Mintek Pacemaker LV-T Manuale Utente

86  Stratos LV/LV-T Technical Manual   

•  Upper basic rate 
• Tachycardia 

mode 

• Tachycardia 

behavior 

• Mode 

Switching 

• PMT 

Management 

•  Preventive Overdrive Pacing 
• Post-AES 

Pacing 

 

In atrial-controlled dual chamber modes, the upper tracking 
interval (UTI), along with the atrial refractory period or PMT 
protection window limits the ventricular pacing rate such that it 
will never exceed the programmed upper rate regardless of the 
patient's atrial rate.  

In all triggered modes, the upper tracking interval limits the 
pacing rate that is triggered by sensing.  

Select the upper rate based upon the patient’s tolerance for 
the rate.  The upper rate limit determines the minimal interval 
between a sense or pace event and the subsequent atrial or 
ventricular pacing event.  A shortening of the pacing interval 
to the upper rate interval may also be initiated at rest (e.g., 
by detection of muscle potentials).  Therefore, for patients 
with increased vulnerability a lower programmed upper rate 
is recommended. 

 

Wenckebach behavior or 2:1 behavior is available depending on 
the programming of the atrial refractory period, the PMT 
protection window and the upper tracking interval in the modes 
DDD, DDT/A, VDD, DDT and VDT.