Feline distichiasis treated with cryoepilation: A retrospective study of 15 cats (27 eyes).

OBJECTIVE: To describe the clinical features of cats diagnosed with distichiasis and report on the outcomes following cryoepilation. ANIMALS STUDIED: Fifteen cats (27 eyes). PROCEDURES: Medical records of domestic cats with distichiasis that underwent a double freeze-thaw cycle with a -80°C cryoprobe applied to the palpebral conjunctiva, with hair then epilated were retrospectively studied. The patient signalment, distichiae locations, concurrent ocular diseases, recurrences, complications, and outcomes were recorded. RESULTS: The mean (std dev) age at the time of diagnosis and treatment was 2.2 years (2.8 years). All (15/15) cats were of the domestic shorthair (DSH) breed. Concurrent ocular findings at the initial examination were observed in 17/27 (63%) eyes, with upper lateral eyelid hypoplasia the most prevalent, present in 9/27 (33.3%) eyes. Recurrence of distichiae occurred in 8/27 (29.6%) eyes. The clinical presentation in the instances of recurrence was judged as asymptomatic and not of a clinical concern in 3/27 (11.1%) eyes, with a second procedure deemed necessary to alleviate symptoms in 5/27 (18.5%) eyes. All eyes treated with a second procedure had no recurrence of distichiae or symptoms. Complications following cryoepilation occurred in 4/27 (14.8%) eyes, with two cats developing bilateral entropion post-procedure. CONCLUSIONS: Treatment of distichiasis in cats utilizing cryoepilation was effective at alleviating symptoms, though some cats needed a second procedure. The development of post-procedural entropion was seen occasionally.

Ophthalmic findings associated with Australian tick paralysis (holocyclotoxicity) in hospitalized domestic dogs and cats.

OBJECTIVE: To describe ophthalmic findings in hospitalized canine and feline patients with tick paralysis (TP) and investigate possible predisposing factors. ANIMALS STUDIED: Forty-seven dogs and 28 cats hospitalized with TP assessed with an ophthalmic examination performed by an ABVO resident. METHODS: Dogs and cats were hospitalized with TP from October 2021 to January 2022 and had an ophthalmic examination performed by an ABVO resident. Patient signalment data, information regarding tick number and location, hospitalization duration, medications used, and patient paralysis grades were recorded. Statistical analysis was performed to correlate findings. RESULTS: Corneal ulcers developed in up to 34.8% of dogs and up to 42.9% of cats hospitalized with TP. An absent palpebral reflex ipsilaterally increased the odds of a concurrent corneal ulcer being present by 14.7× in dogs and 20.1× in cats (p < .0001). Palpebral reflexes were absent in 38.3% of dogs and 35.7% of cats hospitalized with TP and were correlated with more severe gait paralysis (p = .01) and respiratory paralysis (p = .005) in dogs, and respiratory paralysis in cats (p = .041). STT-1 findings <10 mm/min were present in 27.7% of dogs and 57.1% of cats examined and were associated with increasing gait paralysis (p = .017) and respiratory paralysis (p = .007) in dogs, and increasing gait paralysis in cats (p = .017). CONCLUSIONS: Simple corneal ulcers, loss of a complete palpebral reflex, and reduced STT-1 scores frequently occurred in dogs and cats hospitalized for TP. The frequency of these findings increased as the degree of patient paralysis increased.

Second primary malignancies in multiple myeloma: an overview and IMWG consensus.

Background: Therapeutic advancements following the introduction of autologous stem cell transplantation and 'novel' agents have significantly improved clinical outcomes for patients with multiple myeloma (MM). Increased life expectancy, however, has led to renewed concerns about the long-term risk of second primary malignancies (SPMs). This review outlines the most up-to-date knowledge of possible host-, disease-, and treatment-related risk factors for the development of SPMs in patients with MM, and provides practical recommendations to assist physicians. Design: A Panel of International Myeloma Working Group members reviewed the most relevant data published in the literature as full papers, or presented at meetings of the American Society of Clinical Oncology, American Society of Hematology, European Hematology Association, or International Myeloma Workshops, up to June 2016. Here, we present the recommendations of the Panel, based on this literature review. Results: Overall, the risk of SPMs in MM is low, multifactorial, and partially related to the length of patients' survival and MM intrinsic susceptibility. Studies suggest a significantly increased incidence of SPMs when lenalidomide is administered either following, or concurrently with, oral melphalan. Increased SPM incidence has also been reported with lenalidomide maintenance following high-dose melphalan, albeit to a lesser degree. In both cases, the risk of death from MM was significantly higher than the risk of death from SPMs, with lenalidomide possibly providing a survival benefit. No increase in SPM incidence was reported with lenalidomide plus dexamethasone (without melphalan), or with bortezomib plus oral melphalan, dexamethasone, or thalidomide. Conclusion: In general, the risk of SPMs should not alter the current therapeutic decision-making process in MM. However, regimens such as lenalidomide plus dexamethasone should be preferred to prolonged exposure to lenalidomide plus oral melphalan. SPM risk should be carefully discussed with the patient in the context of benefits and risks of different treatment options.

