Close
  Indian J Med Microbiol
 

Figure 6: (a) Preoperative patient with significant orthostatic hypotension-increase in HR of 35–40 beats/min. HR >130bpm signifying parasympathetic baroreceptor failure (excessive HR rise) as per “VASIS” classification, (b) improvement in OST during follow-up with HR <120bpm, (c) another patient with “mixed” type I picture suggesting sympathovagal imbalance. An initial phase of blunted/reverse response and bradycardia followed by resurgence (in 1st 20 sec) to a higher baseline, d) follow-up period - minimal improvement. HR - Heart rate

Figure 6: (a) Preoperative patient with significant orthostatic hypotension-increase in HR of 35–40 beats/min. HR >130bpm signifying parasympathetic baroreceptor failure (excessive HR rise) as per “VASIS” classification, (b) improvement in OST during follow-up with HR <120bpm, (c) another patient with “mixed” type I picture suggesting sympathovagal imbalance. An initial phase of blunted/reverse response and bradycardia followed by resurgence (in 1<sup>st</sup> 20 sec) to a higher baseline, d) follow-up period - minimal improvement. HR - Heart rate