Publications by authors named "Broucek J"

Background: Enhanced Recovery After Surgery (ERAS) programs have spread after initial success in colorectal surgery decreasing length of stay (LOS) and decreasing opioid consumption. Adoption of ERAS specifically for ventral hernia patients remains in evolution. This study presents the development and implementation of an ERAS pathway for ventral hernia.

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Background: Perforated marginal ulcers (PMUs) are a rare but known complication of bariatric surgery. Management typically involves prompt surgical intervention, but limited data exists on non-operative approaches. This study reviews published data on non-operative management of PMUs and presents a case series of patients who were managed non-operatively.

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Background: Use of macroporous synthetic mesh in contaminated ventral hernia repair has become more frequent. The objective of this study is to compare the outcomes of ventral incisional hernia repair with permanent synthetic mesh in contaminated fields to those in a clean field.

Methods: The Abdominal Core Health Quality Collaborative registry, a prospectively updated longitudinal hernia-specific national database, was retrospectively queried for adults who underwent open ventral incisional hernia repair using light or medium-weight synthetic mesh and classified as clean (CDC Class I) or contaminated (CDC Class II/III).

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Background: Sex is emerging as an important clinical variable associated with surgical outcomes and decision making. However, its relevance in regard to baseline and treatment differences in primary and incisional ventral hernia repair remains unclear.

Study Design: This is a retrospective cohort study using the Abdominal Core Health Quality Collaborative database to identify elective umbilical, epigastric, or incisional hernia repairs.

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Background: Currently, there is no nationally accepted protocol for addressing weight regain or inadequate weight loss after MBS.

Objectives: To devise, implement, and evaluate a protocol targeting weight regain or inadequate weight loss in MBS patients at our institution.

Setting: Vanderbilt University Medical Center, Nashville, TN, United States.

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Background: Minimally invasive splenectomy (MIS) is increasingly favored for the treatment of benign and malignant diseases of the spleen over open access approaches. While many studies cite the superiority of MIS in terms of decreased morbidity and length of stay over a traditional open approach, the comparative effectiveness of specific technical and peri-operative approaches to MIS is unclear.

Objective: To develop evidence-based guidelines that support clinicians, patients, and others in decisions on the peri-operative performance of MIS.

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The objective was to find whether cow growth, milk performance, and behaviour are affected by (1) rearing conditions until weaning after a milk-fed period of 84 d and (2) the sire lineage. Thirty-five Holstein heifers were assigned to one of three treatments: SM, , pen with mother to 21st day, then group pen (they received a maximum of 6 kg of milk daily); SN, , after 3 d with own mother in pen with nursing cow (they received a maximum of 6 kg of milk daily); H, , in hutch from the 2nd to 56th day (6 kg of milk replacer daily), then loose housing pen to weaning (6 kg of milk replacer daily). After weaning at the 84th day, all heifers were kept in pens with the same ration as during calving.

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Using a GNSS RTK (Global Navigation Satellite System Real Time Kinematic) -equipped unmanned aerial vehicle (UAV) could greatly simplify the construction of highly accurate digital models through SfM (Structure from Motion) photogrammetry, possibly even avoiding the need for ground control points (GCPs). As previous studies on this topic were mostly performed using fixed-wing UAVs, this study aimed to investigate the results achievable by a quadrocopter (DJI Phantom 4 RTK). Three image acquisition flights were performed for two sites of a different character (urban and rural) along with three calculation variants for each flight: georeferencing using ground-surveyed GCPs only, onboard GNSS RTK only, and a combination thereof.

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Reprogramming the tumor microenvironment to increase immune-mediated responses is currently of intense interest. Patients with immune-infiltrated "hot" tumors demonstrate higher treatment response rates and improved survival. However, only the minority of tumors are hot, and a limited proportion of patients benefit from immunotherapies.

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The objective of this current work was to determinate the effect of high temperatures on milk production of dairy cows in southern Slovakia in the year 2015. The hypotheses that milk production is influenced by the altitude and cooling were tested. Production data included 227,500 test-day records belonging to 34 Holstein breed herds situated in lowlands, 115 to 150 m above sea level (ASL) and kept in free-stall housing.

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In pancreatic cancer, resection combined with neoadjuvant and/or adjuvant therapy remains the only chance for cure and/or prolonged survival. A minimally invasive approach to pancreatic cancer has gained increased acceptance and popularity. The aim of minimally invasive surgery of the pancreas includes limiting trauma, decreasing length of hospitalization, lessening cost, decreasing blood loss, and allowing for a more meticulous oncologic dissection.

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Background And Objectives: Image-guided navigation is an effective intra-operative technology in select surgical sub-specialties. Laparoscopic and open lymph node biopsy are frequently undertaken to obtain adequate tissue of difficult lesions. Image-guided navigation may positively augment the precision and success of surgical lymph node biopsies.

