{"title":"Integrating Blood Pressure Control With Multi-Class Kidney Protective Agents in Diabetic Kidney Disease.","authors":"Hyoungnae Kim","doi":"10.5049/EBP.2026.24.e6","DOIUrl":"10.5049/EBP.2026.24.e6","url":null,"abstract":"<p><p>Diabetic kidney disease (DKD) remains a leading cause of chronic kidney disease progression and cardiovascular morbidity and mortality. Blood pressure (BP) control is a cornerstone of risk reduction in DKD, yet its management has become increasingly complex with the emergence of multi-class kidney-protective agents. Traditionally centered on renin-angiotensin-aldosterone system (RAAS) blockade with additional antihypertensive agents, contemporary treatment now incorporates sodium-glucose cotransporter-2 (SGLT2) inhibitors, non-steroidal mineralocorticoid receptor antagonists, and incretin-based therapies. Recent trials evaluating intensive systolic BP targets have demonstrated cardiovascular benefit in selected high-risk populations; however, the balance between benefit and kidney-related harm remains relevant in DKD. While RAAS blockade provides meaningful BP reduction and renoprotection, SGLT2 inhibitors, finerenone, and incretin-based therapies confer modest but clinically relevant BP lowering alongside substantial cardiorenal benefits through complementary mechanisms. Although these agents are not primarily used for antihypertensive intensification, their meaningful BP-lowering effects can influence overall BP control in routine practice. Although combination therapy appears biologically plausible and may enhance overall cardio-kidney-metabolic protection, definitive evidence supporting optimal sequencing, parallel initiation, or superiority in hard clinical outcomes remains limited. A pragmatic, individualized approach integrating disease-modifying therapies with conventional antihypertensive agents is therefore warranted. Future dedicated trials are needed to clarify optimal integration strategies to achieve safe BP control while maximizing long-term kidney and cardiovascular protection in DKD.</p>","PeriodicalId":35352,"journal":{"name":"Electrolyte and Blood Pressure","volume":"24 2","pages":"95-105"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13338641/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148406151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yongjin Yi, Seon Ha Baek, Jeonghwan Lee, Sejoong Kim
{"title":"Patient and Clinician Perspectives on Hyperkalemia Management Under Cardio-Kidney-Protective Therapy: A Three-Stakeholder Cross-Sectional Survey.","authors":"Yongjin Yi, Seon Ha Baek, Jeonghwan Lee, Sejoong Kim","doi":"10.5049/EBP.2026.24.e9","DOIUrl":"10.5049/EBP.2026.24.e9","url":null,"abstract":"<p><strong>Background: </strong>Maintaining renin-angiotensin system inhibitor (RASi) and mineralocorticoid receptor antagonist (MRA) therapy in patients with hyperkalemia is now favored by contemporary guidelines, yet the perspectives of patients and clinicians on this shift have rarely been examined in parallel.</p><p><strong>Methods: </strong>We conducted three parallel descriptive cross-sectional surveys in Korea between April and May 2026: a patient survey distributed through a kidney-disease patient community; a nephrologist survey; and a multispecialty physician survey. Patients, nephrology specialists, and multispecialty physicians were analyzed separately and in a combined nephrologist-versus-non-nephrologist comparison.</p><p><strong>Results: </strong>A total of 125 patients, 82 nephrologists, and 255 multispecialty physicians completed the survey. Patient awareness of hyperkalemia was high (perceived risk, 3.97; 95% confidence interval, 3.84-4.10). More patients preferred potassium-lowering medication (68.8%) over strict dietary control (31.2%) for hyperkalemia management. Clinicians rated maintenance of RASi and MRA as 3.81 (3.72-3.90) and 3.47 (3.37-3.56), respectively; nephrologists rated maintenance as more important than non-nephrologists for both classes (p <i><</i> 0.001 for RASi, p = 0.006 for MRA). For long-term outpatient hyperkalemia, nephrologists most often endorsed prescribing a potassium binder (68.2%), while non-nephrologists most often endorsed reducing or discontinuing the culprit drugs (55.5%).</p><p><strong>Conclusion: </strong>Patients preferred to maintain cardio-kidney-protective therapy. A specialty gap in this preference was observed between nephrologists and non-nephrology clinicians, indicating a need to broaden clinician awareness of the full spectrum of hyperkalemia management options, including the more active use of potassium-lowering agents.</p>","PeriodicalId":35352,"journal":{"name":"Electrolyte and Blood Pressure","volume":"24 2","pages":"129-145"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13338643/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148406099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jinah Jung, Sonia Juarez, Eun Sil Koh, Sungjin Chung
