- Goethe-Universität Frankfurt am Main, Medizin, Department MemberUniversità degli Studi di Milano-Bicocca, Medicina e Chirurgia, Department Memberadd
- My name is Konstantinos Panagiotis RODITIS, born on 12-10-1982 in Rhodes, Greece. I live in Halandri, Athens. Greece.... moreMy name is Konstantinos Panagiotis RODITIS, born on 12-10-1982 in Rhodes, Greece. I live in Halandri, Athens. Greece. I am a specialist in Vascular and Endovascular Surgery practicing at Red Cross Hospital, Athens, Greece.edit
- Assoc. Prof. Spyros Vasdekis MD, PhD, DIC, Prof. Anastasios Machairas MD, PhD, Univ.-Prof.Dr.med. Thomas Schmitz-Rixen, Prof. Helen Giamarellou, MD, PhD, Prof. Christos D. Liapis, MD, FACS, FRCS, FEBVS, Dr. Nickolas Kontorinis MBBS, FRACP, Dr. Dimitris Mavros, MD, PhDedit
Introduction: Intraoperative adverse events (iAEs) occur and have the potential to impact the postoperative course. However, iAEs are underreported and are not routinely collected in the contemporary surgical literature. There is no... more
Introduction:
Intraoperative adverse events (iAEs) occur and have the potential to impact the postoperative course. However, iAEs are underreported and are not routinely collected in the contemporary surgical literature. There is no widely utilized system for the collection of essential aspects of iAEs, and there is no established database for the standardization and dissemination of this data that likely have implications for outcomes and patient safety. The Intraoperative Complication Assessment and Reporting with Universal Standards (ICARUS) Global Surgical Collaboration initiated a global effort to address these shortcomings, and the establishment of an adverse event data collection system is an essential step. In this study, we present the core-set variables for collecting iAEs that were based on the globally validated ICARUS criteria for surgical/interventional and anesthesiologic intraoperative adverse event collection and reporting.
Material and Methods:
This article includes three tools to capture the essential aspects of iAEs. The core-set variables were developed from the globally validated ICARUS criteria for reporting iAEs (item 1). Next, the summary table was developed to guide researchers in summarizing the accumulated iAE data in item 1 (item 2). Finally, this article includes examples of the method and results sections to include in a manuscript reporting iAE data (item 3). Then, 5 scenarios demonstrating best practices for completing items 1–3 were presented both in prose and in a video produced by the ICARUS collaboration.
Dissemination:
This article provides the surgical community with the tools for collecting essential iAE data. The ICARUS collaboration has already published the 13 criteria for reporting surgical adverse events, but this article is unique and essential as it actually provides the tools for iAE collection. The study team plans to collect feedback for future directions of adverse event collection and reporting.
Highlights
This article represents a novel, fully-encompassing system for the data collection of intraoperative adverse events.
The presented core-set variables for reporting intraoperative adverse events are not based solely on our opinion, but rather are synthesized from the globally validated ICARUS criteria for reporting intraoperative adverse events.
Together, the included text, figures, and ICARUS collaboration-produced video should equip any surgeon, anesthesiologist, or nurse with the tools to properly collect intraoperative adverse event data.
Future directions include translation of this article to allow for the widest possible adoption of this important collection system.
Intraoperative adverse events (iAEs) occur and have the potential to impact the postoperative course. However, iAEs are underreported and are not routinely collected in the contemporary surgical literature. There is no widely utilized system for the collection of essential aspects of iAEs, and there is no established database for the standardization and dissemination of this data that likely have implications for outcomes and patient safety. The Intraoperative Complication Assessment and Reporting with Universal Standards (ICARUS) Global Surgical Collaboration initiated a global effort to address these shortcomings, and the establishment of an adverse event data collection system is an essential step. In this study, we present the core-set variables for collecting iAEs that were based on the globally validated ICARUS criteria for surgical/interventional and anesthesiologic intraoperative adverse event collection and reporting.
