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1.
BMC Med Res Methodol ; 22(1): 292, 2022 11 10.
Article in English | MEDLINE | ID: mdl-36357847

ABSTRACT

BACKGROUND: To report our recommended methodology for extracting and then confirming research uncertainties - areas where research has failed to answer a research question - derived from previously published literature during a broad scope Priority Setting Partnership (PSP) with the James Lind Alliance (JLA). METHODS: This process was completed in the UK as part of the PSP for "Common Conditions Affecting the Hand and Wrist", comprising of health professionals, patients and carers and reports the data (uncertainty) extraction phase of this. The PSP followed the robust methodology dictated by the JLA and sought to identify knowledge gaps, termed "uncertainties" by the JLA. Published Cochrane Systematic Reviews, Guidelines and Protocols, NICE (National Institute for Health and Care Excellence) Guidelines, and SIGN (Scottish Intercollegiate Guidelines Network) Guidelines were screened for documented "uncertainties". A robust method of screening, internally verifying and then checking uncertainties was adopted. This included independent screening and data extraction by multiple researchers and use of a PRISMA flowchart, alongside steering group consensus processes. Selection of research uncertainties was guided by the scope of the Common Conditions Affecting the Hand and Wrist PSP which focused on "common" hand conditions routinely treated by hand specialists, including hand surgeons and hand therapists limited to identifying questions concerning the results of intervention, and not the basic science or epidemiology behind disease. RESULTS: Of the 2358 records identified (after removal of duplicates) which entered the screening process, 186 records were presented to the PSP steering group for eligibility assessment; 79 were deemed within scope and included for the purpose of research uncertainty extraction (45 full Cochrane Reviews, 18 Cochrane Review protocols, 16 Guidelines). These yielded 89 research uncertainties, which were compared to the stakeholder survey, and added to the longlist where necessary; before derived uncertainties were checked against non-Cochrane published systematic reviews. CONCLUSIONS: In carrying out this work, beyond reporting on output of the Common Conditions Affecting the Hand and Wrist PSP, we detail the methodology and processes we hope can inform and facilitate the work of future PSPs and other evidence reviews, especially those with a broader scope beyond a single disease or condition.


Subject(s)
Biomedical Research , Health Priorities , Humans , Research Personnel , Surveys and Questionnaires , Uncertainty , Wrist
2.
Surg Open Sci ; 10: 168-173, 2022 Oct.
Article in English | MEDLINE | ID: mdl-36211629

ABSTRACT

Background: The COVID-19 pandemic has caused unprecedented health care challenges mandating surgical service reconfiguration. Within our hospital, emergency and elective streams were separated and self-contained Protected Elective Surgical Units were developed to mitigate against infection-related morbidity. Aims of this study were to determine the risk of COVID-19 transmission and mortality and whether the development of Protected Elective Surgical Units can result in significant reduction in risk. Methods: A retrospective observational study of consecutive patients from 18 specialties undergoing elective or emergency surgery under general, spinal, or epidural anaesthetic over a 12-month study period was undertaken. Primary outcome measures were 30-day postoperative COVID-19 transmission rate and mortality. Secondary adjusted analyses were performed to ascertain hospital and Protected Elective Surgical Unit transmission rates. Results: Between 15 March 2020 and 14 March 2021, 9,925 patients underwent surgery: 6,464 (65.1%) elective, 5,116 (51.5%) female, and median age 57 (39-70). A total of 69.5% of all procedures were performed in Protected Elective Surgical Units. Overall, 30-day postoperative COVID-19 transmission was 2.8% (3.4% emergency vs 1.2% elective P < .001). Protected Elective Surgical Unit postoperative transmission was significantly lower than non-Protected Elective Surgical Unit (0.42% vs 3.2% P < .001), with an adjusted likely in-hospital Protected Elective Surgical Unit transmission of 0.04%. The 30-day all-cause mortality was 1.7% and was 14.6% in COVID-19-positive patients. COVID-19 infection, age > 70, male sex, American Society of Anesthesiologists grade > 2, and emergency surgery were all independently associated with mortality. Conclusion: This study has demonstrated that Protected Elective Surgical Units can facilitate high-volume elective surgical services throughout peaks of the COVID-19 pandemic while minimising viral transmission and mortality. However, mortality risk associated with perioperative COVID-19 infection remains high.

