AIM: To determine whether Jiunaoning injection has protective effects on oxygen/glucose-deprived and reperfusion injury-induced neurons. METHODS: Various concentrations of Jiunaoning injection (0.5-5 mL/L) were used to observe their effects on cultured rat cortical neurons induced by oxygen/glucose-deprived and reperfusion injury in various time points. The neuronal metabolic rate and viability were assessed by using 3-(4,5-dimethylthiazol)-2, 5-diphenyl-tetra zoliumbromide (MTT) and lactate dehydrogenase (LDH) assay. RESULTS: Jiunaoning injection enhanced the neuronal metabolic rate in a dose-dependent manner in the range from 0.5 to 5 mL/L, and Jiunaoning injection (1.5-2.5 mL/L) enhanced the neuronal metabolic rate, decreased the cell death rate and depressed LDH leak rate significantly. CONCLUSION: Jiunaoning injection has an affirmative protective effect on oxygen/glucose-deprived and reperfusion-induced neuronal injury.

The complexity of coding surgical procedures related to renal replacement therapy in nephrology stems from a deficiency in clinical knowledge regarding renal replacement therapies and an incomplete understanding of the classification rules within the ICD-9-CM-3 coding system.This paper delves into the clinical aspects of renal replacement therapy and organizes the corresponding coding classification rules,clarifying the codes for various treatment modalities.For instance,the establishment of dialysis access is coded as 38.95 for hemodialysis venous intubation,39.27 for vascular fistula,and 54.93 for peritoneal dialysis intubation via a cutaneous peritoneal stoma.Maintenance hemodialysis is coded as 39.95,while peritoneal dialysis is coded as 54.98.The removal of dialysis catheter is differentiated into surgical and non-surgical;surgical removal is coded as 86.05,and non-surgical removal as 97.86 or 97.89.For instances of internal fistula stenosis or thrombosis,balloon dilation is coded as 39.50.Stent implantation for stenosis or isolation of a false aneurysm is coded as 39.90 for bare stent,and 00.55 for covered stents.The resection and reconstruction involving stenosis,thrombus segments,or false aneurysms,are coded as 39.42.This classification aims to improve the accuracy of coding for such procedures.

Objective By analyzing the main diagnostic choices of inpatient records in obstetrics and the problems exist-ing in ICD codes,we can improve the quality of the main diagnostic choices and coding in obstetrics.Methods A total of 205 obstetric inpatient medical records were randomly selected from a hospital from January 1 to April 30,2024,and the medical re-cords were checked jointly by three senior coders,and the errors were summarized and analyzed by using the check table.Results Among 205 obstetrical medical records,72(35.12％)were found to have errors in the selection and coding of major diagnoses;among them,there were 55 cases of incorrect selection by clinician and incorrect compilation by coders,13 cases of correct selection by clinician,incorrect compilation or omission by coders,4 cases of omission by clinician and omission by cod-ers.Conclusion The selection and coding of the main diagnosis in obstetrics are very special and difficult,so the training of cli-nicians should be strengthened,the writing of clinicians should be standardized,and the importance of the main diagnosis selec-tion should be strengthened.At the same time,strengthen the management of coders,standardize the coding operation process,strengthen the learning of professional knowledge,improve professional reserves,strengthen the two-way communication with cli-nicians,and jointly improve the main diagnosis selection and coding accuracy rate of obstetrics,so as to ensure the quality of data on the first page of obstetric inpatient medical records.