Alex Ortega Loayza

Assistant Professor

  • 563 Citations
  • 13 h-Index
20062019

Research output per year

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Research Output

2019

A Comprehensive Review of Local Pharmacologic Therapy for Pyoderma Gangrenosum

Baltazar, D., Haag, C., Gupta, A. S., Marzano, A. M. & Ortega Loayza, A., Jun 1 2019, In : Wounds : a compendium of clinical research and practice. 31, 6, p. 151-157 7 p.

Research output: Contribution to journalArticle

1 Scopus citations

Asociación entre la hidradenitis supurativa y el síndrome metabólico: Revisión sistemática y metaanálisis

Translated title of the contribution: Association Between Hidradenitis Suppurativa and Metabolic Syndrome: A Systematic Review and Meta-analysisRodríguez-Zuñiga, M. J. M., García-Perdomo, H. A. & Ortega Loayza, A., May 1 2019, In : Actas Dermo-Sifiliograficas. 110, 4, p. 279-288 10 p.

Research output: Contribution to journalArticle

2 Scopus citations

Carcinoma Erysipeloides From Metastatic Cutaneous Squamous Cell Carcinoma Initially Mistaken for Intralymphatic Histiocytosis

Heath, M. S., Slaught, C., Ortega Loayza, A. & Mengden, S., Jul 1 2019, In : The American Journal of dermatopathology. 41, 7, p. 522-525 4 p.

Research output: Contribution to journalArticle

2 Scopus citations

Characterisation and diagnosis of ulcers in inpatient dermatology consultation services: A multi-centre study

Haynes, D., Hammer, P., Malachowski, S. J., Kaffenberger, B., Yi, J. S., Vera, N., Calhoun, C., Shinohara, M. M., Seminario-Vidal, L., Trinidad, J. C., Keller, J. J. & Ortega-Loayza, A. G., Dec 1 2019, In : International Wound Journal. 16, 6, p. 1440-1444 5 p.

Research output: Contribution to journalArticle

1 Scopus citations
3 Scopus citations

Clinical Features of Neutrophilic Dermatosis Variants Resembling Necrotizing Fasciitis

Sanchez, I. M., Lowenstein, S., Johnson, K. A., Babik, J., Haag, C., Keller, J. J., Ortega Loayza, A., Cohen, J., McCalmont, T. H., Demer, A. M., Mansh, M. D., Hylwa, S. A., Liu, J. & Shinkai, K., Jan 1 2019, In : JAMA Dermatology. 155, 1, p. 79-84 6 p.

Research output: Contribution to journalArticle

10 Scopus citations

Development and Validation of a Risk Prediction Model for In-Hospital Mortality among Patients with Stevens-Johnson Syndrome/Toxic Epidermal Necrolysis - ABCD-10

Noe, M. H., Rosenbach, M., Hubbard, R. A., Mostaghimi, A., Cardones, A. R., Chen, J. K., Cotliar, J., Davis, M. D. P., Dominguez, A., Fox, L. P., Hughey, L. C., Kaffenberger, B. H., Kroshinsky, D., Kwong, B. Y., Miller, D. D., Musiek, A., Ortega Loayza, A., Sharon, V. R., Shinkai, K., Summers, E. M. & 6 others, Wanat, K. A., Wetter, D. A., Worswick, S., Margolis, D. J., Gelfand, J. M. & Micheletti, R. G., Apr 1 2019, In : JAMA Dermatology. 155, 4, p. 448-454 7 p.

Research output: Contribution to journalArticle

11 Scopus citations

Do i Have Calciphylaxis?

Keller, J. J. & Ortega-Loayza, A. G., Jul 2019, In : JAMA Dermatology. 155, 7, 1 p.

Research output: Contribution to journalComment/debate

Extracutaneous involvement of pyoderma gangrenosum

Borda, L. J., Wong, L. L., Marzano, A. V. & Ortega-Loayza, A. G., Aug 9 2019, In : Archives of Dermatological Research. 311, 6, p. 425-434 10 p.

Research output: Contribution to journalReview article

5 Scopus citations

Insights Into the Pathogenesis of Sweet's Syndrome

Heath, M. S. & Ortega Loayza, A., Jan 1 2019, In : Frontiers in immunology. 10, 1 p.

Research output: Contribution to journalReview article

Open Access
6 Scopus citations

Mechanisms of inflammation in neutrophil-mediated skin diseases

Marzano, A. V., Ortega-Loayza, A. G., Heath, M., Morse, D., Genovese, G. & Cugno, M., Jan 1 2019, In : Frontiers in immunology. 10, MAY, 1059.