Anatomical integration and rich-club connectivity in euthymic bipolar disorder.

BACKGROUND: Although repeatedly associated with white matter microstructural alterations, bipolar disorder (BD) has been relatively unexplored using complex network analysis. This method combines structural and diffusion magnetic resonance imaging (MRI) to model the brain as a network and evaluate its topological properties. A group of highly interconnected high-density structures, termed the 'rich-club', represents an important network for integration of brain functioning. This study aimed to assess structural and rich-club connectivity properties in BD through graph theory analyses. METHOD: We obtained structural and diffusion MRI scans from 42 euthymic patients with BD type I and 43 age- and gender-matched healthy volunteers. Weighted fractional anisotropy connections mapped between cortical and subcortical structures defined the neuroanatomical networks. Next, we examined between-group differences in features of graph properties and sub-networks. RESULTS: Patients exhibited significantly reduced clustering coefficient and global efficiency, compared with controls globally and regionally in frontal and occipital regions. Additionally, patients displayed weaker sub-network connectivity in distributed regions. Rich-club analysis revealed subtly reduced density in patients, which did not withstand multiple comparison correction. However, hub identification in most participants indicated differentially affected rich-club membership in the BD group, with two hubs absent when compared with controls, namely the superior frontal gyrus and thalamus. CONCLUSIONS: This graph theory analysis presents a thorough investigation of topological features of connectivity in euthymic BD. Abnormalities of global and local measures and network components provide further neuroanatomically specific evidence for distributed dysconnectivity as a trait feature of BD.

Development, validation and use of custom software for the analysis of pain trajectories.

In chronic musculoskeletal conditions, the prognosis tends to be more informative than the diagnosis for the future course of the disease. Many studies have identified clusters of patients who seemingly share similar pain trajectories. In a dataset of low back pain (LBP) patients, pain trajectories have been identified, and distinct trajectory types have been defined, making it possible to create pattern recognition software that can classify patients into respective pain trajectories reflecting their condition. It has been suggested that the classification of pain trajectories may create clinically meaningful subgroups of patients in an otherwise heterogeneous population of patients with LBP. A software tool was created that combined the ability to recognise the pain trajectory of patients with a system that could create subgroups of patients based on their characteristics. This tool is primarily meant for researchers to analyse trends in large heterogeneous datasets without large losses of data. Prospective analysis of pain trajectories is not directly helpful for clinicians. However, the tool might aid in the identification of patient characteristics which have predictive capabilities of the most likely trajectory a patient might experience in the future. This will help clinicians to tailor their advice and treatment for a specific patient.

Retrospective assessment of ophthalmic disease development in domestic dogs and cats when hospitalised with tick paralysis caused by Ixodes holocyclus.

