<?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>S2444-054X2022000800013</article-id>
<article-id pub-id-type="doi">10.24875/ciru.21000876</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Changing characteristics of emergency surgery during COVID-19 pandemic: a retrospective cohort study]]></article-title>
<article-title xml:lang="es"><![CDATA[Cambio en las características de las cirugías de emergencia en la pandemia de COVID-19: estudio de cohorte retrospectiva]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Serrano-González]]></surname>
<given-names><![CDATA[Sheyla P.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Nájera-Reyes]]></surname>
<given-names><![CDATA[Jerath A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ortiz-Mendoza]]></surname>
<given-names><![CDATA[Carlos M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado Hospital General Tacuba Department of General Surgery]]></institution>
<addr-line><![CDATA[Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2022</year>
</pub-date>
<volume>90</volume>
<fpage>13</fpage>
<lpage>17</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2444-054X2022000800013&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2444-054X2022000800013&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2444-054X2022000800013&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background: In other countries, researchers have noticed diverse variations in the features of patients undergoing emergency surgery during the COVID-19 pandemic. In Mexico, there is not information about this issue.  Methods: Workers of the Mexican Government, who required emergency surgeries were studied by the general surgery service of a General Hospital administered by the Institute of Social Security and Services for State Workers Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado (ISSSTE), through the periods from March-August 2019 (non-exposed) and March-August 2020 (exposed). The analysis included: demographic data, laboratory information, post-operative diagnoses, symptoms' length, days of emergency stay, and post-operative stay.  Results: One hundred and ninety-three emergency surgeries were analyzed; 106 in 2019 and 87 in 2020 (a decrease of 18%). Throughout the pandemic, the number of days between the symptoms' onset and surgery was greater: 2019, 7.6 ± 4.6 days; 2020, 14 ± 6.7 days (p &lt; 0.0001). In addition, cases of acute appendicitis decreased (2019-60.3%; 2020-42.5%), and those of acute calculous cholecystitis increased (2019-12.2%; 2020-24.1%).  Conclusion: Through the COVID-19 pandemic, there were notable changes in the characteristics of Mexican Government's workers who warranted emergency surgery.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Antecedentes: En otros países, han notado diversos cambios en las características de los pacientes sometidos a cirugía de emergencia durante la pandemia de COVID-19. En México no existe información sobre este tema.  Método: Estudiamos a los trabajadores del gobierno mexicano que requirieron tratamiento quirúrgico de emergencia por el servicio de cirugía general de un Hospital General del Instituto de Seguridad y Servicios Sociales para los Trabajadores del Estado (ISSSTE), durante los periodos de marzo-agosto de 2019 (no expuestos) y marzo-agosto de 2020 (expuestos). El análisis incluyó: datos demográficos, datos de laboratorio, diagnósticos postoperatorios, duración de los síntomas, días de estancia en emergencias y estadía postoperatoria.  Resultados: Se analizaron 193 cirugías de emergencia; 106 en 2019 y 87 en 2020 (una disminución del 18%). En la pandemia, el número de días entre el inicio de los síntomas y la cirugía fue mayor: 2019, 7.6 ± 4.6 días; 2020, 14 ± 6.7 días (p &lt; 0.0001). Además, disminuyeron los casos de apendicitis aguda (2019-60,3%; 2020-42,5%) y aumentaron los de colecistitis litiásica aguda (2019-12,2%; 2020-24,1%).  Conclusión: Durante la pandemia de COVID-19, hubo cambios notables en las características de los trabajadores del gobierno mexicano que ameritaron cirugías de emergencia.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Abdominal pain]]></kwd>
<kwd lng="en"><![CDATA[Abdominal surgery]]></kwd>
<kwd lng="en"><![CDATA[COVID-19]]></kwd>
<kwd lng="en"><![CDATA[Emergency]]></kwd>
<kwd lng="en"><![CDATA[Lockdown]]></kwd>
<kwd lng="es"><![CDATA[Cirugía abdominal]]></kwd>
<kwd lng="es"><![CDATA[Confinamiento]]></kwd>
<kwd lng="es"><![CDATA[COVID-19]]></kwd>
<kwd lng="es"><![CDATA[Dolor abdominal]]></kwd>
<kwd lng="es"><![CDATA[Emergencia]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="">
<collab>Hopkins University</collab>
<source><![CDATA[Coronavirus Resource Center]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[De]]></surname>
<given-names><![CDATA[Simone B]]></given-names>
</name>
<name>
