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Biomedical subjects

J B Epstein

Publications and source records attributed to J B Epstein.

At least 73 records · Page 4Linked to original sources

Management of oral Kaposi's sarcoma and a proposal for clinical staging.

Kaposi's sarcoma (KS) is the most common neoplastic disease in patients with disease due to human immunodeficiency virus (HIV), and oral KS (OKS) is the commonest oral neoplasia. OKS has been managed by local excision, intralesional chemotherapy regional radiotherapy, and systemic chemotherapy. Comparison between studies is difficult as the severity of oral involvement is not well defined in most studies. This paper reviews the approach to the management of OKS and also presents a proposal for the clinical staging of OKS. Clinical staging of OKS will facilitate comparisons of outcomes of treatment of OKS and improve our understanding of the natural history of the neoplasia, which has varied presentation and rates of progression.

Acquired Immunodeficiency Syndrome↗

An atlas of HIV-associated oral lesions: a new classification and diagnostic criteria.

Many oral lesions are strongly associated with HIV infection. Along with the HIV-infected individual's T helper cell count (CD4 + cell count), they indicate the severity of immune suppression. It is important for dental professionals to recognize these lesions early, as it alerts patients to their HIV status, and allows them to receive appropriate and prompt treatment for their HIV infection and related oral conditions. An atlas of the oral lesions commonly associated with HIV infection is presented. To update dental providers and assist them in the recognition and diagnosis of these conditions, the recent criteria for diagnosis suggested by the European Economic Community (EEC) Clearinghouse on Oral Problems Related to HIV Infection and the World Health Organization (WHO) Collaborating Centre on Oral Manifestations of the Immunodeficiency virus are also presented.

AIDS-Related Opportunistic Infections↗

Latex allergies.

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Anesthetics, Local↗

A comparison of TMD patients with or without prior motor vehicle accident involvement: initial signs, symptoms, and diagnostic characteristics.

The role of trauma in the etiology of temporomandibular disorders (TMD) is controversial. The objectives of this study were to compare presenting signs, symptoms, and diagnoses in patients who had motor vehicle accident trauma-related TMD to patients who had nontrauma-related TMD. Files of 50 trauma and 50 matched nontrauma TMD patients were reviewed. Information concerning presenting pain, temporomandibular joint (TMJ) and related symptoms, examination findings, and diagnoses was recorded. Posttraumatic TMD patients reported higher facial (P = .006) and headache (P = .0001) pain ratings, neck symptom frequency (P < .01), ear-related symptoms (P = .02), sleep disturbance (P < .001), and occupational and avocational disability frequencies (P < .0001). They had greater masticatory muscle (P < .001), neck muscle (P < .001), and TMJ tenderness (P = .01) scores and myofascial pain (P = .006) and arthralgia/capsulitis (P = .008) diagnoses. The nontrauma group had more subjective (P = .02) and objective (P = .05) TMJ crepitus and higher self-reports of parafunctional jaw habits (P = .05). Trauma may be an important etiologic factor for some TMD patients.

Accidents, Traffic↗

A comparison of TMD patients with or without prior motor vehicle accident involvement: treatment and outcomes.

The influence of previous trauma in the management of patients with temporomandibular disorders (TMD) is controversial. The objectives of this study were to compare treatment regimens and outcomes in motor vehicle accident trauma-related versus nontrauma-related TMD patients. Files of 50 trauma and 50 matched nontrauma TMD patients were reviewed. Information concerning treatment received, progress of symptoms with treatment, and findings from the final examination were recorded. As a whole group, posttraumatic TMD patients tended to receive more types of treatment (P < .0001), have more medications prescribed (including analgesics, P < .001; nonsteroidal anti-inflammatory drugs, P = .001; muscle relaxants, P = .001; and tricyclic antidepressants, P < .001), have more oral medicine clinic visits (P = .07) over a longer period of time (P = .06), and have a poorer treatment outcome (P < .001) as compared to the nontrauma group. When the patients were separated into TMD diagnostic classification subsets, only some of these differences between trauma and nontrauma patients were seen, but the subset group sizes were small and only a few of the groups could be compared. There did not seem to be a significant effect from settling insurance claims prior to the last clinic visit. Trauma may be an important prognostic factor in the management of some TMD patients.

Accidents, Traffic↗

Topical clonidine for orofacial pain: a pilot study.

