3D Printed Acute Bacterial Endocarditis

3D Printed Acute Bacterial Endocarditis

Item # MP2041
$339.00 $377.00
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Features & Specifications
  • Trusted Vendorby Erler Zimmer Monash University
    A trusted GT partner
  • 3D Printed Badge3D Printed Model
    from a real specimen
  • GSA PricingGov't pricing
    Available upon request
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3D Printed Acute Bacterial Endocarditis

Clinical History
A 15-year old boy with cough and sputum developed a hectic (spiking) fever and chest pain a few days before being admitted in a comatosed condition. Examination revealed an early diastolic murmur at the aortic area, which radiated down the left sternal edge. He deteriorated very quickly and died, despite antibiotic chemotherapy. Blood cultures grew Staphylococcus aureus.

Pathology
This small heart displays the left ventricle and associated valves. The non-coronary cusp of the aortic valve is ulcerated and perforated and has friable vegetations attached. Immediately below this cusp a perforation extends into the right atrium just above the tricuspid valve (see back of specimen. The other aortic cusp is also thickened. This is an acute bacterial endocarditis with aortic cusp and atrioventricular perforations.

Further Information
Acute bacterial endocarditis is a form of infective endocarditis. Endocarditis due to fungal infections can also occur although they are rare.
In normal circumstances, the endothelial lining of the heart and valves is relatively resistant to infection by most bacteria or fungi. Therefore, in order for infective endocarditis to occur, there needs to be initial damage or injury to the endocardial tissue. This often results in aggregation of platelets and fibrin, which then become infected, resulting in vegetation formation (i.e. an infective nidus). Staphylococcus aureus, however, is highly virulent and can sometimes infect normal heart valves.

After the initial platelet-fibrin aggregation, there is further activation of the coagulating system via the extrinsic clotting pathway and initiation of the inflammatory response via monocytes, resulting in further growth of the vegetation/thrombus. The microbial growth tends to occur within the fibrin matrix, which makes it difficult for the immune responses to eradicate the infection. An additional problem is that these infected thombi can also embolise causing distant sites of infection in smaller capillaries (e.g. in the kidney).
Risk factors for developing an infective endocarditis include valvular heart disease, such as previous rheumatic heart disease, congenital heart disease (e.g. ventricular septal defect or bicuspid aortic valve), prosthetic heart valves or any previous invasive cardiac procedures. Anti-thrombotic medications – e.g. heparin or aspirin – may have to be administered in patients at risk. Diagnosis is initially made by clinical examination followed by pathology (blood cultures) and diagnostic imaging. Transthoracic echocardiogram is often first line, followed by transoesophageal echocardiogram. Treatment includes antimicrobial therapy, anti-coagulants, and in some complicated cases, surgical intervention such as valve surgery.

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Handling Guidelines for 3D Printed Models

GTSimulators by Global Technologies
Erler Zimmer Authorized Dealer
These items normal warranty are two years, however the warranty doesn’t cover “wear and tear”. The manufacturer does have 100% quality control on these models.

The models are very detailed and delicate. With normal production machines you cannot realize such details like shown in these models.
The printer used is a color-plastic printer. This is the most suitable printer for these models.
The plastic material is already the best and most suitable material for these prints. (The other option would be a kind of gypsum, but this is way more fragile. You even cannot get them out of the printer without breaking them).The huge advantage of the prints is that they are very realistic as the data is coming from real human specimen. Nothing is shaped or stylized.

The users have to handle these prints with utmost care. They are not made for touching or bending any thin nerves, arteries, vessels etc. The 3D printed models should sit on a table and just rotated at the table.

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by Erler Zimmer Monash University   —   Item # MP2041
3D Printed Acute Bacterial Endocarditis
$339.00 $377.00
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