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Biomedical subjects

R Davies

Publications and source records attributed to R Davies.

At least 343 records · Page 19Linked to original sources

Psychological care, counselling and diabetes. Part 2: Medical perspective.

Future advances in the management of people with diabetes are becoming increasingly unlikely to take the form of new insulin preparations, delivery devices or drugs. The responsibility for diabetes management is increasingly being given back to patients themselves. Improvements in the management of diabetes may be more likely to come from an appreciation of how psychological well-being can have a major effect on an individual's ability to manage their diabetes. In this article I have described some examples where an awareness of these problems may allow for planning of their appropriate management. The ideal plan of action would be for the 'Diabetic Team' to meet with a psychologist in order to identify the needs of their clinic population. Plans can then be made for meeting those needs. Individuals can be identified for training in the appropriate skills. Counselling courses are widely available and some with diabetes particularly in mind already exist. Resources and time can then be set aside specifically for implementation of this care. Individual local resources and enthusiasm would decide what form this should take and whom, if anyone, from the 'Diabetes Team' should undergo training. There is already an awareness that Diabetes Nurse Specialists may require counselling skills and the opportunity to use these skills, and some 'Diabetes Teams' currently have a psychologist as a member. Overall, the most important change may be the recognition that specialist psychological advice and, hopefully, collaboration is required to provide a satisfactory standard of health care.

Counseling↗

Reversal of primary root caries using dentifrices containing 5,000 and 1,100 ppm fluoride.

This study compared the ability of two sodium fluoride dentifrices, one containing 5,000 ppm fluoride (Prevident 5000 Plus) and the other 1,100 ppm fluoride (Winterfresh Gel), to reverse primary root caries lesions (PRCLs). A total of 201 subjects with at least one PRCL each entered the study and were randomly allocated to use one of the dentifrices. After 6 months, 186 subjects were included in statistical analyses. At baseline and after 3 and 6 months, the lesions were clinically assessed and their electrical resistance measured using an electrical caries monitor. After 3 months, 39 (38.2%) of the 102 subjects in the 5,000 ppm F- group and 9 (10.7%) of 84 subjects using the 1,100 ppm F- dentifrice, had one or more PRCLs which had hardened (p = 0.005). Between baseline and 3 months, the log10 mean +/- SD resistance values of lesions for subjects in the 1,100 ppm F- group had decreased by 0.06+/-0.55, whereas those in the 5,000 ppm F- group had increased by 0.40+/-0.64 (p<0.001). After 6 months, 58 (56.9%) of the subjects in the 5,000 ppm F- group and 24 (28.6%) in the 1,100 ppm F- group had one or more PRCLs that had become hard (p = 0.002). Between baseline and 6 months, the log10 mean +/- SD resistance values of lesions for subjects in the 1,100 ppm F- group decreased by 0.004+/-0.70, whereas in the 5,000 ppm F- group, they increased by 0.56+/-0.76 (p<0.001). After 3 and 6 months, the distance from the apical border of the root caries lesions to the gingival margin increased significantly in the 5,000 ppm F- group when compared with the 1,100 ppm F- group. The plaque index in the 5,000 ppm F- group was also significantly reduced when compared with the 1,100 ppm F- group. The colour of the lesions remained unchanged. It was concluded that the dentifrice containing 5,000 ppm F- was significantly better at remineralising PRCLs than the one containing 1,100 ppm F-.

Adult↗

Achievements in child health over the first half of the 20th century.

This article will reflect upon the gains made in the health and welfare of children in the UK over the first half of this century. It will discuss how government reforms covering health, welfare and education have improved all aspects of children's lives and the contribution made by the relatively new professions of nursing, midwifery and health visiting. Finally, it will show how changing attitudes towards children and the two World Wars culminated in international recognition of children's rights. A future article will highlight the increasing rate of change seen in the second half of this century.

Child↗

A celebration of 100 years' achievement in child health.

This, the second of a two-part article, will reflect upon the gains made in the health and welfare of children within the UK over the last 50 years of the 20th century. It will show how government reforms covering health, welfare, and education have continued to improve all aspects of children's lives. It will also show how nursing, midwifery, and health visiting have tried to continue to meet the changing needs of children and their families. Lastly, it will highlight the increasing rate of change during this time and predict what may await children and young people in the first part of the new millennium.

Child↗

Perioperative corticosteroid supplementation and dento-alveolar surgery.

Patients are referred to hospital for dento-alveolar surgical procedures requiring supplemental corticosteroid administration. However, it has been reported that medically compromised patients who require routine dental treatment are being referred unnecessarily. This article reports a retrospective study undertaken at a Regional Maxillofacial Unit over a 24-month period, which reveals the referral pattern and management of patients specifically referred for outpatient dental treatment with corticosteroid supplementation. The paper highlights the dilemma confronting practitioners when reviewing the literature on corticosteroid supplementation and the confusion that still exists in both the primary and secondary care settings as to which patients should be prescribed supplemental corticosteroids. A simplified guide is proposed for the clinical management of these patients.

