<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2444-054X</journal-id>
<journal-title><![CDATA[Cirugía y cirujanos]]></journal-title>
<abbrev-journal-title><![CDATA[Cir. cir.]]></abbrev-journal-title>
<issn>2444-054X</issn>
<publisher>
<publisher-name><![CDATA[Academia Mexicana de Cirugía A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2444-054X2025000300004</article-id>
<article-id pub-id-type="doi">10.24875/ciru.24000076</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Survival analysis in a high-altitude lung transplant program: insights from a real-life observational study]]></article-title>
<article-title xml:lang="es"><![CDATA[Análisis de la supervivencia en un programa de trasplante pulmonar en alta altitud: conocimientos de un estudio observacional de la vida real]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Varón-Vega]]></surname>
<given-names><![CDATA[Fabio A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rincón]]></surname>
<given-names><![CDATA[Adriana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tuta-Quintero]]></surname>
<given-names><![CDATA[Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Avilés]]></surname>
<given-names><![CDATA[Catalina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Prada]]></surname>
<given-names><![CDATA[Leidy P.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Téllez]]></surname>
<given-names><![CDATA[Luis J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Fundación Cardio Infantil Fundación Neumológica Colombiana Critical Care and Lung transplantation Service]]></institution>
<addr-line><![CDATA[Chía ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Fundación Cardio Infantil Critical Care Service Fundación Neumológica Colombiana]]></institution>
<addr-line><![CDATA[Chía ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de La Sabana School of Medicine Department of Internal Medicine]]></institution>
<addr-line><![CDATA[Chía ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Pontificia Universidad Javeriana School of Medicine Department of Internal Medicine]]></institution>
<addr-line><![CDATA[Chía ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,La Cardio Thoracic Surgery ]]></institution>
<addr-line><![CDATA[Chía ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2025</year>
</pub-date>
<volume>93</volume>
<numero>3</numero>
<fpage>267</fpage>
<lpage>272</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2444-054X2025000300004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2444-054X2025000300004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2444-054X2025000300004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Objective: Survival in lung transplantation (LT) may be influenced by recipient-related variables, donor factors, donor-recipient interaction, surgical approach, and medical center expertise. The objective of this study was to describe the sociodemographic, clinical characteristics, and survival of patients who have undergone LT.  Method: We conducted an observational analysis between 2014 and 2022. Survival was calculated using the Kaplan-Meier method at the 1st, 3rd, and 5th years of follow-up post-transplantation.  Results: We analyzed data from 50 subjects, of whom 56% (28/50) were men, with a median age of 54 years (interquartile range: 39-59). The unadjusted survival rates post lung transplantation were 81.4% at 12-months, 65.8% at 3-years, and 53.6% at 5-years. Excluding mortality attributed to COVID-19, survival rates were 78.2% at 12-months, 68.8% at 3-years, and 63.5% at 5-years. The survival of pulmonary fibrosis with a non-usual interstitial pneumonia (N-UIP) pattern was 85% at 1 year and 54% at 5 years, while pulmonary fibrosis with a usual interstitial pneumonia (UIP) pattern demonstrated a solid survival rate of 80% at 1 year and 60% at 5 years.  Conclusions: Patients with pulmonary fibrosis with a N-UIP pattern demonstrated superior survival after 1 year of follow-up, while those with pulmonary fibrosis with a UIP pattern described the highest survival at the 5th year. COVID-19 decreased long-term survival in transplant patients.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Objetivo: La supervivencia en el trasplante de pulmón (TP) puede verse afectada por variables relacionadas con el receptor, el donante, la interacción de donante y receptor, el enfoque quirúrgico y la experiencia del centro médico. El objetivo de este estudio fue describir las características sociodemográficas y clínicas, y la sobrevida, de pacientes sometidos a TP  Método: Realizamos un análisis observacional entre 2014 y 2022. La supervivencia se calculó utilizando el método de Kaplan-Meier al primer, tercer y quinto años de seguimiento posterior al trasplante.  Resultados: Analizamos datos de 50 pacientes, de los cuales el 56% (28/50) eran hombres, con una edad mediana de 54 años (RIQ: 39-59). Las tasas de supervivencia no ajustadas después del trasplante pulmonar fueron del 81.4% a los 12 meses, del 65.8% a los 3 años y del 53.6% a los 5 años. Excluyendo la mortalidad atribuida a COVID-19, las tasas de supervivencia fueron del 78.2% a los 12 meses, del 68.8% a los 3 años y del 63.5% a los 5 años. La supervivencia de los pacientes con fibrosis pulmonar con un patrón de neumonía intersticial no usual fue del 85% al año y del 54% a los 5 años, mientras que aquellos con fibrosis pulmonar con un patrón de neumonía intersticial usual mostraron una sólida tasa de supervivencia del 80% al año y del 60% a los 5 años.  Conclusiones: Los pacientes con fibrosis pulmonar con un patrón de neumonía intersticial no usual tuvieron una mayor supervivencia después de 1 año de seguimiento, mientras que aquellos con fibrosis pulmonar con un patrón de neumonía intersticial usual tuvieron la mayor supervivencia en el quinto año. La COVID-19 disminuyó la supervivencia a largo plazo en los pacientes receptores de trasplante.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Lung transplantation]]></kwd>
