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In 2009, China strengthened its public health service system. Since then, the country has made remarkable achievements in community-based chronic disease prevention and control; however, certain groups still have unmet needs. During 2019 to 2029, China will consolidate the top-level design of its medical health system. During this period, the coordination of department policies, improvement of service delivery mechanisms, building an integrated health service system, and other issues will be highlighted. This study will provide a basis for designing China's chronic disease prevention and control system during the next stage of development. We will consider the unmet needs of patients with chronic diseases as an indicator for remodeling the prediction system in combination with the elements and structural theories of complex health systems. In this article, we first introduce the definition and measurement methods of unmet needs. Second, we identify the existing unmet needs found among patients with chronic diseases with reference to the chronic disease prevention and control policies of China as well as current service items. Finally, we propose the design of community chronic disease service package for the next development stage based on unmet needs of patients with chronic diseases. We also provide suggestions for how to improve China's chronic care delivery system.

Background: Conventional hyperbaric spinal anaesthesia solution (SAS) with 8% glucose and low-dose bupivacaine may reduce the incidence of hypotension in caesarean section compared to standard doses, and marginally hyperbaric SAS (≤0.8% glucose) can induce a lower block level and a lower incidence of hypotension in nonobstetric patients than conventional 8% glucose SAS.Objective: The objective of this study was to evaluate the clinical efficacy of marginally hyperbaric low-dose bupivacaine solutions used for spinal anaesthesia during caesarean section.Design: A randomised, controlled clinical trial.Setting: Single medical centre.Patients: One hundred twenty women scheduled for elective caesarean section were randomised into four groups.Interventions: Caesarean section after combined spinal-epidural anaesthesia using hyperbaric preparations of low-dose SAS (7.2 mg bupivacaine and 2 μg 1.6 ml sufentanil in one of the following: 8%, 0.8%, 0.5% or 0.33% glucose solution.Main Outcome Measures: The dermatomal sensory block and degree of motor block of the lower extremities and adverse effects of anaesthesia were recorded.Results: The maximum cephalad sensory block level and the incidence of hypotension decreased as the density of SAS fell (T1, T2, T4 and T6, P < 0.001; 48.3, 30, 13.3 and 10.3%, P = 0.003). The incidence of shivering reduced with decreasing density of SAS (P < 0.05). There was no significant difference in the quality of anaesthesia (efficacy of motor block and sensory block) between the groups (P > 0.05).Conclusion: Compared with conventional 8% glucose hyperbaric SAS, marginally hyperbaric (0.5 or 0.33% glucose) low-dose bupivacaine solutions led to a significantly lower height of cephalad spread and incidence of hypotension with no impact on the efficacy of spinal anaesthesia for caesarean section. [ABSTRACT FROM AUTHOR]