Re: Critical Analysis of Early Recurrence after Laparoscopic Radical Cystectomy in a Large Cohort by the ESUT

okThe authors critically analyze a large cohort by the European Association of Urology Section of Uro-Technology and assess early recurrences after laparoscopic radical cystectomy and evaluation of risk factors, including the impact of pneumoperitoneum. They focus their analysis on patients with favorable pathology (pT2 N0 R0 disease), \ufb01nding that 27 of 311 patients (8.7%) experienced recurrences during the following 24 months. Surgical negligence was observed in only 1 patient, which was associated with the endo bag rupturing during transvaginal extraction with subsequent vulvar and peritoneal tumor metastasis after 4 months. Among the 27 patients with recurrence a shorter recurrence-free survival was signi\ufb01cantly predictive of cancer speci\ufb01c death (HR 0.86, 95% CI 0.78e0.94, p \ubc 0.001) as well as carcinoma in situ on pathological examination (HR 3.68, 95% CI 1.07e12.7, p \ubc 0.039). While analyzing causes of early recurrence, the authors suggest that the continuous insuf\ufb02ation-desuf\ufb02ation and leakage of gas around the portsdwith consequent aspiration of tumor cells via a chimney effectdmay promote tumor seeding (TS)

Severe inflammatory reaction induced by peritoneal trauma is the key driving mechanism of postoperative adhesion formation

<p>Abstract</p> <p>Background</p> <p>Many factors have been put forward as a driving mechanism of surgery-triggered adhesion formation (AF). In this study, we underline the key role of specific surgical trauma related with open surgery (OS) and laparoscopic (LS) conditions in postoperative AF and we aimed to study peritoneal tissue inflammatory reaction (TIR), remodelling specific complications of open surgery (OS) versus LS and subsequently evaluating AF induced by these conditions.</p> <p>Methods</p> <p>A prospective randomized study was done in 80 anaesthetised female Wistar rats divided equally into 2 groups. Specific traumatic OS conditions were induced by midline incision line (MIL) extension and tissue drying and specific LS conditions were remodelled by intraperitoneal CO₂insufflation at the 10 cm of water. TIR was evaluated at the 24^th, 72^nd, 120^thand 168^thhour by scoring scale. Statistical analysis was performed by the non-parametric t test and two-way ANOVA using Bonferroni post-tests.</p> <p>Results</p> <p>More pronounced residual TIR was registered after OS than after LS. There were no significant TIR interactions though highly significant differences were observed between the OS and LS groups (p < 0.0001) with regard to surgical and time factors. The TIR change differences between the OS and LS groups were pronounced with postoperative time p < 0.05 at the 24^thand 72^nd; p < 0.01 - 120^thand p < 0.001 - 168^thhrs. Adhesion free wounds were observed in 20.0 and 31.0% of cases after creation of OS and LS conditions respectively; with no significant differences between these values (p > 0.05). However larger adhesion size (41.67 ± 33.63) was observed after OS in comparison with LS (20.31 ± 16.38). The upper-lower 95% confidential limits ranged from 60.29 to 23.04 and from 29.04 to 11.59 respectively after OS and LS groups with significant differences (p = 0.03). Analogous changes were observed in adhesion severity values. Subsequently, severe TIR parameters were followed by larger sizes of severe postoperative adhesions in the OS group than those observed in the LS group.</p> <p>Conclusions</p> <p>MIL extension and tissue drying seem to be the key factors in the pathogenesis of adhesion formation, triggering severe inflammatory reactions of the peritoneal tissue surrounding the MIL resulting in local and systemic consequences. CO₂insufflation however, led to moderate inflammation and less adhesion formation.</p

Inflammation and Neurotransmission of the Vescico-Uterine Space in Cesarean Sections:

Collagen IV and laminin play a key role in regulating stiffness, elasticity and flexibility of the vescico-uterine space (VUS) tissue. The neurotensin (NT), the neuropeptide tyrosine (NPY) and the protein gene product 9.5 (PGP 9.5) possessing vasorelaxation and tissue vascularization activities, play key roles in cervical ripening, scar innervations and pain control. We propose that the integrity of these substances in VUS tissue is compromised after Cesarean section (CS), since wound healing disturbances and pelvic pain, as well as pregnancy and delivery complications, are related with lower uterine segment dysfunctions after CS. Therefore, the contents of collagen IV, laminin, NT, NPY and PGP 9.5 nerve fibres from the VUS tissue samples obtained during the first CS and the repeated CS were comparatively studied. VUS specimens were collected from 104 patients during CS and evaluated by immunohistochemistry. Collagen IV and laminin were mostly found in the vascular membrane bounds and their images were quantitatively evaluated by Quantimet Leica analyzer software. Differences of collagen IV, laminin, NT, NPY and PGP 9.5 values in VUS tissue between the first CS and the repeat CS samples were calculated by Student's Mest. Reduced laminin and increased collagen IV values were observed in the VUS scar tissue after the repeated CS in comparison with those of VUS intact tissue obtained during the first CS. Significantly higher values of nerve fibres, containing NT, NPY and PGP 9.5 were registered in intact VUS tissue samples, respectively 5±0.7, 7±0.6 and 5±0.9 CU, than those of VUS scar tissue samples obtained during the repeated CS, respectively 3±0.6,2±0.4 and 3±0.7 CU (p<0.05). The authors observed increased collagen IV and reduced laminin values after the repeated CS which might be the key signs of inflammatory damage of VUS scar tissue by CS. These findings were strengthened by the registration of decreased NT, NPY and PGP 9.5 values in the same samples, which are important neurotransmitters and are responsible for optimal wound healing, pain control and lower uterine segment functions

