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Biomedical subjects

L Safarík

Publications and source records attributed to L Safarík.

At least 19 recordsLinked to original sources
PubMed2006

[Inovative techniques in partial laparoscopic resection of the kidney for adenocarcinoma].

Authors present the first case of laparoscopic partial resection of the kidney for RCC using modern technique of tissue sealing with FloSeal, which was used in this indication for the first time in the Czech Republic. The other most useful innovative point was the usage of tail-clipped sutures from resorbable material "Lahodny", which are suitable for suturing in renal parenchyma. Despite the relatively long time of warm ischemia, the function of rest of the kidney is more than satislying.

Adenocarcinoma↗
PubMed2005

[Reconstruction surgical procedures for iatrogenic injuries to the ureter. Examples of uncommon, however successful approaches to their management].

The authors present several less usual reconstructions of ureters after the primary iatrogenic lesions. The appropriate ureteric capacity to drain the urine after previous injury is quite demanding and hence before the definitive decision is made the wholesome health status of the patient is to be considered and all possible solutions should be weighted. The efficient primary urinary diversion above the lesion is unavoidable. The genuine reconstruction could be deferred by several weeks or months in the view that in some cases the least invasive (endourologic) methods can completely avoid the need of open surgery in difficult adhesions after previous major surgery.

Abdomen↗
PubMed2005

[Role of laparoscopy in uro-oncology].

The article reviews problems of laparoscopic surgery in uro-oncology. Examples supporting and opposing the laparoscopic alternative are given. Original objections against the use of the method for the treatment of malignancies are discussed from the retrospective position. According to the predominant views it looks that laparoscopic treatment by a highly educated team with good technical background, respecting oncologic and functional aspects, does not have worse short-term and long-lasting results. The improving diagnostics and possibility to identify malignancies in early stage of development will enable wider use of the laparoscopic surgery.

Humans↗
PubMed2004

[A case of a patient with solitary prostate metastasis of the colorectal carcinoma three years after abdominoperineal amputation of the rectum].

AIM: The aim of this study is to present a case-review of a patient with an extremely rare finding of a solitary metastasis of the colorectal carcinoma in his prostate. METHODOLOGY: A Case-Review. RESULTS: The study describes a case of a 42-year-old patient who underwent abdominoperineal amputation for the rectal carcinoma pT3 N1 M0 with complementary actinotherapy and chemotherapy. Three years after his rectum amputation, a CT scan disclosed a hypodense focus in his prostate of unknown origin. Elevation of the CEA was found upon laboratory examination, other tumor markers including the PSA were not abnormal. The positron emission tomography (PET) did not disclose other distant foci. The patient was administered 4 courses of chemotherapy with, basically, no signs of regression in the prostate foci. Biopsy from the suspicious focus was conducted transperitoneally, followed by its histological examination which confirmed cribriform adenocarcinoma. Our team decided on salvage cystoprostatectomy, securing urine derivation by the ilium conduit. 6 months later, the CT examination showed a massive local relapse and two metastatic foci in the liver, further oncological therapy was not indicated. The patient died 7 moths after the radical cystoprostatectomy. CONCLUSION: This case-review points out a possibility of metastatic prostate affections connected to the colorectal carcinoma disorder, as well as its treatment procedures.

Adenocarcinoma↗
PubMed2004

[Oncocytic adrenocortical neoplasms].

Oncocytic neoplasms of the adrenal gland are rare, as described in literature. Only 27 cases have been reported up to now in world literature. Here we describe our experience. In this report we discuss the clinicopathologic and immunohistochemical findings of three oncocytic tumors of the adrenal cortex. Two tumors were found during examination of the patients for other reasons. These tumors were hormonally inactive. One tumor manifested by the virilization of the patient. Immunohistochemical examination demonstrated in all tumors focal positivity with antibodies to neuron-specific enolase and synaptophysin and mostly focally weak positivity for cytokeratins. Very low mitotic activity was found in two tumors. Criteria for evaluation of biological character of this type of tumors are not established.

