Overall Rate Of Complications Research Articles

Comparative safety outcomes of leadless versus transvenous cardiac pacemaker: a systematic review and meta-analysis

Abstract Introduction Leadless Cardiac Pacemakers (LCP) have emerged as a promising alternative to Transvenous Pacemakers (TVP) for managing bradyarrhythmias, especially in cases where TVP options are limited, such as venous access issues in haemodialysis patients or high infection risk individuals. However, long-term safety data, including mortality and hospitalisation rates, are lacking, hindering informed clinical adoption decisions. Purpose This systematic review and meta-analysis compares safety endpoints of LCP with TVP. Methods A systematic search of PubMed, Medline, Embase, Scopus, Web of Sciences, and gray literature was conducted following PRISMA guidelines from release of the Micra LCP to market until May 15, 2023. Meta-analysis was performed using RevMan 5.4. Results Twenty-four studies including data from 33,450 patients (12,802 LCP, 20,648 TVP) were evaluated. The mean age of the population was 77.5 ± 10.6 years, with a mean left ventricular ejection fraction (LVEF) of 58.6 % ± 6.7. Follow-up durations ranged from 6 to 36 months. Compared to TVP, the LCP was associated with significantly fewer overall complications, major complications, acute, mid-term complications, hospitalisations, re-interventions, and device dislodgements (p<0.05). Mortality, tricuspid regurgitation, pacemaker-induced cardiomyopathy, and heart failure hospitalisation rates did not significantly differ. Although LCP showed higher cardiac injury risk, no significant difference in cardiac tamponade rates was observed (Figure 2). LCP exhibited increased vascular-related complications but decreased lung injury, endocarditis, device, and pocket-related issues. Conclusion In the largest review of LCPs, we report that LCP is associated with significantly lower rates of overall complications compared to conventional TVP. This knowledge is critically important as more LCPs enter clinical practice and serves as a baseline against which future data can be evaluated. Nevertheless, proper skill training may help to mitigate the risk of vascular and cardiac injury. These findings underscore the importance of conducting randomized controlled trials to comprehensively evaluate the safety of LCP compared to TVP.Cardiac complication

51 Feasibility of paediatric postoperative telemedicine in Nunavik

Abstract Background To access surgical care, Inuit children from Nunavik are relocated by plane to an urban tertiary hospital. Current processes that require an in-person follow-up appointment extend their stay away from home despite an overall low rate of postoperative complications. Telemedicine presents the opportunity to reduce this delay, but little is known about its feasibility for paediatric postoperative care in Nunavik. Objectives To determine the feasibility of paediatric postoperative telemedicine in Nunavik. Design/Methods In this mixed methods study using a convergent parallel design (August 2022 – May 2023), we recruited eleven healthcare providers who regularly interact with Inuit families of Nunavik. We conducted individual semi-structured in-depth interviews about postoperative care in this setting and analyzed the data thematically. In parallel, we conducted a narrative synthesis of the literature and gathered input from collaborators to assess the potential resources needed to enable postoperative telemedicine in the region. We then determined the capability for telemedicine in each of the fourteen villages of Nunavik using data provided by the regional health board. A meeting with specialists responsible for telemedicine in the region was held to discuss findings and future steps. We analyzed and compared qualitative and quantitative results to determine the degree of postoperative telemedicine readiness in the region. Results The main themes influencing the feasibility of telemedicine were general considerations for telemedicine use as a follow-up modality, patient characteristics most suitable for postoperative telemedicine, resources needed for telemedicine use as a follow-up modality, and the feasibility of postoperative telemedicine as determined by healthcare providers. All interviewees deemed paediatric postoperative telemedicine in this region feasible but highlighted conditions for its success. The narrative review uncovered limited literature on telemedicine use in Nunavik. As of January 2023, the two regional hospitals and three health centers had full capabilities for postoperative telemedicine. The nine other health centers had partial capabilities, mainly due to limited access to stable high-speed Internet and Internet bandwidth. Only regional hospitals had access to hospitalization, imaging, readaptation, and laboratory departments. The participating specialists deemed telemedicine feasible if patient load and burden of administrative work are manageable. Conclusion Postoperative paediatric telemedicine in Nunavik is feasible from a resource, healthcare providers and specialists standpoint. Leveraging centers with appropriate capacity would allow the increase in telemedicine usage in Nunavik. Next steps in this research program include interviews with families to evaluate their needs, preferences and attitudes toward postoperative paediatric telemedicine.

