scholarly journals A comparison of ultrasound guided bilateral single injection shot Erector Spinae Plane blocks versus wound infiltration for post-operative analgesia in laparoscopic assisted colonic surgery- a prospective randomised study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
V. Rao Kadam ◽  
G. Ludbrook ◽  
R. M. van Wijk ◽  
P. Hewett ◽  
V. Thiruvenkatarajan ◽  
...  
Keyword(s):  
Elective Surgery ◽  
Erector Spinae ◽  
Trial Registration ◽  
Colonic Surgery ◽  
Clinical Trial Registry ◽  
Wound Infiltration ◽  
Significant Treatment ◽  
Anaesthetic Care ◽  
Significant Difference ◽  
Laparoscopic Assisted

Abstract Background Both wound infiltration (WI) with local anaesthetic and Erector Spinae Plane block (ESPB) have been described for post-operative analgesia after abdominal surgery. This study compared the efficacy of WI versus ESPB for post-operative analgesia after laparoscopic assisted colonic surgery. Methods Seventy-two patients between 18 and 85 years of age undergoing elective surgery were randomised to receive either WI or ESPB. In the WI group a 40 ml bolus of 0.5% Ropivacaine, infiltrated at the ports and minimally invasive wound at subcutaneous and fascia layers. In the ESPB group at T8 level, under ultrasound guidance, a 22-gauge nerve block needle was passed through the Erector Spinae muscle to reach its fascia. A dose up to 40 ml of 0.5% Ropivacaine, divided into two equal volumes, was injected at each side. Both groups had a multimodal analgesic regime, including regular Paracetamol, dexamethasone and patient-controlled analgesia (PCA) with Fentanyl. The primary end point was a post-operative pain score utilising a verbal Numerical Rating Score (NRS, 0–10) on rest and coughing in the post anaesthetic care unit (PACU) and in the first 24 h. Secondary outcomes measured were: opioid usage, length of stay and any clinical adverse events. Results There was no significant treatment difference in PACU NRS at rest and coughing (p-values 0. 382 and 0.595respectively). Similarly, there were no significant differences in first 24 h NRS at rest and coughing (p-values 0.285 and 0.431 respectively). There was no significant difference in Fentanyl use in PACU or in the first 24 h (p- values 0.900 and 0.783 respectively). Neither was there a significant difference found in mean total Fentanyl use between ESPB and WI groups (p-value 0.787). Conclusion Our observations found both interventions had an overall similar efficacy. Trial registration The study was registered with the Australian New Zealand Clinical Trial Registry (ACTRN: 12619000113156).

scholarly journals Comparing Two Treatment Approaches for Patients with Type 1 Diabetes During Aerobic Exercise: a Randomised, Crossover Study

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Varun Vartak ◽  
Lynne Chepulis ◽  
Matthew Driller ◽  
Ryan G. Paul
Keyword(s):  
Type 1 Diabetes ◽  
Blood Glucose ◽  
Aerobic Exercise ◽  
Perceived Exertion ◽  
Trial Registration ◽  
Clinical Trial Registry ◽  
Glucose Levels ◽  
Significant Difference ◽  
Mild Hypoglycaemia

Abstract Background In a randomised, counterbalanced, crossover design, eight men with type 1 diabetes (T1D; mean ± SD age, 27.6 ± 11.4 years) reduced insulin (INS) by 50% of their normal dose or consumed carbohydrates equivalent to 1 g of carbohydrate per kilogramme of their body weight without the usual insulin bolus (CARBS) over two sessions, held a week apart. Each session included standardised meals, a 45-min treadmill walk at 7.24 km h−1 and a 6-min walk test (6MWT). Rate of perceived exertion (RPE), blood glucose, ketone and lactate measures were taken before, during and immediately after the aerobic exercise. The distance covered in metres and the predicted VO2 max (mL kg−1 min−1) were also calculated for the 6MWT. Results Participants completing the INS intervention spent more time in normoglycaemia (242 ± 135 min vs 88 ± 132 min; P < 0.01) and less time in hyperglycaemia (41 ± 95 min vs 154 ± 125 min; P = 0.01) as compared to the CARBS intervention. Mild hypoglycaemia occurred in two participants during INS and no participants during CARBS. Furthermore, there was no significant difference for blood lactate, ketone, RPE, distance covered and predicted VO2 max between interventions. Conclusion Based on this pilot study, INS intervention appears to be the best approach for maintaining blood glucose levels in those with T1D during aerobic exercise, though this does need evaluation in other groups, including women, children and those with suboptimal glycaemic control. Trial Registration Australian New Zealand Clinical Trial Registry, ACTRN12619001397101p. Registered 09 September 2019.