Material and Methods:
This article includes three tools to capture the essential aspects of iAEs. The core-set variables were developed from the globally validated ICARUS criteria for reporting iAEs (item 1). Next, the summary table was developed to guide researchers in summarizing the accumulated iAE data in item 1 (item 2). Finally, this article includes examples of the method and results sections to include in a manuscript reporting iAE data (item 3). Then, 5 scenarios demonstrating best practices for completing items 1–3 were presented both in prose and in a video produced by the ICARUS collaboration.
Dissemination:
This article provides the surgical community with the tools for collecting essential iAE data. The ICARUS collaboration has already published the 13 criteria for reporting surgical adverse events, but this article is unique and essential as it actually provides the tools for iAE collection. The study team plans to collect feedback for future directions of adverse event collection and reporting.
Highlights
This article represents a novel, fully-encompassing system for the data collection of intraoperative adverse events.
The presented core-set variables for reporting intraoperative adverse events are not based solely on our opinion, but rather are synthesized from the globally validated ICARUS criteria for reporting intraoperative adverse events.
Together, the included text, figures, and ICARUS collaboration-produced video should equip any surgeon, anesthesiologist, or nurse with the tools to properly collect intraoperative adverse event data.
Future directions include translation of this article to allow for the widest possible adoption of this important collection system.
Research Interests:
Purpose: We present a case of successful retrieval of a tearaway trocar that was accidentally lost during insertion through the right jugular vein and was trapped in the right atrium of the heart of a patient. Case report / technique:... more
Purpose: We present a case of successful retrieval of a tearaway trocar that was accidentally lost during insertion through
the right jugular vein and was trapped in the right atrium of the heart of a patient.
Case report / technique: Computed Tomography Venography (CTV) was first performed to identify the position of the lost
tearaway trocar. The patient was transferred to the angiographic suite and the trocar was brought up under fluoroscopic
guidance and was temporarily parked near the point of insertion. Transfer to the operating room followed, and open re-
moval was achieved. Successful removal was performed uneventfully, and patient was discharged the next day.
Conclusion: The collaboration of a vascular surgery and an interventional radiology team helped our patient to avoid a
major cardiovascular procedure. This is an example of the results that can be achieved when we cross the boundaries and
different specialists work together for the benefit of the patient.
the right jugular vein and was trapped in the right atrium of the heart of a patient.
Case report / technique: Computed Tomography Venography (CTV) was first performed to identify the position of the lost
tearaway trocar. The patient was transferred to the angiographic suite and the trocar was brought up under fluoroscopic
guidance and was temporarily parked near the point of insertion. Transfer to the operating room followed, and open re-
moval was achieved. Successful removal was performed uneventfully, and patient was discharged the next day.
Conclusion: The collaboration of a vascular surgery and an interventional radiology team helped our patient to avoid a
major cardiovascular procedure. This is an example of the results that can be achieved when we cross the boundaries and
different specialists work together for the benefit of the patient.
Research Interests: Vascular Surgery, Endovascular Therapy, Minimally Invasive Surgery, Interventional Radiology, Endovascular intervention, and 8 moreDialysis & CRRT, Dialysis Vascular Access, Endovascular Surgery, Diagnostic and Interventional Radiology, Vascular Access, Endovascular Procedures, foreign body, and Vascular and Endovascular Surgery
A 21 year old male with a penetrating right axillary bullet wound was transferred from a remote regional hospital. Digital subtraction angiography detected complete axillary artery transection, a large haematoma with displacement and... more
A 21 year old male with a penetrating right axillary bullet wound was transferred from a remote regional hospital. Digital subtraction angiography detected complete axillary artery transection, a large haematoma with displacement and vasospasm of both stumps.
