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Biomedical subjects

P Michálek

Publications and source records attributed to P Michálek.

4 recordsLinked to original sources

[Bacterial aortitis].

A cohort of 14 patients with bacterial destruction of various segments of the aortic wall is presented. The Salmonella enteritidis strain was predominantly responsible. Most patients had typical history of symptomatic trias of sepsis, abdominal and/or back pain and positive blood cultures. CT scan showed pseudoaneurysm within the thoracic, subphrenic or subrenal aorta as well as acute hemorrhage in three patients. One of these was excluded from invasive treatment due to hopeless prognosis. In one patient primary aortoduodenal phistula was responsible for GI bleeding. Five patients were operated and prosthetic replacement of subrenal or iuxtarenal aortic portion together with aortorenal bypass in a couple of cases was performed. In eight patients stentgrafts (SG) of various types were deployed completed with femorofemoral crossover bypass when necessary. All patients were subject to long-standing antibiotic therapy. Two patients expired following SG insertion, all operated patients survived. Average follow-up has been 1 year (1-22 months) so far. A groin abscess was later drained in one patient. Neither CT nor isotope scanning showed persistent or recurrent infectious or hemorrhagic foci in any survivors whatsoever. The authors review and consider the doubtful indication of aortic SG deployment into the septic terrain in selected cases. Midterm results might justify its use in overly debilitated patients otherwise not eligible for radical operation due to its prohibitive risk.

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[Minilaparotomy as an access route to vascular reconstruction procedures in the aortoiliac region].

Following the example of general surgical procedures, also vascular surgery gradually minimizes the size of its surgical entrances. Miniinvasive surgical procedures significantly reduce postoperative complaints and shorten the patients recovery rates. Minilaparotomy, either a hand-assisted or a laparoscopy-assisted procedure, a procedure conducted fully via laparoscopy or thoracoscopy and a robot-assisted procedure, all of the above are contemporary options for miniinvasive procedures in the vascular surgery. The authors introduce their initial experience with the use of minilaparotomy in the aortoiliac region. From November 2002 to April 2004, 29 procedures were performed for the abdominal aortic aneurysm repair or for aortoiliac occlusive disease. In 15 cases the abdominal aortic aneurysm was managed and in 14 cases the aortoiliac occlusive disease was managed.

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[Laparoscopic vascular reconstructions--initial experience].

Laparoscopic techniques, which have been found useful in the general surgical procedures, have influenced the vascular surgical procedures with a certain delay. The main reason for the delay were technical difficulties of the vascular anastomosis, which resulted in a reluctant acceptance of the laparoscopic procedures by vascular surgeons. However, with respect to clear benefits of the miniinvasive procedures, including reduction of the postoperative pain, faster recovery rates and reduction of the total treatment costs, the laparoscopic procedures are finally being applied in the vascular surgery as well. The authors introduce operative results and outcome of ten laparoscopic vascular procedures for aortoiliac occlusive disease, which were conducted from September 2003 to April 2004. In five cases, iliofemoral bypasses were conducted, fourtimes unilateral aortofemoral bypasses (AF) and once an aortobifemoral bypass (ABF). All the IF and AF reconstructions were conducted via laparoscopy and the ABF reconstruction was conducted as laparoscopy-assisted.

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[Percutaneous lumbar sympathectomy--presentation of a new trans-diskal approach].

The authors present the technique of chemical lumbar sympathectomy by an anatomically new medial transdiscal approach. On a group of 80 operations they analyze the indication criteria, complications and results of this method. They compare the percutaneous technique of severing of the sympathetic nerve with the classical surgical approach. In 41 patients where a modified transdiscal approach was used the authors did not encounter any serious complications. Using thin needles (minimum 23-G) they recommend this method as an alternative of the classical approach of Kappis.

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