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Biomedical subjects

H Kölbl

Publications and source records attributed to H Kölbl.

At least 19 recordsLinked to original sources
PubMed1992

[Drug dependence, smoking and fetal growth retardation].

Illicit drug abuse, as well as smoking, are known risk factors in the development of intrauterine growth retardation. In an attempt to clarify the influence of these two aetiological factors, a retrospective analysis was carried out. 35 drug- and nicotine-addicted pregnant women were compared to 104 smokers and 101 non-smoking controls with regard to foetal outcome. Relative risk estimates for intrauterine growth retardation of the drug and nicotine group were 3.14 (95% confidence limits 1.88-5.25; p = 0.0001) whereas the smoking group had 1.39 (95% confidence limits 0.96-2.02; p = 0.0482) compared to non-smoking controls. The foetal outcome was best in the latter group: children of drug-addicted mothers had a considerably higher morbidity and mortality rate. This study shows an almost threefold risk for intrauterine growth retardation in drug-addicts who smoke, compared to nicotine abuse alone.

Acid-Base Equilibrium↗
PubMed1992

[The value of the urethral depression quotient in diagnosis of female stress incontinence using the Brown-Wickham method].

Various parameters of the urethral pressure profile have been developed to improve diagnosis of genuine stress incontinence. By application of micro-tip transducers, a positive correlation between "depression ratio" and degree of incontinence as had been observed by Eberhard. The aim of this study was to examine Eberhard's observations by the use of Brown-Wickham's method. Significant differences in the parameters of the urethral pressure profile during stress, such as the urethral closure pressure, depression pressure, depression ratio, transmission ratio, and the area of continence, were found between continent and incontinent patients. Although pressure transmission and transmission ratio revealed significant differences, depression pressure and depression ratio were found to be similar in patients with mild and severe degree of incontinence. According to the results of this study, depression ratio does not reflect the degree of urinary loss, when open catheters are used.

Female↗
PubMed1992

[Surgical treatment of invasive malignancies of the vulva using CO2 laser].

In a retrospective study, we analysed 26 CO2-laser vulvectomies within the observation period between 1982 and 1990. Indications for vulvectomies were invasive malignancies of the vulva, FIGO stage I to III. 91.7% were squamous cell carcinomas. The mean age of patients was 69.3% (43 to 87) years. Five radical local excisions, one modified radical vulvectomy and in all other cases radical vulvectomy was performed. Laser surgery of the vulva was combined with bilateral lymphadenectomy or radiotherapy of inguinal lymph nodes. If necessary, a gluteal rotation flap was built to achieve closure of the wound without tension. No serious intra- or postoperative complications were observed, wound breakdown with per secundam healing as the most common complication occurred in 29.1%. Functional and cosmetic results were examined in a detailed follow-up at least 12 months postoperatively, showing promising results (56.3% good, 37.5% satisfactory, 6.3% unsatisfactory). The surgical procedure, perioperative management, recurrence rate (3 patients, 12.5%), as well as functional and cosmetic results, are presented and discussed in detail. The use of CO2-laser in surgical treatment of vulvar malignancies improves cosmetic and functional results. This is important, particularly with regard to the increasing number of young women with vulvar neoplasia.

Adult↗
PubMed1991

Immunohistochemical differentiation between ovarian granulosa cell tumors and ovarian carcinomas.

Differential diagnosis is a major problem in histopathology of ovarian tumors. Difficulties may arise if the tumor is a poorly differentiated carcinoma or a granulosa cell tumor of the sarcomatoid type. It was the aim of the present study to evaluate the usefulness of immunohistochemistry in differentiating between granulosa cell tumors of the ovary and ovarian carcinomas. We investigated 56 ovarian malignancies (13 granulosa cell tumors, 17 serous, 14 mucinous and 12 poorly differentiated carcinomas) and performed immunohistochemical detection of Vimentin, Keratin, CA125, CA19-9, CEA, S100 and Ber-EP4. Expression of Vimentin was highest and expression of Keratin was lowest in granulosa cell tumors in contrast to carcinomas. CA125 and CA19-9 were not expressed in granulosa cell tumors, whereas the detection rate in carcinomas (except for CA125 in mucinous carcinomas) was high. CEA, S100 and Ber-EP4 do not seem to be useful markers in differential diagnosis. A marker profile of Vimentin, Keratin, CA125 and CA19-9 allows a quite strict differentiation between poorly differentiated ovarian carcinomas and granulosa cell tumors of the ovary.

Adenocarcinoma, Mucinous↗
PubMed1991

[Morphologic and functional long-term results after Vecchietti operation for the formation of a neovagina].

