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Osmotic dilators, also known as hygroscopic dilators, are medical implements used to dilate the uterine cervix by swelling as they absorb fluid from surrounding tissue. [1] They may be composed of natural or synthetic materials. A laminaria stick or tent is a thin rod made of the stems of dried Laminaria, a genus of kelp.
Dilation is commutative, also given by = =. If B has a center on the origin, then the dilation of A by B can be understood as the locus of the points covered by B when the center of B moves inside A. The dilation of a square of size 10, centered at the origin, by a disk of radius 2, also centered at the origin, is a square of side 14, with ...
Dilators are primarily used to open and dilate the cervix to gain access to the uterine cavity, but can also be used as sounds. Uterine sounding may be performed prior to embryo transfer to determine the uterine depth and how easily an embryo transfer catheter can be passed through the cervix. In this case, it may also be called a trial ...
Left atrial enlargement (LAE) or left atrial dilation refers to enlargement of the left atrium (LA) of the heart, and is a form of cardiomegaly. Signs and symptoms
From that point, pressure from the presenting part (head in vertex births or bottom in breech births), along with uterine contractions, will dilate the cervix to 10 centimeters, which is "complete." Cervical dilation is accompanied by effacement, the thinning of the cervix. General guidelines for cervical dilation: Latent phase: 0–3 centimeters
Hegar dilators are dilators used to treat vaginismus and induce cervical dilation, and for inflatable penile implant procedures, though for penile implants it has been shown that outcomes are better without dilation. [1] [2] [3] [4]
Normal blood vessel (left) vs. vasodilation (right) Vasodilation, also known as vasorelaxation, is the widening of blood vessels. [1] It results from relaxation of smooth muscle cells within the vessel walls, in particular in the large veins, large arteries, and smaller arterioles. [2]
[3] There is evidence for dilator use [4] across many different diagnoses with fair to good results. This includes following cancer treatments and for vaginal agenesis conditions. The evidence presents varying approaches and protocols. Vaginal dilators, also called vaginal stents or vaginal expanders, can be inflatable and are used during ...