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Biomedical subjects

C J Cronin

Publications and source records attributed to C J Cronin.

11 recordsLinked to original sources

Alcohol use and negative consequences among American college students in West Germany.

Numerous investigations have recently focused on the prevalence and causes of problem drinking among American college students. The present study examined alcohol consumption and negative consequences due to drinking among 216 American college students at an American university in West Germany. American students in Germany reported a substantially higher frequency and amount of drinking, along with higher rates of negative consequences as compared to their stateside peers. The data are discussed in terms of the relationship between the American collegiate life-style of alcohol abuse and life in an alcohol-permissive society. Recommendations for changing the collegiate norm of alcohol abuse are presented.

Adult↗

Haemodynamics of carvedilol in normal subjects compared with propranolol, pindolol, and labetalol.

Single doses, in log steps, of carvedilol from 12.5 to 200 mg, propranolol 40 to 320 mg, pindolol 2.5 to 20 mg, labetalol 50 to 400 mg, and placebo control were given randomised double blind to six healthy volunteers. Noninvasive measurements of blood pressure and heart rate were made supine, standing, and during cycle exercise 1 and 2 h postdose. All drugs produced a dose-dependent reduction in exercise heart rate, but this was greater for propranolol and pindolol than for carvedilol and labetalol at the dose studied. Exercise systolic blood pressure was similarly reduced but there was less separation in the dose response curves between the various drugs. Supine and standing heart rate was reduced only by propranolol, but supine systolic blood pressure was reduced by carvedilol (50, 100, and 200 mg), propranolol (40, 160, and 320 mg), pindolol (5, 10, and 20 mg), and labetalol (400 mg). Standing systolic blood pressure was reduced by carvedilol (50, 100, and 200 mg) and pindolol (2.5 and 20 mg). The effects of carvedilol on resting blood pressure suggest additional blood pressure lowering properties other than the pure beta-antagonism of propranolol. Effects on exercise heart rate and systolic blood pressure were similar to carvedilol (12.5-200 mg) with labetalol (50-400 mg), but changes in resting systolic blood pressure were less consistent with labetalol.

Adrenergic alpha-Antagonists↗

Tuberculosis affecting a cadaveric renal allograft.

Tuberculosis is one of the more serious infections complicating renal transplantation. Although the incidence appears to be low, a dose of prednisone greater than 10 mg daily has been associated with a more severe form of disease. A case of tuberculosis with renal allograft involvement is described with documented bacteriological and radiological involvement in which treatment was successful with anti-tuberculosis chemotherapy. Deterioration in renal function did not occur. The prophylaxis of patients undergoing transplantation with a history of tuberculosis and the features, diagnosis and treatment of tuberculosis affecting a renal allograft are discussed.

Adult↗

Demands for vascular access in a renal dialysis unit: implications for a regional vascular unit.

BACKGROUND: The development of regional dialysis units and the expanding indications for dialysis has led to increased demand for vascular access surgery. Consequently, the provision and maintenance of access, and the management of related complications has created a considerable burden on vascular surgical units in hospitals providing renal replacement therapy (RRT). AIMS: The objectives of our study were to review our experience with a variety of vascular access modalities for haemodialysis and to quantify the associated surgical workload. METHODS: We reviewed our experience in a consecutive group of dialysis patients who had access surgery for RRT in a regional hospital setting. RESULTS: Between January 1995 and January 2000, 69 patients entered the long-term dialysis programme in the Mid-Western region (population = 320,000). Of the 158 procedures performed, 138 (87%) were for access creation, and 20 (13%) related to access revision procedures. Twenty patients (29%) developed a total of 30 access related complications. Vascular access procedures accounted for 10% of the vascular surgical workload (1598 procedures) in the five-year period. CONCLUSION: Vascular access is an important part of the haemodialysis services and surgical expertise should be available at local level to cope with likely demand.

Adolescent↗