scholarly journals Repair of perivalvular leakage without re-replacement of prosthetic valves☆

2011 ◽  
Author(s):  
Masaaki Ryomoto ◽  
Masataka Mitsuno ◽  
Shinya Fukui ◽  
Yuji Miyamoto
Keyword(s):  
Prosthetic Valves ◽  
Perivalvular Leakage

scholarly journals Use of Sutureless and Rapid Deployment Prostheses in Challenging Reoperations

2021 ◽  
Vol 8 (7) ◽  
pp. 74
Author(s):  
Igor Vendramin ◽  
Andrea Lechiancole ◽  
Daniela Piani ◽  
Gaetano Nucifora ◽  
Giovanni Benedetti ◽  
...  
Keyword(s):  
Aortic Valve ◽  
English Language ◽  
Aortic Cross Clamp ◽  
Prosthetic Valves ◽  
Stentless Bioprostheses ◽  
Valve In Valve ◽  
Valve Sparing ◽  
Transcatheter Valve ◽  
Rapid Deployment ◽  
Language Literature

Sutureless and rapid-deployment bioprostheses have been introduced as alternatives to traditional prosthetic valves to reduce cardiopulmonary and aortic cross-clamp times during aortic valve replacement. These devices have also been employed in extremely demanding surgical settings, as underlined in the present review. Searches on the PubMed and Medline databases aimed to identify, from the English-language literature, the reported cases where both sutureless and rapid-deployment prostheses were employed in challenging surgical situations, usually complex reoperations sometimes even performed as bailout procedures. We have identified 25 patients for whom a sutureless or rapid-deployment prosthesis was used in complex redo procedures: 17 patients with a failing stentless bioprosthesis, 6 patients with a failing homograft, and 2 patients with the failure of a valve-sparing procedure. All patients survived reoperation and were reported to be alive 3 months to 4 years postoperatively. Sutureless and rapid-deployment bioprostheses have proved effective in replacing degenerated stentless bioprostheses and homografts in challenging redo procedures. In these settings, they should be considered as a valid alternative not only to traditional prostheses but also in selected cases to transcatheter valve-in-valve solutions.

scholarly journals Infective Endocarditis Due to Corynebacterium Species: Clinical Features and Antibiotic Resistance

2021 ◽  
Vol 8 (3) ◽  
Author(s):  
Anna Bläckberg ◽  
Linn Falk ◽  
Karl Oldberg ◽  
Lars Olaison ◽  
Magnus Rasmussen
Keyword(s):  
Antibiotic Resistance ◽  
Infective Endocarditis ◽  
Prosthetic Valve Endocarditis ◽  
Penicillin G ◽  
Severe Condition ◽  
Ionization Time ◽  
Prosthetic Valves ◽  
Corynebacterium Species ◽  
Corynebacterium Striatum

Abstract Background Corynebacterium species are often dismissed as contaminants in blood cultures, but they can also cause infective endocarditis (IE), which is a severe condition. Antibiotic resistance of corynebacteria is increasing making treatment challenging. Reports on IE caused by Corynebacterium species are scarce and more knowledge is needed. Methods Cases of IE caused by Corynebacterium species were identified through the Swedish Registry of Infective Endocarditis. Isolates were collected for species redetermination by matrix-assisted laser desorption ionization-time of flight and for antibiotic susceptibility testing using Etests. Results Thirty episodes of IE due to Corynebacterium species were identified between 2008 and 2017. The median age of patients was 71 years (interquartile range, 60–76) and 77% were male. Corynebacterium striatum (n = 11) was the most common IE causing pathogen followed by Corynebacterium jeikeium (n = 5). Surgery was performed in 50% and in-hospital mortality rate was 13%. Patients with IE caused by Corynebacterium species were significantly more likely to have prosthetic valve endocarditis (70%), compared with patients with IE due to Staphylococcus aureus or non-beta-hemolytic streptococci (14% and 26%, respectively) (P < .0001). Vancomycin was active towards all Corynebacterium isolates, whereas resistance towards penicillin G was common. Conclusions Corynebacterium species cause IE, where prosthetic valves are mainly affected and surgery is often performed. Corynebacterium striatum is an important causative agent of IE within the genus. Antibiotic resistance of corynebacteria is relatively common but resistance towards vancomycin could not be detected in vitro.

scholarly journals Infective endocarditis caused by HACEK group bacteria—a registry-based comparative study