scholarly journals The midline approach for endotracheal intubation with GlideScope video laryngoscopy could provide a better glottis exposure in adults:A randomised controlled trial

2019 ◽  
Author(s):  
Lianxiang Jiang ◽  
Shulin Qiu ◽  
Peng Zhang ◽  
Weidong Yao ◽  
Yan Chang ◽  
...  
Keyword(s):  
Tracheal Intubation ◽  
Endotracheal Intubation ◽  
Elective Surgery ◽  
Controlled Trial ◽  
Video Laryngoscopy ◽  
Controlled Study ◽  
Clinical Trial Registry ◽  
Significant Difference ◽  
Midline Approach ◽  
Approach Group

Abstract Background: Previous studies demonstrated that the common laryngoscopic approach (right-sided) and midline approach are both used for endotracheal intubation by direct laryngoscopy. Although a midline approach is commonly recommended for video laryngoscopy (VL) in clinical, lacking of published evidences to support it. The study aimed to evaluate the effects of different video laryngoscopic approach on intubation. Methods: Two hundred and sixty-two patients aged 18 years who underwent elective surgery in general anesthesia, requiring endotracheal intubation, were included in the prospective, randomized, controlled study. Participants were randomly and equally allocated to right approach (Group R) or midline approach (Group M). All intubations were conducted with GlideScope video laryngoscopy by experienced anaesthetists. The primary outcomes were Cormack-Lehane laryngoscopic views (CLV) and first-pass success (FPS) rate. The secondary outcomes were time to glottis exposure, time to tracheal intubation, hemodynamic response and other adverse events. Comparative analysis was performed between the both groups. Results: All patients ultimately were successfully intubated. No significant differences were observed in patient characteristics and airway assessments (P＞0.05). Compared with Group R, Group M had a better CLV (χ2=14.706, P=0.001) and shorter time to glottis exposure (8.82±2.04 vs 12.38±1.81, t=14.94, P<0.001) and tracheal intubation (37.19±5.01 vs 45.23±4.81, t=13.25, P<0.001), but no difference in FPS rate (70.2% vs 71.8%, χ2=0.074, P=0.446). Between groups, the rates of hoarseness or sore throat, minor injury, hypoxemiaand changes of SBP and HR were noted no significant difference (P＞0.05). Conclusion: Although FPS rate did not differ based upon laryngoscopic approach type; however, the midline approach could provide a better glottis exposure, shorter time to glottis exposure and intubation. The midline approach should be recommended for teaching in VL-assisted endotracheal intubation. Trial registration: The study was registered in Chinese Clinical Trial Registry (ChiCTR-RNC-13003898). Keywords: endotracheal intubation; video laryngoscopic; laryngoscopic approach

scholarly journals Ketorolac tromethamine pretreatment suppresses sufentanil-induced cough during general anesthesia induction: a prospective randomized controlled trial

2020 ◽  
Author(s):  
Zhen Tian ◽  
Bei Hu ◽  
Min Miao ◽  
Lulu Zhang ◽  
Lin Wang ◽  
...  
Keyword(s):  
General Anesthesia ◽  
Elective Surgery ◽  
Controlled Trial ◽  
Recovery Period ◽  
Control Group ◽  
Anesthesia Induction ◽  
Observation Group ◽  
Ketorolac Tromethamine ◽  
Clinical Trial Registry ◽  
Significant Difference

