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Hypomagnesemia 7, renal, with or without dilated cardiomyopathy(HOMG7)

MedGen UID:
1824039
Concept ID:
C5774266
Disease or Syndrome
Synonym: HOMG7
 
Gene (location): RRAGD (6q15)
 
Monarch Initiative: MONDO:0859328
OMIM®: 620152

Definition

Renal hypomagnesemia-7 with or without dilated cardiomyopathy (HOMG7) is characterized primarily by renal salt wasting resulting in hypomagnesemia with secondary effects such as hypokalemia or hypocalcemia. Many patients develop nephrocalcinosis, although renal function is generally well-preserved. The age at onset is highly variable, ranging from infancy to young adulthood. A subset of patients develop severe dilated cardiomyopathy as early as in infancy, which may require heart transplant (Schlingmann et al., 2021). For a discussion of genetic heterogeneity of hypomagnesemia, see 602014. [from OMIM]

Clinical features

From HPO
Nephrocalcinosis
MedGen UID:
10222
Concept ID:
C0027709
Disease or Syndrome
Nephrocalcinosis is the deposition of calcium salts in renal parenchyma.
Polyuria
MedGen UID:
19404
Concept ID:
C0032617
Sign or Symptom
An increased rate of urine production.
Primary dilated cardiomyopathy
MedGen UID:
2880
Concept ID:
C0007193
Disease or Syndrome
Familial dilated cardiomyopathy is a genetic form of heart disease. It occurs when heart (cardiac) muscle becomes thin and weakened in at least one chamber of the heart, causing the open area of the chamber to become enlarged (dilated). As a result, the heart is unable to pump blood as efficiently as usual. To compensate, the heart attempts to increase the amount of blood being pumped through the heart, leading to further thinning and weakening of the cardiac muscle. Over time, this condition results in heart failure.\n\nIt usually takes many years for symptoms of familial dilated cardiomyopathy to cause health problems. They typically begin in mid-adulthood, but can occur at any time from infancy to late adulthood. Signs and symptoms of familial dilated cardiomyopathy can include an irregular heartbeat (arrhythmia), shortness of breath (dyspnea), extreme tiredness (fatigue), fainting episodes (syncope), and swelling of the legs and feet. In some cases, the first sign of the disorder is sudden cardiac death. The severity of the condition varies among affected individuals, even in members of the same family.
Reduced left ventricular ejection fraction
MedGen UID:
868398
Concept ID:
C4022792
Finding
A diminution of the volumetric fraction of blood pumped out of the ventricle with each cardiac cycle.
Elevated left ventricular end-diastolic diameter
MedGen UID:
1815064
Concept ID:
C5706158
Finding
The LV end-diastolic internal diameter was measured from two-dimensional (2D) images in the parasternal long-axis view, timed with mitral valve closure at the level of the mitral valve chordae.
Seizure
MedGen UID:
20693
Concept ID:
C0036572
Sign or Symptom
A seizure is an intermittent abnormality of nervous system physiology characterized by a transient occurrence of signs and/or symptoms due to abnormal excessive or synchronous neuronal activity in the brain.
Tetany
MedGen UID:
11748
Concept ID:
C0039621
Finding
A condition characterized by intermittent involuntary contraction of muscles (spasms) related to hypocalcemia or occasionally magnesium deficiency.
Hypocalcemia
MedGen UID:
5705
Concept ID:
C0020598
Disease or Syndrome
An abnormally decreased calcium concentration in the blood.
Hypokalemia
MedGen UID:
5712
Concept ID:
C0020621
Finding
An abnormally decreased potassium concentration in the blood.
Hyponatremia
MedGen UID:
6984
Concept ID:
C0020625
Finding
An abnormally decreased sodium concentration in the blood.
Hypomagnesemia
MedGen UID:
57481
Concept ID:
C0151723
Disease or Syndrome
An abnormally decreased magnesium concentration in the blood.
Metabolic acidosis
MedGen UID:
65117
Concept ID:
C0220981
Pathologic Function
Metabolic acidosis (MA) is characterized by a fall in blood pH due to a reduction of serum bicarbonate concentration. This can occur as a result of either the accumulation of acids (high anion gap MA) or the loss of bicarbonate from the gastrointestinal tract or the kidney (hyperchloremic MA). By definition, MA is not due to a respirary cause.