Adrenal Insufficiency↗

Symptoms and EEG findings in the borderline syndrome.

Symptomatology and electroencephalographic abnormalities were examined in thirty-nine individuals with borderline personality disorder, compared with twenty unipolar depressed patients. Borderline individuals showed a much higher incidence of symptoms commonly seen in complex partial seizures or episodic dyscontrol, and in addition had a much higher incidence of EEG abnormalities, particularly posterior sharp activity. These findings suggest that neurophysiological dysfunction may contribute to the borderline syndrome.

Adolescent↗

Points of view.

Explore the source record for details and available documents.

Ethics, Nursing↗

Postcards from the edge.

Explore the source record for details and available documents.

Correspondence as Topic↗

In vitro biological effects of glass fibers.

Two glass fiber samples, which had previously been tested for their ability to induce mesotheliomata in rats, were subjected to size fractionation and the respirable fibers from each were collected. The sizes of the fibers in the total and respirable fractions were measured and all four materials were tested in vitro for their cytotoxic activities against V79-4 cells, A549 cells, and mouse peritoneal macrophages. The respirable fraction from the coarser material had considerably enhanced activity (on a mass basis) compared with its parent (total) material. The respirable fraction of the other fiber was only slightly more active than the corresponding total sample. The fiber size distributions are discussed in relation to the observed biological activity of all four samples, and it is concluded that the cytotoxic activity of fibrous glass is determined by the number of fibers within certain size ranges. It is likely that in the systems used in this present paper, fibers less than 10 micrometer long are inactive. The relationship between these observations and those obtained with fibrous glass in vivo by Stanton et al. (1977) are discussed.

Animals↗

Fluid space in bone.

This paper reviews the extraction of solutes through capillaries in bone, by means of outflow dilution techniques in the canine tibia. Solutes leave capillaries in bone by passive diffusion dependent on molecular size. The fluid space in bone is also examined by means of analyzing washout curves of radioactive substances. It is proposed that there are 4 definable compartments in bone; a vascular space, a perivascular fluid space a bone fluid space and a bone space. The relevance of these spaces is in bone mineral short and long term ion exchange activity.

Animals↗

When the patient becomes the plaintiff.

Fortunately for most hospital doctors, being sued is still a relatively unique experience; as a result most find the process bewildering. This article attempts to explain some of the terms and procedures used when a patient seeks recourse to lawyers and possibly to the courts.

Expert Testimony↗

Chemosis following blepharoplasty: an unusual complication.

We observed four cases of chemosis associated with otherwise uneventful four-lid blepharoplasty. These patients experienced postoperative conjunctival chemosis (without associated globe injection), varied types of congestion, subconjunctival hemorrhage, retrobulbar hematoma, or corneal involvement. Postoperatively, the patients were treated with some combination of patching, topical and/or systemic steroids, decongestant eye drops, and observation. Regardless of the treatment, the chemosis resolved by 5 months, without permanent complication. Probable causes were blockage of orbital or eyelid lymphatics and excessive cautery during surgery.

Adult↗

Oral rehabilitation and quality of life following the treatment of oral cancer.

This is the first of two articles concerning the surgical and prosthodontic rehabilitation of patients who have undergone surgery for cancer of the mouth. This article discusses the morbidity associated with treatment and its effect on quality of life. The second article will consider aspects of the prosthodontic rehabilitation particularly with regard to obturator construction following maxillectomy.

Body Image↗

Diagnosis and management of heart failure. Canadian Cardiovascular Society.

Many of the recommendations presented in this consensus report are summarized in Figure 2. All patients with known or suspected heart failure should undergo a detailed history and physical examination. Other causes for the symptoms and/or clinical signs indicative of heart failure should be excluded. Routine biochemical tests, as well as a standard chest x-ray and ECG, should be performed on all patients with heart failure. Precipitating or aggravating causes of heart failure should be eliminated. Patients with potentially surgically correctable lesions, such as constrictive pericarditis, valvular disease or left ventricular aneurysm, should be referred for cardiological evaluation and the appropriate surgery. Patients with ischemic induced heart failure should be assessed for possible revascularization by either angioplasty or bypass surgery. Pending clinical findings and the degree of systolic or diastolic dysfunction present, determined by noninvasive tests, the panel made recommendations concerning the choice of various therapeutic agents. These clinical guidelines have been developed for practising physicians who manage patients with heart failure. The process by which consensus recommendations were developed by the Canadian Cardiovascular Society was based on the principle that guidelines have the best chance of succeeding if they are developed by those who will be using them. Strategies that ensure physicians are aware of the current guidelines, and that their implementation leads to measurable improvement in the diagnosis and management of patients with heart failure must be developed. Consensus reports represent an ongoing process which is subject to revision when further conclusive evidence is obtained by ongoing and future clinical trials.

Cardiac Output, Low↗