Among them, 1084 pregnant women were taken a swab from the
cervical canal.
* Intra-uterine pregnancy with low implantation--The gestational sac is above the internal os,
cervical canal is not dilated.
This maneuver is especially useful when the
cervical canal and internal os are tight or resistant.
While it is unlikely that any germs are going to jump from the vaginal wall into the cervix, germs already present in the
cervical canal are just waiting to be dragged up into the uterus.
* Endocervical Curettage: Cells are scraped from inside the
cervical canal as a follow-up to colposcopic examination and biopsy and can help the health care practitioner make a more precise diagnosis.
(1) The
cervical canal is 3cm in length extending from the internal os to the external os.
(1) The procedure requires that the
cervical canal be dilated enough to allow passage of the hysteroscope.
Sperm have to swim like guided missiles from the vagina, up the
cervical canal, across the cavity of the uterus and down the Fallopian tube to fertilise the egg.
That's better than complication rates of 1%-10% reported in the literature, perhaps "because we spend 3-5 minutes coagulating the
cervical canal" during the surgery, he said.
A significant number of false-negative smears and poor endocervical cell recovery for postmenopausal women have been noted in the past,[18-21] possibly due to stenosis of the cervical os and migration of the transformation zone into the
cervical canal.[16] The narrow bristles of the Cervex-Brush easily penetrated the cervical os to collect endocervical cells and showed only a minimal decrease in efficacy in the postmenopausal population.
Ultrasound will show empty uterus, enlarged cervix, gestational sac within the
cervical canal. Rubin criteria can also be used for the diagnosis of cervical pregnancy.
However, cervical stenosis may exist throughout the
cervical canal as well as at the internal os; in this situation, shallow LEEP may be of little benefit.