• Clinical and Experimental Pediatrics
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• 제57권12호
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• pp.514-519
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• 2014

Hemorrhagic cystitis is a common stem cell transplantation-related complication. The incidence of early-onset hemorrhagic cystitis, which is related to the pretransplant conditioning regimen, has decreased with the concomitant use of mesna and hyperhydration. However, late-onset hemorrhagic cystitis, which is usually caused by the BK virus, continues to develop. Although the BK virus is the most common pathogenic microorganism of poststem cell transplantation late-onset hemorrhagic cystitis, pediatricians outside the hemato-oncology and nephrology specialties tend to be unfamiliar with hemorrhagic cystitis and the BK virus. Moreover, no standard guidelines for the early diagnosis and treatment of BK virus-associated hemorrhagic cystitis after stem cell transplantation have been established. Here, we briefly introduce poststem cell transplantation BK virus-associated hemorrhagic cystitis.

• 대한한방내과학회지
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• 제44권2호
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• pp.178-186
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• 2023

Hemorrhagic cystitis refers to massive inflammation and the diffuse vesical bleeding of the bladder. In patients with hematuria complaining of dysuria and pain, it is necessary to differentiate various causes, including cystitis, nephritis, and prostatitis. After the diagnosis of hemorrhagic cystitis, antibiotics usually treat and prevent further urinary tract infections. In the present case, a 78-year-old female patient with hemorrhagic cystitis presenting with hematuria underwent Korean medical treatment with Jeoryeong-tang-hap-Samul-tang for 29 days. The effect of the treatment was assessed with the hematuria grading scale (HGS) per week, urinalysis per two weeks, and the NRS (numeric rating scale) of dysuria per day. After treatment, both HGS and NRS scores decreased, and protein, blood, and red blood cells (RBCs) in urinalysis improved. This case report suggests that Jeoryeong-tang-hap-Samul-tang might be an effective option for hemorrhagic cystitis patients who continuously take antiplatelets.

• Journal of Yeungnam Medical Science
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• 제26권2호
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• pp.143-147
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• 2009

Hemorrhagic cystitis (HC) is a common complication after allogeneic transplantation. Early posttransplant HC occurs in association with cyclophosphamide, while later on HC results from viral infections such as polyomavirus BK (BKV) and adenovirus. We report here the case of a 57-year-old woman who received an instillation of cidofovir into the bladder for the treatment of hemorrhagic cystitis after allogeneic peripheral stem cell transplantation for her acute myeloid leukemia. Cyclophosphamide and busulfan were used as conditioning treatments. Cyclosporin was administered daily. On the 71st day after transplantation, the patient developed acute severe hemorrhagic cystitis, and BK virus was demonstrated in the urine samples using polymerase chain reaction. Her urinary symptoms did not improve in spite of palliative treatment, but a response was evident after intravesical cidofovir treatment.

• 한국동물위생학회지
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• 제39권3호
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• pp.193-197
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• 2016

A 12-years-old Maltese (castrated male) dog with jaundice and purulent discharge from the shoulder was referred to the Veterinary Medical Teaching Hospital of Chungnam National University. A physical and laboratory examination revealed that the mucosa of the conjunctiva and the sclera were icteric, and the liver functional enzyme level and the total bilirubin level were increased. Duodenal caudal deviation caused by suspected masses in diameter of about 2 cm was shown by radiographic and ultrasonographic examinations. Using fine needle aspiration (FNA) and computed tomography (CT), the dog was diagnosed with alimentary lymphoma. The dog was treated with chemotherapy. Hematuria was discovered and dysuria occurred because of sterile hemorrhagic cystitis, which is a unique complication resulting from the use of cyclophosphamide.

• Biomolecules & Therapeutics
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• 제23권2호
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• pp.180-188
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• 2015

