Endoscopic third ventriculostomy

Endoscopic third ventriculostomy
SpecialtyNeurosurgery

Endoscopic third ventriculostomy (ETV) is a surgical procedure for treatment of hydrocephalus in which an opening is created in the floor of the third ventricle using an endoscope placed within the ventricular system through a burr hole. This allows the cerebrospinal fluid to flow directly to the basal cisterns, bypassing the obstruction. Specifically, the opening is created in the translucent tuber cinereum on the third ventricular floor.[1]

Medical uses

The ETV procedure is used as an alternative to a cerebral shunt[2] mainly to treat certain forms of noncommunicating obstructive hydrocephalus (such as aqueductal stenosis), but since the ETV was introduced as an accepted treatment modality the range of etiologies for which it is used has grown significantly. Whereas at first it was almost exclusively performed in patients with noncommunicating obstructive hydrocephalus (e.g. aqueductal stenosis or intracerebral tumor), in the present day patients with communicating obstructive hydrocephalus (e.g. post intracranial hemorrhage or post intracranial infection) also may be eligible for treatment by means of ETV.[citation needed]

Complications

A major advantage of performing an endoscopic third ventriculostomy over placement of a cerebrospinal fluid shunt is the absence of an implanted foreign body. A shunt has risk of infection and failure for which subsequent surgery is needed. Complications of ETV include hemorrhage (the most severe being due to basilar artery rupture), injury to neural structures (e.g. hypothalamus, pituitary gland or fornix of the brain), and late sudden deterioration.[3] Infection, hematoma, and cerebrospinal fluid leaks may present in the direct postoperative period.

Failure of treatment

Failure of the ETV occurs. This can be due to occlusion of the ventriculostomy (e.g. closure of the ventriculostomy, formation of subarachnoid membranes in the pontine cistern or other mechanisms). Although 60 - 90% of failures occur in the first few months after treatment, long-term failure also occurs (failures occurring after 7 years have been reported).[4] In a very small subgroup of patients a complication of ETV can be rapid late deterioration.[5] The mechanism is not clear.

Alternative treatment

When it is not possible to perform an ETV for different reasons, an alternative treatment is opening the lamina terminalis anterior to the third ventricle.[6] The effectiveness of this approach is not certain.[7]

The surgical treatment options for hydrocephalus are, as previously mentioned, implantation of a cerebral shunt and ETV. Especially in the youngest age group (younger than two years of age) it remains uncertain what is the superior treatment modality. Currently, a large international, multicenter study is conducted to address this issue. Patients under the age of two, diagnosed with aqueductal stenosis without a history of preterm birth or other associated brain anomalies are being included (International Infant Hydrocephalus Study).[8][9]

Combined with choroid plexus cauterization

There is a discussion regarding the additional benefit of combining endoscopic third ventriculostomy with choroid plexus cauterization. This combined procedure is referred by the abbreviation "ETV/CPC" and has also been called the "Warf Procedure"[10] after Dr. Benjamin Warf. There have been research studies published about the experience of authors with this procedure. The lion's share of the data that show favorable results is reported on patients in Africa.[11] More recent studies from research groups in Western countries also show that the combination of ETV with choroid plexus cauterization seems to be effective, safe, and durable,[12] and that predictions for success are similar to those of ETV alone.[13] The degree of choroid plexus cauterization in infants might be dependent on the experience of the neurosurgeon (learning curve) and thus surgeons training might improve results.[14] The ETV/CPC procedure is now being performed in a number of hospitals in US and Canadian cities, including Seattle, Washington; Houston, Texas; Calgary, Alberta; Toronto, Ontario; Salt Lake City, Utah; and Boston, Massachusetts.[15]

Prediction of ETV success

The chances of success of treatment of a pediatric patient can be calculated using the ETV success score (ETVSS).[16][17][18] The ETVSS is derived from patient age, etiology of hydrocephalus and history of previous cerebrospinal fluid shunt (e.g. ventriculo-peritoneal shunt). The percentage probability of ETV success = Age score + Etiology score + Previous shunt score. A two years old patient with hydrocephalus due to aqueductal stenosis, without previous shunt would have an 80% chance of success (40 for age + 30 for etiology + 10 for no previous shunt = 80).

