Laparoscopic Supracervical Hysterectomy and Laparoscopic Total Hysterectomy in Patients with Very Large Uteri: a Retrospective Single-Center Experience at a Major University Hospital.

Objective The main objectives of our study were to demonstrate that laparoscopic supracervical hysterectomy (LSH) or total laparoscopic hysterectomy (TLH) can be performed safely even in patients with a uterine weight ≥ 500 g, to analyze the rate of conversions to laparotomy due to uterine size and to estimate the incidence and type of intraoperative and long-term postoperative complications. Study Design Retrospective open, single-center, comparative interventional study of LSH and TLH. Results The present study comprised a total of 138 patients that underwent laparoscopic hysterectomy with a uterine weight ≥ 500 g; 109 patients (79.0 %) underwent LSH and 29 patients (21.0 %) underwent TLH. Median uterine weight across the entire cohort was 602 g, with the largest uterus weighing 1860 g. A total of 24 cases (17.4 %) among the 138 hysterectomies were converted to a laparotomy due to lack of adequate intraabdominal space and size of the uterus. Mean uterine weight of the patients in the LSH group that underwent conversion was 883 g (SD 380 g, n = 13) and 757 g (SD 371 g, n = 11) in the TLH group. The rate of conversion to laparotomy due to the uterine weight was significantly lower in the LSH group (11.9 %) compared to the TLH group (37.9 %) (p = 0.002). Intraoperative complications requiring laparotomy for other reasons but uterine size occurred in 6 patients of the study cohort (6/138; 4.3 %). Long-term postoperative complications occurred in 2 patients (2/138, 1.4 %), both patients from LSH group had to be re-operated on due to adhesions. Conclusions Our study adds further insight in the limited data set of laparoscopic hysterectomy for increased uterine weight and shows that LSH and TLH are safe and feasible even in patients with very large uteri (≥ 500 g).

Sexual Function, Contraception, Relationship, and Lifestyle in Female Medical Students.

BACKGROUND: We undertook to study possible determinants of female sexual dysfunction (FSD) in a large cohort of female medical students from German-speaking countries. METHODS: We conducted an online questionnaire-based anonymous survey in a cohort of >2600 female medical students enrolled at German-speaking universities. The questionnaire comprised the Female Sexual Function Index (FSFI) plus additional questions regarding contraception, sexual activity, age, height, weight, lifestyle, activity at work, sexuality and emotional interaction with a steady partner, pregnancy history and plans, health problems, and self-acceptance. Data analysis employed descriptive statistics, univariate and multivariate analyses, and standard nonparametric tests. RESULTS: Of the 2612 respondents aged ≤30 years included in the analysis (mean age [standard deviation], 23.5 [2.5] years), 38.7% of the overall cohort and 33.5% of the sexually active subcohort (91.8% of all students) were at risk for FSD (FSFI score <26.55). Multivariate analysis revealed the following significant factors to be associated with the FSFI: alcohol consumption, level of fitness, use of contraception, steady relationship, and self-acceptance (overall cohort and sexually active subcohort); smoking (overall cohort only); and body mass index and activity at work (sexually active subcohort only). CONCLUSIONS: Almost 40% of German-speaking female medical students are at risk for FSD. Contraception, smoking, alcohol, steady relationship, physical fitness, and self-acceptance are significantly associated with the FSFI total score. Being in a steady relationship, better physical fitness, higher activity at work, and subjectively positive self-acceptance, in particular, are associated with higher FSFI total scores, that is, with less risk for sexual dysfunction.

Hospital versus individual surgeon's performance in laparoscopic hysterectomy.

