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[Surgical treatment of heart valve defects in infectious endocarditis].

The study makes an assessment of the results of surgical treatment of infectious endocarditis in 25 patients operated in 1982-1988 at the Institute of Experimental and Clinical Medicine. At the active stage of the disease, surgery was performed on 15 patients (60%), while prior to the operation, 16 persons' condition (64%) corresponded to the IIIrd and IVth degree of the NYHA functional classification. In infectious endocarditis, early mortality after valve replacement was 8%, late mortality--9% with an average of two-year post operative follow-up. Re-infection occurred in 12% patients, paravalvular regurgitation was found in 20 percento, out of whom 8% were haemodynamically significant and associated with the infection. Clinical post-operative improvement was observed in 76% patients, out of whom one half was totally asymptomatic and one third resumed their jobs. The results show that early surgical treatment of infectious endocarditis helps to reduce mortality. The post-operative risk of re-infection or of other complications was not high and the long-term post-operative functional effect was favourable in most patients.

Adolescent↗

[Neurological complications of infectious endocarditis].

Of 204 patients with infectious endocarditis (IE) treated in the hospital in 1980-2000, 43(21.2%) developed neurological complications. These were: ischemic stroke (72.1%), hemorrhagic stroke (9.3%), both (7%), abscess and subarachnoidal hemorrhage (2.3% for each), meningitis (7%), toxic encephalopathy (11.6%). Neurological complications of IE arose prior to treatment and within the first week of antibacterial therapy in 63% cases, more frequently in the left carotid territory. Neurological complications in IE debute manifested acutely, pareses were more frequent than paralyses, with elevated temperature, low hemoglobin and red cell levels, leukocytosis. MRT detected 8 +/- 4.6 foci in the brain, CT--2 +/- 1.1, on the average. Lethality of IE patients with neurological complications reached 58.1% and was significantly higher than in those without such complications (14.9%, p < 0.001). Overall acturial survival 1 year after the discharge from the hospital was 94.4%, 5-year survival--61.1%, 10-year survival--11%.

Adolescent↗

[Diagnosis and therapy of infectious endocarditis. What measures are required?].

Infectious endocarditis remains a potentially life-threatening disease, the outcome of which can be substantially influenced by rapid diagnosis and initiation of suitable treatment. Leading clinical features are fever, a new sound suggestive of valvular insufficiency and, when the course is subacute, anemia. The main diagnostic procedures are transthoracic and transesophageal echocardiography that reliably identify vegetation, valvular insufficiency and abscess. Of decisive importance for treatment and prognosis is the rapid identification of the pathogen by means of blood culture and, if necessary, serologic and molecular-biologic measures. Antimicrobial treatment is applied in accordance with the recommendations of the American Heart Association. Surgical treatment is indicated in the event of refractory infection, severe valvular insufficiency with heart failure, valve avulsion, recurrent emboli or large floating vegetation with an elevated risk of embolism.

Anti-Bacterial Agents↗

[Therapy and prevention of infectious endocarditis].

Only 40 years ago infectious endocarditis (IE) was lethal in most cases. Due to the development of numerous antibiotics and continuous improvements in heart valve surgery, a wide range of possibilities for therapy and prophylaxis of IE are available. The prognosis depends essentially on rapid and relevant diagnosis, which should be followed by immediate and adequate therapy consisting of general measures for treatment of septicaemic disease and specific antibiotic therapy. As multiple complications may develop during IE, careful follow-up by clinical, laboratory and mechanical examinations is necessary to decide whether surgical intervention is urgently indicated or not. In case of complications such as myocardial failure, septicaemic embolism or acute renal failure, as well as septicaemia persisting for more than 72 hours in spite of antibiotic treatment, immediate valve replacement is usually indispensable. Furthermore, large vegetations found by echocardiography, or infections caused by staphylococci, gramnegative bacteria or fungi are arguments for early surgery. For most of the IE pathogens the antibiotic treatment concept is nowadays widely acknowledged. Penicillin-sensitive streptococci are treated with a combination of penicillin S and an amino-glycoside (streptomycin). If the penicillin-MBK is very low, combined treatment can usually be abandoned. In patients allergic to penicillin, treatment with lincomycin has advantages over vancomycin or cephalosporins. In enterococcal IE, ampicillin plus aminoglycoside is the combination of choice. Streptomycin has preference over gentamicin here only if the enterococci are not streptomycin-resistant. If penicillin allergy is evident, the new beta-lactam antibiotic imipenem offers a way out of the present therapy dilemma. For penicillin-sensitive staphylococci a combination of penicillin-G with gentamicin given over 6 weeks is recommended. In case of penicillin allergy, cefazolin or vancomycin may provide a substitute for penicillin. In penicillin-resistant staphylococci the combination of oxacillin or flucloxacillin with gentamicin is established. Fungal endocarditis can be treated with a combination of amphotericin-B and flucytosin. Cure without surgery, however, is rare. For the large remaining number of pathogens which are less frequently responsible for IE, antibiotic management depends on sensitivity test in vitro, as the sensitivity of pathogens may vary widely. Though not only groups of patients with high infection rates are widely known, but also the events provoking the infections, the prophylaxis of IE continues to be inadequate.(ABSTRACT TRUNCATED AT 400 WORDS)

Anti-Bacterial Agents↗

[Infectious endocarditis--new aspects of a well-known disease].

The authors discuss the incidence, etiology and pathogenesis of infectious endocarditis. They mention the incidence and therapeutic results in patients with infectious endocarditis hospitalized at the First Medical Clinic in Martin in 1988-1993. In the conclusion they present general principles of the treatment of infectious endocarditis.

