scholarly journals Streptococcus pyogenes Pericarditis with Resultant Pulmonary Trunk Compression Secondary to Mycotic Pseudoaneurysm

2018 ◽  
Vol 2018 ◽  
pp. 1-4
Author(s):  
E. Fry ◽  
J. Urbanczyk ◽  
J. Price ◽  
R. Digiovanni ◽  
M. Jepson ◽  
...  
Keyword(s):  
Streptococcus Pyogenes ◽  
Mycotic Aneurysm ◽  
Pulmonary Arteries ◽  
Ascending Aorta ◽  
Pulmonary Trunk ◽  
Purulent Pericarditis ◽  
Mycotic Pseudoaneurysm ◽  
History Of ◽  
Group A ◽  
Mycotic Aneurysms

Purulent pericarditis is a rare disease in the era of antibiotics, with Streptococcus pyogenes being a possible, though uncommon etiology. Even more uncommon are mycotic aneurysms secondary to group A strep purulent pericarditis and bacteremia. We report a case of an 18-year-old female with a history of strep pharyngitis develop Streptococcus pyogenes purulent pericarditis with subsequent ventricular fibrillation (VF). Following initial stabilization, she ultimately developed a 4.8 cm mycotic aneurysm of the ascending aorta, with resultant compression of the pulmonary trunk and right pulmonary arteries.

scholarly journals Genome Sequence of a Nephritogenic and Highly Transformable M49 Strain of Streptococcus pyogenes

2008 ◽  
Vol 190 (23) ◽  
pp. 7773-7785 ◽  
Author(s):  
W. Michael McShan ◽  
Joseph J. Ferretti ◽  
Tadahiro Karasawa ◽  
Alexander N. Suvorov ◽  
Shaoping Lin ◽  
...  
Keyword(s):  
Streptococcus Pyogenes ◽  
Group A Streptococcus ◽  
Genetic Material ◽  
Model Organism ◽  
Nudix Hydrolase ◽  
History Of ◽  
Group A ◽  
Short Palindromic Repeat ◽  
Post Streptococcal Glomerulonephritis ◽  
Type 3

ABSTRACT The 1,815,783-bp genome of a serotype M49 strain of Streptococcus pyogenes (group A streptococcus [GAS]), strain NZ131, has been determined. This GAS strain (FCT type 3; emm pattern E), originally isolated from a case of acute post-streptococcal glomerulonephritis, is unusually competent for electrotransformation and has been used extensively as a model organism for both basic genetic and pathogenesis investigations. As with the previously sequenced S. pyogenes genomes, three unique prophages are a major source of genetic diversity. Two clustered regularly interspaced short palindromic repeat (CRISPR) regions were present in the genome, providing genetic information on previous prophage encounters. A unique cluster of genes was found in the pathogenicity island-like emm region that included a novel Nudix hydrolase, and, further, this cluster appears to be specific for serotype M49 and M82 strains. Nudix hydrolases eliminate potentially hazardous materials or prevent the unbalanced accumulation of normal metabolites; in bacteria, these enzymes may play a role in host cell invasion. Since M49 S. pyogenes strains have been known to be associated with skin infections, the Nudix hydrolase and its associated genes may have a role in facilitating survival in an environment that is more variable and unpredictable than the uniform warmth and moisture of the throat. The genome of NZ131 continues to shed light upon the evolutionary history of this human pathogen. Apparent horizontal transfer of genetic material has led to the existence of highly variable virulence-associated regions that are marked by multiple rearrangements and genetic diversification while other regions, even those associated with virulence, vary little between genomes. The genome regions that encode surface gene products that will interact with host targets or aid in immune avoidance are the ones that display the most sequence diversity. Thus, while natural selection favors stability in much of the genome, it favors diversity in these regions.

scholarly journals Development of Multiple Aortic Mycotic Aneurysms After Cardiac Catheterization

2017 ◽  
Vol 5 (4) ◽  
pp. 232470961774090
Author(s):  
Desiree A. Steimer ◽  
John J. Squiers ◽  
J. Michael DiMaio ◽  
Katherine B. Harrington
Keyword(s):  
Cardiac Catheterization ◽  
Aortic Root ◽  
Coronary Artery Bypass Surgery ◽  
Bypass Surgery ◽  
Artery Bypass ◽  
Ascending Aorta ◽  
Aortic Root Replacement ◽  
Past Medical History ◽  
History Of ◽  
Mycotic Aneurysms

