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Hypokalemia aldosterone

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https://www.readbyqxmd.com/read/28139270/an-unlikely-cause-of-hypokalemia
#1
Jason Hine, Ari Schwell, Norah Kairys
BACKGROUND: Hypokalemia is a common clinical disorder caused by a variety of different mechanisms. Although the most common causes are diuretic use and gastrointestinal losses, elevated cortisol levels can also cause hypokalemia through its effects on the renin-angiotensin-aldosterone system. Cushing's syndrome refers to this general state of hypercortisolemia, which often manifests with symptoms of generalized weakness, high blood pressure, diabetes mellitus, menstrual disorders, and psychiatric changes...
January 28, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28129247/effectiveness-of-patiromer-in-the-treatment-of-hyperkalemia-in-chronic-kidney-disease-patients-with-hypertension-on-diuretics
#2
Matthew R Weir, Martha R Mayo, Dahlia Garza, Susan A Arthur, Lance Berman, David Bushinsky, Daniel J Wilson, Murray Epstein
OBJECTIVE: Recurrent hyperkalemia frequently limits use of renin-angiotensin-aldosterone system inhibitors (RAASi) in chronic kidney disease (CKD) patients with hypertension, diabetes, and/or heart failure. Patiromer is a sodium-free, nonabsorbed potassium (K)-binding polymer approved by the US Food and Drug Administration for the treatment of hyperkalemia. This post-hoc analysis of OPAL-HK examined the effectiveness and safety of patiromer in reducing serum K in hyperkalemic CKD patients on RAASi, with hypertension, receiving diuretic therapy versus those not on diuretics...
February 15, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28129245/plasma-aldosterone-level-within-the-normal-range-is-less-associated-with-cardiovascular-and-cerebrovascular-risk-in-primary-aldosteronism
#3
Masahiko Murata, Tetsuhiro Kitamura, Daisuke Tamada, Kosuke Mukai, Shogo Kurebayashi, Tsunehiko Yamamoto, Kunihiko Hashimoto, Reiko D Hayashi, Haruhiko Kouhara, Sachi Takeiri, Yoshitaka Kajimoto, Makoto Nakao, Toshimitsu Hamasaki, Michio Otsuki, Iichiro Shimomura
BACKGROUND: Previous studies showed higher risk of cardiovascular and cerebrovascular (CCV) events in primary aldosteronism compared with essential hypertension, but the patients of these studies were limited to primary aldosteronism patients with high plasma aldosterone concentration (PAC). The introduction of the aldosterone-renin ratio as the screening test for primary aldosteronism led to the recognition of primary aldosteronism patients with normal PAC (nPA). However, there is no information on the risk of primary aldosteronism including nPA...
January 27, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28123500/effects-of-low-dose-tolvaptan-on-electrolyte-abnormality-and-hemodynamic-parameters-in-a-liver-cirrhosis-associated-portopulmonary-hypertension-patient-a-case-report
#4
Yoshito Ogihara, Norikazu Yamada, Kaoru Dohi, Akimasa Matsuda, Satoshi Ota, Ken Ishikura, Mashio Nakamura, Masaaki Ito
The present study reported a case of portopulmonary hypertension (POPH) that was secondary to underlying liver cirrhosis in a 58-year-old woman, who was successfully treated with low-dose tolvaptan. The patient had suffered from refractory peripheral edema and electrolyte abnormalities, including severe hypokalemia, under the combination therapy of sildenafil, ambrisentan, furosemide and spironolactone. Subsequent to the initiation of low-dose tolvaptan at 3.75 mg/day with concurrent de-escalation of the dose of furosemide, the daily urine volume increased, peripheral edema improved and the serum potassium level increased immediately...
January 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28101185/hypokalemic-myopathy-in-primary-aldosteronism-a-case-report
#5
Chuifen Wu, Jun Xin, Minghua Xin, Hai Zou, Lie Jing, Caoyong Zhu, Wenhui Lei
Primary aldosteronism (PA) is a rare disorder. The majority of patients with PA present with typical features and are easily diagnosed. This disorder is usually diagnosed with hypokalemia, hypertension or an adrenal mass. However, patients with atypical symptoms may present a challenge for diagnosis and treatment. In the present study, a case of PA is described that presented with hypokalemic myopathy simulating polymyositis. The patient was a 44-year-old woman who presented with weakness and difficulty walking...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28069910/primary-aldosteronism-not-just-about-potassium-and-blood-pressure
#6
T H Toh, C V Tong, H C Chong
No abstract text is available yet for this article.