Abstract Background: To observe the effect about pretreatment of ketorolac tromethamine on sufentanil-induced cough in general anesthesia patients. Methods: 102 patients were screened, and a total of 90 patients were scheduled for elective surgery under general anesthesia. 90 patients were randomly divided into two groups: the control group（C group）and the observation group（KT group）. 5 minutes before anesthesia induction, observation group were given ketorolac tromethamine 0.5mg/kg intravenously within 3 s, while the control group were given the same amount of normal saline intravenously. All patients were given a sufentanil bolus of 0.5 ug/kg（within 3 s）intravenously,1 minute later, propofol 2.5mg/kg, vecuronium 0.15mg/kg were injected intravenously, and endotracheal intubation was guided by laryngoscope. The number of coughs that occurred within 1 min after sufentanil injection were recorded. The mean arterial pressure (MAP)，heart rate (HR) and pulse oxygen saturation(SpO2) were recorded at T0 (immediately before pretreatment), T1 (5 minutes after pretreatment), T2（before intubation），T3 (1 min after intubation) and T4 (5 min after intubation).The incidence of adverse reactions were analyzed. Results: Within 1 min after sufentanil injection, the incidence and severity of cough in KT group was significantly lower than that in C group ( P < 0.05). At the time points of T0, T1, T2, T3 and T4, there was no significant difference in MAP, HR and SpO2 between the two groups ( P > 0.05). And there was no significant difference in the dosage of sufentanil, propofol, remifentanil and vecuronium, incidence of nausea and vomiting, delay of recovery, dizziness, drowsiness and respiratory depression between the two groups( P > 0.05). However, there were significant differences in the number of restlessness during waking period ( P < 0.05). Conclusion: Pretreatment of intravenous ketorolac tromethamine can significantly reduce the incidence of sufentanil-induced cough during induction period of general anesthesia patients, and can also significantly reduce the restlessness during recovery period of patients. Trial registration: Chinese Clinical Trial Registry (registration number# ChiCTR2000030287; date of registration: 27/02/2020).

scholarly journals Comparison of effect of intrathecal dexmedetomidine and clonidine as an adjuvant to hyperbaric bupivacaine in patients undergoing surgery for fracture femur and tibia

2017 ◽  
Vol 4 (12) ◽  
pp. 3833
Author(s):  
G. Praveen Chandra ◽  
Sampathi Shiva Krishna ◽  
Pooja Singh
Keyword(s):  
Motor Block ◽  
Elective Surgery ◽  
Onset Time ◽  
Hyperbaric Bupivacaine ◽  
Wound Infiltration ◽  
Nerve Blocks ◽  
Rescue Analgesia ◽  
Fracture Femur ◽  
Significant Difference ◽  
Group D

Background: Spinal anaesthesia with bupivacaine is administered routinely for lower abdominal and lower limb surgeries. The ensuing nerve block is sufficient to ensure patient’s wellbeing, while motor block facilitates the surgeon’s work. Post-operative pain relief can be achieved by various methods namely systemic opioid and non-opioid peripheral nerve blocks and local wound infiltration, each with their own merits and demerits. the present study was undertaken to compare the effect of intrathecal dexmedetomidine and clonidine as an adjuvant to hyperbaric bupivacaine in patients undergoing surgery for fracture femur and tibia.Methods: 80 patients between 20-60 years, undergoing elective surgery for closed fracture shaft of femur and tibia with ASA physical status of 1 and 2 were included in the study. All the subjects were randomly allocated to one of the two groups (Group C and Group D) by a computer-generated randomization chart. Group C received 2.5ml of 0.5% hyperbaric bupivacaine with 50mcg clonidine and group D received 2.5ml of 0.5% hyperbaric bupivacaine with 5mcg dexmedetomidine.Results: 30 of the 40 patients in group C were of ASA I and 10 were ASA II, while in group D, 25 were ASA I and 15 were ASA II. A significant difference was found in the onset time for sensory and motor block, receding time for sensory and motor block and the need of the first rescue analgesia between the two groups, showing that Dexmedetomidine was more potent than clonidine.Conclusions: Dexmedetomidine is a potent, highly selective and specific α2-adrenoreceptor agonist that has both sedative and analgesic effects and is also a valuable adjuvant when regional anaesthesia is incorporated.

Extrakorporális és intrakorporális anasztomózis rövid távú eredményeinek összehasonlítása malignus daganat miatt végzett laparoszkópos jobb oldali hemikolektómia esetén

2020 ◽  
Vol 73 (4) ◽  
pp. 148-152
Author(s):  
Kornél Vajda ◽  
László Sikorszki
Keyword(s):  
Length Of Stay ◽  
Gold Standard ◽  
Average Length ◽  
Colon Surgery ◽  
Right Hemicolectomy ◽  
Malignant Tumours ◽  
Short Term ◽  
Significant Difference ◽  
Laparoscopic Assisted ◽  
Laparoscopic Hemicolectomy

