Katie Alexandra O’cOnnell
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
The organizations / institutes from the scholar's other articles in the past ten years
Research Subjects
Katie Alexandra O’cOnnell has a total of 139 co-authors. Here are the top co-authors by number of shared publications:
Fadi Murad
Brigham & Women's/Dana‐Farber Cancer Institute, Harvard Medical School Boston Massachusetts USA
4 shared publications- Kathleen M. Mulligan
Case Western Reserve University School of Medicine , Cleveland, OH , USA
4 shared publications - Robert Paul Dellavalle
Department of Dermatology, University of Minnesota, Minneapolis, MN, United States
4 shared publications - Abby S. Van Voorhees
Department of Dermatology, Eastern Virginia Medical School, Norfolk, VA, USA
3 shared publications Anthony M. Rossi
Division of Dermatology Memorial Sloan Kettering Cancer Center New York New York USA
3 shared publications- Areebah Ahmad
The University of Texas Health Science Center at Houston John P and Katherine G McGovern Medical School, Houston, Texas, United States
3 shared publications
Latest Publications
- 11 March 2026
- Published by Elsevier in Journal of Investigative Dermatology
- Vol. 146 (8) , 2325-2329.e6
Human dorsal root ganglion–based itch subcluster mapping and pathway analysis through single-nucleus RNA sequencing
- 11 March 2026
- Published by Elsevier in Journal of Investigative Dermatology
- Vol. 146 (8) , 2325-2329.e6
Human dorsal root ganglion–based itch subcluster mapping and pathway analysis through single-nucleus RNA sequencing
- 28 February 2026
- Published by Wiley in Journal of the European Academy of Dermatology and Venereology
- Vol. 40 (9)
Total margin control surgery achieves local control in four high‐stage penile squamous cell carcinoma cases
- 28 February 2026
- Published by Wiley in Journal of the European Academy of Dermatology and Venereology
- Vol. 40 (9)
Total margin control surgery achieves local control in four high‐stage penile squamous cell carcinoma cases
- 21 November 2024
- Published by Oxford University Press (OUP) in Clinical and Experimental Dermatology
- Vol. 50 (5) , 1037-1038
Evaluating the content and utilization of ultraviolet index smartphone applications
Sun protection has become popular within mainstream culture. A common way for people to obtain information on sun protection and monitor their sun exposure is through mobile applications (apps). Our study focuses on the popularity and utility of ultraviolet (UV) index apps. Data on UV app popularity, rating, pricing and functionality was collected from Google and Apple app markets. The most common functions of UV apps, other than displaying current UV levels, were UV index notifications and providing skin assessments. A minority of apps were published by medical and governmental organizations. Our study demonstrates an area in which dermatologists can advance public understanding of skin protection.
- 21 November 2024
- Published by Oxford University Press (OUP) in Clinical and Experimental Dermatology
- Vol. 50 (5) , 1037-1038
Evaluating the content and utilization of ultraviolet index smartphone applications
Sun protection has become popular within mainstream culture. A common way for people to obtain information on sun protection and monitor their sun exposure is through mobile applications (apps). Our study focuses on the popularity and utility of ultraviolet (UV) index apps. Data on UV app popularity, rating, pricing and functionality was collected from Google and Apple app markets. The most common functions of UV apps, other than displaying current UV levels, were UV index notifications and providing skin assessments. A minority of apps were published by medical and governmental organizations. Our study demonstrates an area in which dermatologists can advance public understanding of skin protection.
