Publications by authors named "Psoinos C"

Background: Ripretinib, a broad-spectrum KIT and platelet-derived growth factor receptor A switch-control tyrosine kinase inhibitor, is approved for the treatment of adult patients with advanced gastrointestinal stromal tumor as ≥ fourth-line therapy. We present the efficacy and safety of ripretinib in patients with KIT-altered metastatic melanoma enrolled in the expansion phase of the ripretinib phase I study.

Patients And Methods: Patients with KIT-altered metastatic melanoma were enrolled and treated with ripretinib at the recommended phase II dose of 150 mg once daily in 28-day cycles.

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Acute appendicitis is one of the most common etiologies for acute abdomen. However, fewer than 30 cases of acute appendicitis after liver transplantation have so far been reported in the literature. Previous case studies have concluded that acute appendicitis after liver transplantation may present differently than in non-immunosuppressed patients and thus may lead to more complications.

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Background: C. difficile (CDI) has surpassed methicillin-resistant staph aureus as the most common nosocomial infection with recurrence reaching 30% and the elderly being disproportionately affected. We hypothesized that post-discharge antibiotic therapy for continued CDI treatment reduces readmissions.

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Objective: To determine the effect of aeromedical transport on trauma mortality when accounting for geographic factors.

Background: The existing literature on the mortality benefit of aeromedical transport on trauma mortality is controversial. Studies examining patient and injury characteristics find higher mortality, whereas studies measuring injury severity find a protective effect.

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Article Synopsis
  • Advances in critical care are changing death patterns in trauma patients, prompting a study on mortality rates of those who survive their initial hospitalization.
  • A retrospective analysis of a Level-1 trauma center showed that, out of 1,695 critically injured patients, 67% were discharged alive, with 86% of those still alive two years later; however, nearly half of those who died did so within the first year post-discharge.
  • Factors such as longer hospital and ICU stays, the need for specific medical procedures, and demographic variables like age and gender were linked to higher mortality rates, suggesting that patients with extended ICU stays may need more thorough post-discharge care discussions.
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Objectives: We determined how preinjury insurance status and injury-related outcomes among able-bodied, community-dwelling adults treated at a Level I Trauma Center in central Massachusetts changed after health care reform.

Methods: We compared insurance status at time of injury among non-Medicare-eligible adult Massachusetts residents before (2004-2005) and after (2009-2010) health care reform, adjusted for demographic and injury covariates, and modeled associations between insurance status and trauma outcomes.

Results: Among 2148 patients before health care reform and 2477 patients after health care reform, insurance rates increased from 77% to 84% (P < .

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Background: The utility of hyperbaric oxygen therapy (HBOT) in the treatment of necrotizing soft tissue infections (NSTIs) has not been proved. Previous studies have been subject to substantial selection bias because HBOT is not available universally at all medical centers, and there is often considerable delay associated with its initiation. We examined the utility of HBOT for the treatment of NSTI in the modern era by isolating centers that have their own HBOT facilities.

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Background: Necrotizing soft-tissue infections (NSTI) are rare, potentially fatal, operative emergencies. We studied a national cohort of patients to determine recent trends in incidence, treatment, and outcomes for NSTI.

Methods: We queried the Nationwide Inpatient Sample (1998-2010) for patients with a primary diagnosis of NSTI.

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Mycotic abdominal aortic aneurysms (AAAs) are a clinical challenge for vascular surgeons due to their critical location, surrounding inflammation, risk of rupture, and danger of reinfection following treatment. We present a case of Mycobacterium bovis AAA in a 69-year-old male after treatment with intravesicular bacillus Calmette-Guérin (BCG) therapy for bladder carcinoma. The classical approach for mycotic AAA entails extra-anatomic reconstruction followed by resection with oversewing of the proximal and distal aortic stumps.

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Background: Nonprofessionals routinely perform high-risk home maintenance activities otherwise regulated by the Occupational Health and Safety Administration when professionals perform the same work. Reducing the risks taken by these "weekend warriors" has not been the focus of injury prevention efforts. This study describes injury patterns and outcomes for nonprofessionals attempting home roof and tree maintenance.

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Purpose: The purpose of this study was to compare inflammatory responses, tissue integration, and strength of the acellular dermal collagen matrices AlloDerm(®)* Regenerative Tissue Matrix, Permacol™**Surgical Implant (Permacol), and CollaMend™*** Implant in a rat model for ventral hernia repair.

Methods: Rats were randomized into four groups and abdominal wall defects repaired with an inlay graft of AlloDerm, Permacol, or CollaMend. Rats were sacrificed at six time points and the defect area was removed and analyzed for tissue integration and physical strength.

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Multicystic peritoneal mesothelioma (MCPM) is a rare cystic proliferation most often seen in women of reproductive age with a history of prior abdominal surgery. This is a case report of an 83-year-old woman diagnosed with MCPM during an exploratory laparotomy for presumed peritoneal carcinomatosis from colon cancer. After complete removal of all visible MCPM, the patient remains free of both colon cancer and MCPM.

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Background: Cardiopulmonary bypass (CPB) induces a systemic inflammatory response. The magnitude and consequences in infants remain unclear. We assessed the relationship between inflammatory state and clinical outcomes in infants undergoing CPB.

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Negative pressure wound therapy (NPWT) is described as it is used in the treatment of an infant burn victim. This case highlights the ability and techniques used to maintain an airtight dressing seal in the perirectal region. Use of this dressing type post-skin grafting allowed for 100% graft adhesion and no bacterial contamination despite close proximity to the rectum.

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