Colorectal polypectomy is an effective method for prevention of colorectal cancer. Many endoscopic instruments have been used for colorectal polypectomy, such as snares, forceps, endoscopic clips, a Coagrasper, retrieval net, injector, and electrosurgery generator unit (ESU). Understanding the characteristics of endoscopic instruments and their proper use according to morphology and size of the colorectal polyp will enable endoscopists to perform effective polypectomy. I reviewed the characteristics of endoscopic instruments for colorectal polypectomy and their appropriate use, as well as the basic principles and settings of the ESU.
Colorectal Neoplasms ; Electrosurgery ; Methods ; Polyps ; SNARE Proteins ; Surgical Instruments

OBJECTIVETo investigate a new operation method for the treatment of benign prostate hyperplasia(BPH).

METHODSOne hundred and seventy-nine patients with BPH were treated by the combined use of transurethral electrovaporization ablation of the prostate(TUVP) and transurethral resection of the prostate(TURP).

RESULTSThe procedure was successful and the results were satisfactory, with little bleeding and no serious complication. IPSS decreased from 29.0 preoperatively to 7.6 postoperatively (P < 0.05) and Qmax increased from 5.8 ml/s preoperatively to 14.8 ml/s postoperatively(P < 0.05).

CONCLUSIONSThe combined use of TUVP and TURP is a safe, effective and ideal method for the treatment of BPH.

Aged ; Aged, 80 and over ; Electrosurgery ; Humans ; Male ; Middle Aged ; Prostatic Hyperplasia ; surgery ; Transurethral Resection of Prostate ; methods

Adolescent ; Child ; Child, Preschool ; Electrosurgery ; Female ; Humans ; Male ; Tonsillectomy ; instrumentation ; methods

OBJECTIVETo compare the postoperative depths of the coagulation zones and pathological changes between bipolar transurethral resection of the prostate with plasmakinetic energy (PKRP) and monopolar transurethral prostatectomy (TURP) in canines.

METHODSTwenty-five male dogs were randomly divided into a PKRP group (n = 12), a TURP group (n = 12) and a sham-operation control group (n = 1). The dogs were sacrificed, their prostates harvested at 0 week (immediately after surgery), 1 week, 2 weeks and 8 weeks postoperatively and sectioned for pathologic analysis and measurement of the coagulation zones.

RESULTSAt 0, 1 and 2 weeks after the operation, the coagulation depths were (237.73 +/- 20.12) microm, (113.03 +/- 16.65) microm and (106.01 +/- 16.36) microm in the PKRP group, and (200.75 +/-19.34) microm, (129.46 +/- 17.81) microm and (116.04 +/- 25.67) microm in the TURP group (P < 0.01). At 8 weeks, the coagulation zones completely peeled off and the wounds were covered by regenerated urothelial in both of the groups. At 0, 1, 2 and 8 weeks, different inflammatory reactions were observed in the prostates of the PKRP and TURP groups, with some glandular lumens beneath the coagulation zones expanded and epithelia damaged. However, none of these phenomena occurred in the sham-operation control group.

CONCLUSIONPathologically, PKRP and TURP inflicted basically similar effects on the prostate of the canine. However, the coagulation zone was deeper intraoperatively and became thinner postoperatively with the former than with the latter, which suggests that PKRP causes less bleeding and less penetrative thermal damage than TURP.

Animals ; Dogs ; Electrocoagulation ; Electrosurgery ; Male ; Prostate ; pathology ; surgery ; Transurethral Resection of Prostate ; methods

Here, a case of a patient with incidental finding of a carcinoid tumor of the ampulla of Vater, who was treated with endoscopic snare papillectomy, is reported. A 62-year-old male was admitted to our hospital due to a carcinoid tumor of the ampulla of Vater, which was found during follow-up endoscopy after an endoscopic mucosal resection of early gastric cancer. No lymphadenopathy or visceral metastasis was found on an abdominal CT scan, In-111 octerotide scan and EUS. The ampulla was then en bloc removed by endoscopic snare papillectomy. The resected specimen revealed a 0.7 X 0.5 X 0.1 cm sized carcinoid tumor. All margins of resection were negative for tumor. After six months of follow-up, there was no evidence of recurrence and metastasis, either endoscopically or radiologically. To our knowledge, this case is the first report of an ampullary carcinoid tumor treated by endoscopic snare papillectomy in Korea.
Ampulla of Vater/pathology/*surgery ; Bile Duct Neoplasms/diagnosis/*surgery ; Carcinoid Tumor/diagnosis/*surgery ; *Duodenoscopy ; Electrosurgery/*methods ; Humans ; Male ; Middle Aged