ETVSS table[16]

Score Age Etiology Previous Shunt
0 < 1 month Post-infectious Previous shunt
10 1 month to < 6 months No previous shunt
20 Myelomeningocele, intraventricular hemorrhage, non-tectal brain tumor
30 6 months to < 1 year Aqueductal stenosis, tectal brain tumor, other etiology
40 1 year to < 10 years
50 ≥ 10 years

The ETVSS was derived and validated without the use of adult data and it has inadequate discriminative ability in mixed adult and pediatric populations.[19]

Second ETV

After a patient gets readmitted with recurrent clinical and radiological symptomatology of hydrocephalus, it is unclear what the next step in treatment should be. Implantation of a cerebrospinal fluid shunt or repeat ETV. Data suggest that a second ETV might be worthwhile if implantation of cerebrospinal fluid shunt can be avoided.[20][21]

Training ETV

In most countries and neurosurgical centres, the ETV procedure is part of the basic neurosurgery training program. For the sake of teaching and practicing, various simulation models have been developed. Virtual reality simulators,[22] and synthetic simulators.[23][24] This allows neurosurgical trainees to practice skills in a low-risk environment. Educators can select either a virtual reality simulator or a physical model for the training of residents, the selection should be based on educational objectives. Where training focused on anatomy and using anatomical landmarks for decision making may better be aided with virtual reality model, the focus on familiarizing the resident with endoscopic equipment and developing manual dexterity may be better learned on a physical model.[25] The technical skill and competency of a trainee can be evaluated using the Neuro-Endoscopic Ventriculostomy Assessment Tool (NEVAT).[26]