Research output: Contribution to journalReview article

Open Access
7 Scopus citations

Primary immunodeficiency, a possible cause of neutrophilic necrotizing dermatosis: In reply

Hylwa, S. A., Ortega-Loayza, A. G. & Shinkai, K., Jul 2019, In : JAMA Dermatology. 155, 7, p. 864-865 2 p.

Research output: Contribution to journalLetter

Pyoderma gangrenosum: a too often overlooked facultative paraneoplastic disease

Gupta, A. S. & Ortega-Loayza, A. G., Sep 1 2019, In : Annals of hematology. 98, 9, p. 2247-2248 2 p.

Research output: Contribution to journalLetter

4 Scopus citations

Pyoderma gangrenosum misdiagnosis resulting in amputation: A review

Haag, C. K., Nutan, F., Cyrus, J. W., Satpathy, J., Shinkai, K. & Loayza, A. G. O., Feb 1 2019, In : Journal of Trauma and Acute Care Surgery. 86, 2, p. 307-313 7 p.

Research output: Contribution to journalReview article

2 Scopus citations

Ustekinumab use in patients with severe psoriasis co-infected with hepatitis B and/or C

Siegel, S. A. R., Winthrop, K., Ehst, B. B. & Ortega Loayza, A., Jan 1 2019, (Accepted/In press) In : British Journal of Dermatology.

Research output: Contribution to journalArticle

1 Scopus citations

White concretions on the hair shaft

Liu, M. & Ortega Loayza, A., Jan 1 2019, In : Cutis. 103, 1, p. E8-E9

Research output: Contribution to journalComment/debate

2018

Antidesmoglein 1 and 3 antibodies in healthy subjects of a population in the Peruvian high amazon

Ramos, W., Díaz, J., Gutierrez, E. L., Lazarte, J. S., Bohnett, M. C., Ronceros, G. & Ortega Loayza, A., Mar 1 2018, In : International Journal of Dermatology. 57, 3, p. 344-348 5 p.

Research output: Contribution to journalArticle

Biologic and small-molecule medications in the management of pyoderma gangrenosum

McKenzie, F., Cash, D., Gupta, A., Cummings, L. W. & Ortega Loayza, A., Jan 1 2018, (Accepted/In press) In : Journal of Dermatological Treatment.

Research output: Contribution to journalArticle

3 Scopus citations

Diagnosis and management of peristomal pyoderma gangrenosum: A systematic review

Afifi, L., Sanchez, I. M., Wallace, M. M., Braswell, S. F., Ortega Loayza, A. & Shinkai, K., Jun 1 2018, In : Journal of the American Academy of Dermatology. 78, 6, p. 1195-1204.e1

Research output: Contribution to journalReview article

12 Scopus citations

Diversity in dermatology: Roadmap for improvement

Pritchett, E. N., Pandya, A. G., Ferguson, N. N., Hu, S., Ortega Loayza, A. & Lim, H. W., Aug 1 2018, In : Journal of the American Academy of Dermatology. 79, 2, p. 337-341 5 p.

Research output: Contribution to journalArticle

13 Scopus citations

Dysregulation of inflammatory gene expression in lesional and nonlesional skin of patients with pyoderma gangrenosum

Ortega Loayza, A., Nugent, W. H., Lucero, O. M., Washington, S. L., Nunley, J. R. & Walsh, S. W., Jan 1 2018, In : British Journal of Dermatology. 178, 1, p. e35-e36

Research output: Contribution to journalLetter

Open Access
12 Scopus citations

LPIN2 gene mutation in a patient with overlapping neutrophilic disease (pyoderma gangrenosum and aseptic abscess syndrome)

Marzano, A. V., Ortega-Loayza, A. G., Ceccherini, I. & Cugno, M., Mar 2018, In : JAAD Case Reports. 4, 2, p. 120-122 3 p.

Research output: Contribution to journalArticle

Open Access
3 Scopus citations

Oxidative stress in patients with endemic pemphigus foliaceus and healthy subjects with anti-desmoglein 1 antibodies

Gutierrez, E. L., Seminario-Vidal, L., Ronceros, G., Ramos, W., Tello, M. & Ortega Loayza, A., Mar 1 2018, In : Anais Brasileiros de Dermatologia. 93, 2, p. 212-215 4 p.

Research output: Contribution to journalArticle

Open Access
1 Scopus citations

Pyoderma Gangrenosum: What Do We Know Now?

McKenzie, F., Arthur, M. & Ortega Loayza, A., Sep 1 2018, In : Current Dermatology Reports. 7, 3, p. 147-157 11 p.

