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https://www.readbyqxmd.com/read/29334539/gelatin-based-hemostatic-agents-histopathologic-differences
#1
Natalie Wolkow, Frederick A Jakobiec, Michael K Yoon
PURPOSE: To delineate the histopathologic appearance of gelatin-based hemostatic agents, Surgiflo, Gelfoam, and Floseal, which are used by ophthalmic plastic surgeons, and which may incidentally be found as foreign materials in histopathologic tissue samples. METHODS: Histopathologic analysis was performed with hematoxylin-eosin, periodic acid-Schiff, Masson trichrome, and elastin staining on tissue samples in which gelatin-based agents were found. To better characterize these materials, similar analyses were performed on in vitro samples of commonly used gelatin-based hemostatic agents...
January 12, 2018: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29322589/the-direct-cytotoxic-effects-of-different-hemostatic-agents-on-human-gingival-fibroblasts
#2
Nawaf Labban, Hanan AlOtaibi, Abdullah Mokeem, Mohammad AlJameel, Talal AlRasheed, Dalia Ali
PURPOSE: To evaluate the cytotoxic effects of different hemostatic agents (including Expasyl) on human gingival fibroblasts (HGFs) in vitro. MATERIALS AND METHODS: HGFs were cultured and exposed to either no medicament treatment or 1:200 dilution of six different hemostatic agents (Hemox-A, Hemodent, Astringedent, Vicostat, Expasyl, 3M ESPE) for 2, 5, 10 minutes, 1 hour, and 24 hours. Toxicity to HGFs was determined by lactate dehydrogenase activity (LDH) and colorimetric (WST-1) assays...
January 11, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29321571/thrombin-fe3o4-nanoparticles-for-use-as-a-hemostatic-agent-in-internal-bleeding
#3
Emiliya M Shabanova, Andrey S Drozdov, Anna F Fakhardo, Ivan P Dudanov, Marina S Kovalchuk, Vladimir V Vinogradov
Bleeding remains one of the main causes of premature mortality at present, with internal bleeding being the most dangerous case. In this paper, magnetic hemostatic nanoparticles are shown for the first time to assist in minimally invasive treatment of internal bleeding, implying the introduction directly into the circulatory system followed by localization in the bleeding zone due to the application of an external magnetic field. Nanoparticles were produced by entrapping human thrombin (THR) into a sol-gel derived magnetite matrix followed by grinding to sizes below 200 nm and subsequent colloidization...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29314035/economic-evaluation-of-floseal-compared-to-nasal-packing-for-the-management-of-anterior-epistaxis
#4
Andre Le, Kednapa Thavorn, Andrea Lasso, Shaun J Kilty
OBJECTIVES/HYPOTHESIS: To evaluate the cost-effectiveness of Floseal, a topically applied hemostatic agent, and nasal packing for the management of epistaxis in Canada. STUDY DESIGN: Outcomes research, a cost-utility analysis. METHODS: We developed a Markov model to compare the costs and health outcomes of Floseal with nasal packing over a lifetime horizon from the perspective of a publicly funded healthcare system. A cycle length of 1 year was used...
January 4, 2018: Laryngoscope
https://www.readbyqxmd.com/read/29303921/blood-loss-management-in-spine-surgery
#5
Jesse E Bible, Muhammad Mirza, Mark A Knaub
Substantial blood loss during spine surgery can result in increased patient morbidity and mortality. Proper preoperative planning and communication with the patient, anesthesia team, and operating room staff can lessen perioperative blood loss. Advances in intraoperative antifibrinolytic agents and modified anesthesia techniques have shown promising results in safely reducing blood loss. The surgeon's attention to intraoperative hemostasis and the concurrent use of local hemostatic agents also can lessen intraoperative bleeding...