Adenoma, Oxyphilic↗
PubMed2003

[Benefits and risks of urologic laparoscopic surgery in adult patients].

The paper describes the advantages and disadvantages of the laparoscopic operations, the number of which steadily rises in urology. The laparoscopic surgery is considered to be a benefit regarding the short postoperative hospital stay, painless postoperative course, and virtually non-existing postoperative paralytic ileus. As disadvantage are deemed the long learning curve for the operating personal, and high economical costs, which could be cut down only if short off-work period in productive population is included. In the paper, the pathophysiological guidelines are outlined and emphasized during the laparoscopic operation, which the surgical and anesthesiological teams have to have in mind. On the own cohort of patients, the numbers and types of operations are described, which have been done at our department.

Adult↗
PubMed2002

[Laparoscopic transperitoneal adrenalectomy in hormonally-active adrenal tumors].

Laparoscopic adrenalectomy is considered the "gold standard" in adrenal surgery for benign functioning (and non-functioning) tumors. Laparoscopy meets criteria of miniinvasive surgery with minimal postoperative pain, short hospital stay and an outstanding cosmetic effect, the radicality of the procedure, open surgery and laparoscopy are equally effective. In cooperation with endocrinological department focused on detection of functioning adrenal tumors, the diagnostic and therapeutic procedure seems to be very efficient, so that the primary goal of rapid cure could be achieved. Patients after laparoscopic adrenalectomy mostly do not need chronic antihypertensive medication and only those after bilateral adrenalectomy (Cushing's disease) require life-long low dose hydrocortisone therapy. In pheochromocytomas, total excision of the tumor is considered to be a life-saving procedure, although up to 20% may recur as hereditary or as a part of von Hippel-Lindau's disease.

Adrenal Cortex Hormones↗
PubMed2001

[Benign hyperplasia of the prostate--a known and unknown disease].

Authors give an overview of the current approaches to diagnostics and therapy of the benign hyperplasia of the prostate (BPH). The up-to-date diagnostic possibilities are cited in the relation to our health care system and the procedures of conservative and surgical treatment of BPH are outlined. In epidemiology and diagnostics of BPH, one has always to consider the possibility of prostate cancer (PC), which may have similar symptoms, particularly in initial stages. If prostate cancer were found, it could be successfully cured at this stage only. Drug therapy or BPH enables in most cases at least temporarily to resign on surgical treatment. Patients treated with alphablockers regularly speak about an improved quality of life regarding previous micturition troubles. To diagnose BPH, the complex urological examination is needed, including some laboratory tests (prostate specific antigen PSA, uroflowmetry UFM). The article is supplemented with a graph of latest available figures referring to the number of TURPs performed annually and a table showing the list of methods for the minimal invasive surgical treatment of BPH.

Diagnosis, Differential↗
PubMed2001

[Vesico-colonic fistulae in patients with chronic urinary tract infections].

The authors present their experience with diagnosis and treatment of colovesical fistula, which had been diagnosed due to chronic recurrent urinary tract infection. The underlying cause of the fistula was previously unrecognized diverticulosis with diverticulitis (3 out of 4 cases). The fistula was diagnosed primarily by a urologist, who performed cystoscopy, which proved to be the most contributing useful examination of all. On the other hand, coloscopy did not reveal the true diagnosis any time and its value is doubtful since insufflation of the inflamed bowel may be followed by intestinal rupture into the peritoneal cavity. Treatment of the fistulae was always surgical, during resection of the involved bowel and resection of the neighboring bladder was accomplished. In all cases one-staged procedure was done with restoration of bowel continuity and suturing of the bladder. Three patients were cured, one died on the 5th day due to complicated ischaemic heart disease.

Chronic Disease↗
PubMed2000

Analysis of relations between serum levels of epitestosterone, estradiol, testosterone, IGF-1 and prostatic specific antigen in men with benign prostatic hyperplasia and carcinoma of the prostate.

