alternans การใช้

• Electrical alternans with sinus tachycardia is a highly specific sign for large pericardial effusion.
• Similar features between bigeminal pulse and pulsus alternans are strong peak and weak peak.
• However, unlike pulsus alternans, the weak beat in bigeminal pulse occurs prematurely ( early ).
• "' Bigeminal pulse "'is a medical condition, easily confused with pulsus alternans.
• Her electrocardiogram showed small spikes that alternated in shape _ a classic sign of cardiac tamponade called electrical alternans.
• Thus, not followed a pause as it is in pulsus alternans but occurs close to normal strong beat.
• Generally electrical alternans can be seen with tamponade, and narrow AV junctional reenterant tachycardia with an accessory pathway ( such as WPW syndrome ).
• In the Cassadine Plant Beetle, " Chelymorpha alternans ", the female has a complexly coiled spermathecal duct that frequently reverses in direction.
• ""'Raphitoma alternans " "'is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.
• He described a number of herpetological species, such as " Enhydris alternans ", sometimes referred to as " Reuss'water snake ".
• The Cambridge Heart Alternans system then can measure unusual, extremely subtle heartbeat patterns that indicate patients are at risk of ventricular fibrillation, a lethal irregular heartbeat.
• Oscillometric monitors may produce inaccurate readings in patients with heart and circulation problems, which include arteriosclerosis, arrhythmia, preeclampsia, pulsus alternans, and pulsus paradoxus.
• But Cambridge Heart's enhancement essentially creates a super stress test that analyzes T-wave alternans, beat-to-beat electrical fluctuations that measure just a millionth of a volt.
• But in a study of 300 patients who had both the Alternans test and the surgical test, the two proved equivalent, said Dr . Dan Spyker of the Food and Drug Administration.
• A similar phenomenon, pseudo-alternans, can be seen in bigeminal ( premature ventricular contraction ) PVC in the PR interval, alternans pre-excitation, and alternans bundle branch block.
• A similar phenomenon, pseudo-alternans, can be seen in bigeminal ( premature ventricular contraction ) PVC in the PR interval, alternans pre-excitation, and alternans bundle branch block.
• A similar phenomenon, pseudo-alternans, can be seen in bigeminal ( premature ventricular contraction ) PVC in the PR interval, alternans pre-excitation, and alternans bundle branch block.
• Studies suggest that only 18 percent of heart patients detected with problematic T-wave alternans are alive 20 months later, while 95 percent of heart patients without the abnormality live that long, he said.
• Most modern references to TWA refer to "'microvolt T wave alternans "'( MTWA ), a non-invasive heart test that can identify patients who are at increased risk of sudden cardiac death.