Research Interests:
Background Multimorbidity poses a global challenge to healthcare delivery. This study aimed to describe the prevalence of multimorbidity, common disease combinations and outcomes in a contemporary cohort of patients undergoing major... more
Background Multimorbidity poses a global challenge to healthcare delivery. This study aimed to describe the prevalence of multimorbidity, common disease combinations and outcomes in a contemporary cohort of patients undergoing major abdominal surgery. Methods This was a pre-planned analysis of a prospective, multicentre, international study investigating cardiovascular complications after major abdominal surgery conducted in 446 hospitals in 29 countries across Europe. The primary outcome was 30-day postoperative mortality. The secondary outcome measure was the incidence of complications within 30 days of surgery. Results Of 24,227 patients, 7006 (28.9%) had one long-term condition and 10,486 (43.9%) had multimorbidity (two or more long-term health conditions). The most common conditions were primary cancer (39.6%); hypertension (37.9%); chronic kidney disease (17.4%); and diabetes (15.4%). Patients with multimorbidity had a higher incidence of frailty compared with patients ≤ 1 long-term health condition. Mortality was higher in patients with one long-term health condition (adjusted odds ratio 1.93 (95%CI 1.16-3.23)) and multimorbidity (adjusted odds ratio 2.22 (95%CI 1.35-3.64)). Frailty and ASA physical status 3-5 mediated an estimated 31.7% of the 30-day mortality in patients with one long-term health condition (adjusted odds ratio 1.30 (95%CI 1.12-1.51)) and an estimated 36.9% of the 30-day mortality in patients with multimorbidity (adjusted odds ratio 1.61 (95%CI 1.36-1.91)). There was no improvement in 30-day mortality in patients with multimorbidity who received pre-operative medical assessment. Conclusions Multimorbidity is common and outcomes are poor among surgical patients across Europe. Addressing multimorbidity in elective and emergency patients requires innovative strategies to account for frailty and disease control. The development of such strategies, that integrate care targeting whole surgical pathways to strengthen current systems, is urgently needed for multimorbid patients. Interventional trials are warranted to determine the effectiveness of targeted management for surgical patients with multimorbidity.
Research Interests:
Background: Decision-making when considering major lower limb amputation is complex and requires individualized outcome estimation. It is unknown how accurate healthcare professionals or relevant outcome prediction tools are at... more
Background: Decision-making when considering major lower limb amputation is complex and requires individualized outcome
estimation. It is unknown how accurate healthcare professionals or relevant outcome prediction tools are at predicting outcomes
at 1-year after major lower limb amputation.
Methods: An international, multicentre prospective observational study evaluating healthcare professional accuracy in predicting
outcomes 1 year after major lower limb amputation and evaluation of relevant outcome prediction tools identified in a systematic
search of the literature was undertaken. Observed outcomes at 1 year were compared with: healthcare professionals’ preoperative predictions of death (surgeons and anaesthetists), major lower limb amputation revision (surgeons) and ambulation (surgeons, specialist physiotherapists and vascular nurse practitioners); and probabilities calculated from relevant outcome prediction tools.
Results: A total of 537 patients and 2244 healthcare professional predictions of outcomes were included. Surgeons and
anaesthetists had acceptable discrimination (C-statistic = 0.715), calibration and overall performance (Brier score = 0.200) when
predicting 1-year death, but performed worse when predicting major lower limb amputation revision and ambulation (C- statistics = 0.627 and 0.662 respectively). Healthcare professionals overestimated the death and major lower limb amputation revision risks. Consultants outperformed trainees, especially when predicting ambulation. Allied healthcare professionals marginally outperformed surgeons in predicting ambulation. Two outcome prediction tools (C-statistics = 0.755 and 0.717, Brier scores = 0.158 and 0.178) outperformed healthcare professionals’ discrimination, calibration and overall performance in predicting death. Two outcome prediction tools for ambulation (C-statistics = 0.688 and 0.667) marginally outperformed healthcare professionals.
Conclusion: There is uncertainty in predicting 1-year outcomes following major lower limb amputation. Different professional groups
performed comparably in this study. Two outcome prediction tools for death and two for ambulation outperformed healthcare
professionals and may support shared decision-making.
estimation. It is unknown how accurate healthcare professionals or relevant outcome prediction tools are at predicting outcomes
at 1-year after major lower limb amputation.
Methods: An international, multicentre prospective observational study evaluating healthcare professional accuracy in predicting
outcomes 1 year after major lower limb amputation and evaluation of relevant outcome prediction tools identified in a systematic
search of the literature was undertaken. Observed outcomes at 1 year were compared with: healthcare professionals’ preoperative predictions of death (surgeons and anaesthetists), major lower limb amputation revision (surgeons) and ambulation (surgeons, specialist physiotherapists and vascular nurse practitioners); and probabilities calculated from relevant outcome prediction tools.
