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Biomedical subjects

C O Brantigan

Publications and source records attributed to C O Brantigan.

At least 19 recordsLinked to original sources
PubMed1990

Diagnosis of deep vein thrombosis using real-time B-mode ultrasound imaging.

The authors discuss real-time B-mode imaging in reference to the diagnosis of deep vein thrombosis. This technique is noninvasive, reproducible, painless, and accurate in diagnosing deep vein thrombosis. A case report demonstrating the effectiveness of this modality is presented. The authors believe this diagnostic tool will soon become the procedure of choice in the diagnosis of deep vein thrombosis.

Adult↗
PubMed1986

Common artifacts of pulmonary artery and pulmonary artery wedge pressures: recognition and interpretation.

Bedside measurement of pulmonary artery pressure and pulmonary artery wedge pressure has an important role in the management of critically ill patients. Unfortunately, waveform abnormalities and artifacts commonly distort numeric values and lead to incorrect therapeutic decisions. The clinical impact of these artifacts is magnified by the digital pressure displays used in most intensive care units. We present here an atlas and an analysis of the artifacts that commonly occur. Use of analog rather than digital pulmonary artery wedge pressure data, when combined with an understanding of the physiological characteristics of patients, can prevent critical errors in patient management.

Cardiac Catheterization↗
PubMed1982

Effect of beta blockade and beta stimulation on stage fright.

Stage fright, physiologically the "fight or flight" reaction, is a disabling condition to the professional musician. Because it is mediated by the sympathetic nervous system, we have investigated the effects of beta blockade on musical performance with propranolol in a double blind fashion and the effects of beta stimulation using terbutaline. Stage fright symptoms were evaluated in two trials, which included a total of 29 subjects, by questionnaire and by the State Trai Anxiety Inventory. Quality of musical performance was evaluated by experienced music critics. Beta blockade eliminates the physical impediments to performance caused by stage fright and even eliminates the dry mouth so frequently encountered. The quality of musical performance as judged by experienced music critics is significantly improved. This effect is achieved without tranquilization. Beta stimulating drugs increase stage fright problems, and should be used in performing musicians only after consideration of the detrimental effects which they may have on musical performance.

Adrenergic beta-Agonists↗
PubMed1982

Subglottic stenosis after cricothyroidotomy.

Analysis of the case histories of 17 patients who developed subglottic obstruction following cricothyroidotomy shows that all 10 patients with chronic stenosis had acute laryngeal pathology at the time of initial operation. Seven patients were identified as having acute subglottic obstruction with granulation tissue. Although these patients were effectively managed by local means, ineffective management of intratracheal granulation tissue may convert a minor, temporary problem into a serious chronic obstruction. Cricothyroidotomy is appropriately used for prolonged airway access only in patients free of acute laryngeal pathology.

Adolescent↗
PubMed1981

Intimal breakdown causing failure of human umbilical vein graft.

Early graft failure secondary to intimal breakdown with subsequent hemorrhage into and dissection of the wall of a modified human umbilical cord vein allograft occurred. Early recognition and immediate graft replacement will undoubtedly minimize further morbidity to the patient. To our knowledge, this is the first case of early graft failure from this cause described in the literature.

Arterial Occlusive Diseases↗
PubMed1979

Obstructive complications of the Nissen fundoplication.

The obstructive complications of the Nissen fundoplication can be devastating. They are much more easily prevented than treated. The technical considerations in avoiding these complications are conceptually simple. The fundoplication should be done over a large intraesophageal stent. A no. 50 or 60 French dilator is appropriate and, in addition, the fundoplication should be left loose. If the fundoplication is to be left in the chest, the hiatus must be widely enlarged so that there is not the slightest hint of obstruction at the level of the diagphragm. Care must be taken in this case to approximate stomach to diaphragm. The Nissen fundoplication should be carried out using heavy sutures with generous bites of the stomach on both sides as well as bites of the esophageal wall and perhaps also the proximal stomach. If careful attention is paid to these technical details, the obstructive complications of the Nissen fundoplication should be eliminated.

Adult↗
PubMed1979

The broken wire suture.

The body is a hostile environment for wire sutures. Although the problems of electrochemical corrosion, direct chemical attack on the suture, and inflammation produced in reaction to the suture have been largley eliminated by the use of austenitic stainless steel wires, failure of the wires may still occur due to mechano-chemical cracking -- the combined effect of insignificant stresses, usually from cold working, and insignificant chemical potentials produced by body fluids. Although stainless steel wire remains a satisfactory material for sternotomy closure or for reattaching costal cartilages, the two spectacular complications of a broken wire point out the need for care in using wire sutures. Bending, twisting, kinking and knotting must be avoided as much as possible.

Adult↗
PubMed1978

Evaluation of technetium scanning for myocardial contusion.

Myocardial contusion is a serious problem not easily diagnosed. Laboratory and clinical studies carried out on myocardial infarction suggested that Technetium scanning might clarify this diagnostic dilemma. Radionuclide imaging with Technetium was carried out in 29 patients suspected of having myocardial contusion. Of 13 patients in whom contusion was confirmed electrocardiographically, scan was positive in only two. Use of the technique in diagnosis of myocardial contusion is not recommended.

Adolescent↗
PubMed1978

Left ventricular outflow obstruction produced by a pedunculated fibroma in a newborn: clinical, angiographic, echocardiographic and surgical observations.

An unusual case of a one-day-old infant with significant left ventricular outflow obstruction produced by a pedunculated fibroma is described. The clinical findings were indistinguishable from severe valvular or subvalvular aortic stenosis. The tumor was difficult to detect by echocardiography. It produced an echo-free widening of the left ventricular outflow tract. Left ventricular cineangiography clearly demonstrated a mobile mass beneath the aortic valve.

Aortic Valve Stenosis↗