A RETROSPECTIVE STUDY OF CORRELATION BETWEEN SERUM CREATININE, SERUM CALCIUM, SERUM INORGANIC PHOSPHORUS AND SERUM MAGNESIUM LEVELS IN PATIENTS ATTENDING NEPHROLOGY CLINICS IN TERTIARY CARE CENTER

Introduction: Chronic kidney disease (CKD) has been recognized as a leading public health problem worldwide. The global estimated prevalence of CKD is 13.4%. Kidney plays a critical role in regulating serum levels of Calcium, Magnesium and Phosphate. Calcium, phosphorus and magnesium homeostasis is altered in chronic kidney disease(CKD). Objective Objective: of the study is to establish the correlation of increase in serum creatinine levels with Calcium, Magnesium and Phosphate levels in patients. Design & Methods: This observational retrospective study included patients attending nephrology department in tertiary care centre for a period of two months. In total, 229 patients' data was accessed from the medical records. Patients were grouped in 5 groups based on serum Results: creatinine levels. Group I with serum creatinine levels of 0.5mg/dl to 0.8mg/dl, group II with serum creatinine levels of 0.8 to 1.1mg/dl, group III with serum creatinine levels of 1.1 to 3mg/dl, group IV with serum creatinine levels of 3 to 6mg/dl, group V with serum creatinine levels above 6mg/dl. Overall from group I to Group V , Serum Calcium showed negative and significant correlation, Serum phosphorus levels showed positive and significant correlation, Serum magnesium showed negative and insignificant correlation with serum creatinine. As Conclusions: serum creatinine increases, more patients show decline in serum calcium levels and serum magnesium levels and increase in serum inorganic phosphorus levels. Hypocalcemia, hypomagnesemia and hyperphosphatemia have been associated with increased risk of cardiovascular morbidity and mortality in cases of CKD. Hypomagnesemia has possible association with rapid decline in kidney function. Therefore, regular analysis of these parameters is important for predicting the prognosis of CKD and cardiovascular risk in cases of CKD.

Hypomagnesemia � An overlooked parameter in type 2 diabetes mellitus

Background: Diabetes Mellitus refers to a group of common metabolic disorders that share the phenotype of Hyperglycemia. It is the leading cause of morbidity and mortality throughout the world with an estimated worldwide prevalence of 439 million by 2030 and 19% of world抯 DM patients are Indians. Magnesium is an important co-factor for various enzymes involved in Insulin secretion and is involved in sodium-potassium ATPase pump. 25%-38% of Type 2 DM patients had Hypomagnesemia, which has also contributed in developing microvascular complications such as Diabetic Retinopathy (DR) and Diabetic Nephropathy (DN). Various studies have suggested that Magnesium supplementation in Type 2 DM patients with Hypomagnesemia have shown beneficial effects on insulin sensitivity and glucose metabolism. Aim and objectives: To study the prevalence of Hypomagnesemia in Type 2 DM patients and to study the association of Hypomagnesemia with microvascular complications such as DR and DN. Materials and methods: It is a hospital based Observational study carried out in 2022 for a period of 1 year including 60 patients fulfilling the ADA criteria for diagnosing T2DM and patients with Diabetic Retinopathy and Diabetic Nephropathy, and excluding patients with Malabsorption, Chronic diarrhoea, Renal Failure on diuretic therapy, Sepsis, Pancreatitis. Serum Magnesium levels of 1.6 mg/dl � 2.6 mg/dl is considered as normal range. Serum Magnesium were measured using Xylidyl blue colorimetric method. Results: The Mean age of the patients in our study was 55.89 years. Among 60 patients diagnosed with Diabetes Mellitus, 42 patients had Hypomagnesemia, 18 patients had Normomagnesemia (p- value: <0.0001). Patients with an HbA1c levels > 7% had Hypomagnesemia when to compared to patients with HbA1c <7% with a significant p value of 0.009. Hypomagnesemia was also associated with Diabetic Retinopathy and Diabetic Nephropathy with a significant p-value of 0.013 and 0.009 respectively. Conclusion: In our study, it has shown that patients with uncontrolled T2DM had Hypomagnesemia, which is also associated with micro-vascular complications of T2DM such as DR and DN.

Assessment of serum magnesium and correlation with glycemic control and complication in type 2 diabetes mellitus – A cross-sectional study in a tertiary care hospital in eastern zone of India

Background: Diabetes mellitus (DM) is an expanding global health problem. Type 2 DM (T2DM) patients account about 90% of total DM patients. Magnesium is important for different physiological mechanism. Hypomagnesemia is common in T2DM patient. Magnitude of hypomagnesemia is related with glycemic control and is associated with complications of T2DM. Aims and Objectives: Our aim of the study was to assess the prevalence of hypomagnesemia in patients of T2DM patients and to find their correlation with glycemic control and complications of T2DM patients in rural population of eastern zone of India. Materials and Methods: The hospital-based cross-sectional study includes 99 male and female DM patients between 15 and 60 years age. Fasting blood sugar, postprandial blood sugar, HbA1c, serum total magnesium, and urine albumin creatinine ratio were measured. Data were entered into Microsoft Excel spreadsheet and then analyzed by SPSS (version 25.0; SPSS Inc.) and GraphPad Prism (version 5.0). P < 0.05 was considered statistically significant. Results: From our study, we observed that hypomagnesemia is common in T2DM patients. The magnitude of hypomagnesemia is correlated with glycemic control (P < 0.0001). Moreover, hypomagnesemia is associated with diabetic kidney diseases (P < 0.05). Conclusion: It can be concluded that serum magnesium should be monitored in all T2DM patients and should be managed appropriately because hypomagnesemia may induce complications in T2DM patients.