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Objective: To evaluate our experience with metastasectomy following partial response or stable disease after treatment with high-dose interleukin-2 (HD IL-2).

Methods: A total of 305 patients with metastatic renal cell carcinoma or melanoma treated with HD IL-2 over a 12-year period were reviewed. Age, objective response, and overall survival data were evaluated using standard RECIST criteria and Kaplan-Meier estimates.

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Transfer of cattle to an unknown barn may result in a reduction in its welfare. Housing and management practices can result in signs of stress that include a long-term suppression of milk efficiency. The purpose of this study was to evaluate the influence of moving cows from the stanchion-stall housing to free-stall housing on their behaviour and production.

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In light of increased cancer prevalence and cancer-specific deaths in patients with infections, we investigated whether infections alter anti-tumor immune responses. We report that acute influenza infection of the lung promotes distal melanoma growth in the dermis and leads to accelerated cancer-specific host death. Furthermore, we show that during influenza infection, anti-melanoma CD8 T cells are shunted from the tumor to the infection site, where they express high levels of the inhibitory receptor programmed cell death protein 1 (PD-1).

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Recombinant interleukin-2 (rIL-2) is associated with objective responses in 15-20 % of patients with metastatic melanoma and renal cell carcinoma. More recently, rIL-2 has also demonstrated improved clinical activity in patients with melanoma. Given the toxicity of high-dose rIL-2 and the availability of many new immunotherapy agents, it has been suggested that lower doses of rIL-2 may be preferred for combination clinical studies.

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The surgical management of melanoma has undergone considerable changes over the past several decades, as new strategies and treatments have become available. Surgeons play a pivotal role in all aspects of melanoma care: diagnostic, curative, and palliative. There is a high potential for cure in patients with early-stage melanoma and the selection of an appropriate operation is very important for this reason.

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Background: Melanoma is one of the few types of cancer with an increasing annual incidence. While a number of immunotherapies for melanoma have been associated with significant clinical benefit, including high-dose IL-2 and cytotoxic T lymphocyte antigen 4 (CTLA-4) blockade, clinical response to either of these single agents has been limited to 11-20% of treated patients. Therefore, in this study, we sought to test the hypothesis that the combination of IL-2 and CTLA-4 blockade could mediate a more profound therapeutic response.

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High-dose interleukin-2 (HD IL-2) is an approved immunotherapy agent for metastatic melanoma and renal cell carcinoma resulting in objective responses in 15-20 % of patients. An additional subset of patients achieves stable disease, and the natural history of these patients has not been well documented. We hypothesized that stable disease following HD IL-2 is associated with a survival advantage.

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High-dose interleukin-2 (HDIL2) treatment of patients with metastatic melanoma and renal cell carcinoma is associated with durable responses, but therapy is accompanied by significant toxicity related to vascular leak syndrome (VLS). Currently, the cause of VLS is not well defined; however, based on the role of endothelial cell (EC) permeability in VLS and the commonly observed hypoalbuminemia in patients receiving HDIL2 therapy, we established an in vitro approach utilizing primary human pulmonary microvascular ECs to monitor the effect of HDIL2 therapy on albumin uptake. We found that HDIL2 treatment of ECs results in albumin colocalization with caveolin-1 leading to albumin uptake by ECs.

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Background: Hiatal hernia (HH) is closely associated with morbid obesity. There is controversy over the need for preoperative imaging before laparoscopic adjustable gastric band placement. The aim of this study is to determine the predictive value of preoperatively diagnosing HH with upper gastrointestinal (UGI) series imaging.

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Background: High-dose IL-2 (HDIL2) is approved for the treatment of metastatic melanoma and renal cell carcinoma, but its use is limited in part by toxicity related to the development of vascular leak syndrome (VLS). Therefore, an understanding of the mechanisms that underlie the initiation and progression of HDIL2-induced increases in endothelial cell (EC) permeability leading to VLS are of clinical importance.

Methods: We established a novel ex vivo approach utilizing primary human pulmonary microvascular ECs to evaluate EC barrier dysfunction in response to IL-2.

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Oncolytic viruses have shown promise as gene delivery vehicles in the treatment of cancer; however, their efficacy may be inhibited by the induction of anti-viral antibody titers. Fowlpox virus is a nonreplicating and nononcolytic vector that has been associated with lesser humoral but greater cell-mediated immunity in animal tumor models. To test whether fowlpox virus gene therapy is safe and can elicit immune responses in patients with cancer, we conducted a randomized phase I clinical trial of two recombinant fowlpox viruses encoding human B7.

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Forensic dentistry plays a major role in body identification. The dental examination is very accurate and also, nowadays, in the time of a comprehensive fingerprint and DNA assessment, objectively supported. The identification, which is based on the dental documentation, leads up to 43-89% of a successful process.

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