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Gorjanc J, Mekjavic IB. Re: "A Photographic Case of Frostbite Treated with Delayed Hyperbaric Oxygen Therapy" by Davis et al. High Alt Med Biol 2022; 23:198-199. [PMID: 35708529 DOI: 10.1089/ham.2022.0032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Jurij Gorjanc
- Department of Surgery, Hospital of St. John of God, St.Veit/Glan, Austria
| | - Igor B Mekjavic
- Department of Automation, Biocybernetics and Robotics, Jozef Stefan Institute, Ljubljana, Slovenia.,Department of Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, British Columbia, Canada
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Gorjanc J, Edlinger R, Rosenkranz M, Tschmelitsch J. O30 THE INCIDENCE OF INCISIONAL HERNIA AT OSTOMY-REVERSAL SITE. Br J Surg 2021. [DOI: 10.1093/bjs/znab396.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Aim
The purpose of this study was to evaluate the rate of incisional hernias at the ostomy site after reversal of the ostomy.
Material and Methods
We used retrospectively compiled database of patients who had undergone ostomy formation and ist reversal. All patients had their surgery performed between Jan. 2011 and December 2019. Patients history, added by clinical examination and CT-scan were performed in order to identify the incidence of incisional hernias. Different variables, like gender, surgical site infection (SSI) and BMI were evaluated as possible risk factors for hernia occurrence.
Results
Among totally included 224 patients in the study, 190 of all patients had reversal after loop-ileostomy (85%) and 34 patients had reversal after loop-colostomy (15%). Among all stoma reversal patients, 12,8 % developed incisional hernia at the stoma reversal site (n = 28). The incisional hernia occurrence at the ostomy reversal site was present in 20,0% in patients with clinically relevant SSI and only in 9,4% in patients where SSI was absent (p = 0,03). There was no statistical significance in hernia occurrence between both genders and among patients with low, normal and high BMI in our cohort of patients.
Conclusions
Incisional hernia after ostomy reversal is a common late surgical complication. All measurements that reduce SSI at the reversal site are important for lower hernia incidence. Prophylactic mesh implantation at stoma reversal sites may be considered in these patients.
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Affiliation(s)
- Jurij Gorjanc
- General Public Hospital of the Brothers of St. John of God, Surgery, St. Veit/Glan, Austria
| | - Raphael Edlinger
- General Public Hospital of the Brothers of St. John of God., Surgery, St. Veit/Glan, Austria
| | - Magdalena Rosenkranz
- General Public Hospital of the Brothers of St. John of God, St. Veit/Glan, Austria
| | - Jörg Tschmelitsch
- General Public Hospital of the Brothers of St. John of God, Surgery, St. Veit/Glan, Austria
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Köckerling F, Sheen AJ, Berrevoet F, Campanelli G, Cuccurullo D, Fortelny R, Friis-Andersen H, Gillion JF, Gorjanc J, Kopelman D, Lopez-Cano M, Morales-Conde S, Österberg J, Reinpold W, Simmermacher RKJ, Smietanski M, Weyhe D, Simons MP. The reality of general surgery training and increased complexity of abdominal wall hernia surgery. Hernia 2019; 23:1081-1091. [PMID: 31754953 PMCID: PMC6938469 DOI: 10.1007/s10029-019-02062-z] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 09/27/2019] [Indexed: 02/06/2023]
Abstract
INTRODUCTION The Accreditation and Certification of Hernia Centers and Surgeons (ACCESS) Group of the European Hernia Society (EHS) recognizes that there is a growing need to train specialist abdominal wall surgeons. The most important and relevant argument for this proposal and statement is the growing acceptance of the increasing complexity of abdominal wall surgery due to newer techniques, more challenging cases and the required 'tailored' approach to such surgery. There is now also an increasing public awareness with social media, whereby optimal treatment results are demanded by patients. However, to date the complexity of abdominal wall surgery has