Analysis of risk factors for hypomagnesemia in elderly patients with sepsis and the impact of hypomagnesemia on prognosis / 中华老年医学杂志

Objective:To explore the risk factors of hypomagnesemia in elderly patients with sepsis and the influence of hypomagnesemia on the prognosis of elderly patients with sepsis.Methods:In this retrospective study, 249 elderly patients with sepsis or septic shock were recruited between January 2018 and January 2021 from the Department of Geriatrics and the Department of Emergency Medicine, General Hospital of Tianjin Medical University, and relevant clinical data were collected.The Logistic regression analysis model was used to identify the relationship between risk factors and hypomagnesemia in patients with sepsis.The prognosis criteria such as hospitalization time in intensive care unit(ICU), 28-day mortality rate, mechanical ventilation time, double infection rate, shock reversal time, etc., were compared between the hypomagnesemia group and the normal magnesium group.Results:Among the 249 elderly patients with sepsis, 187 had normal blood magnesium, 43 had low blood magnesium and 19 had high blood magnesium, accounting for 75.10%, 17.27% and 7.63%, respectively.Compared with the normal blood magnesium group, elderly sepsis patients with hypomagnesemia had a longer hospitalization time in ICU[(16.21±3.68)d vs.(13.86±3.58)d, t=-4.845, P=0.036], and a significantly prolonged mechanical ventilation time[11(3, 18)d vs.3(1, 6)d, Z=-1.782, P=0.033]. There was no significant difference in mortality and double infection rate between the two groups(both P>0.05). The sequential organ failure assessment(SOFA)score of elderly sepsis patients in the low magnesium group was significantly higher than that in the normal magnesium group[(5.69±1.28)scores vs.(3.09±0.68)scores, t=-0.322, P=0.008], but there was no significant difference in acute physiology and chronic health evaluation(APACHE) Ⅱ score between the two groups( P>0.05). Multivariate Logistic regression analysis showed that high SOFA score( OR=1.111, 95% CI: 1.025-1.758, P=0.001)was an independent risk factor for hypomagnesemia. Conclusions:A high SOFA score is an independent risk factor for hypomagnesemia in elderly sepsis patients, and the clinical prognosis of elderly sepsis patients with hypomagnesemia is poor.

Prevalence of Hypomagnesaemia Among Type 2 Diabetic Patients Admitted to a Tertiary Care Hospital

Background: Magnesium (Mg) is one of the dominant intracellular cations. It catalyzes more than 300 intracellular reactions and has multiple functions in areas of energy production, intracellular calcium regulation, protein synthesis and degradation, and neurotransmitter release. To estimate the prevalence of hypomagnesaemia among patients with type 2 diabetes attending a tertiary care Hospital.Material & Methods:A cross-sectional study was carried out at the Bangladesh Institute of Research and Rehabilitation in Diabetes (BIRDEM), which treats patients with Diabetes Mellitus from all over the country. A total of 754 patients were included and analyzed in this study. All patients with type 2 diabetes who were referred to the BIRDEM during the period from the first of July 2020 to the end of June 2021 and had their serum Mg assessed were included in the study.Results:Out of 754 patients with type 2 diabetes, 150 patients (19.89%) (95% CI, 16.8%-21.4%) were hypomagnesaemic. Female gender, hypertension, statin therapy, HbA1c between 7-7.9% or ? 9% and patients with diabetes duration more than five years were independent risk factors for hypomagnesaemia. No association between hypomagnesaemia and age distribution, smoking history, neuropathy and retinopathy was found. In comparison with individuals enrolled in the National Vitamin D study, diabetic patients in this study had a much higher prevalence of hypomagnesaemia (19% vs. 0.7%) with odd’s ratio of 32 (95% CI, 21-48.2).Conclusions:The present study has shown that an apparently-healthy elderly population may have a magnesium deficiency that may need to be identified and treated for optimizing clinical care. Further multicentric studies with a greater sample size should be done in this field, which will benefit the elderly population.

A Study Of Electrolyte Abnormalities In Acute Exacerbation Of Chronic Obstructive Pulmonary Diseases

Background:Chronic obstructive pulmonary disease / COPD is a multifactorial disease involving various electrolyte abnormalities. This study aimed at evaluating serum electrolyte levels in patients with acute exacerbation of COPD. Material And Methods:This study aimed at evaluating serum electrolyte levels in patients with acute exacerbation of COPD. This study included 100 cases & 100 controls with acute exacerbation of COPD admitted in intensive care unit. All the patients from the cases group were screened for Ca+2 & Mg+2 abnormalities during their intensive care unit stay. In group 1 (cases) correction for abnormal electrolytes were given on the day of admission. Treatment, antibiotics selection, metabolic parameters correction & acid base correction were considered equally in both the groups as per GOLD (Global initiative for chronic obstructive lung disease) guidelines. Symptomatic patients after 48 hours of intensive care unit admission were screened for calcium & magnesium levels & prevalence of hypocalcemia & hypomagnesemia was calculated.Result:It was found out that average duration of intensive care unit stay was reduced significantly in group 1 (cases) in whom the correction of electrolyte imbalance was considered at the time of admission. Also, in the control group, who were still symptomatic after 48 hours of intensive care unit treatment, a significant proportion was found to have hypocalcaemia and hypomagnesaemia (Electrolytes measured after 48 hours).Conclusion:In stable COPD patients there are abnormal serum electrolytes that may get further deranged during acute exacerbations. Thus serum electrolytes level should be monitored routinely in these patients & an attempt should be made to correct them at the earliest to avoid poor outcomes.