<surname><![CDATA[Chouillard]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Di]]></surname>
<given-names><![CDATA[Saverio S]]></given-names>
</name>
<name>
<surname><![CDATA[Pagani]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Sartelli]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Biffl]]></surname>
<given-names><![CDATA[WL]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Emergency surgery during the COVID-19 pandemic:what you need to know for practice]]></article-title>
<source><![CDATA[Ann R Coll Surg Engl]]></source>
<year>2020</year>
<volume>102</volume>
<page-range>323-32</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[Patriti]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Baiocchi]]></surname>
<given-names><![CDATA[GL]]></given-names>
</name>
<name>
<surname><![CDATA[Catena]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Marini]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Catarci]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Emergency general surgery in Italy during the COVID-19 outbreak:first survey from the real life]]></article-title>
<source><![CDATA[World J Emerg Surg]]></source>
<year>2020</year>
<volume>15</volume>
<page-range>36</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[Moletta]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Pierobon]]></surname>
<given-names><![CDATA[ES]]></given-names>
</name>
<name>
<surname><![CDATA[Capovilla]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Costantini]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Salvador]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Merigliano]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[International guidelines and recommendations for surgery during Covid-19 pandemic:a systematic review]]></article-title>
<source><![CDATA[Int J Surg]]></source>
<year>2020</year>
<volume>79</volume>
<page-range>180-8</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Steinman]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[de]]></surname>
<given-names><![CDATA[Sousa JH]]></given-names>
</name>
<name>
<surname><![CDATA[Tustumi]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Wolosker]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The burden of the pandemic on the non-SARS-CoV-2 emergencies:a multicenter study]]></article-title>
<source><![CDATA[Am J Emerg Med]]></source>
<year>2021</year>
<volume>42</volume>
<page-range>9-14</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hána]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Ryska]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Pohnán]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Acute appendicitis during the spring COVID-19 pandemic in 2020-a comparative retrospective study]]></article-title>
<source><![CDATA[Rozhl Chir]]></source>
<year>2021</year>
<volume>100</volume>
<page-range>429-34</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[Jäntti]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Ponkilainen]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Kuitunen]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Trends in acute abdominal pain visits to EDs and rate of abdominal surgeries during the COVID-19 pandemic in Finland:A retrospective register study]]></article-title>
<source><![CDATA[Scand J Surg]]></source>
<year>2022</year>
<volume>111</volume>
<numero>1</numero>
<issue>1</issue>
</nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nishida]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Otagiri]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Tauchi]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Emergency abdominal surgeries remain unchanged in the COVID-19 affected environment:a single-center experience at a community hospital in Japan]]></article-title>
<source><![CDATA[Acute Med Surg]]></source>
<year>2021</year>
<volume>8</volume>
<page-range>e623</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[Cano-Valderrama]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Morales]]></surname>
<given-names><![CDATA[X]]></given-names>
</name>
<name>
<surname><![CDATA[Ferrigni]]></surname>
<given-names><![CDATA[CJ]]></given-names>
</name>
<name>
<surname><![CDATA[Martín-Antona]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Turrado]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Acute care surgery during the COVID-19 pandemic in Spain:changes in volume, causes and complications. A multicenter retrospective cohort study]]></article-title>
<source><![CDATA[Int J Surg]]></source>
<year>2020</year>
<volume>80</volume>
<page-range>157-61</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[Kurihara]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Marrano]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Ceolin]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Chiara]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Faccincani]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Bisagni]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Impact of lockdown on emergency general surgery during first 2020 COVID-19 outbreak]]></article-title>
