Clinical Epidemiology Investigation of Inpatients with Urolithiasis

Bo TAO; En-yan JEANG; Jian-he LIU

doi:10.12259/j.issn.2095-610X.S20210324

Volume 42 Issue 3

Apr. 2021

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Bo TAO, En-yan JEANG, Jian-he LIU. Clinical Epidemiology Investigation of Inpatients with Urolithiasis[J]. Journal of Kunming Medical University, 2021, 42(3): 94-97. doi: 10.12259/j.issn.2095-610X.S20210324

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Bo TAO, En-yan JEANG, Jian-he LIU. Clinical Epidemiology Investigation of Inpatients with Urolithiasis[J]. Journal of Kunming Medical University, 2021, 42(3): 94-97. doi: 10.12259/j.issn.2095-610X.S20210324

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Clinical Epidemiology Investigation of Inpatients with Urolithiasis

doi: 10.12259/j.issn.2095-610X.S20210324

1.
Dept. of Urology，Yunnan Kungang Hospital，An’ning Yunnan 650302
2.
Dept. of Urology，The Second Affiliated Hospital of Kunming Medical University，Kunming Yunnan 650101，China

Received Date: 2020-12-01
Publish Date: 2021-04-09

Abstract

Abstract

Objective To provide clinical basis for the prevention and treatment of regional urinary calculi by retrospectively analyzing the clinical data of urolithiasis patients. Methods The medical records of patients with urinary calculi in 2016 and 2017 in the Department of Urology, Second Affiliated Hospital of Kunming Medical University were collected and retrospectively investigated. Results There were 6545 urolithiasis patients in 2016 and 2017, which accounted for 47.8% of hospitalized patients in urology department with the same period, with the ration of 2.12∶1 between male and female patients. In this group, the high-incidence age was between 41 and 60 years old （67.8%）, and the farmers （33.9%） were the main occupation. Also, we found the in-patients of overweight and obesity was 30.5% and 18.5% respectively. Statistically, the upper urinary calculi were most common in urinary calculi, and the distribution of calculi was different in different genders（P < 0.05）. The 463 reports our researchers investigated showed that the calcium oxalate stone composition accounted for the highest proportion, up to 68% and mixed component stones occupied 79%. The average CT value of calculi was 837.2±286.1 HU. 75.7% calculi with CT value less than 500 HU were uric acid stones, 67.2% calculi with CT value more than 800 HU were calcium stone, and 85% calculi with CT value between 500～800 HU were infectious calculi （magnesium ammonium phosphate/phosphorite apatite）. The urinary PH of calculi patients was 6.3 ± 0.9. The main component of calculi in patients with urine pH < 5 was uric acid, accounting for 72.7%; the main component of calculi in patients with urine pH > 6.5 was infected calculi, accounting for 92%; the main component of calculi in patients with urine 5≤pH≤6.5 was calcium stone, accounting for 67.1%. Conclusions （1） This group of urolithiasis patients accounted for a higher proportion of urological inpatients in the same period, suggesting that urolithiasis is the most common urological disease in Yunnan Province; There are more men than women in urolithiasis, the high incidence age is 41-60 years old; The farmers are the main occupation. （2） Upper urinary calculi are more common in urolithiasis, and the distribution of calculi was different in different genders. （3） The CT values of stones with different components are different. The CT value of uric acid stones is below 500 HU; the CT value of infected stones ranges from 500 HU to 800 HU; the CT value of calcium-containing stones is above 800 HU. （4） Urine pH is an important factor affecting the formation of calculi. Acidic urine is easy to form uric acid stones, and alkaline urine are easy to form infected stones .
- Urolithiasis,
- Inpatients,
- Clinical epidemiology

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References

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