Clinical management of primary hypomagnesemia with secondary hypocalcemia / 中华内分泌代谢杂志

Primary hypomagnesemia with secondary hypocalcemia(HSH) is a rare cause of hypoparathyroidism. This article presents a case of a 26-year-old male with recurrent generalized weakness and tetany, and a literature review of diagnosis and treatment of primary HSH. The biochemical tests revealed the patient had severe hypomagnesemia, mild hypocalcemia, hypokalemia, and hypoparathyroidism. Transient receptor potential melastatin-6(TRPM6) gene mutation were detected by gene test, which confirmed the diagnosis of primary HSH. The patient had been treated with long term oral magnesium supplementation, who remained asymptomatic during the follow-up. Primary HSH is a rare autosomal-recessive disorder caused by mutations in the TRPM6 gene which encoding a magnesium permeable channel expressed in the intestine and the kidney. The primary defect is impaired intestinal absorption of magnesium with secondary renal excretion, leading to a series of clinical symptoms. The treatment is mainly through lifelong magnesium supplementation.

Influence of hypomagnesemia on the prognosis of severe septic patients / 中华危重病急救医学

Objective:To investigate the influence of hypomagnesemia on the prognosis of patients with severe sepsis.Methods:A retrospective study was conducted. The clinical data of 207 septic patients admitted to the department of critical care medicine of the First Affiliated Hospital of University of Science and Technology of China from January 1, 2016 to December 21, 2020 were analyzed, including gender, age and laboratory indicators within 24 hours after sepsis diagnosis [procalcitonin (PCT), C-reactive protein (CRP), blood lactic acid (Lac), pH value and blood magnesium, calcium, chlorine and phosphorus levels]. The acute physiology and chronic health evaluation Ⅱ (APACHE Ⅱ) score, sequential organ failure assessment (SOFA) score and 28-day prognosis were collected. The patients were divided into survival group and non-survival group according to the prognosis, and the clinical data and laboratory indexes were compared between the two groups. Pearson correlation test was used to analyze the correlation between clinical indicators. Multivariate Logistic regression analysis was used to screen the risk factors affecting the prognosis. The receiver operator characteristic curve (ROC curve) was drawn, and the area under ROC curve (AUC) was calculated to evaluate the potential prognostic indicators.Results:Among the 207 septic patients, 102 survived and 105 died on the 28th day, and the 28-day mortality was 50.72%. There were no significant differences in gender, age, CRP, pH value, blood chlorine or blood phosphorus levels between the two groups. The blood magnesium and blood calcium levels in the non-survival group were significantly lower than those in the survival group [blood magnesium (mmol/L): 0.68±0.14 vs. 0.80±0.12, blood calcium (mmol/L): 1.93±0.21 vs. 2.01±0.20, both P < 0.01], and PCT, Lac, APACHE Ⅱ score and SOFA score were significantly higher than those in the survival group [PCT (mg/L): 8.32 (1.64, 55.01) vs. 3.55 (0.97, 12.31), Lac (mmol/L): 2.90 (1.70, 4.30) vs. 2.10 (1.03, 3.89), APACHE Ⅱ score: 21.24±6.40 vs. 17.42±7.02, SOFA score: 9.14±3.55 vs. 6.91±3.31, all P < 0.01]. Among the 207 patients, 96 patients had normal blood magnesium level (0.75-1.25 mmol/L) and 111 patients had hypomagnesemia (< 0.75 mmol/L). The 28-day mortality of septic patients in the hypomagnesemia group was significantly higher than that in the normal magnesium group [61.26% (68/111) vs. 38.54% (37/96), P < 0.01]. Pearson correlation analysis showed that the blood magnesium level of sepsis patients was negatively correlated with PCT ( r = -0.173, P < 0.05), and it was positively correlated with APACHE Ⅱ score ( r = 0.159, P < 0.05), but it had no correlation with CRP or SOFA score ( r values were -0.029 and 0.091, both P > 0.05). Logistic regression analysis showed that serum magnesium, APACHE Ⅱ score and SOFA score were independent risk factors for 28-day death in patients with sepsis [serum magnesium: odds ratio ( OR) < 0.001, 95% confidence interval (95% CI) was 0.000-0.002, P < 0.001; APACHE Ⅱ score: OR = 1.092, 95% CI was 1.022-1.168, P = 0.010; SOFA score: OR = 1.168, 95% CI was 1.026-1.330, P = 0.019]. ROC curve analysis showed that blood magnesium and APACHE Ⅱ score had a certain predictive value for 28-day mortality in patients with severe sepsis [AUC (95% CI) was 0.723 (0.655-0.791) and 0.680 (0.607-0.754), respectively]. When the blood magnesium threshold was 0.64 mmol/L, the sensitivity was 41.0% and the specificity was 93.1%. When APACHE Ⅱ score threshold was 16.50, the sensitivity was 78.1% and the specificity was 55.9% indicating that the specificity of serum magnesium was higher than that of APACHE Ⅱ score. Conclusions:Severe septic patients complicated with hypomagnesemia have a poor prognosis. Serum magnesium level can be used as a prognostic indicator for severe septic patients.