Results: A total of 537 patients and 2244 healthcare professional predictions of outcomes were included. Surgeons and
anaesthetists had acceptable discrimination (C-statistic = 0.715), calibration and overall performance (Brier score = 0.200) when
predicting 1-year death, but performed worse when predicting major lower limb amputation revision and ambulation (C- statistics = 0.627 and 0.662 respectively). Healthcare professionals overestimated the death and major lower limb amputation revision risks. Consultants outperformed trainees, especially when predicting ambulation. Allied healthcare professionals marginally outperformed surgeons in predicting ambulation. Two outcome prediction tools (C-statistics = 0.755 and 0.717, Brier scores = 0.158 and 0.178) outperformed healthcare professionals’ discrimination, calibration and overall performance in predicting death. Two outcome prediction tools for ambulation (C-statistics = 0.688 and 0.667) marginally outperformed healthcare professionals.
Conclusion: There is uncertainty in predicting 1-year outcomes following major lower limb amputation. Different professional groups
performed comparably in this study. Two outcome prediction tools for death and two for ambulation outperformed healthcare
professionals and may support shared decision-making.
Research Interests:
Cardiovascular complications after major surgery are associated with increases in morbidity and mortality. There is confusion over definitions of cardiac injury or complications, and variability in the assessment and management of... more
Cardiovascular complications after major surgery are associated with increases in morbidity and mortality. There is confusion over definitions of cardiac injury or complications, and variability in the assessment and management of patients. This international prospective cohort study aimed to define the incidence and timing of these complications and to investigate their impact on 30-day all-cause mortality. We performed a prospective, international cohort study between January 2022 and May 2022. Data were collected on consecutive patients undergoing major abdominal surgery in 446 hospitals from 28 countries across Europe. The primary outcome measure was cardiovascular complications as defined by the Standardised Endpoints for Perioperative Medicine-Core Outcome Measures for Perioperative and Anaesthetic Care initiative up to 30 days after surgery. The secondary outcome was 30-day postoperative mortality. This study included 24,203 patients, of whom 611 (2.5%) developed cardiovascular complications. In total, 458 (1.9%) patients died within 30 days of surgery, of which 123 (26.9%) deaths were judged to be cardiac-related. Mortality rates were higher in patients who developed postoperative cardiovascular complications than in those who did not (19.8% vs. 1.4%), which persisted after risk adjustment (hazard ratio (95%CI) 4.15 (3.14–5.48)). We estimated an absolute risk reduction (95%CI) of 0.4 (0.3–0.5) in mortality in the absence of all cardiovascular complications. This would confer a relative risk reduction in mortality of 21.1% if all cardiovascular complications were prevented. Postoperative cardiovascular complications are relatively common and occur early after major abdominal surgery. However, over 1 in 5 postoperative deaths were attributable to these complications, highlighting an important area for future randomised trials.
Research Interests:
Context Arteriovenous malformations (AVMs) of the temporal skin area, though less common than cerebral AVMs, pose significant challenges in terms of cosmetic and functional outcomes. Over the past decade, substantial advancements have... more
Context
Arteriovenous malformations (AVMs) of the temporal skin area, though less common than cerebral AVMs, pose significant challenges in terms of cosmetic and functional outcomes. Over the past decade, substantial advancements have been made in the understanding and management of these lesions. This paper aims to review the latest developments in the pathophysiology, diagnosis, and treatment of temporal skin AVMs, and to explore ongoing challenges and emerging research directions.
Evidence Acquisition
A comprehensive literature search was conducted using databases such as PubMed, Scopus, and Google Scholar. The focus was on research published in the past ten years related to temporal skin AVMs, including reviews, clinical studies, and advancements in treatment techniques.
Results
The review discusses the evolution in understanding the pathophysiology of temporal skin AVMs, improvements in diagnostic imaging techniques, and the refinement of surgical and non-surgical treatment approaches. The outcomes, including cosmetic and functional results, and complications associated with various treatments, are also presented.
Conclusions
The management of temporal skin AVMs has benefited from multidisciplinary approaches, combining surgery, interventional radiology, and dermatology. However, challenges remain in achieving optimal cosmetic and functional outcomes, necessitating ongoing research and innovation.