References

  1. ^ Kahle, Kristopher T; Kulkarni, Abhaya V; Limbrick, David D; Warf, Benjamin C (2016). "Hydrocephalus in children". The Lancet. 387 (10020): 788–99. doi:10.1016/s0140-6736(15)60694-8. PMID 26256071. S2CID 27947722.
  2. ^ Hydrocephalus and Treatment: Shunts and Endoscopic Third Ventriculostomy, AboutKidsHealth.ca
  3. ^ Bouras, T.; Sgouros, S. (2013). "Complications of endoscopic third ventriculostomy". Journal of Neurosurgery. 79 (2 Supple): e9–12. doi:10.1016/j.wneu.2012.02.014. PMID 22381818.
  4. ^ Vulcu, Sonja; Eickele, Leonie; Cinalli, Giuseppe; Wagner, Wolfgang; Oertel, Joachim (2015-07-31). "Long-term results of endoscopic third ventriculostomy: an outcome analysis". Journal of Neurosurgery. 123 (6): 1456–1462. doi:10.3171/2014.11.jns14414. PMID 26230473.
  5. ^ Drake, J.; Chumas, P.; Kestle, J.; Pierre-Kahn, A.; Vinchon, M.; Brown, J.; Pollack, I.F.; Arai, H. (2006). "Late rapid deterioration after endoscopic third ventriculostomy: additional cases and review of the literature". Journal of Neurosurgery. 105 (2 Supple): 118–26. doi:10.3171/ped.2006.105.2.118. PMID 16922073. S2CID 41357365.
  6. ^ Oertel, Joachim M. K.; Vulcu, Sonja; Schroeder, Henry W. S.; Konerding, Moritz A.; Wagner, Wolfgang; Gaab, Michael R. (2010). "Endoscopic transventricular third ventriculostomy through the lamina terminalis". Journal of Neurosurgery. 113 (6): 1261–9. doi:10.3171/2010.6.JNS09491. PMID 20707616. S2CID 9327180.
  7. ^ Komotar, Ricardo J.; Hahn, David K.; Kim, Grace H.; Starke, Robert M.; Garrett, Matthew C.; Merkow, Maxwell B.; Otten, Marc L.; Sciacca, Robert R.; Connolly, E. Sander (2009). "Efficacy of lamina terminalis fenestration in reducing shunt-dependent hydrocephalus following aneurysmal subarachnoid hemorrhage: A systematic review". Journal of Neurosurgery. 111 (1): 147–54. doi:10.3171/2009.1.JNS0821. PMID 19284236. S2CID 28475913.
  8. ^ Sgouros, S.; Kulkharni, A. V.; Constantini, S. (2005-10-15). "The international infant hydrocephalus study: concept and rational". Child's Nervous System. 22 (4): 338–345. doi:10.1007/s00381-005-1253-y. ISSN 0256-7040. PMID 16228238. S2CID 25533719.
  9. ^ Constantini, S.; Sgouros, S.; Kulkarni, A. (2013). "Neuroendoscopy in the youngest age group". World Neurosurgery. 79 (2 Supple): S23.e1–11. doi:10.1016/j.wneu.2012.02.003. PMID 22381849.
  10. ^ "Neurosurgeons challenged to eliminate all infant deaths from hydrocephalus". EurekAlert. Retrieved 14 January 2016.
  11. ^ Warf, B.C.; Tracy, S.; Mugamba, J. (2012). "Long-term outcome for endoscopic third ventriculostomy alone or in combination with choroid plexus cauterization for congenital aqueductal stenosis in African infants". Journal of Neurosurgery. Pediatrics. 10 (2): 108–11. doi:10.3171/2012.4.PEDS1253. PMID 22747094.
  12. ^ Stone, S.S.; Warf, B.C. (2014). "Combined endoscopic third ventriculostomy and choroid plexus cauterization as primary treatment for infant hydrocephalus: a prospective North American series". Journal of Neurosurgery. Pediatrics. 14 (5): 439–46. doi:10.3171/2014.7.PEDS14152. PMID 25171723.
  13. ^ Riva-Cambrin, Jay. "ETV+CPC Success and Evolving Indications over Time: A Prospective HCRN Study". Hydrocephalus Clinical Research Network. Retrieved 7 March 2016.
  14. ^ Kulkarni, A.V.; Riva-Cambrin, J.; Browd, S.R.; Drake, J.M.; Holubkov, R.; Kestle, J.R.; Limbrick, D.D.; Rozzelle, C.J.; Simon, T.D.; Tamber, M.S.; Wellons, J.C.3rd.; Whitehead, W.E.; Hydrocephalus Clinical Research Network. (2014). "Endoscopic third ventriculostomy and choroid plexus cauterization in infants with hydrocephalus: a retrospective Hydrocephalus Clinical Research Network study". Journal of Neurosurgery. Pediatrics. 14 (3): 224–9. doi:10.3171/2014.6.PEDS13492. PMID 24995823.{{cite journal}}: CS1 maint: numeric names: authors list (link)
  15. ^ Ruparell, Asha. "New neurosurgery saves lives in Calgary by treating hydrocephalus, 'water in the brain'". Global News. Retrieved 25 May 2016.
  16. ^ a b Kulkarni, A.V.; Drake, J.M.; Mallucci, C.L.; Sgouros, S.; Roth, J.; Constantini, S.; Canadian Pediatric Neurosurgery Study Group (2009). "Endoscopic third ventriculostomy in the treatment of childhood hydrocephalus". Journal of Pediatrics. 155 (2): 254–9. doi:10.1016/j.jpeds.2009.02.048. PMID 19446842.
  17. ^ Durnford, Andrew J.; Kirkham, Fenella J.; Mathad, Nijaguna; Sparrow, Owen C. E. (2011-11-01). "Endoscopic third ventriculostomy in the treatment of childhood hydrocephalus: validation of a success score that predicts long-term outcome". Journal of Neurosurgery: Pediatrics. 8 (5): 489–493. doi:10.3171/2011.8.PEDS1166. ISSN 1933-0707. PMID 22044375.
  18. ^ Breimer, G. E.; Sival, D. A.; Brusse-Keizer, M. G. J.; Hoving, E. W. (2013-05-05). "An external validation of the ETVSS for both short-term and long-term predictive adequacy in 104 pediatric patients". Child's Nervous System. 29 (8): 1305–1311. doi:10.1007/s00381-013-2122-8. ISSN 0256-7040. PMID 23644629. S2CID 24475766.
  19. ^ Labidi, M.; Lavoie, P.; Lapointe, G.; Obaid, D.; Weil, A.G.; Bojanowski, M.W.; Turmel, A. (2015-07-24). "Predicting success of endoscopic third ventriculostomy: validation of the ETV Success Score in a mixed population of adult and pediatric patients". Journal of Neurosurgery. 123 (6): 1447–1455. doi:10.3171/2014.12.JNS141240. PMID 26207604.
  20. ^ Peretta, P.; Cinalli, G.; Spennato, P.; Ragazzi, P.; Rugierro, C.; Aliberti, F.; Carlino, C.; Cianciulli, E. (2009). "Long-term results of a second endoscopic third ventriculostomy in children: retrospective analysis of 40 cases". Neurosurgery. 65 (3): 539–47. doi:10.1227/01.NEU.0000350228.08523.D1. PMID 19687699. S2CID 22505364.
  21. ^ Marano, Paul J.; Stone, Scellig S. D.; Mugamba, John; Ssenyonga, Peter; Warf, Ezra B.; Warf, Benjamin C. (2015-02-06). "Reopening of an obstructed third ventriculostomy: long-term success and factors affecting outcome in 215 infants". Journal of Neurosurgery: Pediatrics. 15 (4): 399–405. doi:10.3171/2014.10.peds14250. PMID 25658247.
  22. ^ Choudhury, N.; Gelinas-Phaneuf, F.; Delorme, S.; Del Maestro, R. (2013). "Fundamentals of neurosurgery: virtual reality tasks for training and evaluation of technical skills". World Neurosurgery. 80 (5): e9–19. doi:10.1016/j.wneu.2012.08.022. PMID 23178917. S2CID 3028199.
  23. ^ Breimer, G.E.; Bodani, V.; Looi, T.; Drake, J.M. (2015). "Design and evaluation of a new synthetic brain simulator for endoscopic third ventriculostomy". Journal of Neurosurgery. Pediatrics. 15 (1): 82–8. doi:10.3171/2014.9.PEDS1447. PMID 25360853. S2CID 10586172.
  24. ^ Zymberg, S.; Vaz-Guimaraes Filho, F.; Lyra, M. (2010). "Neuroendoscopic training: presentation of a new real simulator". Minimally Invasive Neurosurgery. 53 (1): 44–6. doi:10.1055/s-0029-1246169. PMID 20376746. S2CID 37521372.
  25. ^ Breimer, Gerben E.; Haji, Faizal A.; Bodani, Vivek; Cunningham, Melissa S.; Lopez-Rios, Adriana-Lucia; Okrainec, Allan; Drake, James M. (June 2016). "Simulation-based Education for Endoscopic Third Ventriculostomy". Operative Neurosurgery. 13 (1): 89–95. doi:10.1227/NEU.0000000000001317. PMID 28931258.
  26. ^ Breimer, Gerben E.; Haji, Faizal A.; Hoving, Eelco W.; Drake, James M. (2015-05-01). "Development and content validation of performance assessments for endoscopic third ventriculostomy". Child's Nervous System. 31 (8): 1247–1259. doi:10.1007/s00381-015-2716-4. ISSN 0256-7040. PMID 25930722. S2CID 24043065.