Quemadura química por ácido fluorhídrico: mecanismos fisiopatológicos de la lesión / Hydrofluoric acid burn: pathophysiological mechanisms of injury / Queimadura química por ácido fluorídrico: mecanismos fisiopatológicos da lesão

Resumen: Las quemaduras por exposición a químicos son una forma de lesión poco frecuente; sin embargo, los efectos secundarios se pueden considerar catastróficos a corto, mediano y largo plazo. El ácido fluorhídrico es una sustancia química perteneciente a los ácidos, tiene aplicación industrial y doméstica, y se encuentra en diferentes concentraciones. El fluoruro de hidrógeno está formado por un ion hidrógeno y un ion fluoruro, que al entrar en contacto con el agua adquiere su estado ácido, característica que le confiere mayor lesión de tejidos al entrar en contacto con ellos. Reportes describen lesiones de 1% de superficie corporal quemada, en una concentración al 50% capaz de generar toxicidad local y sistémica, que deriva en la muerte en cuestión de horas si no recibe un manejo oportuno encaminado a frenar el mecanismo de lesión, el cual se asocia a disminución de electrolitos calcio y magnesio, así como elevación de potasio, no sin dejar de lado la lesión corrosiva a nivel local que condiciona la aparición de necrosis licuefactiva. El objetivo de este trabajo es dar a conocer al personal médico y paramédico el mecanismo de lesión del ácido fluorhídrico, sus implicaciones clínicas y las alternativas terapéuticas.

Abstract: Chemical exposure burns are a rare form of injury; however, side effects can be considered catastrophic, in the short, medium and long term. Hydrofluoric acid is a chemical substance belonging to acids, it has industrial and domestic application, being in different concentrations. Hydrogen fluoride is made up of a hydrogen ion and a fluoride ion, which, when in contact with water, acquires its acid state, a characteristic that it acquires gives it greater tissue damage when in contact with them. Literary reports described injuries of 1% of the burned body surface, in a concentration of 50% capable of generating local and systemic toxicity, which leads to death in a matter of hours, if the patient does not receive timely management aimed at stopping the mechanism of injury. which is associated with a decrease in calcium and magnesium electrolytes, as well as an increase in potassium, not without neglecting the corrosive lesion at the local level that conditions the appearance of liquefactive necrosis. The objective of this work is to make known to the personal physician and paramedic the mechanism of injury of hydrofluoric acid, its clinical implications and the therapeutic alternatives.

Resumo: As queimaduras por exposição química são uma forma rara de lesão, porém, os efeitos secundários podem ser considerados catastróficos, a curto, médio e longo prazo. O ácido fluorídrico é uma substância química pertencente aos ácidos, possui aplicação industrial e doméstica, sendo encontrado em diferentes concentrações. O fluoreto de hidrogênio é formado por um íon hidrogênio e um íon fluoreto, que quando em contato com a água adquire seu estado ácido, característica que lhe confere maior dano tecidual quando em contato com eles. Relatos literários descrevem lesões de 1% da superfície corporal queimada, em concentração de 50% capaz de gerar toxicidade local e sistêmica, que leva à morte em questão de horas, se não receber tratamento oportuno visando coibir o mecanismo da lesão que está associada a uma diminuição dos eletrólitos de cálcio e magnésio, bem como a um aumento de potássio, não sem deixar de lado a lesão corrosiva a nível local que condiciona o aparecimento de necrose liquefativa. O objetivo deste trabalho é informar o pessoal médico e paramédico sobre o mecanismo de lesão causada pelo ácido fluorídrico, suas implicações clínicas e alternativas terapêuticas.

Hipocalcemia, hipomagnesemia y uso crónico de inhibidores de la bomba de protones / Hypocalcemia, hypomagnesemia, and chronic use of proton pump inhibitors

Introducción: Los inhibidores de la bomba de protones son fármacos usados en múltiples gastropatías. El omeprazol pertenece a este grupo de medicamentos y es aprobado y catalogado como indispensable por la Organización Mundial de la Salud. Esto ha causado que su uso se vuelva constante y hasta cierto punto equívoco. Pese a ser medicamentos seguros muestran efectos secundarios, dentro de los cuales uno ocasional es el trastorno hidroelectrolítico. Objetivo: Presentar un caso clínico en el cual se constató la presencia de efectos secundarios tras el uso de un fármaco de uso constante por la comunidad médica: el omeprazol. Caso clínico: Se presenta a continuación el caso clínico de un paciente masculino con antecedente de hipertensión arterial y gastropatía crónica que muestra uso por 8 años consecutivos de inhibidores de la bomba de protones, al cual se le diagnostica hipomagnesemia e hipocalcemia. Se obtuvieron resultados de laboratorio normales tras administración de suplementos orales y uso de ranitidina con supresión de terapéutica con omeprazol. Conclusiones: Un control constante de los fármacos que usan los pacientes crónicos es fundamental en atención primaria de salud. El uso de inhibidores de la bomba de protones se ha convertido en rutinario y es necesario corroborar siempre la dosis y el tiempo de uso de los fármacos además de la relación con otros medicamentos que use el paciente(AU)

Introduction: Proton-pump inhibitors are drugs used in multiple gastropathies. Omeprazole belongs to this group of medicines; it is approved and classified as essential by the World Health Organization. This has permitted for its use to become constant and, to some extent, misleading. Despite being safe drugs, they show side effects, among which an occasional one is fluid and electrolyte disorders. Objective: To present a clinical case in which the occurrence of side effects was verified after the administration of a drug constantly used by the medical community. Clinical case: The following is a clinical case of a male patient with a history of arterial hypertension and chronic gastropathy, characterized by the usage of proton-pump inhibitors for eight consecutive years, diagnosed with hypomagnesemia and hypocalcemia. Normal laboratory results were obtained after oral supplementation and usage of ranitidine with suppression of omeprazole therapy. Conclusions: Constant control of the drugs used by chronic patients is essential in primary health care. The usage of proton-pump inhibitors has become a routine. It is always necessary to check the dose and time for using the drugs as well as the relationship with other drugs used by the patient(AU)