- 6 June 2024
- Published by Wiley in Journal of the European Academy of Dermatology and Venereology
- Vol. 39 (3) , 576-585
Factors predictive of recurrence, metastasis and death in node‐negative penile squamous cell carcinoma: A retrospective multicentre cohort study
Background: Penile squamous cell carcinoma (PSCC) carries significant morbidity and mortality. Literature is limited regarding prognostic factors, especially prognostic factors for development of metastasis.Objectives: To identify independent prognostic factors associated with poor outcomes, defined as local recurrence (LR), metastasis and disease‐specific death (DSD) in clinically node‐negative PSCC undergoing local therapy.Methods: Thirty‐two‐year Retrospective Multicenter Cohort Study of 265 patients with histologically diagnosed PSCC at three tertiary care centres. Predictive models based on patient or tumour characteristics were developed.Results: Local recurrence occurred in 56 patients, metastasis in 52 patients and DSD in 40 patients. In multivariable models, the following five factors were independent prognostic factors based on subhazard ratio (SHR): history of balanitis (LR SHR: 2.3; 95% CI 1.2–4.2), poor differentiation (metastasis SHR 1.9; 95% CI 1.0–3.6), invasion into the corpora (metastasis SHR: 3.0; 95% CI 1.5–5.8 and DSD SHR: 4.5; 95% CI 1.7–12.1), perineural invasion (PNI) (metastasis SHR: 2.8; 95% CI 1.4–5.5 and DSD SHR: 3.5; 95% CI, 1.6–7.8) and a history of phimosis (DSD SHR: 2.5; 95% CI 1.2–5.3). The 5‐year cumulative incidence of metastasis was higher for tumours with PNI [cumulative incidence function (CIF) = 55%, 95% CI 38–75 vs. CIF 15%, 95% CI 11–22], corporal invasion (CIF: 35%, 95% CI 26–47 vs. 12%, 95% CI 7–19) and poorly differentiated tumours (CIF = 46%, 95% CI 31–64 vs. CIF 15%, 95% CI 11–22).Conclusions: History of balanitis, history of phimosis, PNI, corporal invasion and poor differentiation are independent risk factors associated with poor outcomes. Since poor differentiation and PNI currently constitute only T1b disease, prognostic staging can likely be improved.
- 6 June 2024
- Published by Wiley in Journal of the European Academy of Dermatology and Venereology
- Vol. 39 (3) , 576-585
Factors predictive of recurrence, metastasis and death in node‐negative penile squamous cell carcinoma: A retrospective multicentre cohort study
Background: Penile squamous cell carcinoma (PSCC) carries significant morbidity and mortality. Literature is limited regarding prognostic factors, especially prognostic factors for development of metastasis.Objectives: To identify independent prognostic factors associated with poor outcomes, defined as local recurrence (LR), metastasis and disease‐specific death (DSD) in clinically node‐negative PSCC undergoing local therapy.Methods: Thirty‐two‐year Retrospective Multicenter Cohort Study of 265 patients with histologically diagnosed PSCC at three tertiary care centres. Predictive models based on patient or tumour characteristics were developed.Results: Local recurrence occurred in 56 patients, metastasis in 52 patients and DSD in 40 patients. In multivariable models, the following five factors were independent prognostic factors based on subhazard ratio (SHR): history of balanitis (LR SHR: 2.3; 95% CI 1.2–4.2), poor differentiation (metastasis SHR 1.9; 95% CI 1.0–3.6), invasion into the corpora (metastasis SHR: 3.0; 95% CI 1.5–5.8 and DSD SHR: 4.5; 95% CI 1.7–12.1), perineural invasion (PNI) (metastasis SHR: 2.8; 95% CI 1.4–5.5 and DSD SHR: 3.5; 95% CI, 1.6–7.8) and a history of phimosis (DSD SHR: 2.5; 95% CI 1.2–5.3). The 5‐year cumulative incidence of metastasis was higher for tumours with PNI [cumulative incidence function (CIF) = 55%, 95% CI 38–75 vs. CIF 15%, 95% CI 11–22], corporal invasion (CIF: 35%, 95% CI 26–47 vs. 12%, 95% CI 7–19) and poorly differentiated tumours (CIF = 46%, 95% CI 31–64 vs. CIF 15%, 95% CI 11–22).Conclusions: History of balanitis, history of phimosis, PNI, corporal invasion and poor differentiation are independent risk factors associated with poor outcomes. Since poor differentiation and PNI currently constitute only T1b disease, prognostic staging can likely be improved.
