<?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>S2444-054X2023000300344</article-id>
<article-id pub-id-type="doi">10.24875/ciru.22000512</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Postoperative complications and predictors of mortality in patients with COVID-19]]></article-title>
<article-title xml:lang="es"><![CDATA[Complicaciones posoperatorias y predictores de mortalidad en pacientes con COVID-19]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bozada-Gutiérrez]]></surname>
<given-names><![CDATA[Katya]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Trejo-Ávila]]></surname>
<given-names><![CDATA[Mario]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moreno-Portillo]]></surname>
<given-names><![CDATA[Mucio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital General "Dr. Manuel Gea González" Division of General and Endoscopic Surgery ]]></institution>
<addr-line><![CDATA[ Ciudad de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2023</year>
</pub-date>
<volume>91</volume>
<numero>3</numero>
<fpage>344</fpage>
<lpage>353</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2444-054X2023000300344&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2444-054X2023000300344&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2444-054X2023000300344&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background: There are limited data about the perioperative outcomes of coronavirus disease 2019 (COVID-19) patients that needed emergency general surgery. The aim of the present study was to describe the perioperative outcomes and mortality of patients with COVID-19 who underwent emergency surgery.  Materials and methods: Retrospective study of COVID-19 patients symptomatic versus asymptomatic from March 2020 to February 2022 that needed an emergency surgery in a national referral hospital.  Results: Forty-four patients were included in this study. Patients with symptomatic COVID-19 have higher ICU admissions and prolonged length of stay (LOS) as compared with asymptomatic COVID-19 patients. The 90-day survival probability of the entire cohort was 70.1% (60.3-79.9) and was significantly lower in patients with COVID-19 symptomatic 63.4% (50.5-76.2). The cut-off preoperative values for the prediction of mortality: Ferritin &#8805; 438.5 ng/mL (Area under the curve [AUC] = 0.908), C-reactive protein (CRP) &#8805; 12.5 mg/dL (AUC = 0.715), leukocyte &#8805; 13.8 × 103/mL (AUC = 0.706), and albumin &#8804; 2.78 g/dL (AUC = 704). Furthermore, a cut-off value of CRP of &#8805; 12.5 mg/dL yielded an accuracy of 82.9% for the prediction of postoperative complications (p &lt; 0.001).  Conclusion: Patients with symptomatic COVID-19 who needed emergency surgery have higher ICU admissions, prolonged LOS, and decreased 90-day survival as compared with asymptomatic COVID-19 patients. Preoperative ferritin, CRP, leukocytes, and albumin could be used as predictors of mortality.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Antecedentes: Hay datos limitados sobre los pacientes con COVID-19 que necesitaron cirugía de emergencia. El objetivo del presente estudio fue describir los resultados perioperatorios y la mortalidad de pacientes con COVID-19 que se sometieron a cirugía de emergencia.  Material y métodos: Estudio retrospectivo de pacientes con COVID-19 sintomáticos vs. asintomáticos de marzo 2020 a febrero 2022 que requirieron cirugía de emergencia en un Hospital de Referencia Nacional.  Resultados: Se incluyeron 44 pacientes. Los pacientes con COVID-19 sintomático tienen más admisiones en la UCI y estancia hospitalaria prolongada en comparación con los pacientes con COVID-19 asintomático. La supervivencia a 90 días de la cohorte fue del 70,1% (60,3-79,9) y fue menor en los pacientes con COVID-19 sintomáticos del 63.4% (50.5-76.2). Los valores preoperatorios para la predicción de mortalidad: ferritina &#8805; 438.5 ng/mL (AUC = 0.908), PCR &#8805; 12.5 mg/dL (AUC = 0.715), leucocitos &#8805; 13.8 × 103/mL (AUC = 0.706) y albúmina &#8804; 2.78 g/dl (AUC = 704). La PCR de &#8805; 12.5 mg/dL tiene una precisión del 82.9% para la predicción de complicaciones posoperatorias (p &lt; 0.001).  Conclusión: Los pacientes con COVID-19 sintomático tienen más admisiones en la UCI, estancia hospitalaria prolongada y menor supervivencia en comparación con los pacientes con COVID-19 asintomáticos. La ferritina, PCR, leucocitos y albúmina preoperatoria pueden utilizarse como predictores de mortalidad.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Coronavirus disease 2019]]></kwd>
<kwd lng="en"><![CDATA[Severe acute respiratory syndrome coronavirus 2]]></kwd>
<kwd lng="en"><![CDATA[Perioperative complications]]></kwd>
<kwd lng="en"><![CDATA[Mortality]]></kwd>
<kwd lng="es"><![CDATA[Coronavirus disease 2019]]></kwd>
<kwd lng="es"><![CDATA[Severe acute respiratory syndrome coronavirus 2]]></kwd>
<kwd lng="es"><![CDATA[Complicaciones perioperatorias]]></kwd>
<kwd lng="es"><![CDATA[Mortalidad]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="book">
<collab>World Health Organization</collab>
<source><![CDATA[WHO Coronavirus Disease (COVID-19) dashboard 1]]></source>
<year>2022</year>
<publisher-loc><![CDATA[Geneva ]]></publisher-loc>
<publisher-name><![CDATA[World Health Organization]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Antonio-Villa]]></surname>
<given-names><![CDATA[NE]]></given-names>
</name>
<name>
<surname><![CDATA[Fernandez-Chirino]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Pisanty-Alatorre]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Mancilla-Galindo]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Kammar-García]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Vargas-Vázquez]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comprehensive evaluation of the impact of sociodemographic inequalities on adverse outcomes and excess mortality during the COVID-19 pandemic in Mexico City]]></article-title>
<source><![CDATA[Clin Infect Dis]]></source>
<year>2021</year>
<page-range>ciab577</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[Vranis]]></surname>
<given-names><![CDATA[NM]]></given-names>
</name>
<name>
<surname><![CDATA[Bekisz]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Daar]]></surname>
