Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “CAUTERY”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 37 records · Page 2Linked to original sources
PubMed1980

[An ophthalmological cautery (author's transl)].

A microcautery specially developed for ophthalmological procedures--in contrast to the cauteries commonly used in ophthalmology--is described. It is a foot-operated unit controlled by the surgeon or his assistant. The power settings for the cautery tip are designed to permit easy selection of optimum current flow. The pre-selected cautery temperature is not affected by switching on and off or by the cautery tip becoming red-hot. There is a continuous audible signal as long as power is reaching the cautery tip. The device has been in use for three years without giving trouble.

Electrocoagulation↗
PubMedDate not supplied

Rapid communication: early potency outcomes with cautery-free neurovascular bundle preservation with robotic laparoscopic radical prostatectomy.

PURPOSE: To report short-term potency outcomes with a cautery-free technique (CFT) to preserve the neurovascular bundles (NVB) during robotic laparoscopic radical prostatectomy (LRP). PATIENTS AND METHODS: All men were <66 years of age and had a Sexual Health Inventory in Men (SHIM) score of 22 to 25. They underwent unilateral or bilateral dissections. Group 1 (N = 23), the study group, had preservation of the NVB with CFT. Group 2 (N = 36) had traditional dissection using bipolar cautery. Data were collected prospectively via validated questionnaires. Potency was defined as an erection adequate for vaginal penetration. RESULTS: At 3 months, 10 patients (43%) in the CFT group reported potency versus just 3 (8.3%) in the bipolar-cautery group (P = 0.003). Additionally, only 2 (18%) of those having CFT reported zero penile fullness compared with 15 (68%) in the bipolar-cautery group (P = 0.01). CONCLUSIONS: The technique of controlling the vascular pedicle of the prostate and dissecting the NVB without cautery produced significant improvement in potency outcomes at just 3 months.

Adult↗
PubMed2000

Origin of metallic particles resembling microcalcifications on mammograms after use of abrasive cautery-tip cleaning pads during breast surgery: experimental demonstration.

PURPOSE: To determine if the act of cleaning a cautery tip with an abrasive pad dislodges radiopaque particles that can be transferred to breast tissue during surgery, thereby mimicking microcalcifications at mammography. MATERIALS AND METHODS: Mock breast surgery was performed by cauterizing bovine liver or fresh, normal, human breast tissue. The cautery tip was rubbed against a cleaning pad five to 20 times in the manner used intraoperatively and was touched on separate breast tissue specimens two to six times. Specimen radiography was then performed. Thirty-six breast specimens were used in three experiments, including 28 used for the experimental conditions and eight control specimens. RESULTS: Particles collected from the cleaning pads resembled microcalcifications. After cauterization of liver, breast tissue, or both, in series, particles transferred from the cautery tip to breast tissue specimens could be identified on specimen radiographs. Transfer of particles after cautery of breast tissue occurred with increased numbers of rubs and specimen contacts. CONCLUSION: Radiopaque aluminum oxide particles from abrasive cautery-tip cleaning pads can be dislodged and transferred to breast tissue during surgery. Scrutiny of high-detail, spot-compression, magnification mammograms will help identify these particles. Simple measures to mitigate particle transfer during breast surgery can prevent this problem and obviate a potential second procedure to remove particles mistaken for microcalcifications.

Aluminum Oxide↗
PubMed1988

The effect of scleral cautery on corneal astigmatism in cadaver eyes.

We studied the effect of scleral cautery on corneal astigmatism in 20 cadaver eyes using the Zeiss wetfield bipolar cautery either at or 2 mm posterior to the corneoscleral limbus. The chord of cauterized area was set at either 5.5 or 11 mm. Cautery induced net corneal steepening along the meridian of the cauterized area, and induced the greatest astigmatism when applied at the limbus. At each location the 11-mm cautery application induced less astigmatism. The majority of the astigmatic change occurred within the first 5 to 10 seconds of application. We found that scleral cautery at or 2 mm posterior to the limbus can induce extensive corneal astigmatism.

Astigmatism↗
PubMed2004

Effectiveness of vasectomy using cautery.

