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    hypnatremia Due t Pumnary Tubercusis: Review 200 Cases

    Nemata Jnaidi Jaari1, Mrteza Izadi

    1, Farad Sarrazade

    2, Amir heidari

    3, Reza Ran-

    jbar4, Amin Saburi

    5*

    1 heat Researc Center, Baqiyataa University Medica Sciences, Teran, IR Iran2 Department Interna Medicine, Inectius Ward, Azaipur Educatina Medica Center, Kerman University Medica Sciences, Kerman, IR Iran3 Neprgy and Urgy Researc Center, Baqiyataa University Medica Sciences, Teran, IR Iran

    4 Mecuar Bigy Researc Center, Baqiyataa University Medica Sciences, Teran, IR Iran5 Cemica Injuries Researc Center, Baqiyataa University Medica Sciences, Teran, IR Iran

    * Corresponding author: Amin Saburi, Cemica Injuries Researc Center, Baqiyataa University Medica Sciences, Masadra St, Vanak Sq, Teran, IR

    Iran. Te.: +98-9127376851, Fax: +98-2188600067, E-mai: [email protected]

    A B S T R A C T

    Background: Pumnary Tubercusis (PTB) is ne te cmmn diseases wit ig prevaence mrtaity and mrbidity in devepingcuntries. Varius cmpicatins ave been reprted ang wit PTB. Te subcinica eectryte imbaances are custmary in cases wit PTB.Objectives: Te aim tis study was te evauatin patients wit PTB and ypnatremia.Patients and Methods:We evauated patients wit diagnsis secndary PTB w ave been admitted t Baqiyataa spita, Teran, Iranrm 2005 ti 2010. Te diagnsis PTB was based n te appearance acid ast bacii in sputum smears r sputum cutures, witut anyevidence miiary TB. Demgrapic and abratry caracteristics reative t eectrytes were recrded accrding incusin and excusincriteria.

    Results: Te mean age was 59.22 20.57 years and 91 (45.5%) patients were mae. Te mean serum sdium cncentratin was 134.54 4.95mm/l and mre tan a subjects (51%) ave swn ypnatremia. Te mean age dierence between ypnatremic and eunatremicgrups was statisticay signicant (61.95 versus 56.02 years) (P = 0.047). N signicant reatinsip was und between ypnatremia andgender, anti-TB medicatins and c-mrbidity cnditins.Conclusions: In tis study, an der age was suggested as an imprtant predispsing actr r ypnatremia in patients wit PTB wic adbeen bserved as ess a determinant. We recmmend urter evauatins r ypnatremia in patients presenting wit PTB, particuaryr tse w are der.

    Keywords: Tubercusis; hypnatremia; Causaity

    Cpyrigt 2013, Kwsar Crp.; Pubised by Kwsar Crp.

    Artice type: Researc Artice; Received: 04 Ju 2012, Revised: 28 Aug 2012, Accepted: 10 Sept 2012; DoI: 10.5812/numnty.7091

    Impicatin r eat picy/practice/researc/medica educatin:

    hypnatremia is a cmmn eectryte imbaance wic is presented in many disrders. Tis disturbance can wrsen te prgn-

    sis inpatients w ave been admitted r ter diseases suc as pumnary disease. on te ter and pumnary tubercusis

    is ne te mst imprtant and cmmn ung diseases especiay in deveping cuntries. In tis study we assessed patients wit

    pumnary tubercusis r ypnatremia.

    Pease cite tis paper as:

    Jnaidi Jaari N, Izadi M, Sarra zade F, heidari A, Ranjbar R, Saburi A. hypnatremia Due t Pumnary Tubercusis; Review 200

    Cases. Nepr-Ur Mn.2013;5(1): 687-691. DoI: 10.5812/numnty.7091

    Cpyrigt 2013, Kwsar Crp.; Pubised by Kwsar Crp.Tis is an open Access artice distributed under te terms te Creative Cmmns Attributin license (ttp://creativecmmns.rg/icenses/by/3.0), wic per-mits unrestricted use, distributin, and reprductin in any medium, prvided te rigina wrk is prpery cited.