not been properly or adequately defined in the current literature. METHODS A systematic search of the available literature was performed in May 2019 using Medline, PubMed, Scopus, Embase, Springer Link, and the Cochrane Library, with 75 publications identified as relevant. In addition, an analysis of data from the Herniamed Hernia Registry was performed. The percentage of patients with hernia- or patient-related characteristics which unfavorably impacted the outcome of inguinal and incisional hernia repair was also calculated. RESULTS All present guidelines for abdominal wall surgery recommend the utilization of a 'tailored' approach. This relies on the prerequisite that any surgical technique used has already been mastered, as well as the recognized learning curves for each of the several techniques that can be used for both inguinal hernia (Lichtenstein, TEP, TAPP, Shouldice) and incisional hernia repairs (laparoscopic IPOM, open sublay, open IPOM, open onlay, open or endoscopic component separation technique). Other hernia- and patient-related characteristics that have recognized complexity include emergency surgery, obesity, recurrent hernias, bilateral inguinal hernias, groin hernia in women, scrotal hernias, large defects, high ASA scores, > 80 years of age, increased medical risk factors and previous lower abdominal surgery. The proportion of patients with at least one of these characteristics in the Herniamed Hernia Registry in the case of both inguinal and incisional hernia is noted to be relatively high at around 70%. In general surgery training approximately 50-100 hernia repairs on average are performed by each trainee, with around only 25 laparo-endoscopic procedures. CONCLUSION A tailored approach is now employed and seen more so in hernia surgery and this fact is referred to and highlighted in the contemporaneous hernia guidelines published to date. In addition, with the increasing complexity of abdominal wall surgery, the number of procedures actually performed by trainees is no longer considered adequate to overcome any recognized learning curve. Therefore, to supplement general surgery training young surgeons should be offered a clinical fellowship to obtain an additional qualification as an abdominal wall surgeon and thus improve their clinical and operative experience under supervision in this field. Practicing general surgeons with a special interest in hernia surgery can undertake intensive further training in this area by participating in clinical work shadowing in hernia centers, workshops and congresses.
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Affiliation(s)
- F Köckerling
- Department of Surgery and Center for Minimally Invasive Surgery, Academic Teaching Hospital of Charité Medical School, Vivantes Hospital, Neue Bergstrasse 6, 13585, Berlin, Germany.
| | - A J Sheen
- Department of Surgery, Manchester University NHS Foundation Trust, Manchester, M13 9WL, UK
| | - F Berrevoet
- Department of General and HPB Surgery and Liver Transplantation, Universitair Ziekenhuis Gent, C. Heymanslaan 10, 9000, Ghent, Belgium
| | - G Campanelli
- General and Day Surgery Unit, Center of Research and High Specialization for the Pathologies of Abdominal Wall and Surgical Treatment and Repair of Abdominal Hernia, Milano Hernia Center, Instituto Clinico Sant'Ambrogio, University of Insurbria, Milan, Italy
| | - D Cuccurullo
- Department of General, Laparoscopic and Robotic Surgery, Chief Week Surgery Departmental Unit, A.O. dei Colli Monaldi Hospital Naples, Naples, Italy
| | - R Fortelny
- Department of General, Visceral and Oncological Surgery, Wilhelminenspital, 1160, Vienna, Austria
- Medical Faculty of Sigmund Freud University, 1020, Vienna, Austria
| | - H Friis-Andersen
- Surgical Department, Horsens Regional Hospital, Aarhus University, Sundvey 30, 8700, Horsens, Denmark
| | - J F Gillion
- Unité de Chirurgie Viscérale, Hôpital Privé d'Antony, 1, Rue Velpeau, 92160, Antony, France
| | - J Gorjanc
- Department of Surgery, Krankenhaus der Barmherzigen Brüder, Spitalgasse 26, 9300, St. Veit an der Glan, Austria
| | - D Kopelman