BACKGROUND: Little evidence supports the use of any one vas occlusion method. Data from a number of studies now suggest that there are differences in effectiveness among different occlusion methods. The main objectives of this study were to estimate the effectiveness of vasectomy by cautery and to describe the trends in sperm counts after cautery vasectomy. Other objectives were to estimate time and number of ejaculations to success and to determine the predictive value of success at 12 weeks for final status at 24 weeks. METHODS: A prospective, non-comparative observational study was conducted between November 2001 and June 2002 at 4 centers in Brazil, Canada, the UK, and the US. Four hundred men who chose vasectomy were enrolled and followed for 6 months. Sites used their usual cautery vasectomy technique. Earlier and more frequent than normal semen analyses (2, 5, 8, 12, 16, 20, and 24 weeks after vasectomy) were performed. Planned outcomes included effectiveness (early failure based on semen analysis), trends in sperm counts, time and number of ejaculations to success, predictive value of success at 12 weeks for the outcome at 24 weeks, and safety evaluation. RESULTS: A total of 364 (91%) participants completed follow-up. The overall failure rate based on semen analysis was 0.8% (95% confidence interval 0.2, 2.3). By 12 weeks 96.4% of participants showed azoospermia or severe oligozoospermia (< 100,000 sperm/mL). The predictive value of a single severely oligozoospermia sample at 12 weeks for vasectomy success at the end of the study was 99.7%. One serious unrelated adverse event and no pregnancies were reported. CONCLUSION: Cautery is a very effective method for occluding the vas. Failure based on semen analysis is rare. In settings where semen analysis is not practical, using 12 weeks as a guideline for when men can rely on their vasectomy should lessen the risk of failure compared to using a guideline of 20 ejaculations after vasectomy.

Adult↗
PubMed1999

New simple technique for hepatic parenchymal resection using a Cavitron Ultrasonic Surgical Aspirator and bipolar cautery equipped with a channel for water dripping.

We have developed a new technique to resect hepatic parenchyma without inflow occlusion by using the Cavitron Ultrasonic Surgical Aspirator (CUSA) and bipolar cautery with a saline irrigation system. The significance of this method in hepatectomy was analyzed in comparison with historical control of hepatectomy using Pringle's maneuver. An ordinary bipolar cautery was remodeled with an infusion line to bring saline droplets down the inner surface of one arm of the tweezers through an opening about 1.5 cm proximal to its tip. The optimal flow rate of saline was approximately one drop per second. The power of bipolar cautery was adjusted to 50 watts. When the tweezer blades were approximated to 1 or 2 mm, saline droplets were directed to the tip of tweezers and could be immediately evaporated. After sonicating parenchymal cells, the tissue of small branches of Glisson's tree or small tributaries of the hepatic vein were coagulated by bipolar cautery. The coagulated cords were then easily cut by scissors. The impact of this technique on ordinary liver resections was evaluated by analyzing the postoperative clinical course in relation to the hepatic functional reserve necessary for major hepatectomy, duration of hepatectomy, and intraoperative blood loss. Hepatic resection without vascular occlusion using this technique could decrease the morbidity in patients who have less hepatic functional reserve. It could also decrease intraoperative blood loss. This new technique effectively decreased the surgical load of the remnant liver during parenchymal resection by avoiding ischemic stress. Consequently it extends the safety limits of major hepatectomy.

Electrocoagulation↗
PubMed1993

Fluoroscopically guided incision of ureteral strictures in pigs with the cautery-wire balloon catheter: a phase 1 study.

We investigated a catheter that can longitudinally incise ureteral strictures under fluoroscopic guidance without the need for ureteroscopy and its attendant risks. The catheter consists of a low-pressure balloon and an overlying cautery wire; the balloon allows precise localization of the stricture, seen as a waist in the balloon, and the overlying cautery wire can be fluoroscopically oriented at the stricture. One to two centimeter ureteral strictures were created in 6 swine. Two to four weeks later strictures were incised in a retrograde or antegrade fashion with the cautery-wire balloon catheter, and double J stents placed for a duration of three weeks. In 5 of 6 renal units strictures improved anatomically with resolution of hydronephrosis at 3 to 4 months' follow-up. Urodynamic absence of obstruction was verified by Whitaker testing. In one animal, the tip of the catheter dislodged in the ureter with subsequent loss of the renal unit. The engineering error that lead to this complication has since been rectified. With correction of the aforementioned problem, this Phase 1 study has demonstrated the feasibility, safety and preliminary efficacy of the cautery-wire balloon catheter for endourologic management of ureteral strictures.