{"title":"Advances in Hyperkalemia Management and the Emerging Role of Sodium Zirconium Cyclosilicate.","authors":"Jinah Jung, Sonia Juarez, Eun Sil Koh, Sungjin Chung","doi":"10.5049/EBP.2026.24.e3","DOIUrl":"10.5049/EBP.2026.24.e3","url":null,"abstract":"<p><p>Hyperkalemia is a common and potentially life-threatening complication in patients with chronic kidney disease and heart failure. It also represents a major barrier to the optimal use of renin-angiotensin-aldosterone system inhibitors (RAASi), which are central to improving cardiorenal outcomes. Contemporary guidance, including the 2025 Korean Society of Nephrology Practical Recommendations for the Management of Hypertensive Kidney Disease, emphasizes the maintenance of normokalemia as a key strategy for enabling continuation and optimization of RAASi therapy. Sodium zirconium cyclosilicate (SZC) supports this therapeutic paradigm by enabling rapid potassium reduction and sustained potassium control. This review repositions hyperkalemia as a modifiable barrier to guideline-directed therapy and summarizes the pharmacology, clinical evidence, and practical considerations related to SZC use in patients at high cardiorenal risk.</p>","PeriodicalId":35352,"journal":{"name":"Electrolyte and Blood Pressure","volume":"24 1","pages":"73-80"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13053951/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147639715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jeonghwan Lee, Donghyuk Kang, Jin Hyuk Paek, Jangwook Lee, Jung Nam An, Junseok Jeon, Kyungho Lee, Hye Ryoun Jang, Jong Hyun Jhee, Hyo Jin Kim, Harin Rhee, Sung Yoon Lim, Jihyun Yang, Seong Geun Kim, Seung Seok Han, Shin Young Ahn, Sunghoon Park, Hyun Kyung Lee, Heeyeon Cho, Yeonhee Lee, Hyung Woo Kim, Keonhwa Kim, Miyoung Choi, Sejoong Kim
{"title":"Korean Society of Nephrology 2025 Evidence-Based Clinical Practice Guideline for Continuous Kidney Replacement Therapy.","authors":"Jeonghwan Lee, Donghyuk Kang, Jin Hyuk Paek, Jangwook Lee, Jung Nam An, Junseok Jeon, Kyungho Lee, Hye Ryoun Jang, Jong Hyun Jhee, Hyo Jin Kim, Harin Rhee, Sung Yoon Lim, Jihyun Yang, Seong Geun Kim, Seung Seok Han, Shin Young Ahn, Sunghoon Park, Hyun Kyung Lee, Heeyeon Cho, Yeonhee Lee, Hyung Woo Kim, Keonhwa Kim, Miyoung Choi, Sejoong Kim","doi":"10.5049/EBP.2026.24.e1","DOIUrl":"10.5049/EBP.2026.24.e1","url":null,"abstract":"<p><p>The Korean Society of Critical Care Nephrology, in collaboration with the Korean Society of Nephrology, has published a clinical practice guideline for continuous kidney replacement therapy (CKRT). This guideline was developed with the goal of improving patient outcomes and reducing complications, based on the latest research related to the application and prescription of CKRT. The development of this guideline involved multidisciplinary participation from leading experts in nephrology and critical care medicine, with methodological support for the guideline development process. This clinical practice guideline consists of recommendations addressing 17 key questions related to the initiation of CKRT, dose, modality, dialysate, ultrafiltration, anticoagulation, application in special situations, and multidisciplinary care. Each recommendation begins with a statement graded by the strength of the recommendation and the quality of the supporting evidence, followed by a rationale that supports the recommendation. We hope that this clinical practice guideline will offer practical guidance in clinical settings and contribute to the improvement of patient outcomes.</p>","PeriodicalId":35352,"journal":{"name":"Electrolyte and Blood Pressure","volume":"24 1","pages":"6-72"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13054007/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147639775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mechanism of Sodium-Glucose Cotransporter-2 Inhibitors for Uricosuria.","authors":"Eunjin Bae","doi":"10.5049/EBP.2025.23.e5","DOIUrl":"10.5049/EBP.2025.23.e5","url":null,"abstract":"<p><p>Clinical trials have found that sodium-glucose cotransporter-2 (SGLT2) inhibitors reduce serum urate levels by 0.6-1.5 mg/dL, which might contribute to cardiovascular protection. Urate is the final degradation product of purine nucleotides in humans who lack uricase, unlike most mammals. Thus, the processes of urate handling differ. This review aims to address the handling of urate in humans and the mechanisms through which SGLT2 inhibitors reduce serum urate levels. The kidneys and