A fuzzy expert system shell using both exact and inexact reasoning

Self-reported continuity and coordination of antenatal care and its association with obstetric near miss in Uasin Gishu county, Kenya

BACKGROUND

Continuity and coordination of care are core principles of high-quality primary health care. Optimising continuity and coordination improves maternal satisfaction. However, their association with morbidity and mortality outcomes is unclear. The obstetric near-miss approach can be used to investigate whether continuity and coordination influences the occurrence of a severe maternal outcome.

AIM

To compare self-reported continuity and coordination of care between obstetric near-miss survivors and those without near miss during pregnancy, delivery and postpartum.

SETTING

Uasin Gishu county, Rift Valley region, Kenya.

METHODS

A cross-sectional survey targeting 340 postnatal mothers. Continuity of care index (COCI) and modified continuity of care index (MCCI) were used to estimate longitudinal continuity. The Likert scale was administered to measure perceived continuity and coordination of care. Mann-Whitney U test and binomial logistic regression were used for hypothesis testing.

RESULTS

COCI and MCCI were lower among near-miss survivors (COCI = 0.80, p = 0.0026), (MCCI = 0.62, p = 0.034). Near-miss survivors scored lower on items assessing coordination between a higher-level provider and usual antenatal clinic (mean = 3.6, p = 0.006) and general coordination of care during pregnancy (mean = 3.9, p = 0.019). Presence of a non-life-threatening morbidity in pregnancy was associated with occurrence of near miss (aOR = 4.34, p = 0.001).

CONCLUSION

Near-miss survivors scored lower on longitudinal continuity and coordination of care across levels. Further research should focus on strengthening coordination, determining the optimal level of longitudinal continuity and improving systems for early identification and management of morbidities in pregnancy.Contribution: The results of this study show that while longitudinal and relational COC is important during the antenatal period, the presence of a non-life-threatening condition in pregnancy remains the most important predictor of the occurrence of a near miss.

An Exploratory Study of Person-Centered Care in a Large Urban Hemodialysis Program in Canada Using a Qualitative Case-Study Methodology

Background:

Person-centered care (PCC) can benefit patients, clinical staff, and health care organizations, but has not yet been widely adopted into practice. Hemodialysis is a unique care environment in which clinical staff can be involved with patients for protracted periods of time each week and often over a number of years. While kidney care is arguably more holistic than other chronic condition management programs, most patients requiring hemodialysis do not receive care that is optimally person-centered.

Objective:

The purpose of this research was to explore how care is experienced and provided in a large urban hemodialysis program in western Canada in relation to key principles of PCC. In addition, we wanted to understand what factors at an individual, unit, and organizational level facilitate or inhibit PCC in this environment.

Methods:

We used a qualitative case-study approach to explore multiple perspectives of care provision using a number of data sources including semi-structured interviews with patients, family members, clinical staff, and administrative staff, as well as observing patterns of clinical practice in local hemodialysis units.

Findings:

In our study of a single hemodialysis program, we found limited evidence of PCC. Overall, patients reported that their care was good and they had positive relationships with their care team. However, they did not feel involved in decisions regarding their care or consider it to be individualized. In general, providers acknowledged the potential benefits of PCC but were constrained in their practice by a number of factors, including individual perceptions of their role, a prescriptive care environment, and an organizational focus on managing demand.

Conclusions:

Evidence of PCC within hemodialysis services was limited, with a number of individual, unit level, and organizational barriers mitigating against its adoption and spread.

The recent development and evaluation of a medical expert system (ABVAB)

A medical expert system for the diagnosis of abnormal vaginal bleeding named as ABVAB had been reported. This paper will describe the recent development of ABVAB and its clinical evaluation. The overall testing results are quite satisfactory in spite of the limitations of time and small domain. This expert system, by using the fuzzy and certainty factor concepts, is able to handle imprecise and incomplete medical knowledge which has become informative. The paper also analyses the relative degrees of importance of the history and physical examination data in making a medical diagnosis.