Research output: Contribution to journalReview article

4 Scopus citations

Pyoderma Gangrenosum of the Scalp: A Rare Clinical Variant

Gupta, A. S., Nunley, J. R., Feldman, M. J. & Ortega Loayza, A., Feb 1 2018, In : Wounds : a compendium of clinical research and practice. 30, 2, p. E16-E20

Research output: Contribution to journalArticle

2 Scopus citations

Reply to: pyoderma gangrenosum: a clinical conundrum

Gupta, A. S., Greiling, T. & Ortega Loayza, A., Oct 1 2018, In : Journal of the European Academy of Dermatology and Venereology. 32, 10, p. e382

Research output: Contribution to journalLetter

Reply to: “Wound management strategies in Stevens-Johnson syndrome/toxic epidermal necrolysis: An unmet need”

Castillo, B., Vera, N., Ortega Loayza, A. & Seminario-Vidal, L., Oct 1 2018, In : Journal of the American Academy of Dermatology. 79, 4, p. e89

Research output: Contribution to journalLetter

Stevens-Johnson Syndrome/Toxic Epidermal Necrolysis: A Multicenter Retrospective Study of 377 Adult Patients from the United States

Micheletti, R. G., Chiesa-Fuxench, Z., Noe, M. H., Stephen, S., Aleshin, M., Agarwal, A., Boggs, J., Cardones, A. R., Chen, J. K., Cotliar, J., Davis, M. D. P., Dominguez, A., Fox, L. P., Gordon, S., Hamrick, R., Ho, B., Hughey, L. C., Jones, L. M., Kaffenberger, B. H., Kindley, K. & 22 others, Kroshinsky, D., Kwong, B. Y., Miller, D. D., Mostaghimi, A., Musiek, A., Ortega-Loayza, A. G., Patel, R., Posligua, A., Rani, M., Saluja, S., Sharon, V. R., Shinkai, K., St. John, J., Strickland, N., Sun, N., Wanat, K. A., Wetter, D. A., Worswick, S., Yang, C., Margolis, D. J., Gelfand, J. M. & Rosenbach, M., Nov 2018, In : Journal of Investigative Dermatology. 138, 11, p. 2315-2321 7 p.

Research output: Contribution to journalArticle

19 Scopus citations

Treatment of an ulcerated hemangioma with dehydrated human amnion/chorion membrane allograft

Bacik, L., Dhossche, J., Ortega Loayza, A. & Funk, T., Oct 1 2018, In : JAAD Case Reports. 4, 9, p. 890-892 3 p.

Research output: Contribution to journalArticle

Open Access
2 Scopus citations

Update on calciphylaxis etiopathogenesis, diagnosis, and management

Khanna, U., Dominguez, A., Keller, J., Kroshinsky, D., Ortega Loayza, A., Strowd, L. & Micheletti, R. G., Dec 1 2018, In : Cutis. 102, 6, p. 395-400 6 p.

Research output: Contribution to journalArticle

Wound care for Stevens-Johnson syndrome and toxic epidermal necrolysis

Castillo, B., Vera, N., Ortega Loayza, A. & Seminario-Vidal, L., Oct 1 2018, In : Journal of the American Academy of Dermatology. 79, 4, p. 764-767.e1

Research output: Contribution to journalArticle

5 Scopus citations
2017

Cutaneous Lupus: A Brief Review of Old and New Medical Therapeutic Options

Nutan, F. & Ortega Loayza, A., Oct 1 2017, In : Journal of Investigative Dermatology Symposium Proceedings. 18, 2, p. S64-S68

Research output: Contribution to journalReview article

Open Access
5 Scopus citations

Drug-induced pyoderma gangrenosum: a model to understand the pathogenesis of pyoderma gangrenosum

Wu, B. C., Patel, E. D. & Ortega Loayza, A., Jul 1 2017, In : British Journal of Dermatology. 177, 1, p. 72-83 12 p.

Research output: Contribution to journalReview article

22 Scopus citations

Incidental skin malignancies in teledermatology and in-person cohorts in the Veterans Affairs Health System

Keleshian, V., Ortega Loayza, A. & Tarkington, P., Nov 1 2017, In : Journal of the American Academy of Dermatology. 77, 5, p. 965-966 2 p.

Research output: Contribution to journalArticle

Ocular pyoderma gangrenosum: A systematic review

Gupta, A. S. & Ortega Loayza, A., Mar 1 2017, In : Journal of the American Academy of Dermatology. 76, 3, p. 512-518 7 p.

Research output: Contribution to journalArticle

5 Scopus citations

Somatic symptom disorder in dermatology

Levenson, J. L., Sharma, A. A. & Ortega-Loayza, A. G., May 2017, In : Clinics in Dermatology. 35, 3, p. 246-251 6 p.