An open-label trial of clonidine, an alpha 2-adrenergic agonist, was prescribed for patients with a clinical diagnosis of oral neuropathic pain or neuralgia involving the oral cavity. Clonidine (0.2 mg/g) was prepared in a cream base and applied four times daily to the site of pain. Seventeen patients were assessed: 10 were diagnosed with neuropathic pain, and 7 with neuralgia. Two of the 17 patients had complaints overlapping both neuropathic and neuralgic pain. In the patients with neuropathic pain, an overall mean reduction in severity of burning of 36% (on a 10-point visual analogue scale) was reported. Half of these patients reported clinical improvement; however, no patients reported complete resolution of symptoms. Of the patients with characteristics of neuralgia, 57% improved; and in those who reported improvement, a mean reduction of approximately 54% was reported. In the 4 patients with neuralgia who responded, a 94% reduction in pain was reported, with complete resolution of pain in 2 patients. This open-label clinical trial suggests that topical clonidine may be effective in the management of some patients with oral neuralgia-like pain, but may have a more limited effect in those patients with oral neuropathic pain. Besides type of pain, no other variables predicted which of the patients would achieve pain reduction with topical clonidine. Although confirmation of clinical efficacy requires double-blind clinical studies, this initial trial suggests that further study is warranted.

Administration, Topical↗

A comparison of computed tomography and panoramic radiography in assessing malignancy of the maxillary antrum.

Panoramic and computed tomographic images of 20 patients with antral malignancy were viewed separately and compared to determine the extent of bony destruction of the sinus walls seen in each film type. This study showed that panoramic radiographs can demonstrate antral malignancy at the time of diagnosis in 90% of cases. Panoramic radiographs possess the potential for identifying the need for further diagnostic procedures in evaluating the maxillary antrum. Health care workers should be aware of the value of panoramic radiographs in examining this region.

Aged↗

Sweet's syndrome in a patient with oral cancer associated with radiotherapy.

Approximately 10-20% of the reported patients with acute febrile neutrophilic dermatosis (Sweet's syndrome) have an associated neoplasm. Oral findings of Sweet's syndrome are rarely reported, and no cases in patients with oral cancer have been reported to date. This report describes the clinico- and histopathological findings of Sweet's syndrome in a patient with oral cancer, treated with radiotherapy. After 10 fractions of external beam radiotherapy, treatment was interrupted because of severe oral mucositis which extended beyond the radiation fields. Two days later the patient developed multiple tender skin lesions and the diagnosis Sweet's syndrome was made. Skin and oral lesions resolved without additional treatment and did not recur upon resuming radiotherapy. As suggested in previous case reports, tumour antigens might play a role in the development of Sweet's syndrome. In this case, irradiation therapy may also have been a trigger for this syndrome.

Carcinoma, Squamous Cell↗

Acyclovir prophylaxis of oral herpes virus during bone marrow transplantation.

Oropharyngeal shedding of herpes viruses (herpes simplex, cytomegalovirus) was assessed in patients on standard acyclovir prophylaxis during bone marrow transplantation (BMT) to determine the frequency of viral shedding and to assess possible oropharyngeal complications that may be associated with viral reactivation in these patients. We conducted a prospective assessment of 83 patients receiving BMT. Patients were evaluated weekly and oral surveillance cultures were completed. Shedding of herpes simplex virus (HSV) was detected in the oropharynx of 2.9% of seropositive patients on prophylactic acyclovir, and only one case of clinical oral herpetic infection was seen. Cytomegalovirus (CMV) was cultured from the oropharynx in 13.3% of CMV seropositive patients provided with prophylactic acyclovir, but no oropharyngeal lesions were attributed to CMV reactivation. No correlation was seen between HSV and CMV pretransplant serology and severity of oral mucositis and acute graft versus host disease. No effect on time to engraftment was detected. This study supports the continuing use of acyclovir prophylaxis in HSV seropositive patients receiving BMT. Acyclovir prophylaxis was effective in preventing viral shedding in all but 2.9% of patients, and only one case of clinical infection was diagnosed. The frequency of CMV shedding was approximately four times that of HSV; however, no oral lesions were attributed to CMV.

Acyclovir↗

Oral health care for the cancer patient.

Orofacial complications are common after radiotherapy to the head and neck, and after chemotherapy for malignant disease. Mucositis is the most frequent and often most distressing complication, but adverse reactions can affect all other orofacial tissues. This paper discusses the aetiopathogenesis and current means available for preventing, ameliorating and treating these complications, as well as indicating research directions.

Antineoplastic Agents↗

Topical cyclosporine in a bioadhesive for treatment of oral lichenoid mucosal reactions: an open label clinical trial.

