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Colleen M Johnson

Publications and source records attributed to Colleen M Johnson.

5 recordsLinked to original sources

Advanced endovascular training for vascular residents: what more do we need?

In the 25 years that formalized vascular surgery training and certification has been, in effect, the treatment of patients with peripheral vascular disease has undergone dramatic changes, largely due to the emergence of a wide variety of endoluminal techniques and devices that enable minimally invasive treatment of conditions that formerly required operative intervention. Unfortunately, vascular surgeons, for the most part, were painfully slow to embrace these new and evolving technologies, which became increasingly complex as they expanded to treat virtually all vascular maladies in all peripheral vascular territories. Not surprisingly, this left vascular surgeons disadvantaged relative to other disciplines for whom these techniques were more familiar, and we have spent the better part of the last decade playing catch-up to master them and regain our role as the only specialty qualified to offer all types of therapies to our patients with vascular disease. This has caused some to question what changes need to be made in our vascular surgery training paradigm for our new trainees to attain and maintain a preeminent role in the evaluation and treatment of patients with peripheral vascular disease. While the knee-jerk response is to consider special or supplemental training programs for these advanced techniques, or even certificates of added qualifications for the more challenging of them, such as carotid stenting, we believe that all that is really needed is for the vascular surgical community as a whole, and particularly those faculty in training programs, to truly embrace these new technologies and apply them to the patients they are already rendering care to. Given the prevalence of vascular disease and overall wealth of clinical material already present in most training programs, the simple willingness to apply endoluminal therapies to our existing patient populations is all that would really be needed to insure that all future graduates of vascular surgery training programs are fully competent in all of the current endoluminal therapies and well-positioned to continue to evolve with the field. The real question to be considering, which is beyond the focus of this article, is how we are to maintain our open surgical skills in the era of minimally invasive treatment of vascular disease.

Angioplasty↗

When the bough breaks: a 10-year review of logging injuries treated at a rural trauma center in Pennsylvania.

The purpose of this study was to describe logging-related injuries at a Pennsylvania trauma center and evaluate the impact of helmets and profession. Charts of patients from 1990 through 1999 admitted after logging accidents were retrospectively reviewed. Most injuries were to the head (71 in 28 patients). Injury Severity Score was greater for helmeted loggers (21.0 vs 11.8; P = 0.02) but did not differ by profession. Mean hospital stay was not significantly different for helmeted loggers (9.6 vs 5.4 days, P = 0.499). Mean length of stay was 8.2 days and 3.5 days for professionals and nonprofessionals, respectively (P = 0.01). Professional loggers tended to remain hospitalized longer. Helmet use does not appear to affect injury severity; however, this could be a result of the catastrophic nature of many logging accidents. Most loggers in this study were not wearing helmets, which suggests that improved educational efforts are needed to improve safety in this dangerous occupation.

Accident Prevention↗

Angiosarcoma of the breast: A case report and literature review.

PURPOSE: Primary angiosarcoma of the breast is a rare occurrence. METHODS: We report a case of a 35- year-old woman who presented with a highly vascular mass that had nearly replaced her right breast. RESULTS: Initial diagnosis reported the tumor as benign. However, permanent sections were sent to the Mayo Clinic, where the diagnosis of angiosarcoma of the breast was confirmed. The mass was removed via a total mastectomy. Adjuvant chemotherapy was also prescribed. A review of the literature suggested that the benefits of adjuvant chemotherapy were not well defined, but in the case described, adjuvant chemotherapy appeared to offer the best prognosis. CONCLUSIONS: Preoperative radiography is generally not indicated for angiosarcoma. Primary angiosarcoma of the breast is difficult to diagnose, with no pathognomonic features radiographically. We concluded that solid-appearing breast tumors, which are also highly vascular, should be considered malignant until proven otherwise. Surgical removal followed by adjuvant chemotherapy appears to afford the best prognosis.

Journal Article↗

Hypercoagulable states: a review.

Vascular surgeons are often asked to evaluate patients with recurrent thromboses or thromboses in unusual locations either arterial or venous. There may be obvious inciting factors, but in many of these patients the possibility of a previously undiagnosed hypercoagulable state must be considered. Hypercoagulable states can be acquired (smoking, medication, change in physiologic status as occurs with pregnancy) or congenital. Congenital hypercoagulable disorders are more prevalent in families or patients with a history of thromboembolic events early in life or multiple miscarriages and include conditions such as protein C or S deficiencies, factor V Leiden mutation, and prothrombin gene variant. This article reviews the hypercoagulable states that are encountered in clinical practice as well as guidelines for testing and goals of therapy.

Anticoagulants↗