- Department of Surgery Emek Medical Center, Afula, Israel
- Rappaport Faculty of Medicine, Technion, Israel Institute of Technology, Haifa, Israel
| | - M Lopez-Cano
- Abdominal Wall Surgery Unit, Department of General Surgery, Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, Passeig Vall d'Hebron 119-129, 08035, Barcelona, Spain
| | - S Morales-Conde
- Unit of Innovation in Minimally Invasive Surgery, University Hospital Virgen del Rocío, Av. Manuel Siurot, s/n, 41013, Seville, Spain
| | - J Österberg
- Department of Surgery, Mora Hospital, 79285, Mora, Sweden
| | - W Reinpold
- Wilhelmsburger Krankenhaus Gross-Sand, Gross-Sand 3, 21107, Hamburg, Germany
| | - R K J Simmermacher
- Department of Surgery, University Medical Center Utrecht, Heidelbergglaan 100, Utrecht, The Netherlands
| | - M Smietanski
- Department of General Surgery and Hernia Centre, Hospital in Puck, Medical University of Gdansk, Gdansk, Poland
| | - D Weyhe
- School of Medicine and Health Sciences, University Hospital for Visceral Surgery, Pius Hospital Oldenburg, Medical Campus University of Oldenburg, Georgstr. 12, 26121, Oldenburg, Germany
| | - M P Simons
- Department of Surgery, OLVG Hospital, Amsterdam, The Netherlands
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Gorjanc J, Morrison SA, McDonnell AC, Mekjavic PJ, Blagus R, Mekjavic IB. Ski-Everest (8848 m) Expedition: Digit Skin Temperature Responses to Cold Immersion May Reflect Susceptibility to Cold Injury. Wilderness Environ Med 2019; 30:141-149. [PMID: 30979538 DOI: 10.1016/j.wem.2019.01.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 01/01/2019] [Accepted: 01/31/2019] [Indexed: 11/25/2022]
Abstract
INTRODUCTION We tested the hypothesis that individual susceptibility to freezing cold injury might be reflected in an attenuated cold-induced vasodilatation (CIVD) response by comparing the CIVD responses of an elite alpinist with a history of freezing cold injury in the feet (case alpinist) with those of an age- and ability- matched noninjured alpinists control group (controls). According to this hypothesis, the vasomotor responses to a CIVD test of the case alpinist would represent a pathophysiological response when compared with the normal physiological response of a noninjured cohort. METHODS The case alpinist and the controls in the cohort group conducted a cold water immersion test comprising sequential immersion of a hand and foot for 5 min in 35°C water, followed by a 30-min immersion in 8°C water and a 10-min recovery period in room air. During this test we monitored the finger and toe skin temperatures. RESULTS The case alpinist had a significantly attenuated CIVD response and a lower skin temperature in all injured and noninjured digits during immersion (∼2°C lower than in the control group) and an attenuated recovery of finger skin temperatures (∼6°C lower than in the control group). CONCLUSIONS The attenuated CIVD response of the case alpinist may reflect a previously unrecognized enhanced susceptibility to frostbite. In addition to the poor vasomotor response observed in the injured toes, he also exhibited a poor vasomotor response in his noninjured fingers. The results of the present study indicate that a test of vasomotor activity during thermal stress may identify individuals predisposed to cold injury.
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Affiliation(s)
- Jurij Gorjanc
- Department of Surgery, Hospital of the Brothers of St. John of God, St.Veit/Glan, Austria.
| | | | - Adam C McDonnell
- Department of Automation, Biocybernetics and Robotics, Jožef Stefan Institute, Ljubljana, Slovenia
| | | | - Rok Blagus
- Institute for Biostatistics and Medical Informatics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Igor B Mekjavic
- Department of Automation, Biocybernetics and Robotics, Jožef Stefan Institute, Ljubljana, Slovenia; Department of Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, Canada
