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Biomedical subjects

S Penchas

Publications and source records attributed to S Penchas.

At least 19 recordsLinked to original sources
PubMed1997

Quantity in health care is not always a substitute for quality.

Examines the outcomes of attempts to improve health services in the former Communist countries of Eastern Europe and in the West European democracies. Discovers that while the East Europeans focused their efforts on increasing the numbers of doctors and beds per patient, while keeping to relatively low levels of investment in technological advances, West European countries have taken the opposite approach, emphasizing quality of care, particularly advanced care, reducing the numbers of physicians and hospital beds, acquiring advanced technological systems for diagnosis and treatment and spending ten times as much per patient as in Eastern Europe. Concludes that the West European approach has led to far better results.

Communism↗
PubMed1995

Redesigning a national healthcare system: the Israeli experience.

In 1988 the Government of Israel appointed a Commission of Inquiry (of which the authors were members) to examine the state of its health-care services. Although relating to Israel, some of the problems contributing to the crisis in the health services are shared by other industrialized nations. In 1991 the findings and recommendations of the Commission were adopted by the Government. They related to the major problem areas analysed by the Commission: poor standard of service to the public; health ministry structure and performance; funding and budgeting; poor labour relations in the public health sector; surplus of physicians; mix of public and private health care; shortage of qualified health-care managers. The main recommendations adopted were: legislation for compulsory health insurance (due to be effective on 1 January 1995), establishing a National Health Authority, running of hospitals by autonomous corporations and reform in salary structure.

Budgets↗
PubMed1993

Home care therapy for respirator-dependent patients.

Our experience with 13 patients suffering from various ventilatory disorders who received mechanical ventilation at home for periods between 1 and 12 years is presented. Seven of the 13 patients were ventilated by positive pressure via tracheostomy, 3 by negative body ventilators and 3 by exufflation belt and positive pressure. Only a few hospitalizations were required due to pulmonary complications, and there was no case of sudden death occurring at home. Costs of home care for respirator-dependent patients, including the initial investment of home equipment, are much lower than the costs of long-term hospital care. A comprehensive home care program should be the preferred choice for medically stable ventilator-dependent patients.

Adolescent↗
PubMed1991

Technique for cellular microsurgery using the 193-nm excimer laser.

A new cell surgery technique has been developed to produce well-defined alterations in cells and tissue without detectable heating and/or other structural damage in the surroundings. The technique involves the use of an argon fluoride excimer laser, in the deep ultraviolet (UV) region of the spectrum at 193 nm, which is guided through a glass pipette filled with a positive air pressure. To demonstrate the method, holes were drilled in the zona pellucida of mouse oocytes. The diameter of the drilled hole was determined by the pipette tip size, and its depth by an energy emitted per pulse and number of pulses. Scanning electron microscopy of the drilled mouse oocytes showed uniform, round, well-circumscribed holes with sharp edges. Oocytes that had their zona pellucida drilled with this new method fertilized in vitro and developed to the blastocyst stage in a rate similar to that of control group. These results demonstrate the nonperturbing nature of this cold laser microsurgical procedure. In addition to the extension of our results for clinical in vitro fertilization purposes, such as enhancement of fertilization and embryo biopsy, there are wide-ranging possible uses of our method in fundamental and applied investigations that require submicron accuracy in cellular alteration.

Animals↗
PubMed1991

Alternative methods of hospital remuneration in Israel.

The current method of remunerating hospitals by an average per diem fee tends to over-reimburse hospitals that have a concentration of departments whose true costs are less than the average price received. Hospitals with a high concentration of expensive high-technology service departments whose true costs are more than the average price received will be under-reimbursed and are obliged to cover their running deficits by other means, e.g., donations. Reimbursements on a per diem basis provide a 'perverse incentive' for all hospitals to maximize the length of patient stays in order to maximize their income. This paper briefly examines alternative methods to the deficient per diem method of reimbursing hospitals, such as fee for service, historical budgeting, capitation, gatekeeper's fees and diagnosis-related groups (DRGs). Fee for service or historical budgeting shows little or no advantage over the present system. However, a combination of capitation and/or DRG linked with some form of payment via physician gatekeepers appears to provide a favorable option for correcting the distortions of the per diem system. Department-specific DRG weights for each hospital's department admission mix are used to estimate the magnitude of the current distortion in resources allocated to hospitals. The calculation is based on the changes in hospital income were a DRG mechanism introduced instead of a per diem method. Such changes would increase the hospitalization income of hospitals with low lengths of stay and high bed turnover rates up to 39%. Regional hospital centers with high lengths of stays and low bed turnover rates would receive as much as 17% lower income in some cases. Only if DRG weights were available for each individual hospital would it be possible to ascertain whether differences in lengths of stay reflect differing severities of case loads or differing hospital efficiency levels.

Capitation Fee↗
PubMed1990

The choice between splenectomy and medical treatment in patients with advanced agnogenic myeloid metaplasia.

The objective of the study was to explore the risks and benefits of splenectomy in advanced agnogenic myeloid metaplasia (AMM). We searched the literature (Medline, 1970-1987) for studies of postoperative survival, operative mortality and effects of splenectomy on painful splenomegaly, and portal hypertension or transfusion requirements in patients with AMM. We employed formal decision analysis to determine the relative value of medical and surgical treatment of advanced AMM. Results of data synthesis showed that splenectomy in AMM is associated with an operative mortality of 13.4% (95% confidence intervals (CI): 9.5-17.2%), an early morbidity of 45.3% (CI: 39.6-51.1%), and a late morbidity of 16.3% (CI: 9.9-22.5%). Almost all patients with portal hypertension and painful splenomegaly, but only about half of those with thrombopenia and anemia were reported to have experienced relief in their symptoms or signs after splenectomy. We found no evidence that splenectomy affects survival in AMM. We concluded that splenectomy in advanced AMM is a palliative procedure that carries a substantial risk. It may be considered for symptomatic patients after they have been informed about the operative mortality, morbidity, and chances of palliation. Decisions about treatment of advanced AMM should be guided predominantly by the patient's preferences.

Blood Transfusion↗
PubMed1990

Israel's expenditure on health services.

In 1986, the State of Israel utilized 7.6% of its gross national product (GNP) for health care. At first glance this seems to be a reasonable level of expenditure when compared with the percentage of GNP devoted to health care in eight selected industrialized non-communist nations. However, Israel devoted fewer dollars per citizen on health care than any of the eight other nations. We investigate the role of three factors that contributed to this relatively low expenditure level: a) health personnel and bed supply levels, b) operations and procedure rates, and c) relative wage costs of health personnel. If Israel had the same level of per capita GNP as the USA, its annual health service per capita expenditure would increase from $472 to $1,328. If, in addition, its health personnel received the same wage differentials (in relation to the average wage levels) as those received by health personnel in the USA, it is estimated that Israel would spend around $1,842 annually per capita on health care (representing 10.7% of its GNP). This figure is only $98 less than what the USA spends, and creates a vastly different impression concerning the efficiency of the health system than does the original unadjusted expenditure of only $472 per head, which is $1,468 less than that spent by the USA. The Israeli health system can be said to be characterized by adequate manpower inputs, high bed occupancy rates, low surgery rates relative to the USA (not necessarily a negative phenomenon), and low relative wage inputs. The relatively limited available output indicators lead us to believe that productivity per person employed in the health services could be raised. The low absolute levels of health expenditures in Israel are mainly due to a combination of a low GNP per head and relatively low wage differentials between health service staff and other income earners.

Bed Occupancy↗