Li GT, Li XF, Ding Y Cervicovesical U-suture: An effective novel alternative to partial cystectomy for controlling life-threatening postpartum hemorrhage due to placenta accreta spectrum invading the bladder. Asian J Surg. 2022 Dec;45(12):2745-2747. doi: 10.1016/j.asjsur.2022.06.018. Epub 2022 Jun 18. No abstract available.
Matsubara S, Takahashi H, Baba Y Handling aberrant vessels located in the posterior bladder wall in surgery for abnormally invasive placenta: a non/less-touch technique. Arch Gynecol Obstet. 2017 Nov;296(5):851-853. doi: 10.1007/s00404-017-4498-2. Epub 2017 Sep 5.
Matsubara S Intentional cystotomy in surgery for placenta percreta with bladder invasion: Not only for hysterectomy but also for uterus-preserving surgery. Acta Obstet Gynecol Scand. 2023 Jan;102(1):122-123. doi: 10.1111/aogs.14484. Epub 2022 Nov 30. No abstract available.
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Wu WJ, Smith AD, Okeke Z Bladder Necrosis Associated with Placenta Accreta, Embolization, and Repair of Cystotomies. J Endourol Case Rep. 2015 Oct 1;1(1):24-6. doi: 10.1089/cren.2015.29007.wjw. eCollection 2015.
ACAR-Style Bladder Suture in Uterus-Sparing Surgery and Hysterectomy for Placenta Percreta: A Result Analysis
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.