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Biomedical subjects

C M Chuang

Publications and source records attributed to C M Chuang.

5 recordsLinked to original sources

Were there enough physicians in an emergency department in the affected area after a major earthquake? An analysis of the Taiwan Chi-Chi earthquake in 1999.

STUDY OBJECTIVE: The purpose of this study was to evaluate physician manpower and mobilization in an urban emergency department receiving patients after a major earthquake. METHODS: Patient charts were reviewed. The workload of physicians was assessed semiquantitatively before and after a major earthquake. The physicians' mobilization in the postearthquake emergency response was assessed by using a confidential questionnaire. RESULTS: In the 3 days after the earthquake, 566 patients with earthquake-related illnesses or injuries were sent to the urban ED. Three hundred one (53.2%) patients arrived within the initial 10 hours. In the initial hours, there was no significant difference between the number of patients per physician per hour before and after the earthquake. Workloads of wound treatment and advanced life support procedures were significantly higher after the earthquake compared with before the earthquake, during the first to sixth hour and second to fifth hour, respectively. Sixty-five percent of the hospital's physicians did not assist in either the ED or in any other parts of the hospital in the initial 6 hours after the earthquake. CONCLUSION: The number of physicians in the ED was insufficient in the initial hours after the earthquake because of the sudden influx of a large number of patients. Future disaster planning must address the issue of physicians' behavior with regard to their priorities immediately after a major earthquake and include greater provision for efficient mobilization of physicians.

Disasters↗

Comparison of therapeutic efficacy of continuous ambulatory peritoneal dialysis between diabetic and non-diabetic patients: three years of experience.

To evaluate the therapeutic efficacy of continuous ambulatory peritoneal dialysis (CAPD) in diabetic uremic patients and compare it with that of non-diabetics, this study presents the results obtained from CAPD usage in a 3-year period. From December 1984 through December 1987, 12 non-insulin dependent diabetic patients (3 men and 9 women aged 65.5 +/- 3.4 years and with a treatment duration of 12.8 +/- 2.7 months, M +/- SE) and 11 non-diabetics (6 men and 5 women aged 45.0 +/- 5.3 years and with a treatment duration of 9.8 +/- 1.9 months) received CAPD treatment. In most of the patients, diabetes was complicated by significant cardiovascular diseases. None of them exchanged the CAPD bag by themselves. After CAPD treatment, subjective improvements were noted in both groups of patients but were more marked in the non-diabetic group. The BUN and creatinine levels were kept in an acceptable range except that higher creatinine levels were noted in the non-diabetic patients. Serum cholesterol levels rose mildly while triglyceride levels rose markedly in the diabetic patients. Albumin levels returned to normal in the non-diabetic group but remained low in the diabetic group. All patients except for one used the traditional subcutaneous route of insulin administration and blood sugar control was poor. The electrolyte profile was improved in both groups. The BP could be controlled but medication was still necessary. After CAPD most of the non-diabetic patients returned to their previous work while the diabetic patients remained dependent.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗

Complement activation by iodinated contrast media.

Activation of the complement system by iodinated contrast medium (ICM) infusion was studied in 25 children with congenital heart disease who received 76% Urographin during angiocardiographic studies. Total hemolytic activity (CH50), C1q, C3, C4 and C3 activator were determined before and 2, 5, 10, 15 and 20 minutes after Urographin infusion. Results showed that CH50 decreased in 16 patients (64%), C3 in 12 patients (48%), C3 activator in 12 patients (48%), C1q in 11 patients (44%) and C4 in 11 patients (44%). No side effect was encountered in all patients. It is therefore concluded that both the classic and alternative complement pathways could be activated by ICM and no causal relationship could be found between the presence of complement activation and the occurrence of adverse reactions to ICM infusion.

Adolescent↗

Giant intraluminal fibrovascular polyp of the esophagus.

Giant polyps of the esophagus are relatively rare. Without previous history, the diagnosis of the disease is difficult to be made by esophagography and esophagoscopy. A case of giant intraluminal fibrovascular polyp (13x4x3.5 cm) of the esophagus is presented. The polyp was retrieved from the esophagus by a Foley's catheter and resected via the oral route.

Adult↗