Respiration control during cardiac ablation
AssigneeBiosense Webster (Israel) Ltd.
InventorAssaf Govari
Life of this patent
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Abstract
A method for invasive cardiac treatment, including inserting a catheter via a transvascular route into a beating heart of a patient who is anesthetically paralyzed and intubated for ventilation, and, after inserting the catheter, temporarily halting ventilation of the patient. The method includes moving the catheter between a plurality of locations of myocardial tissue of the heart while the ventilation is halted; and ablating the myocardial tissue of the heart at the plurality of locations while the ventilation is halted.
Claims18
A method for invasive cardiac treatment, comprising:
- (a) inserting a catheter via a transvascular route into a beating heart of a patient who is anesthetically paralyzed and intubated for ventilation prior to ablation;
- (b) causing, by a processor of a computing system, ventilation to the patient to increase a level of oxygen in the patient prior to ablation of the patient's myocardial heart tissue;
- (c) monitoring, continuously, by the processor, oxygen and carbon dioxide levels of the patient;
- (d) causing, by the processor, ventilation of the patient to be temporarily halted prior to ablation;
- (e) causing, by the processor, a power source to be activated to ablate myocardial tissue at one or more locations of the heart while the ventilation is temporarily halted and while the monitored oxygen and carbon dioxide levels of the patient are within acceptable limits;
- (f) causing, by the processor, the power source to be deactivated to cease ablation at any of the one or more locations when the monitored oxygen and carbon dioxide levels of the patient are not within acceptable limits;
- (g) resuming, by the processor, ventilation until the monitored levels of oxygen and carbon dioxide are within acceptable limits;
- and (h) repeating, by the processor, steps (c)-(g) until the invasive cardiac treatment is complete.
Apparatus for invasive cardiac treatment, comprising:
- one or more processors;
- and
- a non-transitory computer readable medium storing a plurality of instructions, which when executed, cause the one or more processors to:
- (a) cause a supply of ventilation from a ventilator to a patient to be adjusted to increase a level of oxygen in the patient prior to ablation of the patient's myocardial heart tissue using a catheter that has been inserted via a transvascular route into the heart of the patient,
- (b) cause oxygen and carbon dioxide levels of the patient to be monitored continuously,
- (c) cause ventilation of the patient prior to ablation to be halted temporarily,
- (d) cause a power source to be activated to ablate myocardial tissue at one or more locations of the heart while the ventilation is temporarily halted and while the monitored levels of oxygen and carbon dioxide are within acceptable limits,
- (e) cause the power source to be deactivated to cease ablation at the one or more locations when monitored oxygen and carbon dioxide levels are not within acceptable limits,
- (f) cause ventilation to be resumed until the monitored levels of oxygen and carbon dioxide are within acceptable limits, and
- (g) repeat steps (c)-(f) until the invasive cardiac treatment is complete.
Dependencies are inferred from the claim text.