Serum magnesium levels and the prognosis of type 2 diabetes patients with community-acquired pneumonia / 中华内分泌代谢杂志

Objective:To explore the effects of type 2 diabetes mellitus (T2DM) on the levels of serum magnesium in patients with community-acquired pneumonia (CAP) and the effects of abnormal serum magnesium on the prognosis in T2DM patients with CAP.Methods:The study was a retrospective single-center study conducted in adult patients hospitalized with CAP at the First Hospital of Qinhuangdao between January 2015 and December 2018. These patients were divided into two groups according to the diagnosis of T2DM (control group and T2DM group). The reference range for serum magnesium is from 0.75 to 1.25 mmol/L. The primary endpoint was in-hospital mortality.Results:The prevalences of hypomagnesemia and hypermagnesemia were numerically higher in T2DM group than in control group (hypomagnesemia: 14.6% vs 12.0%, hypermagnesemia: 1.4% vs 0.7%), but there was no statistical difference ( P>0.05). In patients with T2DM, the in-hospital mortalities in patients with normal serum magnesium and hypomagnesemia were 5.9% and 12.7%, respectively; In multivariate logistic regression analysis, the in-hospital mortality of patients with hypomagnesemia was 5.629(95% CI 2.012-15.750, P=0.001)times as much as that of patients with normal serum magnesium. Conclusions:Abnormal serum magnesium was common in T2DM inpatients with CAP and hypomagnesemia was the most common. Hypomagnesemia was closely related to in-hospital mortality in T2DM patients with CAP. The assessment of serum magnesium levels on admission may be helpful in predicting the prognosis of T2DM patients with CAP.

Hypomagnesemia in beef cattle

ABSTRACT: Hypomagnesemia is a major cause of death in grazing beef cows in countries of the Southern Hemisphere such as Argentina, Australia and New Zealand. Here we review the literature on hypomagnesemia in beef cattle and describe an outbreak in Uruguay. The disease occurred in late autumn, affecting 6 to 11-year-old Aberdeen Angus and Hereford x Aberdeen Angus lactating multiparous cows in good body condition, grazing on natural grasslands that had been improved by fertilization and sowing of seeds of ryegrass and oat. Approximately 40 out of 225 cows were affected and 24 (10.7%) died. A presumptive diagnosis of hypomagnesemia was established based on sudden death, acute neuromuscular clinical signs, epidemiological data, and the response to Mg administration. The diagnosis was confirmed by detecting low Mg concentrations in serum (0.47-0.57mmol/L), vitreous humor (0.47-0.80mmol/L), aqueous humor (0.66mmol/L) and cerebrospinal fluid (0.59mmol/L). The largest component of the diet corresponding to fast-growing and exuberant forages of ryegrass and oat had high concentrations of K (3.48%), N (4.38%) and P (0.94%), suggesting secondary hypomagnesemia. In addition, the K/(Ca+Mg) ratio was 2.38 in forages of ryegrass and oat (reference value: 2.2), and 0.15 in the soil (reference value: 0.09), which represent risk factors for hypomagnesemia. In conclusion, hypomagnesemia is an important cause of mortality in beef cattle grazing improved natural grasslands in Uruguay and it can be easily prevented by correct seasonal Mg supplementation.

RESUMO: A hipomagnesemia é uma das principais causas de morte em vacas de corte em pastagem em países do Hemisfério Sul, como Argentina, Austrália e Nova Zelândia. Aqui, revisamos a literatura sobre hipomagnesemia em bovinos de corte e descrevemos um surto no Uruguai. A doença ocorreu no final do outono, afetando vacas Aberdeen Angus e Aberdeen Angus x Hereford de 6-11 anos de idade em boas condições corporais, lactantes, multíparas e pastando em campos naturais que foram melhorados com fertilização e plantio de azevém e aveia. Aproximadamente 40 de 225 vacas foram afetadas e 24 (10,7%) morreram. O diagnóstico presuntivo de hipomagnesemia foi estabelecido com base na morte súbita, sinais clínicos neuromusculares agudos, dados epidemiológicos e a resposta à administração de Mg. O diagnóstico foi confirmado pela detecção de baixos níveis de Mg no soro (0,47-0,57mmol/L), humor vítreo (0,47-0,80mmol/L), humor aquoso (0,66mmol/L) e líquido cefalorraquidiano (0,59mmol/L). O componente mais importante da dieta correspondia a pastagens de azevém e aveia de rápido crescimento, as quais apresentaram altas concentrações de K (3,48%), N (4,38%) e P (0,94%), que sugerem hipomagnesemia secundária. Além disso, a relação K/(Ca+Mg) foi de 2,38 em forragens de azevém e aveia (valor de referência: 2,2) e 0,15 no solo (valor de referência: 0,09), que representam fatores de risco para hipomagnesemia. Em conclusão, a hipomagnesemia é uma causa importante de mortalidade em gado de corte em pastagens naturais melhoradas no Uruguai e pode ser facilmente prevenida pela correta suplementação sazonal de Mg.

