Interruptions to the physician-patient encounter: an intervention program.

BACKGROUND: Israeli physicians are very familiar with the problem of interruptions during encounters with patients. However, a thorough search of the medical literature revealed only one report of this problem from Israel, and none from other countries. OBJECTIVES: To characterize the phenomenon of interruptions to the patient-physician encounter in a clinic in Dimona and to assess the effect of an intervention program designed to reduce the magnitude of this problem. METHODS: During an 8 day work period in March 1997 all patient-physician encounters were recorded and characterized. An intervention program was then designed and implemented to reduce the number of interruptions. Data were again collected a year after the initial data collection. RESULTS: During the 8 day study period prior to the intervention program there were 528 interruptions to 379 encounters (mean of 1.39 per encounter). The main causes of interruptions were entrance of uninvited patients to the examination room (31%) and telephone calls (27%). Most of the interruptions occurred during the morning hours between 8 and 10 a.m. (45%) and at the beginning of the week (Sunday 30%). After the intervention program there were 402 interruptions to 355 encounters (mean of 1.13 per appointment, P = 0.21). CONCLUSIONS: There was no statistically significant improvement in the number of interruptions following the intervention program. This finding is either the result of a local cultural phenomenon, or it indicates a national primary care health system problem that may require a long-term educational program to resolve it. Further research is needed on the magnitude, causes and consequences of interruptions in family practice and, if warranted, methods will have to devised to cope with this serious problem.

Hypertension Control Program of the Negev: evaluation after two years of intervention.

In 1981 a nationwide effort to control high blood pressure was implemented. One of the first programs was the "Hypertension Control Program of the Negev." The program's major objective was to introduce early detection and improve diagnostic, treatment, and follow-up procedures to 27 primary-care clinics of the area. The evaluation was based on the program's three levels of intervention: (a) basic training program and written protocol, containing guidelines for diagnosis, treatment, and follow-up; (b) additional consultation in the primary-care clinics by internal medicine specialists from the regional medical center, and (c) additional consultation in the primary-care clinics by the hypertension unit's medical team. In 1981 (prior to any intervention) a random sample of 5,717 medical records of the target population (30 years or older) was reviewed. High blood pressure was found in 1,032 patients (18%); however, a written diagnosis of hypertension was recorded in only 57% of these cases, and of these only 37% were being regularly treated for high blood pressure. In 1983, a second, independent random sample of 7,791 records was reviewed. High blood pressure was again found in 18% (1,428) of the cases, but 69% of these had a recorded high blood pressure diagnosis (a relative increase of 21% from 1981), and 85% of these were treated for high blood pressure (a relative increase of 130%). Improved performance in the steps of care provided for high blood pressure was observed in all the clinics. Surprisingly, the percentage of well-controlled patients increased only in those clinics where the staff gave consultation services.(ABSTRACT TRUNCATED AT 250 WORDS)

Myeloma cells: surface morphology as seen by scanning and transmission electron microscopy.

Cells from cultured murine myeloma cell lines and circulating leukemic plasma cells from two patients with generalized myeloma were studied by transmission and scanning electron microscopy. Both circulating and cultured cells exhibited consistent surface architectures. Microvilli and varying numbers of prominent blebs of different sizes were seen. The presence of surface blebs is a characteristic feature of secreting and nonsecreting myeloma cells.

Acute lymphoblastic leukemia: a study of 25 cases by scanning electron microscopy.

Cells from 25 cases of acute lymphoblastic leukemia (ALL) were studied under the scanning electron microscope (SEM). In 24 of the cases, the vast majority of circulating leukaemic cells had few microvilli. Villous cells were rarely encountered and prominent ridge-like profiles and ruffled membranes were not seen. Only six cases were studied by immunological techniques and four of the cases were of the null type while in two the cells bore detectable T-markers. It seems that ALL is almost always associated with the presence of cells with few microvilli in the peripheral circulation, differing in this respect from most cases of CLL. Although circulating leukaemic lymphocytes with few microvilli are sometimes seen in CLL, the most frequent cell type encountered is a more villous lymphocyte. Differences between leukaemic cells from patients with ALL, CLL and non-lymphoblastic leukaemias are discussed. It appears that SEM may help to distinguish lymphoblastic and nonlymphoblastic leukaemic cells in many instances and can be used as a useful adjunct to other modes of microscopy in the diagnosis of acute leukaemia.

Altered surface morphology of Concanavalin A transformed thymic lymphocytes as seen by scanning electron microscopy.

The present study records the surface architecture of normal and Concanavalin A transformed thymic lymphocytes as seen under the scanning electron microscope, employing different modes of cell preparation and fixation. Murine thymic lymphocytes have a relatively uniform surface architecture and display few microvilli, irrespective of the mode of fixation used in their preparation for SEM. When cells are incubated for 72 hours no gross changes in surface morphology are noted. After incubation with Concanavalin A for 72 hours the transformed cells display multiple microvilli and are easily distinguished from their relatively smooth normal non-transformed counterparts. The results are reviewed in the light of current knowledge on the surface architecture of lymphocytes and the factors influencing lymphocyte surface topography are discussed.