Arteriovenous malformations (AVMs) of the temporal skin area, though less common than cerebral AVMs, pose significant challenges in terms of cosmetic and functional outcomes. Over the past decade, substantial advancements have been made in the understanding and management of these lesions. This paper aims to review the latest developments in the pathophysiology, diagnosis, and treatment of temporal skin AVMs, and to explore ongoing challenges and emerging research directions.
Evidence Acquisition
A comprehensive literature search was conducted using databases such as PubMed, Scopus, and Google Scholar. The focus was on research published in the past ten years related to temporal skin AVMs, including reviews, clinical studies, and advancements in treatment techniques.
Results
The review discusses the evolution in understanding the pathophysiology of temporal skin AVMs, improvements in diagnostic imaging techniques, and the refinement of surgical and non-surgical treatment approaches. The outcomes, including cosmetic and functional results, and complications associated with various treatments, are also presented.
Conclusions
The management of temporal skin AVMs has benefited from multidisciplinary approaches, combining surgery, interventional radiology, and dermatology. However, challenges remain in achieving optimal cosmetic and functional outcomes, necessitating ongoing research and innovation.
Research Interests:
Background/Objectives: this systematic review aims to explore the efficacy and safety of the laparoscopic ligation of the inferior mesenteric artery (IMA) as an emerging trend for addressing a type II endoleak following endovascular... more
Background/Objectives: this systematic review aims to explore the efficacy and safety of
the laparoscopic ligation of the inferior mesenteric artery (IMA) as an emerging trend for addressing
a type II endoleak following endovascular aortic aneurysm repair (EVAR). Methods: A comprehensive literature search was conducted across several databases including Medline, Scopus, and
the Cochrane Central Register of Controlled Trials, adhering to the PRISMA guidelines. The search
focused on articles reporting on the laparoscopic ligation of the IMA for the treatment of a type
II endoleak post-EVAR. Data were extracted regarding study characteristics, patient demographics, technical success rates, postoperative outcomes, and follow-up results. Results: Our analysis
included ten case studies and two retrospective cohort studies, comprising a total of 26 patients
who underwent a laparoscopic ligation of the IMA between 2000 and 2023. The mean age of the
cohort was 72.3 years, with a male predominance (92.3%). The mean AAA diameter at the time of intervention was 69.7 mm. The technique demonstrated a high technical success rate of 92.3%, with a mean procedure time of 118.4 min and minimal blood loss. The average follow-up duration was 19.9 months, with 73% of patients experiencing regression of the aneurysmal sac, and no reports of an IMA-related type II endoleak during the follow-up period.
Conclusions: The laparoscopic ligation of the IMA for a type II endoleak following EVAR presents a promising, minimally invasive alternative with high technical success rates and favorable postoperative outcomes. Despite
its potential advantages, including reduced contrast agent use and radiation exposure, its application remains limited to specialized centers. The findings suggest the need for further research in larger prospective studies to validate the effectiveness of this procedure and potentially broaden its clinical adoption.
cohort was 72.3 years, with a male predominance (92.3%). The mean AAA diameter at the time of intervention was 69.7 mm. The technique demonstrated a high technical success rate of 92.3%, with a mean procedure time of 118.4 min and minimal blood loss. The average follow-up duration was 19.9 months, with 73% of patients experiencing regression of the aneurysmal sac, and no reports of an IMA-related type II endoleak during the follow-up period.
Conclusions: The laparoscopic ligation of the IMA for a type II endoleak following EVAR presents a promising, minimally invasive alternative with high technical success rates and favorable postoperative outcomes. Despite
its potential advantages, including reduced contrast agent use and radiation exposure, its application remains limited to specialized centers. The findings suggest the need for further research in larger prospective studies to validate the effectiveness of this procedure and potentially broaden its clinical adoption.