Differentiated approach to the treatment of femoral fractures in children 0–7 years old using osteosynthesis with flexible titanium rods

Background. Fractures of the femur, especially its diaphysis, are quite common in pediatric practice. One of the priorities in the treatment of hip fractures in children is elastic stable intramedullary osteosynthesis with flexible titanium rods (ESIN/TEN), however, the frequency of using conservative methods also remains high. Aim. To differentiate the approach to the treatment of femoral fractures in children aged 0–7 years. Materials and methods. The immediate results of treatment of femoral fractures in 118 children aged 0 to 7 years (mean age 3.3±1.8 years) were studied. The main group consisted of 62 children who underwent surgical treatment of diaphyseal femoral fractures, while ESIN osteosynthesis was performed in 56 patients. The reference group was formed by a retrospective analysis of the medical records of 56 children who received conservative treatment of hip fractures. Results. Compared with conservative methods, with ESIN, the overall rate of early complications (skin reaction) was significantly lower, there were no complications from the internal organs (kidneys, lungs), and there were 3 (4.8%) cases of fixative migration. The severity of pain after 3 weeks from the start of treatment in the main group decreased to 2.4±0.1 points (mild pain), and in the reference group – to 4.5±0.3 points (moderate pain; p=0.013). The average length of stay of patients in the hospital in the main group was 7.3±2.4 days, in the reference group – 21.2±5.9 days (p=0.008). Conclusion. ESIN is the optimal method of stabilization for diaphyseal fractures of the femur in children aged 0 to 7 years. The advantages of ESIN over conservative methods are lower morbidity, greater pain relief, and shorter hospital stays for children.

Big data analysis reveals significant increases in complications, costs, and hospital stay in revision total knee arthroplasty compared to primary TKA.

Despite significant advancements in total knee arthroplasty (TKA), some patients require revision surgery (R-TKA) due to complications such as infection, mechanical loosening, instability, periprosthetic fractures, and persistent pain. This study aimed to explore the specific causes leading to R-TKA, associated complications, including infection, mechanical failure, and wound issues, as well as costs, mortality rates, and hospital length of stay (LOS) using data from a large national database. Data from the nationwide inpatient sample (NIS), the largest publicly available all-payer inpatient care database in the United States were analysed from 1 January 2016 to 31 December 2019. The study included 44,649 R-TKA cases, corresponding to 223,240 patients, with exclusions for nonelective admissions. Various statistical analyses were used to assess clinical outcomes, including in-hospital mortality, postoperative complications, LOS, and hospitalization costs. Among 2,636,880 TKA patients, 8.4% underwent R-TKA. R-TKA patients had higher rates of chronic conditions, including mental disorders (36.4%) and renal disease (9.9%). Additionally, these patients often experienced instability, necessitating revision surgery. Infection (22.3%) was the primary reason for R-TKA, followed by mechanical loosening (22.9%) and instability. Compared to primary TKA patients, R-TKA patients exhibited higher in-hospital mortality (0.085% vs. 0.025%), longer LOS (3.1 vs. 2.28 days), and higher total charges ($97,815 vs. $62,188). Postoperative complications, including blood transfusion (4.6% vs. 1.3%), acute kidney injury (4.4% vs. 1.8%), venous thromboembolism (0.55% vs. 0.29%), infection, and wound problems, were significantly higher in R-TKA patients. This study provides detailed insights into t LOS, costs, and complications associated with specific etiologies of revision TKA. Our findings emphasize the need for targeted preoperative optimization and patient education. This approach can help reduce the incidence and burden of R-TKA, improve patient care, optimize resource allocation, and potentially decrease the overall rates of complications in revision surgeries. Level III.

