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At least 217 records · Page 12Linked to original sources
PubMed1990

Colposcopic diagnosis and treatment of cervical dysplasia at a single clinic visit. Experience of low-voltage diathermy loop in 1000 patients.

In a study of 1000 women referred over 20 months with abnormal smears and in whom the entire transformation zone could be seen the aim was to test the feasibility of colposcopic assessment and treatment at one visit to the clinic. 897 women needed only one visit. This was achieved by using a modification of the large loop diathermy excision technique and by careful attention to the timing of the clinic visit. 103 required further visits, for the following reasons: incomplete excision on histology and/or subsequently abnormal smear (85), secondary haemorrhage (6), microinvasion or invasive carcinoma (9), biopsy specimens unusable (3). Further treatment was given in 4.1% of the cervical dysplasias. All patients treated in a single visit preferred this approach to the alternative of colposcopic assessment and biopsy followed, after histological examination, by local ablation by laser, excision by loop biopsy technique, or cone biopsy.

Biopsy↗
PubMed2004

Bimanual bipolar diathermy for recurrent hyphema after anterior segment intraocular surgery.

Phacoemulsification with mechanical pupil dilation was performed on a functionally monocular glaucoma patient with pseudoexfoliation syndrome. The postoperative course was complicated by persistent intraocular hemorrhaging from the pupil margin in multiple locations that ceased temporarily with a marked elevation in intraocular pressure (IOP). Normalization of IOP with medication or paracentesis resulted in recurrent bleeding and a subsequent increase in IOP elevation. Surgical intervention using bipolar diathermy was required to control the bleeding and the elevated IOP. A bimanual approach allowed the corrective procedure to be performed in a simple and efficacious manner.

Aged↗
PubMed1984

Endoscopic diathermy obliteration of recurrent tracheoesophageal fistulae.

Recurrence of tracheoesophageal fistula after surgical repair for esophageal atresia occurs in approximately 5% to 15% of cases. Further surgery may be hazardous and mortality rates of up to 50% have been reported. We report two patients in whom successful obliteration of a recurrent fistula has been achieved by diathermy at bronchoscopy. This experience is compared to previous reports of fistula obliteration using tissue adhesives.

Bronchoscopy↗
PubMed1985

Controlled comparison of short-wave diathermy treatment with osteopathic treatment in non-specific low back pain.

The effectiveness of spinal manipulation carried out by a non-medical qualified osteopath was compared with that of short-wave diathermy (SWD) and a placebo (detuned SWD) in 109 patients with low back pain. More than half the subjects in each of the 3 treatment groups benefited immediately from therapy. Significant improvements were observed in the 3 groups at the end of 2 weeks' treatment, and these were still apparent at 12 weeks. The outcome of treatment was unrelated to the initial severity or duration of pain or to the trend of pain towards deterioration or improvement. It is, therefore, unlikely that the results simply reflect the natural history of low back pain. Benefits obtained with osteopathy and SWD in this study may have been achieved through a placebo effect.

Adult↗
PubMed2004

[Video-assisted thoracoscopic sympathectomy for the treatment of facial flushing: ultrasonic scalpel versus diathermy].

OBJECTIVE: To evaluate the advantages of the ultrasonic scalpel compared to electrocoagulation in patients undergoing video-assisted thoracoscopic sympatholysis or sympathectomy for uncontrolled facial blushing. METHODS: Two hundred bilateral video-assisted thoracoscopic procedures to interrupt transmission in the thoracic sympathetic nerve were performed in 100 patients with incapacitating facial blushing. In 2 cases, the video-assisted approach was chosen because of pleural symphysis. The mean age of patients was 34 years (range: 15 to 67). The sympathetic chain was interrupted from the lower portion of the first thoracic ganglion through the third. RESULTS: All patients were discharged within 24 hours with the exception of one on whom an emergency thoracotomy had been performed. No complications were reported in the group in which a harmonic scalpel was used. One case of temporary Horner syndrome (4 months) and 3 cases of persistent chest pain (more than 2 weeks) were reported in the diathermy group. There were 9 cases of partial and asymptomatic pneumothorax that resolved without treatment or prolonged hospital stays. CONCLUSION: Dissection of the sympathetic nerve is accomplished more reliably and with better visualization with the ultrasonic scalpel. Peripheral lesions in lung parenchyma and adjacent tissues (intercostal vessels and nerves) are avoided, as is Horner syndrome, which can be caused by dispersion of heat. Use of the ultrasonic scalpel would also lead to a lower incidence of postoperative neuralgia.

