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 ?
Hemolymph protein concentration was significantly (P < 0.05) lower in the ablated group (628 [+ or -] 59 mg/mL) than in the unablated group (1,833 [+ or -] 74 mg/mL) during premolt in the reproductive stage (Fig.
The treated tumors were considered as “completely ablated” when no sign of enhancement was present at the site of the ablated lesions.
Temperature distributions of perpendicular fiber bundles showed that the highest temperature situated at the edge of the fiber top surface, which made the fiber bundle ablated gradually from vertical surface to the center and eventually led to the needle-like microstructure.
Moreover, they both allow achieving real-time imaging results, which are related to the morphology of the variations occurring in the ablated tissue.
The mechanical results (see figure 18), show a dependence on which side has been ablated. The toughness and maximum pull force has been the highest for the joint with the mate side ablated.
Sham Trigger-hairs ablations P-VALUE None ablated (OPERATIONAL (ONE-WAY (CONTROL) (EXPERIMENTAL) CONTROL) ANOVA) Drop jump speed 1.1 (0.5) 1.1 (0.5) 1.2 (0.5) 0.56 (m/s) Drop jump angle 1.0 (0.3) 1.1 (0.3) 1.1 (0.3) 0.54 (radians) Drop jump max 4.2 (2.5) 4.0 (2.2) 4.7 (2.9) 0.88 height (cm) Wedge jump 1.2 (0.5) 1.2 (0.6) 0.6 (0.2) 0.33 speed (m/s) Wedge jump max 2.0 (1.3) 1.9 (1.4) 1.3 (0.1) 0.50 height (cm)
In this study, UF type and T2WI signal intensity all significantly affected the therapeutic effects of HIFUA (Pless than 0.05), and UFs were ablated optimally at low signal intensity.
It is consistent with the reformation of graphite sheets after being ablated from graphite pellets.
It was interesting to find that some sub-spot holes are formed at the bottom of some ablated crater under the certain situations.
Examination of the microstructures of the conventional casting and ablated component revealed the presence of silicon carbide and graphite particles at cell or dendrite boundaries, which is evidence that both the particulate reinforcements were pushed by growing aluminum dendrites into the solute-rich final freezing zones.
* The cooler is specifically designed to operate in restricted spaces and is ideal for cooling small samples and laser ablated materials, as well as for medical applications.
Okumura and Aida (2001) observed that the duration of ovarian development was reduced on bilaterally ablated M.