Acute thrombotic manifestations of coronavirus disease 2019 infection: Experience at a large New York City health care system.

Background: Coronavirus disease 2019 (COVID-19) is a novel coronavirus that has typically resulted in upper respiratory symptoms. However, we have encountered acute arterial and venous thrombotic events after COVID-19 infection. Managing acute thrombotic events from the novel virus has presented unprecedented challenges during the COVID-19 pandemic.

Iliac Remote Endarterectomy to Restore Circulation in a Patient with Infected Aorto-Femoral and Axillo-Bifemoral Bypasses.

We report a case of a patient who underwent a 2-stage operation that included a right obturator bypass with left iliac remote endarterectomy followed by removal of an infected, previously failed aorto-right-femoral and right axillo-bifemoral bypass reconstructions.

The Transradial Approach for Lower Extremity Vascular Intervention.

Simultaneous technological advancements in both imaging as well as devices have resulted in an expansion of endovascular options for vascular access. In particular, radial access has traditionally been more favored for coronary interventions; its use in the aortoiliac and lower extremity vasculature has been constrained by the length of devices and the size of sheaths required. However, with increasing catheter shaft lengths, in addition to new thin-walled sheaths allowing for downsizing, the ability to perform transradial interventions on infrainguinal and infrageniculate vessels has been more readily facilitated.

Accuracy of Transcutaneous CO Values Compared With Arterial and Capillary Blood Gases.

Background: Transcutaneous monitors are utilized to monitor a patient's respiratory status. Some patients have similar values when comparing transcutaneous carbon dioxide (P ) values with blood gas analysis, whereas others show extreme variability. A retrospective review of data was performed to determine how accurately P correlated with CO values obtained by arterial blood gas (ABG) or capillary blood gas.

Clinical significance of reversal of flow in the vertebral artery identified on cerebrovascular duplex ultrasound.

Background: Reversal of flow in the vertebral artery (RFVA) is an uncommon finding on cerebrovascular duplex ultrasound examination. The clinical significance of RFVA and the natural history of patients presenting with it are poorly understood. Our objective was to better characterize the symptoms and outcomes of patients presenting with RFVA.

Contemporary outcomes of surgical revascularization of the lower extremity in patients on dialysis.

Objective: Peripheral arterial disease is a common comorbidity found in up to 38% of patients with end-stage renal disease (ESRD). With an increase in the survival rate of patients with ESRD by >25%, there is a lack of contemporary data on the safety of open surgical revascularization of the lower extremity (OSRLE) in this population of patients. We sought to identify the perioperative morbidity and mortality and independent risk factors of mortality in dialysis patients undergoing OSRLE.

Novel association between bone mineral density scores and the prevalence of peripheral artery disease in both sexes.

The purpose of the current study was to investigate the association between bone mineral density (BMD) scores and the prevalence of peripheral artery disease (PAD) in a large cohort of subjects who underwent arterial Doppler assessments and calcaneal bone densitometry. The study was performed using data obtained from Life Line Screening Inc. Subjects were self-selected and paid for screening tests.

Vascular control for a forequarter amputation of a massive fungating humeral osteosarcoma.

Forequarter amputation is a radical operation performed for treatment of malignant neoplasms of the shoulder girdle not amenable to limb salvage. Traditional approaches involve bone and soft tissue resection, followed by ligation of the axillary vessels. We describe a technique to minimize blood loss whereby control of the subclavian vessels is performed before amputation of a large tumor associated with extensive venous congestion.

Iliac Artery-Uretero-Colonic Fistula Presenting as Severe Gastrointestinal Hemorrhage and Hematuria: A Case Report and Review of the Literature.

Arterioenteric fistulas represent an infrequent but potentially fatal cause of gastrointestinal hemorrhage. Patients often present in extremis from shock and sepsis. This mandates a rapid diagnosis so that prompt, potentially life-saving interventions can be performed.

Study of therapeutic hypothermia (32 to 35°C) for intracranial pressure reduction after traumatic brain injury (the Eurotherm3235Trial): outcome of the pilot phase of the trial.

Background: Clinical trials in traumatic brain injury (TBI) are challenging. Previous trials of complex interventions were conducted in high-income countries, reported long lead times for site setup and low screened-to-recruitment rates.In this report we evaluate the internal pilot phase of an international, multicentre TBI trial of a complex intervention to assess: design and implementation of an online case report form; feasibility of recruitment (sites and patients); feasibility and effectiveness of delivery of the protocol.

RASSF1C modulates the expression of a stem cell renewal gene, PIWIL1.

Background: RASSF1A and RASSF1C are two major isoforms encoded by the Ras association domain family 1 (RASSF1) gene through alternative promoter selection and mRNA splicing. RASSF1A is a well established tumor suppressor gene. Unlike RASSF1A, RASSF1C appears to have growth promoting actions in lung cancer.

Ras-association domain family 1C protein promotes breast cancer cell migration and attenuates apoptosis.

Background: The Ras association domain family 1 (RASSF1) gene is a Ras effector encoding two major mRNA forms, RASSF1A and RASSF1C, derived by alternative promoter selection and alternative mRNA splicing. RASSF1A is a tumor suppressor gene. However, very little is known about the function of RASSF1C both in normal and transformed cells.

The yeast SUMO isopeptidase Smt4/Ulp2 and the polo kinase Cdc5 act in an opposing fashion to regulate sumoylation in mitosis and cohesion at centromeres.

Post-translation modification through the SUMO pathway is cell cycle regulated, with specific SUMO conjugates accumulating in mitotic cells. The basis for this regulation, however, and its functional significance remain poorly understood. We present evidence that in budding yeast sumoylation during mitosis may be controlled through the SUMO deconjugating enzyme Smt4/Ulp2.

Top2 SUMO conjugation in yeast cell lysates.

DNA topoisomerase II (Topo II), named Top2 in budding and fission yeast, is a conserved target of the SUMO modification pathway, with SUMO-conjugated forms of Topo II accumulating specifically during mitosis in both yeast and vertebrate cells (Bachant et al., Mol Cell 9, 1169-82, 2002; Azuma et al., J Cell Biol 163, 477-87, 2003; Dawlaty et al.

Analyzing Top2 distribution on yeast chromosomes by chromatin immunoprecipitation.

In vertebrate cells, DNA topoisomerase II (Topo II), named Top2 in yeast, localizes along chromosome axes early in mitosis and concentrates within centromeric chromatin during metaphase. The factors controlling these changes in enzyme distribution are largely unknown. Insight into Topo II dynamics could potentially be derived through genetic approaches in yeast.

The Warrington workload tool: determining its use in one trust.

With recent advances in chronic disease management and with earlier discharge from the acute sector, it has become increasingly important for district nurses to monitor and evidence their increasing workload, to monitor demand and capacity. The district nursing service in the author's trust has employed an adaptation of the Warrington workload tool, over several years, to demonstrate and evidence their workload. However, many dispute the accuracy of such tools.