Animals↗
PubMed2006

Sub-Tenon anaesthesia: reduction in subconjunctival haemorrhage with controlled bipolar conjunctival cautery.

PURPOSE: To evaluate the effect of controlled conjunctival cautery on the frequency and extent of subconjunctival haemorrhage (SCH) associated with sub-Tenon anaesthetic (STA) injection in patients with various clotting states. METHODS: One hundred forty-four patients suitable for cataract surgery with STA were prospectively divided into four groups: group A (n=36) were on warfarin (INR 1.8-4.2); group B (n=48) on aspirin (75 mg); group C (n=12) on clopidogrel (75 mg); and group D (n=48) on no anticoagulant or antiplatelet agents. All patients had no other known coagulopathy. Each group was randomly divided into two subgroups, one of which received localised bipolar cautery under microscope control to the STA conjunctival entry site before tissue dissection, whereas the other served as a control. chi(2) and Fisher's exact tests were used to analyse the data with the SPSS package (v11.0). RESULTS: Conjunctival cautery reduced the frequency of SCH from 67 to 6% in group A (P=0.0001); from 37.5 to 4% in group B (P=0.005); from 50 to 0% in group C (P=0.9); and from 17 to 0% in group D (P=0.55). This overall reduction in SCH was highly significant (P<0.0001), especially in groups A and B. No statistically significant reduction in the extent of SCH was found. CONCLUSIONS: Controlled localised bipolar conjunctival cautery before STA injection may significantly reduce the frequency of SCH, especially in patients on warfarin or aspirin.

Aged↗
PubMed1991

Argon laser versus thermal cautery for punctal occlusion. An animal study.

A subset of the dry-eye patient group manifests their problem so severely that permanent punctal occlusion is required. The technique most often used today is thermal cautery. In this prospective study, an animal model was developed, and the effectiveness of the argon laser as a primary alternative therapy to thermal cautery was evaluated. Dogs were found to have a punctum similar in shape and location to humans; therefore, they were deemed to be a more appropriate animal model for punctal studies than cats. Both laser and thermal cautery are similarly effective in completely occluding puncta in animals. There was a trend toward greater stenosis with the laser in those puncta that were only partially occluded. In addition, laser punctal occlusion appeared to be less painful than thermal cautery.

Animals↗
PubMed1993

Diagnostic and therapeutic conization using loop radiothermal cautery.

A group of 173 patients with abnormal cervical cytology underwent diagnostic or therapeutic conization following colposcopic examination. The series includes 23 patients with cold knife conization in the hospital under general anesthesia, 12 patients with an outpatient KTP laser procedure under local anesthesia, 53 patients with an outpatient CO2 laser procedure under local anesthesia, 10 patients with hospital-based loop radiothermal cautery conization and 75 patients with loop radiothermal cautery conization in the office under local anesthesia. Loop radiothermal cautery conization was advantageous, with a shorter duration of surgery, lower cost, reduced operative bleeding, less of a need for pain-relieving medication and shorter duration of postoperative disability. Cold knife conization patients had the most intraoperative bleeding and the longest hospitalization. KTP laser conization produced specimens of inferior quality, resulting in the least satisfactory histologic diagnosis. Office-based loop radiothermal cautery conization may be preferable to other methods of conization in the diagnosis and management of squamous intraepithelial lesions.

Colposcopy↗
PubMed2005

Eyelid splitting with follicular extirpation using a monopolar cautery for the treatment of trichiasis and distichiasis.

PURPOSE: To assess the efficacy of eyelid splitting coupled with follicular extirpation via monopolar cautery in the treatment of trichiasis and distichiasis. METHODS: Between March 2000 and October 2003, this surgery was performed on 52 eyelids from 45 patients, with a mean follow-up period of 14.3 months (ranging from 12.3 to 17.6 months) . Under local anesthesia and a surgical microscope, a chalazion clamp is positioned on the eyelid, and a no. 11 scalpel is employed to make an incision located immediately anterior and parallel to the abnormal eyelash line. Each of the abnormal hair follicles is then removed via cautery with a monopolar needle. No sutures are involved in this procedure. RESULTS: Forty-four eyelids of 40 patients (84.6%) were successfully treated without recurrence or any residual symptoms. Repeat surgery was then performed on eight eyelids, with successful results in six cases. The cumulative success rate for this procedure was 96.1%. No complications were noted in the treated area, including lid deformities, granuloma formation, infections, and others. CONCLUSIONS: Eyelid splitting coupled with follicular extirpation via cautery with a monopolar needle, a procedure which requires no sutures, constitutes a simple and effective method for the treatment of both trichiasis and distichiasis and is associated with favorable functional and cosmetic results.

