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Biomedical subjects

P Podrabský

Publications and source records attributed to P Podrabský.

At least 19 recordsLinked to original sources

[Revascularization of the aortoiliac arteries using stents].

The authors summarised their three year experience with endovascular treatment of the aortoiliac artery obstructive lesions using stents and transluminal angioplasty. Fifty-seven patients (61 limbs) underwent stent implantation to treat claudications (n = 50 limbs), rest pain (n = 6), non-healing defects (n = 4) and one patient was asymptomatic (n = 1). After stent placement patients were followed-up using clinical and duplex ultrasound examinations at 3 months and 6 months thereafter. Immediate angiographic success was achieved in all cases. Three serious complications were observed. Percutaneous reinterventions because of stenosis inside the stent were performed in 7 patients (7 limbs). The primary patency rates were 92% at 1 year, 88% at 2 years and 86% at 3 years. Cumulative primary assisted patency were 98% (mean follow-up 15.8 months, range 3-47 months). Regular clinical and ultrasound follow-up examinations can reveal the asymptomatic instent stenosis and percutaneous reinterventions can improve long-term stent patency.

Adult↗

Cyanoacrylates: an ideal agent for intravascular embolotherapy?

From a large number of various embolic agents introduced in interventional radiology in last two decades it seems that an ideal embolic agent for intravascular embolization has not been found yet. The favourable properties of one of these agents - n-butyl 2-cyanoacrylate are presented by authors. It is concluded that the intravascular embolotherapy with n-butyl 2-cyanoacrylate performed in a strict accordance with the technical demands has proved to be efficient in the management of symptomatic arteriovenous malformations, in the percutaneous transhepatic embolization of gastroesophageal varices and in palliative embolization of renal tumors.

Arteriovenous Malformations↗

[The role of the exercise test in patients with ischemic heart disease in estimating the risk of sudden death].

The authors evaluated after 4-year interval the results of coronarographic and spiroergometric examination after a work load on a bicycle ergometer up to the limiting work syndrome in 51 all patients with the aim to reveal "risk factors" of sudden death in CHD patients. The following parameters were recorded: age, duration of treatment number of cigarettes smoked, systolic blood pressure at rest and the daily dose of the most frequently used drugs. After the work load the limiting values of pulse rate, systolic blood pressure, oxygen consumption, blood lactate level and the work ECG were evaluated. In the group of 7 sudden deaths of CHD patients the authors found statistically significant (p less than 0.001) a lower mean limiting value of oxygen consumption/kg and a deeper (p less than 0.0001) mean depression of the S-T segment in the work ECG when compared with 35 CHD patients surviving for 4 years. Both indicators are considered the main "risk factors" for sudden death.

Adult↗

[Results of surgical treatment of aortic coarctation].

The authors summarize the results of surgical treatment of coarctation of the aorta in 98 patients. Te group comprised 70 children aged 3 to 15 years and 28 adults. The most frequently used technique was resection of the coarctation with a direct end-to-end anastomosis. It was used in a total of 83 patients. Three patients died, i. e. 3.1%. Of 32 patients who were invited for a check-up examination 16 came. Three of them had undergone a plastic operation with a dacron patch. All were subjected to angiographic examination in a lateral projection by injection of the contrast substance into the aortal arch and pressure readings were taken in the aorta above and below the site of anastomosis. Residual gradients were found in three patients (10, 12, 20 torr). Hypertension persists in 6 patients. In four patients slight stenosis of the aorta was found without a gradient, in one patient a small pseudoaneurysm. None of the findings called for further surgical intervention.

Adolescent↗

The development of symptomatology and functional condition in patients with negative or minimal findings on coronary vessels after 5 to 10 years.

The authors compared two groups of men: the group with minimal sclerotic wall changes (n = 18) and the group with a normal coronary angiographic finding (n = 32). All the examinations were repeated after 5 to 10 years (mean 8.4 years). The two groups did not differ in the occurrence of the main IHD risk factors, complaints, kind and amount of principal drugs and working history. No statistically significant differences were found between the groups in the reasons for discontinuing bicycle ergometric test or in the exercise ECG finding. The two groups studied did not differ in the mean values of limiting metabolic and cardiologic parameters (oxygen consumption, lactate, pulse rate, RPP index) either. The conclusion can be made that in the functional and clinical prognosis the group of symptomatic men with minor sclerotic wall changes does not differ practically from individuals with completely normal coronary angiography.

Adult↗

[Malignant tumors of the heart from the viewpoint of the surgeon].

The authors present three cases of malignant affections of the heart. In two instances a primary haemangiosarcoma was involved which originated in the right atrium, in the third patient a secondary of a left ovarian carcinoma was involved. They draw attention to the similar symptomatology of the disease and the possibility of echocardiographic visualization of intracardiac formations. The possibilities of radical removal of malignant tumours of the heart are very limited and call for the use of extracorporeal circulation. The incidence of this disease is very rare.

Adult↗