<source><![CDATA[Eur J Trauma Emerg Surg]]></source>
<year>2021</year>
<volume>47</volume>
<page-range>677-82</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[Pastor]]></surname>
<given-names><![CDATA[Romero SA]]></given-names>
</name>
<name>
<surname><![CDATA[Medina]]></surname>
<given-names><![CDATA[Flores PA]]></given-names>
</name>
<name>
<surname><![CDATA[Cárdenas]]></surname>
<given-names><![CDATA[Dávalos JC]]></given-names>
</name>
<name>
<surname><![CDATA[Barba]]></surname>
<given-names><![CDATA[Bermeo W]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Emergency surgical disease during the COVID-19 pandemic in a second level hospital in Ecuador]]></article-title>
<source><![CDATA[Vive Rev Salud (El Alto)]]></source>
<year>2020</year>
<volume>3</volume>
<page-range>158-65</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[Pérez-Rubio]]></surname>
<given-names><![CDATA[Á]]></given-names>
</name>
<name>
<surname><![CDATA[Sebastián]]></surname>
<given-names><![CDATA[Tomás JC]]></given-names>
</name>
<name>
<surname><![CDATA[Navarro-Martínez]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Gonzálvez]]></surname>
<given-names><![CDATA[Guardiola P]]></given-names>
</name>
<name>
<surname><![CDATA[Torrecillas]]></surname>
<given-names><![CDATA[Meroño DG]]></given-names>
</name>
<name>
<surname><![CDATA[Domingo]]></surname>
<given-names><![CDATA[Del Pozo C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Incidence of surgical abdominal emergencies during SARS-CoV-2 pandemic]]></article-title>
<source><![CDATA[Cir Esp (Engl Ed)]]></source>
<year>2020</year>
<volume>98</volume>
<page-range>618-24</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[Prieto]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Ielpo]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Jiménez]]></surname>
<given-names><![CDATA[Fuertes M]]></given-names>
</name>
<name>
<surname><![CDATA[González]]></surname>
<given-names><![CDATA[Sánchez MD]]></given-names>
</name>
<name>
<surname><![CDATA[Martín]]></surname>
<given-names><![CDATA[Antona E]]></given-names>
</name>
<name>
<surname><![CDATA[Balibrea]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[National survey on the treatment of acute appendicitis in Spain during the initial period of the COVID-19 pandemic]]></article-title>
<source><![CDATA[Cir Esp]]></source>
<year>2021</year>
<volume>99</volume>
<page-range>450-56</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[Rausei]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Ferrara]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Zurleni]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Frattini]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Chiara]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Pietrabissa]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Dramatic decrease of surgical emergencies during COVID-19 outbreak]]></article-title>
<source><![CDATA[J Trauma Acute Care Surg]]></source>
<year>2020</year>
<volume>89</volume>
<page-range>1085-91</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[Reichert]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Sartelli]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Weigand]]></surname>
<given-names><![CDATA[MA]]></given-names>
</name>
<name>
<surname><![CDATA[Doppstadt]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Hecker]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Reinisch-Liese]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Impact of the SARS-CoV-2 pandemic on emergency surgery services-a multi-national survey among WSES members]]></article-title>
<source><![CDATA[World J Emerg Surg]]></source>
<year>2020</year>
<volume>15</volume>
<page-range>64</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[Tokarczyk]]></surname>
<given-names><![CDATA[U]]></given-names>
</name>
<name>
<surname><![CDATA[&#346;liwa]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Nowak]]></surname>
<given-names><![CDATA[&#321;]]></given-names>
</name>
<name>
<surname><![CDATA[Sutkowska]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Kaliszewski]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Changes in the number and condition of patients admitting to the emergency department with abdominal pain during the COVID-19 pandemics:single-center experience]]></article-title>
<source><![CDATA[Asian J Surg]]></source>
<year>2021</year>
<volume>44</volume>
<page-range>1193-94</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[Zhou]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Cen]]></surname>