Adolescent↗

[Effect of age on the prognosis of infectious endocarditis].

The aim of this study was to evaluate the influence of age on the prognosis of infectious endocarditis. A retrospective study from 1987 to 1997 of 136 patients with infectious endocarditis on native, prosthetic valves or cardiac pacing catheter was performed. The outcome was analysed with the help of general practitioners. Two groups of patients were compared: 87 patients of 65 years of age or more (Group 1) and 49 patients under 65 years of age (Group 2). With a follow-up period of 5 years, the global mortality was 35%, but greater in Group 1 (p = 0.06). Cardiac failure was the main cause of death. The mortality was significantly higher in patients who were not operated (p < 0.002). The authors conclude that age of over 65 does not significantly worsen the prognosis of infectious endocarditis. The absence of surgery seems to be an indirect factor of a poor prognosis. Long-term follow-up of patients is necessary to diagnose and treat cardiac failure at an early stage and to consider referral for surgery.

Age Factors↗

[Infectious endocarditis complicated with preoperative cerebral infarction and rupture of infectious intracranial aneurysm].

A surgically treated case of infectious endocarditis (IE) complicated with preoperative cerebral infarction and rupture of mycotic intracranial aneurysm was reported. A 66-year-old male was admitted with the diagnosis of active IE due to Streptococcus sanguis, complicated with cerebral infarction 17 days previously. Preoperative echocardiography showed mobile vegetations both on the aortic and the mitral leaflet, sizes of which were 12.6 and 25 mm. The magnetic resonance imaging (MRI) demonstrated a subarachnoid homorrhage due to the rupture of an intracranial aneurysm, and was treated surgically. The bacteriological study of the resected aneurysm showed Streptococcus sanguis. Eleven days after the operation, both the aortic and the mitral valve replacement were performed. There were mobile vegetations on the aortic and the mitral leaflet. There were no new neurological findings after operation. The duration between the cranial surgery and the cardiac surgery was thought to be important to prevent the new neurological complication.

Aged↗

[Current course of infectious endocarditis].

Etiological factors, clinical manifestations, laboratory evidence and outcomes of infectious endocarditis (IE) were studied in 59 patients treated in 1981-1996. Cases of the secondary form predominated. Previously described stages (infectious-toxic, immuno-inflammatory, dystrophic) were not observed. Systemic immunocomplex pathology with development of myocarditis, nephritis, arthritis, serositis occurred frequently. Causes of late diagnosis are analysed, recommendations on management of patients with risk factors of infectious endocarditis, preventive measures are provided.

Adolescent↗

An autopsy case of infectious endocarditis in a methamphetamine abuser usefulness of microbiological examination.

We present here a case of sepsis due to infectious endocarditis in a methamphetamine abuser. A 32 year-old male presented high fever and abdominal pain last two weeks. He was admitted to the hospital on the diagnosis of infectious endocarditis. In the evening on the day of admission, he suddenly collapsed. Despite of cardiopulmonary resuscitation, his death was confirmed. From the autopsy findings, toxicological analysis and results of the microbiological examination, we concluded that the cause of death was septic shock due to infectious endocarditis, presumably based on the methamphetamine abuse. The result obtained from microbiological examination gave us useful information. We shall have to be on the lookout, not only for acute poisoning, but also for cases of drug abuse related deaths.

Adult↗

[Rare and atypical manifestations of infectious endocarditis].

Along with typical clinical symptoms in present-day infectious endocarditis atypical picture may arise: impairment of CNS and cardiac muscle with psychosis, arrhythmia, defective cerebral circulation, heart failure. In the absence of typical manifestations diagnosis of infectious endocarditis presents difficulties.

Arrhythmias, Cardiac↗

[Infectious endocarditis of prosthetic valves due to Staphylococcus capitis: a new case].

We present the case of a male patient with aortic and mitral valve bioprostheses who developed infectious endocarditis due to Staphylococcus capitis, which has recently been described as an agent producing infectious endocarditis in native and prosthetic cardiac valves. The patient's course evolved unfavorably, despite specific antibiotic treatment, leading to the surgical replacement of the valve, which completely resolved the problem. This case points out that, although rare, in infectious endocarditis due to Staphylococcus capitis its pathogenicity is significant.

Aortic Valve↗

[Tricuspid infectious endocarditis in Brazzaville. Apropos of 12 cases].

The authors report their experience of the clinical and echocardiographic aspects and course of tricuspid infectious endocarditis, based upon 12 cases collected between September 1985 and December 1992. The diagnosis was confirmed on the basis of the association of signs of septicemia (12 cases), at least two positive blood cultures for the same organism (9 cases) and well-defined vegetations seen by trans-thoracic echocardiography (12 cases). All patients were young women: mean age = 21.8 +/- 4.7. None were heroin addicts but one was positive for human immune deficiency virus. Tricuspid infectious endocarditis was most often acute (9 cases), primary (10 cases, post-abortum (11 cases), due to Staphylococcus aureus (5 cases), and complicated by cardiac failure (12 cases) and lung abscess (4 cases). Four patients died of septicemia (2 cases), of cardiac failure and lung abscess (2 cases). One had severe tricuspid incompetence requiring surgery. It has not yet been possible to operate on this patient because of the lack of cardiac surgery facilities in Congo. The prevention of tricuspid infectious endocarditis depends above all on the fight against clandestine abortions and against the development of intravenous drug abuse.

Adolescent↗