OBJECTIVE: To investigate the incidence and predisposing factors leading to the development of corneal ulcers and the loss of a palpebral reflex in hospitalised canine and feline patients with tick paralysis (TP). ANIMALS STUDIED: A total of 102 dogs and 100 cats retrospectively were assessed from previously hospitalised patients. METHODS: A retrospective cohort study was performed on 102 different canine and 100 different feline patients who were hospitalised for TP from October 2020-January 2022. Patient data were collected, and logistic regression was conducted to determine factors affecting the palpebral reflex and the development of corneal ulcers. RESULTS: Corneal ulcers occurred in 23/102 (22.5%) dogs during hospitalisation and were strongly associated with an incomplete palpebral reflex ipsilaterally during hospitalisation (P < 0.001), hospitalisation ≥3 days (P = 0.004), mechanical ventilation ≥3 days (P = 0.015) or a tick location cranial to C1 (P = 0.003). An incomplete palpebral reflex during hospitalisation was observed in 29/102 (28.4%) dogs and was significantly associated with decreasing patient weight (P = 0.018), increasing days hospitalised (P = 0.001), having a tick found cranial to C1 (P = 0.004), highest recorded GP grade (P = 0.01), highest recorded RP grade (P = 0.005), use of amoxycillin-clavulanic acid during hospitalisation (P = 0.002) and use of piperacillin/tazobactam during hospitalisation (P = 0.003). There was a significant association between the loss of a complete palpebral reflex and mortality during hospitalisation in dogs (OR = 4.5, P = 0.029). Corneal ulcers occurred in 10/100 (10.0%) cats during hospitalisation, and was significantly more likely to occur to an eye if an incomplete palpebral reflex was observed ipsilaterally during hospitalisation (OR = 20.1, P < 0.0001) and with increasing patient age (P = 0.019). The absence of a complete palpebral reflex during hospitalisation was observed in 18/10 (18.0%) cats and was significantly associated with increasing days hospitalised (P = 0.034). There was no significant association between the loss of a complete palpebral reflex and mortality during hospitalisation in cats. CONCLUSIONS: The frequency of corneal ulcers and loss of palpebral reflexes were significant in dogs and cats hospitalised by TP, with many factors contributing to the risk of these developing.

Tranexamic acid without prophylactic factor replacement for prevention of bleeding in hereditary bleeding disorder patients undergoing endoscopy: a pilot study.

The risk of bleeding in patients with hereditary bleeding disorders (HBD) undergoing gastro-intestinal (GI) endoscopic procedures is unknown but guidelines generally recommend correction of factor deficiency. Investigate the safety of oral tranexamic acid (TA) without prophylactic factor replacement to prevent bleeding complications in patients with HBD undergoing elective GI endoscopic procedures. A prospective single-arm pilot study testing the feasibility of using TA, without prophylactic factor replacement or desmopressin preprocedure, for prevention of bleeding complications following elective standard risk (<1% risk of bleeding) endoscopic procedures in patients with HBD. Baseline factor levels, haemoglobin and iron studies (IS) were measured preprocedure. Primary outcome of bleeding (NCI CTCAE v3.0 Bleeding Scale) was undertaken by patient review and repeat Hb, IS on day 21. Twenty-eight patients underwent 32 GI endoscopic procedures from September 2010 until June 2012. The median age was 53 years (range 24-75 years) and disease types included mild haemophilia A/B (n = 12), severe haemophilia A/B (n = 9), von Willebrand disease (n = 5), FXI deficiency (n = 1) and FVII deficiency (n = 1). Procedures performed included 11 gastroscopies, 12 colonoscopies, 8 gastroscopies and colonoscopies and 1 flexible sigmoidoscopy. Fourteen standard risk procedures and two high risk procedures were performed. Two patients experienced Grade 1 bleeding and one patient experienced Grade 2 bleeding. This study suggests that TA without prophylactic factor replacement may be a safe approach for mild and moderate HBD patients undergoing standard risk endoscopic procedures, particularly where no biopsy is performed. These findings should be confirmed in a larger study.

Prevalence of transfusion-acquired hepatitis C in an Australian bleeding disorders population.

In Australia prior to 1992, many patients with bleeding disorders were exposed to hepatitis C through blood products. However, the incidence, complications and response to treatment of chronic hepatitis C (CHC) in this population are poorly characterized. The aim of this study was to examine the prevalence of CHC and response to treatment in an Australian bleeding disorders population. Demographic data, virological data and liver disease status from these 700 patients with inherited bleeding disorders were analysed. Of these 700 patients, 424 (61%) had been tested for CHC infection and 219 (52%) were hepatitis C antibody positive, with the prevalence approaching 100% in patients with severe bleeding disorders. Of 219 patients, 73 (33%) had received treatment for their infection with a response rate of 33/73 (45%) across all genotypes. Of 219 patients, 34 (16%) had spontaneous viral clearance. When measured with transient elastography, 44/98 (45%) patients with CHC had significant liver fibrosis and 15/98 (15%) had liver cirrhosis. Of 130 patients, 38 (29%) with CHC infection had no evidence of follow-up with an appropriate clinician in the past 2 years. This study demonstrates that testing for CHC in this population is incomplete and treatment rates are low. Given the substantial morbidity and mortality associated with CHC and new therapeutic options becoming available, it seems important to reengage patients to diagnose, offer treatment and monitor this infection.