January 15, 2018: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/29282877/multifunctional-shape-memory-polymer-foams-with-bio-inspired-antimicrobials
#6
Mary Beth Browning Monroe, Alexandra D Easley, Katie Grant, Grace K Fletcher, Calla Boyer, Duncan J Maitland
Despite a number of clinically available hemostats, uncontrolled bleeding is the primary cause of trauma-related death. Shape-memory polymer (SMP) foams have a number of desirable properties for use as hemostats, including shape recovery to enable delivery into bleed sites, biocompatibility, and rapid blood clotting. To expand upon this material system, the current work aims to incorporate phenolic acids, which are honey-based antimicrobial agents, into SMP foams. We showed that cinnamic acid (CA) can be utilized as a monomer in SMP synthesis to provide foams with comparable pore structure and retained cytocompatibility...
December 28, 2017: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/29277887/the-safety-and-efficacy-of-adjuvant-hemostatic-agents-during-laparoscopic-nephron-sparing-surgery-comparison-of-tachosil-and-floseal-versus-no-hemostatic-agents
#7
Senol Tonyali, Artan Koni, Sertac Yazici, Cenk Y Bilen
PURPOSE: To compare the effectiveness of TachoSil and Floseal during laparoscopic nephron-sparing surgery (LNSS), and to evaluate postoperative complications, especially hemorrhage and urinary leakage. MATERIALS AND METHODS: The medical records of all patients that underwent LNSS for a small renal mass (SRM) performed by the same experienced surgeon were retrospectively analyzed. The patients were divided into the following 3 groups, based on hemostatic agent: group 1: no adjuvant hemostatic agent (no AHA); group 2: TachoSil; group 3: Floseal...
December 26, 2017: Urology Journal
https://www.readbyqxmd.com/read/29259368/clinical-applications-of-ferric-sulfate-in-dentistry-a-narrative-review
#8
REVIEW
Madhuri Bandi, Sreekanth Kumar Mallineni, Sivakumar Nuvvula
Ferric sulfate (FS) has been commonly used as a local hemostatic agent for more than three decades in dentistry. Even though the hemostatic mechanism of FS is questioned, it seems that agglutination of blood proteins occurs due to the reaction of blood with ferric and sulfate ions in acidic pH. FS has gained widespread importance as a pulpotomy medicament in contemporary dentistry; nevertheless, it has several applications in different fields of dentistry which was paid little attention. Hence, the purpose of this paper is to review the various applications of FS in dentistry, along with restorative dentistry and endodontics...
July 2017: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/29251820/staphylococcus-aureus-master-manipulator-of-the-human-hemostatic-system
#9
REVIEW
Laurens Liesenborghs, Peter Verhamme, Thomas Vanassche
The coagulation system does not only offer protection against bleeding, but also aids in our defense against invading microorganisms. The hemostatic system and innate immunity are strongly entangled, which explains why so many infections are complicated by either bleeding or thrombosis. Staphylococcus aureus (S. aureus), currently the most deadly infectious agent in the developed world, causes devastating intravascular infections like sepsis and infective endocarditis. During these infections S. aureus comes in close contact with host hemostatic system and proves to be a master in manipulating coagulation...
December 18, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/29238233/an-in-vivo-comparison-of-the-efficacy-of-hemostatic-powders-using-two-porcine-bleeding-models
#10
Melinda H MacDonald, Allen Y Wang, Jeffrey W Clymer, Richard W Hutchinson, Richard Kocharian
Background: Usage of topical hemostatic agents in surgery is increasing, including use during minimally invasive procedures, and even for surgeries that have a low risk of bleeding complications. A novel product, Surgicel® Powder - Absorbable Hemostatic Powder (SP), made from oxidized regenerated cellulose (ORC) fabric, has been developed for adjunctive use in surgical procedures to assist in control of oozing bleeding over broad areas and where access could be difficult with a fabric ORC product...
2017: Medical Devices: Evidence and Research
https://www.readbyqxmd.com/read/29222310/novel-alternate-hemostatic-agents-for-patients-with-inhibitors-beyond-bypass-therapy
#11
REVIEW
Margaret V Ragni
Inhibitor formation is among the most severe complications of hemophilia treatment. With a cumulative incidence of ∼30% in those with severe hemophilia A and ∼3% in those with severe hemophilia B, inhibitors are caused by a T-cell response directed against infused coagulation factor; these inhibitors neutralize factor VIII or IX activity and disrupt normal hemostasis. Inhibitor patients become unresponsive to standard factor treatment and, as an alternative, use bypass treatment (eg, recombinant factor VIIa or factor VIII inhibitor bypass activity)...