OBJECTIVE: To investigate the surgery management of glottic carcinoma with high-frequency electrotome. METHOD: Twenty cases of patients with glottic carcinoma were treated by cordectomy under micro-laryngoscopy with high-frequency electrotome. RESULT: The 20 patients were followed up from 5 months to 6 years, retained good laryngeal function and structure: 1 case had local recurrences after 6 months, underwent total laryngectomy, and now no recurrence had been found: 19 cases (mild adhesions of vocal cords formed in 2 cases) had no local recurrence nor lymph node metastasis. CONCLUSION It is unnecessary to invest in expensive equipment in the cordectomy under micro-laryngoscopy with high frequency electrotome under general anesthesia and the result is satisfactory.
Aged ; Electrosurgery ; instrumentation ; Glottis ; pathology ; Humans ; Laryngeal Neoplasms ; pathology ; surgery ; Laryngectomy ; instrumentation ; methods ; Male ; Microsurgery ; Middle Aged ; Treatment Outcome

Electricity ; Electrosurgery ; instrumentation ; Equipment Design ; Equipment Safety ; methods ; standards ; Guidelines as Topic ; Medical Errors ; prevention & control ; Surgical Equipment ; standards

Adult ; Cervical Intraepithelial Neoplasia ; diagnosis ; surgery ; Electrosurgery ; methods ; Female ; Humans ; Middle Aged ; Uterine Cervical Neoplasms ; diagnosis ; surgery

OBJECTIVETo evaluate the method and clinical value of endoscopic surgery by comparing endoscopic resection and vaporization for superficial bladder tumor.

METHODS396 patients with superficial bladder papillary transitional cell carcinoma were treated by endoscopic therapy. 180 patients (Group A) were treated by transurethral resection of bladder tumor (TURBT) and 216 (Group B) by transurethral vaporization of bladder tumor (TVBT). Periodic postoperative intra-vascular instillation of chemotherapy was given to both groups. Operating time, amount of bleeding during operation, complications and recurrence rate were compared.

RESULTSIn group B, the amount of bleeding and complications during operation were lower than those in group A, but TVBT rated better by clearer view and simplicity in maneuver. The operating time, recurrence rate in group B were similar to those in group A.

CONCLUSIONTransurethral vaporization of bladder cancer, with simplicity in maneuver, less bleeding and fewer complications, rates better in effectiveness and clinical value than resection.

Adult ; Aged ; Aged, 80 and over ; Cystoscopy ; methods ; Electrosurgery ; methods ; Female ; Humans ; Male ; Middle Aged ; Neoplasm Recurrence, Local ; Time Factors ; Urinary Bladder Neoplasms ; surgery

OBJECTIVETo compare the safety and efficacy of RevoLix 120 W 2 µm continuous-wave (cw) laser enucleation of the prostate with transurethral resection of prostate (TURP) in patients with symptomatic benign prostatic hyperplasia (BPH). And to evaluate clinical value of 120 W 2 µm cw laser enucleation.

METHODSAll 168 patients with BPH underwent 2 µm cw laser enucleation (n = 88) or TURP (n = 80) between January 2010 and January 2011. The operative time, drop in hemoglobin, drop in serum sodium, indwelling catheterization time and operative complications were recorded. International prostate symptom score (IPSS), quality of life (QOL), urinary peak flow rate (Qmax) and post-voiding residual urine (PVR) were also compared.

RESULTSThe mean operative time was slightly longer in the 2 µm laser group ((63.2 ± 21.6) min) than the TURP group ((59.4 ± 18.6) min) (P > 0.05). Transfusions were not necessary in 2 µm laser group. Catheter indwelling time were (1.8 ± 0.6) days vs. (3.5 ± 2.6) days in 2 µm laser group than in TURP group (t = 3.912, P < 0.05). All cases were followed up for 3 - 12 months, the IPSS, QOL, Qmax and PVR were 6.1 ± 2.0, 4.4 ± 1.6, (18.8 ± 4.8) ml/s and (21.6 ± 16.5) ml in the 2 µm laser group, and were 6.3 ± 2.4, 1.9 ± 1.1, (18.4 ± 4.2) ml/s, (23.2 ± 14.6) ml in TURP group respectively. All the markers were improved significantly compared with that of preoperative in both groups (t = 12.453 - 26.213, P < 0.01), but no statistical differences could be found between the two groups. Perioperative complications were less in the 2 µm laser group.

CONCLUSIONSThe 120 W 2 µm cw laser enucleation is an novel excellent treatment for BPH as well as TURP, and has the advantage of significantly less blood loss, shorter hospitalization, shorter catheter indwelling time and rapid recovery after surgery.

Aged ; Aged, 80 and over ; Electrosurgery ; Follow-Up Studies ; Humans ; Laser Therapy ; Male ; Middle Aged ; Prostatic Hyperplasia ; surgery ; Transurethral Resection of Prostate ; methods ; Treatment Outcome