This study investigated the possible effects and molecular mechanisms of diallyl disulfide (DADS) against cyclophosphamide (CP)-induced hemorrhagic cystitis (HC) in rats. Inflammation response was assessed by histopathology and serum cytokines levels. We determined the protein expressions of nuclear transcription factor kappa-B (NF-${\kappa}B$), inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), and tumor necrosis factor-${\alpha}$ (TNF-${\alpha}$), oxidative stress, urinary nitrite-nitrate, malondialdehyde (MDA), and 8-hydroxy-2'-deoxyguanosine (8-OHdG). Finally, we studied the involvement of mitogen-activated protein kinases (MAPKs) signaling in the protective effects of DADS against CP-induced HC. CP treatment caused a HC which was evidenced by an increase in histopathological changes, proinflammatory cytokines levels, urinary nitrite-nitrate level, and the protein expression of NF-${\kappa}B$, COX-2, iNOS, TNF-${\alpha}$, p-c-Jun N-terminal kinase (JNK), and p-extracellular signal regulated kinase (ERK). The significant decreases in glutathione content and glutathione-S-transferase and glutathione reductase activities, and the significant increase in MDA content and urinary MDA and 8-OHdG levels indicated that CP-induced bladder injury was mediated through oxidative DNA damage. In contrast, DADS pretreatment attenuated CP-induced HC, including histopathological lesion, serum cytokines levels, oxidative damage, and urinary oxidative DNA damage. DADS also caused significantly decreased the protein expressions of NF-${\kappa}B$, COX-2, iNOS, TNF-${\alpha}$, p-JNK, and p-ERK. These results indicate that DADS prevents CP-induced HC and that the protective effects of DADS may be due to its ability to regulate proinflammatory cytokines production by inhibition of NF-${\kappa}B$ and MAPKs expressions, and its potent anti-oxidative capability through reduction of oxidative DNA damage in the bladder.

• Childhood Kidney Diseases
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• 제26권1호
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• pp.11-17
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• 2022

BK polyomavirus (BKPyV) is a ubiquitous virus residing in the kidney tubules and is clinically significant only in immunocompromised patients. In clinical practice, BKPyV is a causative pathogen of BKPyV-associated nephropathy (BKVAN) in kidney allograft recipients or hemorrhagic cystitis of hematopoietic stem cell transplant recipients. Currently, there is no effective treatment for BKVAN; therefore, careful monitoring and prudent modification of immunosuppression are necessary to prevent BKVAN. In this article, the epidemiology, pathophysiology, and current management strategies for BKVAN are reviewed.

• 대한세포병리학회지
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• 제7권2호
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• pp.192-196
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• 1996

The principal significance of the urothelial changes caused by polyomavirus activation is in an erroneous diagnosis of urothelial cancer; however, the clue to their benign nature is the smooth structureless nuclear configuration and the relative paucity of affected cells. Though virologic studies and electron microscopy are usually needed to firmly establish the diagnosis, cytology is the most readily available and rapid means of establishing a presumptive diagnosis of human polyomavirus infection. A urine specimen of a 24-year-old man with hemorrhagic cystitis beginning two months after bone marrow transplantation for acute myeloblastic leukemia(M2) was submitted for cytologic evaluation. Cytologic findings revealed a few inclusion-bearing epithelial cells intermingled with erythrocytes, neutrophils, lymphocytes, and macrophages. Most of the inclusion-bearing fells had large, round to ovoid nuclei almost completely filled with homogeneous dark, basophilic inclusion. The chromatin was clumped along the periphery and the cytoplasm was mostly degenerated. The other cells exhibited irregular inclusions attached to the nuclear membrane surrounded by an indistinct halo. These findings were consistent with polyomavirus infection.

• Kidney Research and Clinical Practice
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• 제37권4호
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• pp.414-417
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• 2018

Disseminated adenovirus infection can result in high mortality and morbidity in immunocompromised patients. Here, we report the case of a 10-year-old renal allograft recipient who presented with hematuria and dysuria. Adenovirus was isolated from his urine. His urinary symptoms decreased after intravenous hydration and reduction of immunosuppressants. However, 2 weeks later he presented with general weakness and laboratory tests indicated renal failure necessitating emergency hemodialysis. Adenovirus was detected in his sputum; therefore, intravenous ganciclovir and immunoglobulin therapy were initiated. Renal biopsy revealed diffuse necrotizing granulomatous tubulointerstitial nephritis compatible with renal involvement of the viral infection. Adenovirus was detected in his serum. Despite cidofovir administration for 2 weeks, adenovirus was also detected in the cerebrospinal fluid, resulting in generalized tonic-clonic seizure. The patient died 7 weeks after the onset of urinary symptoms. Adenovirus should be considered in screening tests for post-renal transplantation patients who present with hemorrhagic cystitis.

• Clinical and Experimental Pediatrics
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• 제54권4호
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• pp.169-175
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• 2011