The Impact of Antibiotic Prophylaxis with Cefazolin, and Ceftizoxime Along with Aminoglycosides on Postoperative Complications, Hospitalization, and Returning to Normal Life for Percutaneous Nephrolithotomy, a Prospective Cross-Sectional Study

Background: This study investigated the efficacy of first-generation cephalosporin (cefazolin) and third-generation cephalosporin (ceftizoxime) as prophylactic antibiotics in patients undergoing percutaneous nephrolithotomy (PCNL) surgery. Objectives: The study also examined the incidence of postoperative complications, hospitalization duration, and time to return to normal life. Methods: This prospective cross-sectional study included patients (≥ 20 years) who underwent PCNL surgery at Razi, Golsar, and Pars Hospitals from January 1, 2013, to December 31, 2022. Patients were divided into two groups, receiving 1 mg/kg of either first-generation (cefazolin) or third-generation (ceftizoxime) cephalosporin intravenously, 30 minutes before surgery. The incidence of postoperative complications, hospitalization duration, and return to normal life were compared based on the type of prophylactic antibiotic. Risk factors were evaluated using chi-squared tests followed by multivariate logistic regression analysis. Results: The ceftizoxime group showed significantly lower rates of overall complications (13.0% vs. 31.4%) and postoperative fever (2.8% vs. 15.0%) compared to the cefazolin group. The ceftizoxime group also had a significantly shorter hospitalization duration (1.31 ± 1.18 days) compared to the cefazolin group (4.03 ± 1.57 days) (P = 0.000). Additionally, the ceftizoxime group had a significantly faster return to normal life (5.97 ± 3.37 days) compared to the cefazolin group (8.15 ± 2.93 days) (P = 0.001). Conclusions: The third-generation prophylactic cephalosporin (ceftizoxime) was more effective than the first-generation (cefazolin) in reducing postoperative fever rates, shortening hospitalization duration, and expediting the return to normal life for patients.

Fifty free flaps from the ear

Reconstruction of facial and intraoral defects is often challenging. Local pedicled flaps may not always be available and distant free flaps usually have suboptimal color match and texture for the facial area. The aim of this study was to assess whether auricular free flaps are a valid reconstructive option. Clinical data and outcomes of patients who underwent reconstruction with microsurgical flaps from the ear between 2011 and 2021 were analyzed. Patient demographic data, type of flaps, etiology, location and size of the defect, features of the pedicle and recipient vessels, complications, and additional surgeries were reviewed. Overall, 48 patients with 50 microsurgical flaps were identified. Thirty-one patients (65%) were men and 17 were (35%) women. The median age was 62 years. Among the 50 flaps, 26 (52%) were helix flaps, 20 (40%) were temporal artery posterior auricular skin flaps, and 4 (8%) were extended helix flaps. The nose was the most frequently reconstructed region (n=32, 64%), followed by the tongue (n=6, 12%), floor of the mouth (n=5%), lower eyelid (n=2%), and in one (2%) patient each, restoration of the upper eyelid, ear, larynx, esophagus, lower lip, and palate. The median follow-up was 74 months. Three flaps (6%) were lost, and the overall rate of complications was 46%. Surgical intervention was required in 7 (14%) cases. All cases healed with acceptable cosmesis. The ear is a valuable source of tissue for complex reconstructions of the face and intraoral regions. However, this technique is surgically demanding and should be reserved for selected cases.

Spinal deformity surgery in Scheuermann's kyphosis versus adolescent idiopathic scoliosis: meta-analysis of complications and clinical outcomes.