Hypomagnesemia in beef cattle / Hipomagnesemia em bovinos de corte

Hypomagnesemia is a major cause of death in grazing beef cows in countries of the Southern Hemisphere such as Argentina, Australia and New Zealand. Here we review the literature on hypomagnesemia in beef cattle and describe an outbreak in Uruguay. The disease occurred in late autumn, affecting 6 to 11-year-old Aberdeen Angus and Hereford x Aberdeen Angus lactating multiparous cows in good body condition, grazing on natural grasslands that had been improved by fertilization and sowing of seeds of ryegrass and oat. Approximately 40 out of 225 cows were affected and 24 (10.7%) died. A presumptive diagnosis of hypomagnesemia was established based on sudden death, acute neuromuscular clinical signs, epidemiological data, and the response to Mg administration. The diagnosis was confirmed by detecting low Mg concentrations in serum (0.47-0.57mmol/L), vitreous humor (0.47-0.80mmol/L), aqueous humor (0.66mmol/L) and cerebrospinal fluid (0.59mmol/L). The largest component of the diet corresponding to fast-growing and exuberant forages of ryegrass and oat had high concentrations of K (3.48%), N (4.38%) and P (0.94%), suggesting secondary hypomagnesemia. In addition, the K/(Ca+Mg) ratio was 2.38 in forages of ryegrass and oat (reference value: 2.2), and 0.15 in the soil (reference value: 0.09), which represent risk factors for hypomagnesemia. In conclusion, hypomagnesemia is an important cause of mortality in beef cattle grazing improved natural grasslands in Uruguay and it can be easily prevented by correct seasonal Mg supplementation.(AU)

A hipomagnesemia é uma das principais causas de morte em vacas de corte em pastagem em países do Hemisfério Sul, como Argentina, Austrália e Nova Zelândia. Aqui, revisamos a literatura sobre hipomagnesemia em bovinos de corte e descrevemos um surto no Uruguai. A doença ocorreu no final do outono, afetando vacas Aberdeen Angus e Aberdeen Angus x Hereford de 6-11 anos de idade em boas condições corporais, lactantes, multíparas e pastando em campos naturais que foram melhorados com fertilização e plantio de azevém e aveia. Aproximadamente 40 de 225 vacas foram afetadas e 24 (10,7%) morreram. O diagnóstico presuntivo de hipomagnesemia foi estabelecido com base na morte súbita, sinais clínicos neuromusculares agudos, dados epidemiológicos e a resposta à administração de Mg. O diagnóstico foi confirmado pela detecção de baixos níveis de Mg no soro (0,47-0,57mmol/L), humor vítreo (0,47-0,80mmol/L), humor aquoso (0,66mmol/L) e líquido cefalorraquidiano (0,59mmol/L). O componente mais importante da dieta correspondia a pastagens de azevém e aveia de rápido crescimento, as quais apresentaram altas concentrações de K (3,48%), N (4,38%) e P (0,94%), que sugerem hipomagnesemia secundária. Além disso, a relação K/(Ca+Mg) foi de 2,38 em forragens de azevém e aveia (valor de referência: 2,2) e 0,15 no solo (valor de referência: 0,09), que representam fatores de risco para hipomagnesemia. Em conclusão, a hipomagnesemia é uma causa importante de mortalidade em gado de corte em pastagens naturais melhoradas no Uruguai e pode ser facilmente prevenida pela correta suplementação sazonal de Mg.(AU)

Depleción corporal de magnesio durante el embarazo por nefropatía hipercalcemica. Reporte de caso y revisión de la literatura / Magnesium depletion secondary to hypercalcémie nephropathy during pregnancy: Case report and literatura review

Resumen El magnesio sérico es el "ion olvidado" en la práctica médica: la mayoría de veces no se tiene en cuenta en los estudios clínicos, sus alteraciones tienden a ser ignoradas y su aproximación terapéutica no está definida de forma adecuada. La sintomatologia producto de la hipomagnesemia es inespecífica y su aproximación diagnostica es compleja. Se presenta el caso de una paciente con hipomagnesemia sintomática severa asociada a daño renal por hipercalcemia durante la gestación.

Abstract Serum magnesium is the «forgotten ion¼ in medical practice. Most of the time it is not taken into account in clinical studies, its alterations tend to be ignored and its therapeutic approach is not well defined. The symptomatology produced by hypomagnesemia is nonspecific and its diagnostic approach is complex. We present the case of a pregnant patient with symptomatic hypomagnesemia secondary to renal damage due to hypercalcemia.

Risk factors and clinical outcome of hypomagnesemic patients in pediatric intensive care

Background: Hypomagnesemia is a common finding in current medical practice, especially in critically ill patients. Magnesium ion plays a vital role in various metabolic processes in body and its deficiency leading to serious clinical consequences. Since hypomagnesemia is most often asymptomatic, it goes unsuspected and therefore undiagnosed. Hence, early detection of hypomagnesemia has prognostic and therapeutic implications. It is imperative to understand the various risk factors and their clinical outcome that is associated with hypomagnesemia.Methods: This is an observational study done in a tertiary centre in Bangalore, India where-in 100 children who met the inclusion criteria, admitted to the PICU were recruited and prospectively studied. Serum Magnesium along with various clinical and biochemical parameters were correlated to enumerate the various risk factors associated with hypomagnesemia.Results: In this study authors found the incidence of hypomagnesemia to be around 53%. Authors found higher incidence in age group of 1-5 yrs (40%) and least were in the age groups of <1 year and more than 10 years (19%) and there was no gender preponderance. Authors also evaluated the various risk factors associated with hypomagnesemia. There was significant association of hypocalcemia (60%) and hypokalemia (45.2%) with hypomagnesemia. Infections (33.9%) and neurological disorders (26.41%) seemed to collectively comprise around 60% of the hypomagnesemic group. All patients admitted secondary to sepsis and Traumatic Brain Injury (TBI) had hypomagnesemia proving to be a significant risk factor. Authors also found increased mortality among hypomagnesemic group. However, found no association between low serum magnesium and PICU stay.Conclusions: There is high prevalence of hypomagnesemia in critically ill patients and is associated with a higher mortality. It is also commonly associated with infections, CNS disorders, respiratory diseases and metabolic derangements like hypokalaemia and hypocalcaemia. There is no association of Hypomagnesemia with duration of PICU stay.

