John Carmichael
Overview
Explore the profile of John Carmichael including associated specialties, affiliations and a list of published articles.
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18
Citations
198
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Recent Articles
1.
Bove I, Cheok S, Feng J, Briggs R, Ruzevick J, Cote D, et al.
World Neurosurg
. 2023 Nov;
182:e62-e66.
PMID: 37967742
Objective: According to the 2017 World Health Organization classification of neuro-endocrine tumors, pituitary adenomas (PAs) are classified according to immunoexpression of the pituitary-specific transcription factors (TFs). A small subset of...
2.
Shahrestani S, Strickland B, Carmichael J, Zada G
J Clin Neurosci
. 2021 Sep;
92:45-48.
PMID: 34509260
Introduction: Nelson's syndrome (NS) is a rare complication involving enlargement of an adrenocorticotropic hormone (ACTH) producing tumor in the pituitary following bilateral adrenalectomy in Cushing's syndrome. Here, we explore the...
3.
Shahrestani S, Cardinal T, Micko A, Strickland B, Pangal D, Kugener G, et al.
Pituitary
. 2021 Feb;
24(4):523-529.
PMID: 33528731
Purpose: Functional pituitary adenomas (FPAs) cause severe neuro-endocrinopathies including Cushing's disease (CD) and acromegaly. While many are effectively cured following FPA resection, some encounter disease recurrence/progression or hormonal non-remission requiring...
4.
Bonert V, Mirocha J, Carmichael J, Yuen K, Araki T, Melmed S
J Clin Endocrinol Metab
. 2020 Aug;
105(9).
PMID: 32754748
Context: Combination therapy with somatostatin receptor ligand (SRL) plus pegvisomant for patients with acromegaly is recommended after a maximizing dose on monotherapy. Lower-dose combination regimens are not well studied. Objective:...
5.
Tucker D, Penn M, Brunswick A, Uttarwar V, Gogia A, Marietta M, et al.
World Neurosurg
. 2020 Jul;
143:e60-e69.
PMID: 32603864
Background: In patients with residual or recurrent nonfunctioning pituitary adenomas (NFPAs) after transsphenoidal resection, both GammaKnife (GKRS) and CyberKnife (CKRS) stereotactic radiosurgery (SRS) are viable treatment options. Objectives: We report...
6.
Cardinal T, Rutkowski M, Micko A, Shiroishi M, Liu C, Wrobel B, et al.
Neurosurg Focus
. 2020 Jun;
48(6):E10.
PMID: 32480366
Objective: Acromegaly is a disease of acral enlargement and elevated serum levels of insulin-like growth factor-1 (IGF-1) and growth hormone (GH), usually caused by a pituitary adenoma. A lack of...
7.
Pangal D, Chesney K, Memel Z, Bonney P, Strickland B, Carmichael J, et al.
World Neurosurg
. 2020 Feb;
137:e366-e372.
PMID: 32032792
Background: The management of pituitary apoplexy, caused by acute hemorrhage and/or infarction of a pituitary adenoma, is debated. Objective: To analyze clinical characteristics of patients undergoing endoscopic endonasal approaches (EEAs)...
8.
Bakhsheshian J, Wheeler S, Strickland B, Pham M, Rennert R, Carmichael J, et al.
Oper Neurosurg (Hagerstown)
. 2018 May;
16(2):127-135.
PMID: 29767762
Background: Endonasal transsphenoidal surgery (ETSS) remains the preferred treatment for recurrent or residual nonfunctional pituitary adenomas (NFPAs). However, surgical complications and outcomes with repeat ETSS are unclear. Objective: To compare...
9.
Bonert V, Carmichael J, Wu Z, Mirocha J, Perez D, Clarke N, et al.
Pituitary
. 2017 Dec;
21(1):65-75.
PMID: 29218459
Purpose: Measuring IGF-1, a biomarker for GH activity, is critical to evaluating disordered hypothalamic-pituitary GH axis. Inconsistent IGF-1 measurements among different immunoassays are well documented. We switched from Immulite 2000...
10.
Strickland B, Pham M, Bakhsheshian J, Carmichael J, Weiss M, Zada G
World Neurosurg
. 2017 Oct;
109:467-470.
PMID: 29079259
Background: Noniatrogenic pituitary abscess remains a rare clinical entity, and is the indication for surgery in <1% of transsphenoidal approaches. Correct diagnosis of this rare entity is often delayed. Without...