Surgical management of adolescent idiopathic scoliosis (AIS) and Scheuermann's kyphosis (SK) may be associated with several complications including extended length of stay and unplanned reoperations. Several studies have previously compared postoperative complications and functional outcomes for AIS and SK patients with mixed results. However, a meta-analysis compiling the literature on this topic is lacking. Following the PRISMA guidelines, PubMed, Cochrane, and Google Scholar (pages 1-20) were accessed and explored until April 2024. The extracted data consisted of complications (overall and surgical-site infections [SSI]), readmissions, reoperations, and Scoliosis Research Society-22 (SRS-22) score. Mean differences (MD) with 95% CI were used for continuous data and odds ratio (OR) was utilized for dichotomous data were calculated across studies. Seven retrospective articles were included in the meta-analysis, including 4866 patients, with 399 in the SK group and 4467 in the AIS group. SK patients were found to have statistically significantly higher rates of overall complications (OR = 5.41; 95% CI 3.69-7.93, p < .001), SSI (OR = 11.30; 95% CI 6.14-20.82, p < .001), readmissions (OR = 2.81; 95% CI 1.21-6.53, p = 0.02), and reoperations (OR = 7.40; 95% CI 4.76-11.51, p < .001) than AIS patients. However, they had similar SRS-22 scores postoperatively (MD = -0.06; 95% CI -0.16 to 0.04, p = 0.26) despite the SK group having lower SRS-22 scores preoperatively (MD = -0.30; 95% CI -0.42 to -0.18, p < .001). In this meta-analysis of studies comparing spinal deformity surgery outcomes in AIS and SK patients, SK was associated with more complications, readmissions, and reoperations. SK did have equivalent SRS-22 scores postoperatively to AIS patients, highlighting the benefit of surgical treatment despite higher complication rates. This data may help inform healthcare institutions, payors, and quality monitoring organizations who examine outcomes of pediatric and adult spinal deformity surgery.

The impact of diabetes and presurgical glycemic control on wound morbidity following open complex abdominal wall reconstruction: a single-center experience.

Numerous studies have identified diabetes mellites (DM) as a significant risk factor for postoperative wound morbidity, with suboptimal preoperative glycemic control (GC) posing an even greater risk. However, this data largely excludes ventral hernia patients. Our study examined the association between diabetes and preoperative GC and postoperative outcomes following open complex abdominal wall reconstruction (AWR). We identified diabetic patients who had undergone open, elective, clean VHR with transversus abdominis release (TAR) and permanent synthetic mesh at the Cleveland Clinic Foundation between January 2014 and December 2023. Their 30-day outcomes were compared to non-diabetic patients undergoing the same procedure. Subsequently, diabetic patients were categorized based on GC. status: "Optimal GC" (HbA1c < 7%), "Sub-optimal GC" (HbA1c 7-8.4%), and "Poor GC" (HbA1c ≥ 8.5%) and their outcomes were compared. 514 patients with DM who underwent clean elective TAR were identified, of which 431 met the inclusion criteria. GC was deemed optimal in 255 patients, sub-optimal in 128, and poor in 48 patients. Demographics were similar, except for anticoagulation treatment (p = 0.014). The entire study population exhibited significantly higher rates of wound morbidities and overall complications compared to non-diabetic patients. However, rates of surgical site infection (SSI), surgical site occurrence (SSO), SSO requiring procedural intervention (SSOPI), and reoperation did not differ significantly among the three cohorts of presurgical glycemic control (p = 0.82, p = 0.46, p = 0.51, p = 0.78), respectively. No occurrence of mesh removal was documented. In general, diabetes is a marker for increased wound morbidity and complications following complex abdominal wall reconstruction. However, we could not establish a hard cutoff to justify withholding surgery in symptomatic patients based on an arbitrary HbA1C level. We believe this data is important for shared decision-making when considering AWR for symptomatic ventral hernias in diabetic patients.

Complications of Percutaneous Nephrolithotomy: Experience From a Tertiary Care Center.

