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Bastug F, Nalcacioglu H, Ozaltin F, Korkmaz E, Yel S. Nephropathic Cystinosis Mimicking Bartter Syndrome: a Novel Mutation. IRANIAN JOURNAL OF KIDNEY DISEASES 2018; 12:61-63. [PMID: 29421779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 09/20/2017] [Accepted: 09/24/2017] [Indexed: 06/08/2023]
Abstract
Cystinosis is a rare autosomal recessive disorder resulting from defective lysosomal transport of cystine due to mutations in the cystinosin lysosomal cystine transporter (CTNS) gene. The clinical phenotype of nephropathic cystinosis is characterized by renal tubular Fanconi syndrome and development of end-stage renal disease during the first decade. Although metabolic acidosis is the classically prominent finding of the disease, a few cases may present with hypokalemic metabolic alkalosis mimicking Bartter syndrome. Bartter-like presentation may lead to delay in diagnosis and initiation of specific treatment for cystinosis. We report a case of a 6-year-old girl initially presenting with the features of Bartter syndrome that was diagnosed 2 years later with nephropathic cystinosis and a novel CTNS mutation.
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Jiménez JV, Carrillo-Pérez DL, Rosado-Canto R, García-Juárez I, Torre A, Kershenobich D, Carrillo-Maravilla E. Electrolyte and Acid-Base Disturbances in End-Stage Liver Disease: A Physiopathological Approach. Dig Dis Sci 2017; 62:1855-1871. [PMID: 28501971 DOI: 10.1007/s10620-017-4597-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Accepted: 04/26/2017] [Indexed: 12/17/2022]
Abstract
Electrolyte and acid-base disturbances are frequent in patients with end-stage liver disease; the underlying physiopathological mechanisms are often complex and represent a diagnostic and therapeutic challenge to the physician. Usually, these disorders do not develop in compensated cirrhotic patients, but with the onset of the classic complications of cirrhosis such as ascites, renal failure, spontaneous bacterial peritonitis and variceal bleeding, multiple electrolyte, and acid-base disturbances emerge. Hyponatremia parallels ascites formation and is a well-known trigger of hepatic encephalopathy; its management in this particular population poses a risky challenge due to the high susceptibility of cirrhotic patients to osmotic demyelination. Hypokalemia is common in the setting of cirrhosis: multiple potassium wasting mechanisms both inherent to the disease and resulting from its management make these patients particularly susceptible to potassium depletion even in the setting of normokalemia. Acid-base disturbances range from classical respiratory alkalosis to high anion gap metabolic acidosis, almost comprising the full acid-base spectrum. Because most electrolyte and acid-base disturbances are managed in terms of their underlying trigger factors, a systematic physiopathological approach to their diagnosis and treatment is required.
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Galešić K, Horvatić I, Ilić M, Ćuk M, Crnogorac M, Ljubanović DG. [HYPOKALEMIC METABOLIC ALKALOSIS – A REPORT OF SIX CASES]. LIJECNICKI VJESNIK 2016; 138:260-265. [PMID: 30148552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this article six patients with hypokalemic metabolic alkalosis, classified as Bartter or Gitelman syndrome are presented. Both syndromes result from different gene mutation inducing impaired function of the transporters involved in sodium, chloride and potassium reapsorption in thick ascending limb of the loop of Henle and distal convoluted tubules. These syndromes typically present with hypokalemia, metabolic alkalosis, hyperreninemic hyperaldosteronism without hypertension, polyuria and muscle weakness. Other clinical characteristics may vary considerably, depending on the gene expression. Correct diagnosis is only possible using expensive and not-routinely available genetic testing. Routine laboratory tests, especially those considering serum and urine electrolytes, can help in recognizing these syndromes and therefore in timely beginning of treatment. The most important distinctive laboratory findings are serum magnesium concentration and urine calcium excretion. In Bartter syndrome typically there is hypercalciuria with or without hypomagnesemia, while in Gitelman syndrome typical findings are hypocalciuria and hypomagnesemia. Recognizing and treating these patients is important due to possible increased morbidity and mortality induced by severe electrolyte imbalance.
