ablation


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ablation

 [ab-la´shun]
1. separation or detachment; extirpation; eradication.
2. removal, especially by cutting with a laser or electrocautery.
catheter ablation radiofrequency ablation.
endometrial ablation removal of the endometrium; methods used include radiofrequency, electrical energy, lasers, and hot and cold liquids.
radiofrequency ablation (radiofrequency catheter ablation) destruction of an accessory conduction pathway or other troublesome area of dysrhythmia by means of unmodulated high frequency alternating current delivered by a bipolar or unipolar catheter. The current causes heat with tissue destruction and formation of scar tissue to block the pathway or dysrhythmic area. Transvenous radiofrequency ablation has been successful in treatment of supraventricular tachycardia and is an attractive option to surgery. Called also catheter ablation.

ab·la·tion

(ab-lā'shŭn), This word denotes complete removal or extinction, not merely mitigation or reduction.
Removal of a body part or the destruction of its function, as by a surgical procedure or morbid process, or the presence or application of a noxious substance.
[L. see ablate]

ablation

(ă-blā′shən)
n.
1. Surgical excision or amputation of a body part or tissue.
2. The erosive processes by which a glacier is reduced.
3. Aerospace
a. The dissipation of heat generated by atmospheric friction, especially in the atmospheric reentry of a spacecraft or missile, by means of a melting heat shield.
b. The reduction or removal of heat-protective surface material by aerodynamic friction, as from a heat shield.

ab·la′tor n.

Ablation

Cardiology Ablation therapy The destruction, isolation or removal of an endocardial region linked to a particular arrhythmia.
Indications Atrial flutter/fibrillation, AV nodal reentry, AV reentry, ventricular reentry
Endocrinology The pharmacologic or surgical elimination of hormone-producing tissue
Gynaecology The stripping out of a tissue—e.g., epithelium of the uterine cervix or endometrium
Surgery Removal, excision

ablation

Cardiology Ablation therapy The destruction, isolation or removal of an endometrial region linked to a particular arrhythmia Indications Atrial flutter/fibrillation, AV nodal reentry, AV reentry, ventricular reentry. See Balloon ablation, Radiofrequency catheter ablation Endocrinology The pharmacologic or surgical elimination of hormone-producing tissue. See Androgen ablation, Endometrial ablation Gynecology The stripping out of a tissue. See Cryoablation, Endometrial ablation Medtalk Removal, excision Surgery Removal, excision.

ab·la·tion

(ab-lā'shŭn)
Removal of a body part or the destruction of its function, as by a surgical procedure, morbid process, or noxious substance.

ablation

Deliberate removal or separation, especially by surgery.

ablation

the removal or destruction of any part of an organism.

Ablation

The removal of abnormal tissue growths by surgery.

ablation 

A procedure in which a tissue or body part is removed or destroyed by surgery, radiation or photocoagulation. Example: LASIK.

ab·la·tion

(ab-lā'shŭn)
Removal of a body part or the destruction of its function, procedure or morbid process, or the presence or application of a noxious substance.

Patient discussion about ablation

Q. SVT and AF, Hearts that go fast to slow or any others probs with the beats of any kind and Ablation of hearts I have had Ablation done once and I am still having passing out spells and still on 50mg toprol 2 times a day till two days ago, now I am on 150 to 200 aday again. Its not the first time I have had to up meds. I had ablation down 4/22/05. I can breath better now but but it didnt take it away as you can tell. Now Dr Leonardie would like to do it again . This is the big ????! Will it or can it work 100% this time, or will it hit and miss some again???? MTT

A. Well I can understand the frustration of having to go through this procedure yet another time. There are no guarantees in medicine. You should follow your doctor's advice, as another proceudre might be more helpful than the last one. However you should keep in mind that nothing is for sure.

More discussions about ablation
References in periodicals archive ?
, Radiofrequency Ablation, Laser/Light Ablation, Cryoablation Ablation, Microwave Ablation, Hydrothermal Ablation & Others have been considered for segmenting Ablation Technologies market by type.
Key products segmented in the global EP catheter ablation market are:
The purpose of this study was to determine the exact role of residual thermal energy in MWA and RFA on the final ablation zone and transition zone and investigate whether the additional damaged zone caused by the residual thermal energy could be dissipated by subsequent cooling-circulation after ablation.
"The improvement of cardiovascular outcomes with ablation in patients with heart failure and AFib is consistent across multiple trials, at least with respect to heart failure with reduced ejection fraction" concluded Dr.
Patients are encouraged not to wait too long to undergo ablation, because the procedure is more effective the sooner it is performed after A-fib develops.
The company added that the radiofrequency ablation of soft tissue has been shown in multiple long-term clinical studies to reduce complications and reoperations.
Microwave ablation was performed on outpatient bases with the patient under conscious sedation (intravenous (IV) diazepam 10-20 mg or propofol).
The Rhythmia mapping system possesses several advantages which greatly helped with the ablation of this arrhythmia.
Conclusion: Cardiac electrophysiology studies and radiofrequency catheter ablation were found to be an effective and safe method for diagnosis and treatment of supraventricular tachycardia.
Standard ablation works by heating or cooling small areas of tissue around the pulmonary veins to create a scar that prevents aberrant electrical signals from causing AFib.
AF was induced during the ablation procedure in 7.5% and 21.3% of patients in Group AFl and Group SR, respectively (P = 0.007).
The ablative treatment of tumors larger than 3-4 cm can be challenging due to incomplete ablation. In such cases, ablation of larger tumor volumes may be achieved with MWA.