Research Interests: Endovascular Therapy, Abdominal Aortic Aneurysms, Endovascular intervention, Aortic Disease, Endovascular Therapy Outcomes, and 7 moreEndovascular Surgery, Abdominal Aortic Aneurysm, Endoluminal Repair of Abdominal Aortic Aneurysms, Endovascular Procedures, Endoleak, Postoperative Complications, and Vascular and Endovascular Surgery
The exploration of miRNA therapies in the realm of PAD opens new horizons, holding the potential to revolutionize vascular health and inspire optimism for enhanced clinical outcomes and improved patient well-being. As research... more
The exploration of miRNA therapies in the realm of PAD
opens new horizons, holding the potential to revolutionize
vascular health and inspire optimism for enhanced clinical
outcomes and improved patient well-being. As research pro-gresses, the confluence of mechanotransduction, miRNAs, and therapeutic modalities is likely to reshape the landscape
of PAD management, ushering in an era characterized by precision medicine in cardiovascular health.
outcomes and improved patient well-being. As research pro-gresses, the confluence of mechanotransduction, miRNAs, and therapeutic modalities is likely to reshape the landscape
of PAD management, ushering in an era characterized by precision medicine in cardiovascular health.
Research Interests:
Background Healthcare cannot achieve net-zero carbon without addressing operating theatres. The aim of this study was to prioritize feasible interventions to reduce the environmental impact of operating theatres. Methods This study... more
Background Healthcare cannot achieve net-zero carbon without addressing operating theatres. The aim of this study was to prioritize feasible interventions to reduce the environmental impact of operating theatres. Methods This study adopted a four-phase Delphi consensus co-prioritization methodology. In phase 1, a systematic review of published interventions and global consultation of perioperative healthcare professionals were used to longlist interventions. In phase 2, iterative thematic analysis consolidated comparable interventions into a shortlist. In phase 3, the shortlist was co-prioritized based on patient and clinician views on acceptability, feasibility, and safety. In phase 4, ranked lists of interventions were presented by their relevance to high-income countries and low–middle-income countries. Results In phase 1, 43 interventions were identified, which had low uptake in practice according to 3042 professionals globally. In phase 2, a shortlist of 15 intervention domains...
Research Interests: Orthopedic Surgery, Cardiothoracic Surgery, Global Health, Environmental Sustainability, Global Health Policy, and 15 moreMedicine, Cardiac and Thoracic Surgery, Laparoscopic Surgery, Cardiac Surgery, Oral and Maxillofacial Surgery, Green Energy, Cataract surgery, Oral Surgery, Pediatric Surgery, Global Surgery, Delphi method, Orthopaedic Surgery, Green and Sustainability Practices, Head and Neck Surgery, and Medical and Health Sciences
Research Interests:
Research Interests: Surgery, Public Management, Public Health, Medicine, Public Policy Analysis, and 15 moreGeneral Surgery, Health Systems Strengthening, History of Surgery, Medicine and Surgery, Lancet, Preparedness, Global Surgery, Pandemic, Elective Surgery, Public Policy, The Lancet, Coronavirus COVID-19, CoVid, COVID-19 PANDEMIC, and Medical and Health Sciences
Research Interests:
Research Interests:
Basal cell carcinoma (BCC) is the most commonly diagnosed cancer in humans, usually affecting elderly Caucasian men and skin regions mostly exposed to the sun, that rarely metastasizes. We report an unusual and aggressive case of... more
Basal cell carcinoma (BCC) is the most commonly diagnosed cancer in humans, usually affecting elderly Caucasian men and skin regions mostly exposed to the sun, that rarely metastasizes. We report an unusual and aggressive case of multiple, non-syndromic metastatic BCC with an uncommon primary site in the chest and pulmonary metastases, treated successfully with surgery and vismodegib. A 51-year-old woman presented with a large pigmentary lesion of the chest, close to the sternum. She had the lesion for > 25 years and lately noticed multiple facial lesions. The diagnosis of multiple BCC was suspected and a punch biopsy of the primary lesion was performed. Diagnosis was confirmed by immunohistochemistry (BerEp4+, EMA− phenotype). After excision, staging with a thorax computed tomography scan revealed metastatic micro-nodules in the left lung, confirmed histologically after video-assisted thoracic surgical biopsy. Adjuvant chemotherapy with vismodegib was proposed and administered. ...
