tuberosity fractures treated with open reduction and internal fixation using anatomic locking plates between January 2014 and October 2016...

OBJECTIVE: To evaluate the clinical and radiologic outcomes of meniscal allograft transplantation (MAT) using a modified bone plug technique. METHODS: We conducted a retrospective single-center study of 73 patients who underwent MAT between January 2007 and December 2013. The International Knee Documentation Committee (IKDC) score, Lysholm score, Tegner score, visual analogue scale (VAS), and physical examinations were retrospectively reviewed to measure clinical outcomes after MAT, and questionnaires regarding activity and factors were analyzed...

Metabolic abnormalities occur after traumatic brain injury (TBI). Glucose is conventionally regarded as the major energy substrate, although lactate can also be an energy source. We compared 3-13C lactate metabolism in TBI with "normal" control brain and muscle, measuring 13C-glutamine enrichment to assess tricarboxylic acid (TCA) cycle metabolism. Microdialysis catheters in 9 severe TBI patients' brains, 5 non-TBI brain surgical patients, and 5 resting muscle (non-TBI) patients were perfused (24h in brain, 8h in muscle) with 8 mmol/L sodium 3‑13C lactate...

Purpose: With the emergence of next-generation sequencing (NGS) technology, profiling a wide range of genomic alterations has become a possibility resulting in improved implementation of targeted cancer therapy. In Asian populations, the prevalence and spectrum of clinically actionable genetic alterations has not yet been determined because of a lack of studies examining high-throughput cancer genomic data. Materials and Methods: To address this issue, 1,071 tumor samples were collected from five major cancer institutes in Korea and analyzed using targeted NGS at a centralized laboratory...

Purpose: We compared oncologic outcomes of patients with upper tract urothelial carcinoma (UTUC) who underwent open nephroureterectomy (ONU) or laparoscopic nephroureterectomy (LNU). Materials and Methods: Consecutive cases of ONU and LNU between 2000 and 2012 at five participating institutions were included in this retrospective analysis. Clinical characteristics and pathologic outcomes were compared between the two surgical approaches. The influence of the type of surgical approach on intravesical recurrence-free survival (IVRFS), progression-free survival (PFS), cancer-specific survival (CSS), and overall survival (OS) was analyzed using the Kaplan-Meier method and differences were assessed with the log-rank test...

BACKGROUND:  The prevalence of malignancy in patients with small solid pancreatic lesions is low; however, early diagnosis is crucial for successful treatment of these cases. Therefore, a method to reliably distinguish between benign and malignant small solid pancreatic lesions would be highly desirable. We investigated the role of endoscopic ultrasound (EUS) elastography in this setting. METHODS:  Patients with solid pancreatic lesions ≤ 15 mm in size and a definite diagnosis were included...

OBJECTIVE: To observe outcomes of anterior controllable antedisplacement fusion (ACAF) in the treatment for degenerative kyphosis with stenosis (DKS) and analyze the probability of C5 nerve palsy. METHODS: In the period from 2016 to 2017, a consecutive cohort of adults with DKS underwent ACAF. All these patients were performed cervical plain films, CT and MRI. The operation duration, blood loss and hospital stay was estimated. Radiologic assessment included kyphotic correction, decompression width and spinal canal area...

BACKGROUND: Overall complication rates for adult spinal deformity (ASD) surgery have been reported, however little data exists on the peak timing associated with specific complications. This study quantifies the peak timing for multiple complication types in an ASD cohort at minimum 2-year follow up. METHODS: Multi-center, prospective analysis of all complications following ASD surgery in a consecutively enrolled cohort was performed. Inclusion criteria were ASD, age ≥ 18 years, spinal fusion ≥ 4 levels, and minimum 2-year follow-up...

