Effect of physical protection on the mesothelial integrity of the pericardium.

BACKGROUND: Mesothelial integrity is essential for the prevention of pericardial adhesions. This study was performed to determine the effect of physical protection of the pericardium on mesothelial integrity. METHODS: A pericardial biopsy specimen was obtained at the time of pericardiotomy (0 minutes) in 10 patients undergoing a cardiac operation for the first time. The left free edge of the pericardiotomy was plicated inward to protect the mesothelium. Biopsy specimens were obtained from the protected and unprotected pericardium at 45 and 90 minutes after the start of extracorporeal circulation. Mesothelial integrity and the local inflammatory response were then assessed and graded histologically. RESULTS: The mesothelium was found to be present in the protected specimens at 0, 45, and 90 minutes, but it was found to be denuded in the unprotected specimens (p = 0.003 at 45 minutes; p = 0.004 at 90 minutes). Local inflammation was totally established in both the protected and unprotected specimens at 45 minutes. CONCLUSIONS: Physical agents appear to be the main factor that is damaging to the pericardial mesothelium, and this is an important concept to be taken into consideration when designing a method to prevent pericardial adhesions.

Faculty development in emergency medicine.

Faculty development is an important, multifaceted topic in academic medicine. In this article, academic emergency physicians discuss aspects of faculty development, including: 1) a department chair's method for developing individual faculty members, 2) the traditional university approach to promotion and tenure, 3) faculty development in a new department, and 4) personal development.

Clinical procedures performed by emergency medicine resident physicians: a computer-based model for documentation.

To facilitate documentation and assess the number and types of clinical procedures actually performed by resident physicians, we developed a microcomputer-based recording process. After completing a procedure, including resuscitations, residents recorded in a precoded book issued for each monthly rotation. At the end of each rotation, the books were collected and the information was transferred to a database program by the clerical staff. During 1989, 17 emergency medicine resident physicians at PGY levels 1 through 3 utilized this system. Completed procedure record books were submitted for 124 of 148 clinically active months for a compliance rate of 84%. Of 1,857 procedures recorded, the most frequent were resuscitation (20%), orotrachael intubation (12%), and percutaneous central vein cannulation (12%). Commonly recorded were lumbar puncture (7%), diagnostic peritoneal lavage (5%), nasotrachael intubation (4%), and newborn delivery (4%). The high compliance rate suggests resident physicians acceptance. This system enables residency directors to closely monitor individual and group procedure experiences and to make curriculum changes based on objective findings. It also provides a means of storing and retrieving data for review organizations and credentials committees.

Determination of prehospital blood glucose: a prospective, controlled study.

STUDY OBJECTIVE: To determine if emergency medical personnel can effectively rule out hypoglycemia in the prehospital setting. DESIGN: During a 10-week period, emergency medical personnel determined the fingerstick glucose on all prehospital patients with altered mental status using the Chemstrip bG. Statistical comparisons were made to serum glucose levels performed by hospital laboratory personnel on blood samples obtained prior to glucose administration. A serum glucose level less than 60 mg/dL was considered a positive test for hypoglycemia. PARTICIPANTS: 170 consecutive patients with altered mental status (AMS) ranging in age from 13 to 90 years were enrolled. MEASUREMENTS AND MAIN RESULTS: Of these patients, 158 were normal or hyperglycemic, 12 were hypoglycemic, and one patient was hypoglycemic but had only a borderline negative fingerstick test. Thus, a sensitivity of 91.7% and a negative predictive value of 99.3% were obtained. The specificity was 92.4%, and positive predictive value was 47.8%. CONCLUSION: The Chemstrip bG may be used safely in the prehospital setting to rule out hypoglycemia.

Sexually related trauma: a review.

Every type of sexual trauma is overlaid with the sexual mores and taboos of society and the individual psychosexual values of the patient. Informed and appropriate treatment should give good results for the patient physically as well as psychologically. Fortunately for the human species, wounds from Cupid's bow are much more common than any injury discussed by us. For those unfortunates who sustain such injuries in the pursuit of happiness, however, these guidelines for diagnosis and treatment are submitted for your review and their benefit.

Incidence of cervical spine injuries in association with blunt head trauma.

To establish an incidence of cervical spine injuries in significant blunt head trauma and to evaluate the necessity of using cervical radiography, all consecutive cases of blunt head trauma admitted to the trauma service over a 7-month period were reviewed. Two hundred twenty-eight charts were reviewed for demographic information, circumstance of injury, complaints and physical findings referable to the cervical spine, presenting level of consciousness, severity of head injury, and cervical spine radiographic findings. Only three patients were found to have cervical spine injuries, for an incidence of 1.7%. Of the 122 alert and asymptomatic patients, none had cervical spine injury. The patient population was defined, yet the very low incidence of cervical spine injuries associated with blunt head trauma in this study precludes any identification of predictors. Nevertheless, the results suggest that alert and asymptomatic patients can be spared cervical spine radiography.

An ethics curriculum for teaching emergency medicine residents.

Instruction in medical ethics has become standard in undergraduate medical education within the past decade; more recently, several specialty boards have formally endorsed ethics teaching and evaluation for residents as well. However, the current emergency medicine Core Content, representing emergency medicine's central body of knowledge, makes no specific mention of ethics. An ethics curriculum is proposed to remedy this gap in the emergency medicine residency curriculum. Issues frequently encountered in the emergency department are emphasized, and topics include moral foundations of clinical medicine, the unique ethical concerns of emergency medicine, patient competence, informed consent and refusal of treatment, truthfulness, confidentiality, foregoing life-sustaining treatment, duty to provide care, moral issues in disaster medicine, allocation of health care, and research and teaching involving human subjects. Educational objectives and readings for each of these topics are presented along with sample case scenarios to be used in a small group discussion format.

Intravenous versus rectal prochlorperazine in the treatment of benign vascular or tension headache: a randomized, prospective, double-blind trial.

STUDY OBJECTIVE: To compare the effectiveness of i.v. and PR prochlorperazine for treatment of acute benign vascular or tension headache. DESIGN: Prospective, randomized, double-blind trial. SETTING: University emergency department with 50,000 annual census. PARTICIPANTS: Forty-five adult patients enrolled on 46 visits. INTERVENTIONS: Patients received 10 mg prochlorperazine i.v. and placebo suppository or 25 mg prochlorperazine PR and placebo injection. Pain assessment was made using a 10-cm visual-analog scale; scores were analyzed using Wilcoxon/Kruskal-Wallis rank-sum tests (alpha of .01). RESULTS: Mean 60-minute pain scores for i.v. and PR groups were 0.6 and 3.5, respectively (P = .0002). Two patients (8.7%) in the i.v. group and six patients (26.1%) in the PR group required rescue analgesia (P = .12). CONCLUSION: i.v. prochlorperazine appears to provide more effective relief than PR prochlorperazine for benign vascular or tension headaches.

Rapid diagnosis of group A strep pharyngitis in the emergency department.

Two ten-minute rapid tests for diagnosing Group A streptococcal pharyngitis in 147 emergency department patients with a complaint of sore throat were evaluated using positive throat cultures as the marker for disease. Treatment was initiated solely on the basis of clinical judgment. Sensitivity and specificity were 78% and 93%, respectively, for the rapid test and 69% and 56%, respectively, for clinical judgment. The rapid test was significantly better than clinical judgment alone in determining the presence of disease (P less than .05). The predictive values of the positive and negative and were 78% and 93%, respectively, for the rapid test and 38% and 85%, respectively, for clinical judgment. In the ED setting in which adequate followup is difficult, the rapid test can identify more accurately than can clinical judgment alone those patients who need therapy.