Síndrome de Gitelman / Gitelman syndrome

El síndrome de Gitelman forma parte de las denominadas tubulopatías perdedoras de sal. El bloqueo parcial de la reabsorción de sodio en el túbulo contorneado distal determina la aparición de hipokalemia e hipomagnesemia. Se realizó un estudio descriptivo de una serie de cinco casos de síndrome de Gitelman (4 mujeres, de 28 a 85 años de edad) atendidos en nuestra institución entre los años 2004 y 2015. La forma de diagnóstico más frecuente en nuestra serie fue por hallazgo de laboratorio. El único síntoma clínico manifestado en forma espontánea fue astenia. En cuanto a los valores de laboratorio, la potasemia fue 2.5 ± 0.5 mmol/l, con un valor mínimo de 2.1. Adicionalmente, el valor de magnesio en sangre fue 1.3 ± 0.3 mg/dl. Como conclusión, observamos que las formas de presentación consisten en alteraciones bioquímicas con o sin manifestaciones inespecíficas, lo que representa actualmente la mayor dificultad diagnóstica y refuerza la importancia de lograr un diagnóstico oportuno, en especial en pacientes jóvenes y con valores críticos de potasio sérico.

Gitelman syndrome is one of the salt losing tubulopathies. Hypokalemia and hypomagnesemia appear in the setting of the partial blockade of salt absorption in the distal tubule. We conducted a descriptive study of a case series of five patients with Gitelman syndrome (4 women, from 28 to 85 years) in our institution, between the years 2004 and 2015. The most frequent form of diagnosis in our series was by laboratory finding. The only acknowledged clinical symptom was malaise. Regarding laboratory findings, the mean potassemia was of 2.5 ± 0.5 mmol/l, with a minimum value of 2.1 mmol/l. Additionally, the serum magnesium value was of 1.3 ± 0.3 mg/dl. In conclusion, we observed that the forms of presentation consist of biochemical alterations with or without nonspecific manifestations, which currently represents the greatest diagnostic difficulty and reinforces the importance to achieve a timely diagnosis, especially in young patients with critical serum potassium values.

Hipomagnesemia en recién nacidos con encefalopatía hipóxico isquémica en hipotermia corporal total / Hypomagnesemia in newborns with hypoxic ischemic encephalopathy and whole-body hypothermia

Resumen: Introducción: En recién nacidos (RN) con encefalopatía hipóxico isquémica (EHI) en hipotermia se describen alte raciones metabólicas que se asocian a pronóstico neurológico. La hipomagnesemia ha sido reportada en la literatura, pero no es medida ni corregida en todos los centros de atención neonatal. Objeti vo: Evaluar la frecuencia de hipomagnesemia e hipocalcemia en RN con EHI en tratamiento con hipotermia corporal total y evaluar la respuesta al aporte de sulfato de magnesio. Pacientes y Méto do: Estudio prospectivo, observational y descriptivo en RN con EHI sometidos a hipotermia corporal total, hospitalizados entre los años 2016-2017. Se realizó medición seriada en sangre de magnesemia (Mg) y calcemia (Ca). Con Mg menor o igual de 1,8 mg/dl se administró suplemento como sulfato de Mg para mantener niveles entre 1,9 y 2,8 mg/dl. Se describió la frecuencia de hipomagnesemia e hipocalcemia y su presentación en el tiempo. Se realizó registro prospectivo de evolución clínica. Se hizo un análisis estadístico descriptivo, con medidas de tendencia central. Resultados: Se incluyeron 16 pacientes. Presentaron hipomagnesemia 13/16 (81,3%), la que fue precoz (6-36 h de vida), nor malizándose con aporte de sulfato de magnesio, requiriendo 2a dosis 4 de ellos. Presentaron hipo- calcemia 6/16 (37,5%). Conclusiones: La hipomagnesemia es frecuente (80%), similar a lo descrito en la literatura. Dado su importancia fisiológica debe controlarse y corregirse, de igual manera que el calcio.

Abstract: Introduction: In newborns with the diagnosis of hypoxic-ischemic encephalopathy (HIE) treated with hypother mia, metabolic alterations are observed, which are associated with neurological prognosis. Hypo magnesemia has been reported frequently in the literature in these patients, but it is not measured or corrected in all neonatal healthcare centers. Objective: To evaluate the frequency of hypomag nesemia and hypocalcemia in newborns with HIE treated with whole-body hypothermia and to evaluate the response to the magnesium sulfate administration. Patients and Method: Prospective, observational and descriptive study in hospitalized newborns with the diagnosis of HIE and trea ted with whole-body hypothermia between the years 2016 and 2017. Serial blood measurement of magnesemia (Mg) and calcemia (Ca) was performed. When presenting an Mg level < 1.8 mg/dl, supplementation with magnesium sulfate was administered to maintain levels between 1.9 and 2.8 mg/dl. The frecuency of hypomagnesemia, hypocalcemia and clinical evolution was registered. A descriptive statistical analysis was performed, with central tendency measures. Results: Sixteen ca ses were included, 13 of them presented hypomagnesemia (81.3%), with early-onset (6-36 hours of life), which was normalized with magnesium sulfate treatment, receiving a second dose 4 patients. Six of 16 patients presented hypocalcemia (37.5 %). Conclusions: Hypomagnesemia is frequent (80%), similar to that described in the literature, and should be controlled and corrected early, given its physiological role, in the same way that calcium is controlled.