Read other articles:

Penularan penyakit

Animasi yang mengilustrasikan penyebaran penyakit menular. Dalam kedokteran, kesehatan masyarakat, dan biologi, penularan atau transmisi adalah perpindahan patogen yang menyebabkan penyakit menular dari individu atau kelompok inang yang terinfeksi ke individu atau kelompok tertentu lainnya. Perpindahan ini memungkinkan suatu pernyakit tersebar secara luas. Proses perpindahan patogen dapat terjadi dengan berbagai cara, baik melalui penularan langsung ketika individu terinfeksi bertemu dengan i...

 

 

Marcello Mastroianni

Marcello MastroianniOMRIMastroianni pada tahun 1990LahirMarcello Vincenzo Domenico Mastroianni(1924-09-28)28 September 1924Fontana Liri, Lazio, ItaliaMeninggal19 Desember 1996(1996-12-19) (umur 72)Paris, PrancisPekerjaanAktorTahun aktif1938–1996Suami/istriFlora Carabella ​ ​(m. 1950; berpisah 1964)​PasanganFaye Dunaway (1968–1970)Catherine Deneuve (1970–1974)Anna Maria Tatò (1976–1996, ia wafat)Anak2, termasuk Chiara Marcello...

 

 

جيوفاني لوديتي

جيوفاني لوديتي (بالإيطالية: Giovanni Lodetti)‏  معلومات شخصية الميلاد 10 أغسطس 1942   كاسيل لوراني  الوفاة 22 سبتمبر 2023 (81 سنة) [1]  ميلانو  الطول 170 سنتيمتر  مركز اللعب لاعب وسط  الجنسية إيطاليا  المسيرة الاحترافية  سنواتفريقمبارياتأهداف1961–1970 إيه سي ميلان ...