Relativistic ejecta from X-ray flash XRF 060218 and the rate of cosmic explosions.

Over the past decade, long-duration gamma-ray bursts (GRBs)--including the subclass of X-ray flashes (XRFs)--have been revealed to be a rare variety of type Ibc supernova. Although all these events result from the death of massive stars, the electromagnetic luminosities of GRBs and XRFs exceed those of ordinary type Ibc supernovae by many orders of magnitude. The essential physical process that causes a dying star to produce a GRB or XRF, and not just a supernova, is still unknown. Here we report radio and X-ray observations of XRF 060218 (associated with supernova SN 2006aj), the second-nearest GRB identified until now. We show that this event is a hundred times less energetic but ten times more common than cosmological GRBs. Moreover, it is distinguished from ordinary type Ibc supernovae by the presence of 10(48) erg coupled to mildly relativistic ejecta, along with a central engine (an accretion-fed, rapidly rotating compact source) that produces X-rays for weeks after the explosion. This suggests that the production of relativistic ejecta is the key physical distinction between GRBs or XRFs and ordinary supernovae, while the nature of the central engine (black hole or magnetar) may distinguish typical bursts from low-luminosity, spherical events like XRF 060218.

A novel explosive process is required for the gamma-ray burst GRB 060614.

Over the past decade, our physical understanding of gamma-ray bursts (GRBs) has progressed rapidly, thanks to the discovery and observation of their long-lived afterglow emission. Long-duration (> 2 s) GRBs are associated with the explosive deaths of massive stars ('collapsars', ref. 1), which produce accompanying supernovae; the short-duration (< or = 2 s) GRBs have a different origin, which has been argued to be the merger of two compact objects. Here we report optical observations of GRB 060614 (duration approximately 100 s, ref. 10) that rule out the presence of an associated supernova. This would seem to require a new explosive process: either a massive collapsar that powers a GRB without any associated supernova, or a new type of 'engine', as long-lived as the collapsar but without a massive star. We also show that the properties of the host galaxy (redshift z = 0.125) distinguish it from other long-duration GRB hosts and suggest that an entirely new type of GRB progenitor may be required.

The accuracy of breast MRI radiomic methodologies in predicting pathological complete response to neoadjuvant chemotherapy: A systematic review and network meta-analysis.

BACKGROUND: Achieving pathological complete response (pCR) to neoadjuvant chemotherapy (NAC) improves survival outcomes for breast cancer patients. Currently, conventional histopathological biomarkers predicting such responses are inconsistent. Studies investigating radiomic texture analysis from breast magnetic resonance imaging (MRI) to predict pCR have varied radiomic protocols introducing heterogeneity between results. Thus, the efficacy of radiomic profiles compared to conventional strategies to predict pCR are inconclusive. PURPOSE: Comparing the predictive accuracy of different breast MRI radiomic protocols to identify the optimal strategy in predicting pCR to NAC. MATERIAL AND METHODS: A systematic review and network meta-analysis was performed according to PRISMA guidelines. Four databases were searched up to October 4th, 2021. Nine predictive strategies were compared, including conventional biomarker parameters, MRI radiomic analysis conducted before, during, or after NAC, combination strategies and nomographic methodology. RESULTS: 14 studies included radiomic data from 2,722 breast cancers, of which 994 were used in validation cohorts. All MRI derived radiomic features improved predictive accuracy when compared to biomarkers, except for pre-NAC MRI radiomics (odds ratio [OR]: 0.00; 95 % CI: -0.07-0.08). During-NAC and post-NAC MRI improved predictive accuracy compared to Pre-NAC MRI (OR: 0.14, 95 % CI: 0.02-0.26) and (OR: 0.26, 95 % CI: 0.07-0.45) respectively. Combining multiple MRIs did not improve predictive performance compared to Mid- or Post-NAC MRIs individually. CONCLUSION: Radiomic analysis of breast MRIs improve identification of patients likely to achieve a pCR to NAC. Post-NAC MRI are the most accurate imaging method to extrapolate radiomic data to predict pCR.

Dental surgery with minimal factor support in the inherited bleeding disorder population at the Alfred Hospital.