PURPOSE: To compare hospital versus individual surgeon's perioperative outcomes for laparoscopic hysterectomy (LH), and to assess the relationship between surgeon experience and perioperative outcomes. METHODS: A retrospective analysis of all prospective collected LHs performed from 2003 to 2010 at one medical center was performed. Perioperative outcomes (operative time, blood loss, complication rate) were assessed on both a hospital level and surgeon level using Cumulative Observed minus Expected performance graphs. RESULTS: A total of 1618 LHs were performed, 16 % total laparoscopic hysterectomies and 84 % laparoscopic supracervical hysterectomies. Overall outcomes included mean (SD±) blood loss 108.9 ± 69.2 mL, mean operative time 95.4 ± 39.7 min and a complication occurred in 76 (4.7 %) of cases. Suboptimal perioperative outcomes of an individual surgeon were not always detected on a hospital level. However, collective suboptimal outcomes were faster detected on a hospital level compared to individual surgeon's level. Evidence of a learning curve is seen; for the first 100 procedures, a decrease in operative time is observed as individual surgeon experience increases. Similarly, the risk of conversion decreases up to the first 50 procedures. CONCLUSION: An individual outlier (i.e., surgeon with consistently suboptimal performance) will not always be detected when monitoring outcome measures only on a hospital level. However, monitoring outcome measures on a hospital level will detect suboptimal performance earlier compared to monitoring only on an individual surgeon's level. To detect performance outliers timely, insight into an individual surgeon's outcome and skills is recommended. Furthermore, an experienced surgeon is no guarantee for acceptable surgical outcomes.

Sexual Function Is Correlated With Body Image and Partnership Quality in Female University Students.

INTRODUCTION: According to the World Health Organization definition, sexual health is more than mere physical sexual function; it also encompasses emotional, mental, and social well-being in relation to sexuality and is not merely the absence of dysfunction or disease. In line with this definition, various studies have reported that female sexual function is associated with partnership quality, body image, and body self-acceptance. AIM: To investigate whether female sexual function is influenced by (i) body self-acceptance and (ii) partnership quality, as important factors in psychosocial well-being, and (iii) whether the effects of body self-acceptance are moderated by partnership quality. METHODS: In total, 2,685 female medical students no older than 35 years from Germany, Austria, and Switzerland completed an anonymous online questionnaire comprising the Female Sexual Function Index (FSFI) and the Self-Acceptance of the Body Scale. Respondents were asked to state whether they had been in a steady partnership in the preceding 6 months. When present, the quality of the partnership status was rated (enamoredness, love, friendship, or conflicted). To determine correlations, group differences, and moderating effects among body self-acceptance, partnership quality, and sexual function, the data were analyzed using Spearman correlations, Kruskal-Wallis tests, and analyses of variance. MAIN OUTCOME MEASURES: Female sexual function (FSFI total score). RESULTS: (i) In sexually active women, higher FSFI scores were significantly associated with greater body self-acceptance and a steady partnership during the preceding 6 months. (ii) Total FSFI scores were highest in women who described their partnership as enamored (29.45) or loving (28.55). Lower scores were observed in single women (26.71) and in women who described their partnerships as friendship (25.76) or as emotionally conflicted (23.41). (iii) Total FSFI score was affected by an interaction between body self-acceptance and partnership quality. Body self- acceptance was positively associated with FSFI total scores, particularly in single women and women in emotionally conflicted partnerships. CONCLUSION: Our findings suggest that in young women, body self-acceptance and partnership quality are positively associated with better sexual function, and that high body self-acceptance might buffer the negative impact on sexual function of partnership quality. The present data suggest that psychological interventions to improve the body image of younger women can positively affect sexual function and thereby improve sexual health.

Pregnancy eHealth and mHealth: user proportions and characteristics of pregnant women using Web-based information sources-a cross-sectional study.