STUDY DESIGN: A retrospective review of a prospectively collected multicenter database OBJECTIVE.: To assess the effect of proximal hooks vs. screws on proximal junctional kyphosis (PJK) as well as shoulder balance in otherwise all pedicle screw (>80%) posterior spinal fusion (PSF) constructs in adolescent idiopathic scoliosis (AIS). SUMMARY OF BACKGROUND DATA: Less rigid forms of fixation at the top of constructs in degenerative lumbar PSF have been postulated to decrease the risk of PJK...

BACKGROUND: Although diabetes mellitus (DM) has been established as a risk factor for infection after lower extremity arthroplasty, no association has been reported with shoulder arthroplasty. METHODS: We queried a national database for patients with DM who underwent primary shoulder arthroplasty. We identified perioperative hemoglobin A1c (HbA1c) levels and assessed the incidence of wound complications within 6 months and deep infection that required surgical intervention within 1 year for each HbA1c level...

OBJECTIVES: We aimed to explore the correlation between perioperative symptoms of depression and anxiety with pelvic floor symptoms after urogynecologic surgery. Postoperative pain, goal attainment, quality of life, and satisfaction were assessed. METHODS: A prospective cohort study of women undergoing inpatient urogynecologic surgery was conducted. Preoperative questionnaires included Beck Depression and Beck Anxiety Inventories, Pain Catastrophizing Scale, Pelvic Floor Distress Inventory, Pelvic Floor Impact Questionnaire, and a detailed goals and perioperative supports questionnaire...

OBJECTIVE: The aim of this study was to systematically review the available clinical trials examining male infertility after inguinal hernias were repaired using mesh procedures. METHODS: The Cochrane Library, PubMed, Embase, Web of Science, and Chinese Biomedical Medicine Database were investigated. The Jada score was used to evaluate the quality of the studies, "Oxford Centre for Evidence-based Medicine-Levels of Evidence" was used to assess the level of the trials, and descriptive analysis was used to evaluate the studies...

BACKGROUND: Closing-wedge distal femoral osteotomy (CWDFO)-combined with medial reefing and lateral release, if necessary- has been used to treat recurrent patellar dislocation (RPD) with genu valgum. PURPOSE: To evaluate the clinical and radiologic outcomes of surgical treatment with CWDFO for treatment of RPD with genu valgum. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: Fourteen consecutive patients (23 knees) with RPD and genu valgum were treated with CWDFO...

BACKGROUND: In the eighth edition of the AJCC cancer staging classification, the T system for distal cholangiocarcinoma (DCC) has been revised from a layer-based to a depth-based approach. The aim of this study was to propose an optimal T classification using a measured depth in resectable DCC. METHODS: Patients who underwent pancreatoduodenectomy for DCC at 32 hospitals between 2001 and 2010 were included. The distance between the level of the naive bile duct and the deepest cancer cells was measured as depth of invasion (DOI)...

OBJECTIVES: Radiation exposure is a concern for both patients and operators during transcatheter aortic valve implantation (TAVI). Efforts to reduce radiation dose are warranted. We aimed at investigating if per-operative advanced image processing can reduce patient and operator irradiation use during TAVI. METHODS: We performed a prospective single-centre observational study comparing patient and operator radiation exposure using standard fluoroscopy (control group) or a novel technology of live advanced fluoroscopic image processing (test group) among consecutive patients undergoing TAVI between August 2015 and April 2016...

Background & Aims: The European Crohn's and Colitis Organization recommends magnetic resonance imaging (MRI) of anal fistulas to decide on the drug/surgery strategy. No evidence is available on the long-term impact of MRI features on fistula healing. The aim of this study was to evaluate the benefit of combined drug/surgery strategies for the treatment of perianal Crohn's fistulas based on MRI factors at referral. Methods: The clinical event (anal abscess, new fistula tract, cellulitis), therapeutic intervention (introduction/optimization of immunosuppressant/biologics, anal surgery, intestinal resection, stoma), and MRI data were prospectively recorded for patients with Crohn's disease (CD) and anal fistulas...