Comparison of Operative Outcomes Between Monopolar and Bipolar Coagulation in Hepatectomy: A Propensity Score-Matched Analysis in a Single Center

Background: Various hemostatic devices have been utilized to reduce blood loss during hepatectomy. Nonetheless, a comparison between monopolar and bipolar coagulation, particularly their usefulness or inferiority, has been poorly documented. The aim of this study is to reveal the characteristics of these hemostatic devices.Methods: A total of 264 patients who underwent open hepatectomy at our institution from January 2009 to December 2018 were included. Monopolar and bipolar hemostatic devices were used in 160 (monopolar group) and 104 (bipolar group) cases, respectively. Operative outcomes and thermal damage to the resected specimens were compared between these groups using propensity score matching according to background factors. Multivariate logistic regression analysis was performed to identify predictive factors for postoperative complications.Results: After propensity score matching, 73 patients per group were enrolled. The monopolar group had significantly lower total operative time (239 vs. 275 min; P=0.013) and intraoperative blood loss (487 vs. 790 mL; P<0.001). However, the incidence rates of ascites (27.4% vs. 8.2%; P=0.002) and grade ≥3 intra-abdominal infection (12.3% vs. 2.7%; P=0.028) were significantly higher in the monopolar group. Thermal damage to the resected specimens was significantly longer in the monopolar group (4.6 vs. 1.2 mm; P<0.001). Use of monopolar hemostatic device was an independent risk factor for ascites (odds ratio, 5.626, 95% confidence interval 1.881–16.827; P=0.002) and severe intra-abdominal infection (odds ratio, 5.905, 95% confidence interval 1.096–31.825; P=0.039).Conclusions: Although monopolar devices have an excellent hemostatic ability, they might damage the remnant liver. The use of monopolar devices can be one of the factors that increase the frequency of complications.

The use of bipolar coagulation forceps prevented salivary fistula in patients with parotidectomy: a retrospective study

Background Salivary fistula is a relatively common complication in patients who have undergone a parotidectomy. The purpose of this study was to investigate the effects of bipolar coagulation forceps use on salivary fistulas. Methods From March 2015 to June 2020, 177 patients who underwent a parotidectomy in the Department of Oral and Maxillofacial Surgery at the Second Xiangya Hospital of Central South University were recruited. The patients were divided into an experimental group and a control group based on whether bipolar coagulation forceps or sutures were used, respectively. Results The drainage output of the experimental group was significantly lower than that of the control group (p = 0.04). The duration of dressing pressure applied in the experimental group was significantly shorter than that in the control group (p = 0.0003). Moreover, the incidence of salivary fistula in the experimental group (9.8%, 8/82) was notably lower than that in the control group (34.7%, 33/95) (p < 0.0001). In the logistic regression model for salivary fistula development, both the use of bipolar coagulation forceps (p = 0.0021) and drainage output (p = 0.0237) were associated with the presence of salivary fistulas. Conclusions Our findings indicate that the use of bipolar coagulation forceps decreases the incidence of salivary fistula in patients who have undergone a parotidectomy. The use of bipolar coagulation forceps is a safe, effective, and convenient method to prevent salivary fistulas in patients who undergo a parotidectomy. Trial registration: Current Controlled Trials ChiCTR2100044722, Date: 26/03/2021, Retrospectively registered.

Acute haemoperitoneum caused by endometriosis infiltrating the uterine artery - Two case reports and a literature review

Objective: We report 2 cases of haemoperitoneum due to a bleeding of the uterine artery caused by infiltrating endometriosis. We have also conducted a literature review on endometriosis-related intra-abdominal haemorrhage and wrote a practical guideline on how this entity can be recognized and handled. Patients: Case 1: A 49-year-old multiparous woman presented with intense stabbing pain in the lower abdomen during her menstruation. CT angiography showed a bleeding from a side branch of the internal iliac artery. Laparoscopy was performed and an active bleeding from the right uterine artery was confirmed, clearly caused by infiltrating endometriosis lesions. Haemostasis was achieved by bipolar coagulation. Case 2: A 29-year-old nulliparous woman was admitted for observation because of heavy stabbing pain in the right lower quadrant and presence of free fluid on CT abdomen. The day after the admission, laparoscopy was performed because of a decreasing haemoglobin level. An arterial bleeding from the right parametrium was observed, probably originating from the right uterine artery. Histopathological examination of a biopsy of the right parametrium proved the presence of endometriosis. Haemostasis was achieved by bipolar coagulation. Conclusion: Although endometriosis-related haemoperitoneum is a rare entity, this diagnosis should be considered when a patient presents with an intra-abdominal haemorrhage during menstruation or withdrawal bleeding - especially in case of a history or suspicion of endometriosis. Laparoscopy is the cornerstone of the treatment.

Outcomes of treatment of haemorrhoidal disease with KLS Martin maXium marClamp® CUT IQ thermal tissue fusion instrument based on offset electrode technology compared to the Milligan-Morgan procedure with bipolar coagulation for the excision of grade III and IV haemorrhoids

Introduction. The study compared the effects of surgical treatment of grade III and IV haemorrhoids achieved with a conventional operative technique and by using a thermal tissue fusion instrument based on offset electrode technology. A total of 60 patients with grade III and IV haemorrhoids were operated on in the Department of General and Oncologic Surgery, Municipal Hospital in Siemianowice Śląskie, and in the On-Clinic Medical Centre in Chorzów, between October 2011 and September 2015. Aim. The aim of the study was to compare the outcomes of treatment of haemorrhoidal disease using KLS Martin maXium marClamp® CUT IQ thermal tissue fusion instrument based on offset electrode technology and the Milligan-Morgan surgical procedure with bipolar coagulation for the excision of grade III and IV haemorrhoids. Material and methods. The patients were divided into two groups: Group 1 – patients operated on using KLS Martin maXium marClamp® CUT IQ thermal tissue fusion instrument based on offset electrode technology. Group 2 – patients operated on using the conventional Milligan-Morgan technique with electrocoagulation. The evaluated parameters included the length of hospital stay after surgery, duration of the surgical procedure, level of pain on the postoperative days 1 and 2 rated on a 10-point VAS scale, and postoperative wound healing time. Results. A reduction in postoperative pain, shorter procedure duration and hospital stay, and more rapid postoperative wound healing were observed in Group 1 compared to Group 2. Conclusions. In our study material, the application of a thermal tissue fusion instrument using offset electrode technology in surgeries to remove grade III and IV haemorrhoids, compared to the conventional Milligan-Morgan procedure with electrocoagulation, brought the following results: – less postoperative pain, – shorter duration of surgical procedure, – reduced length of hospital stay, – faster healing of postoperative wound.

Endoscopic treatment for chronic radiation proctitis

The preferred method in detection and staging of chronic radiation proctitis is colonoscopy. Moreover, endoscopy is used widely in treating patients with this disease. The main goal of endoscopic techniques is hemostasis and elimination of vascular transformations. This includes formalin application, band ligation, various types of laser irradiation, bipolar coagulation and cryotherapy. However, these methods are associated with relatively high risk of complications, whereas argon plasma coagulation and radiofrequency ablation are effective, relatively safe techniques for chronic radiation proctitis and well tolerated by patients.