<kwd lng="en"><![CDATA[High altitude]]></kwd>
<kwd lng="en"><![CDATA[Survival]]></kwd>
<kwd lng="es"><![CDATA[Trasplante pulmonar]]></kwd>
<kwd lng="es"><![CDATA[Alta altitud]]></kwd>
<kwd lng="es"><![CDATA[Supervivencia]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Weill]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Lung transplantation:indications and contraindications]]></article-title>
<source><![CDATA[J Thorac Dis]]></source>
<year>2018</year>
<volume>10</volume>
<page-range>4574-87</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Soriano]]></surname>
<given-names><![CDATA[JB]]></given-names>
</name>
<name>
<surname><![CDATA[Kendrick]]></surname>
<given-names><![CDATA[PJ]]></given-names>
</name>
<name>
<surname><![CDATA[Paulson]]></surname>
<given-names><![CDATA[KR]]></given-names>
</name>
<name>
<surname><![CDATA[Gupta]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Abramset]]></surname>
<given-names><![CDATA[EM]]></given-names>
</name>
<name>
<surname><![CDATA[Adedoyin]]></surname>
<given-names><![CDATA[RA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Prevalence and attributable health burden of chronic respiratory diseases, 1990-2017:a systematic analysis for the Global Burden of Disease Study 2017]]></article-title>
<source><![CDATA[Lancet Respir Med]]></source>
<year>2020</year>
<volume>8</volume>
<page-range>585-96</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chambers]]></surname>
<given-names><![CDATA[DC]]></given-names>
</name>
<name>
<surname><![CDATA[Perch]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Zuckermann]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Cherikh]]></surname>
<given-names><![CDATA[WS]]></given-names>
</name>
<name>
<surname><![CDATA[Harhay]]></surname>
<given-names><![CDATA[MO]]></given-names>
</name>
<name>
<surname><![CDATA[Hayes Jr]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The international thoracic organ transplant registry of the international society for heart and lung transplantation:thirty-eighth adult lung transplantation report - 2021 Focus on recipient characteristics]]></article-title>
<source><![CDATA[J Heart Lung Transplant]]></source>
<year>2021</year>
<volume>40</volume>
<page-range>1060-72</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Thabut]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Mal]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Outcomes after lung transplantation]]></article-title>
<source><![CDATA[J Thorac Dis]]></source>
<year>2017</year>
<volume>9</volume>
<page-range>2684-91</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="">
<collab>ISHLT</collab>
<source><![CDATA[The International Society for Heart and Lung Transplantation - International Thoracic Organ Transplant (TTX) Registry]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Burtscher]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Hefti]]></surname>
<given-names><![CDATA[U]]></given-names>
</name>
<name>
<surname><![CDATA[Hefti]]></surname>
<given-names><![CDATA[JP]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[High-altitude illnesses:old stories and new insights into the pathophysiology, treatment and prevention]]></article-title>
<source><![CDATA[Sport Med Heal Sci]]></source>
<year>2021</year>
<volume>3</volume>
<page-range>59-69</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vasquez-Rodriguez]]></surname>
<given-names><![CDATA[JF]]></given-names>
</name>
<name>
<surname><![CDATA[Medina-Mur]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Giraldo]]></surname>
<given-names><![CDATA[LE]]></given-names>
</name>
<name>
<surname><![CDATA[Jaimes]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Lopez]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Ramirez]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The right ventricle of transplanted hearts at 2,640 meters above sea level]]></article-title>
<source><![CDATA[A latin-american experience. Arch Cardiol Mex]]></source>
<year>2022</year>
<volume>92</volume>
<page-range>209-21</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Møller]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Every breath you take:acclimatisation at altitude]]></article-title>
<source><![CDATA[J Physiol]]></source>
<year>2010</year>
<volume>588</volume>
<page-range>1811-2</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Snell]]></surname>
<given-names><![CDATA[GI]]></given-names>
</name>
<name>
<surname><![CDATA[Yusen]]></surname>
<given-names><![CDATA[RD]]></given-names>
</name>
<name>
<surname><![CDATA[Weill]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Strueber]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Garrity]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Reed]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Report of the ISHLT Working Group on Primary Lung Graft Dysfunction, part I:definition and grading-A 2016 Consensus Group statement of the International Society for Heart and Lung Transplantation]]></article-title>