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Köckerling F, Sheen AJ, Berrevoet F, Campanelli G, Cuccurullo D, Fortelny R, Friis-Andersen H, Gillion JF, Gorjanc J, Kopelman D, Lopez-Cano M, Morales-Conde S, Österberg J, Reinpold W, Simmermacher RKJ, Smietanski M, Weyhe D, Simons MP. Accreditation and certification requirements for hernia centers and surgeons: the ACCESS project. Hernia 2019; 23:185-203. [PMID: 30671899 PMCID: PMC6456484 DOI: 10.1007/s10029-018-1873-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 12/11/2018] [Indexed: 12/15/2022]
Abstract
INTRODUCTION There is a need for hernia centers and specialist hernia surgeons because of the increasing complexity of hernia surgery procedures due to new techniques, more difficult cases and a tailored approach with an increasing public awareness demanding optimal treatment results. Therefore, the requirements for accredited/certified hernia centers and specialist hernia surgeons should be formulated by the international and national hernia societies, while taking account of the respective health care systems. METHODS The European Hernia Society (EHS) has appointed a working group composed of 18 hernia experts from all regions of Europe (ACCESS Group-Hernia Accreditation and Certification of Centers and Surgeons-Working Group) to formulate scientifically based requirements for hernia centers and specialist hernia surgeons while taking into consideration different health care systems. A consensus was reached on the key questions by means of a meeting, a telephone conference and the exchange of contributions. The requirements formulated below were deemed implementable by all participating hernia experts in their respective countries. RESULTS The ACCESS Group suggests for an adequately equipped hernia center the following requirements: (a) to be accredited/certified by a national or international hernia society, (b) to perform a higher case volume in all types of hernia surgery compared to an average general surgery department in their country, (c) to be staffed by experienced hernia surgeons who are beyond the learning curve for all types of hernia surgery recommended in the guidelines and are responsible for education and training of hernia surgery in their department, (d) to treat hernia patients according to the current guidelines and scientific recommendations, (e) to document each case prospectively in a registry or quality assurance database (f) to perform follow-up for comparison of their own results with benchmark data for continuous improvement of their treatment results and ensuring contribution to research in hernia treatment. To become a specialist hernia surgeon, the ACCESS Group suggests a general surgeon to master the learning curve of all open and laparo-endoscopic hernia procedures recommended in the guidelines, perform a high caseload and additionally to implement and fulfill the other requirements for a hernia center. CONCLUSION Based on the above requirements formulated by the European Hernia Society for accredited/certified hernia centers and hernia specialist surgeons, the national and international hernia societies can now develop their own programs, while taking account of their specific health care systems.
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Affiliation(s)
- F Köckerling
- Department of Surgery, Center for Minimally Invasive Surgery, Academic Teaching Hospital of Charité Medical School, Vivantes Hospital, Neue Bergstrasse 6, 13585, Berlin, Germany.
| | - A J Sheen
- Associate Clinical Head of Division (Surgery), Manchester University NHS Foundation Trust, Manchester, UK
| | - F Berrevoet
- General and HPB Surgery and Liver Transplantations, Pancreas and Abdominal Wall Specialist, Universitair Ziekenhuis Gent, C. Heymanslaan 10, 9000, Ghent, Belgium
| | - G Campanelli
- General and Day Surgery Unit, Center of Research and High Specialization for the Pathologies of Abdominal Wall and Surgical Treatment and Repair of Abdominal Hernia, Milano Hernia Center, Instituto Clinico Sant'Ambrogio, University of Insurbria, Milan, Italy
| | - D Cuccurullo
- Chief Week Surgery Departmental Unit, Department of General, Laparoscopic and Robotic Surgery, A.O. Dei Colli Monaldi Hospital Naples, Naples, Italy
| | - R Fortelny
- Department of General, Visceral and Oncological Surgery, Wilhelminenspital, 1160, Vienna, Austria