Research Interests:
Truth is “the first casualty of war”. Many refugees come from war zones, and there is little independent and even less empirical research into the emerging refugee situation in Europe. The authors strongly feel that available data should... more
Truth is “the first casualty of war”. Many refugees come from war zones, and there is little independent and even less empirical research into the emerging refugee situation in Europe. The authors strongly feel that available data should be presented without bias so that readers may make their own judgment. First and foremost, the authors would like to applaud the countless volunteers including health professionals providing assistance to refugees across Europe and beyond. Many are going above and beyond the call of their professional duty to provide healthcare to refugees. The main purpose of this article is to describe the current refugee crisis. However, those providing this valuable assistance should be recognized.
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Research Interests:
Research Interests: Surgery, Neurosurgery, Vascular Surgery, Medicine, General Surgery, and 15 moreAnaesthesia, Pulmonary Embolism, Thromboembolism, Clinical Sciences, Cirugia, DVT Prevention, Odds ratio, Venous thromboembolism, Chirurgia, Neurosciences, Cirugía, Deep Venous Thrombosis, Chirurgie, Prospective Cohort Study, and CoVid
Research Interests: Neurosurgery, Epidemiology, Incidence Geometry, Medicine, General Surgery, and 15 moreAnaesthesia, Clinical Sciences, Cirugia, Isolation, Pathways, Carotid Endarterectomy, Chirurgia, Aortic Surgery, Peripheral Arterial Disease, Elective Surgery, Neurosciences, Cirugía, Chirurgie, Arteriogenesis, and CoVid
Research Interests:
BackgroundThe Coronavirus Disease 2019 (COVID-19) pandemic is having an unprecedented impact on healthcare delivery. This international qualitative study captured the global impact on vascular patient care during the first pandemic... more
BackgroundThe Coronavirus Disease 2019 (COVID-19) pandemic is having an unprecedented impact on healthcare delivery. This international qualitative study captured the global impact on vascular patient care during the first pandemic ‘wave’.MethodsAn online structured survey was used to collect regular unit-level data regarding the modification to a wide range of vascular services and treatment pathways on a global scale.ResultsThe survey commenced on 23rd March 2020 worldwide. Over six weeks, 249 vascular units took part in 53 countries (465 individual responses). Overall, 65% of units stopped carotid surgery for anyone except patients with crescendo symptoms or offered surgery on a case-by-case basis, 25% only intervened for symptomatic aortic aneurysms cancelling all ‘elective’ repairs. For patients with symptomatic peripheral arterial disease 60% of units moved to an endovascular-first strategy. For patients who had previously undergone endovascular aortic aneurysm repair, 31.8% o...
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Research Interests:
ABSTRACT
Research Interests:
In order to investigate the hypothesis that bacterial translocation from the intestine contributes to death after multiple organ dysfunction syndrome (MODS), a sterile MODS model was studied. MODS was induced in 139 male C57BL/6 mice by... more
In order to investigate the hypothesis that bacterial translocation from the intestine contributes to death after multiple organ dysfunction syndrome (MODS), a sterile MODS model was studied. MODS was induced in 139 male C57BL/6 mice by lipopolysaccharide (LPS) (endotoxin) infusion followed by zymozan infusion in four groups: Α, sham-operation; Β, LPS; C, LPS + 0.8 g/kg zymozan; and D, LPS + 1.2 g/kg zymozan. Mice were sacrificed at 24 and 48 h for quantitative tissue cultures, isolation, and stimulation of splenocytes, measurement of apoptosis of lymphocytes and macrophages, and of serum LPS and survival. Some mice with MODS were treated with the antibiotic ertapenem. Enterobacteriaceae and Enterococcus spp were isolated from tissues. Group D had the highest bacterial load and the shortest survival. Release of interleukin-10, of interleukin-17, and of intgerferon-γ by splenocytes and the rate of apoptosis did not concur with immune paralysis. Serum LPS concentrations were higher in mice with MODS versus controls. Ertapenem prolonged survival and decreased the bacterial load. Bacterial translocation seems to be an important contributor leading from MODS to death and suggests a change in therapy towards adaptation of antimicrobial treatment upon early signs of MODS.
