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T J Rohner

Publications and source records attributed to T J Rohner.

At least 19 recordsLinked to original sources
PubMed1998

1997 American Urological Association Gallup survey: Changes in diagnosis and management of prostate cancer and benign prostatic hyperplasia, and other practice trends from 1994 to 1997.

PURPOSE: The American Urological Association first commissioned the Gallup Organization to conduct a study to assess urologist practice patterns in 1992. We present the results of the 1997 survey, the sixth consecutive Gallup survey performed for the Association. MATERIALS AND METHODS: A random sample of 502 American urologists who had completed urological residency and practiced at least 20 hours weekly in 1996 was interviewed by telephone in February and March 1997. RESULTS: Emerging trends showed significant changes since 1994 in how urologists diagnosed and treated prostate cancer. The survey revealed a significant change in the tests routinely ordered to stage newly diagnosed prostate cancer and for diagnostic evaluation of patients with benign prostatic hyperplasia. CONCLUSIONS: Urologists are becoming more cost conscious and effective in ordering pretreatment testing. Urologists are becoming more oriented toward medical treatment for the management of benign prostatic hyperplasia, and less laser surgery is being performed.

Adult↗
PubMed1998

Subspecialization, recruitment and retirement trends of American urologists.

PURPOSE: Trends of urology workforce, subspecialization, recruitment practices, retirement planning, practice characteristics and managed care impacts in the United States were assessed. MATERIALS AND METHODS: In February 1996 the executive interviewing branch of The Gallup Organization selected randomly and interviewed by telephone 507 practicing urologists in the United States who had provided urological patient care for more than 20 hours per week, practiced in 1995 and completed a urological residency program. RESULTS: Several important issues emerged. Urologists think we may be training too many urologists, subspecialty board certification would be a divisive issue to urology as a whole and 90% of urologists have an active retirement plan, although 23% are not funding the plan fully. CONCLUSIONS: The American Urological Association Gallup Poll, as refined by the Health Policy Survey and Research Committee, continues to be a unique and valuable tool in assessing practice patterns, gathering demographic data and measuring opinions of the American urologist. This information will help us chart our way to the twenty-first century.

Adult↗
PubMed1993

Atypical renal adenocarcinoma with features suggesting collecting duct origin and mimicking a mucinous adenocarcinoma.

We report a case of an atypical renal adenocarcinoma of the renal medulla associated with a marked desmoplastic response and interstitial mucin production. Collecting duct epithelium of the renal medulla throughout the kidney showed cytologic atypia. These features have been described by others as suggestive of a collecting duct histogenesis. This case represents the fifteenth reported case known to us of a renal adenocarcinoma of collecting duct origin. Prior reports, however, have not described the extensive mucin production that may be associated.

Adenocarcinoma↗
PubMed1992

Calcium channel agonist/antagonist effects on cholinergic stimulation of the diabetic rat bladder.

The in vitro effects of a calcium channel agonist (BAY K8644) and antagonist (nifedipine) on the cholinergic responses of the streptozotocin-induced diabetic rat bladder were investigated. the bladder body and bladder base were studied separately. There were significant differences in contractile responses to acetylcholine stimulation in the diabetic bladder body compared to the control body. Similarly, the diabetic bladder base demonstrated significantly increased contractile responses compared to the control base. Contractile responses in the diabetic bladder body and base were significantly increased from the control in the absence of extracellular calcium. Differences were found in the effects on maximum responses between diabetic and control tissues treated with nifedipine and BAY K8644. BAY K8644 did not completely reverse the effect of nifedipine on the contractile responses. Rates of contractile response were significantly different between controls and diabetics and between body and base. Alterations in calcium channel activity in diabetic bladder smooth muscle may be responsible at least in part for the nonspecific pharmacologic responses found in smooth muscle strips.

3-Pyridinecarboxylic acid, 1,4-dihydro-2,6-dimethy↗
PubMed1991

Simple urodynamic evaluation of incontinent elderly female nursing home patients. A descriptive analysis.