<source><![CDATA[J Hear Lung Transplant]]></source>
<year>2017</year>
<volume>36</volume>
<page-range>1097-103</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vock]]></surname>
<given-names><![CDATA[DM]]></given-names>
</name>
<name>
<surname><![CDATA[Durheim]]></surname>
<given-names><![CDATA[MT]]></given-names>
</name>
<name>
<surname><![CDATA[Tsuang]]></surname>
<given-names><![CDATA[WM]]></given-names>
</name>
<name>
<surname><![CDATA[Finlen Copeland]]></surname>
<given-names><![CDATA[CA]]></given-names>
</name>
<name>
<surname><![CDATA[Tsiatis]]></surname>
<given-names><![CDATA[AA]]></given-names>
</name>
<name>
<surname><![CDATA[Davidian]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Survival benefit of lung transplantation in the modern era of lung allocation]]></article-title>
<source><![CDATA[Ann Am Thorac Soc]]></source>
<year>2017</year>
<volume>14</volume>
<page-range>172-81</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Balsara]]></surname>
<given-names><![CDATA[KR]]></given-names>
</name>
<name>
<surname><![CDATA[Krupnick]]></surname>
<given-names><![CDATA[AS]]></given-names>
</name>
<name>
<surname><![CDATA[Bell]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Khiabani]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Scavuzzo]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Hachem]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A single-center experience of 1500 lung transplant patients]]></article-title>
<source><![CDATA[J Thorac Cardiovasc Surg]]></source>
<year>2018</year>
<volume>156</volume>
<page-range>894-905.e3</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Akram]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Nizami]]></surname>
<given-names><![CDATA[IY]]></given-names>
</name>
<name>
<surname><![CDATA[Hussein]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Saleh]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
<name>
<surname><![CDATA[Ismail]]></surname>
<given-names><![CDATA[MS]]></given-names>
</name>
<name>
<surname><![CDATA[AlKattan]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Rajput]]></surname>
<given-names><![CDATA[MS]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The outcomes of 80 lung transplants in a single center from Saudi Arabia]]></article-title>
<source><![CDATA[Ann Saudi Med]]></source>
<year>2019</year>
<volume>39</volume>
<page-range>221-8</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bärtsch]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Gibbs]]></surname>
<given-names><![CDATA[JS]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of altitude on the heart and the lungs]]></article-title>
<source><![CDATA[Circulation]]></source>
<year>2007</year>
<volume>116</volume>
<page-range>2191-202</page-range></nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cogo]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The lung at high altitude]]></article-title>
<source><![CDATA[Multidiscip Respir Med]]></source>
<year>2011</year>
<volume>6</volume>
<page-range>14-5</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Liou]]></surname>
<given-names><![CDATA[TG]]></given-names>
</name>
<name>
<surname><![CDATA[Adler]]></surname>
<given-names><![CDATA[FR]]></given-names>
</name>
<name>
<surname><![CDATA[Cahill]]></surname>
<given-names><![CDATA[BC]]></given-names>
</name>
<name>
<surname><![CDATA[FitzSimmons]]></surname>
<given-names><![CDATA[SC]]></given-names>
</name>
<name>
<surname><![CDATA[Huang]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Hibbs]]></surname>
<given-names><![CDATA[JR]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Survival effect of lung transplantation among patients with cystic fibrosis]]></article-title>
<source><![CDATA[JAMA]]></source>
<year>2001</year>
<volume>286</volume>
<page-range>2683-9</page-range></nlm-citation>
</ref>
<ref id="B16">
<label>16</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nelson]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Alvey]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Bowman]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Schulte]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Segovia]]></surname>
<given-names><![CDATA[MC]]></given-names>
</name>
<name>
<surname><![CDATA[McDermott]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Consensus recommendations for use of maintenance immunosuppression in solid organ transplantation:endorsed by the American College of Clinical Pharmacy, American Society of Transplantation, and the International Society for Heart and Lung Transplantation]]></article-title>
<source><![CDATA[Pharmacotherapy]]></source>
<year>2022</year>
<volume>42</volume>
<page-range>599-633</page-range></nlm-citation>
</ref>
<ref id="B17">
<label>17</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[McDermott]]></surname>
<given-names><![CDATA[JK]]></given-names>
</name>
<name>
<surname><![CDATA[Girgis]]></surname>
<given-names><![CDATA[RE]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Individualizing immunosuppression in lung transplantation]]></article-title>
<source><![CDATA[Glob Cardiol Sci Pract]]></source>
<year>2018</year>
<volume>2018</volume>
<page-range>5</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