January 9, 2017: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/28069722/novel-approach-to-establishing-an-aldosterone-renin-ratio-cutoff-for-primary-aldosteronism
#7
Alexander A Leung, Dennis J Orton, Alex Chin, Hossein Sadrzadeh, Gregory A Kline
Direct renin concentration is replacing plasma renin activity in many laboratories for the investigation of primary aldosteronism, which may have a significant impact on the resulting aldosterone:renin ratios. We sought to develop a population-based approach to establishing an aldosterone:renin ratio cutoff when transitioning between assays. A population-based study was performed in Calgary, Alberta, Canada of 4301 individuals who received testing from January 2012 to November 2015. In 2014, direct renin concentration replaced plasma renin activity in routine testing...
March 2017: Hypertension
https://www.readbyqxmd.com/read/28052988/potassium-sensing-by-renal-distal-tubules-requires-kir4-1
#8
Catherina A Cuevas, Xiao-Tong Su, Ming-Xiao Wang, Andrew S Terker, Dao-Hong Lin, James A McCormick, Chao-Ling Yang, David H Ellison, Wen-Hui Wang
The mammalian distal convoluted tubule (DCT) makes an important contribution to potassium homeostasis by modulating NaCl transport. The thiazide-sensitive Na(+)/Cl(-) cotransporter (NCC) is activated by low potassium intake and by hypokalemia. Coupled with suppression of aldosterone secretion, activation of NCC helps to retain potassium by increasing electroneutral NaCl reabsorption, therefore reducing Na(+)/K(+) exchange. Yet the mechanisms by which DCT cells sense plasma potassium concentration and transmit the information to the apical membrane are not clear...
January 4, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28050008/hypokalemic-paralysis-complicated-by-concurrent-hyperthyroidism-and-hyperaldosternoism-a-case-report
#9
Yu-Hsin Hsiao, Yu-Wei Fang, Jyh-Gang Leu, Ming-Hsein Tsai
BACKGROUND Thyrotoxic periodic paralysis (TPP) is commonly observed in patients with acute paralysis and hyperthyroidism. However, there is a possibility of secondary causes of hypokalemia in such a setting. CASE REPORT Herein, we present the case of a 38-year-old woman with untreated hypertension and hyperthyroidism. She presented with muscle weakness, nausea, vomiting, and diarrhea since one week. The initial diagnosis was TPP. However, biochemistry tests showed hypokalemia with metabolic alkalosis and renal potassium wasting...
January 4, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/27975056/is-laparoendoscopic-single-site-adrenalectomy-a-feasible-alternative-in-treating-aldosterone-producing-adenoma
#10
Che-Hsiung Wu, Leay-Kiaw Er, Ya-Hui Hu, Chia Da Lin, Shih-Chieh Chueh, Yao-Chou Tsai
Objective. To compare laparoendoscopic single-site (LESS) and conventional multiport adrenalectomy in patients with aldosterone-producing adenoma (APA). Material and Methods. We retrospectively reviewed patients who had been clinically confirmed with unilateral APA and who underwent LESS or multiport adrenalectomy between 2009 and 2014. Perioperative data were obtained for all patients. Blood pressure and the levels of serum aldosterone, renin, and potassium were checked periodically. Results. We identified 45 APA patients in the LESS group and 71 in the multiport group...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27957422/unmasked-chronic-renal-function-deterioration-after-unilateral-adrenalectomy-in-patients-with-primary-aldosteronism
#11
Su Min Park, Woo Jin Jung, Jong Man Park, Harin Rhee, Il Young Kim, Eun Young Seong, Dong Won Lee, Soo Bong Lee, Ihm Soo Kwak, Nari Shin, Sang Heon Song
We report 2 cases of chronic estimated glomerular filtration rate (eGFR) decline after unilateral adrenalectomy due to primary aldosteronism. The patients were diagnosed with unilateral adrenal cortical adenoma releasing aldosterone. Two patients were examined for hypertension and hypokalemia. Unilateral laparoscopic adrenalectomy was performed in both cases, and pathology confirmed adrenal cortical adenoma. After adrenalectomy, hypertension and hypokalemia improved to within normal range. However, the eGFR decreased postoperatively, and abdominal computed tomography scan showed decreased kidney size compared to previous images...
