0000000000643783

AUTHOR

Zaher Lakkis

showing 8 related works from this author

Bevacizumab efficacy in metastatic colorectal cancer is dependent on primary tumor resection.

2014

Purpose Bevacizumab plus fluoropyrimidine-based chemotherapy is standard treatment for first-line and second-line metastatic colorectal cancer (mCRC). However, to date, there is no current biomarker predictive for the benefit of bevacizumab use for these patients. Preclinical data suggest that the presence of the primary tumor could be involved in less efficient antitumor activity of antiangiogenic agents, but no clinical data currently support this hypothesis. Methods We performed a retrospective analysis of factors associated with overall survival (OS) in a study cohort of 409 mCRC patients. Univariate and multivariate Cox proportional hazard regression models were used to assess the infl…

OncologyAdultMalemedicine.medical_specialtyBevacizumabOrganoplatinum CompoundsColorectal cancerAdenocarcinomaAntibodies Monoclonal HumanizedIrinotecanDeoxycytidineCapecitabineSurgical oncologyInternal medicineAntineoplastic Combined Chemotherapy ProtocolsmedicineHumansProspective StudiesNeoplasm MetastasisSurvival rateCapecitabineAgedNeoplasm StagingRetrospective StudiesAged 80 and overColorectal Cancerbusiness.industryMiddle Agedmedicine.diseasePrognosisPrimary tumorCombined Modality TherapyBevacizumabOxaliplatinSurvival RateOncologyAdenocarcinomaBiomarker (medicine)SurgeryCamptothecinFemaleFluorouracilbusinessColorectal Neoplasmsmedicine.drugFollow-Up StudiesAnnals of surgical oncology
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Elective surgery system strengthening: development, measurement, and validation of the surgical preparedness index across 1632 hospitals in 119 count…

2022

© 2022 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 licenseBackground: The 2015 Lancet Commission on global surgery identified surgery and anaesthesia as indispensable parts of holistic health-care systems. However, COVID-19 exposed the fragility of planned surgical services around the world, which have also been neglected in pandemic recovery planning. This study aimed to develop and validate a novel index to support local elective surgical system strengthening and address growing backlogs. Methods: First, we performed an international consultation through a four-stage consensus process to develop a multidomain index for hospital-level assess…

MaleHealth system resilience.*COVID-19/epidemiologySocial SciencesSağlık BilimleriGlobal HealthFundamental Medical SciencesClinical Medicine (MED)AnaesthesiasurgeryTIP GENEL & DAHİLİnisu navedene ključne riječiElective backlogMedicine and Health SciencesTOOLKlinik Tıp (MED)610 Medicine & healthMEDICINE GENERAL & INTERNAL11 Medical and Health SciencesKlinik Tıpsurgery; global surgery; health-care systemCovid19NIHR Global Health Unit on Global SurgeryGeneral MedicineHospitalsHospital preparedneTıphealth-care systemElective Surgical ProceduresHEALTH SYSTEMS*PandemicsMedicineFemaleLife Sciences & BiomedicineHumanHälso- och sjukvårdsorganisation hälsopolitik och hälsoekonomiTemel Tıp Bilimleri610 Medicine & healthglobal surgeryGenel TıpCAPACITYCOVIDSurg CollaborativeHospitalMedicine General & InternalGeneral & Internal MedicineHealth SciencesHumansPandemicsScience & TechnologyElective Surgical ProcedurePandemicKirurgiPlanned surgeryCOVID-19Health Care Service and Management Health Policy and Services and Health EconomyCLINICAL MEDICINESettore MED/18Settore MED/18 - Chirurgia Generaleelective surgeryHospital assessmentSystems strengtheningSurgeryHuman medicineMETHODOLOGY[SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
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Effects of pre-operative isolation on postoperative pulmonary complications after elective surgery: an international prospective cohort study

2021

We aimed to determine the impact of pre-operative isolation on postoperative pulmonary complications after elective surgery during the global SARS-CoV-2 pandemic. We performed an international prospective cohort study including patients undergoing elective surgery in October 2020. Isolation was defined as the period before surgery during which patients did not leave their house or receive visitors from outside their household. The primary outcome was postoperative pulmonary complications, adjusted in multivariable models for measured confounders. Pre-defined sub-group analyses were performed for the primary outcome. A total of 96,454 patients from 114 countries were included and overall, 26…

