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[目的]分析复杂性肾结石化学成分构成特点,为预防结石复发提供依据。[方法]选择我院2006年10月~2008年6月收治的复杂性肾结石患者75例,采用微创经皮肾镜取石术治疗结石,收集术中结石标本,行结石化学成分定性分析。[结果]75例中含钙结石72例(96%),62例(82.7%)为混合成分,其中草酸钙+磷酸钙+尿酸胺12例(16.7%),草酸钙+磷酸钙38例(52.8%),草酸钙+尿酸9例(12.5%),磷酸钙+磷酸镁铵3例(4.2%);纯草酸钙结石10例(13.9%)。分析各结石成分构成,草酸钙最多(92%),其次为磷酸钙(70.7%),尿酸(29.3%),磷酸镁铵(6.67%)。[结论]复杂性肾结石绝大部分为混合成分。结石形成可受多种因素影响。
[Objective] To analyze the composition of complex chemical composition of kidney stones and provide basis for prevention of recurrence of stones. [Methods] Seventy-five patients with complicated nephrolithiasis were treated in our hospital from October 2006 to June 2008. The patients were treated with minimally invasive percutaneous nephrolithotomy. The stones were collected during the operation. The chemical composition of the calculus was qualitatively analyzed. [Results] Among the 75 cases, 72 cases (96%) had calcium-containing stones and 62 cases (82.7%) were mixed components. Among them, calcium oxalate, calcium phosphate and uric acid amine were included in 12 cases (16.7%), calcium oxalate and calcium phosphate 52.8%), calcium oxalate and uric acid in 9 cases (12.5%), calcium phosphate and ammonium magnesium phosphate in 3 cases (4.2%) and calcium oxalate stones in 10 cases (13.9%). Calcium oxalate (70.7%), uric acid (29.3%) and ammonium magnesium phosphate (6.67%) were the most abundant in the analysis of each stone composition. [Conclusion] The vast majority of complex renal calculi are mixed components. The formation of stones can be affected by many factors.