In this recent Medscape InDiscussion podcast Dr. Marwah Abdalla welcomes PWN’s Dr. Lewis Blevins to talk about secondary hypertension. This episode focuses on Cushing syndrome, an often overlooked cause of secondary hypertension. We’ll discuss why
Dr. Blevins Corner
Medical comments from Dr. Lewis Blevins MD. Director Center for Pituitary Disorders at University California San Francisco
Acromegaly: Postoperative Evaluation.
October 26, 2014
From Lewis S Blevins Jr,. MD – My approach to the postoperative evaluation of patients with acromegaly is based on over a quarter of a century of experience evaluating and treating patients with the disorder.
dDAVP Therapy.
October 20, 2014
From Lewis S Blevins Jr., MD – desamino d-arginine vasopressin…..in case you ever wondered. DDAVP therapy has evolved somewhat over the past quarter of a century. When I started my training one of the common
Pituitary Surgery. Postoperative Followup.
October 16, 2014
From Lewis S Blevins, Jr. MD – All too often, I see patients who come to the clinic with devastating recurrences of their pituitary tumors. For example, the accompanying MRI depicts a recurrent pituitary tumor in
Prolactinoma: Indications for surgery.
October 16, 2014
From Lewis S Blevins Jr., MD – Although dopamine agonist drugs are available to treat prolactinomas I believe some patients with these tumors are probably best treated surgically. Of course, surgery should be performed by
Diabetes insipidus: Polyuria.
October 10, 2014
Polyuria is defined as the passage of excessive quantities of urine. Pollakauria is defined as urinary frequency; in other words, more trips to the bathroom regardless of urine volume. Polyuria is arbitrarily defined as the
Diabetes insipidus: Thirst.
October 10, 2014
From Lewis Blevins, MD – Thirst is really difficult to define. It is best described as a desire to ingest water. This is different from having a dry mouth. Both may, however, occur at the
Hyponatremia
October 10, 2014
From Lewis Blevins, MD – Hyponatremia is the term used to describe low serum sodium levels. A low serum sodium may result from salt losses or else from an excess amount of water in the
Tests of Pituitary Function: Gonadotropins in Men
October 6, 2014
From Lewis Blevins, MD – LH and FSH are produced by the pituitary gland under the regulation of pulsatile secretion of GnRH from the hypothalamus. LH stimulates the Leydig cells of the testes to produce testosterone.
Tests of Pituitary Function: Gonadotropins in Women
October 6, 2014
From Lewis Blevins MD – LH and FSH are produced by the pituitary gland under the regulation of pulsatile secretion of GnRH from the hypothalamus. LH stimulates the thecal cells around a developing egg in
Rathke’s Cleft and other Pituitary Cysts
October 5, 2014
Understand Rathke’s cleft and other pituitary cysts—what they are, how they form, and why naming them matters.
Pineal Gland Cysts.
October 5, 2014
From Lewis Blevins, MD – Pineal cysts are seen in about 2% of all MRI’s of the brain. I see them as perhaps more common in pituitary patients simply because I look at the scans
Tests of Pituitary Function: Prolactin
October 2, 2014
From Lewis Blevins, MD – Photo abstract blend – Prolactin is produced by the anterior pituitary gland. Its secretion is largely regulated by dopamine from the hypothalamus which inhibits prolactin production and release. TRH (which