Cusco's speculum

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Cusco's speculum Cusco's selfretaining bivalve vaginal speculum Left.jpg
Cusco's speculum

Cusco's self-retaining bivalved speculum is a surgical instrument used for vaginal and cervical examination. It has a jaw that opens up like a duck bill.

The instrument was named after French surgeon Édouard-Gabriel Cusco (1819–1894). [1]

It comes in three models: side screw, centre screw, and special narrow virgin size. [2] Cusco's speculum is usually 80 millimeters (3.1 in) long and 22 millimeters (0.87 in) broad. However, smaller and larger sizes are available. Cusco's speculum is used for introducing an intrauterine contraceptive device, taking a Pap smear, cauterization of vaginal erosion, and colposcopic examination. [3] It is preferred in cryosurgery because it protects the anterior and posterior vaginal wall. The advantage of Cusco's speculum is that it is self-retaining. Therefore, an assistant's help is not needed to keep the speculum in place. It also acts as the vaginal wall retractor. However, it reduces the space in the vaginal cavity and therefore is not a preferred instrument for vaginal surgery. Because it covers most of the vaginal wall, small lesions on the vaginal wall may be masked by the blades of the device. [4]

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Sims vaginal speculum

Sims' vaginal speculum is a double-bladed surgical instrument used for examining the vagina and cervix. It was developed by J. Marion Sims out of pewter spoon, but nowadays it is manufactured out of stainless steel or plastic. The plastic speculum is disposable, but the stainless steel one is not. Therefore, the stainless steel speculum should be sterilized before each use. Sims' speculum is inserted into the vagina to retract posterior vaginal wall. It gives more exposure of the vaginal walls than Cusco's Speculum and therefore is preferred for gynaecological surgeries. it is possible to slide the instrument around the vaginal wall to enable better visualization. The groove in the middle of Sims' speculum allows free flow of secretions and blood to the outside, thereby keeping the area dry. Sims' speculum is available in various sizes, and the size appropriate to the vaginal dimensions of the woman is chosen for use. The disadvantage of Sims' speculum is that it is not self-retracting. The examiner might want to use an anterior wall retractor in addition to Sims' speculum for better visualization of the cervix.

Vaginal cysts

Vaginal cysts are uncommon benign cysts that develop in the vaginal wall. The type of epithelial tissue lining a cyst is used to classify these growths. They can be congenital. They can present in childhood and adulthood. The most common type is the squamous inclusion cyst. It develops within vaginal tissue present at the site of an episiotomy or other vaginal surgical sites. In most instances they do not cause symptoms and present with few or no complications. A vaginal cyst can develop on the surface of the vaginal epithelium or in deeper layers. Often, they are found by the women herself and as an incidental finding during a routine pelvic examination. Vaginal cysts can mimic other structures that protrude from the vagina such as a rectocele and cystocele. Some cysts can be distinguished visually but most will need a biopsy to determine the type. Vaginal cysts can vary in size and can grow as large as 7 cm. Other cysts can be present on the vaginal wall though mostly these can be differentiated. Vaginal cysts can often be palpated (felt) by a clinician. Vaginal cysts are one type of vaginal mass, others include cancers and tumors. The prevalence of vaginal cysts is uncertain since many go unreported but it is estimated that 1 out of 200 women have a vaginal cyst. Vaginal cysts may initially be discovered during pregnancy and childbirth. These are then treated to provide an unobstructed delivery of the infant. Growths that originate from the urethra and other tissue can present as cysts of the vagina.

References

  1. Dorland, William Alexander Newman (1917), The American illustrated medical dictionary, W.B. Saunders Company, p. 272
  2. "Cusco Vaginal Speculum". Blacksmith Surgical. Retrieved 17 November 2016.
  3. "Vaginal Specula" . Retrieved 17 November 2016.
  4. Salhan, Sudha (2011). Textbook of Gynaecology. JP Medical. p. 648. ISBN   9789350253694.