December 2016: Kidney Research and Clinical Practice
https://www.readbyqxmd.com/read/27900368/whole-exome-sequencing-reveals-an-inherited-r566x-mutation-of-the-epithelial-sodium-channel-%C3%AE-subunit-in-a-case-of-early-onset-phenotype-of-liddle-syndrome
#12
Linda M Polfus, Eric Boerwinkle, Richard A Gibbs, Ginger Metcalf, Donna Muzny, Narayanan Veeraraghavan, Megan Grove, Sanjay Shete, Stephanie Wallace, Dianna Milewicz, Neil Hanchard, James R Lupski, Syed Shahrukh Hashmi, Monesha Gupta-Malhotra
To comprehensively evaluate a European-American child with severe hypertension, whole-exome sequencing (WES) was performed on the child and parents, which identified causal variation of the proband's early-onset disease. The proband's hypertension was resistant to treatment, requiring a multiple drug regimen including amiloride, spironolactone, and hydrochlorothiazide. We suspected a monogenic form of hypertension because of the persistent hypokalemia with low plasma levels of renin and aldosterone. To address this, we focused on rare functional variants and indels, and performed gene-based tests incorporating linkage scores and allele frequency and filtered on deleterious functional mutations...
November 2016: Cold Spring Harbor Molecular Case Studies
https://www.readbyqxmd.com/read/27865304/brain-natriuretic-peptide-counteracting-the-renin-angiotensin-aldosterone-system-in-accelerated-malignant-hypertension
#13
Hitoshi Nakagawa, Yuji Mizuno, Eisaku Harada, Yoshinobu Morikawa, Koichiro Kuwahara, Yoshihiko Saito, Hirofumi Yasue
We describe 2 patients, a 52-year-old woman and a 57-year-old man, with rapidly progressive hypertension and marked elevation of brain natriuretic peptide who exhibited polyuria, natriuresis, hypokalemia, posterior reversible encephalopathy syndrome and left ventricular dysfunction together with retinopathy and nephropathy, which were attenuated in a short time span of 1-2 months with normalization of blood pressure after the antihypertensive treatment. The possible role of brain natriuretic peptide in the pathophysiology of accelerated malignant hypertension was discussed and a review of the literature was completed...
November 2016: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/27812391/use-of-aldosterone-antagonist-to-treat-diarrhea-and-hypokalemia-of-ogilvie-s-syndrome
#14
Pradhum Ram, Abhinav Goyal, Marvin Lu, Joshua Sloan, William McElhaugh
Ogilvie's syndrome (OS) is a functional obstruction of the bowel due to an autonomic imbalance. It often presents with diarrhea and is associated with hypokalemia. We present a case of a 70-year-old male who developed severe abdominal distension, watery diarrhea, and persistent hypokalemia status after left hip arthroplasty after suffering from a femoral neck fracture due to a fall and was diagnosed with OS. The persistent hypokalemia was slow to improve despite aggressive repletion because of the high potassium losses in the stool...
2016: Case Reports in Gastrointestinal Medicine
https://www.readbyqxmd.com/read/27771983/potassium-supplementation-and-long-term-outcomes-in-chronic-peritoneal-dialysis-patients-with-end-stage-renal-disease-a-propensity-score-matching-study
#15
Yun-Fang Zhang, Qi Wang, Yan-Yan Su, Shen Yang, Jian Guo, Jie Luo, Jia-Min Tang, Hong-Yan Li
OBJECTIVE: In this retrospective matched-cohort study, the association between potassium supplementation and long-term outcomes was determined. METHODS: Chronic peritoneal dialysis (PD) patients, aged ≥ 16 years, being referred to four PD centers in China, with serum potassium levels ≤ 3.5 mEq/L on three consecutive monthly in Q4 2008 and without receiving oral potassium supplementation in the prior three months were included in this study. Patients were divided into two groups, either to receive (test group) or not (control group) oral potassium supplementation in both Q4 2008 and the subsequent follow-up period, until 31 December 2014...