December 8, 2017: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/29215689/influence-of-hemostatic-solution-on-bond-strength-and-physicochemical-properties-of-resin-cement
#12
Isabela Sousa de Araújo, Célio Jesus do Prado, Luís Henrique Araújo Raposo, Carlos José Soares, Rayssa Ferreira Zanatta, Carlos Rocha Gomes Torres, Reinaldo Ruggiero, Gisele Rodrigues da Silva
The aim of this study was to evaluate the degree of conversion, color stability, chemical composition, and bond strength of a light-cured resin cement contaminated with three different hemostatic solutions. Specimens were prepared for the control (uncontaminated resin cement) and experimental groups (resin cement contaminated with one of the hemostatic solutions) according to the tests. For degree of conversion, DC (n = 5) and color analyses (n = 10), specimens (3 mm in diameter and 2 mm thick) were evaluated by Fourier transform infrared spectroscopy (FTIR) and CIELAB spectrophotometry (L*, a*, b*), respectively...
September 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/29204261/recombinant-human-factor-viia-rfviia-in-hemophilia-mode-of-action-and-evidence-to-date
#13
REVIEW
Muriel Giansily-Blaizot, Jean-François Schved
Recombinant activated factor VII (rFVIIa) is a bypassing agent widely used both in the treatment and prevention of hemorrhagic complications due to hemophilia with inhibitor. In such cases, antihemophilic factors cannot be used. The normal physiology of factor VII/ factor VIIa (FVII/FVIIa) in the hemostatic process requires the presence of tissue factor (TF) that links to FVII leading to a FVIIa-TF complex which activates both factor X and factor IX. The therapeutic use of rFVIIa requires high amount of FVIIa...
December 2017: Therapeutic Advances in Hematology
https://www.readbyqxmd.com/read/29200730/comparative-proteomic-analysis-of-three-gelatinous-chinese-medicines-and-their-authentications-by-tryptic-digested-peptides-profiling-using-matrix-assisted-laser-desorption-ionization-time-of-flight-time-of-flight-mass-spectrometry
#14
Huan Yang, Jie Zheng, Hai-Yan Wang, Nan Li, Ya-Ya Yang, Yu-Ping Shen
Background: Gelatinous Chinese medicines (GCMs) including Asini Corii Colla, Testudinis Carapacis ET Plastri Colla, and Cervi Cornus Colla, were made from reptile shell or mammalian skin or deer horn, and consumed as a popular tonic, as well as hemopoietic and hemostatic agents. Misuse of them would not exert their functions, and fake or adulterate products have caused drug market disorder and affected food and drug safety. GCMs are rich in denatured proteins, but insufficient in available DNA fragments, hence commonly used cytochrome c oxidase I barcoding was not successful for their authentication...
October 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29189062/factor-v-inhibitors-a-diagnostic-and-therapeutic-challenge
#15
Nicholas J Olson, Deborah L Ornstein
Historically, inhibitors to coagulation factor V (FV) most often have developed in patients treated with bovine thrombin, a topical hemostatic agent used during surgical procedures. With the advent of newer hemostatic agents, and the concurrent diminished use of bovine thrombin, the incidence of FV inhibitors has fallen. Nevertheless, FV inhibitors are occasionally seen on an idiopathic basis as well as in association with medications, malignancies, autoimmune disorders, pregnancy, and infections. Factor V inhibitors may present with life-threatening bleeding or thrombosis, or they may be discovered incidentally as a coagulation screening test abnormality...
December 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/29165738/alloantibodies-in-von-willebrand-disease
#16
Massimo Franchini, Pier Mannuccio Mannucci
von Willebrand disease (VWD), the most commonly known inherited bleeding disorder, is caused by a partial (type 1) or total (type 3) deficiency or dysfunction (type 2) of von Willebrand factor (VWF). Its management encompasses the prevention or treatment of bleeding by raising endogenous VWF levels using a synthetic agent, such as desmopressin, or providing exogenous VWF concentrates. The development of inhibitory alloantibodies against VWF is a rare but often severe complication encountered during the treatment of type 3 VWD, which is associated with a lack of hemostatic response to infused VWF concentrates and more rarely with allergic, even anaphylactic, reactions...
