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Biomedical subjects

K Ford

Publications and source records attributed to K Ford.

At least 109 records · Page 6Linked to original sources
PubMed1986

Digital subtraction arthrography of the prosthetic hip.

Digital subtraction techniques are easily adapted to the evaluation of loosening in total hip prostheses, allowing real time review of injection dynamics and data manipulation after the study. We have successfully used both standard radiographic and digital imaging techniques in the evaluation of 15 prosthetic hip joints. The digital results are comparable to and often better than those of standard radiographic techniques for the evaluation of loosening in total hip prostheses.

Arthrography↗
PubMed1985

Technique to facilitate percutaneous nephrostomy in non-obstructed kidneys.

A technique for performing antegrade pyelography during nephrotomy is described--puncture with a 21-gauge, 20-cm Cope needle, placement of a 0.018-inch SMG mandril "coat-hanger"-shaped guidewire, with the needle exchanged for a 3-French multi-sidehole dilator. Use of the 3-French dilator provides more security and less trauma to the renal pelvis; nephrotomy time is also curtailed. In 25 patients the technique was used successfully with 2 minor complications.

Humans↗
PubMed1985

Contraceptive usage during lactation: analysis of 1973 and 1976 National Survey of Family Growth: I. Age and race.

Data from the National Survey of Family Growth are analyzed to estimate the prevalence of contraceptive use during lactation. Approximately 20 per cent of lactating women were sexually active and did not use a method in months two through six, postpartum. Among method users, the largest proportion chose barrier methods but 14 per cent used oral contraceptives in the early postpartum period. Between 1973 and 1976 there was an increase in the percentage of women who utilized a contraceptive method during lactation and a decrease in the per cent using oral contraceptives.

Adolescent↗
PubMed1985

Percutaneous approach to nephrolithiasis.

Percutaneous techniques were successful in removing stones from 101 (92%) of 110 kidneys attempted. Ultrasonic lithotripsy was used on 80 kidneys in 74 patients with stones 5-38 mm in diameter. The most common complication was incomplete disintegration with retained stone fragments. Twenty patients were treated by direct stone extraction, either by a stone basket or forceps. The average hospitalization for percutaneous stone removal of 10 days was not significantly different from that for open nephrolithotomy. However, patients undergoing percutaneous stone removal had only a 3-10 day convalescence after hospital discharge before returning to normal activity.

Adolescent↗
PubMed1984

Humanitarian and financial costs in alcoholics: a preliminary study of 15 cases.

A small sample of hospitalised alcoholics had life-time dollar costs and humanitarian costs estimated. Costs per drinking year were heaviest in the 19-29 year old age group, particularly in relationship to health care and sickness benefit received. Social and humanitarian costs are more similar across the age groups. It is concluded that admission occurs when these costs reach a critical level, and is not solely a function of recent drinking levels. It is suggested that the relative costliness of young people admitted for alcoholism represents a new accelerated subsyndrome of alcoholism, presumably a product of the wealthy, liberal culture of the 1960s and 1970s. The costs of health care of the sample are apparently not covered by excise and sales taxes.

Adult↗
PubMed1984

Percutaneous transluminal angioplasty in diabetic patients: an effective treatment modality.

Percutaneous transluminal angioplasty (PTA) was performed for nonhealing ulcers, severe claudication, or rest pain in 10 patients with diabetes mellitus. Twenty-two atherosclerotic lesions were dilated in 15 extremities, including 16 iliofemoral arteries and 6 superficial femoral arteries. The procedure was technically successful in all patients and 8 of 9 (89%) with clinical follow-up showed improvement clinically after the procedure. Diabetes is not a contraindication to PTA; rather this modality can be used effectively to control and treat peripheral vascular insufficiency in diabetic patients.

Aged↗
PubMed1984

Intraarterial digital subtraction angiography in hypertensive azotemic patients.

Ten intraarterial digital subtraction angiography studies in nine azotemic patients were reviewed to assess the technical adequacy and the effect of contrast load on renal function. All studies were of diagnostic quality. In only two of 10 studies was there a mild transient deterioration in the degree of renal insufficiency. Intraarterial digital subtraction angiography is a reliable method that can be used to evaluate the renal arteries, even in the presence of azotemia.

Aged↗
PubMed1984

Ventilation-perfusion scanning and pulmonary angiography: correlation in clinical high-probability pulmonary embolism.