In oral surgery, patients with inherited bleeding disorders have historically had factor cover where possible. Factor support is expensive, time consuming to administer and places the patient at a potential risk of complications of therapy. A protocol employing rigorous local measures and minimal factor replacement was used to obtain haemostasis following simple and complex oral surgery on 50 consecutive patients with inherited bleeding disorders, referred to the Alfred Health Dental Unit from the Ronald Sawers Haemophilia Centre, Alfred Health, Melbourne. Excellent haemostasis was achieved using standardized local measures of 5% tranexamic acid solution, surgicel and monocryl sutures. Oral surgery may be considered safe to perform in patients with inherited bleeding disorders using minimal factor support and meticulous local haemostatic measures.

The afterglow of GRB 050709 and the nature of the short-hard gamma-ray bursts.

The final chapter in the long-standing mystery of the gamma-ray bursts (GRBs) centres on the origin of the short-hard class of bursts, which are suspected on theoretical grounds to result from the coalescence of neutron-star or black-hole binary systems. Numerous searches for the afterglows of short-hard bursts have been made, galvanized by the revolution in our understanding of long-duration GRBs that followed the discovery in 1997 of their broadband (X-ray, optical and radio) afterglow emission. Here we present the discovery of the X-ray afterglow of a short-hard burst, GRB 050709, whose accurate position allows us to associate it unambiguously with a star-forming galaxy at redshift z = 0.160, and whose optical lightcurve definitively excludes a supernova association. Together with results from three other recent short-hard bursts, this suggests that short-hard bursts release much less energy than the long-duration GRBs. Models requiring young stellar populations, such as magnetars and collapsars, are ruled out, while coalescing degenerate binaries remain the most promising progenitor candidates.

Clinical utility of plain-film abdominal radiographs for inpatients outside standard working hours in a large university teaching hospital.

INTRODUCTION: Plain film abdominal radiographs (PFAs) are frequently the initial investigation ordered for patients with abdominal symptoms. However, increasing use of emergency ultrasound and availability of emergency CT raises the question of whether PFA remains an appropriate first line investigation. We investigated the impact of out of hours (OOH) PFAs on inpatient management. METHODS: All consecutive PFAs over an 8-week period were included to determine the impact on patient management. OOH was classified as from 5pm to 9am Monday to Friday, weekends and bank-holidays. PACS and hospital records were accessed to determine patient pathways. The institution is a tertiary referral centre with 850 acute beds and serves a population of 950,000. RESULTS: A total of 758 consecutive PFAs were performed in total (58.3% male, mean age 58.1 (range 0-93)). 310 (40.9%) were requested from the emergency department (ED) and 382 (50.4%) were requested from wards. 160 (21.1%) met the criteria of OOH, of these 120 (72.2%) were from ED and 28 were on adult inpatients. Of these 28, none had a change in management based on the PFA result. CONCLUSION: Our study suggests that OOH PFAs of inpatients are of limited clinical utility. These patients are exposed to extra radiation. IMPLICATIONS FOR PRACTICE: We propose that OOH PFAs of inpatients should be questioned as a viable investigation due to the limited contribution they offer in managing patients, the deleterious effects they confer on the patient and the associated economic cost. Further studies are needed to assess if these results are generalizable to other large hospitals.

Balance dysfunction in adults with haemophilia.

The main focus of lower limb physical performance assessment in people with haemophilia (PWH) has usually been on function, muscle strength and joint flexibility. The impact of haemophilic arthropathy on balance and falls risk is relatively under-explored. The aim of this study was to evaluate balance and related performance in PWH compared with age and gender matched healthy controls. It involved a comprehensive suite of clinical and laboratory measures of static and dynamic balance, mobility, strength, physical activity and falls efficacy completed in 20 PWH (mean age 39.4, 100% male) and 20 controls. Fifty percent of PWH reported falls in the past 12 months. Moderate impairment of balance and related measures were identified in PWH compared with the controls, with an average 35% difference between groups. Significant differences were evident between groups on both clinical and laboratory measures, including measures of dynamic bilateral stance balance [limits of stability measures on the laboratory test, functional reach; (P < 0.001); dynamic single leg balance (Step Test, P < 0.001)], gait and mobility (gait speed, step width and turning measures on the laboratory test, timed up and go test; P < 0.001); muscle strength (timed sit to stand, P = 0.002; quadriceps strength, P < 0.001); and activity level and falls efficacy, (P < 0.004). The dynamic clinical and laboratory measures testing similar domains of balance, gait and mobility had moderate correlations (0.310 < r < 0.531, P < 0.01). Moderate impairments in balance, mobility and related measures were identified in PWH, compared with the control group. Clinicians should include assessments of balance and related measures when reviewing adults with haemophilia.