4.
Ann R Coll Surg Engl ; 103(5): 332-336, 2021 May.
Article in English | MEDLINE | ID: mdl-33682444

ABSTRACT

INTRODUCTION: COVID-19 has necessitated significant changes to healthcare delivery but little is known regarding patient opinions of risks compared with benefits. This study investigates patient perceptions concerning attendance for planned orthopaedic surgery during the COVID-19 pandemic. MATERIALS AND METHODS: A total of 250 adult patients from the elective orthopaedic waiting list at Cardiff and Vale University Health Board were telephoned during lockdown. They were risk stratified for COVID-19 based on British Orthopaedic Association guidance and a discussion was held to determine patient willingness to proceed with surgery. The primary outcome measure was patients' willingness to proceed. RESULTS: Of the total number telephoned, 196 patients were included in the study, with a mean age of 57.4 years; 129 patients were willing to attend for surgery, leaving over one-third wishing to cancel or defer. The most frequent reason given for not wishing to attend was fear of contracting COVID-19. There was a statistically significant difference in the willingness to proceed observed with increasing clinical risk (χ2(3) = 50.073, p = .000) with almost double the expected count of unwilling to proceed in the high and very high risk groups, equalled by half the expected count in the low risk group. DISCUSSION: This study illustrates the variable and personal decisions that patients are making about orthopaedic care because of COVID-19. It highlights the need for change to departmental processes regarding recommencement of planned surgical lists. It also reconfirms the importance of regular communication and shared decision making between a well-informed patient and a holistic orthopaedic team.


Subject(s)
Attitude to Health , COVID-19 , Elective Surgical Procedures , Orthopedic Procedures , Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Risk Assessment , SARS-CoV-2 , Surveys and Questionnaires , United Kingdom , Waiting Lists , Young Adult
6.
Injury ; 50(2): 521-533, 2019 Feb.
Article in English | MEDLINE | ID: mdl-30482409

ABSTRACT

AIM: The aim of this study was to determine how outcome is measured following adult tibial fracture in the modern era of functional outcome measurement and patient reported outcomes. METHODS: A systematic review of publications since 2009 was performed, looking specifically at acute, adult tibial shaft fractures. Ovid Medline, Embase, PubMed and PsycINFO databases were searched for relevant titles which were then screened by two authors with adjudication where necessary by a third. Relevant articles were reviewed in full and data was extracted concerning the study participants, study design and any measures that were used to quantify the results following fracture. The results were collated and patient reported outcome measures were assessed using the COnsensus-based Standards for the selection of health Measurement INstruments (COSMIN) standards. RESULTS: A total of 943 titles and articles were reviewed, with 117 included for full analysis. A wide range of clinical and radiological "outcomes" were described, along with named clinician- and patient-reported outcome measures. There was considerable heterogeneity and lack of detail in the description of the simplest outcomes, such as union, infection or reoperation. Reported clinician and patient reported outcome measures are variably used. None of the identified patient reported outcome measures have been validated for use following tibial fracture. CONCLUSION: We recommend definition of a core outcome set for use following tibial fracture. This will standardise outcome reporting following these injuries. Furthermore, there is need for a validated patient reported outcome measure to better assess patient important outcomes in this patient group.


Subject(s)
Fracture Fixation, Intramedullary/methods , Fracture Healing/physiology , Tibial Fractures/surgery , Humans , Outcome Assessment, Health Care , Patient Reported Outcome Measures , Tibial Fractures/physiopathology , Treatment Outcome
8.
Ann R Coll Surg Engl ; 98(6): 371-5, 2016 Jul.
Article in English | MEDLINE | ID: mdl-27055405

ABSTRACT

Introduction Acute gastrointestinal stress ulceration is a common and serious complication of trauma. Prophylactic proton pump inhibitors (PPIs) or histamine receptor antagonists have been used in poly-trauma, burns and head and spinal injuries, as well as on intensive care units, for the prevention of acute gastric stress ulcers. Methods We prospectively studied the use of prophylactic PPIs in with femoral neck fracture patients, gathering data on all acute gastric ulcer complications, including coffee-ground vomiting, malena and haematemesis. We then implemented a treatment protocol in which all patients were given prophylactic PPIs, again prospectively collecting all data. Results Five hundred and fifteen patients were included. Prior to prophylactic PPI, 15% of patients developed gastric stress ulcer complications, with 3% requiring acute intervention with oesophagogastroduodenoscopy (OGD), 5% requiring transfusions and 4% experiencing surgical delays. All patients had delayed discharges. Following PPI implementation, no patients developed gastric stress ulcer complications. Conclusions Femoral neck fracture patients create a substantial workload for orthopaedic units. The increasingly elderly population often have comorbidities, and concomitantly use medications with gastrointestinal side effects. This, combined with the stress of a fracture and preoperative starvation periods increases the risk of gastric ulcers. Here, the use of prophylactic PPIs statistically reduced the incidence of gastric stress ulcers in patients with femoral neck fractures, resulting in fewer surgical delays, reduced length of hospital stay and reduced stress ulcer-related mortality.