Adolescent↗
PubMed2001

Airway fire due to diathermy during tracheostomy in an intensive care patient.

We describe a case of airway fire in an 83-year-old, critically ill patient. The fire occurred during a surgical tracheostomy under general anaesthesia, following ignition of the tracheal tube by diathermy. After debridement of the burnt tissue and treatment with intravenous antibiotics and glucocorticoids, the patient's respiratory function worsened initially. The patient eventually recovered without long-term sequelae and was discharged from the intensive care unit. The circumstances of this and other similar incidents are reviewed, as are the suggested methods for preventing this frightening occurrence.

Aged↗
PubMed1998

Suction diathermy adenoidectomy.

This technique uses a combination of monopolar diathermy and suction to perform a controlled resection of the adenoids in a near bloodless field. A clear view of the entire resection is obtained with a mirror. There is minimal blood loss and postoperative haemorrhage rate is extremely low. The authors describe the technique used and discuss their experience.

Adenoidectomy↗
PubMed2001

Use of a computer-controlled bipolar diathermy system in radical prostatectomies and other open urological surgery.

BACKGROUND: Ligasure is a computer-controlled bipolar diathermy system, designed to optimally seal vessels < or = 7 mm in diameter. The aim of the present study was to evaluate its application to open urological surgery. METHODS: The Ligasure device was used in 32 consecutive open surgical cases, including 25 radical prostatectomies, five radical nephrectomies, one partial nephrectomy and one nephro-ureterectomy. All procedures were performed using standard surgical techniques, with the exception that the Ligasure device was used for haemostasis. This included pelvic lymphatics and prostatic, adrenal, gonadal and aberrant obturator vessels, as well as vessels associated with the ureter, vasa, seminal vesicles, peri-renal fat, peritoneum and peri-adrenal tissues. Vessels > 7 mm in diameter, such as the renal artery, were ligated. In no patients were haemostatic clips used. RESULTS: In all procedures, vessels and other structures < 7 mm were successfully sealed using the Ligasure device. For some structures, such as the prostatic pedicles and the seminal vesicles, the Ligasure device was much easier to apply than haemostatic clips. Use of the Ligasure device reduced the operating time (mean: 113 min vs 135.5 min; P < 0.001) and blood loss (mean: 529 mL vs 642 mL; P < 0.02) for radical prostatectomies. No intraoperative or postoperative blood transfusions were required. There were no postoperative haemorrhages, lymph leakage or lymphocoeles. Median inpatient hospital stay was 7 days (range: 6-9 days) and no patients required readmission. CONCLUSION: The Ligasure, device was safe and easy to use in major urological procedures.

Aged↗
PubMed2003

Characteristics predictive of response to ovarian diathermy in women with polycystic ovarian syndrome.

OBJECTIVE AND STUDY DESIGN: Ovarian needle diathermy was used in the treatment of clomiphene-resistant polycystic ovarian syndrome (PCOS). Factors predictive of pregnancy in our study group included younger age, lower body weight, and surgery before 1998. RESULTS AND CONCLUSION: Insulin resistance and adhesions at surgery were negatively associated with pregnancy. Sixty-six percent of the study group cycled spontaneously after surgery and 50% became pregnant.

Adult↗
PubMed1999

Effect of submucosal diathermy to the inferior turbinates on unilateral and total nasal airflow in patients with rhinitis.