We present a descriptive analysis of the functional, mental, and urodynamic status of a population of incontinent elderly female nursing home patients. One hundred fifty-five intermediate care female patients with a mean age of 85.5 years were identified as being incontinent of urine at least once daily. After urologic evaluation, each patient was classified into one of four categories: incontinence with normal cystometrogram 68 (44%), detrusor instability (DI) 52 (34%), stress incontinence (SI) 27 (17%), or overflow incontinence (OI) 7 (4%). Thirteen weeks later, patients were again studied using simple water cystometry. At follow-up evaluation, 45 patients (33%) had urodynamic findings which differed from the initial evaluation. Of these women, 10 with DI, 12 with SI, and 2 with OI were found to have normal cystometric parameters at the time of follow-up study, while 19 (14%) who initially had normal cystometric findings had evidence of DI (11) or SI (3). Strong correlation between urinary incontinence in patients with normal cystometric findings and moderate to severe cognitive impairment was present. Simple urodynamic evaluation did identify patients with SI and OI who might benefit from specific therapy. Urodynamic evaluation of incontinent elderly female nursing home patients is indicated and may provide direction for planning treatment strategies.

Activities of Daily Living↗
PubMed1991

Neurogenic function of the diabetic rat bladder: alteration by calcium channel effectors.

The in vitro effects of a calcium channel antagonist (nifedipine) and agonist (BAY K8644) on the neurogenic responses of the streptozotocin-induced diabetic rat bladder were investigated. The bladder body and bladder base were studied separately. There were no significant differences in neurogenic responses in diabetic bladder body compared to control body, but the diabetic bladder base demonstrated an increased contractile response at each frequency compared to control base. The rate of contractile response was similar in controls and diabetics but was significantly different between body and base. Although declining with time, contractile responses in the diabetic bladder body and base were increased from control in the absence of extracellular calcium. Differences were found in effects upon maximum responses between diabetic and control tissues treated with nifedipine and BAY K8644. BAY K8644 did not completely reverse the effect of nifedipine on the neurogenic responses in the diabetic bladder body. Effects of diabetes on the bladder body and base are associated with changes in calcium channel activity of bladder smooth muscle.

3-Pyridinecarboxylic acid, 1,4-dihydro-2,6-dimethy↗
PubMed1991

The efficacy of transrectal ultrasound and prostate cancer.

An increased interest in the diagnosis and treatment of prostate cancer, particularly in the last few years, is reflected in the literature. Numerous articles have been published since 1980 on the subject of imaging of the prostate gland. This article is a review of transrectal ultrasound and its efficacy in the diagnosis and treatment of prostate cancer. Included is a review of the normal prostate anatomy, typical and atypical sonographic features, clinical and radiographic staging of prostate cancer, efficacy of the digital rectal examination, role of ultrasound in prostate cancer screening, surgical treatment, and radiotherapy of prostate cancer.

Adenocarcinoma↗
PubMed1990

Profile of urinary incontinent elderly in long-term care institutions.

This article presents a profile of incontinent elderly in long-term care institutions. One hundred thirty-three frail elderly women were recruited from seven nursing homes in central Pennsylvania for a three-year clinical trial to test the effectiveness of a behavioral therapy on urinary incontinence. All of the patients had more than one medical diagnosis. Eighty percent had cardiorespiratory conditions; the most prevalent diagnoses were cardiovascular diseases. Eighty percent had one or more neurological diseases, including "organic brain syndrome" (47%) and senile dementia (30%); 44% had arthritis/rheumatism. Half of the patients showed severe cognitive impairment; only 12% showed no cognitive impairment. Sixty-three percent were totally dependent; 68% used wheelchairs, 61% were chairbound; 50% had impairments in vision, one-third in hearing, and 14% in speech. Normal bladder capacity, absence of detrusor instability, and satisfactory bladder emptying, as evidenced by low residual urines, was found in 41% of the patients, suggesting that incontinence in this elderly group may not be a primary bladder problem, but rather that mental and physical disabilities may be a more important underlying cause of incontinence in these patients. An important finding in this study is that 34% of the patients had detrusor instability. It is theoretically possible that pharmacologic therapy with anticholinergic agents or imipramine could improve incontinence in this group. Five percent were found to have large residual urine volumes in association with high-capacity bladders suggesting overflow incontinence as the cause of their daily leakage. Pelvic relaxation and stress leakage was far less common in this elderly group of nursing home patients than in young and middle-aged women.

Activities of Daily Living↗
PubMed1990

Cost effectiveness of training incontinent elderly in nursing homes: a randomized clinical trial.