November 2016: Renal Failure
https://www.readbyqxmd.com/read/27754198/js-ish-eccr-3-a-novel-algorithm-for-the-case-detection-of-the-most-common-form-of-endocrine-hypertension
#16
Gian Paolo Rossi
Primary aldosteronism (PA) involves more than 11% of patients referred to specialized hypertension centers and, therefore, is much more common than commonly held. Moreover, it causes a damage to the heart, blood vessels and kidneys, which translates into a high rate of cardiovascular events, in excess to the degree of blood pressure raise. Along with the notion that a timely diagnosis entails a fundamental step for the choice of an appropriate therapy, which can correct the arterial hypertension and the hypokalemia, this justifies efforts to search for PA in the majority of the patients with hypertension...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27754112/os-22-08-prevalence-of-primary-aldosteronism-and-its-cardio-metabolic-factors-chinese-hypertensive-patients-in-xinjiang-of-china
#17
Nanfang Li, Xiaoguang Yao, Ling Zhou, Suofeiya Abulikem, Delian Zhang, Guijuan Chang, Keming Zhou
OBJECTIVE: To investigated the prevalence of primary aldosteronism (PA) and compare the pattern of PA patients with essential hypertension regarding clinical data in general hypertensive patients in Xinjiang of China. DESIGN AND METHOD: Consecutive hypertensive patients referred to Hypertension Center of Xinjiang from 2009 to 2011 underwent a diagnostic protocol composed of measurement of Na and K in serum and 24-h urine, sitting plasma renin activity, and aldosterone at baseline and after saline loading test...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27754081/os-19-04-chronic-diuretic-therapy-does-not-impair-the-effectiveness-of-patiromer-in-hyperkalemic-patients-with-ckd
#18
Matthew Weir, Martha Mayo, Dahlia Garza, Susan Arthur, Lance Berman, David Bushinsky, Daniel Wilson, Murray Epstein
OBJECTIVE: Diuretics, alone or in combination, are frequently prescribed in chronic kidney disease (CKD) and heart failure (HF) patients to reduce volume, blood pressure, and/or for symptom control. Clinicians may also use them to reduce the risk of hyperkalemia, but high doses of diuretics may lead to adverse events from intravascular volume depletion or gout. Patiromer is a non-absorbed K-binding polymer recently approved by the FDA for the treatment of hyperkalemia (HK). We compared patiromer's effects in RAASi-treated CKD patients with HK on different types of diuretics to patients not receiving diuretics in the treatment phase of OPAL-HK...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27753808/ssa-03-3-dietary-salt-intake-and-hypertension-in-singapore
#19
Vernon Min Sen Oh
According to the Singapore National Health Survey (NHS) of 2010, the population of the Republic of Singapore was 5.076,700, comprising four ethnic groups: Chinese (74.1%), Malays (13.4%), Indians (9.2%), and others (3.3%). The National Health Survey for 2016 is under way and due to be published in 2017. From the six-yearly national health surveys, the crude prevalence of clinical hypertension (HTn), defined as a sustained blood pressure ≥ 140/90 mmHg, in Singaporean residents aged 30 to 69 years rose from 22...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27669369/evaluation-of-insulin-sensitivity-and-secretion-in-primary-aldosteronism
#20
Daisuke Watanabe, Midori Yatabe, Atsuhiro Ichihara
In primary aldosteronism (PA), insulin response to glucose is not fully understood. Insulin action was elucidated using indices in 32 PA and 21 essential hypertension (EH) patients. These patients were evaluated using homeostasis model assessment (HOMA) indices, quantitative insulin sensitivity check index (QUICKI), and insulinogenic index (IGI), which were expressed for insulin sensitivity/secretion and the early phase of insulin secretion. Insulin sensitivity and early phase of insulin secretion were decreased in PA, and there was a negative correlation between serum potassium concentration and insulin sensitivity indices...
2016: Clinical and Experimental Hypertension: CHE
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