2016
DOI: 10.1155/2016/2407607
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Hyperemesis Gravidarum in Undiagnosed Gitelman’s Syndrome

Abstract: Introduction. Gitelman's syndrome (GS) is an autosomal recessive inherited defect in the thiazide-sensitive sodium-chloride cotransporter (NCCT) in the renal distal convoluted tubule. Physiologic changes of pregnancy promote renal potassium wasting, but serum potassium levels are kept in the physiologic range by increased levels of progesterone, which resist kaliuresis. In the presence of GS, this compensatory mechanism is easily overwhelmed, resulting in profound hypokalemia. We present a case of an 18-year-o… Show more

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Cited by 4 publications
(7 citation statements)
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“…The concentration of (K + ) in the serum is a balance among intake, excretion, and distribution between the extra-and intracellular spaces (32) . A patient with Hyperemesis gravidarum (HG) frequently vomits gastric juice and, thus, the loss of hydrogen ions, sodium, chloride, and water in gastric contents leads to chloride-sensitive metabolic alkalosis, dehydration, and extracellular fluid (ECF) volume reduction (33) causing elevated activity of the renin-angiotensin-aldosterone system (RAAS) (33) . This activated RAAS, in turn, increases the urinary excretion of potassium, compounding the hypokalaemia (34) .…”
Section: Discussionmentioning
confidence: 99%
“…The concentration of (K + ) in the serum is a balance among intake, excretion, and distribution between the extra-and intracellular spaces (32) . A patient with Hyperemesis gravidarum (HG) frequently vomits gastric juice and, thus, the loss of hydrogen ions, sodium, chloride, and water in gastric contents leads to chloride-sensitive metabolic alkalosis, dehydration, and extracellular fluid (ECF) volume reduction (33) causing elevated activity of the renin-angiotensin-aldosterone system (RAAS) (33) . This activated RAAS, in turn, increases the urinary excretion of potassium, compounding the hypokalaemia (34) .…”
Section: Discussionmentioning
confidence: 99%
“…A case of maternal cardiac arrest second to profound hypokalaemia in a patient with HG presents a unique opportunity to discuss the potential implications of this common disorder. A patient with HG frequently vomits gastric juice and, thus, the loss of hydrogen ions, sodium, chloride, and water in gastric contents leads to chloride-sensitive metabolic alkalosis, dehydration, and extracellular fluid (ECF) volume reduction [ 5 ]. Our patient had lost approximately 9% in body weight and likely was volume deplete, causing elevated activity of the renin-angiotensin-aldosterone system (RAAS) [ 5 ].…”
Section: Discussionmentioning
confidence: 99%
“…A patient with HG frequently vomits gastric juice and, thus, the loss of hydrogen ions, sodium, chloride, and water in gastric contents leads to chloride-sensitive metabolic alkalosis, dehydration, and extracellular fluid (ECF) volume reduction [ 5 ]. Our patient had lost approximately 9% in body weight and likely was volume deplete, causing elevated activity of the renin-angiotensin-aldosterone system (RAAS) [ 5 ]. This activated RAAS, in turn, increases the urinary excretion of potassium, compounding the hypokalaemia [ 6 ].…”
Section: Discussionmentioning
confidence: 99%
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“…Potassium homeostasis typically remains normal in pregnancy despite multiple physiologic changes that promote renal potassium wasting: volume expansion, increased renal blood flow, increased glomerular filtration rate (GFR), elevation of cortisol levels and activation of the renin-angiotensin-aldosterone (RAS) axis. Serum potassium levels are maintained at physiologic levels by increased levels of progesterone, which resist kaliuresis [5]. This compensatory mechanism can be easily overwhelmed by maternal conditions such as gastrointestinal disorders, alcoholism, malnutrition, diabetes mellitus, and tubulointerstitial disorders and can lead to maternal hypokalemia.…”
mentioning
confidence: 99%