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Biomedical subjects

W C Casey

Publications and source records attributed to W C Casey.

11 recordsLinked to original sources
PubMed1990

Large Hegar dilators as prostatic elevator during transurethral resection of the prostate.

Large Hegar dilators can be used instead of an index finger through an O'Conner rectal shield to elevate the posterior lobe of the prostate for better access of the resectoscope. The dilators improve maneuverability and provide more length than a finger and are particularly useful in men with marked obesity, arthritic hips, or other conditions that interfere with rectal manipulation of the prostate.

Dilatation↗
PubMed1982

Anatomy and histology of penile deep dorsal vein: venous cushions and proximal "sphincter".

A sphincter-like structure was found at the base of the penis at the division of the crura surrounding the deep dorsal vein and, in instances of paired veins, around both veins. The deep dorsal vein in this anatomic region does not have a clear-cut adventitia or external wall. The venous lumen is stellate in cross sections, with much surrounding smooth muscle, nerve fibers, and connective tissue blending into the penile tissue external to the tunica albuginea. Further microscopic and gross studies of the deep dorsal vein in 10 specimens revealed consistently smooth muscle "polsters" the entire length of the vein, with the fibers directed in a longitudinal fashion. Photomicrographs of this structure are shown, and some theoretical notions about the function of this peculiar-appearing anatomic structure are described.

Humans↗
PubMed1980

"Penile blood pressure"--a clarification.

The phrase "penile blood pressure" would appear to be a misnomer. The penis is supplied by six arteries, and blood pressure measurements should be reported in each one. Blood pressure is difficult to measure in the deep cavernosal arteries, which are the most important for erection. Doppler ultrasound studies of arterial pulses in all six arteries are probably of more value than "penile blood pressure" in assessing vascular impotency.

Arteries↗
PubMed1979

Revascularization of corpus cavernosum for erectile failure.

Revascularization of the penis for erectile disability was performed in 10 patients in whom arterial obstruction had been documented. Inferior epigastric artery anastomosis to the corpus cavernosum was not successful, although bypass grafts from the femoral artery to the corpus cavernosum have helped restore potency in 4 of 6 patients. Complications included embolus to the leg, postoperative hemorrhage, and three small hematomas. This procedure can be considered a clinical experiment and would call for more study to assess its ultimate value.

Adult↗
PubMed1979

Phallography: technique and results of nocturnal tumescence monitoring.

Phallography, or nocturnal tumescence monitoring, is a relatively new technique to measure and record nocturnal erections. The technique is most useful in differentiating between organic male erectile disability and psychogenic impotence. It is a relatively simple procedure and the equipment is available commercially. Of 40 recordings done on 17 patients 35 were adequate for interpretation. Six patients had total erectile failure, 9 had various erectile disabilities and 2 were normal. The 2 patients with normal erections represented psychogenic erectile disability. The technique is reliable and can be recommended for general use to separate organic from psychogenic impotence and to define different types of erectile disability.

Adult↗
PubMed1979

Technetium-99 pelvic scan: use in follow-up of penile revascularization bypass operations.

Technetium-99 scans have been tried to demonstrate patency of a graft in patients who have had vascular bypass procedures for vascular impotency. In 4 of 6 patients, patency was demonstrated. The technique is of value in assessing postoperative graft patency of the penile bypass procedures and may obviate the need for postoperative angiography.

Erectile Dysfunction↗
PubMedDate not supplied

Penile revascularization for erectile disability.

Vascular obstruction as a presumed cause of erectile disability is well documented, both in the large hypogastric arteries and in the smaller internal pudendals and their branches to the penis. Diagnostic methods are currently adequate for demonstrating arterial insufficiency and, perhaps, venous insufficiency. The results of the author's nine cases are described, together with the results and description of various procedures done worldwide.

Adult↗