Introduction Renal stones are mineral concretions in the pelvicalyceal system. Their prevalence and recurrence are increasing globally. Percutaneous nephrolithotomy (PCNL) is a minimally invasive procedure for the removal of kidney stones. It is a safer technique offering the highest stone-free rates. However, a few complications may still occur. We aimed to evaluate our experiences of PCNL and classify the complications as intraoperative, early postoperative, and late postoperative events. We also aimed to find the predictors of complications in PCNL. Methods A single-center prospective observational study was conducted from June 2021 to October 2022 where all patients who were >18 years old with radiopaque calculus in the kidney and underwent PCNL were included. Statistical analysis was performed using the IBM Statistical Package for Social Sciences (SPSS) software (IBM SPSS Statistics, Armonk, NY). A p-value of <0.05 was considered significant. Results Two hundred one patients including 137 males and 64 females participated in the study. The overall rate of complications was 21.9%. Most of the patients (16.4%) experienced minor complications of Clavien grades 1 and 2. A Clavien grade of >3 included major complications and was noted in 5.5% of patients. No mortality was seen in the postoperative period. Female patients (p = 0.028), a stone burden of >3 cm (p = 0.003), stones in multiple calyces (p = 0.001), hydronephrosis (p = 0.001), history of recently treated urinary tract infection (UTI) (p < 0.001), longer operative time (>91 minutes) (p < 0.001), Guy's stone scores (GSS) III and IV (p < 0.001), complex renal calculi (staghorn) (p = 0.002), and multiple punctures (p = 0.001) were associated with higher complication rates after PCNL. Conclusion Most PCNL-related complications are minor and resolve with conservative or minimally invasive management. However, there are certain complications that can limit the surgical outcome. The overall complication rate in the current study is similar to that reported in the literature. Bleeding was the most common intraoperative complication, whereas hematuria was the most common early postoperative complication. A stone burden of >3 cm, hydronephrosis, longer operative time, higher GSS, and multiple punctures can all affect the rate of complications.

Risk factors contributing to morbidity associated with feeding tubes placed for esophageal cancer patients undergoing esophagectomy: a single-center retrospective study.

Perioperative nutritional optimization of patients undergoing esophagectomy for cancer is important as this population is prone to malnutrition associated with poor outcomes. Nutritional supplementation has been achieved via enteral nutrition through percutaneous feeding tubes such as gastrostomy (G-tubes) and surgical jejunostomy tubes (J-tubes). While they are often routinely placed for patients undergoing esophagectomy, these are associated with adverse events including infections, dislodgement, increased healthcare visits, among others. The morbidity associated with feeding tubes has not been well characterized. We aim to determine factors associated with adverse outcomes after feeding tube placement to guide appropriate use of feeding tubes in esophageal carcinoma patients. Patients who underwent esophagectomy for carcinoma and had at least one feeding tube placed from November, 2017 to October, 2021 at a single institution were retrospectively reviewed. Subgroup analyses were performed testing for relevant characteristics. Univariate and multivariate logistic regression analyses were conducted evaluating outcomes of interest. The primary outcome was the overall rate of tube-related complications. A total of 144 patients were included with 212 feeding tubes placed (75 G-tubes; 137 J-tubes). The rate of any adverse event related to feeding tubes was 39%. Of these, 11% were wound infections, 16% required procedural intervention, 11% visited the emergency department (ED), and 2.5% required admission due to feeding tube-related complications. Factors independently associated with adverse events included smoking history [odds ratio (OR), 2.80; 95% confidence interval (CI): 1.34-6.23], being female (OR, 2.98; 95% CI: 1.36-6.72), induction treatment (OR, 2.65; 95% CI: 1.14-6.55), and J-tubes (OR, 2.07; 95% CI: 1.09-4.03). Laparoscopically placed J-tubes were associated with increased unplanned admissions compared to those placed via laparotomy (9.4% vs. 0%, P=0.01). Though not statistically significant, there was a trend toward more complications in those who were high risk for malnutrition [body mass index (BMI) <18 kg/m2, weight loss >10%] and comorbid (Charlson Comorbidity Index 5-6). There is significant morbidity related to feeding tubes. The risk profile of these tubes for individual patients should be carefully weighed against the nutritional benefits prior to placement. Patients should be carefully counselled on the possible adverse events and care requirements.

Reconstructive Endovascular Treatment of Compensative-Flow-Related Posterior Circulation Aneurysms With Anterior Circulation Artery Occlusion.