Oral lichenoid reactions may present as chronic symptomatic mucosal reactions. Lichen planus-like reactions include those associated with drug reactions, graft-versus-host disease after bone marrow transplantation, and idiopathic lichen planus. The mainstay of management is topical steroids; in resistant cases, topical and systemic corticosteroids may be used. We evaluated the use of cyclosporine administered in an adhesive hydroxypropyl cellulose base in patients with oral lichenoid reactions that remained active despite the prior use of high-potency topical steroids and in some cases despite the combined use of topical and systemic immunosuppression. Signs and symptoms of ulcerative oral graft-versus-host-disease improved more than 50% in three of four patients with oral graft-versus-host disease treated with the addition of topical cyclosporine. However, in patients with persistent oral lichen planus less effect was seen with 7 of 14 patients demonstrating a partial reduction in signs and symptoms. The topical use of cyclosporine in a bioadhesive base may represent a useful adjunctive approach in management of oral lichenoid reactions, although dose escalation and placebo-controlled studies are needed.

Administration, Topical↗

Prophylaxis of candidiasis in patients with leukemia and bone marrow transplants.

OBJECTIVES: The increased risk for systemic fungal infection and the potential fatal consequences of disseminated candidiasis in bone marrow transplant patients has prompted study of prophylaxis and early treatment of candida colonization and infection. STUDY DESIGN: Patients with leukemia who received fluconazole prophylaxis were compared with a concurrent group of patients not given prophylaxis for fungal organisms. RESULTS: A trend to reduction of oropharyngeal colonization by Candida albicans was seen (p = 0.07) although no significant differences in systemic candidiasis were seen. In patients with documented systemic candidiasis, oral colonization was present and systemic infection was identified after the development of ulcerative oral mucositis. CONCLUSIONS: Our results support the potential of fluconazole to reduce oropharyngeal colonization by Candida albicans, however, we did not show prophylaxis of oral candidiasis or systemic candidiasis. These findings and reports of fluconazole-resistant candidal species and a rising number of cases of infection as a result of Candida krusei indicate the need for further studies of prophylaxis of candidal infection in patients who are anticipated to develop profound neutropenia.

Adolescent↗

Effects of compliance with fluoride gel application on caries and caries risk in patients after radiation therapy for head and neck cancer.

The use of fluoride gel applied in a custom tray once daily has become standard for patients who have xerostomia after undergoing radiation therapy. Compliance may be poor as a result of the inconvenient method of application and because many patients with head and neck cancer have poor health behaviors. Our aim was to investigate the effect of compliance with fluoride gel application on caries and caries risk. Patients were prescribed neutral sodium fluoride gel (5000 ppm) before undergoing radiotherapy Fifty-two patients were willing to visit the dental clinic for dental examination, measurement of saliva, and quantitative culture of Streptococcus mutans and lactobacillus species. Before radiotherapy was performed, decayed, missing, and filled surfaces data were recorded for all patients in the study. Of these patients, 27 used fluoride gel once daily, as directed. Radiation dose, number of fractions, and duration of radiation had a significant inverse effect on postradiotherapy whole resting saliva (p = 0.04, p = 0.01, and p = 0.01) and on whole stimulated saliva (p = 0.02, p < 0.01, and p < 0.01). Patients with a subjective feeling of dry mouth had significantly less saliva production at rest (p = 0.01) and on stimulation (p = 0.01). A trend toward reduction of S. mutans counts was seen in those patients who used their fluoride gel regularly (p = 0.057). High lactobacilli counts were found in the patients with high and low compliance with fluoride gel use. Differences in the mean caries incidence between those who reported compliance with daily fluoride application and those who did not comply were not found significant because of the large SD in the patient groups, although differences in the mean for these groups were seen. The lack of a statistically significant difference may be due to the multiple factors associated with caries. Therefore patient care must be individualized, and patients must be assessed at regular intervals to determine the caries risk and caries activity to provide guidance for maintenance of the dentition.

Adult↗

Motor vehicle accidents and TMDS: assessing the relationship.

Patients involved in a motor vehicle accident, or MVA, may experience signs and symptoms suggesting temporomandibular joint or masticatory muscle injury. Because there are no published clinical studies assessing the potential relationship among reported variables suggesting injury, examination findings, and crash impact and postural variables, the authors gathered data from 219 patients identifying TMD after an MVA. The results suggest that TMJ or masticatory muscle injury may be associated with varying postural characteristics and impact events, including speed, direction of impact and vehicular damage.

Acceleration↗

Continuing investigation and controversy regarding risk of transmission of infection via dental handpieces.

Current epidemiologic evidence indicates that infectious diseases, specifically blood-borne pathogens such as hepatitis B, hepatitis C and HIV, are not transmitted from patient to patient via dental instruments. However, ongoing laboratory investigations suggest that potential pathogens may be retained within dental handpieces, creating a theoretical risk of cross infection. Controversy regarding certain laboratory study results and the clinical implications of these studies continues. Guidelines and regulations for infection control should be rational, and based on a realistic response to a documented risk. Dental professionals should be aware of continuing research focusing on these issues.

Blood-Borne Pathogens↗

Infection control.

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HIV Infections↗