Összefoglaló. Bevezetés: A laparoszkópia térhódítása a jobb oldali colon műtéteknél is nyilvánvaló. Ma legtöbb helyen a laparoszkóposan asszisztált jobb oldali hemikolektómia extrakorporális anasztomózissal a gold standard. A morbiditás randomizált vizsgálatok alapján még 30% körüli. A technikai fejlődés lehetővé tette az intrakorporális anasztomózist. Célkitűzés: Retrospektív módon elemezni rosszindulatú jobb oldali vastagbéldaganat miatt végzett laparoszkópos hemikolektómiák rövid távú eredményeit a két módszer összehasonlításával. Eredmények: 2018. 01. 01. – 2019. 12. 31. között 184 jobb oldali hemikolektómiát végeztünk, ezek közül 122 történt malignus betegség miatt. 51 esetben nyitott és 71 esetben laparoszkópos műtét történt. 37 férfi (átlagéletkor: 70,59 év) és 34 nő (átlagéletkor: 72,14 év) volt. 50 esetben extrakorporális (EA) és 21 esetben pedig intrakorporális anasztomózist (IA) végeztünk. Az EA csoportban 18, míg az IA csoportban 3 szövődmény alakult ki 30 napon belül (p = 0,067). Az EA csoportból 3, az IA csoportból 1 beteget veszítettünk el 30 napon belül (p = 0,66). Az átlagos ápolási idő az EA csoportban 9,48 (5–32) nap, míg az IA csoportban 6,52 (4–19) nap volt (p = 0,001) a szövődményes esetekkel együtt. A szövődményes esetek nélkül az EA csoportban 6,35 (5–10) nap, az IA csoportban pedig 5,55 (4–8) napnak bizonyult (p = 0,09). A műtéti idő pedig az EA csoportban 147 (90–240) perc, az IA csoportban pedig 146,47 (90–265) perc volt (p = 0,11). Konklúzió: Az irodalommal összhangban azt találtuk, hogy IA esetén kevesebb a szövődmény, ezzel is összefüggésben rövidebb az átlagos ápolási idő, és a műtéti időt tekintve nincs szignifikáns különbség. Ezeket figyelembe véve az intrakorporális anasztomózis javasolható jobb oldali laparoszkópos hemikolektómia esetén. Summary. Introduction: Laparoscopy became evident for right-sided colon surgery too. Today the laparoscopic-assisted right-hemicolectomy is the gold standard with extracorporeal anastomosis. Morbidity according to randomized trials is still approximately 30%. The development of the surgical technique resulted in the creation of intracorporeal anastomosis. Our aim was to compare the short-term results of the two methods. Aim: To analyse the short-term results of right-sided hemicolectomy that were performed due to malignant tumours with the comparison of the two methods. Results: A cohort of 184 right-sided hemicolectomy were performed from 01.01.2018 to 31.12.2019 from which 122 were operated on because of a malignant disease. 51 open and 71 laparoscopic operations were performed. The average age of 37 men and 34 women were 70.59 and 72.14 years, respectively. 50 patients underwent extracorporeal (EA) anastomosis and 21 intracorporeal (IA) anastomosis. Within 30 days the number of complications were 18 in the EA group and 3 in the IA group (p = 0.067). 3 from the EA group and 1 from IA group died within 30 days (p = 0.66). The average length of stay were 9.48 days in the EA group and 6.52 days in the IA group together with the complicated cases (p = 0.001) while 6.35 days and 5.55 days without the complicated cases (p = 0.09). The average duration of operation was 147 minutes in the EA and 146.47 minutes in the IA group (p = 0.11). Conclusion: We found concordance with the literature that there are fewer complications in case of IA which might be related to shorter length of stay. There is no significant difference between the surgical times. Bearing these facts in mind, IA might be suggested for right- sided laparoscopic hemicolectomy.

scholarly journals Utility of the optical quality analysis system for decision-making in Nd: YAG laser posterior capsulotomy in patients with light posterior capsule opacity

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Bo Lu ◽  
Weijie Zhu ◽  
Yu Fan ◽  
Dong Shi ◽  
Liwei Ma
Keyword(s):  
Area Under The Curve ◽  
Quality Parameters ◽  
Optical Quality ◽  
Quality Analysis ◽  
Posterior Capsule ◽  
Clinical Trial Registry ◽  
Posterior Capsulotomy ◽  
Significant Difference ◽  
Analysis System ◽  
Scattering Index

