Differential diagnosis of hypercalciuria and its role in the meta-prevention of calcium-oxalate nephrolithiasis


В. В. Черненко
Д. В. Черненко
В. Й. Савчук
Н. І. Желтовська
Ю. М. Бондаренко


The course of the most prevalent СaOx nephrolithiasis is accompanied by hypercrystallization, which is a high risk of relapsing CKD. For conducting scientifically grounded metaphilactics, it is necessary to distinguish the types of crystallization. We offer tests:

1. Low calcium test – used for hypercalciuria: within 3 days, the patient is assigned a low calcium diet followed by a determination of the level of calcium in the daily urine. Reducing the level of calcium to the norm indicates the presence of an absorbent form of hypercalciuria of type II. The reason is hyperabsorption of Ca from the intestine. In metaphilactics it is necessary to recommend to the patient a low calcium diet. In cases of lack of hypercalciuria, a diagnosis of hypercalciuria I type (non-absorption) is presented and is associated with a violation of enzymatic activity of the liver.

2. Calcium test (absorbent hyperoxaluria). Results of the study of daily urine on the content of stone-forming salts revealed in 25–30% of cases high levels of oxalurium (76––114 mg/l at a rate of 35–40 mg/l) with normal calciuria. Hyperoxaluria is an aggressive hypercrystallization factor, the level depends on the used diet, absorption in the intestine. The activity of absorption of oxalate depends on calcium, which binds the oxalate and translates into insoluble form, thus preventing absorption.

Calcium test: 3 calcium 0,5 gluconate (3 days). The control of daily urine – oxaluria comes to the upper limit of the norm (38-45 mg/l), we diagnose absorbent hyperoxaluria. In metaphysics of CaOx, nephrolithiasis with pronounced hyperoxaluria shows calcium diet.

3. Thiazide test – is conducted at elevated rates of parathormone with hypercalciuria and hyperuricemia. Within 5–7 days, thiazide diuretics are prescribed: hydrochlorothiazide 50 mg – 1 g/day, or chlorthalidone 50 mg 2 g/day, or chlorothiazide 4 mg 1 g/day, with the determination of the level of calcium in the blood and urine. With an increase in the level of hypercalcemia, we diagnose the resorptive form of hypercalciuria (primary hyperparathyroidism). Consultation of an endocrinologist on resection of parathyroid glands and further treatment.

Initiated differential diagnosis of hypercalciuria makes it possible to scientifically substantiate the antirecurring treatment of the most prevalent CaOx nephrolithiasis with high efficiency and a percentage (92–95%) of the non-recurring period during 5 years of metaphilactics.


How to Cite
Черненко, В. В., Черненко, Д. В., Савчук, В. Й., Желтовська, Н. І., & Бондаренко, Ю. М. (2018). Differential diagnosis of hypercalciuria and its role in the meta-prevention of calcium-oxalate nephrolithiasis. Health of Man, (2), 104–108. https://doi.org/10.30841/2307-5090.2.2018.149649
Author Biographies

В. В. Черненко, State Institution «Institute of Urology of NAMS of Ukraine»

Vasyl V. Chernenko,

Head of Department of Kidney Stone Disease

Д. В. Черненко, State Institution «Institute of Urology of NAMS of Ukraine»

Dmytro V. Chernenko,

Department of Kidney Stone Disease

В. Й. Савчук, State Institution «Institute of Urology of NAMS of Ukraine»

Volodymyr J. Savchuk,

Department of Kidney Stone Disease

Н. І. Желтовська, State Institution «Institute of Urology of NAMS of Ukraine»

Natalia I. Zheltovska,

Department of Endoscopic Urology and Lithotripsy

Ю. М. Бондаренко, State Institution «Institute of Urology of NAMS of Ukraine»

Yurii M. Bondarenko,

Department of Urologic Oncology


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