Neniwal Vishal Kumar, Swain Samir, Rulaniya Suresh Kumar, Hota Datteswar, Agarwal Piyush, Yadav Praveen Kumar
Department of Urology and Renal Transplant, SCB Medical College Cuttack, Odisha, India.
Curr Urol. 2023 Jun;17(2):125-129. doi: 10.1097/CU9.0000000000000044. Epub 2022 Aug 2.
Purple urine bag syndrome (PUBS) is an unusual condition in which a purple discoloration of urine and bag occurs in people with urinary catheters. People with purple urine usually do not complain of any symptoms. The purple discoloration of the urine bag is often the only finding, frequently noted by caregivers.
This prospective observational study was conducted at our tertiary care institute from June 2018 to May 2020. A total of 46 patients with PUBS were included in this study. The objective of our study was to record the prevalence of each predisposing factor and to correlate the pathological mechanism through which the PUBS is manifested.
The mean age of PUBS patients was 67.4years and 67.4% were males. Most patients of PUBS (60.9%) had a urethral catheter, while there was percutaneous nephrostomy in 26.1% patients and 13% patients had a percutaneous suprapubic cystostomy catheter. Among the patients, 69.65% were bedridden or in an institutionalized situation, 73.9% were suffering from chronic constipation, 21.7% were associated with dementia, and 47.8% were cerebrovascular accidents with hemiparesis patients. In addition, 93.5% of patients presented with alkaline urine and 3 patients with acidic urine. The most common bacteria isolated in urine culture were E coli and Pseudomonas.
Urinary catheter associated urinary tract infection and PUBS is most commonly documented in females, but our study showed that it is more common in males. The appearance of a purple bag does not depend on the material and type of the catheter or the catheterization method. In addition, no correlation was found between the microorganisms isolated from the environment and patients' urine.
紫色尿袋综合征（PUBS）是一种罕见病症，发生于留置导尿管的患者，尿液和尿袋会出现紫色变色。尿液呈紫色的患者通常没有任何症状主诉。尿袋的紫色变色往往是唯一的发现，护理人员经常会注意到。
这项前瞻性观察性研究于2018年6月至2020年5月在我们的三级医疗机构进行。本研究共纳入46例紫色尿袋综合征患者。我们研究的目的是记录每个诱发因素的患病率，并关联紫色尿袋综合征表现的病理机制。
紫色尿袋综合征患者的平均年龄为67.4岁，67.4%为男性。大多数紫色尿袋综合征患者（60.9%）有尿道导管，而26.1%的患者有经皮肾造瘘术，13%的患者有经皮耻骨上膀胱造瘘导管。在这些患者中，69.65%卧床或处于机构化环境中，73.9%患有慢性便秘，21.7%伴有痴呆，47.8%是脑血管意外伴偏瘫患者。此外，93.5%的患者尿液呈碱性，3例患者尿液呈酸性。尿培养中分离出的最常见细菌是大肠杆菌和假单胞菌。
导尿管相关尿路感染和紫色尿袋综合征在女性中记录最为常见，但我们的研究表明在男性中更常见。紫色尿袋的出现不取决于导管的材料和类型或插管方法。此外，从环境和患者尿液中分离出的微生物之间未发现相关性。
