scholarly journals The use of polymer materials for medical applications

2020 ◽  
pp. 5-13
Author(s):  
D. M. Los' ◽  
V. M. Shapovalov ◽  
S. V. Zotov
Keyword(s):  
Cardiac Surgery ◽  
Medical Devices ◽  
Metabolic Pathways ◽  
Living Organism ◽  
Polymer Materials ◽  
Medical Applications ◽  
Allergic Reactions ◽  
Important Criterion ◽  
Practical Medicine ◽  
Selection Of

The article analyzes the use of polymer materials for solving problems of theoretical and practical medicine. The effectiveness of the use of polymers in reconstructive cardiac surgery, radiation therapy, etc. has been shown. The basic requirements set for polymers and composites for medical devices have been identified. The most important criterion for the selection of polymers is the safety of their use in clinical practice and their ability to biodegrade when they enter a living organism along the usual metabolic pathways in the absence of inflammatory and allergic reactions of surrounding tissues during longterm followup care.

Perioperative acute internal carotid thrombosis after general surgery

2020 ◽  
Vol 99 (3) ◽  
pp. 136-140
Keyword(s):  
Cardiac Surgery ◽  
Internal Carotid ◽  
Right Hemicolectomy ◽  
Diagnostic Assessment ◽  
Left Carotid Artery ◽  
Perioperative Stroke ◽  
Internal Carotid Occlusion ◽  
Acute Brain Ischemia ◽  
Selection Of Patients ◽  
Selection Of

Introduction: The average incidence of perioperative stroke during major non-cardiac surgery is less than 1%, suggesting that it is rarely a major problem for the vast majority of patients. Methods: In our paper we present a 46-year-old patient undergoing acute right hemicolectomy who developed right-sided hemiparesis in the perioperative setting. Immediate CTAg examination showed an ischemic stroke in the left hemisphere as a result of left internal carotid thrombosis. A surgical procedure to recanalize the left carotid artery was performed 14 hours from the onset of neurological symptomatology and the neurological deficit gradually recovered fully. Conclusion: Our case report supports studies showing that a thorough diagnostic assessment allows the selection of patients who may benefit from urgent revascularization of acute internal carotid occlusion during the phase of acute brain ischemia.

scholarly journals Continuous Based Direct Ink Write for Tubular Cardiovascular Medical Devices

Polymers ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 77
Author(s):  
Enric Casanova-Batlle ◽  
Antonio J. Guerra ◽  
Joaquim Ciurana
Keyword(s):  
Medical Devices ◽  
New Technology ◽  
Vascular Grafts ◽  
Mechanical Resistance ◽  
Medical Applications ◽  
End User ◽  
Cardiovascular Stents ◽  
Direct Ink Writing ◽  
Late Restenosis ◽  
Printing Parameters

Bioresorbable cardiovascular applications are increasing in demand as fixed medical devices cause episodes of late restenosis. The autologous treatment is, so far, the gold standard for vascular grafts due to the similarities to the replaced tissue. Thus, the possibility of customizing each application to its end user is ideal for treating pathologies within a dynamic system that receives constant stimuli, such as the cardiovascular system. Direct Ink Writing (DIW) is increasingly utilized for biomedical purposes because it can create composite bioinks by combining polymers and materials from other domains to create DIW-printable materials that provide characteristics of interest, such as anticoagulation, mechanical resistance, or radiopacity. In addition, bioinks can be tailored to encounter the optimal rheological properties for the DIW purpose. This review delves into a novel emerging field of cardiovascular medical applications, where this technology is applied in the tubular 3D printing approach. Cardiovascular stents and vascular grafts manufactured with this new technology are reviewed. The advantages and limitations of blending inks with cells, composite materials, or drugs are highlighted. Furthermore, the printing parameters and the different possibilities of designing these medical applications have been explored.

THE EAR OXIMETER AS A CIRCULATORY MONITOR III. THE IR PULSE AS A GUIDE TO THE SELECTION OF VASOPRESSOR DRUGS IN CARDIAC SURGERY

1961 ◽  
Vol 5 (6) ◽  
pp. 580
Author(s):  
S. SCHOTZ ◽  
S. S. BLOOM ◽  
F. W. HELMSWORTH ◽  
H. C. DODGE ◽  
E. L. BIRKMIRE
Keyword(s):  
Cardiac Surgery ◽  
Selection Of

scholarly journals Transfusion Requirements in Anemic Patients undergoing Cardiac Surgery