Strachotice

Cet article est une ébauche concernant une localité tchèque. Vous pouvez partager vos connaissances en l’améliorant (comment ?) selon les recommandations des projets correspondants. Strachotice L'église Saint-Georges. Administration Pays Tchéquie Région Moravie-du-Sud District Znojmo Région historique Moravie Maire Luděk Müller Code postal 671 29 Démographie Population 1 015 hab. (2020) Densité 50 hab./km2 Géographie Coordonnées 48° 47′ 44″&...

 

 

Nathalie Tauziat

Nathalie Tauziat (Nathalie Paulerena) Nathalie Tauziat (à gauche) avec Conchita Martínez, lors du tournoi vétéran de Wimbledon en 2010. Carrière professionnelle 1984[1] – 2003 Pays France Naissance 17 octobre 1967 (56 ans)Bangui Taille 1,65 m (5′ 5″) Prise de raquette Droitière, revers à une main Entraîneur Régis de Camaret Gains en tournois 6 650 093 $ Palmarès En simple Titres 8 Finales perdues 14 Meilleur classement 3e (08/05/2000) En double T...

 

 

Aurélia Beigneux

French politician Aurélia Beigneux in 2014. Aurélia Beigneux (born 2 June 1980), is a French politician. Biography Born on 2 June 1980, she is a director of Epinorpa, a company founded in 2002.[1] Assistant for Social Affairs at the Town Hall of Hénin-Beaumont,[2] she was in fourteenth position on the list of the National Rally for the 2019 European elections and elected.[3][4] Beigneux has been targeted in a litigation case by the RSA CAF, after a distortio...

Astropulse

BOINC based volunteer computing SETI@home subproject AstropulseSETI@home Astropulse screensaverDeveloper(s)University of California, BerkeleyInitial releaseJuly 2008 (public release)PlatformCross-platformAvailable inEnglishTypeVolunteer computingLicenseGNU GPL[1]Websitesetiathome.ssl.berkeley.edu Free and open-source software portal Astropulse is a volunteer computing project to search for primordial black holes, pulsars, and extraterrestrial intelligence (ETI). Volunteer resources ar...

 

 

خاليدو كوليبالي

خاليدو كوليبالي (بالفرنسية: Kalidou Koulibaly)‏    معلومات شخصية الميلاد 20 يونيو 1991 (33 سنة)[1]  سينت ديه دي فوج  الطول 188 سنتيمتر[2]  مركز اللعب قلب الدفاع  الجنسية السنغال فرنسا  المسيرة الاحترافية  سنواتفريقمبارياتأهداف2009–2011 متز 31 (2)2010–2012 متز 41 (1)2012–2...

 

 

العلاقات الدنماركية الشمال مقدونية

العلاقات الدنماركية الشمال مقدونية الدنمارك شمال مقدونيا   الدنمارك   شمال مقدونيا تعديل مصدري - تعديل   العلاقات الدنماركية الشمال مقدونية هي العلاقات الثنائية التي تجمع بين الدنمارك وشمال مقدونيا.[1][2][3][4][5] مقارنة بين البلدين هذه مقارن�...

豪栄道豪太郎

豪栄道 豪太郎 場所入りする豪栄道基礎情報四股名 澤井 豪太郎→豪栄道 豪太郎本名 澤井 豪太郎愛称 ゴウタロウ、豪ちゃん、GAD[1][2]生年月日 (1986-04-06) 1986年4月6日（38歳）出身 大阪府寝屋川市身長 183cm体重 160kgBMI 47.26所属部屋 境川部屋得意技 右四つ・出し投げ・切り返し・外掛け・首投げ・右下手投げ成績現在の番付 引退最高位 東大関生涯戦歴 696勝493敗...

 

 

Pomni

Artikel ini tidak memiliki referensi atau sumber tepercaya sehingga isinya tidak bisa dipastikan. Tolong bantu perbaiki artikel ini dengan menambahkan referensi yang layak. Tulisan tanpa sumber dapat dipertanyakan dan dihapus sewaktu-waktu.Cari sumber: Pomni – berita · surat kabar · buku · cendekiawan · JSTOR Lokasi kota Pomni di pulau Anjouan Pomni adalah kota yang terletak di pulau Anjouan di Komoro. Koordinat: 12°17′S 44°25′E / ...

