Acute renal failure with severe loin pain and patchy renal ischemia after anaerobic exercise

Table 5 Comparison of characteristics in acute renal failure with severe loin pain and patchy renal ischemia after anaerobic exercise with and without renal hypouricemia, n (%)

	Renal hypouricemia, this cases	Renal hypouricemia, Ishikawa[32], 2014	No renal hypouricemia, this cases	No renal hypouricemia, Ishikawa[32], 2014
Number of patients	31	148	26	94
Age (yr) median	18 (11-65)	18 (15-25)	21 (13-49)	19 (16-26)
Sex (male)	28/31 (90)	136/148 (92)	24/26 (92)	82/92 (89)
Fever	7/31 (23)	35/43 (81)	12/26 (46)	35/49 (71)
Nausea/vomiting	22/31 (71)	106/107 (99)	14/26 (54)	63/66 (95)
Serum CK on admission (IU/L)	155 (44-1182), N = 26	212 (100-447), N = 81	225 (38-686), N = 21	317 (124-696), N = 70
Serum creatinine on admission (mg/dL)	4.2 (1.1-8.9), N = 30	4.3 (2.6-6.7), N = 122	4.7 (1.4-7.6), N = 26	3.2 (2-5.1), N = 75
Kidney CT patchy findings	9/15 (60)	31/32 (97)	23/25 (92)	56/58 (97)
Hemodialysis	7/29 (24)	46/148 (31)	2/25 (8)	16/94 (17)
Recurrence of ALPE	11/28 (39)	38/148 (26)	3/26 (12)	7/94 (7)
Days of renal failure improvement (d)	17 (6-30), N = 26	14 (10-19), N = 85	15 (5-22), N = 10	10 (7-16), N = 66

Values are expressed with median with (range) or the number of positive cases with (percent). ALPE: Acute renal failure with severe loin pain and patchy renal ischemia after anaerobic exercise; CK: Creatinine kinase; CT: Computed Tomography; N: Number of patients.