2021 ◽  
Author(s):  
Anna Bläckberg ◽  
Christian Morenius ◽  
Lars Olaison ◽  
Andreas Berge ◽  
Magnus Rasmussen
Keyword(s):  
Staphylococcus Aureus ◽  
Infective Endocarditis ◽  
Mortality Rate ◽  
Haemophilus Influenzae ◽  
Comparative Study ◽  
Clinical Characteristics ◽  
Prosthetic Valve ◽  
Prosthetic Valve Endocarditis ◽  
Common Cause ◽  
Prosthetic Valves

AbstractInfective endocarditis (IE) caused by bacteria within Haemophilus (excluding Haemophilus influenzae), Aggregatibacter, Cardiobacterium, Eikenella and Kingella (HACEK) is rare. This study aimed to describe clinical features of IE caused by HACEK genera in comparison with IE due to other pathogens. Cases of IE due to HACEK were identified through the Swedish Registry of Infective Endocarditis (SRIE). Clinical characteristics of IE cases caused by HACEK were compared with cases of IE due to other pathogens reported to the same registry. Ninety-six patients with IE caused by HACEK were identified, and this corresponds to 1.8% of all IE cases. Eighty-three cases were definite endocarditis, and the mortality rate was 2%. The median age was 63 years, which was lower compared to patients with IE caused by other pathogens (66, 70 and 73 years respectively, p ≤ 0.01). Patients with IE caused by Haemophilus were younger compared to patients with IE due to Aggregatibacter (47 vs 67 years, p ≤ 0.001). Patients with IE due to HACEK exhibited longer duration from onset of symptoms to hospitalization and had more prosthetic valve endocarditis compared to patients with IE due to Staphylococcus aureus (10 vs 2 days, p ≤ 0.001, and 35 vs 14%, p ≤ 0.001). This is, to date, the largest study on IE due to HACEK. Aggregatibacter was the most common cause of IE within the group. The condition has a subacute onset and often strikes in patients with prosthetic valves, and the mortality rate is relatively low.

Corynebacterium Diphtheriae Endocarditis - Surgery for Some but Not All!

2005 ◽  
Vol 13 (2) ◽  
pp. 119-126 ◽  
Author(s):  
Bashisth Mishra ◽  
Rebecca J Dignan ◽  
Clifford F Hughes ◽  
Nick Hendel
Keyword(s):  
Surgical Treatment ◽  
Infective Endocarditis ◽  
Medical Treatment ◽  
Rare Disease ◽  
Corynebacterium Diphtheriae ◽  
Aggressive Disease ◽  
Prosthetic Valves ◽  
Immediate Surgery

Corynebacterium diphtheriae endocarditis was thought to be a rare disease. We reviewed our experience in four cases of this disease treated over a period of 10 years. Seventy cases reported in literature were reviewed. The outcome is good if cases are carefully selected for medical or surgical treatment. We conclude that infective endocarditis due to C. diphtheriae, is perhaps more common than expected. It may be recognized more frequently and on occasion may be an aggressive disease. Those patients with an abnormal valve (including prosthetic valves) should be subjected to surgery at the earliest available opportunity, whereas patients with normal valves may be carefully watched during the course of medical treatment as long as immediate surgery can occur if needed.

Acupuncture in Patients with Valvular Heart Disease and Prosthetic Valves

2003 ◽  
Vol 21 (3) ◽  
pp. 87-91 ◽  
Author(s):  
Anthony Stellon
Keyword(s):  
Heart Disease ◽  
Valvular Heart Disease ◽  
Acupuncture Treatment ◽  
Laboratory Data ◽  
Median Number ◽  
Prophylactic Antibiotics ◽  
Blood Cultures ◽  
Prosthetic Valves ◽  
Small Cohort

Endocarditis has been reported in patients with valvular heart disease who have undergone acupuncture treatment, although most have been associated with the use of semi-permanent needles. This has led reviewers to suggest that acupuncture may not only be contraindicated in such patients but that prophylactic antibiotics should be given. This study investigated the use of acupuncture treatment in patients with proven valvular heart disease and observed whether endocarditis developed in such patients. All patients in a single-handed GP practice with proven valvular heart disease, including those with prosthetic valves, were identified over a ten-year period. Those who had undergone acupuncture treatment underwent a clinical examination and diagnostic tests, which focused on the signs, symptoms and laboratory criteria for the diagnosis of endocarditis and included a transthoracic echocardiogram. Autopsy findings were reviewed in any patient who died. Based on these clinical and laboratory data, using the modified Duke's criteria for the diagnosis of endocarditis, patients were identified as having definite or possible endocarditis, or the diagnosis was rejected. All patients underwent brief acupuncture with no skin disinfectant and no prophylactic antibiotics were given. Semi-permanent needles were avoided. Thirty-six patients with valvular heart disease underwent a total of 479 acupuncture treatments over a ten-year period. The median number of treatments was 9 (range 1 – 72), with a follow-up after treatment of 5.75 years (range 0.5 – 10 years). Definite endocarditis was not found in any patient, but two patients had possible endocarditis, eventually discounted by both negative blood cultures and echocardiography. In conclusion, brief acupuncture was safe in this small cohort of valvular heart disease patients and no case of endocarditis was detected over a ten-year period.

