204
6831337819011056112
Bronchiolitis850595012893139210278340410451522561597636674730
Bronchiolitis906855012893139210278340410451522561597636674730
is1670855012872126
an1830855012895165
exudative2030855012897165235305367408446517579
and/or2642855012895165235276346391
productive–30688550128102151222290360422461501572634705
sclerotic9061015012854116157218262334373411472
inflammation14131015012855124171211270381489550591629700768
of22161015012886131
the23831015012856125187
bronchioles,26031015012887134203271333405444516555616670705
leading33441015012855116177247287356428
to9061177012839108
partial10481177012870132179219257318358
or14411177012870117
complete15921177012863133242311352413452515
obstruction.21411177012870138192232278348410450488559627662
Etiology:28401177012886125163234273342412482520
1.9061337012870105
Post–infectious10471337012899169221260329368437484547607648686757825879
-19611337012868
acute20641337012883145215254317
bronchiolitis24131337012891138209277339409448519558596634674727
caused31751337012883145215270333401
by36111337012891162
viruses.9061499012870107155224278342394429
Such137114990128120190253323
bronchiolitis172914990128112159230298361431471542581617657695750
is25141499012882135
more268414990128153224271333
common305014990128105176285393464532
in36171499012884153
children9061659012862132171211278325388456
under13971659012871141211275319
217511659012870
years.18561659012873133194242296330
2.9061821012870105
Inhalational10471821012847115185247287347386425496564627668
–17481821012870
caused18531821012863126196250313381
by22691821012871143
gases,24461821012870130184248300335
dusts.28161821012873143197236289324
3.Drug–induced9061981012870105207254324394462501570640710772836904
–18401981012870
penicillamine,19401981012870132200239300339379417478589627696760793
gold,27651981012870140178249284
amiodarone,30801981012862171209278346408455526595659692
cephalosporins.9062143012862124192262324365434488558630674714783838872
4.9062303012870105
Idiopathic:10472303012865133172243311373413482521583623
a)17572303012881130
combined19212303012881151260329368437501569
with252523030128120160199268
other28282303012889128197261306
diseases31682303012889128182245305361425477
–36802303012891
idiopathic9062465012839108147218286348387456497558
pulmonary14992465012884154195301372440502551622
fibrosis,21522465012861102171217288341381435469
radiation26572465012862123193232295334372443511
alveolitis;32032465012877117186249319358395433473527565
b)9062625012870117
not10572625012871141178
combined12692625012863135242311351420484552
–18572625012871
cryptogenic19632625012863110181247288359429491559598659
bronchiolitis.26572625012871117189257321391429500539575615653709743
5.9062788012870105
Bronchiolitis104727880128184229299367429499540611649687725765819
obliterans190027880128161229270308348411455517587641
–257627880128163
HIV277427880128194241340
infection,315027880128129198245308368407447518586621
aspergillus,9062948012862117186248295366403443481550604639
legionella,15812948012841103173209280348412451489550585
pneumocystis,22022948012871141203273383454514586639679717772807
klebsiella.30452948012871110171239293332395434471533568
Bronchitis8503530012893139210278340410451489527582
Acute90658120128101164234273334
bronchitis12735812012891137209277339409448488525579
manifests188758120128130191261302348411463504557
as24795812012883137
an26515812012883153
inflammation28395812012859126173213272381491552591631702770
of36445812012891135
bronchi38165812012891137207275337407446
without429658120128122161199268340408447
evidence47775812012885155194263327395457521
of53315812012891135
pneumonia9065972012870140202270381452520559620
and156159720128143213283
typically187959720128119190256295358420461499568
affects248059720128143190237301361400453
individuals296959720128120189259298367406475545607648699
without370359720128182222260329401469508
underlying424559720128151221291354399439508545616688
chronic496859720128143213260329397436497
obstructive9066134012870138192233278348410451489560622
pulmonary15616134012875145185291362430492541612
disease22046134012875114169233293347411
(COPD).26486134012851144245324425473507
It3191613401285288
is3313613401284497
characterized34456134012867137199246307369408471515555616680748
by42286134012875147
an44066134012867137
acute45786134012867129199238299
onset49106134012877145199263302
of52456134012875120
a54016134012867
persistent9066294012870132177232271324365428496535
cough,14756294012861133201272340375
with188562940128101141179248
or21676294012870115
without231562940128101141179248320388427
sputum27766294012853123195234303412
production.32216294012870116190258328390429469540608643
As389962940128101156
a40896294012862
self-limiting41866294012853115152195244284322430470508548617689
condition,49086294012861131199269309347385456524559
it906645601283977
typically10176456012840111179218279341381419490
follows15406456012848119158196265366421
a19966456012863
benign20946456012871133201240311379
course,25086456012863134202249305368401
resolving29456456012847109163235274343382451522
spontaneously35006456012856125195263304365435499569637692732803
over43376456012870140202246
146186456012871
to47246456012839110
348686456012870
weeks.497464560128101164226294348383
Chronic9066616012893164210280348387450
Bronchitis13886616012893138210278340410449488526580
is2003661601283690
a21286616012859
progressive22196616012870116186256300364416470510581644
condition.28926616012863133201271311349387458526561
It3489661601284482
develops36026616012870132202264303372440496
over41306616012870140202247
time4411661601283674182245
as46866616012862117
the48376616012836105167
airways50346616012863101147247310382435
suffer9066778012854124171219282326
continual12676778012869139207246286355425487527
irritation1826677801284894140180218279320358429497
and23586778012869139209
damage.26026778012877139248309380442475
Tobacco31206778012886156224286348410482
smoking36356778012861172246314353422494
is4162677801284699
the42966778012847116180
primary45096778012877124162272333380451
cause49956778012869131201256317
of53456778012879123
chronic9066938012862132179248316357418
bronchitis.13596938012897143215283345415454493531587621
In20166938012874141
addition,21926938012889159229268308346417485520
long-term27486938012867136206276323364427471582
exposure33646938012889156226298353422469532
to39296938012866137
air40996938012889128176
pollution,43096938012897167206244313353391462530565
dust,49126938012897167222260294
and52426938012889159229
fumes9067100012847118227288340
in12817100012856125
certain14417100012879142187227288327396
occupational18727100012889149211281351414454492563631693734
settings26387100012873137173211251322392445
can31177100012879141211
also33637100012879120171243
contribute36397100012879150218259305343412482523586
to42587100012856127
chronic44187100012879149195266334375436
bronchitis48897100012887134203271333403444482522575
development.9067261012870132202264303372442551614682723757
chronic169972610128133203249318386425486
bronchitis222072610128141188259327389459500538578631
distinguishes288872610128140179233271309378450518559612682746798
itself372172610128110148203267305349
by410672610128141213
showcasing435072610128125195267366429491545585654729
these511272610128110179243298361
symptoms9067423012854126233302341412521574
for15157423012847118163
a17137423012863
minimum181174230128109147216255365434543
duration23897423012870140186248289327397466
of28907423012872117
330437423012871
months315074230128109178246285354408
over35937423012873143205249
two38777423012840140212
consecutive41227423012864134201258321381451490530601663
years.48187423012873133193240295330