PURPOSE: To analyze the current proportions and characteristics of women using Internet (eHealth) and smartphone (mHealth) based sources of information during pregnancy and to investigate the influence, this information-seeking behavior has on decision-making. METHODS: A cross-sectional study was conducted at two major German university hospitals. Questionnaires covering socio-demographic data, medical data and details of Internet, and smartphone application use were administered to 220 pregnant women. Data analysis utilized descriptive statistics and multiple regression analysis. RESULTS: 50.7 % of pregnant women were online information seekers. 22.4 % used an mHealth pregnancy application. Women using eHealth information showed no specific profile, while women using mHealth applications proved to be younger, were more likely to be in their first pregnancy, felt less healthy, and were more likely to be influenced by the retrieved information. Stepwise backward regression analysis explained 25.8 % of the variance of mHealth use. 80.5 % of cases were classified correctly by the identified predictors. All types of Web-based information correlated significantly with decision-making during pregnancy. CONCLUSIONS: Pregnant women frequently use the Internet and smartphone applications as a source of information. While Web usage was a common phenomenon, this study revealed specific characteristics of mHealth users during pregnancy. Improved, medically accurate smartphone applications might provide a way to specifically target the mHealth user group. As user influenceability was of major relevance to all types of information, all medical content should be carefully reviewed by a multidisciplinary board of medical specialists.

Predictors of impaired breastfeeding initiation and maintenance in a diverse sample: what is important?

PURPOSE: This study aimed to investigate socio-demographic, medical and psychological factors that have an impact on breastfeeding. METHODS: Questionnaires were administered to 330 women prenatally (TI third trimester) and postpartum (TII 3-4 days, TIII 4 months). Medical data were collected from the hospital records. Self-reported data on initiation and maintenance of breastfeeding was collected simultaneously. Primary endpoint was breastfeeding initiation and maintenance. Data analyses were performed using Spearman's ρ correlations between breastfeeding and other study variables and generalized multiple ordinal logistic regression analysis. RESULTS: Neonatal admission to the NICU, high BMI, cesarean section, difficulties with breastfeeding initiation and high maternal state anxiety were the strongest predictors of impaired breastfeeding initiation, explaining together 50 % of variance. After 4 months, the strongest predictors of impaired maintenance of breastfeeding were maternal smoking, a high BMI and a history of postpartum anxiety disorder, explaining 30 % of variance. CONCLUSIONS: Successful initiation and maintenance of breast feeding is a multifactorial process. Our results underline the need of interdisciplinary approaches to optimise breastfeeding outcomes by demonstrating the equality of medical and psychological variables. Whereas practices on maternity wards are crucial for optimal initiation, continuous lifestyle modifying and supporting approaches are essential for breastfeeding maintenance. Healthcare providers can also significantly influence breastfeeding initiation and maintenance by counselling on the importance of maternal BMI.

Are hormonal components of oral contraceptives associated with impaired female sexual function? A questionnaire-based online survey of medical students in Germany, Austria, and Switzerland.

PURPOSE: To investigate in a large cohort of young university women whether different progestins and different ethinyl estradiol (EE) dosages in oral hormonal contraceptives (OHCs) adversely affect sexual function. METHODS: Female medical students from German, Austrian, and Swiss universities (14/1/1) completed an anonymous online questionnaire comprising the 19 Female Sexual Function Index (FSFI) questions and 17 additional questions concerning demographics, lifestyle, sexual activity, and contraceptive use. OHCs were categorized by EE dose (≤20, <20 to ≤30, and >30 µg) and partially androgenic or antiandrogenic progestins. FSFI scores were analyzed by contraceptive method using descriptive statistics and standard nonparametric tests. RESULTS: We analyzed 2612 questionnaires submitted by respondents aged ≤30 years [mean age (SD) 23.5 (2.5) years]. Of 2126 contraceptive users, 1535 (72.2 %) used OHCs. Median FSFI total scores (ranges) were 28.2 (2.0-36.0) for all respondents. Median FSFI was significantly lower in non-users (24.4) versus users (28.7) of contraception (p < 0.001). Stratified analysis showed that 279/486 (57.4 %) respondents using no contraceptives, 563/1535 (36.7 %) using OHCs, 71/227 (31.3 %) using non-oral hormonal contraceptives, and 96/351 (27.4 %) using non-hormonal contraceptives were at risk for female sexual dysfunction (FSFI total score <26.55). FSFI scores for the three EE dosage categories and progestin components did not differ significantly. CONCLUSIONS: For OHCs, the FSFI score was lower than for other contraceptives but there was no significant association with EE dose or progestins, possibly due to small sample sizes. Further research needs to clarify the role of OHCs in female sexual function.