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    Hyponatremia in Pulmonary TuberculosisJonaidi Jafari N et al.

    Nephro Urol Mon. 2013:5(1)688

    1. Background

    hypnatremia is cnsidered as ne te mst cm-

    mn and imprtant eectryte abnrmaities. hypna-

    tremia must be cnsidered in a seriusy i spitaized

    patients (1). hypnatremia is dened as depetin in teserum sdium (Na) cncentratin t a eve bew 136

    mm/l and severe ypnatremia dened as serum sdi-

    um cncentratin esser tan 115 mm/l wic it can be

    cnsidered as ie-treatening cnditin (2, 3). Te preva-

    ence severe ypnatremia and its nn-severe rm are

    estimated 1-4% and 15-30% inpatients, respectivey (4).

    Usuay, ypnatremia resuts rm water retentin

    secndary t an inabiity t matc water excretin wit

    intravenus r ra water absrptin. Eective circuat-

    ing vume depetin causing nn-smtic reease an-

    tidiuretic rmne (ADh) and te syndrme inappr-

    priate ADh secretin (SIADh) are disrders in wic ADh

    secretin is nt suppressed despite decrease in pasmasmaity. Tese are te tw mst cmmn causes y-

    pnatremia (5).

    Te diagnsis SIADh is estabised upn te excu-

    sin ter ypnatremia etigy. Tis syndrme as

    been reprted in a number cinica cnditins, suc as

    maignancies (pumnary, mediastina and extratracic

    tumrs), centra nervus system disrders (infammat-

    ry r demyeinating diseases, strke and trauma), drugs

    (desmpressin, prstagandin-syntesis inibitrs, pe-

    ntiazines, tricycics and sertnin-reuptake inibi-

    trs) and pumnary diseases (acute respiratry aiure,

    psitive-pressure ventiatin and inectins) (2, 5). PTB is

    ne te rare pumnary inectins wic can induceypnatremia. Tubercusis (TB) is cnsidered as ne

    te cmmn inesses in deveping cuntries suc as

    Iran wic can present wit varius cinica maniesta-

    tins. TB can induce ypnatremia via severa meca-

    nisms cntaining ca invasin t te adrena gands

    (adrena insuciency) (6, 7), ca invasin t yptaa-

    mus r pituitary gand (8, 9), Tubercuar meningitis (10-

    12) and inapprpriate ADh secretin via pumnary in-

    ectin (13-15).

    2. Objectives

    Te aim tis study was t evauate te prevaence ypnatremia in a arge number Iranian patients wit

    PTB.

    3. Patients and Methods

    3.1. Design and Participants

    We ave prspectivey evauated patients wit a diagn-

    sis secndary PTB w were admitted t te inectius

    wards Baqiyataa genera spita, Teran, Iran rm

    marc 2005 ti marc 2010. Demgrapic and abrat-

    ry caracteristics were recrded. Te cnrmatin sec-

    ndary PTB was based n appearance acid ast bacii

    n a sputum smear r Mycbacterium tubercusis n a

    sputum cuture, in te absence radigica eatures

    miiary TB. Te patients wit abnrma menta status,

    any evidence tubercuar meningitis, edema-rming

    cnditins, uncntred ypergycemia, rena insu-

    ciency r aiure, yperipidemia, receiving diuretics r

    any medicatins reated t SIADh r induced vaspressin

    reease were excuded.

    3.2. Assessment and Treatment

    In additin, hIV-psitive patients wit diagnsis hIV

    by enzyme-inked immuneabsrbent assay (ElISA) were

    excuded, wing cunseing and securing written

    inrmed cnsent. Any sdium r cacium (Ca) wast-

    ing cnditin suc as rena diseases was verrued. A

    patients received a reguar spita diet. A patients

    received a typica daiy regimen cmpsed Riampin(R), Isniazid (h), Pyrazinamide (Z) and Etambut (E)

    r te rsttw mnts, wed by Rh r te wing

    4-10 mnts (depending n te prgress te disease

    and treatment respnse based n Who guideine). Si-

    mutaneusy, bd and urine sampes were gatered t

    determine measures eectrytes and smaity. Base-

    ine bd sampes and urine specimens were acquired

    2 t 3 urs ater breakast. Te sampes were cected

    bere any prescriptin intravenus fuids.