Subject(s)
Femoral Neck Fractures/complications , Proton Pump Inhibitors/therapeutic use , Stomach Ulcer/prevention & control , Stress, Physiological , Stress, Psychological/complications , Aged , Aged, 80 and over , Blood Transfusion/statistics & numerical data , Case-Control Studies , Clinical Audit , Endoscopy, Digestive System/statistics & numerical data , Female , Femoral Neck Fractures/surgery , Humans , Length of Stay/statistics & numerical data , Male , Middle Aged , Preoperative Care , Prospective Studies , Starvation , Stomach Ulcer/etiology , United Kingdom
9.
Ann R Coll Surg Engl ; 97(6): 469-75, 2015 Sep.
Article in English | MEDLINE | ID: mdl-26274742

ABSTRACT

INTRODUCTION: The standards for the management of open fractures of the lower limb published by the British Association of Plastic, Reconstructive and Aesthetic surgeons (BAPRAS) and British Orthopaedic Association (BOA) were introduced to improve the treatment received by patients after open injury to the lower limb. These Standards were released after BAPRAS/BOA published Guidelines for the management of open tibial fractures. METHODS: We wished to determine the impact of these Standards upon the surgical management of open tibial fractures by comparing patients admitted to an orthoplastic centre in the 45 months concluding December 2009 (the Guidelines era) with those admitted during 2011 (the Standards era). Surgical procedures required during the first 30 days and 12 months after injury were determined. Cases were divided into 'directly admitted patients' (DAP) and 'transferred patients' (TP). Standards-era patients were divided further into those who had surgery exclusively at the orthoplastic centre (orthoplastic patients (OPP)) and those transferred after surgery (TASP). RESULTS: The number of TP trebled in frequency in the Standards era, 25% of whom were transferred before surgery. Significantly fewer surgical procedures were required for DAP and OPP groups compared with TP (and TASP) groups in both eras (Mann-Whitney U-test, p=0.05). DAP and OPP groups during the Standards era underwent the fewest procedures, with the vast majority of cases treated with two or fewer procedures in the first 12 months (88% and 80%, respectively, compared with 61% in the Guidelines era). In the Guidelines era, 44% of TP cases and in the Standards era 39% of TP and 29% of TASP groups underwent two or fewer procedures. Approximately two-thirds of open tibial fractures managed in our orthoplastic centre were patients transferred after surgery. The greatest impact of the Standards was evident for those who underwent surgery exclusively in the orthoplastic centre, reflecting a more deliberate combined strategy. CONCLUSION: These findings vindicate the Standards as well as mandating reorganisation and resourcing of orthoplastic services to ensure immediate transfer and early combined surgery. By increasing the capacity to deal with time-dependent initial surgery, the surgical burden that the patient must endure, and which the service must provide, are reduced.


Subject(s)
Fractures, Open/surgery , Practice Guidelines as Topic , Standard of Care , Tibial Fractures/surgery , Traumatology/standards , Fracture Fixation, Internal/methods , Fracture Fixation, Internal/standards , Humans , Injury Severity Score , Medical Audit , Patient Transfer , Plastic Surgery Procedures/standards , Soft Tissue Injuries/surgery , Time Factors , Wales
10.
J Hand Surg Eur Vol ; 40(8): 819-24, 2015 Oct.
Article in English | MEDLINE | ID: mdl-25770897

ABSTRACT

We present a prospective study outlining the management of clenched fist 'fight bite' injuries. Over a 4-year period all patients with such injuries had surgical exploration with further débridements as necessary. For metacarpophalangeal joint injuries, a midline tendon-splitting approach was used. For proximal interphalangeal joint injuries, an approach was made between the lateral band and central slip of the extensor mechanism. A total of 147 patients with 159 joint injuries were treated, with 130 metacarpophalangeal joint and 29 proximal interphalangeal joint injuries. The joint was penetrated in 96% of joints overall. The number of débridements ranged from two to eight. Twenty patients defaulted within 1 week of surgery and were not included in the analysis of the results. All patients with metacarpophalangeal joint injury had satisfactory or good outcomes. A total of 42% of patients with proximal interphalangeal joint injuries had poor results, four requiring amputation and one a fusion. The tendon-splitting approach to the metacarpophalangeal joint allows excellent access and avoids damage to the sagittal bands and consequent instability of the extensor mechanism.