- 31 May 2024
- Published by Springer Nature in Archives of Dermatological Research
- Vol. 316 (6) , 1-2
Virtual state-wide dermatology advocacy day promotes advocacy efforts amongst medical trainees
- 31 May 2024
- Published by Springer Nature in Archives of Dermatological Research
- Vol. 316 (6) , 1-2
Virtual state-wide dermatology advocacy day promotes advocacy efforts amongst medical trainees
- Open Access
- 22 May 2024
- Published by Wiley in Pediatric Dermatology
- Vol. 41 (4) , 674-676
The American Academy of Dermatology's “Good Skin Knowledge” program enhances children and adolescents' confidence regarding dermatologic knowledge
The American Academy of Dermatology (AAD) has resources meant to be used by children. Herein, we discuss the Good Skin Knowledge (GSK) curriculum, which was created to educate youth aged 8-13 about common dermatologic conditions to promote healthy skin habits, build self-confidence, and encourage careers in science and medicine. To assess participants' confidence regarding understanding and retention of GSK materials, the authors developed a pre- and post-training survey consisting of 10 questions. Results of our survey demonstrate a significant improvement in participants confidence regarding knowledge of skin function and care with at least two thirds of youth surveyed indicating understanding across all areas, with the largest gains centered around knowledge of the three skin layers, knowing what a dermatologist does, and appreciating the causes of acne.
- 22 May 2024
- Published by Wiley in Pediatric Dermatology
- Vol. 41 (4) , 674-676
Open AccessThe American Academy of Dermatology's “Good Skin Knowledge” program enhances children and adolescents' confidence regarding dermatologic knowledge
The American Academy of Dermatology (AAD) has resources meant to be used by children. Herein, we discuss the Good Skin Knowledge (GSK) curriculum, which was created to educate youth aged 8-13 about common dermatologic conditions to promote healthy skin habits, build self-confidence, and encourage careers in science and medicine. To assess participants' confidence regarding understanding and retention of GSK materials, the authors developed a pre- and post-training survey consisting of 10 questions. Results of our survey demonstrate a significant improvement in participants confidence regarding knowledge of skin function and care with at least two thirds of youth surveyed indicating understanding across all areas, with the largest gains centered around knowledge of the three skin layers, knowing what a dermatologist does, and appreciating the causes of acne.
- Open Access
- 21 May 2024
- Published by JMIR Publications Inc. in JMIR Dermatology
- Vol. 7 (1) , e40819
Gender Parity Analysis of the Editorial Boards of Influential Dermatology Journals: Cross-Sectional Study
This study underscores the persistent underrepresentation of women in academic dermatology leadership positions by examining the gender composition of editorial boards across top dermatology journals, emphasizing the urgent need for proactive strategies to promote diversity, equity, and inclusion.
- 21 May 2024
- Published by JMIR Publications Inc. in JMIR Dermatology
- Vol. 7 (1) , e40819
Open AccessGender Parity Analysis of the Editorial Boards of Influential Dermatology Journals: Cross-Sectional Study
This study underscores the persistent underrepresentation of women in academic dermatology leadership positions by examining the gender composition of editorial boards across top dermatology journals, emphasizing the urgent need for proactive strategies to promote diversity, equity, and inclusion.
- 1 January 2024
- Published by Wolters Kluwer Health in Journal of Urology
- Vol. 211 (1) , 90-100
Total Margin Control Is Superior to Traditional Margin Assessment for Treatment of Low-Stage Penile Squamous Cell Carcinoma
Penile cancer is rare, with significant morbidity and limited literature assessing utility of peripheral and deep en face margin assessment (PDEMA) versus traditional margin assessment (vertical sections) on treatment outcomes. 32-year Retrospective Multicenter Cohort Study at 3 academic tertiary care centers. Cohort of 189 patients with histologic diagnosis of in situ or T1a cutaneous squamous cell carcinoma of the penis at Brigham and Women's, Massachusetts General Hospital (1988-2020), and Memorial Sloan Kettering Cancer Center (1995-2020) treated with PDEMA surgical excision, excision/circumcision, or penectomy/glansectomy. Local recurrence, metastasis, and disease-specific death were assessed via multivariable Cox proportional hazard models. The cohort consisted of 189 patients. Median age at diagnosis was 62 years. Median tumor diameter was 1.3 centimeters. The following outcomes of interest occurred: 30 local recurrences, 13 metastases, and 5 disease-specific deaths. Primary tumors were excised with PDEMA (N = 30), excision/circumcision (N = 110), or penectomy/glansectomy (N = 49). Of patients treated with traditional margin assessment (non-PDEMA), 12% had narrow or positive margins. 5-year proportions were as follows with respect to local recurrence-free survival (LRFS), metastasis-free survival (MFS), and disease-specific survival/progression-free survival (DSS/PFS), respectively: 100%, 100%, 100% following PDEMA; 82%, 96%, 99% following excision/circumcision; 83%, 91%, 95% following penectomy/glansectomy. multi-institutional cohort study not externally validated. Initial results are encouraging that PDEMA surgical management effectively controls early-stage penile squamous cell carcinoma.