    3.3 Statistics

    Data were cected t cmpare te pre and abra-

    try caracteristics PTB patients wit r witut yp-

    natremia. Te data were anayzed by using SPSS stware

    (17t editin) and P vaue ess tan 0.05 was cnsidered

    signicant. Quantitative and quaitative data were re-

    prted using mean standard deviatin (SD) and inre-

    quency (percentage). Ater cecking nrma distributin

    quantitative data, te parametric r nn-parametric

    tests were used. Fr te anaysis quaitative data wit

    nrma distributin, student t-test, ANoVA, and Pearsn

    crreatin and r te abnrma distributed variabes,

    MannWitney U, KruskaWais and spearman crrea-

    tin tests were used.

    4. Results

    Tw undred patients tat were diagnsed and treated

    r active PTB ave been enred. Te mean age was 59

    20 years (in range 13-102 years) and 91 (45.5%) patients

    were maes. Femaes ad iger mean age tan maes (60

    21 versus 57 19) but tis dierence wasnt statisticay

    signicant. Te mean serum Na cncentratin was 134

    4 mm/l. Te emaes mean cncentratin serum Na

    was 134 4.9 vs. te maes mean cncentratin serum

    Na was 134 5 mm/l (P = 0.513).o te grup, 96 (48%)

    te patients ad nrma serum Na, wereas 102 (51%)

    patients ad ypnatremia (47.1% mae vs. 52.9% emae)

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    Hyponatremia in Pulmonary Tuberculosis Jonaidi Jafari N et al.

    689Nephro Urol Mon. 2013:5(1)

    and tw (1%) patients deveped ypernatremia.

    Tere is n signicant reatinsip between gender and

    ypnatremia (P = 0.670). Te mean age dierence be-

    tween ypnatremic and eunatremic grups was statisti-

    cay signicant (61 versus 56 years, respectivey) (P.vaue

    = 0.047). Mrever, tere is n signicant crreatin be-

    tween anti-tubercusis medicatins and ypnatremia

    (P = 0.369). Serum Na cncentratin was enumerated r

    a dierent anti-TB drugs in Table 1 .

    Table 1. Serum Sdium Cncentratin Based n Dse Anti-TB Drugs

    Dosage Usual Dosage, % Max Dosage, %

    Serum Na con-centration

    Less than 135

    meq/L

    135-145 meq/L More than 145

    meq/L

    Less than 135

    meq/L

    135-145 meq/L More than 145

    meq/L

    Isoniazid 21 16.5 0 30 31.5 1

    Rifampin 19 16 0.5 32 32 0.5

    Ethambutol 9.5 11 0 41.5 37 1

    Pyrazinamide 24.5 18.5 0.5 26.5 29.5 0.5

    Te mean crrected serum Ca cncentratin was 8.8

    0.7 mm/l. Te emaes mean serum Ca cncentratinwas 8.9 0.8 vs. te maes mean Ca wic was 8.8 0.6

    (P = 0.441). one undred tirty seven (68.5%) patients ad

    nrma serum Ca cncentratin, wereas 59 (29.5%) pa-

    tients ad ypcacaemia and 4 (2%) patients ad yper-

    cacemia.

    hTN was te mst cmmn c-mrbid cnditin pres-

    ent in 46 patients (23%), wie 42 patients (21%) ad cn-

    tred diabetes meitus, 8 (4%) patients ad migraine

    eadace, 1 patient ad Parkinsn's disease and anter

    patient ad epiepsy. Tere was n signicant reatin-

    sip between c-mrbid cnditins and ypnatremia

    (P = 0.102). Simutaneusy, pneumnia was dcumented

    in 18 patients (9%), wie n patients ad a diagnsis sepsis. hspita mrtaity was dcumented in 13 patients

    (6.5%). N signicant crreatin was und between y-

    pnatremia and mrtaity (P = 0.218). A te patients

    wit ypnatremia became eunatremic ater anti-tuber-

    cusis terapy.

