Related Experiment Video
Updated: Jul 15, 2026
11:02
Induction of Invasive Transitional Cell Bladder Carcinoma in Immune Intact Human MUC1 Transgenic Mice: A Model for Immunotherapy Development
Published on: October 30, 2013
[Intravesical therapy: Influence on superficial bladder cancer progression]
Jorge García Rodríguez1, Jesús María Fernández Gómez, Safwan Escaf Barmadah
1Servicio de Urología I, Hospital Central de Asturias, Oviedo, Asturias, España. jgrmed@hotmail.com
Archivos Espanoles De Urologia
|April 6, 2007
Summary
Maintenance intravesical therapy with Bacillus Calmette-Guérin (BCG) delayed superficial bladder cancer progression. This approach appears most effective for moderate-to-high risk tumors, improving disease-free survival.
Area of Science:
- Urology
- Oncology
- Cancer Research
Context:
- Superficial bladder cancer (Ta/T1) accounts for a significant proportion of bladder malignancies.
- Intravesical therapies are standard for preventing recurrence and progression.
- Optimizing treatment strategies remains crucial for improving patient outcomes.
Purpose:
- To evaluate the impact of different intravesical treatment modalities on the progression of superficial bladder cancer.
- To compare the efficacy of Bacillus Calmette-Guérin (BCG) and intravesical chemotherapy (Mitomycin C).
- To identify factors influencing disease-free survival in patients with superficial bladder tumors.
Summary:
- A retrospective review of 473 superficial bladder neoplasias was conducted.
- Patients received intravesical treatments including BCG (139 cases) and chemotherapy (80 cases) post-transurethral resection of bladder tumor (TURBT).
- While overall instillations showed no significant difference in time to progression, maintenance therapy emerged as a significant factor for disease-free progression.
Impact:
- Maintenance intravesical therapy with BCG demonstrates a delayed progression in superficial bladder cancer.
- This strategy appears most effective for moderate-to-high risk tumors.
- Findings support the role of maintenance BCG in improving disease-free survival for specific patient subgroups.
Related Concept Videos
01:30Urinary Tract Calculi III: Medical Management
The diagnosis of renal calculi involves several imaging techniques, including non-contrast CT scans and ultrasound. These methods help visualize kidney stones, assess their size and location, and detect possible obstructions. Additionally, Measuring urine pH is useful for diagnosing specific stone types, such as struvite (alkaline pH) and uric acid stones (acidic pH). Cystine stones are primarily linked to cystinuria, a genetic condition. A urinalysis helps detect blood in the urine (hematuria)...
01:25Urinary Tract Calculi VI: Surgical Management
Procedures for Kidney StonesMedical intervention is necessary when kidney stones or renal calculi are too large to pass spontaneously (typically greater than 5 millimeters) when stones are accompanied by symptomatic infection (such as fever or pyelonephritis), when they impair kidney function, or when they cause persistent symptoms like severe pain, nausea, or urinary retention. Additionally, patients with only one kidney or those who cannot be treated with medical management also require...
02:49Cancer Therapies
Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients.
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...