Adolescent↗
PubMed1993

A prospective, randomized comparison of thermal cautery and argon laser for permanent punctal occlusion.

Permanent punctal occlusion was performed by two techniques on 27 patients (73 puncta). Patients were randomly assigned to be treated with either thermal cautery or argon laser for keratitis sicca. Follow-up assessment disclosed that the puncta to which thermal cautery was applied remained closed significantly longer than those to which laser treatment was applied (P < .05, log-rank test). Using time to recanalization of a punctum as the end point, we found a long-term advantage of thermal cautery over argon laser treatment.

Cautery↗
PubMed2005

Two-surgeon technique for hepatic parenchymal transection of the noncirrhotic liver using saline-linked cautery and ultrasonic dissection.

OBJECTIVE: The purpose of this study was to analyze our experience with saline-linked cautery in hepatic surgery. SUMMARY BACKGROUND DATA: Safe and efficient hepatic parenchymal transection is predicated on the ability to simultaneously address 2 tasks: parenchymal dissection and hemostasis. To date, no single instrument has been designed that addresses both of these tasks. Saline-linked cautery is now widely used in liver surgery and is reported to decrease blood loss during liver transection, but data on its exact benefits are lacking. METHODS: From a single institution, prospective liver surgery database, we identified 32 consecutive patients with noncirrhotic livers who underwent resection for primary or metastatic disease using a 2-surgeon technique with saline-linked cautery and ultrasonic dissection (SLC+UD) from December 2002 to January 2004. From the same database, we identified a contemporary and matched set of 32 patients who underwent liver resection with similar indications using ultrasonic dissection alone (UD alone). Operative and anesthetic variables were retrospectively analyzed to identify differences between the 2 groups. RESULTS: The 2 groups were equivalent in terms of age, gender, tumor histology, tumor number, and tumor size. The UD+SLC group had a decreased duration of inflow occlusion (20 minutes versus 30 minutes, P = 0.01), blood loss (150 mL versus 250 mL, P = 0.034), and operative time (187 minutes versus 211 minutes, P = 0.027). Postoperative liver function and complication rates were similar in each group. CONCLUSIONS: The 2-surgeon technique for liver parenchymal transection using SLC and UD in noncirrhotic livers is safe and may provide advantages over other techniques.

Adolescent↗
PubMed1985

A microbipolar cautery for use in the middle ear.

This delicate microscopic bipolar forceps allows very precise cautery without significant current flow to adjacent tissue. Wet-field cautery is possible; it prevents overheating of adjacent tissue. This forceps is relatively inexpensive and utilizes a standard bipolar cautery unit and cord.

Cautery↗
PubMed1999

Complications of retrograde balloon cautery endopyelotomy.

PURPOSE: Adult ureteropelvic junction obstruction is increasingly managed with endoscopic techniques. Retrograde balloon cautery endopyelotomy is quick, requires minimal hospital stay and allows most patients a rapid return to work. The complication rate of retrograde balloon cautery endopyelotomy ranges from 13 to 34%, with vascular injury in 0 to 16% of patients. We report 5 uncommon complications, including 4 vascular injuries, that clinicians should be familiar with when using this technique. MATERIALS AND METHODS: We reviewed 52 retrograde endoscopic endopyelotomy procedures performed during a 5-year period. There were 5 uncommon complications. RESULTS: Accessory lower pole renal artery injuries occurred in 3 patients, 1 of whom presented 12 days after endopyelotomy. Embolization was successfully performed in all 3 cases and none had subsequent hypertension. In 1 case a right ovarian vein laceration was not evident on preoperative or postoperative angiography. Emergency post-embolization abdominal exploration revealed a 2 mm. injury to the right ovarian vein before entering the right renal vein close to the ureteropelvic junction incision. Nephrectomy and ovarian vein ligature were curative. In 1 case the electrocautery wire broke intracorporeally after firing, resulting in a bobby pin-like configuration. Successful removal was accomplished by twisting the catheter and wrapping the wire around the tip, enabling atraumatic removal. CONCLUSIONS: Retrograde balloon cautery endopyelotomy is an emerging technology with potential adverse outcomes. The complications we noted are complex and potentially life threatening. Awareness of these complications may help avoid poor outcomes and expedite appropriate treatment.