This study used a randomized clinical trial with 133 incontinent elderly in seven nursing homes to evaluate the effectiveness of a behavioral training therapy and its cost implications. The training program lasted three months, and a 22-week follow-up period examined the durability of the treatment effect. The therapy became effective after six weeks of training. By the final months of training, the treatment participants' wet episodes had been reduced by 0.6 episode per day, or a 26 percent reduction over baseline, and improvement was maintained during the follow-up period. Trainees with a high frequency of incontinence during baseline, relatively more cognitive residents, and residents with a normal bladder capacity responded better to this behavioral program. The cost of training was the equivalent of about one hour of nursing aide time per patient day. The reduction in incontinence during the follow-up period resulted in some small savings in laundry costs and supplies used, and some quantitatively unmeasurable but detectable improvement in psychosocial well-being among the trainees. Since the central figure in implementing this training protocol is the nursing aide, it is important to find an organizational management scheme that will stimulate nursing aides to reduce incontinence among nursing home residents.

Aged↗
PubMed1989

A clinical trial of a behavioral therapy to reduce urinary incontinence in nursing homes. Outcome and implications.

One hundred thirty-three incontinent women in seven nursing homes were assigned randomly to a 13-week behavior therapy program for urinary incontinence or to a control group that received usual incontinence-related care. The therapy became effective after 6 weeks of training. By the final month of training, the treatment women's wet episodes had been reduced by 0.6 episodes per day, a 26% reduction over baseline. This reduction in the number of wet episodes was statistically significant, both with respect to this group's baseline levels of incontinence and in comparison with the performance of the control women. The number of wet episodes in the control group remained about the same throughout training and the 22-week follow-up period. The treatment women improved partly because they learned to request help, a response prompted and reinforced by the program. Trainees with a high frequency of incontinence during baseline, the more cognitively intact residents, and residents with normal bladder capacity responded better to this behavior therapy program.

Aged↗
PubMed1989

Transitional cell carcinoma in an ileal conduit.

A 73-year-old man with a history of invasive transitional cell carcinoma of the urinary bladder developed synchronous recurrent transitional cell carcinoma at the ureteroileal anastomosis and the right renal pelvis. Hematuria was the presenting sign in six of the seven previously reported patients with ileal conduit cancer. The pathologic findings, diagnostic procedures and treatment are briefly reviewed.

Aged↗
PubMed1989

Management of simultaneous renal and ureteral calculi: combined extracorporeal shock wave lithotripsy and ureteroscopy under a single anesthetic.

Simultaneously occurring renal and ureteral calculi were treated in 28 renal units combining extracorporeal shock wave lithotripsy and ureteroscopy during a single anesthetic session. Distributions of ureteral calculi removed or attempted to be removed by ureteroscopy were upper third in 3, middle third in 4 and lower third in 21. If ureteroscopy was successful a ureteral stent was placed and extracorporeal shock wave lithotripsy was applied to more proximal renal and upper ureteral calculi. Of 28 renal units 25 (89%) were rendered free of stones or had passable calculi of less than 3 mm. in diameter after a single combined treatment. This combined approach appears to be safe, effective and efficient.

Anesthesia↗
PubMed1989

Cardiovascular evaluation before circulatory arrest for removal of vena caval extension of renal carcinoma.

The use of cardiopulmonary bypass, deep hypothermia and circulatory arrest has decreased the risks of hemorrhage, tumor embolization, incomplete thrombus resection, and warm hepatic and renal ischemia associated with resection of renal cell carcinoma extending into the inferior vena cava above the hepatic veins. Patients about to undergo this operation frequently have significant coronary artery and carotid artery disease, and are at risk for perioperative myocardial infarction and stroke. Preoperative evaluation of the coronary artery and carotid artery circulation by coronary angiography, duplex carotid artery scan and digital subtraction carotid angiography is recommended. Depending upon the severity and location of the cardiovascular disease a sequential or simultaneous operation may be performed. This surgical approach can be used in selected patients to facilitate complete tumor thrombectomy with a low operative risk.

Aged↗
PubMed1987

Importance of acid phosphatase in response criteria for prostate cancer.

The role of acid phosphatase in the definition of response to treatment for prostate cancer is unclear. To better define its predictive value, especially regarding survival rate, we reviewed the clinical course of 76 men with Stage D2 prostate cancer who were treated with combination chemotherapy.

Acid Phosphatase↗
PubMed1986

Spontaneous retroperitoneal hemorrhage secondary to a renal cause.

Spontaneous rupture of normal renal parenchyma must indeed be rare. Virtually all patients in this paper had a significant abnormality that presented with bleeding. Our Case 5 is the only one without a clear underlying pathologic entity. We should stress the high incidence of associated disease in kidneys that bleed "spontaneously" and therefore the need for exploration and/or nephrectomy.

Adult↗