 

 

Восстания в еврейских гетто

Повстанцы вильнюсского гетто Восста́ния в евре́йских ге́тто — акции открытого вооружённого сопротивления нацистам в гетто оккупированных стран Европы и СССР в период Второй мировой войны. В ряде гетто существовали подпольные организации, в некоторых из них удавало...

Railway electrification

Conversion of railways to use electricity for propulsion The Mantes-la-Jolie–Cherbourg railway in France connects Grand Paris and Normandy, and is electrified using overhead lines at 25 kV AC 50 HzThe South Eastern Main Line in England connects the London metropolitan area with the Strait of Dover, and is electrified using third rail at 750 V DC Railway electrification is the use of electric power for the propulsion of rail transport. Electric railways use either electric locomotives (hauli...

 

 

ثقافة كوريا

ثقافة كوريامعلومات عامةالمنطقة كوريا القارة آسيا فرع من ثقافة آسيا مقالات ذات علاقةالتاريخ تاريخ كورياتعديل - تعديل مصدري - تعديل ويكي بيانات ثقافة كوريا الشعب سكان كوريا الجنوبية / التركيبة السكانية لكوريا الشمالية الشتات  [لغات أخرى]‏ قانون الجنسية الكورية ال...

 

 

Rudy Hatfield

Filipino-American basketball player This biography of a living person needs additional citations for verification. Please help by adding reliable sources. Contentious material about living persons that is unsourced or poorly sourced must be removed immediately from the article and its talk page, especially if potentially libelous.Find sources: Rudy Hatfield – news · newspapers · books · scholar · JSTOR (January 2023) (Learn how and when to remove this ...

Diskografi Oneus

Diskografi OneusAlbum studio1Extended play5Singel9 Diskografi Oneus ini terdiri dari satu album studio, lima album mini, dan sembilan singel. Album studio Judul Rincian Posisi puncak tangga lagu Penjualan KOR[1] Devil Rilis: 29 Januari 2021 Label: RBW Format: CD, unduh digital, streaming Daftar lagu Intro: Devil Is in the Detail No Diggity (반박불가) Leftover (식은 음식) Incomplete (완벽하지 않아도 괜찮아) Youth Bbusyeo (뿌셔) Rewind (우리의 시간은 거꾸로 ...

 

 

Sideshow Bob

Sideshow Bob Personaje de Los SimpsonPrimera aparición The Telltale HeadCreado por Matt GroeningVoz original Kelsey GrammerNacimiento 11 de octubre de 1957Nacionalidad Estados UnidosSexo masculinoFamilia y relacionesFamilia TerwilligerCónyuge Selma BouvierHijos Gino TerwilligerOtros familiares Francesca Terwilliger (Esposa)Gino Terwilliger (Hijo)Cecil Terwilliger (Hermano)Dr. Robert Onderdonk Terwilliger, Sr. (Padre)Dame Judith Onderdonk (madre)Selma Bouvier (Exesposa)Información profesio...

 

 

Pelagiarctos

Extinct genus of carnivores PelagiarctosTemporal range: Mid Miocene Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Carnivora Clade: Pinnipedia Family: Odobenidae Genus: †PelagiarctosBarnes, 1988 Type species †Pelagiarctos thomasiBarnes, 1988 Pelagiarctos was a genus of walrus that lived during the Mid Miocene, approx. 13-15 mya. Its remains have been found in the Sharktooth Hill Bonebed, in Kern County, California. It was originally d...

Rayon

Cellulose-based semi-synthetic fiber For other uses, see Rayon (disambiguation). When a solution of cellulose in cuprammonium hydroxide comes into contact with sulfuric acid, the cellulose begins to precipitate from the solution. The acid reacts with a complex compound of copper and dissolves it, and thin blue fibers of rayon are formed. After some time, the acid reacts with the complex compound and washes out the copper salts from the fibers, which become colorless. Rayon, also called viscos...

 

 

Saint-Romain-au-Mont-d'Or

Pour les articles homonymes, voir Saint-Romain. Saint-Romain-au-Mont-d'Or Blason Administration Pays France Région Auvergne-Rhône-Alpes Métropole Métropole de Lyon Circonscription départementale Circonscription départementale du Rhône Arrondissement Lyon Maire Mandat Guillaume Malot 2022-2026 Code postal 69270 Code commune 69233 Démographie Gentilé Saromagnots[1]. Populationmunicipale 1 238 hab. (2021 ) Densité 473 hab./km2 Géographie Coordonnées 45° 50′...