Subject(s)
Bites and Stings/surgery , Boxing/injuries , Hand Injuries/surgery , Hand Joints/injuries , Adolescent , Adult , Bites and Stings/etiology , Bites and Stings/pathology , Debridement , Female , Hand Injuries/etiology , Hand Injuries/pathology , Humans , Male , Middle Aged , Prospective Studies , Range of Motion, Articular , Recovery of Function , Treatment Outcome , Young Adult
11.
J Hand Surg Eur Vol ; 39(5): 472-6, 2014 Jun.
Article in English | MEDLINE | ID: mdl-24027133

ABSTRACT

Named cords were excised sequentially at fasciectomy for Dupuytren's disease and the resultant correction in the joint angle was measured intra-operatively in 99 fingers. Eighty-two metacarpophalangeal and 59 proximal interphalangeal joints were affected. At the metacarpophalangeal joint, excision of the central cord resulted in 82% correction in 69 joints, and spiral/lateral cord excision resulted in an additional 12% correction in 10 joints. At the proximal interphalangeal joint, excision of the central cord resulted in 44% correction in 36 joints, spiral/lateral cord excision resulted in an additional 19% correction in 16 joints, and retrovascular cord excision resulted in a further 23% correction in 27 joints. Subsequent division of the accessory collateral ligament resulted in a further 14% correction in 14 joints. Larger pre-operative angles of the proximal interphalangeal joint were associated with a retrovascular cord, and larger combined angles were associated with an increasing number of pathological structures involved. The data explain the complexity of surgery at the proximal interphalangeal joint, where four structures are implicated in causing flexion deformity.


Subject(s)
Dupuytren Contracture/surgery , Fasciotomy , Finger Joint/surgery , Hand/surgery , Orthopedic Procedures/methods , Dissection , Humans
13.
J Surg Case Rep ; 2013(12)2013 Dec 04.
Article in English | MEDLINE | ID: mdl-24968429

ABSTRACT

The Foley catheter is described in the emergency treatment of penetrating cardiac injuries, and its intra-operative use to control bleeding while definitive measures for intravascular embolization are being made. We present the first reported case of the use of a urinary catheter to control haemorrhage in an extremity stab injury to obtain haemodynamic stability while awaiting definitive surgical treatment. This quick, easy and useful technique can be used for junctional vascular injuries and wounds with a narrow neck, and can be easily removed once in the operating theatre. This life-saving, simple and cost-effective technique 'internalises' the externally applied pressure to control massive haemorrhage while awaiting definitive operative intervention. The catheter can be sutured in place if the patient is to be transferred to another department or hospital.

14.
Injury ; 43(7): 1071-8, 2012 Jul.
Article in English | MEDLINE | ID: mdl-22356720

ABSTRACT

AIM: The aim of this study was to describe how patients perceive their recovery following open tibial fractures using a qualitative approach. PATIENTS AND METHODS: Following the appropriate ethical approval, adult patients with a diagnosis of open tibial fracture were recruited after completion of their surgical treatment and discharge from Morriston Hospital, a centre with orthoplastic surgical care. A purposive sampling method was employed to ensure that a range of injuries as well as clinical outcomes were included. All patients took part in an in-depth semi-structured interview, exploring aspects of their injury, treatment, rehabilitation and psychosocial and financial situations. Interviews were completed with two interviewers present and were recorded for verbatim transcription. Interview transcripts were analysed to identify items important to patients during their recovery. RESULTS: Nine patients with a mean injury to interview interval of 2.3 years were interviewed. A total of 538 items were identified and subsequently mapped onto 18 categories: pain; mobility; flexibility; temperature (effects on symptoms); fear; appearance; sleep; diet/weight; employment; social; finance; impact on others; self-care; recovery (patient perceptions of recovery); frustration; goal setting (by patients and health-care providers); and adaptation (both physical and mental). CONCLUSION: There is a wide range of factors that our cohort found important during their recovery from open tibial fracture. Despite being considered as 'healed' by the medical staff, patients did not report a corresponding full recovery and return to pre-injury normality. The categories identified will enable the development of a patient-reported recovery scale to be used in lower-limb trauma.