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Villa-Bellosta R, González-Parra E, Egido J. Alkalosis and Dialytic Clearance of Phosphate Increases Phosphatase Activity: A Hidden Consequence of Hemodialysis. PLoS One 2016; 11:e0159858. [PMID: 27454315 PMCID: PMC4959680 DOI: 10.1371/journal.pone.0159858] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 07/08/2016] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND Extracellular pyrophosphate is a potent endogenous inhibitor of vascular calcification, which is degraded by alkaline phosphatase (ALP) and generated by hydrolysis of ATP via ectonucleotide pyrophosphatase/phosphodiesterase 1 (eNPP1). ALP activity (as routinely measured in clinical practice) represents the maximal activity (in ideal conditions), but not the real activity (in normal or physiological conditions). For the first time, the present study investigated extracellular pyrophosphate metabolism during hemodialysis sessions (including its synthesis via eNPP1 and its degradation via ALP) in physiological conditions. METHODS AND FINDINGS 45 patients in hemodialysis were studied. Physiological ALP activity represents only 4-6% of clinical activity. ALP activity increased post-hemodialysis by 2% under ideal conditions (87.4 ± 3.3 IU/L vs. 89.3 ± 3.6 IU/L) and 48% under physiological conditions (3.5 ± 0.2 IU/L vs. 5.2 ± 0.2 IU/L). Pyrophosphate synthesis by ATP hydrolysis remained unaltered post-hemodialysis. Post-hemodialysis plasma pH (7.45 ± 0.02) significantly increased compared with the pre-dialysis pH (7.26 ± 0.02). The slight variation in pH (~0.2 units) induced a significant increase in ALP activity (9%). Addition of phosphate in post-hemodialysis plasma significantly decreased ALP activity, although this effect was not observed with the addition of urea. Reduction in phosphate levels and increment in pH were significantly associated with an increase in physiological ALP activity post-hemodialysis. A decrease in plasma pyrophosphate levels (3.3 ± 0.3 μmol/L vs. 1.9 ± 0.1 μmol/L) and pyrophosphate/ATP ratio (1.9 ± 0.2 vs. 1.4 ± 0.1) post-hemodialysis was also observed. CONCLUSION Extraction of uremic toxins, primarily phosphate and hydrogen ions, dramatically increases the ALP activity under physiological conditions. This hitherto unknown consequence of hemodialysis suggests a reinterpretation of the clinical value of this parameter.
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Ryuge A, Matsui K, Shibagaki Y. Hyponatremic Chloride-depletion Metabolic Alkalosis Successfully Treated with High Cation-gap Amino Acid. Intern Med 2016; 55:1765-7. [PMID: 27374680 DOI: 10.2169/internalmedicine.55.6356] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Chloride (Cl)-depletion alkalosis (CDA) develops due to the loss of Cl-rich body fluid, i.e., vomiting or diuretics use, and is typically treated with a chloride-rich solution such as normal saline (NS). Although NS is one of the most utilized Cl-rich solutions, high cation-gap amino acid (HCG-AA) predominantly comprises Cl and less sodium, making HCG-AA more efficient in correcting CDA. We herein report a case of CDA with chronic hyponatremia after frequent vomiting, which was successfully treated with HCG-AA without overcorrecting hyponatremia or causing hypervolemia. HCG-AA may be more beneficial than NS for treating hyponatremic or hypervolemic metabolic alkalosis.
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Klingeman HM, Kearns AE. 69-Year-Old Woman With Confusion and Fatigue. Mayo Clin Proc 2016; 91:e1-6. [PMID: 26763520 DOI: 10.1016/j.mayocp.2015.06.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 06/16/2015] [Accepted: 06/25/2015] [Indexed: 10/22/2022]
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Fontana V, Santinelli S, Internullo M, Marinelli P, Sardo L, Alessandrini G, Borgognoni L, Ferrazza AM, Bonini M, Palange P. Effect of acetazolamide on post-NIV metabolic alkalosis in acute exacerbated COPD patients. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2016; 20:37-43. [PMID: 26813451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE Non-invasive ventilation (NIV) is an effective treatment in patients with acute exacerbation of COPD (AECOPD). However, it may induce post-hypercapnic metabolic alkalosis (MA). This study aims to evaluate the effect of acetazolamide (ACET) in AECOPD patients treated with NIV. PATIENTS AND METHODS Eleven AECOPD patients, with hypercapnic respiratory failure and MA following NIV, were treated with ACET 500 mg for two consecutive days and compared to a matched control group. Patients and controls were non invasively ventilated in a bilevel positive airway pressure (BiPAP) mode to a standard maximal pressure target of 15-20 cmH2O. RESULTS ACET intra-group analysis showed a significant improvement for PaCO2 (63.9 ± 9.8 vs. 54.9 ± 8.3 mmHg), HCO3- (43.5 ± 5.9 vs. 36.1 ± 5.4 mmol/L) and both arterial pH (7.46 ± 0.06 vs. 7.41 ± 0.06) and urinary pH (6.94 ± 0.77 vs 5.80 ± 0.82), already at day 1. No significant changes in endpoints considered were observed in the control group at any time-point. Inter-group analysis showed significant differences between changes in PaCO2 and HCO3- (delta), both at day 1 and 2. Furthermore, the length of NIV treatment was significantly reduced in the ACET group compared to controls (6 ± 8 vs. 19 ± 19 days). No adverse events were recorded in the ACET and control groups. CONCLUSIONS ACET appears to be effective and safe in AECOPD patients with post-NIV MA.