intestines are respectively responsible for excreting 70% and 30% of urate in humans. Medications that inhibit urate excretion, as well as increased purine intake or production, can cause hyperuricemia and decrease kidney function, which plays a key role in urate excretion. Hyperuricemia is significantly associated with gout, renal stones, mortality, and cardiovascular and chronic kidney diseases. SGLT2 inhibitors lower serum urate by inhibiting its reabsorption through urate anion exchanger 1 in apical membranes of renal proximal tubules and promoting urate excretion through ATP-binding cassette subfamily G member 2 (ABCG2) located in the apical membrane of the proximal tubule and ABCG2 in the intestinal membrane. Further mechanistic studies are needed to elucidate how SGLT2 inhibitors lower serum urate levels. Although the clinical benefits of SGLT2 inhibitors probably do not arise solely from urate reduction, they decrease serum urate levels, suggesting that they could serve as adjunctive therapy for patients with hyperuricemia.</p>","PeriodicalId":35352,"journal":{"name":"Electrolyte and Blood Pressure","volume":"23 2","pages":"23-30"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12802067/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145990418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sunmin Lee, Hee Won Seo, Jiwon Lee, Mi-Yeon Yu, Sang-Woong Han
{"title":"Unusual Presentation of Hyponatremia: Persistent Hiccups.","authors":"Sunmin Lee, Hee Won Seo, Jiwon Lee, Mi-Yeon Yu, Sang-Woong Han","doi":"10.5049/EBP.2025.23.e6","DOIUrl":"10.5049/EBP.2025.23.e6","url":null,"abstract":"<p><p>Hyponatremia is a common electrolyte disturbance with well-recognized neurological and gastrointestinal symptoms. However, it rarely presents with atypical manifestations, such as persistent hiccups. We report a case of a 36-year-old woman with necrotizing tonsillitis who developed persistent hiccups 3 days prior to hospitalization. Laboratory evaluation revealed severe hyponatremia (serum sodium [Na] 122.4 mEq/L), consistent with the syndrome of inappropriate antidiuretic hormone secretion (SIADH). Despite symptomatic treatment, hiccups persisted until serum Na levels were gradually corrected with hypertonic saline and fluid restriction. Hiccups resolved with improved Na levels. This case underscores the importance of considering hyponatremia in the differential diagnosis of persistent hiccups and highlights SIADH as a potential underlying cause.</p>","PeriodicalId":35352,"journal":{"name":"Electrolyte and Blood Pressure","volume":"23 2","pages":"43-48"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12802022/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145990976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Relationship Between Cardiac Autonomic Control and Intradialytic Hypotension in Senegalese Chronic Hemodialysis Patients: A Single Center Prospective Study.","authors":"Ibrahima Lyra Sarr, Abdou Khadir Sow, Baratou Coundoul, Babacar Mbodj, Sidy Mohamed Seck","doi":"10.5049/EBP.2025.23.e4","DOIUrl":"10.5049/EBP.2025.23.e4","url":null,"abstract":"<p><strong>Background: </strong>Intradialytic hypotension (IDH) increases cardiovascular morbidity and mortality in chronic hemodialysis patients and cardiac autonomous neuropathy (CAN) might be involved. To assess cardiac autonomic control in hemodialysis patients and describe its relationship with IDH.</p><p><strong>Methods: </strong>We conducted a prospective study at Ouakam Military Hospital in Senegal from January 1st to March 31st, 2023. Fifty-two patients (31 men, mean age 47.54 years) were included and had 3 measurements of heart rate variability (HRV): before, during and after an index hemodialysis session. They were classified according to changes in systolic blood pressure (SBP) during hemodialysis into three groups: 14 patients in group I (increase > 10 mmHg in mean intradialytic SBP), 13 in group II (decrease ≥ 20 mmHg in mean intradialytic SBP or MAP > 10 mmHg) and 25 in group III (others). HRV frequency domain indices between groups were compared.</p><p><strong>Results: </strong>In pre-dialysis, patients in group II showed higher values in total power (650.30 vs. 94.94 and 108.11 ms<sup>2</sup>, p = 0.02), high frequency (199.24 vs. 25.05 and 25.90 ms<sup>2</sup>, p = 0.03) and low frequency (225.36 vs. 42.30 and 53.76 ms<sup>2</sup>, p = 0.01) compared to those in groups I and III. Also, they presented less severe CAN (16.2% vs. 57.2% and 56%, p = 0.03). Measures after dialysis found no difference in HRV parameters among the three groups.</p><p><strong>Conclusion: </strong>Our results found that HRV was similar between patients with and without IDH suggesting the influence of other risk factors that need to be explored in further studies.</p>","PeriodicalId":35352,"journal":{"name":"Electrolyte and Blood Pressure","volume":"23 2","pages":"31-42"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12802086/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145991014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sang Heon Suh, Su Hyun Song, Hong Sang Choi, Chang Seong Kim, Eun Hui Bae, Soo Wan Kim, Seong Kwon Ma