Research output: Contribution to journalArticle

3 Scopus citations
2016

Aortic endograft and epithelioid sarcoma: A random association or causality?

Tiwari, N., Krishna, S. & Ortega Loayza, A., Jul 1 2016, In : Journal of Drugs in Dermatology. 15, 7, p. 897-899 3 p.

Research output: Contribution to journalArticle

1 Scopus citations

Calciphylaxis with evidence of hypercoagulability successfully treated with unfractionated heparin: A multidisciplinary approach

Carter, A., Ortega Loayza, A., Barrett, J. & Nunley, J. R., Apr 1 2016, In : Clinical and Experimental Dermatology. 41, 3, p. 275-278 4 p.

Research output: Contribution to journalArticle

2 Scopus citations

Pyoderma gangrenosum and pregnancy: An example of abnormal inflammation and challenging treatment

Steele, R. B., Nugent, W. H., Braswell, S. F., Frisch, S., Ferrell, J. & Ortega Loayza, A., Jan 1 2016, In : British Journal of Dermatology. 174, 1, p. 77-87 11 p.

Research output: Contribution to journalArticle

15 Scopus citations

Scattered targetoid papules and mucosal erosions after vaccination

Leib, A. E., Steele, R. B. & Ortega Loayza, A., Oct 1 2016, In : Journal of the American Academy of Dermatology. 75, 4, p. e129-e130

Research output: Contribution to journalArticle

2015

Acute generalized exanthematous pustulosis: Atypical presentations and outcomes

Kostopoulos, T. C., Krishna, S. M., Brinster, N. K. & Ortega-Loayza, A. G., Feb 1 2015, In : Journal of the European Academy of Dermatology and Venereology. 29, 2, p. 209-214 6 p.

Research output: Contribution to journalReview article

21 Scopus citations

Dapsone and Autoimmune Bullous Disorders

Werth, V. P. & Ortega-Loayza, A. G., Jan 1 2015, Blistering Diseases: Clinical Features, Pathogenesis, Treatment. Springer Berlin Heidelberg, p. 493-499 7 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Molecular characterization and antifungal susceptibility of Cryptococcus neoformans strains collected from a single institution in Lima, Peru

Bejar, V., Tello, M., García, R., Guevara, J. M., Gonzales, S., Vergaray, G., Valencia, E., Abanto, E., Ortega-Loayza, A. G., Hagen, F. & Gutierrez, E. L., Apr 1 2015, In : Revista Iberoamericana de Micologia. 32, 2, p. 88-92 5 p.

Research output: Contribution to journalArticle

7 Scopus citations

Pathophysiology of Pyoderma Gangrenosum

Tiwari, N., Kostopoulos, T. C. & Ortega Loayza, A., Jan 1 2015, Advances in Medicine and Biology. Nova Science Publishers, Inc., Vol. 83. p. 1-12 12 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Pathophysiology of pyoderma gangrenosum (PG): An updated review

Braswell, S. F., Kostopoulos, T. C. & Ortega-Loayza, A. G., Oct 1 2015, In : Journal of the American Academy of Dermatology. 73, 4, p. 691-698 8 p.

Research output: Contribution to journalReview article

94 Scopus citations

Pyoderma gangrenosum after open heart surgery: A rare and challenging postoperative complication

Kostopoulos, T. C., Ortega-Loayza, A. G., Francis, J., Maiberger, M. P., Brinster, N. K., Brinster, D. R., Feldman, M. J. & Nunley, J. R., Feb 1 2015, In : Chirurgia (Turin). 28, 1, p. 37-41 5 p.

Research output: Contribution to journalArticle

2 Scopus citations

Vulvar edema and weight loss in a pediatric patient

Gupta, A. S., O'Connor, P. W. & Ortega-Loayza, A. G., Dec 2015, In : Journal of the American Academy of Dermatology. 73, 6, p. e193-e194

Research output: Contribution to journalArticle

2014

A rapidly progressive and fatal case of atypical acute generalized exanthematous pustulosis

Krishna, S., Ortega-Loayza, A., Malakouti, N. & Brinster, N., Sep 2014, In : Journal of the American Academy of Dermatology. 71, 3, p. e89-e90

Research output: Contribution to journalArticle

Open Access
7 Scopus citations
2013

Amlodipine-induced subacute cutaneous lupus

Ortega-Loayza, A. G., McCall, C. O., Cooke, R. H. & Jovin, I. S., Mar 1 2013, In : North American Journal of Medical Sciences. 5, 3, p. 246-247 2 p.

Research output: Contribution to journalLetter

4 Scopus citations