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Biomedical subjects

P F Joyce

Publications and source records attributed to P F Joyce.

12 recordsLinked to original sources
PubMed1991

Sonographic evaluation of renal artery aneurysm in childhood.

We report a child presenting with renovascular hypertension and sonographic evidence of a renal artery aneurysm (RAA). The diagnosis of RAA was made sonographically by demonstrating vascular flow in an aneurysmal segment adjacent to but continuous with the right renal artery and externally compressing the inferior vena cava. Comparison of the sonographic studies and an abdominal angiogram illustrate the sensitivity of sonography in diagnosing this condition. We suggest that with renal doppler sonography, RAA may be diagnosed less invasively and possibly with greater frequency yet believe that the gold standard of angiography is necessary prior to surgical intervention.

Aneurysm↗
PubMed1981

A study of auditory preferences in nonhandicapped infants and infants with Down's syndrome.

11 infants with Down's syndrome (MA 9.2 months, CA 12.7 months) and 10 of 11 nonhandicapped infants (MA 9.6 months, CA 9.3 months) demonstrated that they could operate an automated device which enabled them to choose to listen to 1 of a pair of auditory signals. All subjects showed preferential responding. Both groups of infants showed a significant preference for nursery rhymes sung by a female voice rather than played on musical instruments. The infants with Down's syndrome had much longer response durations for the more complex auditory stimuli. The apparatus provides a useful technique for studying language development in both normal and abnormal populations.

Attention↗
PubMed1980

Embolization of extensive peripheral angiodysplasias. The alternative to radical surgery.

We describe two patients with extensive pelvic and lower limb angiodysplasias, in whom hemodynamic complications subsequently developed. These have been treated by selective angiography and multiple percutaneous transcatheter embolizations with satisfactory results (1 1/2 to four years of follow-up). One patient had had three previous operations with no improvement; amputation was the only surgical alternative. In the other patient, hip disarticulation and hemipelvectomy was seriously considered because of cardiac failure not responding to medical therapy. We review the literature and use our cases to illustrate points of technique and reemphasize the essential role of therapeutic embolization in the management of extensive angiodysplasia.

Adolescent↗
PubMed1979

Preoperative embolization of Wilms' tumors.

In two patients with Wilms' tumors, the ipsilateral kidney was nonfunctional. To facilitate initial surgical removal of the tumors, a preoperative transcatheter embolization was performed following diagnostic arteriography. Preoperative embolization of a renal tumor reduces the vascularity of the lesion prior to surgery, and a patient in whom primary surgical removal of the tumor would carry unacceptable risk may be converted into one in whom primary surgical removal is safe.

Child↗
PubMed1979

Terminal phalangeal tufts: earliest site of renal osteodystrophy findings in hemodialysis patients.

Direct magnificaiton of the hands of 44 patients on maintenance hemodialysis showed that the earliest unequivocal changes of renal osteodystrophy occur in the tufts. Some workers made a similar observation, but no previous objective study confirmed or refuted the sensitivity of the tufts in the diagnosis of renal osteodystrophy. The macroradiograph is consistently reproducible and serves as an excellent visual record of subtle changes.

Chronic Kidney Disease-Mineral and Bone Disorder↗
PubMed1979

CT as a primary diagnostic method in evaluating intraabdominal abscess.

In 19 cases, a correct diagnosis of intraabdominal abscess was made by CT body scanning. There was one false-positive diagnosis and initially one false-negative diagnosis. CT proved to be an efficient imaging method for diagnosis, for planning of therapeutic procedures, and in monitoring response to operative or conservative treatment. It has advantages over ultrasound and gallium scanning especially in severely ill, postoperative, and obese subjects. In addition, needle aspiration under CT control is readily performed and can be undertaken at the same examination. Confirmation of the diagnosis and therapeutic aspiration with or without introduction of a drainage catheter can then be undertaken.

Abdomen, Acute↗
PubMed1978

Preoperative angiographic diagnosis of small bowel leiomyomas.

Two patients with gastrointestinal (GI) tract bleeding underwent preoperative selective visceral arteriography that demonstrated small-bowel tumors compatible with leiomyoma. A review of the material indicates that 42% of patients with small-bowel leiomyomas also have GI tract bleeding. Arteriography is valuable in obtaining a preoperative diagnosis.

Adult↗
PubMedDate not supplied

Comparison of Hexabrix 320 and Hexabrix 250 in aortoperipheral arteriography: towards cheaper low osmolar contrast media?

A prospective double-blind, randomized study was undertaken to compare the diagnostic accuracy of, and patient tolerance to, sodium meglumine ioxaglate 320 (Hexabrix 320) and sodium meglumine ioxaglate 250 (Hexabrix 250) in aortoperipheral arteriography. There was no significant difference in the incidence or severity of side effects, or radiographic diagnostic quality. Hexabrix 250 is expected to be at least 20% cheaper, and retains all the advantages of the already available low osmolar contrast media.

Aged↗