This paper reevaluates the recently reported excess mortality following transurethral resection of the prostate (TURP) for benign hypertrophy as compared with traditional open resection (OPEN). We studied survival through linkage of hospital discharge data with mortality data for the entire male population of Denmark (1977-85). For a maximum of 10.5 years 38,067 prostatectomy patients were followed. Adjusting for age and health status before surgery, TURP patients were subject to significantly higher levels of mortality than OPEN patients (RR = 1.19, 95% confidence interval (1.15-1.24). The extent to which this difference is attributable to the surgical intervention itself remains an open question. The two groups of patients are quite different with regard to age and preoperative health status, and available data may not be sufficient to control such differences through statistical analysis. On the other hand, the difference in mortality persisted over calendar time, even during periods when the pattern of utilization for the two procedures changed significantly (constant RR = 1.19, adjusting for age and comorbidity). The most important causes of death among Danish TURP patients differ from the causes suggested on the basis of previously reported Canadian data. The current evidence is thus ambiguous with regard to hypothetical biologic mechanisms behind the excess mortality over TURP patients. Further investigations are needed to evaluate the safety and effectiveness of prostate surgery.

译文

本文重新评估了最近报道的经尿道前列腺切除术 (TURP) 与传统开腹切除术 (open) 相比,良性肥大的死亡率。我们通过将丹麦 (1977-85) 的整个男性人口的出院数据与死亡率数据联系起来研究了生存率。对38,067名前列腺切除术患者进行了最长10.5年的随访。调整手术前的年龄和健康状况,TURP患者的死亡率明显高于开放患者 (RR = 1.19,95% 置信区间 (1.15-1.24)。这种差异归因于手术干预本身的程度仍然是一个悬而未决的问题。两组患者在年龄和术前健康状况方面存在很大差异,并且可用的数据可能不足以通过统计分析来控制这种差异。另一方面,死亡率的差异在日历期间持续存在,即使在两种程序的使用模式发生显著变化的时期 (恒定RR = 1.19,调整年龄和合并症)。丹麦TURP患者中最重要的死亡原因不同于先前报告的加拿大数据所提出的原因。因此,目前的证据对于TURP患者死亡率过高背后的假想生物学机制是不明确的。需要进一步的研究来评估安全性和前列腺手术的有效性。

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