The aim of this study was to delineate the reconstructive endovascular treatment and periprocedural management of compensative-flow-related posterior circulation aneurysms with anterior circulation artery occlusion. A total of 87 patients were enrolled in this retrospective double-center cohort study from May 2011 to November 2023. The baseline demographics, aneurysm characteristics, etiology and status of anterior circulation artery occlusion, treatment modalities, anesthesia management, complications, and clinical and angiographic outcomes of the patients were retrospectively analyzed in this study. Atherosclerosis and moyamoya disease were found to be the two main etiologies of anterior circulation artery occlusion. The mean American Society of Interventional and Therapeutic Neuroradiology/Society of Interventional Radiology scores were significantly higher in patients with posterior communicating artery trunk collaterals than those with posterior cerebral artery pial collaterals (P < .05). Treatment strategies included stent-assisted coiling (55, 63.2%), standard coiling (22, 25.3%), and flow diversion or flow diversion-assisted coiling (8, 9.2%). The overall rate of procedure-related ischemic and hemorrhagic complications (10.3%) was considered acceptable. The ischemic complication was significantly associated with a >20% drop in mean arterial pressure (P < .05) during the procedure. Finally, 86.2% of all patients showed a modified Rankin Scale score of 0 to 2 at the final clinical follow-up. Our study indicates that reconstructive endovascular treatments are feasible and effective strategies for compensative-flow-related posterior circulation aneurysms with anterior circulation artery occlusion. However, these treatments are associated with a risk of periprocedural ischemic complications, which can be reduced by collateral arterial assessment, appropriate periprocedural anesthesia management, and antiplatelet treatment.

Application of the Modified RUST Score in Tibial Bone Transport and Factors Associated with Docking Site Complications.

Reconstruction of segmental bone defects with bone transport is a well-established treatment. Mechanical complications at the docking site after frame removal are common. These complications include malunion, non-union, axial deviation and refracture. A simple tool to assess the healing of the docking site is currently lacking. The aim of this study is to evaluate the use of the modified RUST (mRUST) score in the setting of bone transport and to identify factors associated with an increased risk of docking site complications. This retrospective study was conducted at a single tertiary centre in South Africa, included 24 patients with a tibial bone defect treated with bone transport and a circular frame between 2014 and 2023. Demographic data, clinical and bone transport characteristics were recorded. Mechanical complications, such as fracture, non-union, any angulation >5°, shortening >5 mm, or any other complication requiring reoperation, were recorded. The mRUST was adapted as a ratio for the purpose of this study to overcome the common occurrence of cortices being obscured by the frame. The mRUST ratio was applied before and after frame removal for each patient by three appraisers. Comparison between the groups with and without complications was performed regarding bone transport characteristics, docking site configuration and mRUST ratio. The correlation of the score between radiographs before and after frame removal was assessed. The inter-rater reliability of the mRUST was analysed using Fleiss Kappa statistics for each cortex individually and the intraclass correlation coefficient (ICC) for the mRUST ratio. In this study, 20 men and 4 women with a median age of 26 years were included. The overall rate of mechanical complications after frame removal was 21.7%. Complications were all related to the docking site, with two angulations, two fractures and one non-union. Demographics, bone transport characteristics and mRUST ratio before and after frame removal were similar between the two groups. Regarding the configuration of the docking site, an angle of 45° or more between the bone surfaces was associated with the occurrence of mechanical complications (p < 0.001). The correlation of the mean mRUST ratio before and after frame removal showed a moderate relationship, with a Spearman correlation coefficient of 0.50 (p-value 0.13). The inter-rater reliability of the mRUST was "fair" (kappa 0.21-0.40) for the scoring of individual cortices, except for one score which was "slight" (kappa 0.00-0.20). The ICC of the mRUST ratio was 0.662 on radiographs with the frame, and 0.759 after frame removal. This study did not find the mRUST or mRUST ratio useful in assessing the healing of the docking site to decide on the best time to remove the frame. However, a notable finding was that the shape and orientation of the bone ends meeting at the docking site might well be relevant to decrease complication rates. If the angle between the bony surfaces is 45° or more, it may be associated with an increased risk of complications. It may be worthwhile considering reshaping these bone ends at the time of debridement or formal docking procedure to be more collinear, in order to reduce the potential for mechanical complications such as non-union, axial deviation or refracture at the docking site. Kummer A, Nieuwoudt L, Marais LC. Application of the Modified RUST Score in Tibial Bone Transport and Factors Associated with Docking Site Complications. Strategies Trauma Limb Reconstr 2024;19(2):73-81.