Subject(s)
Fracture Healing , Fractures, Open/rehabilitation , Pain Measurement , Patient Satisfaction/statistics & numerical data , Tibial Fractures/rehabilitation , Activities of Daily Living , Adult , Employment/statistics & numerical data , Female , Fractures, Open/psychology , Fractures, Open/surgery , Humans , Male , Middle Aged , Perception , Quality of Life , Surveys and Questionnaires , Tibial Fractures/psychology , Tibial Fractures/surgery , Time Factors , Trauma Severity Indices , Treatment Outcome
15.
J Bone Joint Surg Br ; 91(7): 903-6, 2009 Jul.
Article in English | MEDLINE | ID: mdl-19567854

ABSTRACT

We aimed to determine the reliability, accuracy and the clinical role of digital templating in the pre-operative work-up for total knee replacement. Initially a sample of ten pre-operative digital radiographs were templated by four independent observers to determine the inter- and intra-observer reliability of the process. Digital templating was then performed on the radiographs of 40 consecutive patients undergoing total knee replacement by a consultant surgeon not involved with the operation, who was blinded to the size of the implant inserted. The Press Fit Condylar Sigma Knee system was used in all the patients. The size of the implant as judged by templating was then compared to that of the size used. Good inter- and intra-observer agreement was demonstrated for both femoral and tibial templating. However, the correct size of the implant was predicted in only 48% of the femoral and 55% of the tibial components. Albeit reproducible, digital templating does not currently predict the correct size of component often enough to be of clinical benefit.


Subject(s)
Arthroplasty, Replacement, Knee , Knee Joint/diagnostic imaging , Prosthesis Fitting/methods , Arthroplasty, Replacement, Knee/methods , Female , Humans , In Vitro Techniques , Knee Prosthesis , Male , Observer Variation , Preoperative Care/methods , Radiographic Image Interpretation, Computer-Assisted/methods , Reproducibility of Results
16.
Burns ; 35(6): 882-7, 2009 Sep.
Article in English | MEDLINE | ID: mdl-19477598

ABSTRACT

This study investigated the association of inhalation injury (IHI) with smoking, alcohol and drug abuse in patients admitted to the Welsh Centre for Burns between 1995 and 2006. Common characteristics of these individuals were identified and contrasted with inhalation injury not associated with these social factors. Two hundred and fourteen patients were identified with inhalation injury. Ninety-two of these were associated with smoking, alcohol abuse and/or drug abuse. The proportion of IHI cases associated with smoking remained stable but IHI associated with alcohol and drug abuse increased dramatically over the course of the study and if current trends continue will increase further in future years. This study also showed that IHI associated with smoking alcohol and drug abuse were found to be largely caused by housefires and deliberate self-harm, and occurred between 22:00 and 05:59 h. These results were in sharp contrast with IHI not associated with these factors.


Subject(s)
Smoke Inhalation Injury/etiology , Smoking/adverse effects , Substance-Related Disorders/complications , Adolescent , Adult , Age Distribution , Aged , Alcoholism/complications , Alcoholism/epidemiology , Child , Female , Fires/statistics & numerical data , Humans , Male , Middle Aged , Prospective Studies , Self-Injurious Behavior/complications , Self-Injurious Behavior/epidemiology , Smoke Inhalation Injury/epidemiology , Smoking/epidemiology , Substance-Related Disorders/epidemiology , Wales/epidemiology , Young Adult
17.
J Plast Reconstr Aesthet Surg ; 62(8): e270-3, 2009 Aug.
Article in English | MEDLINE | ID: mdl-18313375

ABSTRACT

Sting-ray injuries have recently had high profile media coverage following a rare fatality. However, minor injuries to the hands and feet are common. We present a case of a sting-ray injury to the hand. This was washed out under local anaesthetic at the local emergency department and was a delayed presentation to a specialist hand surgeon, 1 month post injury with severe pain. Ultrasound scan showed synovitis of the palm, confirmed at synovectomy the following day, along with frankly necrotic lumbrical muscles. Histology showed extensive low grade chronic inflammation. At 1 month follow up the patient was pain free and making good progress with a full and functional range of movement. We review the available literature and discuss the circumstances and pathophysiology of the sting-ray sting, the most appropriate first aid management, need for prompt surgical exploration and wound debridement and the possible complications. We would also like to suggest an algorithm for the management of sting-ray injuries to the hand.