Laparoscopically assisted neovaginoplasty in vaginal agenesis: a long-term outcome study in 240 patients.

STUDY OBJECTIVE: To assess the long-term outcome of an optimized minimally invasive neovaginoplasty technique in vaginal agenesis. DESIGN: Combined retrospective and prospective study. SETTING: University hospital. PARTICIPANTS: 240 patients with congenital vaginal agenesis. INTERVENTIONS: Patients with an indication for neovagina creation underwent laparoscopically assisted neovaginoplasty involving vaginoabdominal blunt perforation and intracorporeal traction using tension threads and an abdominally positioned extracorporeal traction device. MAIN OUTCOME MEASURES: Long-term anatomic success, functional success compared with similar-aged controls, long-term complications, and incidence of human papilloma virus (HPV) infections. RESULTS: During median follow-up for 16 (range 11-141) months, mean functional neovaginal length remained stable at 9.5 cm in all patients, including those who had no sexual intercourse and had stopped wearing the vaginal dummy. Median dummy wearing time was 8.6 months. Time to epithelialization depended on the time of onset and frequency of sexual intercourse. At long-term follow-up, median total Female Sexual Function Index score was 30.0, comparable with similar-aged controls. No common long-term complications occurred. Four patients required cauterization of granulation tissue. 7/240 (2.9%) patients were HPV-positive with low- to high-grade squamous intraepithelial lesions, 3 patients reverting to HPV-negative status at long-term follow-up. CONCLUSIONS: Our technique creates a neovagina of adequate size and secretory capacity for normal coitus, requiring no prolonged dilation postoperatively, even in the absence of sexual intercourse. The procedure is fast, effective and minimally traumatic, has a very low long-term complication rate and provides very satisfactory long-term functional results.

Bipolar vessel sealing: instrument contamination and wear have little effect on seal quality and success in a porcine in vitro model.

PURPOSE: The aim of this study is to systematically investigate under standardized experimental conditions the effects of instrument contamination and wear on the quality of bipolar vessel sealing (BVS) achieved using a reusable instrument. METHODS: The study was designed as a prospective, randomized, and controlled in vitro study and conducted in an academic research environment. Reusable bipolar coagulation forceps (BiClamp® 200 C, ERBE Elektromedizin) were used to apply sealing pressures of 300-1,100 mN/mm(2) to 239 renal arteries from commercially slaughtered female pigs (Swabian-Hall Swine). Forceps jaws were coated with porcine blood, blood and collagen, or blood, collagen, and fat to simulate instrument contamination with biological material during surgery. Clinical wear was mimicked by sandpaper abrasion. The main outcome measures were seal success (resistance to 250 mmHg intraluminal pressure for 2 min) and seal stability (burst pressure). RESULTS: Sealing pressure had a significant impact, with 800 mN/mm(2) producing the best sealing results. Seal success increased with total energy applied to the tissue, a higher maximum temperature, and longer coagulation as indicated by desiccation time. Experimental contamination had no significant impact on seal success and only a limited effect on seal stability. Similarly, abrasive wear also had no significant effect on either seal quality or seal strength. CONCLUSIONS: The impact of bipolar forceps contamination and wear on seal success and quality was negligible in our in vitro model. To achieve high-quality seals, it is essential to use adequate sealing pressures. Our findings could have direct implications for the design and clinical handling of BVS instruments.

Patient-reported quality-of-life and sexual-function outcomes after laparoscopic supracervical hysterectomy (LSH) versus total laparoscopic hysterectomy (TLH): a prospective, questionnaire-based follow-up study in 915 patients.