Abstract Background A prospective cohort study was performed to evaluate whether the Optical Quality Analysis System (OQAS) can serve as a valuable additional indicator for appropriate posterior capsulotomy referral. Methods One hundred and five eyes from 96 patients undergoing capsulotomy were divided into precapsulotomy logMAR CDVA ≤0.1 group and logMAR CDVA > 0.1 group. CDVA, and the Visual Function 14 index (VF-14) score were estimated before and 1 month after capsulotomy. The objective scattering index (OSI) value was measured by using the OQAS. Posterior capsule opacification (PCO) severity was assessed with Evaluation of PCO 2000 (EPCO 2000) software. Results In logMAR CDVA > 0.1 group, the correlations of OSI, logMAR CDVA, EPCO score and VF-14 score were very strong preoperatively. In logMAR CDVA ≤0.1 group, preoperatively, OSI was correlated with logMAR CDVA (r = 0.451), EPCO score (r = 0.789), and VF-14 score (r = 0.852). LogMAR CDVA has weak correlation with VF-14 score (r = − 0.384) and EPCO score (r = 0.566). VF-14 score was correlated with EPCO score (r = − 0.669). In the logMAR CDVA ≤0.1 group, there was no significant difference in logMAR CDVA between precapsulotomy and postcapsulotomy (P > 0.05). In the two groups, all the other optical quality parameters were significantly improved after capsulotomy (P < 0.05). In logMAR CDVA > 0.1 group, the area under the curve of the ROC of the OSI was 0.996 (P = 0.000). In logMAR CDVA ≤0.1 group, the area under the curve of the ROC of the OSI was 0.943 (P = 0.000). Conclusions The OSI was useful for evaluating of PCO and prediction of beneficial capsulotomy. Especially for patients with slight PCO and better visual acuity, OSI is more valuable than CDVA and completely objective examination. Trial registration The study protocol was registered at the Chinese Clinical Trial Registry. Register: ChiCTR1800018842 (Registered Date: October 13th, 2018).

scholarly journals Effects of the Active Kids voucher program on children and adolescents’ physical activity: a natural experiment evaluating a state-wide intervention

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Bridget C. Foley ◽  
Katherine B. Owen ◽  
Adrian E. Bauman ◽  
William Bellew ◽  
Lindsey J. Reece
Keyword(s):  
Physical Activity ◽  
Children And Adolescents ◽  
Online Survey ◽  
Specific Activity ◽  
Financial Incentive ◽  
Trial Registration ◽  
Physical Activity Participation ◽  
Activity Participation ◽  
Clinical Trial Registry ◽  
Voucher Program

Abstract Background There is an urgent need for scaled-up effective interventions which overcome barriers to health-enhancing physical activity for children and adolescents. In New South Wales (NSW), Australia, the state government implemented a universal voucher program, ‘Active Kids’ to support the cost of structured physical activity registration for school-enrolled children aged 4.5–18 years old. The objective of this study was to understand the effects a financial incentive intervention delivered in a real-world setting has on children and adolescent’s physical activity participation. Method In 2018, all children and adolescents registered for an Active Kids voucher provided sociodemographic characteristics, physical activity and research consent. This prospective cohort study used an online survey with validated items to measure physical activity and other personal and social factors in children and adolescents who used an Active Kids voucher. Generalized linear mixed models were used to examine changes from registration to after voucher use at ≤8 weeks, 9–26 weeks and ≥ 6 months. Results Study participants reported increasing their days achieving physical activity guidelines from 4.0 days per week (95%CI 3.8, 4.2) at registration (n = 37,626 children) to 4.9 days per week (95%CI 4.7, 5.1) after 6 months (n = 14,118 children). Increased physical activity was observed for all sociodemographic population groups. The voucher-specific activity contributed 42.4% (95%CI 39.3, 45.5) to the total time children participated in structured physical activities outside of school. Children and adolescents who increased to, or maintained, high levels of activity were socially supported to be active, had active parent/caregivers, had better concentration and were overall happier than their low-active counterparts. Conclusion The Active Kids program significantly increased children’s physical activity levels and these increases continued over a six-month period. The Active Kids voucher program shows promise as a scaled-up intervention to increase children and adolescents’ physical activity participation. Trial registration Australian New Zealand Clinical Trial Registry ACTRN12618000897268, approved May 29th, 2018 - Retrospectively registered.

scholarly journals Clinical metagenomics assessments improve diagnosis and outcomes in community-acquired pneumonia

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Fei Xie ◽  
Zhimei Duan ◽  
Weiqi Zeng ◽  
Shumei Xie ◽  
Mingzhou Xie ◽  
...  
Keyword(s):  
Patient Outcomes ◽  
Clinical Management ◽  
Pathogen Detection ◽  
Community Acquired Pneumonia ◽  
Diagnostic Methods ◽  
Trial Registration ◽  
Clinical Trial Registry ◽  
Registration Number ◽  
Next Generation Sequencing Ngs ◽  
Generation Sequencing