| | - H Friis-Andersen
- Surgical Department, Horsens Regional Hospital, Horsens, Denmark
| | - J F Gillion
- Unité de Chirurgie Viscérale, Hôpital Privé d'Antony, 1, Rue Velpeau, 92160, Antony, France
| | - J Gorjanc
- Department of Surgery, Krankenhaus der Barmherzigen Brüder, Spitalgasse 26, 9300, St. Veit an der Glan, Austria
| | - D Kopelman
- Department of Surgery Emek Medical Center, Afula and the Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - M Lopez-Cano
- Abdominal Wall Surgery Unit, Department of General Surgery, Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, Passeig Vall d'Hebron, 119-129, 08035, Barcelona, Spain
| | - S Morales-Conde
- Unit of Innovation in Minimally Invasive Surgery, University Hospital Virgen del Rocío, Av. Manuel Siurot, s/n, 41013, Seville, Spain
| | - J Österberg
- Department of Surgery, Mora Hospital, 79285, Mora, Sweden
| | - W Reinpold
- Wilhelmsburger Krankenhaus Gross-Sand, Gross-Sand 3, 21107, Hamburg, Germany
| | - R K J Simmermacher
- Department of Surgery, University Medical Center Utrecht, Heidelbergglaan 100, Utrecht, The Netherlands
| | - M Smietanski
- Department of General Surgery and Hernia Centre, Hospital in Puck, Medical University of Gdansk, Gdańsk, Poland
| | - D Weyhe
- School of Medicine and Health Sciences, University Hospital for Visceral Surgery, Pius-Hospital Oldenburg, Medical Campus University of Oldenburg, Georgstrasse 12, 26121, Oldenburg, Germany
| | - M P Simons
- Department of Surgery, OLVG Hospital, Oosterpark 9, 1091 AC, Amsterdam, The Netherlands
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Gorjanc J, Jakomin T, Hubad A, Golob K. How to teach and learn transabdominal preperitoneal effectively – Experience with introducing transabdominal preperitoneal repair in ten general hospitals in Slovenia (2013–2018). Int J Abdom Wall Hernia Surg 2019. [DOI: 10.4103/ijawhs.ijawhs_29_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Gorjanc J, Morrison SA, McDonnell AC, Mekjavic IB. Koroška 8000 Himalayan expedition: digit responses to cold stress following ascent to Broadpeak (Pakistan, 8051 m). Eur J Appl Physiol 2018; 118:1589-1597. [PMID: 29797057 DOI: 10.1007/s00421-018-3890-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 05/12/2018] [Indexed: 11/29/2022]
Abstract
PURPOSE Cold-induced vasodilatation (CIVD) is a peripheral blood flow response, observed in both the hands and feet. Exercise has been shown to enhance the response, specifically by increasing mean skin temperatures (Tsk), in part due to the increased number of CIVD waves. In contrast, hypobaric hypoxia has been suggested to impair digit skin temperature responses, particularly during subsequent hand rewarming following the cold stimulus. This study examined the combined effect of exercise and hypobaric hypoxia on the CIVD response. We compared the CIVD responses in the digits of both the hands and feet of a team of alpinists (N = 5) before and after a 35-day Himalayan expedition to Broadpeak, Pakistan (8051 m). METHODS Five elite alpinists participated in hand and foot cold water immersion tests 20 days before and immediately upon return from their expedition. RESULTS The alpinists summited successfully without supplemental oxygen. Post-expedition, all alpinists demonstrated higher minimum Tsk in their hands (pre: 9.9 ± 1.1, post: 10.1 ± 0.7 °C, p = 0.031). Four alpinists had either greater CIVD waves, and, consequently, higher mean Tsk in their hands, or higher recovery temperatures (pre: 26.0 ± 5.5 °C post: 31.0 ± 4.1 °C, p = 0.052), or faster rewarming rate (pre: 2.6 ± 0.5 °C min-1 post: 3.1 ± 0.4 °C min-1,p = 0.052). In the feet, the responses varied: 1/5 had higher wave amplitudes and 1/5 had higher passive recovery temperatures, whereas 3/5 had lower mean toe temperatures during cold exposure. CONCLUSIONS The results of the cold stress test suggest after a 35-day Himalayan expedition, alpinists experienced a slight cold adaptation of the hands, but not the feet.
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Affiliation(s)
- Jurij Gorjanc
- St. John of God Hospital, Spitalgasse 26, 9300, St. Veit/Glan, Austria.
