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Recent advances in fluorescent probes for extracellular pH detection and imaging.
Abstract Extracellular pH plays vital roles in physiological and pathological processes including tumor metastasis and chemotherapy resistance. Abnormal extracellular pH is known to be associated with various pathological states, such as those in tumors, ischemic stroke, infection, and inflammation. Specifically, dysregulated pH is regarded as a hallmark of cancer because enhanced glycolysis and poor perfusion in most solid malignant tumors create an acidic extracellular environment, which enhances tumor growth, invasion, and metastasis. Close connection between the cell functions with extracellular pH means that ...
Source: Analytical Biochemistry - September 10, 2020 Category: Biochemistry Authors: Chen Y Tags: Anal Biochem Source Type: research

Goal-directed therapy with bolus albumin 5% is not superior to bolus ringer acetate in maintaining systemic and mesenteric oxygen delivery in major upper abdominal surgery: A randomised controlled trial
CONCLUSION Bolus human albumin 5% was not superior to bolus ringer acetate in maintaining systemic or mesenteric oxygen delivery in elective major upper gastrointestinal cancer surgery, despite the administration of larger volumes of trial fluid in the ringer acetate group. No significant difference was seen in fluid-related complications or LOS. TRIAL REGISTRATION https://eudract.ema.europa.eu/ Identifier: 2013-002217-36.
Source: European Journal of Anaesthesiology - May 11, 2020 Category: Anesthesiology Tags: Haemodynamics Source Type: research

Occlusive radiation cerebral vasculopathy implies medical complexity: a case report
ConclusionLate-onset occlusive radiation vasculopathy is a potentially severe iatrogenic manifestation of radiotherapy that requires a high index of suspicion as an etiology of stroke in young population, especially those with coexistent meningioma that might be a strong indicator for occlusive radiation vasculopathy as the stroke culprit. We reviewed the available literature to better understand the pathogenesis, clinical presentation, and treatment options of occlusive radiation vasculopathy. Applying perfusion studies with acetazolamide measures the cerebrovascular reserve in patients with occlusive radiation vasculopat...
Source: Journal of Medical Case Reports - June 2, 2019 Category: General Medicine Source Type: research

A Serious Diagnosis Lacking Common Symptoms
​BY JENNIFER TUONG; IVAN KHARCHENKO; JEAN LUC AGARD; & AHMED RAZIUDDIN, MDA 65-year-old man who had HIV well-controlled with highly active antiretroviral therapy, hypertension, sciatica, and restless leg syndrome presented to the emergency department with left leg pain. He also had had chemotherapy and radiation for anal cancer. The patient said the pain had started 45 minutes earlier when he was sitting on the toilet.He described the pain as sore in quality and 10/10 on the pain scale. He reported that it had started in his lower back and radiated to his left leg. He said he had had no trauma or weakness to the regi...
Source: The Case Files - May 28, 2019 Category: Emergency Medicine Tags: Blog Posts Source Type: research

Severe Symptoms, but a Truly Treatable Disease
​BY NOURA MAHDI; DARRON LEWIS; JEREMY OSBORNE; & AHMED RAZIUDDIN, MDA 73-year-old man was brought to the emergency department from his nursing home for rectal bleeding and anemia. The patient mentioned he had had episodes of bright red rectal bleeding and constipation for a few months. A colonoscopy had been done prior to the visit, which revealed a large intestine tumor and biopsy confirming adenocarcinoma. He was awaiting an appointment with his surgeon.The patient reported bloody rectal leakage, and a CBC done at the nursing home showed a hemoglobin level of 7.2. He also complained of dyspnea but denied any other ...
Source: The Case Files - March 20, 2018 Category: Emergency Medicine Tags: Blog Posts Source Type: research

The Global End-Diastolic Volume (GEDV) Could Be More Appropiate to Fluid Management Than Central Venous Pressure (CVP) During Closed Hyperthermic Intrabdominal Chemotherapy with CO2 Circulation.
CONCLUSIONS: Closed intrabdominal chemotherapy with CO2 circulation model may be a safe model for HIPEC by means of a gas exchanger. GEDV and its changes significantly correlated to CI, and not observed for CVP. GEDV values may be more appropriate for monitoring cardiac preload, blood loss limitation and to predict changes in intravascular volume status during intraperitoneal chemotherapy. PMID: 28557569 [PubMed - as supplied by publisher]
Source: Journal of Investigative Surgery - June 1, 2017 Category: Surgery Tags: J Invest Surg Source Type: research

Real Eyes Realize Real Lies (P1.148)
Conclusions:In this case, CT Perfusion scanning was used to disprove vascular etiology and ultimately led to the appropriate diagnosis through further diagnostic testing.Disclosure: Dr. E-Ghanmh has nothing to disclose. Dr. Niazi has nothing to disclose. Dr. Ermak has nothing to disclose.
Source: Neurology - April 17, 2017 Category: Neurology Authors: El-Ghanem, M., Niazi, M., Ermak, D. Tags: General Neurology: The Eyes Have It and White Matter Matters Source Type: research

Acute Ischemic Stroke as a Presenting Feature of Multiple Myeloma (P3.279)
Conclusions:Stroke is a leading and preventable cause of disability in the US adult population. The majority of strokes are due to atherosclerotic vascular or cardioembolic disease. Understanding the diagnostic work up of stroke and recognizing rare etiologies like MM is important for stroke prevention. This brings to light the importance of recognizing stroke as an initial presenting feature of multiple myeloma and of multiple myeloma as an important treatable etiology of stroke.Disclosure: Dr. Chung has nothing to disclose. Dr. Ramamoorthy has nothing to disclose. Dr. Kar has nothing to disclose.
Source: Neurology - April 17, 2017 Category: Neurology Authors: Chung, S., Ramamoorthy, R., Kar, J. Tags: Cerebrovascular Disease Case Reports II Source Type: research

Time course of cytokines, hemodynamic and metabolic parameters during hyperthermic intraperitoneal chemotherapy.
CONCLUSION: The most significant variations are those of IL-6 and PCT. The cytokines level parallel the hemodynamic derangements. Treatment during HIPEC should mimic the established treatment during sepsis and septic shock. PMID: 26154446 [PubMed - as supplied by publisher]
Source: Minerva Anestesiologica - July 13, 2015 Category: Anesthesiology Tags: Minerva Anestesiol Source Type: research

Venous thromboembolism in children with acute lymphoblastic leukemia
Abstract Venous thromboembolism (VTE) occurs in 0.95–36 % of children with acute lymphoblastic leukemia almost exclusively during chemotherapy. It is most commonly associated with concurrent l-asparaginase and steroid therapy, central venous line use, and inherited thrombophilia. Clinical manifestations regarding the location of VTE include central nervous system thrombosis (sinus venous thrombosis, cerebral infarct/stroke), upper-/lower-limb deep venous thrombosis, pulmonary embolism, and right atrial/intracardiac and superficial venous thrombosis and can be both symptomatic and asymptomatic. The majority of ...
Source: Memo - Magazine of European Medical Oncology - September 1, 2014 Category: Cancer & Oncology Source Type: research

Cerebral Vasoconstriction Triggered By Sympathomimetic Drugs During Intra-atrerial Chemotherapy
In this report, we highlight the potential risk of reversible cerebral vasoconstriction in children administered vasoactive drugs and discuss its relevance during treatment of retinoblastoma by intraarterial chemotherapy.
Source: Pediatric Neurology - January 21, 2013 Category: Neurology Authors: Todd Abruzzo, Mario Patino, James Leach, Ralph Rahme, James Geller Tags: Case Reports Source Type: research