PURPOSE: To compare patient-reported quality-of-life and sexual function outcomes in women after laparoscopic supracervical hysterectomy (LSH) or total laparoscopic hysterectomy (TLH) for benign uterine disease. METHODS: Out of a cohort of 1,952 patients from a previous implementation study of LSH and TLH, 1,886 patients who had not undergone intraoperative conversion to laparotomy or were ineligible for other reasons were invited by mail to participate in this prospective, questionnaire-based follow-up study. RESULTS: Of the 915/1,952 (48.5 %) survey respondents included in the analysis, 788 (86.1 %) and 127 (13.9 %) had undergone LSH or TLH, respectively. Women undergoing LSH reported significantly lower pain levels (p = 0.037) and faster partial (p = 0.015) and complete (p < 0.001) resumption of normal daily activities compared to those undergoing TLH. As regards sexual function, women undergoing LSH resumed sexual activity significantly sooner (p = 0.018), rated sexual desire as higher (p = 0.023), and reported more frequently that their sexual life had improved postoperatively (p = 0.008) than did women undergoing TLH. CONCLUSIONS: Women undergoing LSH for benign uterine disease may have better outcomes regarding certain quality-of-life and sexual function parameters than women undergoing TLH for benign uterine disease.

Intraabdominal adhesion formation is associated with differential mRNA expression of metabolic genes PDHb and SDHa.

PURPOSE: Intraabdominal adhesions represent a major cause of postoperative morbidity potentially causing pain, small bowl obstruction and infertility. The process of adhesion formation might be regarded as an ischemic disease. Under hypoxic conditions, metabolic enzymes are regulated via hypoxic responsive elements by the hypoxia-inducible factor 1 (HIF-1). We therefore investigated the gene expression of HIF-1 and two pivotal metabolic genes, pyruvate-dehydrogenaseß (PDHb) and succinate-dehydrogenase-complex-subunit-A (SDHa) in a validated ischemia model of adhesion formation. METHODS: Peritoneal adhesions were created using an ischemic button model in female Wistar rats. Expression levels of HIF-1α/ß, PDHb and SDHa in adhesiogenic versus native peritoneum were analyzed using quantitative PCR on the third post-operative day. RESULTS: Gene expression of HIF-1α was up-regulated by 10 % (p = 0.003), PDHb was up-regulated by 23 % (p = 0.0004) and SDHa (p = 0.0005) was up-regulated by 24 % in the adhesiogenic peritoneum compared to native peritoneum. The expression level of HIF-1ß was not significantly influenced by adhesion formation. CONCLUSION: The increased expression level of HIF-1α in the peritoneal tissue of ischemic buttons associated with postsurgical adhesions supports the major role for hypoxia in influencing peritoneal expression patterns of genes involved in the process of adhesion formation. As pivotal metabolic genes are upregulated, this seems to be an anabolic process associated with increased cellular metabolism.

Differential mRNA expression of TACR1 after ischemic peritoneal trauma: a pilot animal study.

PURPOSE: Experimental trial in an in vivo animal model in the laboratory facilities of a university department of obstetrics and gynecology and a microarray facility using seventeen female Wistar rats to investigate the regional expression level of TACR1 at specific locations in the peritoneum in a rodent animal model of post-operative adhesions. METHODS: Peritoneal adhesions were induced by the placement of three unilateral ischemic lesions. A time course experiment was performed to identify when adhesions form in this model to determine the optimal time for tissue harvesting. To this effect, second look analysis for adhesion scoring occurred after day 1, 3 and 5. Eighteen tissue samples from the adhesiogenic lesions and the contralateral non-adhesiogenic peritoneum were harvested from n = 3 animals at day 3 for quantitative real-time PCR analysis. RESULTS: After 1 day, no adhesions were macroscopically detectable. After 3 days, adhesions were detectable which could be separated easily by gravity. After 5 days, all animals had formed adhesions and strong traction was required for adhesiolysis. The adhesions always formed to the ischemic part of the lesions. Quantitative PCR analysis after 3 days demonstrated down-regulation of TACR1 mRNA in the adhesiogenic peritoneum of the lesions compared to non-adhesiogenic peritoneum on the contralateral side. This difference was statistically highly significant (p < 0.01). CONCLUSIONS: In the ischemic lesion model of adhesiogenesis, TACR1 is differentially expressed between adhesiogenic peritoneum and non-adhesiogenic peritoneum at the time-point of adhesion formation.