Lung DiseasesMaleInternationalitySARS-Cov-2 ; COVID-19 ; surgery ; pathways ; pre-operative isolationSettore MED/18 - CHIRURGIA GENERALEVascular damage Radboud Institute for Health Sciences [Radboudumc 16]pathwaysLung DiseaseESTUDOS PROSPECTIVOSCohort StudiesPatient IsolationsurgeryPostoperative Complications80 and overProspective StudiesProspective cohort study610 Medicine & healthAged 80 and overSARS-Cov-2; COVID-19; surgery; pathways; pre-operative isolationIncidence (epidemiology)Treatment OutcomeElective Surgical ProceduresFemaleElective Surgical ProcedureCohort studyHumanpre-operative isolationmedicine.medical_specialtyIsolation (health care)SARS-Cov-2Preoperative careNOCOVID-19; SARS-Cov-2; pathways; pre-operative isolation; surgeryAnesthesiologyPreoperative CaremedicineHumansElective surgeryLS7_4AgedElective Surgical Procedurebusiness.industrypathwayCOVID-19SurgeryReconstructive and regenerative medicine Radboud Institute for Health Sciences [Radboudumc 10]Prospective StudieAnesthesiology and Pain MedicineHuman medicinePostoperative ComplicationCohort Studiebusiness[SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
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Risk factors for Coronavirus Disease 2019 (COVID-19) severity and mortality among solid cancer patients and impact of the disease on anticancer treat…

2020

Background Cancer patients are thought to have an increased risk of developing severe Coronavirus Disease 2019 (COVID-19) infection and of dying from the disease. In this work, predictive factors for COVID-19 severity and mortality in cancer patients were investigated. Patients and Methods In this large nationwide retro-prospective cohort study, we collected data on patients with solid tumours and COVID-19 diagnosed between March 1 and June 11, 2020. The primary endpoint was all-cause mortality and COVID-19 severity, defined as admission to an intensive care unit (ICU) and/or mechanical ventilation and/or death, was one of the secondary endpoints. Results From April 4 to June 11, 2020, 1289…

Male0301 basic medicineCancer Researchmedicine.medical_treatmentDiseaselaw.inventionCohort Studies0302 clinical medicineMechanical ventilationRisk FactorslawNeoplasmsMedicineProspective StudiesProspective cohort studyOriginal ResearchCancerIntensive care unit3. Good healthDeathOncology030220 oncology & carcinogenesisFemaleFranceImmunotherapyCohort studymedicine.medical_specialtychemotherapy. radiotherapyAntineoplastic Agents[SDV.CAN]Life Sciences [q-bio]/Cancer03 medical and health sciencesInternal medicineHumansChemotherapyIntensive care unitMortalityPandemicsAgedRetrospective StudiesChemotherapyRadiotherapySARS-CoV-2business.industryCancerCOVID-19Retrospective cohort studyOdds ratiomedicine.diseaseAged; Antineoplastic Agents/adverse effects; Antineoplastic Agents/therapeutic use; COVID-19/mortality; Cohort Studies; Female; France/epidemiology; Humans; Male; Neoplasms/mortality; Neoplasms/therapy; Neoplasms/virology; Pandemics; Prospective Studies; Retrospective Studies; Risk Factors; SARS-CoV-2/isolation & purification; COVID-19; Cancer; Chemotherapy; Death; Immunotherapy; Intensive care unit; Mechanical ventilation; Mortality; Radiotherapy030104 developmental biologybusiness
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Predictors of surgical outcomes of minimally invasive right colectomy: the MERCY study

2022

PURPOSE: The optimal approach for minimally invasive (MIS) right colectomy remains under debate. This study aimed to describe surgical trends in the treatment of nonmetastatic right colon cancer and to identify predictors of short-term surgical outcomes. METHODS: A retrospective multicenter cohort study of Minimally-invasivE surgery for oncologic Right ColectomY (MERCY) was conducted on patients who underwent laparoscopic or robotic right colectomy between 2014 and 2020. Classification tree approach was used to describe the extracorporeal (EA) or intracorporeal (IA) anastomosis choice. Mixed-model regressions were used to identify patient- and surgery-related factors predictive of postopera…

Colonic NeoplasmAnastomosisAnastomosis SurgicalOperative TimeGastroenterologyRight colectomyIntracorporeal anastomosisRobotic surgeryIntracorporeal anastomosiColon cancerCohort StudiesTreatment OutcomeRobotic Surgical ProceduresRetrospective StudieMinimally invasive surgerySurgicalColonic NeoplasmsColon cancer; Intracorporeal anastomosis; Laparoscopy; Minimally invasive surgery; Right colectomy; Robotic surgery; Anastomosis Surgical; Cohort Studies; Colectomy; Humans; Operative Time; Retrospective Studies; Treatment Outcome; Colonic Neoplasms; Laparoscopy; Robotic Surgical ProceduresHumansLaparoscopyCohort StudieColectomyHumanRetrospective Studies
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Impact of operation duration on postoperative outcomes of minimally-invasive right colectomy