| | - Shawnda A Morrison
- Faculty of Health Sciences, University of Primorska, Polje 42, 6310, Izola, Slovenia
| | - Adam C McDonnell
- Department of Automation, Biocybernetics and Robotics, Jožef Stefan Institute, Jamova 39, 1000, Ljubljana, Slovenia
| | - Igor B Mekjavic
- Department of Automation, Biocybernetics and Robotics, Jožef Stefan Institute, Jamova 39, 1000, Ljubljana, Slovenia.,Department of Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, BC, V5A 1S6, Canada
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Gorjanc J, Morrison SA, Blagus R, Mekjavic IB. Cold Susceptibility of Digit Stumps Resulting from Amputation After Freezing Cold Injury in Elite Alpinists. High Alt Med Biol 2018; 19:185-192. [PMID: 29608373 DOI: 10.1089/ham.2017.0134] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Gorjanc, Jurij, Shawnda A. Morrison, Rok Blagus, and Igor B. Mekjavic. Cold susceptibility of digit stumps resulting from amputation after freezing cold injury in elite alpinists. High Alt Med Biol. 19:185-192, 2018. AIM The aim of the study was to assess whether previous freezing cold injury in fingers and/or toes might predispose alpinists to greater risk of further freezing cold injury, primarily due to a greater vasoconstrictor response to cold, resulting in a lower perfusion, reflected in lower skin temperature. METHODS Ten elite alpinists (N = 10; 8 male and 2 female) with amputations after freezing cold injury participated in a cold-water (8°C) immersion stress test of the hands and feet. Digit skin temperatures of amputated digits, their noninjured counterparts, noninjured digits of the affected side and noninjured digits of the corresponding side were measured. The skin temperatures were compared during three consecutive phases of the cold stress test: prewarming, cold water immersion, and passive heating. RESULTS Amputated toes cooled much faster compared to their uninjured counterparts (n = 26, p < 0.001), and attained lower skin temperatures during the cold exposure test (n = 26, p < 0.001). Higher cooling rate was observed in all the toes on the injured limb compared with the toes on the uninjured limb (n = 40, p < 0.001). In contrast to the toes, the fingers on the injured limb after freezing cold injury were warmer during cooling phase compared to uninjured fingers (n = 15, p < 0.001). CONCLUSIONS The lower digit temperatures observed in affected toe stumps during the cold stress test compared to the nonamputated toes may indicate a heightened risk of future freezing cold injury with subsequent cold exposures, as a consequence of less perfusion, reflected in the lower skin temperature. This relationship was not confirmed in the fingers.
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Affiliation(s)
| | | | - Rok Blagus
- 3 Faculty of Medicine, Institute for Biostatistics and Medical Informatics, University of Ljubljana , Ljubljana, Slovenia
| | - Igor B Mekjavic
- 4 Department of Automation, Biocybernetics and Robotics, Jožef Stefan Institute , Ljubljana, Slovenia .,5 Department of Biomedical Physiology and Kinesiology, Simon Fraser University , Burnaby, British Columbia, Canada
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Gorjanc J, Morrison SA, McDonnell AC, Babič J, Mekjavic IB. Koroška 8000: digit responses to cold stress following himalayan expedition to broadpeak, Pakistan (8051 m). Extrem Physiol Med 2015. [PMCID: PMC4580821 DOI: 10.1186/2046-7648-4-s1-a43] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Morrison SA, Gorjanc J, Eiken O, Mekjavic IB. Finger and Toe Temperature Responses to Cold After Freezing Cold Injury in Elite Alpinists. Wilderness Environ Med 2015; 26:295-304. [PMID: 25754904 DOI: 10.1016/j.wem.2014.12.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Revised: 12/17/2014] [Accepted: 12/30/2014] [Indexed: 10/23/2022]
Abstract
OBJECTIVE To assess whether previous freezing cold injuries (FCI) would affect digit skin temperatures and rewarming rates during a follow-up cold stress test protocol. DESIGN Nonrandomized control trial. METHODS Twenty elite alpinists participated; alpinists with previous FCI requiring digit amputations (injured, INJ: n = 10 total, n = 8 male) were compared with ability-matched, uninjured alpinists (control, CON: n = 10, all male). Digit skin temperature was measured using infrared thermography as an index of peripheral digit perfusion after a cold stress test, which consisted of 30 minutes of immersion in 8°C water. RESULTS The INJ alpinists' injured toes were warmer (approximately 6%) than their uninjured toes immediately after cold immersion (95% CI, 0.01°C to 1.00°C; P = .05); there were no differences between the rates of rewarming of injured and uninjured toes (INJ, 0.5° ± 0.1°C/min; CON, 0.7° ± 0.3°C/min; P = .16). Although the INJ alpinists had colder injured fingers immediately after the 35°C warm bath compared with their own uninjured fingers (32.2° ± 2.0°C vs 34.5° ± 0.5°C; P = .02), there were no differences observed between the rates of rewarming of injured and uninjured fingers after cold exposure (INJ, 1.1° ± 0.2°C/min; CON, 1.3° ± 0.5°C/min; P = .22). CONCLUSIONS Even after FCI that requires digit amputation, there is no evidence of different tissue rates of rewarming between the injured and uninjured fingers or toes of elite alpinists.