Molecular detection of breast cancer metastasis in sentinel lymph nodes by reverse transcriptase polymerase chain reaction (RT-PCR): identifying, evaluating and establishing multi-marker panels.

The potential advantage of using quantitative reverse transcriptase polymerase chain reaction (qRT-PCR) methodology to detect metastasis in sentinel lymph nodes (SLNs) of breast cancer (BC) patients was evaluated in this prospective study. We measured the expression of relevant gene transcripts in SLNs using an innovative algorithm and compared the results of single-marker assays versus multi-marker assays with conventional histological detection methods. SLNs from women aged ≥ 18 years diagnosed with unilateral BC were examined by haematoxylin-eosin staining and immunohistochemistry and analysed for transcripts of several relevant genes using qRT-PCR (learning group). Four candidate panels of expressed transcript combinations with high sensitivity and specificity were selected for further investigation. The candidate panels were then validated using SLNs from a second group of BC patients (validation group). In the learning group, 74/314 SLN sections from 150 patients were positive for metastasis by histology. The transcripts analysed showed the following individual sensitivities/specificities: cytokeratin 19 (CK19) 94.6%/97.9%; mammaglobin 1 (MGB1) 82.4%/91.7%; mammaglobin 2 (MGB2) 82.4%/96.7%; carcinoembryonic antigen (CEA) 71.6%/97.5%; EPCAM (epithelial cell adhesion molecule) 91.9%/97.1%; and NY-BR-1 82.4%/93.8%. The optimal panel based on the predefined criteria comprised four markers: CK19, MGB1, EPCAM, and NY-BR-1, of which ≥ 2 had to be positive (95.9% sensitivity, 95.0% specificity, 85.5% positive predictive value (PPV), and 98.7% negative predictive value (NPV)). Overall concordance with histology was 95.2%. In the validation group, 84/315 SLN sections from 235 patients were histologically positive, and panel sensitivity, specificity and overall accuracy were 88.1, 95.2 and 93.3%, respectively, at the SLN section level. In conclusion, molecular staging using expression patterns of relevant transcripts in SLNs could serve as a useful complement to standard diagnostic work-up in BC patients. The proposed flexible multi-parametric approach does not improve the overall accuracy compared with the single-marker approach. However, it overcomes several limitations of the previously reported molecular assays for SLN diagnosis.

The Brustkrebs-Studien.de website for breast cancer patients: User acceptance of a German internet portal offering information on the disease and treatment options, and a clinical trials matching service.

BACKGROUND: The internet portal http://www.brustkrebs-studien.de (BKS) was launched in 2000 by the German Society of Senology (DGS) and the Baden-Württemberg Institute for Women's Health (IFG) to provide expert-written information on breast cancer online and to encourage and facilitate the participation of breast cancer patients in clinical trials. We describe the development of BKS and its applications, and report on website statistics and user acceptance. METHODS: Existing registries, including ClinicalTrials.gov, were analysed before we designed BKS, which combines a trial registry, a knowledge portal, and an online second opinion service. An advisory board guided the process. Log files and patient enquiries for trial participation and second opinions were analysed. A two-week user satisfaction survey was conducted online. RESULTS: During 10/2005-06/2010, the portal attracted 702,655 visitors, generating 15,507,454 page views. By 06/2010, the website's active scientific community consisted of 189 investigators and physicians, and the registry covered 163 clinical trial protocols. In 2009, 143 patients requested trial enrolment and 119 sought second opinions or individual treatment advice from the expert panel. During the two-week survey in 2008, 5,702 BKS visitors submitted 507 evaluable questionnaires. Portal acceptance was high. Respondents trusted information correctness (80%), welcomed self-matching to clinical trials (79%) and planned to use the portal in the future (76%) and recommend it to others (81%). CONCLUSIONS: BKS is an established and trusted breast cancer information platform offering up-to-date resources and protocols to the growing physician and patient community to encourage participation in clinical trials. Further studies are needed to assess potential increases in trial enrolment by eligibility matching services.

