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J Camp

Publications and source records attributed to J Camp.

At least 37 records · Page 2Linked to original sources
PubMed1991

Trial of a negative ion generator device in remediating problems related to indoor air quality.

It has been suggested that supplementation of indoor air with negative ions can improve air quality. This study examined the effects of a "negative ion-generator" device on air contaminants and symptom reporting in two office buildings. Separate sets of functional and nonfunctional negative ion generators were monitored using a double blind, crossover design involving two 5-week exposure periods. There were no detectable direct or residual effects of negative ion generator use on air ion levels, airborn particulates, carbon dioxide levels, or symptom reporting. Symptom reporting declined at both sites initially and appeared to be consistent with placebo effect. Job dissatisfaction was an apparent contributor to symptom reporting, with a magnitude comparable to presumed effects of air quality. Further testing of such devices is needed before they should be considered for office air quality problems.

Adult↗
PubMed1991

[Hemoptysis: a prospective study of 108 cases in an emergency service].

A prospective study is performed in 108 patients presenting hemoptysis who were attended in the emergency department. Final diagnosis was achieved in 89 cases (82.4%), being lung infections of tuberculous origin or not, neoplasias, and chronic obstructive lung emphysema the main observed etiologies. A low percentage of severe hemoptysis is found (5.6%). Diagnosis was obtained in 79.6% of patients by clinical history, physical exam, chest x-ray and ORL exam. Only 13.6% of patients who were not diagnosed in the Emergency department were later diagnosed by follow up and performance of complementary tests. Similarly, the lack of an initial etiological diagnosis had no repercussion, by itself, in a worse prognosis. Therefore, it is recommended to perform a single strict evolution control in patients with hemoptysis of unknown origin who present risk factors of lung neoplasia (male sex, age greater than 40 years, smoking greater than 45 packs/year).

Age Factors↗
PubMed1989

Experimental models to promote healing of tears in the avascular segment of canine knee menisci.

Longitudinal tears were created in canine lateral menisci and techniques were applied to induce healing by removal of a core of tissue from the periphery of the meniscus to the tear or by implantation of a vascularized synovial flap into the tear. The meniscal tears did not heal in knees that were not immobilized, and they healed poorly and sporadically in knees that were immobilized in a cast but bore some weight. However, a higher percentage of tears that were treated by the core-removal or synovial-flap technique healed when the knee was firmly immobilized and weight-bearing was prevented by the use of an external skeletal fixator across the joint for eight to twelve weeks. Neovascularization and access to a source of reparative cells appear to be important in the healing process.

Animals↗
PubMed1979

[Acute abdomen due to hemoperitoneum as the first manifestation of a liver tumor. Report of four cases (author's transl)].

Four cases of spontaneous acute hemoperitoneum due to rupture of a liver tumor are presented. The resulting acute abdomen was the first manifestation of the neoplasia. The four tumors corresponded histopathologically to a cavernous hemangioma, a bening adenoma related to anabolizing androgens, and two hepatocarcinomas in cirrhotic livers. All of the patients presented abdominal pain and shock, the characteristics of which are described in this report. One of the patients died due to cardiac arrest before surgical treatment. Emergency surgery was performed on the other three, consisting of left hepatic lobectomy and ligature of the hepatic artery for the hemengioma, and segmented hepatectomy for the adenoma and the hepatocarcinoma. Only the patient with benign tumor survived. Lastly, the authors review the literature, commenting on the clinical, physiopathologic, therapeutic, and prognostic aspects.

Abdomen, Acute↗
PubMed1979

[Myomectomy].

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Female↗