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Biomedical subjects

T C McCarthy

Publications and source records attributed to T C McCarthy.

7 recordsLinked to original sources
PubMed1990

Rhinoscopy.

This article presents a diagnostic protocol for nasal disease evaluation that provides consistent success in diagnosis of chronic cases. The protocol includes history, physical examination, blood clinical pathology assessment, radiographs, culture and sensitivity tests, rhinoscopy, histopathology, fungal serology, and allergy screening. The sequence of diagnostic procedures and their techniques are discussed, and rhinoscopic appearance of the normal nasal cavity is presented, along with findings of commonly seen nasal diseases, including neoplasia, mycotic rhinitis and sinusitis, foreign body obstruction, dental disease, allergic rhinitis, bacterial rhinitis, and idiopathic rhinitis. Rhinoscopy is a highly effective diagnostic technique with minimal morbidity and mortality that has virtually eliminated the need for exploratory rhinotomy.

Animals↗
PubMed1990

Cystoscopy.

Cystoscopy is a diagnostic and therapeutic procedure commonly employed in human medicine but that has received limited application in small animal practice. Readily applicable, cost-effective instruments are available for use in the dog and cat. The urethral opening, urethra, bladder, and ureteral openings can be effectively assessed, and samples can be collected for histopathology, cultures, and stone analysis. Cystoscopy is indicated for assessment of chronic cystitis, hematuria, tenesmus, increased frequency of urination, urinary incontinence, alteration of urinary stream, trauma, and cystic and urethral calculi. Most cases can be evaluated transurethrally; the rest can be assessed by prepubic percutaneous cystoscopy.

Animals↗
PubMed1990

Thoracoscopy.

This article presents endoscopic evaluation of the pleural cavity, or thoracoscopy, an effective diagnostic technique that can be employed to provide additional diagnostic information in cases of intrathoracic disease. The techniques of thoracoscopy are described, and normal and abnormal findings are discussed. Thoracoscopy allows visual examination of the pleural space and surrounding structures without surgical exploration. The stress, expense, morbidity, and mortality of thoracoscopy are far less than those of thoracotomy. Disease for which thoracoscopy has been employed diagnostically include primary and metastatic neoplasia, hilar lymphadenopathy, pericardial effusion, spontaneous pneumothorax, and diaphragmatic hernia. Therapeutically, thoracoscopy has been used for drainage of pericardial effusion.

Animals↗
PubMed1977

Bone-methyl methacrylate interfacial shear strength: an experimental study of dogs.

Bone-methyl methacrylate interfacial shear strength at failure in chronically implanted hip prostheses was studied. Gorman total hip prostheses fixed with methyl methacrylate bone cement were implanted in 6 large dogs. Interface shear strength studies were performed at 8, 16, and 24 weeks. Mechanical testing determined that the mean interfacial shear strength was 15.2 +/- 13.0 kg/cm2. Variability of the data was too great to allow conclusions to be drawn from statistical analysis, but trends in the data were observed. It was concluded that the interfacial bond had sufficient strength to withstand axial loads 3 to 6 times greater than those applied under normal physiologic conditions.

Animals↗
PubMed1976

Physiological data collection system for field use in trained military dogs.

This research program resulted in synthesis of a complete system for "in the field" collection of dynamic physiologic data from trained military dogs. Sensors and sensor implantation techniques were developed for arterial blood pressure, electroencephalogram, electrooculogram, temperature, and respiratory rate monitoring in dogs under strenuous field conditions. A data acquisition system was developed that provided the capability for recording this physiologic data for later computer analysis, and computer programs were written for evaluation of the data. In the final evaluation of the system, two factors indicated a need for additional refinement: (1) that of reducing EEG signal artifact due to cable capacitance and, (2) signal jitter caused by the casette recorder.

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