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Affiliation(s)
- Shawnda A Morrison
- Environmental Physiology and Ergonomics Laboratory, Department of Automation, Biocybernetics and Robotics, Jožef Stefan Institute, Ljubljana, Slovenia (Drs Morrison and Mekjavic).
| | - Jurij Gorjanc
- Department of Surgery, Hospital of the Brothers of St. John of God, St.Veit/Glan, Austria (Dr Gorjanc)
| | - Ola Eiken
- Department of Environmental Physiology, School of Technology and Health, Royal Institute of Technology, Stockholm, Sweden (Dr Eiken)
| | - Igor B Mekjavic
- Environmental Physiology and Ergonomics Laboratory, Department of Automation, Biocybernetics and Robotics, Jožef Stefan Institute, Ljubljana, Slovenia (Drs Morrison and Mekjavic)
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Affiliation(s)
- Shawnda A Morrison
- 1 Environmental Physiology and Ergonomics Laboratory, Department of Automation, Biocybernetics, and Robotics, Jožef Stefan Institute , Ljubljana, Slovenia
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Petković L, Pristovnik F, Golob BV, Lužnik M, Gorjanc J, Kozar F. P760 Endometriosis mimicking incarcerated hernia during menstruation: A case report. Int J Gynaecol Obstet 2009. [DOI: 10.1016/s0020-7292(09)62251-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Gorjanc J, Kozelj V. P.013 Analysing tongue posture and radiographs in cleft patients. J Craniomaxillofac Surg 2008. [DOI: 10.1016/s1010-5182(08)71802-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Koželj V, Drevensek M, Gorjanc J. O.061 Growth of the facial skeleton in patients with UCLAP. J Craniomaxillofac Surg 2008. [DOI: 10.1016/s1010-5182(08)71185-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Gorjanc M, Kočar M, Gorjanc J, Oblak Ĉ. O.463 Placement of implants into extraction sockets – Retrospective survey on 62 placements. J Craniomaxillofac Surg 2006. [DOI: 10.1016/s1010-5182(06)60483-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Kacin A, Golja P, Eiken O, Tipton MJ, Gorjanc J, Mekjavic IB. Human temperature regulation during cycling with moderate leg ischaemia. Eur J Appl Physiol 2005; 95:213-20. [PMID: 16075299 DOI: 10.1007/s00421-005-1387-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/02/2005] [Indexed: 10/25/2022]
Abstract
The effect of graded ischaemia in the legs on the regulation of body temperature during steady-state exercise was investigated in seven healthy males. It was hypothesised that graded ischaemia in the working muscles increases heat storage within the muscles, which in turn potentiates sweat secretion during exercise. Blood perfusion in the working muscles was reduced by applying a supra-atmospheric pressure (+6.6 kPa) around the legs, which reduced maximal working capacity by 29%. Each subject conducted three separate test trials comprising 30 min of steady-state cycling in a supine position. Exercise with unrestricted blood flow (Control trial) was compared to ischaemic exercise conducted at an identical relative work rate (Relative trial), as well as at an identical absolute work rate (Absolute trial); the latter corresponding to a 20% increase in relative workload. The average (SD) increases in both the rectal and oesophageal temperatures during steady-state cycling was 0.3 (0.2) degrees C and did not significantly differ between the three trials. The increase in muscle temperature was similar in the Control (2.7 (0.3) degrees C) and Absolute (2.4 (0.7) degrees C) trials, but was substantially lower (P < 0.01) in the Relative trial (1.4 (0.8) degrees C). Ischaemia potentiated (P < 0.01) sweating on the forehead in the Absolute trial (24.2 (7.3) g m(-2) min(-1)) compared to the Control trial (13.4 (6.2) g m(-2) min(-1)), concomitant with an attenuated (P < 0.05) vasodilatation in the skin during exercise. It is concluded that graded ischaemia in working muscles potentiates the exercise sweating response and attenuates vasodilatation in the skin initiated by increased core temperature, effects which may be attributed to an augmented muscle metaboreflex.
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Affiliation(s)
- Alan Kacin
- Department of Automation, Biocybernetics and Robotics, Institute Jozef Stefan, Ljubljana, Slovenia.
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