Professional guidelines

PubMed

Heymans S, Lakdawala NK, Tschöpe C, Klingel K
Lancet 2023 Sep 16;402(10406):998-1011. doi: 10.1016/S0140-6736(23)01241-2. PMID: 37716772
Arbelo E, Protonotarios A, Gimeno JR, Arbustini E, Barriales-Villa R, Basso C, Bezzina CR, Biagini E, Blom NA, de Boer RA, De Winter T, Elliott PM, Flather M, Garcia-Pavia P, Haugaa KH, Ingles J, Jurcut RO, Klaassen S, Limongelli G, Loeys B, Mogensen J, Olivotto I, Pantazis A, Sharma S, Van Tintelen JP, Ware JS, Kaski JP; ESC Scientific Document Group
Eur Heart J 2023 Oct 1;44(37):3503-3626. doi: 10.1093/eurheartj/ehad194. PMID: 37622657
Lampejo T, Durkin SM, Bhatt N, Guttmann O
Clin Med (Lond) 2021 Sep;21(5):e505-e510. doi: 10.7861/clinmed.2021-0121. PMID: 34507935Free PMC Article

Recent clinical studies

Etiology

Harding D, Chong MHA, Lahoti N, Bigogno CM, Prema R, Mohiddin SA, Marelli-Berg F
J Intern Med 2023 Jan;293(1):23-47. Epub 2022 Aug 27 doi: 10.1111/joim.13556. PMID: 36030368
Merlo M, Cannatà A, Gobbo M, Stolfo D, Elliott PM, Sinagra G
Eur J Heart Fail 2018 Feb;20(2):228-239. Epub 2017 Dec 22 doi: 10.1002/ejhf.1103. PMID: 29271570
McNally EM, Mestroni L
Circ Res 2017 Sep 15;121(7):731-748. doi: 10.1161/CIRCRESAHA.116.309396. PMID: 28912180Free PMC Article
Weintraub RG, Semsarian C, Macdonald P
Lancet 2017 Jul 22;390(10092):400-414. Epub 2017 Feb 10 doi: 10.1016/S0140-6736(16)31713-5. PMID: 28190577
Japp AG, Gulati A, Cook SA, Cowie MR, Prasad SK
J Am Coll Cardiol 2016 Jun 28;67(25):2996-3010. doi: 10.1016/j.jacc.2016.03.590. PMID: 27339497

Diagnosis

Shoureshi P, Tan AY, Koneru J, Ellenbogen KA, Kaszala K, Huizar JF
J Am Coll Cardiol 2024 Jun 4;83(22):2214-2232. doi: 10.1016/j.jacc.2024.03.416. PMID: 38811098
Heymans S, Lakdawala NK, Tschöpe C, Klingel K
Lancet 2023 Sep 16;402(10406):998-1011. doi: 10.1016/S0140-6736(23)01241-2. PMID: 37716772
McNally EM, Mestroni L
Circ Res 2017 Sep 15;121(7):731-748. doi: 10.1161/CIRCRESAHA.116.309396. PMID: 28912180Free PMC Article
Weintraub RG, Semsarian C, Macdonald P
Lancet 2017 Jul 22;390(10092):400-414. Epub 2017 Feb 10 doi: 10.1016/S0140-6736(16)31713-5. PMID: 28190577
Japp AG, Gulati A, Cook SA, Cowie MR, Prasad SK
J Am Coll Cardiol 2016 Jun 28;67(25):2996-3010. doi: 10.1016/j.jacc.2016.03.590. PMID: 27339497

Therapy

Harding D, Chong MHA, Lahoti N, Bigogno CM, Prema R, Mohiddin SA, Marelli-Berg F
J Intern Med 2023 Jan;293(1):23-47. Epub 2022 Aug 27 doi: 10.1111/joim.13556. PMID: 36030368
Diaz-Navarro R, Urrútia G, Cleland JG, Poloni D, Villagran F, Acosta-Dighero R, Bangdiwala SI, Rada G, Madrid E
Cochrane Database Syst Rev 2021 Jul 21;7(7):CD013433. doi: 10.1002/14651858.CD013433.pub2. PMID: 34286511Free PMC Article
Bonnet D, Berger F, Jokinen E, Kantor PF, Daubeney PEF
J Am Coll Cardiol 2017 Sep 5;70(10):1262-1272. doi: 10.1016/j.jacc.2017.07.725. PMID: 28859790
Weintraub RG, Semsarian C, Macdonald P
Lancet 2017 Jul 22;390(10092):400-414. Epub 2017 Feb 10 doi: 10.1016/S0140-6736(16)31713-5. PMID: 28190577
Wijetunga M, Strickberger SA; Amiodarone Versus Implantable Defibrillator Randomized Trial
Card Electrophysiol Rev 2003 Dec;7(4):452-6. doi: 10.1023/B:CEPR.0000023158.52511.76. PMID: 15071274