Evaluation of admission serum magnesium levels in patients with septic shock and its correlation with outcome

Background: Admission hypomagnesemia has been linked with an increased risk of septic shock. The purpose of this study was to evaluate admission serum magnesium levels in patients with septic shock and to determine its correlation with the outcomes.Methods: It was a prospective observational study. Total 50 patients fitting the Sepsis-3 definition between time period of June 2017 to November 2018 were included in the study. Patients with suspected infection were identified at the bedside with qSOFA. Admission serum magnesium levels was measured for all patients included. APACHE II scores were calculated at the end of 24 hours after admission. Routine standard of care treatment was provided to all patients. The patients were monitored for organ dysfunctions based on daily SOFA scores, ventilator free days, vasopressors free days, dialysis free days, length of intensive care unit stay, length of hospital stay. The data was analysed using Statistical Package for Social Sciences for MS Windows.Results: In this study hypomagnesemia was prevalent in 18%, normomagnesemia in 62% and hypermagnesemia in 20% of total included patients. The mean vasopressor free days in Hypomagnesemia group (7.11�.79 days) were higher than those in normomagnesemic patients (5.06�51 days) and hypermagnesemia patients (1.70�09 days). Out of total 50 patients 18 died and 32 recovered. 11 patients out of 32 who recovered had abnormal admission serum magnesium levels whereas 8 pts out of 18 who died had abnormal admission serum magnesium levels. SOFA score in hypomagnesemic patients admitted with septic shock compared with those of normomagnesemic and hypermagnesemic patients was statistically significant.Conclusions: Author did not find any statistically significant correlation between admission magnesium levels in septic shock patients and outcomes although SOFA score was higher in hypomagnesemic patients admitted with septic shock compared with those of normomagnesemic and hypermagnesemic patients. Serum magnesium may not truly reflect body抯 magnesium status. RBC magnesium may need to be studied to see whether it is a more reliable biomarker.

Hypoparathyroidism in a Case of Transfusion Dependent Thalassemia / Journal of the ASEAN Federation of Endocrine Societies

@#Repeated blood transfusions in transfusion dependent thalassemia (TDT) leads to iron overload-related endocrine complications. Hypoparathyroidism (HPT) with severe signs of hypocalcemia is a recognized complication among these patients. A 14-year-old thalassaemic boy, on regular transfusion and on anticonvulsant therapy with a presumptive diagnosis of epilepsy for the last 1 year, was admitted with high fever and severe muscle cramps with positive Trousseau’s sign. He was diagnosed as a case of primary HPT and magnesium deficiency on the basis of low serum calcium, high phosphate, normal alkaline phosphates, very low intact parathyroid hormone (iPTH), normal serum vitamin D and very low serum magnesium level. His calcium, magnesium and phosphate level normalised following treatment with intravenous magnesium and calcium. His iPTH improved but remained at low normal. He was discharged from hospital with oral calcium, calcitriol, and magnesium supplementation. The anticonvulsant (Phenobarbitone) was successfully withdrawn gradually over the next six months without any recurrence of seizure in the subsequent 3 years of follow up. Acquired HPT (apparently from hemosiderosis) is a common cause of hypocalcemia; and magnesium depletion further complicated the situation leading to severe hypocalcemia with recurrent episodes of convulsion. Magnesium replacement improved the parathyroid hormone (PTH) value proving its role in acquired HPT. Very high phosphate level on admission and poor PTH response with respect to the low serum calcium, indicates intrinsic parathyroid pathology. Metabolic abnormalities should always be evaluated in thalassaemic subject with seizure disorder and it appears that the initial convulsive episodes were due to hypocalcemia. Muscle pain, cramps or convulsion may occur from HPT and simultaneous magnesium deficiency in transfusion dependent thalassaemic subjects. Metabolic correction is more important than anticonvulsant medication. Calcium and magnesium should both be assessed routinely in transfusion dependent thalassemic patients.

A study of biochemical abnormalities and manifestations of neonatal seizures

Background: Neonatal seizure is a common neurological problem in the neonatal period with a frequency of 1.5 to 14/1000 neonates1. Neonatal seizures have always been a topic of particular interest because of their universal occurrence. A varied number of conditions are capable of causing seizures in the neonatal period. The presence of a seizure does not constitute a diagnosis but is a symptom of an underlying central nervous system disorder due to systemic or biochemical disturbances. This study aims to study the various clinical types of seizures and the biochemical abnormalities associated with them.Methods: This prospective study was conducted in the neonatology unit, department of pediatrics, C.S.I. Holdsworth Memorial Hospital, Mysore. Details of history, examination and investigations were recorded on predesigned proforma.Results: Out of total 54 cases, 47(87%) cases had seizures during first 3 days of life and hypoxic ischemic ' encephalopathy (HIE) remains the main etiological factor in 20 (37.04%) cases. More than one metabolic abnormality was present in 6 cases. Hypoglycemia & hypomagnesemia were the commonest abnormality in neonates having seizures.Conclusions: A biochemical work up is necessary for all cases of neonatal seizures. The type of seizure does not give much information as to whether the seizures are purely metabolic or organic or about the type of biochemical abnormality.