Laparoscopic Diagnosis and Treatment of Gossypiboma Postconventional Ovariohysterectomy in a Bitch

Introduction. Gossypiboma is a rare surgical complication in small animals. The authors reported the laparoscopic diagnosis and treatment of an abdominal gossypiboma and chronic draining fistula postopen ovariohysterectomy (OVH) unresponsive to medical treatment in a bitch. Case Presentation. The patient had undergone OVH and exploratory laparotomy in other veterinary practice 3 years previously. The animal, presenting a chronic fistula, was then referred to UFSM Veterinary Hospital. Ultrasonographic examination revealed a structure compatible with a granuloma. For the laparoscopic procedure, a 3-port (two at 11 mm; one at 6 mm) access was used. Adhesiolysis and mass removal were performed by blunt dissection and bipolar electrocoagulation. The fistula was treated by mobilising the omentum through it. There were no intra- or postoperative complications. The chronic wound showed first intention healing. The mass was composed of fibrous tissues surrounding one surgical gauze. Discussion and Conclusion. The removal of a retained surgical gauze in the abdomen by laparoscopy has already been described in medicine. However, a laparoscopic approach for treating a fistulous draining tract due to a gossypiboma has not been previously reported in dogs. Laparoscopic exploration of the fistula allowed the use of a pedicled omental flap through infected sites to control chronic infection. Laparoscopic surgery can be used to identify and treat abdominal gossypiboma in dogs, including those with chronic abdominal sinus.

Preservation of the ovarian reserve and hemostasis during laparoscopic ovarian cystectomy by a hemostatic agent versus suturing for patients with ovarian endometriosis: study protocol for randomized controlled, non-inferiority trial (PRAHA-2 trial)

Background Endometriosis (EMS) can be implanted everywhere, especially in pelvic organs. EMS can be asymptomatic, but it can result in pelvic pain and infertility by inducing local inflammation and pelvic adhesion. The prevalence of EMS is about 10% in reproductive-age women and higher in women with pelvic pain or infertility. For young patients with ovarian EMS, laparoscopic ovarian cystectomy is effective in relieving pelvic pain and preventing local recurrence. However, there is a concern that the ovarian reserve would decrease after the operation because of the removal of a part of the normal ovarian tissue and thermal damage during hemostasis, which depends on the types of hemostasis such as bipolar electrocoagulation, suturing, and the use of a hemostatic agent. In this study, we aim to evaluate the protective effect for the ovarian reserve and hemostasis between a hemostatic agent and suturing during laparoscopic ovarian cystectomy for patients with ovarian EMS. Methods This study is a randomized controlled, non-inferiority trial, where a total of 90 patients with ovarian EMS will be randomly assigned to the experimental (hemostatic agent) and control (suturing) groups. In the control group, a barbed suture will be applied for hemostasis, whereas a hemostatic agent will be applied in the experimental group. If two methods are insufficient, bipolar electrocoagulation will be applied for complete hemostasis. As the primary endpoint, the reduction rate of serum anti- Müllerian hormone (AMH) levels reflecting the ovarian reserve will be compared between the two groups 12 weeks after surgery. As secondary endpoints, we will compare the reduction rate of AMH level 48 weeks after surgery, the time required to complete hemostasis, the success rate of hemostasis within 10 min, and adverse events associated with operation. Discussion We expect that the protective effect for the ovarian reserve and hemostasis may be comparable between the two methods, suggesting that a hemostatic agent may be preferred considering that it is easy to use during laparoscopic ovarian cystectomy. Trial registration ClinicalTrials.govNCT04643106. Registered on 22 November 2020

Preservation of the ovarian reserve and hemostasis during laparoscopic ovarian cystectomy by a hemostatic agent versus suturing for patients with ovarian endometriosis: study protocol for randomized controlled, non-inferiority trial (PRAHA-2 trial)