Prognosis

Li X, Zhang X, Zeng Z, Mai W, Peng Z, Li B, Hong W, Liu Y, Shu F, Tang J, Xu L, Tan N, Ma J, Jiang L
J Cardiovasc Med (Hagerstown) 2023 Oct 1;24(10):752-757. Epub 2023 Aug 4 doi: 10.2459/JCM.0000000000001530. PMID: 37577864Free PMC Article
Zuin M, Rigatelli G, Porcari A, Merlo M, Bilato C, Roncon L, Sinagra G
J Cardiovasc Med (Hagerstown) 2023 Aug 1;24(8):530-536. Epub 2023 Jun 26 doi: 10.2459/JCM.0000000000001512. PMID: 37409598
Verdonschot JAJ, Hazebroek MR, Krapels IPC, Henkens MTHM, Raafs A, Wang P, Merken JJ, Claes GRF, Vanhoutte EK, van den Wijngaard A, Heymans SRB, Brunner HG
Circ Genom Precis Med 2020 Oct;13(5):476-487. Epub 2020 Sep 3 doi: 10.1161/CIRCGEN.120.003031. PMID: 32880476
Reichart D, Magnussen C, Zeller T, Blankenberg S
J Intern Med 2019 Oct;286(4):362-372. Epub 2019 Jul 29 doi: 10.1111/joim.12944. PMID: 31132311
Halliday BP, Gulati A, Ali A, Newsome S, Lota A, Tayal U, Vassiliou VS, Arzanauskaite M, Izgi C, Krishnathasan K, Singhal A, Chiew K, Gregson J, Frenneaux MP, Cook SA, Pennell DJ, Collins P, Cleland JGF, Prasad SK
Eur J Heart Fail 2018 Oct;20(10):1392-1400. Epub 2018 Jun 3 doi: 10.1002/ejhf.1216. PMID: 29862606Free PMC Article

Clinical prediction guides

de Frutos F, Ochoa JP, Fernández AI, Gallego-Delgado M, Navarro-Peñalver M, Casas G, Basurte MT, Larrañaga-Moreira JM, Mogollón MV, Robles-Mezcua A, García-Granja PE, Climent V, Palomino-Doza J, García-Álvarez A, Brion M, Brugada R, Jiménez-Jáimez J, Bayes-Genis A, Ripoll-Vera T, Peña-Peña ML, Rodríguez-Palomares JF, Gonzalez-Carrillo J, Villacorta E, Espinosa MA, Garcia-Pavia P, Mirelis JG
Eur Heart J Cardiovasc Imaging 2023 Dec 21;25(1):75-85. doi: 10.1093/ehjci/jead184. PMID: 37562008Free PMC Article
Marian AJ, Braunwald E
Circ Res 2017 Sep 15;121(7):749-770. doi: 10.1161/CIRCRESAHA.117.311059. PMID: 28912181Free PMC Article
McNally EM, Mestroni L
Circ Res 2017 Sep 15;121(7):731-748. doi: 10.1161/CIRCRESAHA.116.309396. PMID: 28912180Free PMC Article
Japp AG, Gulati A, Cook SA, Cowie MR, Prasad SK
J Am Coll Cardiol 2016 Jun 28;67(25):2996-3010. doi: 10.1016/j.jacc.2016.03.590. PMID: 27339497
Fein FS, Sonnenblick EH
Cardiovasc Drugs Ther 1994 Feb;8(1):65-73. doi: 10.1007/BF00877091. PMID: 8086330

Recent systematic reviews

Manja V, Nrusimha A, Gao Y, Sheikh A, McGovern M, Heidenreich PA, Sandhu ATS, Asch S
Heart 2023 Jan 11;109(3):168-177. doi: 10.1136/heartjnl-2022-321610. PMID: 36456204
D'Ascenzi F, Valentini F, Pistoresi S, Frascaro F, Piu P, Cavigli L, Valente S, Focardi M, Cameli M, Bonifazi M, Metra M, Mondillo S
Trends Cardiovasc Med 2022 Jul;32(5):299-308. Epub 2021 Jun 22 doi: 10.1016/j.tcm.2021.06.001. PMID: 34166791
Tripathi A, Khan MS, Khan AR, Vaughn VM, Bolli R
Stem Cells Transl Med 2021 Oct;10(10):1394-1405. Epub 2021 Aug 4 doi: 10.1002/sctm.21-0094. PMID: 34346555Free PMC Article
Bian RT, Wang ZT, Li WY
Medicine (Baltimore) 2021 Jul 2;100(26):e26475. doi: 10.1097/MD.0000000000026475. PMID: 34190171Free PMC Article
Petretta M, Pirozzi F, Sasso L, Paglia A, Bonaduce D
Am J Cardiol 2011 Oct 15;108(8):1171-6. Epub 2011 Jul 26 doi: 10.1016/j.amjcard.2011.06.022. PMID: 21798502

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