Unusual Ventilatory Response to Exercise in Patient with Arnold-Chiari Type 1 Malformation after Posterior Fossa Decompression

Table 1

Cardiopulmonary exercise test results.

	Baseline	Anaerobic threshold	VO2 Max
Ventilation
RR	10 BPM	15 BPM	31 BPM
	0.57 L	2.13 L	2.56 L
Ve	5.9 L/min	31.5 L/min	79.9 L/min
SpO2	96%	96%	96%
O2 consumption
VO2 (mL/kg/min)	3.8	22.7	34.6 (78% predicted)
VCO2	210	1671	3403
RER	0.81	1.08	1.43
Cardiac
HR	97 bpm	158 bpm	194 bpm
V/Q
Ve/VCO2	28	19	23
Ve/VO2	23	20	34
PETCO2	45 mmHg	56 mmHg	50 mmHg
PETO2	93 mmHg	91 mmHg	109 mmHg