{"title":"A Case of Cystinuria With Compound Heterozygous Mutations Both in <i>SLC3A1</i> and <i>SLC7A9</i> Genes.","authors":"Sang Heon Suh, Su Hyun Song, Hong Sang Choi, Chang Seong Kim, Eun Hui Bae, Soo Wan Kim, Seong Kwon Ma","doi":"10.5049/EBP.2025.23.e2","DOIUrl":"10.5049/EBP.2025.23.e2","url":null,"abstract":"<p><p>Cystinuria is an autosomal recessively inherited genetic disorder, and is typically classified into type A, caused by mutations in <i>SLC3A1</i>, or type B, caused by mutations in <i>SLC7A9</i>. While the predominance of the genotypes varies among countries, due to lack of a large scale cohort, the characterization of mutations in <i>SLC3A1</i> or <i>SLC7A9</i> is still limited in East Asia. A 61-year-old male patient admitted to the department of nephrology, with a chief complaint of fever, chillness and left flank pain for a week. The patient had a past history of recurrent urolithiasis, with a frequency of at least 1 to 2 times a year. Computed tomography visualized 1 cm-sized stone at distal ureter, which was removed by retrograde ureteroscopy. The stone analysis documented 100% of cystine, indicating an underlying genetic disorder, cystinuria. Whole genome sequencing from peripheral blood unveiled 3 heterozygous missense mutations in coding exons of <i>SLC3A1</i> gene, and 2 heterozygous missense mutations in coding exons of <i>SLC7A9</i> gene. We here report a case of cystinuria with compound heterozygous mutations both in <i>SLC3A1</i> and <i>SLC7A9</i> genes, with a total of 5 mutant alleles in a patient.</p>","PeriodicalId":35352,"journal":{"name":"Electrolyte and Blood Pressure","volume":"23 1","pages":"17-21"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12230274/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144592483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hongran Moon, Sohyun Bae, Donghwan Yun, Hyung-Kwan Kim, Sung Uk Kwon, Min Su Hyon, Seung Seok Han
{"title":"Renal Safety of Telminuvo, a Single Pill Combination of Telmisartan and S-amlodipine, in Korean Hypertensive Patients: A Multicenter, Retrospective Cohort Study.","authors":"Hongran Moon, Sohyun Bae, Donghwan Yun, Hyung-Kwan Kim, Sung Uk Kwon, Min Su Hyon, Seung Seok Han","doi":"10.5049/EBP.2025.23.e1","DOIUrl":"10.5049/EBP.2025.23.e1","url":null,"abstract":"<p><strong>Background: </strong>Effective blood pressure (BP) control is vital for preventing target organ damage, and combination therapy offers added benefits when single-agent treatment is insufficient. This cohort study examined whether Telminuvo, a single-pill combination of telmisartan and S-amlodipine, effectively maintains kidney function as a target organ in a large cohort of Korean patients.</p><p><strong>Methods: </strong>A total of 4,934 patients from 30 hospitals were treated with Telminuvo for over six months, with BP, estimated glomerular filtration rate (eGFR), electrolyte levels, and adverse events monitored throughout the study period.</p><p><strong>Results: </strong>Among the participants, 1,463 (29.7%) used Telminuvo for less than 1 year, while the remainder used it for longer. At baseline, the systolic and diastolic BP averaged 140.2 ± 18.4 mmHg and 82.1 ± 13.4 mmHg, respectively, which significantly decreased to approximately 130 and 75 mmHg after the initiation of treatment. The baseline eGFR of 79.3 mL/min/1.73 m<sup>2</sup> remained stable over three years, regardless of the initial eGFR levels. Within the first six months, acute kidney injury (defined as either a ≥ 0.3 mg/dL increase in serum creatinine or a ≥ 50% increase from baseline) occurred in 6.6% of patients, while hyperkalemia (defined as serum potassium levels > 5.5 mmol/L) was observed in 3.2% of patients.</p><p><strong>Conclusion: </strong>This cohort study demonstrates that Telminuvo effectively reduces blood pressure without compromising kidney function. Furthermore, the findings provide additional insights into drug-related adverse events, which will be valuable for clinicians in the real-world prescribing of Telminuvo.</p>","PeriodicalId":35352,"journal":{"name":"Electrolyte and Blood Pressure","volume":"23 1","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12230273/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144592485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}