Abstract Background Identifying the causes of community-acquired pneumonia (CAP) is challenging due to the disease’s complex etiology and the limitations of traditional microbiological diagnostic methods. Recent advances in next generation sequencing (NGS)-based metagenomics allow pan-pathogen detection in a single assay, and may have significant advantages over culture-based techniques. Results We conducted a cohort study of 159 CAP patients to assess the diagnostic performance of a clinical metagenomics assay and its impact on clinical management and patient outcomes. When compared to other techniques, clinical metagenomics detected more pathogens in more CAP cases, and identified a substantial number of polymicrobial infections. Moreover, metagenomics results led to changes in or confirmation of clinical management in 35 of 59 cases; these 35 cases also had significantly improved patient outcomes. Conclusions Clinical metagenomics could be a valuable tool for the diagnosis and treatment of CAP. Trial registration Trial registration number with the Chinese Clinical Trial Registry: ChiCTR2100043628.

scholarly journals Robotic colorectal surgery: more than a fantastic toy?

2018 ◽  
Vol 3 (1) ◽  
pp. 65-68 ◽  
Author(s):  
James W.T. Toh ◽  
Kevin Phan ◽  
Seon-Hahn Kim
Keyword(s):  
Rectal Cancer ◽  
Colorectal Surgery ◽  
Da Vinci Surgical System ◽  
Current Evidence ◽  
Rectal Cancer Surgery ◽  
Cancer Trial ◽  
Robotic Colorectal Surgery ◽  
Significant Difference ◽  
Meta Analyses ◽  
Laparoscopic Assisted

AbstractThere has been a rapid rise in the number of robotic colorectal procedures worldwide since the da Vinci Surgical System robotic technology was approved for surgical procedures in the year 2000. Several recent meta-analyses and systematic reviews have shown a significant difference in outcomes between robotic and laparoscopic rectal cancer surgery. However, these results from pooled data have not been supported by the initial results reported from the Robotic assisted versus laparoscopic assisted resection for rectal cancer trial. In this article, we examine the current evidence for robotic colorectal surgery, assess its features and functionality, evaluate its learning curve and provide our perspective on its future.

scholarly journals Absence of Association between Preoperative Estimated Glomerular Filtration Rates and Postoperative Outcomes following Elective Gastrointestinal Surgeries: A Prospective Cohort Study

2018 ◽  
Vol 2018 ◽  
pp. 1-7
Author(s):  
Sivesh K. Kamarajah ◽  
Behrad Barmayehvar ◽  
Mustafa Sowida ◽  
Amirul Adlan ◽  
Christina Reihill ◽  
...  
Keyword(s):  
Risk Stratification ◽  
Glomerular Filtration ◽  
Elective Surgery ◽  
Gastrointestinal Surgery ◽  
Major Complication ◽  
Postoperative Outcomes ◽  
Queen Elizabeth Hospital ◽  
Complication Rates ◽  
Significant Difference ◽  
The Impact

Background. Preoperative risk stratification and optimising care of patients undergoing elective surgery are important to reduce the risk of postoperative outcomes. Renal dysfunction is becoming increasingly prevalent, but its impact on patients undergoing elective gastrointestinal surgery is unknown although much evidence is available for cardiac surgery. This study aimed to investigate the impact of preoperative estimated glomerular filtration rate (eGFR) and postoperative outcomes in patients undergoing elective gastrointestinal surgeries. Methods. This prospective study included consecutive adult patients undergoing elective gastrointestinal surgeries attending preassessment screening (PAS) clinics at the Queen Elizabeth Hospital Birmingham (QEHB) between July and August 2016. Primary outcome measure was 30-day overall complication rates and secondary outcomes were grade of complications, 30-day readmission rates, and postoperative care setting. Results. This study included 370 patients, of which 11% (41/370) had eGFR of <60 ml/min/1.73 m2. Patients with eGFR < 60 ml/min/1.73 m2 were more likely to have ASA grade 3/4 (p<0.001) and >2 comorbidities (p<0.001). Overall complication rates were 15% (54/370), with no significant difference in overall (p=0.644) and major complication rates (p=0.831) between both groups. In adjusted models, only surgery grade was predictive of overall complications. Preoperative eGFR did not impact on overall complications (HR: 0.89, 95% CI: 0.45–1.54; p=0.2). Conclusions. Preoperative eGFR does not appear to impact on postoperative complications in patients undergoing elective gastrointestinal surgeries, even when stratified by surgery grade. These findings will help preassessment clinics in risk stratification and optimisation of perioperative care of patients.

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