The efficacy of the controversial treatment of submucosal diathermy to the inferior turbinates (SMDIT) was evaluated objectively. Twenty-seven patients with chronic rhinitis were investigated by hourly posterior rhinomanometry to assess changes in total and minimum (Fmin) and maximum (Fmax) unilateral nasal airflow over 5 h, before and 2-3 months after standardized SMDIT treatment. Nasal airflow was recorded at a sample pressure of 75 Pa and the results are reported as medians with interquartile range. Whilst SMDIT caused a significant 51% increase (p < 0.0001) in total nasal airflow from 246 cm3/s (131) to 371 cm3/s (133) the changes in unilateral airflow provided further evidence which strongly supported the benefits of this operation. Unilateral Fmin significantly increased by 136% (p < 0.0001) from 69 cm3/s (82) to 163 cm3/s (74) and Fmax significantly increased by 23% (p < 0.0001) from 171 cm3/s (74) to 211 cm3/s (59). The effect of surgery was to "splint" to the turbinate in a state of relative vasoconstriction. Our findings therefore provide functional evidence of submucosal fibrosis following SMDIT. The greater percentage change in unilateral Fmin suggests that this parameter is a more sensitive index of the effect of nasal surgery than total nasal airflow measurements. The importance of considering the nose as two separate airways in the evaluation of nasal treatments is emphasized.

Adolescent↗
PubMed2006

Efficacy of laparoscopic ovarian diathermy in clomiphene citrate-resistant women with polycystic ovary syndrome: relationships with chronological and ovarian age.

BACKGROUND: Laparoscopic ovarian diathermy (LOD) has been used successfully as a first-, second- and third-line treatment for ovulation induction in women with polycystic ovary syndrome (PCOS). However, little is known about the predictors for LOD efficacy. The aim of the present study was to evaluate reproductive outcomes in clomiphene citrate (CC)-resistant PCOS patients treated with LOD according to ovarian and chronological age. METHOD: A total of 60 non-obese, primary infertile, CC-resistant women with PCOS were enrolled and treated with LOD. During the following 6 months, all patients underwent ovulation monitoring and timed intercourse. If spontaneous ovulation did not occur within 3 months from surgery, CC (100 mg/day) was administered for 5 days from day 3 of the remaining cycles. The ovulation, abortion and pregnancy rates were assessed and analyzed with patients categorized according to chronological age (group A, <25 years; group B, 25-30 years; group C, 30-35 years; group D, >35 years) and ovarian age (group 1, follicle stimulating hormone (FSH) < 10 mIU/ml; group 2, FSH > 10 mIU/ml). RESULTS: At the end of the study, total ovulation, pregnancy and abortion rates were 57.1, 13.0 and 18.2%, respectively. No difference in all reproductive outcomes was observed between groups A, B and C, whereas the efficacy of LOD was significantly lower in group D. A significant difference in all clinical endpoints was detected between groups 1 and 2. CONCLUSIONS: Our data show that chronological age >35 years and basal FSH value > 10 mIU/ml are related to poor reproductive prognosis in CC-resistant PCOS patients treated with LOD.

Abortion, Spontaneous↗
PubMed1981

An evaluation of microwave diathermy applicators using free space electric field mapping.

An electric field mapping study is described which was designed and executed to study the performance characteristics of various prototype and currently used microwave diathermy applicators operating at 2450 MHZ. A miniature diode detector/dipole probe, developed by the Bureau of Radiological Health, was used to map the 'near' electric fields in the aperture plane of each applicator. From the field mapping results, parameters for use in the evaluation of the radiation safety of various applicators are developed. A thermographic camera was used to determine heating characteristics of the applicators in simulated biological material. The thermal effectiveness of these applicators was also investigated by determining their Specific Absorption Rate, a recently developed parameter. The superiority of a specially designed prototype applicator (in terms of uniformity and effectiveness of energy deposition, and minimal leakage radiation) compared with currently used applicators is demonstrated.