Adolescent↗
PubMed2001

Tonsillectomy. A comparative study of dissection/snare vs suction-cautery.

In an optimal situation, a surgical procedure would be one that generates minimal post-operative pain, incurs little or no bleeding, and allows the patient to return to their normal daily activities in the shortest time period. A tonsillectomy is one of the most common operations performed in the world. Various surgical procedures for tonsillectomy are performed with a wide array of opinions to support the pros and cons of each technique. OBJECTIVES/GOALS: To determine if there is a significant difference between two methods of tonsillectomy. METHODS AND MATERIALS: A prospective single blinded randomized control study using (i) A dissection/snare technique, and (ii) A suction-cautery method. Measured outcomes such as blood loss, surgical time, post-op pain, post-op hydration, pyrexia, and the length of time to resume normal daily activities will be assessed. RESULTS: In total, 50 patients were studied, 23 in the dissection/snare technique, and 27 in the suction cautery technique. Inclusion criteria was, the patient must be at least 2 years of age and not older than 16 years of age. Data was collected intra-operatively, at 2 and 4 hour post-op intervals, as well as a 2 week follow-up questionnaire completed by the parents. CONCLUSIONS: The suction cautery group had statistically significant differences in blood loss, surgical time and pain in the immediate post-operative period.

Adolescent↗
PubMed1999

[Clinical study of treatment of epistaxis of little's area by microwave, anterior nasal packing and trichloroacetic acid cautery].

OBJECTIVE: To study the difference and quality of three different kind of treatment methods for epistaxis of Little's area, such as: microwave, anterior packing of nasal cavity and trichloroacetic acid cautery. METHOD: The cases were divided into three group. The state of bleeding, reaction of after-treatment and recurrence were recorded and analysed. RESULT: Comparing with the anterior nasal packing and trichloroacetic acid cautery, the microwave is characteristic by thorough stop-bleeding, light reaction, less recurrence. CONCLUSION: Microwave is an ideal way to treat epistaxis of Little's area. The patient's reaction is mild and less the clinical effects is obviously better than the anterior packing of nasal cavity and trichloroacetic acid cautery.

Adolescent↗
PubMed1981

Autoradiographic study of corneal neovascularization induced by chemical cautery.

The corneas of adult rats were cauterized chemically, and the responses of the pericorneal blood vessels and the cellular constituents of the cornea were followed by light microscopic autoradiography after labeling with 3H-thymidine. As in previous experiments, this injury elicited a neovascularization as capillaries sprouted and extended centripetally from the corneoscleral limbus to the cautery site. Chemical cautery induced a response in the epithelium, endothelium, and fibroblasts of the cornea as well as in the vascular cells. Elevated labeling indices for the corneal epithelium and endothelium began at 18 and 21 hours after injury, respectively. In all of these corneal cell types, the labeling index returned to control values by 75 hours. The onset and decline of DNA synthesis in corneal fibroblasts paralleled that of the corneal epithelium and endothelium. Labeling indices of vascular cells (endothelial cells and pericytes) increased 21 hours after injury, reached a maximal level at 45 hours, and returned to control values by 1 month after cautery. The first mitoses in vascular endothelial cells and pericytes were noted 36 hours after injury, and the initial capillary sprouts appeared at 39 hours. This study demonstrates that the thymidine incorporation by cells in the pericorneal blood vessels occurs early within the postcauterization period, at least 15 hours before the first mitotic figures are detected in these same vascular cells. The significance of the temporally related elevations in labeling indices of the vascular cells and the cellular constituents of the corneal cells is uncertain, but there are many potential interrelationships between the controls of cell division and migration for cells of the vessels, epithelium, endothelium, and corneal stroma.

Animals↗