<given-names><![CDATA[DA]]></given-names>
</name>
<name>
<surname><![CDATA[Chiu]]></surname>
<given-names><![CDATA[ES]]></given-names>
</name>
<name>
<surname><![CDATA[Wilson]]></surname>
<given-names><![CDATA[SC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Clinical outcomes of 2019 COVID-19 Positive patients who underwent surgery:A New York city experience]]></article-title>
<source><![CDATA[J Surg Res]]></source>
<year>2021</year>
<volume>261</volume>
<page-range>113-22</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[Lei]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Jiang]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Su]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Mei]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Clinical characteristics and outcomes of patients undergoing surgeries during the incubation period of COVID-19 infection]]></article-title>
<source><![CDATA[EClinicalMedicine]]></source>
<year>2020</year>
<volume>21</volume>
<page-range>100331</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[Aminian]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Safari]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Razeghian-Jahromi]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Ghorbani]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Delaney]]></surname>
<given-names><![CDATA[CP]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[COVID-19 outbreak and surgical practice:Unexpected fatality in perioperative period]]></article-title>
<source><![CDATA[Ann Surg]]></source>
<year>2020</year>
<volume>272</volume>
<page-range>e27-9</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<collab>COVIDSurg Collaborative</collab>
<article-title xml:lang=""><![CDATA[Mortality and pulmonary complications in patients undergoing surgery with perioperative SARS-CoV-2 infection:An international cohort study]]></article-title>
<source><![CDATA[Lancet]]></source>
<year>2020</year>
<volume>396</volume>
<page-range>27-38</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[Abate]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Mantefardo]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Basu]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Postoperative mortality among surgical patients with COVID-19:A systematic review and meta-analysis]]></article-title>
<source><![CDATA[Patient Saf Surg]]></source>
<year>2020</year>
<volume>1</volume>
<page-range>37</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[Seeliger]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Philouze]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Cherkaoui]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
<name>
<surname><![CDATA[Felli]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Mutter]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Pessaux]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Acute abdomen in patients with SARS-CoV-2 infection or co-infection]]></article-title>
<source><![CDATA[Langenbecks Arch Surg]]></source>
<year>2020</year>
<volume>405</volume>
<page-range>861-6</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<collab>COVIDSurg Collaborative, GlobalSurg Collaborative</collab>
<article-title xml:lang=""><![CDATA[Timing of surgery following SARS-CoV-2 infection:An international prospective cohort study]]></article-title>
<source><![CDATA[Anaesthesia]]></source>
<year>2021</year>
<volume>76</volume>
<page-range>748-8</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[Prokop]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[van Everdingen]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
<name>
<surname><![CDATA[van Rees Vellinga]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Quarles van Ufford]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Stöger]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[CO-RADS:A Categorical CT Assessment scheme for patients suspected of having COVID-19-definition and evaluation]]></article-title>
<source><![CDATA[Radiology]]></source>
<year>2020</year>
<volume>296</volume>
<page-range>E97-104</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[Merad]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Blish]]></surname>
<given-names><![CDATA[CA]]></given-names>
</name>
<name>
<surname><![CDATA[Sallusto]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Iwasaki]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The immunology and immunopathology of COVID-19]]></article-title>
<source><![CDATA[Science]]></source>
<year>2022</year>
<volume>375</volume>
<page-range>1122-7</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[Singer]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Deutschman]]></surname>
<given-names><![CDATA[CS]]></given-names>
</name>
<name>
<surname><![CDATA[Seymour]]></surname>
<given-names><![CDATA[CW]]></given-names>
</name>
<name>
<surname><![CDATA[Shankar-Hari]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Annane]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Bauer]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The third international consensus definitions for sepsis and septic shock (Sepsis-3)]]></article-title>
<source><![CDATA[JAMA]]></source>
<year>2016</year>
<volume>315</volume>
<page-range>801-10</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[Dindo]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Demartines]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Clavien]]></surname>
<given-names><![CDATA[PA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Classification of surgical complications:A new proposal with evaluation in a cohort of 6336 patients and results of a survey]]></article-title>
<source><![CDATA[Ann Surg]]></source>
<year>2004</year>
<volume>240</volume>
<page-range>205-13</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[Richardson]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Hirsch]]></surname>
<given-names><![CDATA[JS]]></given-names>
</name>
<name>
<surname><![CDATA[Narasimhan]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Crawford]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[McGinn]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Davidson]]></surname>