Subject(s)
Bites and Stings/surgery , Hand Injuries/surgery , Pain/surgery , Skates, Fish , Synovitis/surgery , Algorithms , Animals , Bites and Stings/pathology , Hand Injuries/pathology , Humans , Male , Middle Aged , Pain/etiology , Plastic Surgery Procedures , Synovitis/etiology , Synovitis/pathology
18.
Lasers Surg Med ; 39(8): 667-73, 2007 Sep.
Article in English | MEDLINE | ID: mdl-17886280

ABSTRACT

The BioWeld tube, an albumin-based exovascular stent, has been used for microsurgical anastomoses and compared to conventional sutures. The study presented investigated the potential of the BioWeld tube for vascular anastomosis in larger vessels. Laser-assisted BioWeld anastomoses were compared to conventional-sutured anatomoses of the carotid artery of Merino-x ewes. The BioWeld procedure resulted in 100% survival and 100% patency at 1 and 6 week post-operative periods, with no noticeable foreign body response. Sutured animals showed 100% survival and patency. The ischemic time for BioWeld anastomosis averaged 15 minutes compared with 10 minutes for sutures. This study indicates that the BioWeld tube is an easy to use anastomotic technique with equivalent success rates and comparable anastomotic times.


Subject(s)
Carotid Arteries/surgery , Laser Therapy , Stents , Anastomosis, Surgical , Animals , Sheep , Suture Techniques
19.
Emerg Med J ; 23(10): e57, 2006 Oct.
Article in English | MEDLINE | ID: mdl-16988295

ABSTRACT

A 26-year-old man presented to the emergency department after a spontaneous 30 min bleed from his scrotal skin. He showed no other symptoms and denied any past medical history. He was exclusively sexually active, systemically well and haemodynamically stable. There were numerous (>50) 1-2 mm dark red, erythematous papules over the scrotum, sparing the shaft of penis, inner thigh and abdomen. A small area of blood marked the bleeding spot as a single papule. A diagnosis of angiokeratoma of the scrotum (Fordyce) was made and potential precipitants such as intra-abdominal masses, urinary tract tumours, varicoceles, hernias and angiokeratoma corporis diffusum (Fabry syndrome) were excluded. He was discharged with dermatology follow-up with a view to local laser treatment. The important differential diagnoses are angiokeratoma corporis diffusum and malignant melanoma (nodular type). In females, Fordyce angiokeratoma are distributed on labia majora.


Subject(s)
Angiokeratoma/diagnosis , Hemorrhage/etiology , Scrotum , Skin Neoplasms/diagnosis , Adult , Angiokeratoma/complications , Humans , Male , Skin Neoplasms/complications
20.
Plast Reconstr Surg ; 104(6): 1726-31, 1999 Nov.
Article in English | MEDLINE | ID: mdl-10541175

ABSTRACT

A new sutureless technique to successfully anastomose the abdominal aorta of rats (1.3 mm in diameter) by using a fully biodegradable, laser-activated protein solder is presented. A total of 90 rats were divided into two groups randomly. In group one, the anastomoses were performed by using conventional microsuturing technique, whereas in group two, the anastomoses were performed by using a new laser welding technique. In addition, each of the two groups were divided into five subgroups and evaluated at different follow-up periods (10 minutes, 1 hour, 1 day, 1 week, and 6 weeks). At these intervals, the anastomoses were evaluated for patency and tensile strength. Three anastomoses in each subgroup were processed for light and electron microscopy. All anastomoses were found to be patent. The mean clamp time of the anastomoses performed with conventional suturing was 20.6 minutes compared with 7.2 minutes for the laser-activated welded anastomoses (p < 0.001). The strain measurements showed a stronger mechanical bond of the sutured anastomoses in the initial phase. However, at 6 weeks the tensile strength of the laser-welded anastomoses was higher compared with the conventional suture technique. Histologic evaluations revealed a near complete resorption of the solder after 6 weeks. The junction site of the vessel ends cannot be determined on the luminal side of the artery. In conclusion, a resorbable protein used as a solder, activated by a diode laser, can provide a reliable, safe, and rapid arterial anastomosis, which could be performed by any microsurgeon faster than conventional suturing after a short learning curve.


Subject(s)
Anastomosis, Surgical/instrumentation , Arteries/surgery , Lasers , Microsurgery/instrumentation , Serum Albumin, Bovine , Suture Techniques/instrumentation , Tissue Adhesives , Welding/instrumentation , Animals , Aorta, Abdominal/pathology , Aorta, Abdominal/surgery , Arteries/pathology , Biodegradation, Environmental , Male , Microscopy, Electron , Microscopy, Electron, Scanning , Rats , Rats, Wistar , Wound Healing/physiology
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