Research Interests:
A 71-year-old female patient with cholelithiasis who had undergone laparoscopic cholecystectomy was admitted with obstructive jaundice (total bilirubin ∼6 mg/dL) three months later. An ERCP was performed, in which a gallstone was found,... more
A 71-year-old female patient with cholelithiasis who had undergone laparoscopic cholecystectomy was admitted with obstructive jaundice (total bilirubin ∼6 mg/dL) three months later. An ERCP was performed, in which a gallstone was found, followed by a sphincterotomy and cleansing of the bile duct. Due to deterioration of jaundice (>25 mg/dL), a new, unsuccessful ERCP and stent placement was carried out. Because of ongoing cardiac failure, she underwent an echocardiogram which revealed restrictive cardiomyopathy possibly due to amyloidosis. A liver biopsy was performed, which was positive for amyloid deposits in the liver, and the diagnosis was confirmed by the detection of monoclonal IgG protein in urine. The patient's jaundice gradually deteriorated and she died one week later from hepatic insufficiency.
Research Interests:
Basal cell carcinoma (BCC) is the most commonly diagnosed cancer in humans, usually affecting elderly Caucasian men and skin regions mostly exposed to the sun, that rarely metastasizes. We report an unusual and aggressive case of... more
Basal cell carcinoma (BCC) is the most commonly diagnosed cancer in humans, usually affecting elderly Caucasian men and skin regions mostly exposed to the sun, that rarely metastasizes. We report an unusual and aggressive case of multiple, non-syndromic metastatic BCC with an uncommon primary site in the chest and pulmonary metastases, treated successfully with surgery and vismodegib. A 51-year-old woman presented with a large pigmentary lesion of the chest, close to the sternum. She had the lesion for > 25 years and lately noticed multiple facial lesions. The diagnosis of multiple BCC was suspected and a punch biopsy of the primary lesion was performed. Diagnosis was confirmed by immunohistochemistry (BerEp4+, EMA− phenotype). After excision, staging with a thorax computed tomography scan revealed metastatic micro-nodules in the left lung, confirmed histologically after video-assisted thoracic surgical biopsy. Adjuvant chemotherapy with vismodegib was proposed and administered. At 30 days follow-up, thorax computed tomography scan was unaltered and her facial lesions showed significant regression. Although prognosis remains poor, early diagnosis and prompt management complimented by novel biological agents, like vismodegib, targeting disease pathogenesis, seems to bring promising results.
Research Interests:
Peri-operative SARS-CoV-2 infection increases postoperative mortality. The aim of this study was to determine the optimal duration of planned delay before surgery in patients who have had SARS-CoV-2 infection. This international,... more
Peri-operative SARS-CoV-2 infection increases postoperative mortality. The aim of this study was to determine the optimal duration of planned delay before surgery in patients who have had SARS-CoV-2 infection. This international, multicentre, prospective cohort study included patients undergoing elective or emergency surgery during October 2020. Surgical patients with pre-operative SARS-CoV-2 infection were compared with those without previous SARS-CoV-2 infection. The primary outcome measure was 30-day postoperative mortality. Logistic regression models were used to calculate adjusted 30-day mortality rates stratified by time from diagnosis of SARS-CoV-2 infection to surgery. Among 140,231 patients (116 countries), 3127 patients (2.2%) had a pre-operative SARS-CoV-2 diagnosis. Adjusted 30-day mortality in patients without SARS-CoV-2 infection was 1.5% (95%CI 1.4-1.5). In patients with a pre-operative SARS-CoV-2 diagnosis, mortality was increased in patients having surgery within 0-2 weeks, 3-4 weeks and 5-6 weeks of the diagnosis (odds ratio (95%CI) 4.1% (3.3-4.8), 3.9% (2.6-5.1) and 3.6% (2.0-5.2), respectively). Surgery performed ≥ 7 weeks after SARS-CoV-2 diagnosis was associated with a similar mortality risk to baseline (odds ratio (95%CI) 1.5% (0.9-2.1%)). After a ≥ 7 week delay in undertaking surgery following SARS-CoV-2 infection, patients with ongoing symptoms had a higher mortality than patients whose symptoms had resolved or who had been asymptomatic (6.0% (95%CI 3.2-8.7) vs. 2.4% (95%CI 1.4-3.4) vs.