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Christopher C Lee

Publications and source records attributed to Christopher C Lee.

12 recordsLinked to original sources
PubMed2006

Routine versus selective abdominal computed tomography scan in the evaluation of right lower quadrant pain: a randomized controlled trial.

OBJECTIVES: To determine the role of abdominal computed tomography (CT) imaging in patients with right lower quadrant (RLQ) pain. The authors hypothesized that selective use of abdominal CT would reduce imaging without increasing the rates of negative appendectomy and perforated appendicitis. METHODS: A prospective randomized clinical trial was conducted in a community teaching emergency department. Adult patients with acute RLQ abdominal pain with suspected acute appendicitis were included. Patients were randomized to mandatory (all patients) or selective (based on clinical evaluation) abdominal CT imaging. The primary outcome was the negative appendectomy rate. RESULTS: A total of 152 patients were randomized to selective (n = 80) and mandatory (n = 72) intervention groups. The mean (+/-SD) age was 34.1 (+/-3.5) years, and 48% were female. CT imaging was performed in 54 of 80 patients (68%; 95% confidence interval [CI] = 56% to 78%) in the selective group and in 70 of 72 patients (97%; 95% CI = 90% to 100%) in the mandatory group. There was a trend to a decreased rate of negative appendectomy in the mandatory group (1/39 [2.6%]; 95% CI = 0.5% to 13.2%) as compared with the selective group (6/43 [13.9%]; 95% CI = 6.6% to 27.3%), with a difference in prevalence rates of 11.3% (95% CI = -3.5% to 26.3%). There was also a trend to a decreased perforated appendix rate in the mandatory group (4/39 [10.3%]) as compared with the selective group (7/38 [18.4%]), with a difference in prevalence rates of 8.2% (95% CI = -8.0% to 24.4%). CONCLUSIONS: In this small sample of adult patients with RLQ abdominal pain and suspected acute appendicitis, CT imaging was performed less frequently in the selective group and there was a trend with mandatory CT imaging to reduced rates of negative appendectomy and perforated appendices.

Abdominal Pain↗
PubMed2006

Time for change: the state of emergency medical services in South Korea.

Trauma is the leading cause of death among people younger than 40 years of age in South Korea. This demographic represents the productive members of Korean society, yet little is being done to correct this growing problem. The preventable death rate in Korea is estimated to be approximately 60%, which is unacceptable given Korea's growing economy and available resources.

Cause of Death↗
PubMed2003

A current concept of eclampsia.

Eclampsia is defined by the occurrence of seizures resulting from hypertensive encephalopathy on the background of preeclampsia. The development of hypertension during pregnancy, a serious and potentially fatal condition, is a leading cause of maternal and fetal morbidity and death in the United States.(1-3) It is a disease with preventable complications. The pathophysiology of hypertension during pregnancy is unclear, but there is consensus that aggressive treatment is warranted to prevent complications to both fetus and mother. A current concept of pathophysiological character, diagnosis, prevention, and management of eclampsia is discussed.

Abruptio Placentae↗
PubMed2003

Avascular necrosis of common bones seen in the ED.

Missed diagnosis of avascular necrosis (AVN) may result in substantial morbidity. Early diagnosis is crucial for appropriate intervention and, ultimately, improved outcome. Emerging physicians need to recognize AVN to avoid unsatisfactory clinical results for their patients. Avascular necrosis (AVN) of the bone can occur when the blood supply to the bone is disrupted and is usually found in areas with terminal circulation. Commonly involved bones include the femoral head, talus, and scaphoid.

Child↗
PubMed2003

Meeting the challenge of bioterrorism: lessons learned from West Nile virus and anthrax.

Hospital emergency departments (EDs) and ambulatory clinics may be the first to recognize illness related to a bioterrorist event. Every health-care institution must develop a weapons-of-mass- destruction (WMD) preparedness plan as part of its all-hazards disaster planning. As part of an all-hazards disaster plan, WMD preparedness should use the incident-command model to insure the required chain of command for effectively coordinating activities between hospital departments and external agencies. Preparedness for bioterrorism poses unique challenges. In the event of a biological attack, the hospital infection control staff and administration must already have in place the means to communicate with local and state public health agencies, the Centers for Disease Control and Prevention (CDC), local law-enforcement agencies, and the Federal Bureau of Investigation (FBI). Local and regional planners must consider how to coordinate the responses of emergency medical services (EMS), police, and fire departments with healthcare providers and the news media. Most hospitals are ill equipped to deal with a catastrophic event caused by WMD. The burden of responding to such events will fall initially on ED physicians and staff members. The severity of such an incident might be mitigated with careful planning, training and education. The responses of one hospital network to the outbreak of West Nile virus and, more recently, to the threat of anthrax, are presented as guides for bioterrorism preparedness.

Anthrax↗
PubMed2003

An evaluation of human demineralized bone matrices in a rat femoral defect model.

The osteoconductive and osteoinductive potential of two human allogeneic demineralized bone matrix putties were compared in a critical-sized athymic rat femoral defect model. Defects were treated with (1) a demineralized bone matrix in a hyaluronic acid carrier, (2) a demineralized bone matrix in a glycerol carrier, (3) a hyaluronic acid carrier alone, or (4) with no implant. Radiographic examinations and histologic analyses were done at 4, 8, and 16 weeks postoperatively. Eight of the 48 defects treated with a demineralized bone matrix and none of the 36 surgical controls showed complete radiographic healing by 16 weeks and no statistically significant difference between the radiographic scores for the two demineralized bone matrix preparations was found. On histologic review, both preparations of demineralized bone matrix had passive remineralization. The largest foci of endochondral ossification were seen in limbs treated with a demineralized bone matrix in a hyaluronic acid carrier. The 8-mm rat femoral defect allows for stringent assessment of the osteoinductive potential of bone graft substitutes. Hyaluronic acid and glycerol are viable carriers for demineralized bone matrices. As both de-mineralized bone matrices tested provided an adequate osteoconductive matrix and showed some, although limited, osteoinductive capacity, these materials should be used in clinical practice only as bone graft extenders or enhancers.

Aged↗