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At least 343 records · Page 19Linked to original sources
PubMed1997

[Intraoperative and follow-up color Doppler echocardiography for evaluating the surgical results of aortic valvuloplasty in a patient with bicuspid aortic valve].

A 21-year-old man underwent aortic valvuloplasty for aortic regurgitation due to bicuspid aortic valve. After the initial procedure for valvuloplasty of the anterior cusp, transesophageal color Doppler flow imaging revealed a significant regurgitant jet directed posteriorly as observed preoperatively. After an additional valvuloplastic procedure for the anterior cusp, the size of the regurgitant signal was reduced and directed to the center of left ventricular outflow tract. The surgery was then completed. On the 5th postoperative day, an aortic regurgitant murmur reappeared and color Doppler echocardiography showed a mild but significant regurgitant jet directed toward the interventricular septum, which may have been due to contraction of the anterior cusp treated by valvuloplasty. Aggravation of the aortic regurgitation in the early stage after plastic surgery is important and requires consideration in the intraoperative assessment.

Adult↗
PubMed1997

[Mitral valve prolapse associated with the aortic bicuspid valve. Discription of a clinical case].

In the literature, the mitral valve prolapse and bicuspid aorta have been widely discussed as isolated cases or in association with other congenital heart pathologies or systematic illnesses. Nevertheless, they have not been documented contemporarily in the same clinical case. The following case describes a healthy, young, asymptomatic athlete, who has a double valvular heart failure. The defect is occasionally evident during transthoracic echocardiographic examination. The role of echocardiography is stressed taking into consideration the natural lineage and unfavourable reciprocal effect on cardiac hemodynamics, omitting relative implications of familial pathologies. This method is suggested as the means of suitable evaluation for athletes. In fact, this is the best technique to reveral the most precocious modification of cardiac hemodynamic. Consequently, echocardiography allows us to guide and monitor the most appropriate therapy.

Adult↗
PubMedDate not supplied

Bicuspid aortic valve and coarctation of aorta.

Bicuspid aortic valve (BAV) and coarctation of aorta (COA) are frequently seen together. It is believed that these malformations result from a single developmental diathesis. A case is presented of COA, aortic stenosis and aneurysm of the ascending aorta corrected by patch aortoplasty and commisurotomy. An aneurysm at the site of the coarctation repair can develop as late as 20 to 25 years after surgery. Almost all of the aneurysms described have occurred in patients undergoing patch aortoplasty. We do not recommend this technique except in special cases.

Aortic Aneurysm↗
PubMed1997

[Q fever endocarditis and bicuspid aortic valve].

Q fever is caused by the rickettsia Coxiella burnetti, an obligate intracellular bacterium acquired by inhalation of infected dust from subclinically infected animals. Q fever may be acute or chronic; the chronic form mostly presents as endocarditis. Immunocompromised states and underlying heart disease are the most important risk factors. Usually the symptoms of Q fever endocarditis are nonspecific and diagnosis is often established very late. New criteria for diagnosis include a single blood culture positive for Coxiella burnetti, positive Q fever serology and characteristic echocardiographic studies. We describe a 49-year-old man with bicuspid aortic valve admitted with fever, weight loss and a new heart murmur. The diagnosis of Q fever endocarditis was established by positive Q fever serology, and an echocardiogram showing vegetations and valvular dysfunction. This case suggests that Q fever endocarditis should be considered in patients with "sterile" endocarditis.

Aortic Valve↗
PubMed1997

Treatment of functional tricuspid regurgitation by bicuspidalization annuloplasty during mitral valve surgery.

BACKGROUND AND AIMS OF THE STUDY: Surgical treatment of functional tricuspid regurgitation associated with advanced valvular disease remains controversial, mainly due to the difficulty in choosing between valve replacement or reconstructive surgery. Failure to correct tricuspid regurgitation during valvular surgery carries a poor prognosis, as reoperation may represent a significant risk to the patient. Thus correct tricuspid valve surgery is vital to achieve improved early and long-term clinical results. METHODS: A total of 142 patients underwent concomitant tricuspid annuloplasty with mitral valve replacement and their clinical outcome was assessed. RESULTS: Overall hospital mortality rate was 11.3%. Seven patients died during follow up. The overall actuarial survival rate for 10 years was 74.1 +/- 14.2%. Postoperatively, 75.8% of the patients had no residual tricuspid insufficiency, while 24.2% had first- or second-degree tricuspid insufficiency and were treated medically. All patients were in NHYA functional class I or II postoperatively. CONCLUSION: Clinically, it is important to assess the severity of functional tricuspid insufficiency before and/or during the operation. Bicuspidalization annuloplasty for functional tricuspid insufficiency has provided good results, with a low incidence of reoperation and significant clinical improvement. The technique could be used in most patients with functional tricuspid regurgitation.

Adolescent↗
PubMed1998

[Aortic regurgitation with stenosis due to congenitally bicuspid valve with fibrous band: a surgical case report].

A 62-year-old man with aortic regurgitation and stenosis underwent aortic valve replacement. Intraoperative findings showed fibrous band between the edge of the raphe and the ascending aorta. Such fibrous bands are usually observed in juvenile pure aortic valve regurgitation due to congenitally bicuspid valve with degenerative change and are related to cause aortic insufficiency. The present patient was comparatively old, and the aortic regurgitation was combined with stenosis, which revealed sclerotic change on histological examination.

Aortic Valve↗
PubMed1998

[Rare causes of the dysfunction of mechanical bicuspid heart valves].

The authors share the observations from their cardiosurgical practice showing that one of the causes of sudden death or of rapid worsening of the state of patients with implanted bicuspid artificial valves might be their dysfunction resulting both from breakage of the hinged mechanisms of the valve with its dislocation and migration and from the disturbed mobility of the valve cusp due to a thrombus formed in the atrium. The observations show that the "ideal" construction of the valve is to be created.

Adult↗
PubMed1989

[Recent comparative statistical correlation studies on predicting the space requirement of the cuspid and bicuspid region using multiple regression comparisons].

The purpose of the investigation was to develop multiple regression equations to calculate the space requirements in the canine and premolar regions. The investigation was based on study models from a group of 63 (36 males and 27 females) patients with an ideal Angle class I occlusion. The mesiodistal width of unerupted incisors and the buccolingual and mesiodistal width of first molars were used as independent variables. A test group of 64 study models (32 males and 32 females) from orthodontically treated patients was used to represent the malocclusions typically present in an orthodontic clinic or practice. The space requirement can be predicted from three variables in both upper and lower jaws. The inclusion of more variables does not significantly improve the prediction. The correlation coefficient for the buccolingual width of the first lower molar was significantly higher than that for the mesiodistal width. The combination of 22, 32 and 36 (buccolingual) achieved the highest correlation coefficient in both groups. Further, if at the time of analyses, one of the canines or premolars (33, 34 or 24) has erupted their width may be included as an additional independent variable. The correlation and regression coefficients for males and females showed no significant difference.

Bicuspid↗