A 71-year-old male with a past medical history of coronary artery bypass surgery developed multiple, infected pseudoaneurysms of the ascending aorta and aortic root 1 year after cardiac catheterization. He underwent aortic root replacement with a 24-mm homograft. Tissue culture from operative specimens revealed invasive Aspergillus fumigatus infection. He was treated with voriconazole for 3 months. After 1 year, he had no recurrence of symptoms, pseudoaneurysm, or fungal infection.

scholarly journals Ruptured Intracranial Mycotic Aneurysm in Infective Endocarditis: A Natural History

2010 ◽  
Vol 2010 ◽  
pp. 1-7 ◽  
Author(s):  
Isabel Kuo ◽  
Theodore Long ◽  
Nathan Nguyen ◽  
Bharat Chaudry ◽  
Michael Karp ◽  
...  
Keyword(s):  
Infective Endocarditis ◽  
Natural History ◽  
Intracranial Aneurysms ◽  
Mycotic Aneurysm ◽  
Treatment Modalities ◽  
Intraparenchymal Hemorrhage ◽  
Retrospective Case ◽  
Aneurysm Clipping ◽  
History Of ◽  
Mycotic Aneurysms

Mycotic aneurysms are a rare cause of intracranial aneurysms that develop in the presence of infections such as infective endocarditis. They account for a small percentage of all intracranial aneurysms and carry a high-mortality rate when ruptured. The authors report a case of a 54-year-old man who presented with infective endocarditis of the mitral valve and acute stroke. He subsequently developed subarachnoid hemorrhage during antibiotic treatment, and a large intracranial aneurysm was discovered on CT Angiography. His lesion quickly progressed into an intraparenchymal hemorrhage, requiring emergent craniotomy and aneurysm clipping. Current recommendations on the management of intracranial Mycotic Aneurysms are based on few retrospective case studies. The natural history of the patient's ruptured aneurysm is presented, as well as a literature review on the management and available treatment modalities.

scholarly journals Pulmonary trunk to ascending aorta ratio and reference values for diameters of pulmonary arteries and main bronchi in healthy adults

2020 ◽  
Vol 14 (1) ◽  
pp. 22-28
Author(s):  
Büşra Pirinç ◽  
Zeliha Fazlıoğulları ◽  
Mustafa Koplay ◽  
Ahmet Kağan Karabulut ◽  
Nadire Ünver Doğan
Keyword(s):  
Reference Values ◽  
Pulmonary Arteries ◽  
Ascending Aorta ◽  
Pulmonary Trunk ◽  
Healthy Adults

scholarly journals Cavernous Thrombophlebitis Secondary to Cavernous Internal Carotid Mycotic Aneurysm

2019 ◽  
Vol 10 (3) ◽  
pp. 221-223
Author(s):  
Devin J. Burke ◽  
Ashutosh Jadhav
Keyword(s):  
Mycotic Aneurysm ◽  
Internal Carotid ◽  
Case Reports ◽  
Case Series ◽  
Intravenous Drug Use ◽  
Cavernous Sinus Syndrome ◽  
Full Resolution ◽  
Fungal Endocarditis ◽  
History Of ◽  
Mycotic Aneurysms

We report a case of a 22-year-old male with a history of intravenous drug use presenting with cavernous sinus syndrome secondary to cavernous thrombophlebitis. The source of the thrombophlebitis was from a mycotic aneurysm in the setting of fungal endocarditis. With antifungal therapy and aortic valve replacement, the patient had full resolution of cranial nerve deficits. Descriptions of mycotic aneurysms of the cavernous portion of the internal carotid artery are limited to case reports and case series. Most have been nonendocarditic in etiology with poor prognosis. We present a unique case with endocarditic etiology and an excellent prognosis.