<given-names><![CDATA[LS]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Managing acute appendicitis during the COVID-19 pandemic in Jiaxing, China]]></article-title>
<source><![CDATA[World J Clin Cases]]></source>
<year>2020</year>
<volume>8</volume>
<page-range>4349-59</page-range></nlm-citation>
</ref>
<ref id="B18">
<label>18</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dick]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Green]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Brown]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Kennedy]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Cassidy]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Othman]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Changes in emergency general surgery during Covid-19 in Scotland:a prospective cohort study]]></article-title>
<source><![CDATA[World J Surg]]></source>
<year>2020</year>
<volume>44</volume>
<page-range>3590-94</page-range></nlm-citation>
</ref>
<ref id="B19">
<label>19</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lisi]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Campanelli]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Mastrangeli]]></surname>
<given-names><![CDATA[MR]]></given-names>
</name>
<name>
<surname><![CDATA[Grande]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Viarengo]]></surname>
<given-names><![CDATA[MA]]></given-names>
</name>
<name>
<surname><![CDATA[Garbarino]]></surname>
<given-names><![CDATA[GM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Acute appendicitis in elderly during Covid-19 pandemic]]></article-title>
<source><![CDATA[Int J Colorectal Dis]]></source>
<year>2021</year>
<volume>36</volume>
<page-range>2287-90</page-range></nlm-citation>
</ref>
<ref id="B20">
<label>20</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gomez]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Simpson]]></surname>
<given-names><![CDATA[AN]]></given-names>
</name>
<name>
<surname><![CDATA[Sue-Chue-Lam]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[de]]></surname>
<given-names><![CDATA[Mestral C]]></given-names>
</name>
<name>
<surname><![CDATA[Dossa]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Nantais]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A population-based analysis of the impact of the COVID-19 pandemic on common abdominal and gynecological emergency department visits]]></article-title>
<source><![CDATA[CMAJ]]></source>
<year>2021</year>
<volume>193</volume>
<page-range>E753-60</page-range></nlm-citation>
</ref>
<ref id="B21">
<label>21</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Selvaggi]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Menegon]]></surname>
<given-names><![CDATA[Tasselli F]]></given-names>
</name>
<name>
<surname><![CDATA[Sciaudone]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Kontovounisios]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Cosenza]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Sica]]></surname>
<given-names><![CDATA[GS]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Shifting paradigms in two common abdominal surgical emergencies during the pandemic]]></article-title>
<source><![CDATA[Br J Surg]]></source>
<year>2021</year>
<volume>108</volume>
<page-range>e127-28</page-range></nlm-citation>
</ref>
<ref id="B22">
<label>22</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Presl]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Varga]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Mittermair]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Mitterwallner]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Weitzendorfer]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Gabersek]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Impact of the COVID-19 pandemic lockdown on the utilization of acute surgical care in the State of Salzburg, Austria:retrospective, multicenter analysis]]></article-title>
<source><![CDATA[Eur Surg]]></source>
<year>2021</year>
<volume>4</volume>
<page-range>1-7</page-range></nlm-citation>
</ref>
<ref id="B23">
<label>23</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Willms]]></surname>
<given-names><![CDATA[AG]]></given-names>
</name>
<name>
<surname><![CDATA[Oldhafer]]></surname>
<given-names><![CDATA[KJ]]></given-names>
</name>
<name>
<surname><![CDATA[Conze]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Thasler]]></surname>
<given-names><![CDATA[WE]]></given-names>
</name>
<name>
<surname><![CDATA[von]]></surname>
<given-names><![CDATA[Schassen C]]></given-names>
</name>
<name>
<surname><![CDATA[Hauer]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Appendicitis during the COVID-19 lockdown:results of a multicenter analysis in Germany]]></article-title>
<source><![CDATA[Langenbecks Arch Surg]]></source>
<year>2021</year>
<volume>406</volume>
<page-range>367-75</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
