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Biomedical subjects

F M Hall

Publications and source records attributed to F M Hall.

At least 199 records · Page 11Linked to original sources
PubMed1983

Preoperative localization of nonpalpable breast lesions using a wire marker and perforated mammographic grid.

Preoperative wire localization of mammographically identified nonpalpable breast lesions is facilitated by using a perforated mammographic compression plate. This device is used in conjunction with a self-retaining wire, and its use results in accurate placement of the wire-marker tip in close proximity to the mammographically suspicious lesion. In 39 of 47 lesions, the wire tip was within 1.0 cm of the lesion, and in 45 of 47 lesions, the wire tip was within 1.5 cm of the lesion.

Adult↗
PubMed1983

Severe postappendectomy bleeding.

Postappendectomy bleeding is a rare and occasionally catastrophic phenomenon. Three cases of bleeding, two into the retroperitoneum and one into the gastrointestinal tract, are reported, and 13 other cases collected from the literature are reviewed. Retroperitoneal hematoma may require reoperation because of infection. Bleeding in the gastrointestinal tract may occur early (mean, 4 days), or late (mean, 7 years). An unligated stump or slippage of the tie around the stump are the main causes of early bleeding. Sixty-six per cent of the patients recovered without further bleeding. All six patients with late rectal bleeding required surgery for control of the bleeder. Causes included ulceration, vascular malformation, or granuloma.

Acute Disease↗
PubMed1982

A co-operative study on the clinical value of dynamic renal scanning with deconvolution analysis.

An international project was set up to study the clinical usefulness of intrarenal transit times derived from the renogram by deconvolution. A common data sheet, to collect clinical, biochemical, radiological and isotopic information, was completed by the centres. Five hundred and ninety-one patients were studied and the results analysed. The mean transit time (MTT) in normal kidneys was found to be 3.6 +/- 1.1 min. If the MTT is greater than 7.6 min, a kidney is likely to be obstructed. In vesico-ureteric reflux, the transit times are prolonged, but they are normal in infection, hypertension, parenchymal disease and minimally irradiated kidneys. In transplantation, when the kidney is normal, the transit times are shorter than in the natural kidney; in acute rejection, transit time are prolonged.

Adult↗
PubMed1981

Pseudohypoparathyroidism presenting as renal osteodystrophy.

Pseudohypoparathyroidism (pseudo HPT) is the prototype of a group of diseases with end organ unresponsiveness to parathyroid hormone (PTH). Patients with the classic form of this disease have both renal and osseous resistance to PTH. We describe a rare variant of pseudo HPT with classic renal unresponsiveness to PTH but normal skeletal responsiveness to this hormone. The latter patients develop metabolic bone disease in response to depressed calcium and elevated PTH levels. Skeletal abnormalities are histologically and radiologically indistinguishable from renal osteodystrophy and these patients frequently present in childhood with symptoms relating to slipped capital femoral epiphyses. The latter radiologic findings, in the face of normal renal function or the classic somatic features of the syndrome, are highly suggestive of pseudo HPT with normal skeletal responsiveness to PTH.

Calcium↗
PubMed1981

Morbidity from shoulder arthrography: etiology, incidence, and prevention.

A prospective study was performed to assess patient discomfort after shoulder arthrography. Three different techniques were compared using equal intraarticular volumes of: positive contrast medium alone, positive contrast medium diluted with local anesthetic, or positive contrast medium and air. Moderate or severe exacerbation of baseline shoulder discomfort, when evaluated 24-48 hr after arthrography, occurred in 74% of all patients. There was significantly less discomfort after double-contrast examinations than after other techniques, although the level of morbidity was still high. This incidence and severity of discomfort after shoulder arthrography is higher than previously reported or generally recognized. Morbidity after shoulder arthrography is probably caused by a direct irritant effect of the positive contrast medium and/or the additional influx of fluid, into an already distended joint, in response to the hyperosmolar positive contrast medium. The latter effect is consistent with the delayed onset of symptoms which usually began 4-6 hr after the procedure, peaked in intensity 12 hr later and, when severe, often lasted for several days. Smaller volumes of intraarticular contrast medium and/or the use of nonionic and polymeric contrast agents, untested in this protocol, might reduce these symptoms.

Anesthesia, Local↗
PubMed1981

Pain in knee arthrography: comparison of air vs. CO2 and reaspiration vs. no reaspiration.

A prospective study of 255 patients undergoing double-contrast arthrography of the knee was performed to evaluate postexamination knee pain after two procedural modifications: (1) intraarticular carbon dioxide versus room air and (2) postprocedural joint reaspiration versus no reaspiration. A moderate or severe increase in pain during the 24 hr after the examination was experienced by 20% of patients. Carbon dioxide resulted in slightly greater patient pain immediately after the procedure than did room air. However, there was no difference in morbidity in these two groups at 24 hr. Aspiration of the knee joint had no immediate or delayed effect on patient pain. Older patients, women, and patients with abnormal arthrograms, reported more baseline discomfort but, allowing for this, they tolerated the procedure as well as younger patients, men, and patients with normal arthrograms. It is recommended that double contrast arthrography of the knee be performed using intraarticular air without reaspiration of the joint.

Adult↗