Development of a method for serial intravesical administration of drugs in experiment
| Autor: | I. V. Taran, O.V. Mashevska, O.H. Kostiuk, N.L. Hodovan, D. I. Grebeniuk |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Chemotherapy
medicine.medical_specialty Urinary bladder business.industry Urinary system medicine.medical_treatment Adhesion (medicine) Abdominal cavity medicine.disease Surgery Catheter medicine.anatomical_structure Edema medicine General Earth and Planetary Sciences medicine.symptom business General Environmental Science Fixation (histology) |
| Zdroj: | Biomedical and Biosocial Anthropology. :17-23 |
| ISSN: | 2616-6208 2719-5996 |
| DOI: | 10.31393/bba38-2020-03 |
| Popis: | The technical difficulties of serial intravesical administration of drugs are a significant problem in preclinical studies of the effectiveness of local chemotherapy for superficial bladder cancer. The aim of the study was to develop and evaluate the effectiveness of the method of serial intravesical administration of drugs in the experiment. The study included 49 Wistar rats of both sexes. Five proposed methods of intravesical administration of drugs were investigated: retrograde catheterization of the urinary bladder under anesthesia, method of transcutaneous puncture of the urinary bladder in rats, intraoperative puncture of the bladder, method of subcutaneous fixation of the bladder for subsequent puncture in the experiment, method of serial intravesical administration of drugs in female rats using special catheter. The obtained data were processed using a package of statistical programs SPSS 20.0 for Windows. The disadvantage of the first technique is its trauma – each insertion of the catheter is accompanied by trauma of the urethral mucosa and associated pain. The manipulations were failed because of edema of the urethral mucosa. The manipulation should be performed under general anesthesia. The second technique also requires general anesthesia. The aggressive cytostatic action of Doxorubicin prevented the closure of the puncture hole and caused the development of complications. Sealing the bladder with a collagen plate when performing the third technique prevents the release of the drug into the abdominal cavity, however, the adhesion of the tissues of the surrounding organs to the plate promotes the formation of an adhesive conglomerate and makes further manipulations impossible. The withdrawal of the bladder from the abdominal cavity during the implementation of the fourth technique, theoretically, should have helped to avoid the complications observed during the third technique. However, insufficiently reliable fixation of the urinary and adhesions in the area of the implanted ring make this technique such that it does not correspond to the tasks set. The fifth method was the only one proposed that met all the assigned tasks. This technique made it possible to perform a series of 5 intravesical injections of Doxorubicin without general anesthesia and without the development of postoperative complications from the postoperative wound and abdominal cavity. The proposed method of serial intravesical administration of drugs in female rats using a special catheter makes it technically easy to perform serial intravesical administration of drugs without the use of general anesthesia and without the development of complications from the postoperative wound and abdominal cavity. |
| Databáze: | OpenAIRE |
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