<given-names><![CDATA[KW]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Northwell COVID-19 research consortium. Presenting characteristics, comorbidities, and outcomes among 5700 patients hospitalized With COVID-19 in the New York City area]]></article-title>
<source><![CDATA[JAMA]]></source>
<year>2020</year>
<volume>323</volume>
<page-range>2052-9</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[Guan]]></surname>
<given-names><![CDATA[WJ]]></given-names>
</name>
<name>
<surname><![CDATA[Ni]]></surname>
<given-names><![CDATA[ZY]]></given-names>
</name>
<name>
<surname><![CDATA[Hu]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Liang]]></surname>
<given-names><![CDATA[WH]]></given-names>
</name>
<name>
<surname><![CDATA[Ou]]></surname>
<given-names><![CDATA[CQ]]></given-names>
</name>
<name>
<surname><![CDATA[He]]></surname>
<given-names><![CDATA[JX]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Clinical characteristics of coronavirus disease 2019 in China]]></article-title>
<source><![CDATA[N Engl J Med]]></source>
<year>2020</year>
<volume>382</volume>
<page-range>1708-20</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[Pai]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Chopra]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Mandloi]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Upadhyay]]></surname>
<given-names><![CDATA[AK]]></given-names>
</name>
<name>
<surname><![CDATA[Prem]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Pandey]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Continuing surgical care in cancer patients during the nationwide lockdown in the COVID-19 pandemic-perioperative outcomes from a tertiary care cancer center in India]]></article-title>
<source><![CDATA[J Surg Oncol]]></source>
<year>2020</year>
<volume>122</volume>
<page-range>1-6</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[Doglietto]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Vezzoli]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Gheza]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Lussardi]]></surname>
<given-names><![CDATA[GL]]></given-names>
</name>
<name>
<surname><![CDATA[Domenicucci]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Vecchiarelli]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Factors associated with surgical mortality and complications among patients with and without coronavirus disease 2019 (COVID-19) in Italy]]></article-title>
<source><![CDATA[JAMA Surg]]></source>
<year>2020</year>
<volume>155</volume>
<page-range>691-702</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[Carrier]]></surname>
<given-names><![CDATA[FM]]></given-names>
</name>
<name>
<surname><![CDATA[Amzallag]]></surname>
<given-names><![CDATA[É]]></given-names>
</name>
<name>
<surname><![CDATA[Lecluyse]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Côté]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Couture]]></surname>
<given-names><![CDATA[ÉJ]]></given-names>
</name>
<name>
<surname><![CDATA[D'Aragon]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Postoperative outcomes in surgical COVID-19 patients:A multicenter cohort study]]></article-title>
<source><![CDATA[BMC Anesthesiology]]></source>
<year>2021</year>
<volume>21</volume>
<page-range>15</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[Fallani]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Lombardi]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Masetti]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Chisari]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Zanini]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Cattaneo]]></surname>
<given-names><![CDATA[GM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Urgent and emergency surgery for secondary peritonitis during the COVID-19 outbreak:An unseen burden of a healthcare crisis]]></article-title>
<source><![CDATA[Updates Surg]]></source>
<year>2021</year>
<volume>73</volume>
<page-range>753-62</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[El Boghdady]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Ewalds-Kvist]]></surname>
<given-names><![CDATA[BM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Laparoscopic surgery and the debate on its safety during COVID-19 pandemic:A systematic review of recommendations]]></article-title>
<source><![CDATA[Surgeon]]></source>
<year>2021</year>
<volume>19</volume>
<page-range>e29-39</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[Di Saverio]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Khan]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Pata]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Ietto]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[De Simone]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Zani]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Laparoscopy at all costs?Not now during COVID-19 outbreak and not for acute care surgery and emergency colorectal surgery:A practical algorithm from a hub tertiary teaching hospital in Northern Lombardy, Italy]]></article-title>
<source><![CDATA[J Trauma Acute Care Surg]]></source>
<year>2020</year>
<volume>88</volume>
<page-range>715-8</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[Francis]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Dort]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Cho]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Feldman]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Keller]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Lim]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[SAGES and EAES recommendations for minimally invasive surgery during COVID-19 pandemic]]></article-title>
<source><![CDATA[Surg Endosc]]></source>
<year>2020</year>
<volume>34</volume>
<page-range>2327-31</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[Schwarz]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Tuech]]></surname>
<given-names><![CDATA[JJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Is the use of laparoscopy in a COVID-19 epidemic free of risk?]]></article-title>
<source><![CDATA[Br J Surg]]></source>
<year>2020</year>
<volume>107</volume>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