November 17, 2017: Seminars in Thrombosis and Hemostasis
https://www.readbyqxmd.com/read/29142842/prevention-and-management-of-bleeding-in-thyroid-surgery
#17
REVIEW
Gabriele Materazzi, Carlo Enrico Ambrosini, Lorenzo Fregoli, Luigi De Napoli, Gianluca Frustaci, Valeria Matteucci, Piermarco Papini, Sohail Bakkar, Paolo Miccoli
Post-thyroidectomy neck hematoma represents a major concern for surgeons because it can result in severe and even life-threatening complications. In fact, postoperative hemorrhage may result in airway compression and respiratory distress, and therefore, effective hemostasis is an important goal in thyroid surgery. Postoperative hematoma occurs at a rate of approximately 0.1% to 1.1%. Almost all cases occur in the first 6 h after surgery and can be the result of several surgeon or patient factors. For many years the clamp-and-tie technique has been the most common way to divide the main vascular pedicles of the thyroid gland...
October 2017: Gland Surgery
https://www.readbyqxmd.com/read/29137941/acute-and-sub-acute-oral-toxicity-studies-of-the-aqueous-extract-from-radix-radix-with-cortex-and-cortex-of-psammosilene-tunicoides-in-mice-and-rats
#18
Yi-Chen, Min-Xuan Wu, Jie-Liu, Xiao-Jie Ma, Jin-Li Shi, Sheng-Nan Wang, Zhi-Quan Zheng, Jian-You Guo
ETHNOPHARMACOLOGICAL RELEVANCE: Psammosilene tunicoides is one of the important ingredients of a famous Chinese traditional medicine formulation "Yunnan Baiyao". Also, this plant is commonly used as an anodyne and hemostatic agent in southwest China. Currently, little toxicological information is available on its safety following prolonged use. AIM OF THE STUDY: In this study, we sought to evaluate the toxicity of the three different parts of Psammosilene tunicoides: Psammosilenes Radix (PR), Psammosilenes Radix with Cortex (PRC) and Psammosilenes Cortex (PC) by acute and sub-acute toxicity studies...
November 11, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29130853/endovascular-treatment-of-12-cases-of-renal-arteriovenous-malformations-the-experience-of-1-center-and-an-overview-of-the-literature
#19
Zhen-Yu Jia, Chun-Gao Zhou, Jin-Guo Xia, Lin-Bo Zhao, Wen Zhang, Sheng Liu, Hai-Bin Shi
OBJECTIVES: Congenital renal arteriovenous malformations (rAVMs) represent rare vascular diseases. The heterogeneous vascular architecture of each rAVM determines the endovascular treatment techniques employed. We reported our experience with the endovascular treatment of a series of rAVMs. MATERIALS: This retrospective study consisted of 12 patients with 12 rAVMs who underwent renal arterial embolization (RAE) in our hospital. Embolic materials, including particles, liquid embolic agents (n-butyl 2-cyanoacrylate, Onyx, and ethanol), and coils, were selectively used based on the decisions of interventional radiologists...
January 1, 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/29130595/naphthoquinones-a-continuing-source-for-discovery-of-therapeutic-antineoplastic-agents
#20
REVIEW
Han-Yue Qiu, Peng-Fei Wang, Hong-Yan Lin, Cheng-Yi Tang, Hai-Liang Zhu, Yong-Hua Yang
Naturally occurring naphthoquinones, usually in forms of botanical extracts, have been implicated with human life since ancient time, far earlier than their isolation and identification in modern era. The long use history of naphthoquinones has witnessed their functional shift from the original purposes as dyes and ornaments towards medicinal benefits. Hitherto, numerous studies have been carried out to elucidate the pharmacological profile of both natural and artificial naphthoquinones. A number of entities have been identified with promising therapeutic potential...
November 11, 2017: Chemical Biology & Drug Design
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