Epitestosterone competes with testosterone for androgen receptors and inhibits several enzymes of steroidogenesis. Insulin-like growth factors (IGFs) stimulate the growth of prostate cells and directly activate androgen receptors in prostatic tumor cell lines. The prostate-specific antigen (PSA) decreases the affinity of IGF-binding protein-3. The samples were collected from 71 patients suffering from various diseases of the prostate (56 patients without prostate cancer but with benign prostatic hyperplasia and 15 patients with prostate cancer). Correlations between age and IGF-1 (r = -0.281, p<0.05), age and serum epitestosterone (r = -0.261, p<0.05), estradiol and testosterone (r = 0.367, p<0.01), and between estradiol and epitestosterone (r = -0.414, p<0.001) were found. After age adjustment, IGF-I correlated with epitestosterone (r = -0.277, p<0.05). The age correlated positively with PSA (r = 0.286, p<0.05) and negatively with IGF-1 (r = -0.377, p<0.01) in partial correlations. PSA levels were higher in patients with prostate cancer (p<0.00001). Epitestosterone, which is negatively correlating with estradiol and IGF-1, may modulate the development of prostate diseases.

Age Factors↗
PubMed1998

[Markers of prostatic carcinoma].

Author gives the survey of markers at prostate carcinoma, that has been known so far, their origin and the use in experiment and clinical praxis. He discusses their sensitivity and specificity and shows the perspective of new markers discovered and used in the praxis on basis of molecular genetics.

Biomarkers, Tumor↗
PubMed1998

[Treatment of localized carcinoma of the prostate].

Review of the treatment of localized prostate cancer. The major attention is devoted to the surgical treatment. The radical retropubic prostatectomy is used most frequently. Problems of the indication, anatomical foundations and the technique of the surgery are discussed. The radical perineal prostatectomy is used less frequently. The radiation therapy is an alternative to the surgical treatment. The radiation therapy is recommended by urologists in patients, for whom is this treatment considered as more advantageous.

Combined Modality Therapy↗
PubMed1997

[Profile of radical retropubic prostatectomy during a 5-year period].

The authors evaluated 165 radical retropubic prostatectomies, which have been performed at the Department of Urology of the 1st School of Medicine, the Charles University and the General Faculty Hospital in Prague, from January 1992 until half of April 1997. After more precise indication criteria have been implemented, even more per cent of patients are operated in clinical T1c stage (only in this year it was up to 45%). Out of all, in 56 patients PSA exceeded 20 ng/ml, in 46 patients, there was proved seminal vesicles invasion and in 29 patients, there have been disclosed regional lymph node involvement. The postoperative decline of PSA below the 4.0 ng/ml within three months was recorded in 80% of patients with seminal vesicles involvement, but only in 69.2% of patients with nodal invasion. It may indicate the worse prognosis of latter patients. Nowadays we perform the routine peroperative staging lymphadenectomy provided PSA exceeds 10 ng/ml preoperatively and in case of presence of cancerous cells in regional lymph nodes, we do not proceed in the operation and the patient is indicated to another therapeutical modality.

Humans↗
PubMed1995

[Results of surgical treatment of benign prostatic hyperplasia].