During a 3-year period, 173 clinically selected patients underwent pulmonary angiography to confirm or exclude acute pulmonary embolism. All patients had undergone ventilation-perfusion (V/Q) scanning (167 patients) or perfusion scanning alone (six) before angiography. Angiography was done because the results of the V/Q scanning did not satisfy the clinician's needs for certainty. The results of the V/Q and studies were compared to determine the relative accuracy of V/Q scanning in this clinical setting. Pulmonary embolism was found in seven (15%) of 47 patients with low-probability scans, 11 (32%) of 34 patients with intermediate-probability scans, 22 (39%) of 57 patients with indeterminate scans, and 23 (66%) of 35 patients with high-probability scans. In this clinically selected population, low-probability scans were more accurate in excluding pulmonary embolism than were high-probability scans in establishing that diagnosis.

Humans↗
PubMed1983

The radionuclide renogram as a predictor of relative renal blood flow.

Radionuclide renograms obtained with Tc-99m-DTPA were used to calculate relative renal blood flow in 16 dogs. In 13 of these dogs, relative blood flow ratios (R:L) calculated from the renograms were correlated with ratios measured with an electromagnetic flowmeter or with radiolabeled microspheres. The results indicate that Tc-99m-DTPA renograms can be used to make an accurate prediction of relative renal blood flow.

Animals↗
PubMed1983

Closed-system venography in the evaluation of angiodysplastic lesions of the extremities.

Closed-system venography is a minimally invasive, well tolerated method for diagnosing and delineating extremity angiodysplastic lesions. This method involves passive filling of the vascular tree after compressive exsanguination of an extremity and extrinsic occlusion of its arterial supply and venous drainage, thereby creating a static, closed system. Closed-system venography was done in 17 patients, where it correctly identified 11 of 12 surgically confirmed vascular abnormalities. There were no false-positive examinations. Whereas ateriography remains the examination of choice in studying arteriovenous malformations, closed-system venography has demonstrated a superior ability to diagnose and define lesions of capillary and venous origin.

Adolescent↗
PubMed1982

Seminal vesiculography: limited value in vesiculitis.

Seminal vesiculograms were performed on 44 men being evaluated for chronic perineal pain consistent with seminal vesiculitis. The vesiculograms were performed prior to antibiotic instillation into the vas deferens. Vesiculograms were abnormal in 32 of the 44 patients (73%). The most common abnormality was the presence of multiple small diverticula producing a feathery appearance of the vas deferens (64%), a finding present in only 19 per cent of patients being evaluated for infertility and 20 per cent of normal patients. Asymmetry and incomplete filling of the seminal vesicles were less common abnormalities. Seventeen of these patients had seminal vesiculectomies for persistent or recurrent pain, and 15 have been followed long enough to assess the results. The histologic examination of the excised seminal vesicles was abnormal in only 3 patients (20%), despite radiographic abnormalities in 10 (67%) and improvement after surgery in 12 (80%). Seminal vesiculography may be useful to exclude anatomic abnormalities prior to instillation, but does not appear sufficiently specific to warrant use as the primary diagnostic examination for patients suspected of having seminal vesiculitis.

Adult↗
PubMed1982

The role of seminal vesiculography in the evaluation of male infertility.

Although most cases of male infertility are the result of primary testicular abnormalities (either maturation arrest, decreased spermatogenesis, or germinal hypoplasia), obstruction of the genital tract is a well recognized and potentially correctable cause of infertility. Seminal vesiculography is an excellent method of evaluating the male genital tract not only for obstruction but also for other structural lesions that may cause infertility. In 27 patients undergoing vesiculography as part of an evaluation of infertility, obstruction was found in 25%. Three patients (11%) were found to have nonobstructing structural lesions as a possible cause of infertility. Patients with obstructive lesions were found to have significantly lower semen volumes than those with patent outflow tracts. The continued role of seminal vesiculography in the evaluation of male infertility is discussed.

Adult↗
PubMed1982

Review. In utero sonographic diagnosis of fetal cerebral anomalies.

Obstetric sonography can be used to diagnose anomalies in the fetal brain. Cystic masses in the fetal brain may be due to hydrocephalus, hydranencephaly, holoprosencephaly, or arachnoid cysts. The relations of the falx cerebrum, ventricular system, and cerebral convexities are essential in distinguishing among these anomalies. Anencephaly and encephaloceles can also be detected by sonography. A review of the literature and experience with 10 cases is discussed.

Anencephaly↗
PubMed1981

Cis-diamminedichloroplatinum (II) in locally advanced and metastatic urothelial cancer.

Twenty-seven consecutive patients with locally extensive or metastatic urothelial cancer, primarily bladder, were given cis-diamminedichloroplatinum (II) (DDP) at a dose of 70 mg/m2 every three weeks. All patients had hydration and mannitol-induced diuresis initiated before administration of DDP. Nine patients (33%) had a partial response; 12 (45%) remained stable for an average duration of six months. Responders had a significantly greater survival than nonresponders. Although severe nephrotoxicity did not occur, patients with either a solitary or obstructed kidney were at greater risk of an increase in the serum creatinine during therapy.

Adult↗