Effects of sex hormones in oral contraceptives on the female sexual function score: a study in German female medical students.

BACKGROUND: The survey was conducted to compare the influence of sex hormones in oral contraceptives (OCs) on female sexual function. METHODS: One thousand eighty-six female German medical students completed an online-based questionnaire incorporating the Female Sexual Function Index (FSFI). Oral contraceptives used were classified into those containing androgenic or antiandrogenic progestins and by ethinylestradiol (EE) dosage (20 mcg, 30 mcg and >30 mcg). Female Sexual Function Index scores in women using OCs were compared to those in nonusers. RESULTS: Seven hundred fifty-two of 1086 participating women used OCs. No statistically significant differences in FSFI scores were found among women using OCs containing androgenic or antiandrogenic progestins, nor were any seen between different EE dosages. In general, OC users had lower FSFI scores than nonusers. CONCLUSION: Female Sexual Function Index scores were negatively influenced by the use of OCs. However, the impact of an androgenic or antiandrogenic progestin content or different dosages of EE as modulating factors of female sexual function seems negligible.

Prevalence of sexual dysfunction and impact of contraception in female German medical students.

INTRODUCTION: Female sexual dysfunction (FSD) is a very common disorder, with an estimated prevalence of having at least one sexual dysfunction of about 40%. AIM: To investigate the prevalence and types of FSD and the relationship between hormonal contraception (HC) and FSD in female German medical students. MAIN OUTCOME MEASURES: Female Sexual Function Index (FSFI) with additional questions on contraception, sexual activity, and other factors that may influence sexual function. METHODS: An online questionnaire based on the FSFI was completed by students from six medical schools. Obtained data were screened for inconsistencies by programmed algorithms. RESULTS: A total of 1,219 completed questionnaires were received, and 1,086 were included in the analyses after screening. The mean total FSFI score was 28.6 +/- 4.5. 32.4% of women were at risk for FSD according to FSFI definitions. Based on domain scores, 8.7% for were at risk for FSD concerning orgasm, 5.8% for desire, 2.6% for satisfaction, 1.2% for lubrication, 1.1% for pain and 1.0% for arousal. The method of contraception and smoking were factors with significant effect on the total FSFI score whereby hormonal contraception was associated with lower total FSFI scores and lower desire and arousal scores than no contraception and non-hormonal contraception only. Other variables such as stress, pregnancy, smoking, relationship and wish for children had an important impact on sexual function as expected according to earlier studies. CONCLUSIONS: The prevalence of students at high risk for FSD was consistent with the literature although domain subscores differed from samples previously described. The contraception method has a significant effect on the sexual functioning score and women using contraception, especially hormonal contraception, had lower sexual functioning scores. Stress and relationship among other variables were found to be associated with sexual function and may thus provide insight into the etiology of sexual disorders.

Quantifying electrosurgery-induced thermal effects and damage to human tissue: an exploratory study with the fallopian tube as a novel in-vivo in-situ model.

OBJECTIVE: To develop a human in vivo in situ model for analyzing the extent and the basic mechanisms of thermal spread and thermal tissue damage. DESIGN: Prospective, open, uncontrolled, nonrandomized, single-center exploratory study. SETTING: University hospital. PATIENTS: Eighteen adult patients undergoing open abdominal hysterectomy for benign disease. INTERVENTIONS: Unilateral fallopian tube tissue desiccation (10 seconds) with a laparoscopic bipolar clamp at routine settings. MAIN OUTCOME MEASURES: Deep tissue temperature (thermal probe), tissue surface temperature (thermal camera), and gross and histologic assessments of lesions with a newly developed composite scoring system. RESULTS: Fifteen specimens from 18 patients were evaluated. Lateral thermal damage (LTD; determined by lactate dehydrogenase staining), was strongly correlated with maximum desiccation temperature. Deep tissue LTD and surface LTD were linearly related. Histologic and macroscopic criteria for thermal effects and damage and the corresponding scores proved functional and strongly correlated with LTD. Measurement of deep tissue and tissue surface temperatures consistently yielded complete temporal and spatial temperature distributions that were describable by the heat equation. CONCLUSIONS: Our novel in vivo in situ model allows standardized, reproducible, quantitative assessment of electrosurgery-induced thermal effects and damage in human tissue. It will likely provide further insight into the underlying biothermomechanics and may prove useful in the development of safety guidelines for laparoscopic electrosurgery.

