Haematology outreach clinics in the Free State and northern Cape.

OBJECTIVE: Evaluation of haematology outreach clinics in the Northern Cape and Free State. DESIGN: Retrospective analysis of records from March 1994 to February 1996. SETTING: Central South Africa is sparsely populated. Consultants from Bloemfontein held outpatient clinics in hospitals (with laboratories) in Bethlehem, Kimberley and Kroonstad. SUBJECTS: 117 patients with suspected haematological disease. MAIN OUTCOME MEASURES: Input measures (population, number of clinics and costs), process measures (patient numbers, patients per clinic, new consultations per clinic, patients' domicile, how they were referred, types of diagnoses and number of patients with non-haematological disorders) and output measures (attrition, changes in attendance and savings). MAIN RESULTS: The 84 clinics that were held, with 636 consultations, did not cost the State anything. Only 6% of the 117 patients had no haematological problem. Sixty-eight per cent had chronic haematological neoplasms. In Kimberley most of the patients came from Kimberley Hospital, while most of the patients at the other clinics were referred via Bloemfontein. There was only a 10% attrition rate and only one-third of patients were referred to Bloemfontein. We saved paying patients an estimated R21,260 in transport costs, while saving the State R172,992 by seeing patients at secondary, instead of tertiary, hospitals. CONCLUSIONS: It is cheaper to send a doctor to an outreach clinic than to refer patients to a central facility, provided there is enough work for a doctor at the clinic. It costs the State much less for patients to be seen at a secondary than a tertiary hospital. Positive spin-offs include academic stimulation of doctors and laboratories in the periphery, with more appropriate referrals to teaching hospitals. Weaknesses include poor availability of expensive drugs at the clinics and lack of standardised records. By commuting to outreach clinics, specialists can greatly reduce health expenditure and spread it from tertiary to lower levels. At the same time more patients have access to their services.

Radiation dose estimates of 186Re-hydroxyethylidene diphosphonate for palliation of metastatic osseous lesions: an animal model study.

A common complication in patients with breast or prostate cancer is bone metastases causing pain. New radionuclide therapy methods have recently been proposed for palliation, including 186Re-hydroxyethylidene diphosphonate (186Re-HEDP). This paper reports on the local development of 186Re-HEDP and the biodistribution studied in animals for eventual use in patients. Adult dose was computed assuming a 70 kg standard man. The 186Re was labelled to HEDP using standard techniques. The biodistribution in five Chacma baboons (Papio ursinus) was studied. Doses ranging from 39.4 to 44.9 MBq kg(-1) (mean 43.6 +/- 2.8 MBq kg[-1]) were administered, corresponding to an adult human dose of 2960 MBq (80 mCi). Whole-body images of the animals were obtained with a dual-headed scintillation camera on an hourly basis for 6 h post-injection and then daily for 3 days. The bone, soft tissue, kidneys and urinary bladder were considered source organs and data from these organs were used in a compartmental model to obtain the mean residence times of the radionuclide in the different source organs. Radiation dose estimates for 186Re-HEDP were subsequently obtained with the MIRDOSE 3 program. The estimated absorbed radiation doses to some of the organs (expressed in mGy MBq[-l]) were as follows: bone surface 1.69; kidneys 0.09; liver 0.04; ovaries 0.04; red marrow 0.75; total body 0.12; urinary bladder wall 0.43. 186Re-HEDP yielded an effective dose of 0.17 mSv MBq(-1). The radiation dose delivered to the bone marrow in this study did not cause any detrimental effect to the baboons, indicating that locally produced 186Re-HEDP is suitable for clinical use.

Peyronie's disease--a perspective on the disease and the long-term results of radiotherapy.

From 1966 to 1988, 98 of 108 patients with symptomatic Peyronie's disease received radiotherapy at our institution. In 11 of 61 patients (18%) who attended the clinic regularly for follow-up for longer than a year, new lesions distinct from the original lesions developed. This confirms that there is progression of the disease in a substantial number of cases after treatment. Long-term follow-up over an average of 111.5 months was achieved by means of a questionnaire in 47 of the 98 cases (48%). Forty-one of these patients (87.2%) had sexual intercourse after radiation. Twenty-eight of the 41 (68.3%) still have intercourse. Their average age at present is 59.6 years while the average age of the 13 patients (31.7%) not having intercourse is 70.9 years. The decline in sexual activity is thus age-related. Twenty-one of 25 patients (84%) experienced relief from pain, and angulation of the penis improved in 17 of 44 patients (38.6%) after radiotherapy. Radiotherapy may therefore be of benefit to patients with active Peyronie's disease and should be investigated in a randomised controlled study.

Racial differences in patients with adenocarcinoma of the endometrium.

OBJECTIVE: To determine the differences between white and black women with regard to the presentation and behavior of adenocarcinoma of the endometrium. METHOD: Records of 273 (68%) white patients and 117 (32%) black patients with endometrial adenocarcinoma were reviewed in Bloemfontein, South Africa. Survival data was calculated according to the direct method where losses in follow-up were regarded as tumor deaths. RESULTS: Most patients (82%) were treated by pre-operative radium followed by total abdominal hysterectomy and bilateral salpingo-oophorectomy, with post-operative external irradiation where indicated. Pre-operatively, fewer black women had reached FIGO stage I, while a larger number had advanced to stages II-IV (P = 0.0024). In addition, the tumor differentiation was more often poor in the black group (P < 0.0001). Ten-year follow-up was achieved in 84% of the white patients and 51% of the black patients and the 10-year survival figures were 67% for white patients and 28% for blacks (P < 0.0001). CONCLUSION: Endometrial adenocarcinoma is a more aggressive disease in black women than it is in whites.

[Palliative radiation schedules with and without chemotherapy in advanced carcinoma of the esophagus]. / Palliërende bestralingskedules met en sonder chemoterapie in gevorderde karsinoom van die esofagus.

In a prospective randomized study, 272 patients with advanced oesophageal cancer were treated with radiation and bleomycin or vinblastine or a combination of both cytostatics. Two radiation schedules were tested, the one involving larger fractions in a shorter period of time. Evaluation of the treatment results showed that 67% of patients experienced significant relief of dysphagia. The median survival was 3 months and the 1-year survival 7%. No statistical difference in survival was noted among the different chemotherapy or radiation groups (level of significance 5%). It was concluded that monochemotherapy as given in this study made no difference in the treatment result. The larger radiation fraction and shorter treatment time schedule was as effective as the more conventional schedule and is the preferred treatment because of the shorter hospitalization period. A pharyngostomy tube proved effective in feeding the patients. Oesophageal cancer is a systemic disease and polychemotherapy will have to play a prominent part in a multimodality treatment approach if results are to improve.