For creation of a neovagina in patients with congenital vaginal agenesis, a variety of operative procedures are recommended. Basically, two different procedures are described: (1) Application of pressure or traction to the perineum and (2) plastic-surgical operations. Since 1981, the 2nd Department of Obstetrics and Gynecology, Vienna, utilises the method described by Vecchietti. 9 Patients with congenital absence of the vagina and one with vaginal occlusion after radiotherapy underwent Vecchietti's procedure. Patients were seen after a follow-up period of at least 5 years. We evaluated morphological and functional long-term results using a detailed questionnaire as well as clinical investigations including cytological smears, screening for vaginal infections and determination of sexual hormone levels in peripheral blood. To evaluate distensibility and greatest cross-sectional diameter of the neovagina, a vaginal cast (vinyl-polysiloxan) was obtained. All patients treated for congenital malformations showed good to excellent functional results.

Adult↗
PubMed1991

[The role of intestinal resection in primary surgery of ovarian carcinoma].

In most ovarian cancer cases complete resection of the tumour masses is not possible, and tumour reduction at the primary operation has been shown to improve survival. In some cases optimal tumour reduction is only possible by resecting intestinal structures, and it remains to be shown whether aggressive approaches are justified. The impact of intestinal resection, among other prognostic factors, was analysed in 104 patients undergoing primary operation for ovarian cancer. Tumour spread to bowel, exceeding 2 cm in diameter occurred in 39% of the cases. Debulking to a maximal tumour diameter less than 2 cm was achieved in 68 (65%) cases. Successful debulking was achieved by performing large (n = 20) and small bowel (n = 4) in 22 patients with massive bowel involvement. Two patients died during the hospital stay, one after bowel resection. Four independent prognostic variables emerged from Cox's multiple proportional hazards regression: ascites (p = 0.001), massive bowel involvement (p = 0.007), residual tumour size (p = 0.002), and intestinal resection (p = 0.11). The authors contend that intestinal resection to achieve optimal tumour debulking at the primary operation will improve the survival of ovarian cancer patients.

Adolescent↗
PubMed1990

[Introital sonography--a new method in the diagnosis of bladder function].

In this study we introduce a non-invasive sonographic method called "introital sonography" which enables concomitant urodynamic measurements for evaluating the bladder function. During cystometry, urethral pressure profilometry and uroflowmetry, 20 patients with the symptom "loss of urine" and 10 healthy volunteers showed typical sonographic and urodynamic patterns, especially with regard to stress incontinence and urge incontinence. In contrast to video-urethrocystography, the lack of radiation exposure is advantageous. In contrast to perineal sonography, introital sonography allows simultaneous urodynamic measurements with applied catheters avoiding topographic and tonometric artifacts.

Female↗
PubMed1990

Relationship between plasma levels of components of the fibrinolytic system and acute-phase reactants in patients with uterine malignancies.

Plasma samples from 17 patients with endometrial cancer and from 52 patients with cervical carcinoma were determined with respect to their levels of components of the fibrinolytic system (tissue-type plasminogen activator antigen, urokinase-type plasminogen activator antigen, plasminogen activator inhibitor activity) and related to the observed alterations of three acute-phase reactants (C-reactive protein, coeruloplasmin, alpha-1-antitrypsin). As shown previously, uterine malignancies, especially at later stages, exhibited significant increases in plasma levels of urokinase-type plasminogen activator antigen as compared to an age-matched control group. In contrast, tissue-type plasminogen activator antigen and plasminogen activator inhibitor activity remained unchanged. Determination of the acute-phase reactants revealed significant changes in the case of C-reactive protein and coeruloplasmin in later tumour stages. However, the increase in urokinase-type plasminogen activator antigen did not correlate with the increase of either C-reactive protein or coeruloplasmin plasma level. These data indicate that the increase in plasma urokinase-type plasminogen activator antigen in patients with uterine malignancies does not follow the pattern of common acute-phase reactants, like C-reactive protein or coeruloplasmin.

Acute-Phase Proteins↗
PubMed1989

[Carcinoma with low malignant potential (borderline tumor) of the ovary: immunomorphology and clinical aspects].

Four of 28 patients with borderline tumors of the ovary died of intercurrent disease. Twenty-four are alive without clinical evidence of disease, despite the fact that six of them were stage III; joined with the invasive carcinomas they would distort the survival rates. The development of monoclonal antibodies specific to borderline tumors could improve the value of immunohistochemistry in the diagnosis of borderline tumors. Our results show that the rates of expression of CA 125, CA 19-9, and CEA indicate that borderline tumors are an independent group between benign and malignant ovarian tumors.

Antigens, Tumor-Associated, Carbohydrate↗