Diathermy↗
PubMed1983

Assessment of a small microwave (2450 MHz) diathermy applicator as suitable for hyperthermia.

Temperature profiles and depth data have been measured in three different tissue-type phantoms to assess the induced thermal patterns from a modified diathermy applicator with no allowance made for blood flow. Results indicate that tumours up to 50 mm in diameter and 30 mm deep may be therapeutically heated. Increasing the fat thickness has been shown, by these phantom studies, to indicate the need for careful regulation of the surface temperature to reduce large thermal gradients at depth. Field mapping outside the treatment area showed no significant exposure to patient or operator. The applicator is presently being used for a clinical hyperthermia treatment study.

Diathermy↗
PubMed2004

An evaluation of safety guidelines to restrict exposure to stray radiofrequency radiation from short-wave diathermy units.

Short-wave diathermy (SWD), a form of radiofrequency radiation used therapeutically by physiotherapists, may be applied in continuous (CSWD) or pulsed (PSWD) mode using either capacitive or inductive methods. Stray radiation emitted by these units may exceed exposure guidelines close to the equipment. Discrepant guidelines exist on a safe distance from an operating unit for operators and other personnel. Stray electric (E-field) and magnetic (H-field) field strengths from 10 SWD units in six departments were examined using a PMM 8053 meter and two isotropic probes (EP-330, HP-032). A 5 l saline phantom completed the patient circuit. Measurements were recorded in eight directions between 0.5 m and 2 m at hip and eye levels while the units operated at maximum output and data compared to current guidelines. Results found stray fields from capacitive CSWD fell below operator limits at 2 m (E-field 4.8-39.8 V/m; H-field 0.015-0.072 A/m) and at 1 m for inductive CSWD (E-field 0-36 V/m; H-field 0.01-0.065 A/m). Capacitive PSWD fields fell below the limits at 1.5 m (E-field 1.2-19.9 V/m; H-field 0.002-0.045 A/m) and at 1m for inductive PSWD (E-field 0.74.0 V/m; H-field 0.009-0.03 A/m). An extra 0.5 m was required before fields fell below the guidelines for other personnel. These results demonstrate, under a worst case scenario, emissions from SWD exceed the guidelines for operators at distances currently recommended as safe. Future guidelines should include recommendations for personnel other than physiotherapists.

Diathermy↗
PubMed1990

An evaluation of radiofrequency exposure from therapeutic diathermy equipment in the light of current recommendations.

Shortwave and microwave diathermy equipment use by physiotherapy departments in Grampian Region has been studied. Stray electric and magnetic fields close to equipment have been measured and compared with exposure levels recommended by the INIRC and the NRPB. Fields above the recommended whole body levels extend to 0.5-1.0 m from the electrodes and cables for continuous wave (cw) shortwave equipment, and up to 0.5 m for microwave units and pulsed shortwave models. Operators were exposed to local fields above these values for 2 - 3 min during cw shortwave treatments, but rarely exceeded the recommended exposure. However, short localised exposures to high fields, which can occur if the operator moves close to the electrodes or cables, could exceed these limits. Physiotherapists are advised to remain at a distance of at least 1 m during cw treatments, and not to approach within 0.5 m of the electrodes and cables even for a short period.

Diathermy↗
PubMed1981

Exposure of physiotherapists to microwave radiation during microwave diathermy treatment.

Power density was measured during several microwave diathermy treatment sessions in order to determine levels to which the physiotherapist might be exposed during normal practice. Measurements were made at a distance of 30 cm from the patient. In half the cases investigated readings were less than 10 mW cm-2, the maximum permissible level for continuous exposure during an 8-hour working day. In the other cases levels exceeded 10 mW cm-2 at some sites. The results indicate that physiotherapists are unlikely to be exposed to radiation levels which would be considered harmful, provided reasonable care is taken.

Diathermy↗