Biomedical subjects

Petr Drác

Publications and source records attributed to Petr Drác.

9 recordsLinked to original sources

PubMed2005

p53--prognostic factor of malignant transformation of Barrett's esophagus.

The most significant precancerosis in the esophageal cancer is Barrett's esophagus. The risk of malignant transformation is determined primarily in accordance with the degree of dysplastic alterations of the mucosa. Indication of "preventive" extirpation of the esophagus should be supported by other factors, for example by detection of p53 mutation or expression. The study reports on the evaluation of a group of 20 patients with Barrett's esophagus treated at the 1st Department of Surgery, the p53 level and its correlation with histological findings evaluated in these patients. A good correlation was found between the grade of Barrett's esophagus dysplasia and high p53 positivity. This correlation was also confirmed by detection of early carcinoma in patients with "preventive" extirpation of the esophagus due to a high-grade dysplasia. Preliminary results show that examination of p53 level in specimens taken from the esophageal mucosa may be helpful for the estimation of malignant potential of the dysplastic mucosa.

Barrett Esophagus↗

PubMed2005

Treatment possibility for AAA of the visceral branches region.

The authors describe a promising abdominal aortic aneurysm treatment--a combined endovascular/surgical approach--used in two cases of aneurysm taking the aortic visceral branches region.

Aortic Aneurysm, Abdominal↗

PubMed2005

Combined strategy in AAA elective treatment.

The authors describe surgical treatment for high risk patients with abdominal aortic aneurysms of complicated morphology for standard endovascular repair. This was achieved by combining endovascular stent-grafting for aneurysmal sac exclusion with conventional vascular surgical procedures.

Aortic Aneurysm, Abdominal↗

PubMed2004

Peripheral venous hypertension after the creation of arteriovenous fistula for haemodialysis.

The function of an arteriovenous (av) fistula for haemodialysis may be complicated by manifestation of peripheral venous hypertension, which results from the arterial blood flow through the venous system into the periphery of the upper extremity. Its development is most typically caused by a proximal forearm av-fistula, as, in addition to the desirable arterialisation of the subcutaneous venous system of the arm, arterialisation of the venous system of the forearm and the hand may occur and possibly promote the development of venous hypertension, which may in the extreme result in gangrene of the fingers. Awareness of these problems as well as of the necessity of their surgical solution is essential for doctors dealing with haemodialysis.

Arteriovenous Shunt, Surgical↗

PubMed2004

Femoral - internal iliac bypass in aortoiliac aneurysms endovascular repair.

The authors describe femoral - internal iliac bypass creation to remove ischemic complications in aortoiliac aneurysm endovascular repair. Based on a good experience with bypass in 6 patients they recommend its preventive indication when both internal iliac arteries are overstented.

Aortic Aneurysm, Abdominal↗

PubMed2004

Banding in aortic stent-graft fixation in EVAR.

The authors describe the method of surgical aortic banding for better stent-graft fixation in cases of problematic aortic neck in the endovascular infrarenal aneurysms repair.

Aged↗

PubMed2004

AAA elective treatment indication tactics in EVAR era.

The authors describe their indication tactics for AAA elective treatment. Based on one-month morbidity and mortality they evaluate the results obtained in the past six years and compare the methods of open surgery, endovascular repair and combined strategy in AAAs elective repair.

Aortic Aneurysm, Abdominal↗

PubMed2004

Peritoneovenous shunt - modification with the use of long saphenous vein.

The authors describe their own initial experience with saphenoperitoneal modification of the peritoneovenous shunt in intractable ascites solution. Their findings with this easy type of permanent ascites drainage using the "patient's own resources" are puzzling.

Ascites↗

PubMed2004

Iliac-renal bypass in EVAR of AAA with renal arteries arising from aneurysmal sac.

The authors describe treatment possibility for AAA with renal arteries arising from aneurysmal sac in high operating risk patients. They combined endovascular stent-grafting for aneurysmal sac exclusion and classical vascular surgical iliacrenal bypass for revascularisation of excluded renal arteries.

Aged↗