The extent of adhesion induction through electrocoagulation and suturing in an experimental rat study.

OBJECTIVE: To investigate the effect of three types of peritoneal trauma occurring during surgery (high-frequency bipolar current, suturing, and mechanical damage) on postoperative adhesion formation in a rodent animal model. DESIGN: Randomized, controlled experimental trial in an in vitro animal model. SETTING: Laboratory facilities of a university department of obstetrics and gynecology. ANIMAL(S): Thirty-five female Wistar rats. INTERVENTION(S): Bilateral experimental lesions were created on the abdominal wall in every animal. The effect of minimal electrocoagulation was examined by creating lesions (n = 14) through sweeps of a bipolar forceps with a duration of 1 second and standardized pressure. For extensive electrocoagulation standardized lesions (n = 14) were created using sweeps of a duration of 3 seconds and three times more pressure. For mechanical trauma, standardized lesions (n = 14) were created by denuding the peritoneum mechanically. To study the additive effect of suturing, experimental lesions were created by suturing plus minimal electrocoagulation (n = 14) or mechanical denuding (n = 14). MAIN OUTCOME MEASURE(S): Adhesion incidence, quantity, and quality of the resulting adhesions were scored 14 days postoperatively. Adhesions were studied histopathologically. RESULT(S): Mechanical denuding of the peritoneum did not result in adhesion formation. After minimal electrocoagulation, mean adhesion quantity of the traumatized area averaged 0%. This contrasted with extensive electrocoagulation, where there was 50% adhesion. Additional suturing increased mean adhesion quantity to 73% and 64% for superficial electrocoagulation and mechanical denuding, respectively. CONCLUSION(S): We conclude that superficial trauma limited mostly to the parietal peritoneum may be a negligible factor in adhesion formation in this model. This appears to be irrespective of the mode of trauma. However, additional trauma to the underlying tissues, either by deeper electrocoagulation or suturing, leads to significantly increased adhesion formation. These data also show that there is a spectrum of electrocoagulation trauma at the lower end of which there is little adhesion formation.

Thermal conduction, compression, and electrical current--an evaluation of major parameters of electrosurgical vessel sealing in a porcine in vitro model.

Bipolar vessel sealing is pivotal in laparoscopic hemostasis. However, major coaptive desiccation parameters have yet to be investigated in detail. The current investigation aims to study the impact of compressive pressure, thermal conduction, and electrical current effects on seal quality in a randomized, controlled experimental trial in an in vitro porcine model of vessel sealing. A total of 106 porcine vessels were sealed with either bipolar current or thermal conduction. Compressive pressure on the sealing site and maximum temperature were varied and monitored. Additionally, the longitudinal vessel tension was measured. The burst pressure of the resulting seal was determined as an indicator of seal quality. In bipolar coaptation, seal quality depends on the compressive pressure applied to the coagulation site in both arteries and veins. The optimal pressure interval was around 270 mN/mm2 for arteries and 200 mN/mm2 for veins. Deviation from these optimal pressures towards low and high extremes led to significantly fewer successful seals. We also found that both maximum coaptation temperature and vessel shrinking correlated with the seal quality. This correlation was reciprocal in arteries and veins. Thermal conduction alone was less successful than sealing by bipolar current. Therefore, compressive pressure during coaptation determines the seal quality. Upper and lower pressure boundaries for safe coaptation exist for both arteries and veins. Vessel sealing by thermal conduction without electrical current effects is possible but represents a less effective method for coaptation. These findings have implications for the rational design of new electrosurgical instruments.