The authors have evaluated the results of the BPH surgery in the computer study on 669 patients (out of them 181 after TVPE and 488 after TURP) operated on at the department of Urology, FN Motol during 1988-1992. The average age of the patients was 70.6 years. The occult cancer was found in 6.7%. The incidence of bladder stones rose with the age (in the 8th decade at the quarter of patients). The average weight of the resected tissue was 63.7 gms in TVPE and 16.7 gms in TURP and it rose with the age. The average surgery time 47.1 mins at TVPE and 50.8 mins at TURP did not change statistically. The average demand on the blood transfusion was higher at TVPE (440.1 mls) than at TURP (95.5 mls) and rose with the resected tissue. The death rate was 0.5% among all the patients included (TVPE 0, TURP 0.6%). All three patients after TURP died from myocardial infarction. In this thesis is evaluated the number of early and late complications (incl. the transient incontinence), which have occurred in five consecutive years. The total morbidity was 27.2% and the further surgery was necessary in 2.8% after TVPE and 5.7% after TURP respectively. The pre-surgery performance status was aggravated in 79.4% of patients. In spinal anesthesia was operated on in 84.2% (subarachnoidal 56.5% and epidural 27.7%) and in general anesthesia in only 15.8% of patients. The pre-surgery urinary infection was found in 38.7% and after operation in 29.3%. Out of the latter, 30% were nosocomials. This was in accordance with the higher rate of late complications after both types of operations.

Aged↗
PubMed1995

[Sexual consequences of benign prostatic hyperplasia].

In this thesis are evaluated the sexual questionnaires retrieved from 412 patients (TVPE 101, TURP 272, TUIP + PRP 25, TUIP 14), who had been operated on during 1988-1993 for the BPH at the department of Urology, FN Motol. Before the surgery, 69.7% of patients were sexually active yet (28.6% regularly, 41% irregularly). Without sexual intercourse were 29.9% in the time of surgery and 2 patients (0.5% did not respond the questions. The sexual activity was rapidly declining in the 7th decade, in the 8th decade still 41% of the patient argued sexual activity prior to surgery. The libido remained unchanged in 62.9%, worsened in 24.3% and improved in 10.7%. The changes in libido was neither parallel to the aging nor the type of prostatic surgery. After the surgery, the intercourse was admitted only by 49.3% of patients. Without any intercourse remained 50%. The difference compared to the pre-surgery responds is statistically proved (p < 0.01). The erectile dysfunction seemed to be the main cause of sexual intercourse decline. The impotence margin after TVPE or TURP is not statistically significant. On the other hand, the reawakening of the sexual activity at the patients, who had already not experienced intercourse preoperatively, was recorded only in 6 cases (1.5%). The unchanged ejaculation after surgery argued 13.1% of patients, the weaker ejaculation was recorded in 21.6% of patients and ejaculation was completely absent in 62.4% (retrograde ejaculation). Between TVPE and TURP was no significant margin found. The ejaculation damage after minimal prostatic surgery (TUIP + PRP and TUIP alone) is significantly minor (p < 0.01) than after the standard prostatectomy (TVPE and TURP).

Aged↗
PubMed1994

[Personal experience with uretero-renoscopy].

The authors submit evaluation of 188 patients operated on during five years (1989-1993). Using the ureterorenoscopic technique (URS), 207 operations have been performed. The average age in the group of patients was 56.1 years. In general anesthesia 151 operations were completed, in spinal anesthesia 54, in neuroleptanalgesia 1 and without any anesthesia 1. The postoperative ureteric intubation was accomplished 128 times (61.8%). The moderate dilatation of the hollow system of the kidney was proved ultrasonographically in only 7 cases. The average postoperative hospitalization reached 5.8 days. Out of 207 operations, we have reached successful result 177 times (85.5%) and 30 times (14.5%) we were not able to accomplish the operation only by means of the URS. 184 operations were performed because of urolithiasis (88.9%) and 23 (11.1%) for other reasons. Out of 184 URS for urolithiasis, 156 (84.8%) were successful and there was no difference found between pelvic (85.4%) and lumbal (83.6%) localization of urolithiasis in the view of success rate. The authors summarize the causes of mishaps and following solutions. The biochemical analyses of 153 concrements are added.

Adolescent↗
PubMed1994

[Generalized melanoblastoma of the lower urinary tract].

The primary metastatic melanoblastoma presented with macroscopic haematuria as a first sign is described. So far it is our first experience with such a type of tumor in lower urinary tract in ageing man. The references in literature are scarce on this subject.

Aged↗