2017 ◽  
Vol 2 (1) ◽  
pp. 26-27
Author(s):  
Vaishali S Badge ◽  
Henry Skinner
Keyword(s):  
Cardiac Surgery ◽  
Morbidity And Mortality ◽  
Surgical Patients ◽  
Transfusion Rate ◽  
Allergic Reactions ◽  
Blood Products ◽  
Transfusion Requirements

ABSTRACT Cardiac surgery is one of the largest consumer of blood and blood products in medicine. The transfusion rate in cardiac surgery accounts to almost 40-90%. Although lifesaving, it still increases the risk of allergic reactions, risk of transmission of infection, increased morbidity and mortality. The aim of this study was to find out causes of anaemia and requirement of blood or blood products in cardiac surgical patients. How to cite this article Badge VS, Skinner H. Transfusion Requirements in Anemic Patients undergoing Cardiac Surgery. Res Inno in Anesth 2017;2(1):26-27.

scholarly journals Tetracycline Allergy

Pharmacy ◽  
2019 ◽  
Vol 7 (3) ◽  
pp. 104 ◽  
Author(s):  
Leslie A. Hamilton ◽  
Anthony J. Guarascio
Keyword(s):  
Adverse Reaction ◽  
Adverse Reactions ◽  
Allergic Reactions ◽  
Hypersensitivity Reactions ◽  
Serious Adverse Events ◽  
Tetracycline Antibiotics ◽  
Reaction Type ◽  
Pubmed Search ◽  
Life Threatening ◽  
Selection Of

Despite the widespread use of tetracycline antibiotics since the late 1940s, tetracycline hypersensitivity reactions have rarely been described in the literature. A comprehensive PubMed search was performed, including allergic and serious adverse reactions attributed to the tetracyclines class of antibiotics. Of the evaluated tetracycline analogs, minocycline was attributed to the greatest overall number and severity of serious adverse events reported in the literature, with notable reactions primarily reported as respiratory and dermatologic in nature. Reactions to tetracycline have also been well described in the literature, and although dermatologic reactions are typically less severe in comparison with minocycline and doxycycline, various reports of anaphylactic reactions exist. Although doxycycline has been noted to have had the fewest reports of severe allergic reactions, rare descriptions of life-threatening reactions are still reported in the literature. Allergic reactions regarding tetracyclines are rare; however, adverse reaction type, severity, and frequency among different tetracycline analogs is somewhat variable. A consideration of hypersensitivity and adverse reaction incidence should be performed prior to the selection of individual tetracycline entities.

Microsystems in Medicine

1998 ◽  
Vol 21 (3) ◽  
pp. 137-146 ◽  
Author(s):  
U. Wallrabe ◽  
P. Ruther ◽  
T. Schaller ◽  
W. K. Schomburg
Keyword(s):  
Cell Culture ◽  
Medical Devices ◽  
Optical Sensors ◽  
Salt Solution ◽  
Medical Applications ◽  
3 Dimensional ◽  
Batch Fabrication ◽  
Cell Culture Systems ◽  
Dimensional Growth ◽  
Plastic Containers

The complexity of modern surgical and analytical methods requires the miniaturisation of many medical devices. The LIGA technique and also mechanical microengineering are well known for the batch fabrication of microsystems. Actuators and sensors are developed based on these techniques. The hydraulic actuation principle is advantageous for medical applications since the energy may be supplied by pressurised balanced salt solution. Some examples are turbines, pumps and valves. In addition, optical sensors and components are useful for analysis and inspection as represented by microspectrometers and spherical lenses. Finally, plastic containers with microporous bottoms allow a 3-dimensional growth of cell culture systems.

scholarly journals Selection of a cardiac surgery provider in the managed care era

2000 ◽  
Vol 120 (5) ◽  
pp. 978-989 ◽  
Author(s):  
David M. Shahian ◽  
Winnie Yip ◽  
George Westcott ◽  
Jerilynn Jacobson
Keyword(s):  
Cardiac Surgery ◽  
Managed Care ◽  
Selection Of

scholarly journals Dynamic covalent chemistry in polymer networks: a mechanistic perspective

2019 ◽  
Vol 10 (45) ◽  
pp. 6091-6108 ◽  
Author(s):  
Johan M. Winne ◽  
Ludwik Leibler ◽  
Filip E. Du Prez
Keyword(s):  
Physicochemical Properties ◽  
Reaction Mechanisms ◽  
Polymer Networks ◽  
Molecular Network ◽  
Polymer Materials ◽  
Dynamic Covalent Chemistry ◽  
Selection Of

A selection of dynamic chemistries is highlighted, with a focus on the reaction mechanisms of molecular network rearrangements, and on how mechanistic profiles can be related to the mechanical and physicochemical properties of polymer materials.

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