Cesarean Scar Defect Manifestations during Pregnancy and Delivery

The cesarean scar is a significant risk factor for the following pregnancies and especially deliveries. In this chapter, we discussed the diagnosis, incidence, detection, manifestations, and prognosis of pregnancy and delivery with cesarean scars. A systematic review of current literature showed that a manifestation of cesarean scars during the following pregnancies is not predictable, in general, although modern visualization technologies could reveal some specific features of scar defects that are associated with complications during pregnancy and delivery. However, there is no factor, which could serve as the main prognostic guide for obstetricians to make a decision for VBAC, thus Edwin Cragin’s phrase “once a cesarean, always a cesarean” has represented the essential healthcare issue over the century. At the moment, the most reasonable measurements to prevent uterine scar complications are reducing the rate of Cesarean Sections, opening the uterus transversely in the lower segment, and stitching the uterus with one layer only continuously using a big needle preferable by Stark technique of Cesarean section

Endoscopic surgical procedures for cervical cancer treatment: a literature review

Cervical cancer remains the leading cause of death by gynecologic cancer worldwide, comprising 15% of all cancers in women younger than 40 years. Standard treatments of invasive cancer in early stages are radical hysterectomy and pelvic radiotherapy, both of which are almost reliable by minimal invasive surgery, so as traditional laparoscopy and robotic-assisted surgery. Moreover, 45% of reproductive-age women are diagnosed with stage IB1 disease, making the fertility-sparing procedure, radical trachelectomy, a viable option for most patients for treatment of early-stage cervical cancer and maintenance of future fertility. This chapter focuses on emerging surgical techniques, including the laparoscopic and robotic approach, are improving perioperative outcomes for these patients. A manual and computer-aided search was carried out for all reviews related to this topic, randomized controlled trials, prospective observational studies, retrospective studies and case reports published between 1980 and 2012, assessing robotic surgery, Search strings were: laparoscopic surgery; robot or robot-assisted surgery; radical hysterectomy; cervical cancer, minimally invasive surgery. Robotic-assisted gynecologic surgery has increased worldwide, considering the number of scientific articles dedicated to it though few retrospective and prospective studies have demonstrated the feasibility of robotic-assisted surgery in radical hysterectomy. In general, robot-assisted gynecologic surgery is often associated with longer operating room time but generally similar clinical outcomes, decreased blood loss, and shorter hospital stay. Robotic-assisted procedures are not, however, without their limitations: the equipment is still very large, bulky, and expensive, the staff must be trained, specifically on draping and docking the apparatus to maintain efficient operative times. Functional limitations include lack of haptic feedback, limited vaginal access, limited instrumentation, and larger port incisions. Exchanging instruments becomes more cumbersome and requires a surgical assistant to change the instruments. Additionally, the current robotic instruments do not include endoscopic staplers or vessel sealing devices. Finally, laparoscopic radical hysterectomy is a feasible and safe procedure that is associated with fewer intraoperative and postoperative complications than abdominal radical hysterectomy. The role of robotic-assisted surgery is continuing to expand, but well-designed, prospective studies with well-defined clinical, long-term outcomes, including complications, cost, pain, return to normal activity, and quality of life, are needed to fully assess the value of this new technology in radical hysterectomy. Scientific literature has shown the feasibility of a radical resection by minimally invasive oncological surgery and documented an equivalent number of pelvic nodes harvested by laparoscopy and open surgery. Women with a tumor size 2 cm or smaller and stage IA1 with lymphovascular space involvement (LVSI), IA2, or IB1 disease may be offered fertility-sparing treatment after thorough evaluation by an oncologist trained in this management

The Renaissance of the Vaginal Hysterectomy&mdash;A Due Act

For many years, vaginal and abdominal hysterectomies were part of the routine procedures in many departments. Both of them lost their priority due to the introduction of endoscopy and robotic surgery. The disappearing abdominal hysterectomy is certainly reasonable, but the decline of using vaginal hysterectomy seems not to be justified, and it is an optimal example of the recent emergence of the Natural Orifice Surgery discipline. A modified method for vaginal hysterectomy is presented in order to encourage gynecologists to reconsider vaginal hysterectomy as a valid method. This method is the outcome of critical analyses of different vaginal hysterectomy methods. It is simple, reasonable, only ten steps, easy to learn, perform and teach, and proven to be a shorter operation with minimal blood loss and reduced need for analgesics when compared to the traditional way. Endoscopy or robotic surgery is not available everywhere. Therefore, it is important that gynecologists in low-resource settings be familiar with this simple method