Colleen M. Ryan

Prof. Colleen M. Ryan

Massachusetts General Hospital, Harvard Medical Schoo Rm 221 Shriners Hospitals for Children, Boston, MA 02114, USA
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Research Focus & Metrics

Academic Career Length

49Years (1978-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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5 February 1998 in New England Journal of Medicine
Verified
Journal Article
Closed access
PDF file
Colleen M. RyanColleen M. Ryan
Colleen M. Ryan
DSDavid A. Schoenfeld
David A. Schoenfeld
WTWilliam P. Thorpe
William P. Thorpe
RSRobert L. Sheridan
Robert L. Sheridan
ECEdwin H. Cassem
Edwin H. Cassem
RTRonald G. Tompkins
Ronald G. Tompkins
Over the past 20 years, there has been remarkable improvement in the chances of survival of patients treated in burn centers. A simple, accurate system for objectively estimating the probability of death would be useful in counseling patients and making medical decisions.

1 January 2003 in Journal of Burn Care & Rehabilitation
Verified
Journal Article
Closed access
DHDavid M. Heimbach
David M. Heimbach
GWGlenn D. Warden
Glenn D. Warden
ALArnold Luterman
Arnold Luterman
MJMarion H. Jordan
Marion H. Jordan
NONathan Ozobia
Nathan Ozobia
ADAlan R. Dimick
Alan R. Dimick
The safety and effectiveness of Integra® Dermal Regeneration Template was evaluated in a postapproval study involving 216 burn injury patients who were treated at 13 burn care facilities in the United States. The mean total body surface area burned was 36.5% (range, 1–95%). Integra® was applied to fresh, clean, surgically excised burn wounds. Within 2 to 3 weeks, the dermal layer regenerated, and a thin epidermal autograft was placed. The incidence of invasive infection at Integra®-treated sites was 3.1% (95% confidence interval, 2.0–4.5%) and that of superficial infection 13.2% (95% confidence interval, 11.0–15.7%). Mean take rate of Integra® was 76.2%; the median take rate was 95%. The mean take rate of epidermal autograft was 87.7%; the median take rate was 98%. This postapproval study further supports the conclusion that Integra® is a safe and effective treatment modality in the hands of properly trained clinicians under conditions of routine clinical use at burn centers.

5 January 2000 in JAMA
Verified
Journal Article
Open access
PDF file
RSRobert L. Sheridan
Robert L. Sheridan
MHMichelle I. Hinson
Michelle I. Hinson
MLMatthew H. Liang
Matthew H. Liang
ANAnita F. Nackel
Anita F. Nackel
DSDavid A. Schoenfeld
David A. Schoenfeld
RTRonald G. Tompkins
Ronald G. Tompkins
The successful treatment of massive burn injuries is one of the major advances in trauma care of the last 20 years. Before the 1970s, a burn involving more than one third of the body surface was almost always fatal; the few patients who did not die from burn shock during the first few postinjury days died from wound sepsis in the subsequent weeks.1 Improved fluid and electrolyte management and critical care combined with early wound excision and closure2,3 have had a profound impact on the natural history of such injuries.4-6 Although it has become possible to save the lives of massively burned children,7 the wisdom of doing so has become a health policy and ethical question.

1 May 2000 in Journal of Burn Care & Rehabilitation
Verified
Journal Article
Closed access
JSJ. T. Schulz
J. T. Schulz
RSR. L. Sheridan
R. L. Sheridan
Colleen M. RyanColleen M. Ryan
Colleen M. Ryan
BMB. MacKool
B. MacKool
RTR. G. Tompkins
R. G. Tompkins
Toxic epidermal necrolysis is a devastating medication-induced desquamation disorder with a reported mortality rate of 30% to 60% in adults. Data from previously reported series suggest that age, delay in referral to a burn center, total body surface area (TBSA) involvement, and systemic steroid treatment are poor prognostic indicators. We reviewed the records of 39 patients treated in our burn center over the past 10 years and found that the mortality rate was significantly correlated with age, thrombocytopenia, and delay in presentation. Steroid treatment and TBSA involvement were not significantly related to the mortality rate. Thirty-nine adult patients with greater than 20% TBSA epithelial necrosis were cared for in our center from January 1987 to March 1998. Wounds were treated with topical antimicrobial medications and porcine xenografts in a bacteria-controlled nursing unit. We reviewed the records of these patients for 28 clinical characteristics and looked for clinical correlates of mortality by single analysis of variance. The mortality rate was 44% (17 of 39 patients); the cause of death was most commonly multiple-organ dysfunction syndrome, for which a microbial etiologic agent was not always identified. Autopsies were performed on 11 of the 17 patients who died; there was evidence of multiple-organ damage. The patients who survived and the patients who died did not differ significantly in TBSA epithelial necrosis (66% ± 6% vs 72% ± 5%, respectively), admission platelets, number of nosocomial infections, number of complications, preadmission exposure to steroids, or extent of mucosal involvement. When compared with the patients who died, the patients who survived were (1) 20 years younger (47.5 ± 4.2 years vs 64.5 ± 5.3 years), (2) admitted to the hospital sooner after the onset of their rash (3.5 ± 0.4 days vs 5.9 ± 1.0 days), (3) much less likely to experience early thrombocytopenia (platelet nadir, 154 ± 24 vs 70 ± 18), (4) more likely to be febrile on presentation, and (5) less likely to have been treated with antibiotics before referral to our unit. These differences were statistically significant. The most common etiologic agents were antibiotics, anticonvulsants, and nonsteroidal anti-inflammatory drugs. Our results for a group of older patients with toxic epidermal necrolysis with extensive skin involvement suggest that age, delay in hospitalization, thrombocytopenia, and early empiric antibiotic treatment are associated with a poor prognosis. (J Burn Care Rehabil 2000;21:199-204)

1 May 1999 in Journal of Parenteral and Enteral Nutrition
Verified
Journal Article
Closed access
PDF file
YYYoung‐Ming Yu
Young‐Ming Yu
RTRonald G. Tompkins
Ronald G. Tompkins
Colleen M. RyanColleen M. Ryan
Colleen M. Ryan
VYVernon R. Young
Vernon R. Young

1 March 1995 in The Journal of Trauma: Injury, Infection, and Critical Care
Verified
Journal Article
Closed access
RSRobert L. Sheridan
Robert L. Sheridan
JHJane Hurley
Jane Hurley
MSMonica A. Smith
Monica A. Smith
Colleen M. RyanColleen M. Ryan
Colleen M. Ryan
CBConrado C. Bondoc
Conrado C. Bondoc
JBJohn F. Burke
John F. Burke
Optimal hand function has a very positive impact on the quality of survival after burn injury. Over a 10-year period, 659 patients with 1047 acutely burned hands were managed at the Summer Redstone Burn Center of the Massachusetts General Hospital. Our approach to acutely burned hands emphasizes ranging and splinting throughout hospitalization, prompt sheet autograft wound closure as soon as practical, and the selective use of axial pin fixation and flaps. This approach is associated with normal function in 97% of those with superficial injuries and 81% of those with deep dermal and full-thickness injuries requiring surgery. Although only 9% of those with injuries involving the extensor mechanism, joint capsule, or bone had normal functional outcomes, 90% were able to independently perform activities of daily living.