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Nascimento L, Calcagno PL. Metabolic alkalosis: role of the kidney. CONTRIBUTIONS TO NEPHROLOGY 2015; 27:54-60. [PMID: 7026163 DOI: 10.1159/000396128] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Kurtzman NA, Arruda JA, Westenfelder C. Gastric alkalosis. CONTRIBUTIONS TO NEPHROLOGY 2015; 14:155-61. [PMID: 720081 DOI: 10.1159/000402357] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Hauguel M, Ait-Oufella H, Guidet B, Maury E, Bigé N. Hypokalemia and metabolic alkalosis: do not forget the patient's hands. Minerva Anestesiol 2014; 80:504-505. [PMID: 24257148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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Marston N, Kehl D, Copp J, Nourbakhsh N, Rifkin DE. Alkalotics anonymous: severe metabolic alkalosis. Am J Med 2014; 127:25-7. [PMID: 24268303 DOI: 10.1016/j.amjmed.2013.09.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2013] [Revised: 09/19/2013] [Accepted: 09/20/2013] [Indexed: 11/18/2022]
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García Martínez T, Montañés Pauls B, Reig Valero R, Roch Ventura MA, Ibáñez Benages E. [Hydrochloric acid for treatment of severe metabolic alkalosis]. FARMACIA HOSPITALARIA : ORGANO OFICIAL DE EXPRESION CIENTIFICA DE LA SOCIEDAD ESPANOLA DE FARMACIA HOSPITALARIA 2013; 37:337-8. [PMID: 24010696 DOI: 10.7399/fh.2013.37.4.684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Kościelska M, Mieczkowski M. [Alkalosis]. WIADOMOSCI LEKARSKIE (WARSAW, POLAND : 1960) 2013; 66:329-333. [PMID: 24490489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
An elevation of arterial blood pH called alkalosis remains an underestimated condition in hospitalized patients. Serious alkalosis can be associated with high risk of death. The disorder can be caused by increased concentration of bicarbonate (metabolic alkalosis) or decreased concentration of carbon dioxide (respiratory alkalosis). In most cases of metabolic alkalosis it is generated by vomiting or diuretic use, whereas respiratory alkalosis is provoked by hyperventilation associated with respiratory or neurological disorder. Maintenance of metabolic alkalosis is possible only in patients with impaired renal base excretion which is most often produced by hypochloremia. In both respiratory and metabolic alkaloses treatment depends on the underlying factor. In hyperventilation syndrome is based on behavioral therapy. In most cases of metabolic alkalosis the administration of sodium and potassium chloride forms a substantial part of therapy.
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Siregar P. Sixteen years experience in six cases of Conn syndrome in Jakarta. ACTA MEDICA INDONESIANA 2012; 44:150-153. [PMID: 22745147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Primary hyperaldosteronism or Conn syndrome is the syndrome formed from the triad of hypertension, hypokalemia, and metabolic alkalosis. Six patients of Conn syndrome, two females (21 and 50 years) and 4 males (30, 33, 46, dan 51 years), were reported. All of the cases came with the symptoms of weakness of the lower extremities in conjunction with hypertension. The plasma aldosterone level was high with the very low plasma renin activity in all of the cases. All of the patients in this case had metabolic alkalosis. Unilateral adrenal mass was found on CT-Scan or MRI imaging. Following adrenalectomy, three patients (one female and two males) still needed one type of anti hypertension drug. All of the patients did not require anti aldosterone anymore. The plasma aldosterone returned to normal value in three patients while in three other patients were not checked. The histopathology of the adrenal revealed the adenoma of the adrenal cortex in all of the six cases.