2022

Aim: Operation time (OT) is a key operational factor influencing surgical outcomes. The present study aimed to analyse whether OT impacts on short-term outcomes of minimally-invasive right colectomies by assessing the role of surgical approach (robotic [RRC] or laparoscopic right colectomy [LRC]), and type of ileocolic anastomosis (i.e., intracorporal [IA] or extra-corporal anastomosis [EA]). Methods: This was a retrospective analysis of the Minimally-invasivE surgery for oncological Right ColectomY (MERCY) Study Group database, which included adult patients with nonmetastatic right colon adenocarcinoma operated on by oncological RRC or LRC between January 2014 and December 2020. Univariate…

right colectomyGastroenterologylaparoscopyrobotic right colectomyoperating timeminimally-invasive surgery
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SARS-CoV-2 infection and venous thromboembolism after surgery: an international prospective cohort study

2021

SARS-CoV-2 has been associated with an increased rate of venous thromboembolism in critically ill patients. Since surgical patients are already at higher risk of venous thromboembolism than general populations, this study aimed to determine if patients with peri-operative or prior SARS-CoV-2 were at further increased risk of venous thromboembolism. We conducted a planned sub-study and analysis from an international, multicentre, prospective cohort study of elective and emergency patients undergoing surgery during October 2020. Patients from all surgical specialties were included. The primary outcome measure was venous thromboembolism (pulmonary embolism or deep vein thrombosis) within 30 da…

Malepulmonary embolismInternationalitySettore MED/18 - CHIRURGIA GENERALEDeep veinVascular damage Radboud Institute for Health Sciences [Radboudumc 16]infectious diseasesCardiovascularSARS‐CoV‐2surgeryCOVID-19 ; SARS-CoV-2 ; deep vein thrombosis ; pulmonary embolism ; venous thromboembolismCohort StudiesPostoperative ComplicationsAnesthesiologyMedicine and Health SciencesProspective Studies610 Medicine & healthProspective cohort studyLung11 Medical and Health SciencesConfoundingHematologyMiddle AgedThrombosis17 Psychology and Cognitive SciencesCOVID-19; deep vein thrombosis; pulmonary embolism; SARS-CoV-2; venous thromboembolismPulmonary embolismCOVID-19; SARS-CoV-2; deep vein thrombosis; pulmonary embolism; venous thromboembolism.medicine.anatomical_structureCohortCOVID-19/complicationsPostoperative Complications/etiologyOriginal ArticleFemalePatient SafetyLife Sciences & BiomedicineCOVID-19; SARS-CoV-2; deep vein thrombosis; pulmonary embolism; venous thromboembolismHumanAdultmedicine.medical_specialtyAdolescentClinical Sciencesvenous thromboembolism610 Medicine & healthGlobalSurg CollaborativeVenous Thromboembolism/etiologydeep vein thrombosisNOCOVIDSurg CollaborativeYoung AdultMedicine General & InternalAge DistributionClinical ResearchCOVID‐19General & Internal MedicinemedicineHumansSex DistributionAgedScience & Technologybusiness.industrySARS-CoV-2PreventionNeurosciencesdeep vein thrombosiCOVID-19PneumoniaOdds ratioOriginal Articlesmedicine.diseaseSurgeryReconstructive and regenerative medicine Radboud Institute for Health Sciences [Radboudumc 10]Prospective StudieGood Health and Well BeingAnesthesiology and Pain MedicineHuman medicinePostoperative ComplicationCohort StudiebusinessVenous thromboembolism[SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
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Conversion to Open Surgery During Minimally Invasive Right Colectomy for Cancer: Results from a Large Multinational European Study

2023

: Background: The risk of conversion to open surgery is inevitably present during any minimally invasive colorectal surgical procedure. Conversions have been associated with adverse postoperative and oncologic outcomes. No previous study has evaluated the specific causes and consequences of conversion during a minimally invasive right colectomy (MIS-RC). Materials and Methods: We analyzed the Minimally invasivE surgery for oncologic Right ColectomY (MERCY) study database including patients who underwent laparoscopic or robotic RC because of colon cancer between 2014 and 2020. Descriptive analyses were performed to determine the different reasons for conversion. Uni- and multivariate logisti…

Minimally InvasivE surgerycolon cancerright colectomyrobotic surgerylaparoscopySurgeryconversion
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