Effectiveness of a balance training home exercise programme for adults with haemophilia: a pilot study.

Adults with haemophilia and other bleeding disorders often develop lower limb musculoskeletal problems associated with bleeds into joints and muscles, which may affect balance performance and increase likelihood of falling. The aim of this study was to evaluate the effectiveness of an individualized balance and strength home exercise programme on improving balance and related outcomes for adults with haemophilia and other bleeding disorders. Twenty male adults with haemophilia and other bleeding disorders (mean age 39.4 years, 95% CI = 33.7-45.1) were recruited to participate. They underwent a comprehensive clinical and force platform assessment of balance and related measures. Based on assessment findings, the assessing physiotherapist provided an individualized home exercise programme of balance, strengthening and walking exercises. Re-assessment occurred after the 4-month exercise programme. Twelve participants (60%) completed the programme and were re-assessed. There were no safety problems or dropouts associated with the exercise programme aggravating joint status. Although there were no statistically significant changes in any of the measures (adjusted for multiple comparisons), there were improvements of between 5% and 22% on 10 of the 16 measures, with the Neurocom modified Clinical Test of Sensory Interaction on Balance (P = 0.036) and Timed Sit to Stand (P = 0.064) approaching significance. A tailored home exercise programme targeting balance, strengthening and walking is feasible for adults with haemophilia and other bleeding disorders. These results suggest that positive physical outcomes including improved balance and mobility may be achieved with this type of programme.

An asymptotic-giant-branch star in the progenitor system of a type Ia supernova.

Stars that explode as supernovae come in two main classes. A type Ia supernova is recognized by the absence of hydrogen and the presence of elements such as silicon and sulphur in its spectrum; this class of supernova is thought to produce the majority of iron-peak elements in the Universe. They are also used as precise 'standard candles' to measure the distances to galaxies. While there is general agreement that a type Ia supernova is produced by an exploding white dwarf star, no progenitor system has ever been directly observed. Significant effort has gone into searching for circumstellar material to help discriminate between the possible kinds of progenitor systems, but no such material has hitherto been found associated with a type Ia supernova. Here we report the presence of strong hydrogen emission associated with the type Ia supernova SN2002ic, indicating the presence of large amounts of circumstellar material. We infer from this that the progenitor system contained a massive asymptotic-giant-branch star that lost several solar masses of hydrogen-rich gas before the supernova explosion.

Alberta Aboriginal Head Start in Urban and Northern Communities: longitudinal study pilot phase.

Aboriginal Head Start in Urban and Northern Communities (AHSUNC) is a federally funded, national, early childhood intervention strategy that addresses the needs of Aboriginal preschool children and their families. A pilot study, based on principles of community-based research, evaluated an Alberta Aboriginal Head Start (AHS) program offered off-reserve in Alberta. Overall, the results pertaining to children having followed an AHS program are positive. This phase 1 of a broader longitudinal evaluation study of all AHS sites in Alberta has led to the creation of several recommendations, which reinforce this type of evaluation and look to mitigate the limitations encountered in phase 1 (around available data, tools and context).

Wind as an abiotic factor of Colorado potato beetle (Coleoptera: Chrysomelidae) flight take-off activity under field conditions.

The flight take-off activity of Colorado potato beetles, Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae), was significantly higher at a landscape-protected than at semiexposed and exposed sites in a 2-yr field study. In both years, mean daylight temperature, solar radiation, and relative humidity were generally similar at all sites, but wind speed was lower at the protected site than at the exposed sites. Results suggest that wind was the limiting abiotic factor for flight take-off at the exposed site. Caged beetles exposed to constant wind speeds of 3.4, 4.7, and 7.0 m/s showed a significant corresponding decrease in number of flight take-off. There was no cumulative effect of wind exposure on the readiness of the beetles to fly, suggesting that wind acts as a physical barrier to flight take-off. It should be possible to reduce Colorado potato beetle flight dispersal by selecting fields most exposed to wind over landscape-protected fields when rotating potato, Solanum tuberosum L., crops.