    5. Discussion

    Given te ndings, te prevaence ypnatremia and

    ypcacaemia btained as 51% and 29% wic is cm-

    patibe wit te rmer reprts. Age was te se vari-

    abe wic was dierent between PTB patients wit and

    witut ypnatremia. We und tat ypnatremia wasiger tan expected in nn-tubercuar patients accrd-

    ing t te previus reprts. In previus studies, te preva-

    ence ypnatremia amng inpatients, especiay te

    nes w admitted in respiratry wards, was reprted in

    a varius range (2.48%-40%) (16, 17). Tis issue can be reat-

    ed t te type diseases and age. As reprted in severa

    studies, patients w were admitted in cidren r geri-

    atric wards, admitted in te intensive care unit r cardiac

    care unit, and tse w admitted in te emergency de-

    partment were mre susceptibe r ypnatremia. Fur-

    termre ypnatremia is mre t be bserved in ne-

    pastic, brain, endcrine and pumnary diseases. Te

    incidence severe ypnatremia as been estimated as1.1% in spitaized patients wereas in tat reprt, PTB

    was te mst cmmn underying disease (24%) wic is

    in keeping wit ur ndings (18).

    In 1969, Cung and hubbard ave nted tat neary 11%

    patients wit active TB (pumnary r nn-pumnary)

    are aected wit ypnatremia, and it is apparent tat

    te main cause serum sdium depetin in tese pa-

    tients is SIADh (19). Vrerr et a. as reprted a case wit

    PTB and ypnatremia and und antidiuretic agents in

    tubercuus ung tissues (14). Bryant et a. as suggested

    te syndrme inapprpriate secretin antidiuretic

    rmne r patients wit an inectius pumnary dis-

    ease suc as PTB (20). Scrn et a. reprted tw cases PTB and an abnrma inapprpriate antidiuretic r-

    mne eve as a justier mecanism (15). Cckcrt et a.,

    reprted a 74-year-d wman wit miiary tubercusis

    wic ad cmpicated by severe ypnatremia due t

    SIADh (21). Usaan et a. reprted a case TB w initiay

    presented wit etargy due t ypnatremia evidenty

    resuting rm SIADh (22). Finay, lee reprted a case

    PTB wit reractry ypnatremia due t SIADh (13).

    Atug in tis study we did nt evauate patients r

    etigy ypnatremia, it can be benecia i we cn-

    cisey review causes ypnatremia in patients wit

    PTB; SIADh is a cnsiderabe cmpicatin pum-

    nary inectin, infammatry and nepastic disrders,atug its prevaence and mecanism are pry re-

    garded. SIADh as been dispayed in inectius situatins

    suc as TB. In ne te rst reprts, Weiss et a., reprted

    ypnatremia in resuting rm SIADh in patients wit

    PTB (23). Ten it was decared tat an increased ADh eve

    in te presence ypnatremia in PTB cases is an indi-

    catr r ectpic ADh prductin. Few studies demn-

    strated tat te ADh eve was nt detectabe wing

    u anti-TB terapy (13, 24).

    SIADh was usuay demnstrated in patients wit TB

    and tere are varius causative actrs r SIADh in tu-

    bercusis. SIADh may ccur wing PTB, as we as

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    Hyponatremia in Pulmonary TuberculosisJonaidi Jafari N et al.

    Nephro Urol Mon. 2013:5(1)690

    tubercuar meningitis. Tere are many reprts SIADh

    assciated wit pumnary, miiary and centra nervus

    system-reated TB. Mre tan 60% te patients wit

    tubercuar meningitis may present wit ypnatre-

    mia r SIADh at rst presentatin (25). SIADh must be

    cnsidered in every case wit ypnatremia wit w

    serum smaity cnditin, a nrma acid-base state,

    urine smaity ver 100 mosm/kg, and urine sdium

    cncentratin mre tan 40 meq/l. As, generaized r

    ca inectins are imprtant and unregarded causes

    SIADh. Mutipe inectius diseases are assciated wit

    tis syndrme (26).