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Brito JP, Singh E, Basu A. Iatrogenic heart block during treatment of a patient with Cushing's syndrome: report of a case. Endocrine 2012; 41:344. [PMID: 22124942 DOI: 10.1007/s12020-011-9567-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Sotirakopoulos N, Kalogiannidou I, Tersi M, Armentzioiou K, Sivridis D, Mavromatidis K. Acid-base and electrolyte disorders in patients with diabetes mellitus. SAUDI JOURNAL OF KIDNEY DISEASES AND TRANSPLANTATION 2012; 23:58-62. [PMID: 22237220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023] Open
Abstract
Diabetes mellitus is the most common metabolic disorder in the community. The diabetics may suffer from acid-base and electrolyte disorders due to complications of diabetes mellitus and the medication they receive. In this study, acid-base and electrolyte disorders were evaluated among outpatient diabetics in our hospital. The study consisted of patients with diabetes mellitus who visited the hospital as outpatients between the period January 1, 2004 to December 31, 2006. The patients' medical history, age and type of diabetes were noted, including whether they were taking diuretics and calcium channel blockers or not. Serum creatinine, proteins, sodium, potassium and chloride and blood gases were measured in all patients. Proteinuria was measured by 24-h urine collection. Two hundred and ten patients were divided in three groups based on the serum creatinine. Group A consisted of 114 patients that had serum creatinine < 1.2 mg/dL, group B consisted of 69 patients that had serum creatinine ranging from 1.3 to 3 mg/dL and group C consisted of 27 patients with serum creatinine > 3.1 mg/dL. Of the 210 patients, 176 had an acid-base disorder. The most common disorder noted in group A was metabolic alkalosis. In groups B and C, the common disorders were metabolic acidosis and alkalosis, and metabolic acidosis, respectively. The most common electrolyte disorders were hypernatremia (especially in groups A and B), hyponatremia (group C) and hyperkalemia (especially in groups B and C). It is concluded that: (a) in diabetic outpatients, acid-base and electrolyte disorders occurred often even if the renal function is normal, (b) the most common disorders are metabolic alkalosis and metabolic acidosis (the frequency increases with the deterioration of the renal function) and (c) the common electrolyte disorders are hypernatremia and hypokalemia.
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Metso S, Arola J, Raade M, Välimäki M. [Clinico-pathological conference report: sudden deterioration of general condition, hypokalemia and diabetes in an elderly man]. DUODECIM; LAAKETIETEELLINEN AIKAKAUSKIRJA 2012; 128:1487-1496. [PMID: 22937608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
An elderly man had been treated for prostate cancer with radiation and neoadjuvant hormonal therapy. One year after the cessation of radiation therapy, the PSA value was found to be elevated. A non-steroidal antiandrogen bicalutamide was initiated to the patient. Due to poor treatment response the drug was changed for the GnRH agonist leuprorelin acetate, which upon injection caused a sudden deterioration of the patient's general condition. He was delirious and in pain, and was diagnosed with leukocytosis, hypokalemia, hyperglycemia and metabolic alkalosis. The patient was referred to the endocrinological clinic for evaluation of the metabolic-endocrinological problems. He succumbed to disseminated prostate cancer.
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Alshayeb H, Patel V, Naseer A, Mangold TA, Wall BM. Multiple myeloma with hypercalcemia and chloride resistant metabolic alkalosis. TENNESSEE MEDICINE : JOURNAL OF THE TENNESSEE MEDICAL ASSOCIATION 2011; 104:47-49. [PMID: 22073517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
This report describes a novel presentation of chloride resistant metabolic alkalosis in a patient with hypercalcemia related to Multiple Myeloma (MM). A 51-year-old male with newly diagnosed MM presented with widespread skeletal involvement, calcium (Ca(+2)) of 18 mg/dL, phosphorous (PO4) of 6 mg/dL, serum bicarbonate (HCO3) of 37 mEq/L, and serum creatinine (Cr) of 2.6 mg/dL Other causes of metabolic alkalosis such as vomiting, diuretics, alkali ingestion, mineralocorticoid excess and hypokalemia were excluded. Hypercalcemia and metabolic alkalosis were only partially corrected after rehydration, calcitonin and steroids. Subsequent treatment with zoledronic acid resulted in resolution of hypercalcemia and correction of metabolic alkalosis.The chloride resistant component of metabolic alkalosis was most likely related to extensive release of Ca(+2), carbonate and phosphate from bone by activated osteoclasts with inhibited osteoblastic activity. The additional reduction in glomerular filtration rate due to MM, contributed to a triad mimicking Calcium-Alkali syndrome.