scholarly journals Left ventricular ejection fraction reduction due to atrial fibrillation: clinical and echocardiographic predictors

2021 ◽  
Vol 10 (Supplement_1) ◽  
Author(s):  
E Marcusohn ◽  
O Kobo ◽  
M Postnikov ◽  
D Epstein ◽  
Y Agmon ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Left Ventricular Ejection Fraction ◽  
Ejection Fraction ◽  
Left Ventricular ◽  
Left Ventricular Ejection ◽  
Lv Function ◽  
Ventricular Ejection Fraction ◽  
Prosthetic Valves ◽  
Ventricular Response ◽  
History Of

Abstract Funding Acknowledgements Type of funding sources: None. Background  The diagnosis of atrial fibrillation (AF) induced cardiomyopathy can be challenging. It relies on ruling out other causes of dilated cardiomyopathy, upon recovery of left ventricular ejection fraction (LVEF) following return to sinus rhythm (SR). Aim  The aim of this study was to identify clinical and echocardiographic predictors for developing new dilated cardiomyopathy in patients with AF or atrial flutter (AFL). Methods  This is a retrospective study conducted in a large tertiary care center. Patients that suffered deterioration of LVEF under 50% during AF demonstrated by pre-cardioversion trans-esophageal echocardiography (TEE) were compared to those with preserved LV function during AF. All patients had documented preserved LVEF at baseline (EF >50%) while in SR. Patients with a previous history of reduced LVEF during SR were excluded. Results From a total of 482 patients included in the final analysis, 80 (17%) patients had reduced LV function and 402 (83%) had preserved LV function during the pre-cardioversion TEE. Patients with reduced LVEF were more likely to be male and with a more rapid ventricular response during AF/AFL. A history of prosthetic valves was also identified as a risk factor for reduced LVEF. Patients with reduced LVEF also had higher incidence of TR and RV dysfunction. Conclusion In "real world" experience, male patients with rapid ventricular response during AF or AFL are more prone to LVEF reduction. Patients with prosthetic valves are also at risk for LVEF reduction during AF/AFL. Lastly, TR and RV dysfunction may indicate relatively long-standing AF with an associated reduction in LVEF.

Uncommon Pathogen in an Unexpected Host: A Case of Rothia Mucilaginosa Endocarditis in an Immunocompetent Patient without Underlying Valvular Disease

2021 ◽  
Vol 4 (9) ◽  
pp. 01-01
Author(s):  
Ramy Abdelmaseih
Keyword(s):  
Opportunistic Pathogen ◽  
Immunocompetent Patient ◽  
Severe Neutropenia ◽  
Intravenous Drug Use ◽  
Upper Respiratory Tract ◽  
Infection Rates ◽  
Prosthetic Valves ◽  
Rothia Mucilaginosa ◽  
Upper Respiratory ◽  
Vascular Catheters

Rothia mucilaginosa, formally known as Stomatococcus mucilaginosus, is a gram-positive coccus that is found as a commensal in the oral cavity and upper respiratory tract. It is an infrequent opportunistic pathogen with very rare infection rates, mostly affecting immunocompromised patients such as patients with severe neutropenia, HIV infection, malignancy, diabetes mellitus, and liver cirrhosis. Infections in immunocompetent individuals are extremely rare, and usually related to pre-existing valvular heart disease, prosthetic valves and indwelling vascular catheters. Other risk factors for Rothia bacteremia include: intravenous drug use (IVDU).

201 VENOGRAPHY OF VENOUS PROSTHETIC VALVES IN THE CANINE MODEL

1986 ◽  
Vol 21 (9) ◽  
pp. S51
Author(s):  
A J Gerlock ◽  
T Phifer ◽  
W Grafton
Keyword(s):  
Canine Model ◽  
Prosthetic Valves
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