Mycotic Ascending Aortic Pseudoaneurysm at Aortic Cannulation Site

2009 ◽  
Vol 17 (4) ◽  
pp. 417-418 ◽  
Author(s):  
Gökçe Şirin ◽  
Ŏuz Yilmaz ◽  
Ergun Demirsoy ◽  
Servet Alan ◽  
Nerime Soybir ◽  
...  
Keyword(s):  
Mycotic Aneurysm ◽  
Bypass Surgery ◽  
Coronary Bypass ◽  
Ascending Aorta ◽  
Fatal Complication ◽  
Aortic Pseudoaneurysm ◽  
Aortic Cannulation ◽  
Mycotic Pseudoaneurysm ◽  
Cannulation Site ◽  
Ascending Aortic Pseudoaneurysm

Mycotic aneurysm of the aorta is a rare but highly fatal complication of coronary bypass surgery. A 49-year-old man developed mycotic pseudoaneurysm in the ascending aorta after coronary bypass in another hospital. Computed tomography showed the pseudoaneurysm originated from the previous aortic cannulation site. The defect was successfully repaired with pericardial-pledgeted sutures.

scholarly journals Purulent Pericarditis Due to Group B Streptococcus and Mycotic Aneurysm of the Ascending Aorta

2000 ◽  
Vol 64 (1) ◽  
pp. 83-86 ◽  
Author(s):  
Yoshihiro Akashi ◽  
Yasuhiko Ikehara ◽  
Akiko Yamamoto ◽  
Noriyuki Suzuki ◽  
Naohiko Osada ◽  
...  
Keyword(s):  
Mycotic Aneurysm ◽  
Group B Streptococcus ◽  
Ascending Aorta ◽  
Purulent Pericarditis ◽  
Group B

The value of resonance imaging in diagnosis of pulmonary mycotic aneurysm secondary to infective endocarditis

1993 ◽  
Vol 3 (1) ◽  
pp. 88-90
Author(s):  
Carlos Zabal ◽  
Samuel Ramírez-Marroqín ◽  
Fause Attie
Keyword(s):  
Magnetic Resonance Imaging ◽  
Infective Endocarditis ◽  
Aortic Coarctation ◽  
Congenital Heart ◽  
Mycotic Aneurysm ◽  
Pulmonary Trunk ◽  
Resonance Imaging ◽  
Before And After ◽  
Mycotic Aneurysms ◽  
Heart Lesions

SummaryMycotic aneurysms of the pulmonary trunk are a rare but recognized complication of infective endocarditis. They are usually associated with infected congenital heart lesions, and especially with persistent patency of the arterial duct. This report deals with a patient with a persistent duct and aortic coarctation who developed a mycotic aneurysm of the pulmonary trunk secondary to infective endocarditis. The lesion was evaluated before and after surgery by magnetic resonance imaging.

Hormonal stimulation and some risk factors studied to improve bovine pregnancy rate at the Coastal areas of Barisal district of Bangladesh

2018 ◽  
Vol 52 (1-4) ◽  
pp. 22-30
Author(s):  
A K Paul ◽  
S M T Rahman
Keyword(s):  
Pregnancy Rate ◽  
Coastal Region ◽  
Hormonal Treatment ◽  
Coastal Areas ◽  
Pregnancy Rates ◽  
Hormonal Stimulation ◽  
Crossbred Cows ◽  
Treatment Groups ◽  
History Of ◽  
Group A

Hormonal treatment of cows at the coastal region of Barisal district of Bangladesh was performed to assess the improvement of pregnancy rate. A total of 100 cows and heifers with irregular history of cyclicity were selected randomly and divided into five treatment groups. The groups were A (treated with anthelmintic), B (treated with anthelmintic, vitamin ADE and multivitamin powder), C (treated with PGF2α), D (treated with GnRH) and E (treated with GnRH and PGF2α). Each group comprised of 20 animals. The age, breed and parity of experimental cows were considered during treatment. In the study, the cows treated with both GnRH and PGF2α (group E) showed significantly (p<0.05) higher estrus (80%) and pregnancy rate (60%) than that of group A, B, C and D. The overall estrus rates of local and crossbred cows were 64% and 70%, respectively and the pregnancy rates were 40 and 52%, respectively. The crossbred cows responded significantly (p<0.05) to hormonal treatment than that of local cows. Parity-2 cows showed higher estrus sign than that of other parities. However, the pregnancy rates were higher significantly (p<0.05) in parity-2 and parity ≥4 cows than that of parity-0, parity-1 and parity-3 cows. The pregnancy rate was also found higher in case of 4 to <5 years old cows than that of 2 to <3, 3 to <4, 5 to <6, and ≥6 years old. It may conclude that the hormonal regimen increases the pregnancy rate as well as decreases the undesired waiting of estrus and conception. Further study with more sample size will reveal the more effective treatment for cows at the coastal areas of Bangladesh.

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