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Abstract
INTRODUCTION Pendred syndrome, a combination of sensorineural deafness, impaired organification of iodide in the thyroid and goitre, results from biallelic defects in pendrin (encoded by SLC26A4), which transports chloride and iodide in the inner ear and thyroid respectively. Recently, pendrin has also been identified in the kidneys, where it is found in the apical plasma membrane of non-α-type intercalated cells of the cortical collecting duct. Here, it functions as a chloride-bicarbonate exchanger, capable of secreting bicarbonate into the urine. Despite this function, patients with Pendred syndrome have not been reported to develop any significant acid-base disturbances, except a single previous reported case of metabolic alkalosis in the context of Pendred syndrome in a child started on a diuretic. CASE REPORT We describe a 46-year-old female with sensorineural deafness and hypothyroidism, who presented with severe hypokalaemic metabolic alkalosis during inter-current illnesses on two occasions, and who was found to be homozygous for a loss-of-function mutation (V138F) in SLC26A4. Her acid-base status and electrolytes were unremarkable when she was well. CONCLUSION This case illustrates that, although pendrin is not usually required to maintain acid-base homeostasis under ambient condition, loss of renal bicarbonate excretion by pendrin during a metabolic alkalotic challenge may contribute to life-threatening acid-base disturbances in patients with Pendred syndrome.
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Marah MA. Pseudo-Bartter as an initial presentation of cystic fibrosis. A case report and review of the literature. EASTERN MEDITERRANEAN HEALTH JOURNAL = LA REVUE DE SANTE DE LA MEDITERRANEE ORIENTALE = AL-MAJALLAH AL-SIHHIYAH LI-SHARQ AL-MUTAWASSIT 2010; 16:699-701. [PMID: 20799601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
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Sundar U, Lakkas Y, Asole D, Vaidya M. Gitelman's syndrome presenting as recurrent paralytic ileus due to chronic renal tubular K+ wasting. THE JOURNAL OF THE ASSOCIATION OF PHYSICIANS OF INDIA 2010; 58:322-324. [PMID: 21117354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Gitelman' syndrome, although a relatively frequent cause of chronic hypokalemia in adults, is rarely diagnosed correctly. It is frequently confused with overt diuretic abuse or Bartter's syndrome. We describe a 60 year man with 2 year history of recurrent paralytic ileus attributed to recurrent hypokalemia. Investigations in this patient revealed hypokalemia, metabolic alkalosis, hypocalciurea, and hypomagnesemia a tetrad diagnostic of Gitelman's syndrome. The peculiar clinical features of this condition and its management are discussed.
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Tugrul S, Telci L, Yildirim A, Yanar H, Cakar N. Case report of severe metabolic alkalosis: life-compatible new level. THE JOURNAL OF TRAUMA 2010; 68:E61-E63. [PMID: 20220402 DOI: 10.1097/ta.0b013e31816927b4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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Lumpaopong A, Thirakhupt P, Srisuwan K, Chulamokha Y. Rare F311L CFTR gene mutation in a child presented with recurrent electrolyte abnormalities and metabolic alkalosis: case report. JOURNAL OF THE MEDICAL ASSOCIATION OF THAILAND = CHOTMAIHET THANGPHAET 2009; 92:694-698. [PMID: 19459534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Delta F508 mutation is recognized as the most common genotype of cystic fibrosis (CF) however, there are small numbers of CF patients having Delta F508/F311L. In the present study, the authors report a 2-year-old Thai boy, originating from North India, presenting with recurrent episodes of febrile illness, hyponatremia, hypokalemia, and metabolic alkalosis since 4 months of age. He was transferred to our hospital for further investigation. Blood chemistry revealed the following serum electrolytes, sodium 122, potassium 3.69, chloride 79.7, and bicarbonate 33.8 mEq/L, and the following urine electrolytes, sodium < 10, potassium 45.7 and chloride < 10 mEq/L. After intravenous fluid administration, hyponatremia and metabolic alkalosis improved DNA sequencing analysis of his blood demonstrates compound mutation for Delta F508 and F311L in CFTR gene. In conclusion, the authors report a rare case of CF with Delta F508/F311L genotype presented with recurrent hyponatremia and metabolic alkalosis. Awareness of electrolyte abnormalities during febrile illness, proper genetic counseling, and long-term follow up are necessary in this patient.
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Lejeune B, Lorenz I. Ultrasonographic findings in 2 cows with duodenal obstruction. THE CANADIAN VETERINARY JOURNAL = LA REVUE VETERINAIRE CANADIENNE 2008; 49:386-388. [PMID: 18481548 PMCID: PMC2275343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Two cases where clinical findings suggestive of proximal ileus resulting in hypokalemic and hypochloremic alkalosis are presented. Ultrasonographs showed distension of the sigmoid flexure along the ventral border of the liver and between the serosal lamellae of the greater omentum in the flank, allowing exact preoperative obstruction localization.
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