- 1 January 2024
- Published by Wolters Kluwer Health in Journal of Urology
- Vol. 211 (1) , 90-100
Total Margin Control Is Superior to Traditional Margin Assessment for Treatment of Low-Stage Penile Squamous Cell Carcinoma
Penile cancer is rare, with significant morbidity and limited literature assessing utility of peripheral and deep en face margin assessment (PDEMA) versus traditional margin assessment (vertical sections) on treatment outcomes. 32-year Retrospective Multicenter Cohort Study at 3 academic tertiary care centers. Cohort of 189 patients with histologic diagnosis of in situ or T1a cutaneous squamous cell carcinoma of the penis at Brigham and Women's, Massachusetts General Hospital (1988-2020), and Memorial Sloan Kettering Cancer Center (1995-2020) treated with PDEMA surgical excision, excision/circumcision, or penectomy/glansectomy. Local recurrence, metastasis, and disease-specific death were assessed via multivariable Cox proportional hazard models. The cohort consisted of 189 patients. Median age at diagnosis was 62 years. Median tumor diameter was 1.3 centimeters. The following outcomes of interest occurred: 30 local recurrences, 13 metastases, and 5 disease-specific deaths. Primary tumors were excised with PDEMA (N = 30), excision/circumcision (N = 110), or penectomy/glansectomy (N = 49). Of patients treated with traditional margin assessment (non-PDEMA), 12% had narrow or positive margins. 5-year proportions were as follows with respect to local recurrence-free survival (LRFS), metastasis-free survival (MFS), and disease-specific survival/progression-free survival (DSS/PFS), respectively: 100%, 100%, 100% following PDEMA; 82%, 96%, 99% following excision/circumcision; 83%, 91%, 95% following penectomy/glansectomy. multi-institutional cohort study not externally validated. Initial results are encouraging that PDEMA surgical management effectively controls early-stage penile squamous cell carcinoma.
- 7 December 2023
- Published by Springer Nature in Archives of Dermatological Research
- Vol. 316 (1) , 1-5
Crowdfunding to alleviate financial burdens among patients with epidermolysis bullosa
- 7 December 2023
- Published by Springer Nature in Archives of Dermatological Research
- Vol. 316 (1) , 1-5
Crowdfunding to alleviate financial burdens among patients with epidermolysis bullosa
- 29 September 2023
- Published by Oxford University Press (OUP) in Clinical and Experimental Dermatology
- Vol. 49 (2) , 172-173
Review of therapeutic trends in clinical trials for hidradenitis suppurativa: the rise of biologics and demographic under-representation
We assessed interventional clinical trials for hidradenitis suppurativa from 2006 to 2021 noting patient demographics, intervention types and reported outcomes. We report and analyse the emerging trend towards biologic treatments. We also discuss that across studies, more consistent documentation of patient characteristics as well as more variable intervention types may broaden trial generalizability and provide benefit to more patients.
- 29 September 2023
- Published by Oxford University Press (OUP) in Clinical and Experimental Dermatology
- Vol. 49 (2) , 172-173
Review of therapeutic trends in clinical trials for hidradenitis suppurativa: the rise of biologics and demographic under-representation
We assessed interventional clinical trials for hidradenitis suppurativa from 2006 to 2021 noting patient demographics, intervention types and reported outcomes. We report and analyse the emerging trend towards biologic treatments. We also discuss that across studies, more consistent documentation of patient characteristics as well as more variable intervention types may broaden trial generalizability and provide benefit to more patients.