| 词汇 | 心室 |
| 释义 | 心室 DTI has distinct value in assessing ventricular function in CRF patients. EBR implants a second receiver device in the left ventricle, meaning that the same ultrasonic controller can pace both ventricles without the need for any leads. Ventricular fibrillation basically causes the ventricles lower chambers of the heart to vibrate in a way that hampers their ability to deliver blood to the body. When the heart contracts, the chambers become smaller, forcing blood first out of the atria into the ventricles, then from each ventricle into a large blood vessel connected to the top of the heart. Possible effects range from minor changes in heartbeat to an increase in the risk of abnormal heart rhythms arrhythmia that might be life- threatening such as ventricular fibrillation. Objective To diagnose the left ventricular diastolic function with anterior wall myocardial infarctionAMI using Dopper tissue image DTI. So when the atria contract, the valves sandwiched between the atria and the ventricles open, and the blood in each atrium flows through its respective valve down into a ventricle. They had a3.5- fold improvement in the amount of blood in their heart, plus a larger capacity in their left ventricles. That device is the ventricular- peritoneal shunt, a tube that drains excess cerebrospinal fluid into the peritoneal cavity. This is connected via a sealing valve to the larger, more powerful lower chamber, or ventricle. The researchers discovered that variation in the gene SCN10A was associated with slow and irregular heart rhythms, including risk of ventricular fibrillation. Over half of these deaths are sudden and caused by serious heart rhythm disturbances such as ventricular fibrillation, a short circuit in the heart which can cause it to stop. Ventricular late potential VLP has been studied with esophageal lead systemELS and body surface lead systemBLS in12 patients after radiofrequency ablation RFA. There's another form of cardio that works much the same way, though it affects the emotional heart rather than the one made of auricles and ventricles. By this time, the heart's electrical signal has passed from the atria into the ventricles, so while the atria relax, the ventricles contract. His device, made from plastic and titanium, is the same size as a human heart but with five chambers arranged like the layers of an onion. The left ventricle pumps most forcefully, which is why a person's heartbeat is felt more on the left side of the chest. By inserting electrodes into one or more of the chambers of the heart, via a large vein, it is possible to mimic its function by applying small electrical shocks at regular intervals. SPECT and UCG were used to study left ventricular function in21 elderly coronary heart disease patients and18 healthy elders of a group at similar age. The blow to the chest can trigger ventricular fibrillation if the blow strikes at exactly the wrong time in the heart's electrical cycle. It may also cause the walls of your left ventricle to become stiff and thick, which can change how electrical impulses travel through your heart. An electrical wave traverses the heart each time it beats, co-ordinating the contraction and relaxation of the chambers that pump blood around the body. |
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