Background: Endometriosis (EMS) can be implanted everywhere, especially in pelvic organs. EMS can be asymptomatic, but it can result in pelvic pain and infertility by inducing local inflammation and pelvic adhesion. The prevalence of EMS is about 10% in reproductive-age women and higher in women with pelvic pain or infertility. For young patients with ovarian EMS, laparoscopic ovarian cystectomy is effective in relieving pelvic pain and preventing local recurrence. However, there is a concern that the ovarian reserve would decrease after the operation because of removal of a part of the normal ovarian tissue and thermal damage during hemostasis, which depends on types of hemostasis such as bipolar electrocoagulation, suturing, and the use of a hemostatic agent. In this study, we aim to evaluate the protective effect for the ovarian reserve and hemostasis between a hemostatic agent and suturing during laparoscopic ovarian cystectomy for patients with ovarian EMS.Methods: This study is a randomized controlled, non-inferiority trial, where a total of 90 patients with ovarian EMS will be randomly assigned to the experimental (hemostatic agent) and control (suturing) groups. In the control group, a barbed suture will be applied for hemostasis, whereas a hemostatic agent will be applied in the experimental group. If two methods are insufficient, bipolar electrocoagulation will be applied for complete hemostasis. As the primary endpoint, the reduction rate of serum anti- Müllerian hormone (AMH) levels reflecting the ovarian reserve will be compared between the two groups 12 weeks after surgery. As secondary endpoints, we will compare the reduction rate of AMH level 48 weeks after surgery, the time required to complete hemostasis, the success rate of hemostasis within 10 minutes, and adverse events associated with operation. Discussion: We expect that the protective effect for the ovarian reserve and hemostasis may be comparable between the two methods, suggesting that a hemostatic agent may be preferred considering that it is easy to use during laparoscopic ovarian cystectomy. Trial registration: ClinicalTrials.gov: NCT04643106. Registered on 22 November 2020.

Thermal damage width and hemostatic effect of bipolar electrocoagulation, LigaSure, and Ultracision techniques on goat mesenteric vessels and optimal power for bipolar electrocoagulation

Background We aimed to determine the optimal bipolar electrocoagulation power for laparoscopic surgery and to investigate which method, bipolar electrocoagulation, advanced bipolar, or ultrasonic technique was more reliable. Methods Goat mesenteric vessels (210 in vivo samples) with diameters of 3.03–5.44 mm were selected. Bipolar electrocoagulation with 80 W, 75 W, 70 W, 65 W, 60 W, 55 W, and 50 W, and advanced bipolar and ultrasonic techniques were performed on mesenteric vessels. The thermal damage width, hemostatic effect, and burst pressure of these tissues were recorded. SPSS version 13.0 was used for all data analysis. Results The results showed that 60 W was the optimal for bipolar electrocoagulation based on the thermal damage width, hemostatic effect, and burst pressure. In contrast, the thermal damage width of advanced bipolar and ultrasonic techniques was smaller than that of bipolar electrocoagulation, and advanced bipolartechnique had the highest successful rate for hemostasis and highest burst pressure. Conclusions Bipolar electrocoagulation was optimally performed with 60 W of power. Compared with ultrasonic and bipolar electrocoagulation techniques, advanced bipolar use was more reliable for mesenteric vessels in laparoscopic surgery; however, bipolar electrocoagulation with optimal power can be used for its simplicity of operation and low cost.

The Impact on Ovarian Reserve of Different Hemostasis Methods in Laparoscopic Cystectomy: A Systematic Review and Meta-analysis

Objective The objective of this review was to analyze the impact on ovarian reserve of the different hemostatic methods used during laparoscopic cystectomy. Data Sources The studies were identified by searching electronic databases (MEDLINE, Embase, Cochrane, LILACS) and scanning reference lists of articles. Methods of Study Selection We selected clinical trials that assessed the influence of hemostatic techniques on ovarian reserve in patients with ovarian cysts with benign sonographic appearance submitted to laparoscopic cystectomy by stripping technique. The included trials compared different laparoscopic hemostatic techniques: suture, bipolar electrocoagulation, ultrasonic energy and hemostatic sealants. The outcomes evaluated were level of serum anti-Mullerian hormone (AMH) and antral follicle count (AFC). The possibility of publication bias was evaluated by funnel plots. Tabulation, Integration and Results Twelve trials involving 1,047 patients were evaluated. Laparoscopic suture was superior to bipolar coagulation when evaluating serum AMH and AFC, in the 1st, 3rd, 6th and 12th month after surgery. In the comparison between bipolar and hemostatic sealants, the results favored the use of hemostatic agents. The use of ultrasonic energy was not superior to the use of bipolar energy. Conclusion We recommend suture for hemostasis during laparoscopic cystectomy.