    In additin t te disease itse, sme anti-TB drugs can

    as be rund anemia. Nakasita et a. as reprted a case

    SIADh caused by etinamide in a patient wit PTB

    as tey suggested tat anti-TB drugs sud be cnsid-

    ered as te pssibe cause SIADh but te resut tis

    study was tat te incidence ypnatremia in patients

    w received etinamide wit maximum dse was nt

    iger tan tse w received a esser ne (27).

    Besides, nn-tubercuses pneumnia is a very rare

    cause SIADh induced ypnatremia. Cares et a. de-

    scribed a patient w ad bar pneumnia presenting

    wit cnusin due t severe ypnatremia (28). As,

    Rivers et a., expressed a cid wit excessive secretin

    ADh in assciatin wit cmmn pumnary inectins

    (29).

    Endcrine system invvements by TB, as te ter

    mecanism, can induce ypnatremia wic is impr-

    tant t cnsider in patients wit PTB. TB was reveaed t

    invve adrena gands directy (30) and tis invvementead t vert r subcinica adrena insuciency and

    ypnatremia (6). Pituitary gand may as be invved

    by te tubercusis bacii. hyppituitarism as been re-

    prted in 20% cases years ater te treatment tuber-

    cuar meningitis in cidd. Te reasn seemed t be

    tubercusis esins impressing te yptaamus, pitu-

    itary stak and indirecty r directy, te pituitary gand

    itse (8).

    Te ypnatremia due t PTB is usuay mid t mder-

    ate, asymptmatic, and se-imited. SIADh is cmmny

    reversibe wit eective PTB treatment in mst cases (25).

    Terere, it can be verked i te pysician des nt

    give sucient attentin. on te ter and, patientsw aected by ypnatremia were mre ikey t ave

    iger mrtaity. Sarma et a. suggested ypnatremia

    as predictrs devepment and utcme in patients

    wit acute respiratry distress syndrme due t tubercu-

    sis (31).

    Mrever, ter eectryte disturbances suc as y-

    percacemia ave been reprted as ne te mst cm-

    mn eectryte imbaance in 25.7% patients wit PTB

    atug ypnatremia deveped wer prevaence

    (22.15%)(32). Furtermre, te incidence ypnatre-

    mia in patients wit AIDS cmpicating wit TB is iger.

    Smit et a. reveaed tat ypnatremia was discvered

    in 60% AIDS patients wit a diagnsis generaized

    tubercusis, wever a tese patients dissemi-

    nated tubercusis were ny diagnsed ater deat. In

    ur study, we verrued te hIV psitive patients and it

    can be te reasn te dierences between ur ndings

    and ters.

    In te present study, te iger age amng te dem-

    grapic caracteristics was bserved in patients wit PTB

    and ypnatremia tan as previusy been nted. Few

    studies evauated te re age n presenting ypna-

    tremia in patients wit neura deects (33). Te age range

    in mentined reprts was dcumented widespread and

    generay it is impssibe t ceary te re age n y-

    pnatremia in patients wit PTB. In additin, it sud be

    suggested tat ypnatremic patients sud be evau-

    ated r PTB wen an initia investigatin aied t test.

    We wud recmmend tat patients wit PTB (especiay

    der age patients) sud be csey bserved r eectr-

    yte imbaance. We as recmmend urter studies wit

    a greater sampe size mainy cused n te predisps-

    ing actrs eectryte imbaance in patients suering

    rm PTB.

    Acknowledgements

    Te Autrs appreciate very muc a participants and

    teir reatives r teir kind cperatin.

    Authors Contribution

    Jnaidi-Jaari, Izadi, Sarrazade, Ranjbar and Saburi in-

    vved in cncept, idea deveping, study designing, and

    interpreting data. heidari and Saburi gatered te data.

    Jnaidi-Jaari, Sarrazade and Saburi prepared te drat.

    A autrs apprved te na drat.

    Financial Disclosure

    Nne decared.

    Funding/Support

    Tere is n nancia supprt.

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