Purpose: Acute internal hemorrhage is an occasionally life-threatening complication in pediatric cancer patients. Many therapeutic approaches have been used to control bleeding with various degrees of success. In this study, we evaluated the efficacy of selective internal iliac artery embolization for controlling acute intractable bleeding in children with malignancies. Methods: We retrospectively evaluated the cases of 6 children with various malignancies (acute lymphoblastic leukemia, acute myelogenous leukemia, chronic myelogenous leukemia, T-cell prolymphocytic leukemia, Langerhans cell histiocytosis, and rhabdomyosarcoma), who had undergone selective arterial embolization (SAE) of the internal iliac artery at the Chonnam National University Hwasun Hospital between January 2004 and December 2009. SAE was performed by an interventional radiologist using Gelfoam$^{(R)}$ and/or Tornado$^{(R)}$ coils. Results: The patients were 5 boys and 1 girl with median age of 6.9 years (range, 0.7-14.8 years) at the time of SAE. SAE was performed once in 4 patients and twice in 2, and the procedure was unilateral in 2 and bilateral in 4. The causes of hemorrhage were as follows: hemorrhagic cystitis (HC) in 3 patients, procedure-related internal iliac artery injuries in 2 patients, and tumor rupture in 1 patient. Initial attempt at conservative management was unsuccessful. Of the 6 patients, 5 (83.3%) showed improvement after SAE without complications. Conclusion: SAE may be a safe and effective procedure for controlling acute intractable hemorrhage in pediatric malignancy patients. This procedure may obviate the need for surgery, which carries an attendant risk of morbidity and mortality in cancer patients with critical conditions.

• Journal of Yeungnam Medical Science
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• 제12권2호
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• pp.191-202
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• 1995

목 적: 소아의 급성 열성 질환은 그 원인이 위장관 계통이 아니더라도 흔히 구토, 설사, 복통 등의 복부증상을 동반하나 발열의 원인이 불명이면서 복부 증상이 동반될 때는 발열의 원인이 복부장기 이상소견으로 인한 것인지, 복부장기의 이상소견으로 그 원인을 유추할 수 있는지 당연히 관심을 가지게 된다. 저자들은 발열과 복부 증상을 주소로 하는 환아에서 복부 초음파 검사를 실시하여 그의 진단적 의의에 대해 알아보기 위하여 본 연구를 시행하였다. 방 법: 1994년 1월부터 1995년 6월까지 발열과 복부증상을 주소로 울산 동강병원 소아과에 입원, 치료한 환아 중 진단적 목적의 일부분으로 복부 초음파검사를 시행한 60례를 대상으로 그 검사의 진단적 가치에 대해서 후향적으로 조사하였다. 결 과: 1) 검사 환아중 56례 (93.3%)에서 복부 초음파의 이상 소견을 보였다. 2) 복부 초음파검사의 이상 소견으로 장간막 임파선 종대를 동반하는 경우가 52례 (86.7%)로서 가장 많았고, 소량의 복수만 있었던 경우가 1례 (1.7%), 방광벽 비후가 2례 (3.5%), 미세한 대장벽 비후만 있었던 경우가 1례 (1.7%) 있었다. 3) 소량의 복수 동반 여부와 관계없이 장간막 임파선 종대만 있었던 예는 30례 (50.0%)로서 다양한 진단명으로 볼때 특별한 진단적 가치가 없었다. 4) 소량의 복수 동반 여부와 관계없이 장간막 임파선 종대와 회맹장벽 비후가 있었던 경우가 8례 (13.3%)로서 역시 특별한 진단적 가치가 없었다. 5) 회맹장벽의 비후와 관계없이 장간막 임파선 종대와 비장비후가 있었던 7례 (11.7%)에선 4례 (6.7%)에서 장티푸스로 진단되었다. 6) 장티푸스로 진단된 6례 (10.0%)의 복부 초음파소견은 장간막 임파선 종대가 6례 (100.0%) 모두에서, 비종대가 4례 (66.7%)에서 회맹장벽비후가 1례에서 (16.7%) 보였고, 장간막임파선종대와 비장비대를 같이 보인 경우가 4례 (66.7%), 장간막임파선종대, 간비장비대, 회맹장벽비후를 같이 보인 경우가 1례 (16.7%) 있었다. 7) 장간막 임파선종대와 충수돌기 부위의 이상이 같이 있었던 7례 (11.7%) 모두에서 급성 충수돌기염이나 그의 합병증으로 진단되었다. 8) 방광벽 비후가 있었던 2례 (3.3%)에서 급성 방광염과 급성 출혈성방광염으로 진단되었다. 9) 미세한 대장벽의 비후가 있었던 1례 (1.7%)에서는 이질로 진단되었다. 결 론: 발열과 복부증상을 주소로 하는 환아에서 복부 초음파검사상 회맹장벽의 비후, 장간막 임파선 종대, 비장비후 등의 소견이 있을때에는 장티푸스의 가능성을 고려해야겠으며 소아에서 복부이학적검사를 쉽게 할 수 없는 경우나 그 진단이 분명치 못한 경우 복부 초음파검사를 시행하여 장간막 임파선 종대와 충수돌기 주변 부위의 이상 소견으로 수술이 필요한 급성 충수돌기염이나 그의 합병증의 진단을 신속히 할 수 있으리라 사료된다.