Risk Factors for Severe Hypocalcemia in Patients with Secondary Hyperparathyroidism after Total Parathyroidectomy

Table 1

The clinical characteristics of the patients who underwent tPTX.

N	1095
Male (n, %)	647 (59.1)
Age^b	47.26 ± 10.86
Underlying kidney disease (n, %)
CGN	645 (58.9)
DN	22 (2.0)
HTN	67 (6.1)
PKD	57 (5.2)
Others	76 (6.9)
Unknown	228 (20.8)
Comorbidity (n, %)
Diabetes mellitus	45 (4.1)
Hypertension	872 (79.6)
Duration of dialysis (months)^a	84 (60∼120)
SBP (mmHg)^b	142.26 ± 20.88
DBP (mmHg)^b	87.98 ± 15.04
Heartbeat (beats/min)^b	82.88 ± 11.72
Clinical symptoms
Bone pain (n, %)	873 (79.7)
Pruritus (n, %)	591 (54.0)
Laboratory test
Preoperative iPTH (pg/ml)^a	1448.4 (996.0∼2173.8)
Preoperative ALP (U/L)^a	205.6 (117.0∼464.9)
Preoperative calcium (mmol/L)^b	2.43 ± 0.24
Preoperative phosphorus (mmol/L)^b	2.25 ± 0.56
Hemoglobin (g/L)^b	107.67 ± 19.58
Albumin (g/L)^b	41.89 ± 5.04

tPTX, total parathyroidectomy; CGN, chronic glomerulonephritis; DN, diabetic nephropathy; HTN, hypertensive nephropathy; PKD, polycystic kidney disease; SBP, systolic blood pressure; DBP, diastolic blood pressure. ^aMedian, Q1∼Q3. ^bMean ± SD.