Involvement of veterinary students in the placement of intravenous catheters in adult horses in a teaching hospital does not significantly increase the rate of catheter complications.

To determine whether student involvement in intravenous catheter (IVC) placement increases the risk for complications and to report the rate and types of complications associated with IVCs in adult horses in a university teaching hospital. 455 IVCs placed in 394 horses. Data relevant to IVC placement and removal were retrieved from an electronic medical record search including records of adult horses from January 1 to December 31, 2022. Data retrieved from records included the role of the individual who prepared the site and placed the IVC, site of IVC placement, and type of IVC. The reason for removal of the IVC and presence or absence of detectable changes within the vein at the time of removal were documented in addition to clinical data, allowing for classification of each case. Data were reviewed retrospectively, and statistical analyses were performed using mixed-effects logistic regression models. Significance was set at P ≤ .05. The overall rate of complications was 15.6%, and the most common type of complication was swelling of the vein. Students were involved in 87 of 455 IVC site preparations and placements, and there were no statistically significant differences in complication rates between IVC sites prepared or placed by veterinary students versus nonstudent personnel. Veterinary personnel and clients may be hesitant to allow student involvement in IVC placement in horses, but these data suggest that student involvement does not increase the risk of IVC complications.

Early administration of ketorolac after cardiac surgery and postoperative complications: Analysis of the MIMIC-IV database.

Inflammation may contribute to postoperative cardiac complications and ketorolac, an anti-inflammatory agent inhibiting cyclooxygenase (COX), shows promise in enhancing cardiac graft patency by suppressing endothelial cell proliferation in animal studies. However, the safety of postoperative ketorolac use remains controversial. This study investigates the association between early ketorolac application and complications following cardiac surgery. Data from the Medical Information Mart for Intensive Care-IV (MIMIC-IV) database fueled this retrospective cohort study. The primary outcome is a composite of mortality, pulmonary insufficiency, severe acute kidney injury (AKI), hemorrhage or hematoma, infection, cardiogenic shock, and cerebrovascular infarction postcardiac surgery. Propensity score matching (PSM; 1:1 match, caliper 0.2), multivariate logistic regression, interaction stratification analysis, pairwise algorithmic, and overlap weight model analyses were employed. Following inclusion and exclusion criteria, 7143 patients who underwent valvular surgery or coronary artery bypass grafting (CABG) were included. PSM created a balanced cohort of 3270 individuals (1635 in the ketorolac group). The matched cohort exhibited an 8.1% overall rate of postoperative complications, with a lower composite outcome rate in patients receiving ketorolac within 48 h of surgery compared with those without (PSM, OR 0.70 [95% CI, 0.54-0.90]). Consistent associations were observed in total cohort analyses, sensitivity, and subgroup analyses. Early ketorolac use within 48 h post-CABG or valvular procedures in adults is independently associated with a lower incidence of composite postoperative adverse events. Prospective trials are warranted to assess causality.

Anterior Chamber Intraocular Lens Implantation Versus Four-Flanged Scleral Fixation Technique for Patients With Loss of Capsular Support During Routine Cataract Surgery.

To compare the outcomes of anterior chamber intraocular lens (AC-IOL) implantation versus the four-flanged scleral fixation technique in eyes with loss of capsular support during routine cataract surgery. This was a retrospective cohort study of all patients in whom an IOL was implanted either during or after short-term aphakia due to loss of capsular and sulcus support in a routine cataract surgery with at least 6 months of follow-up time between 2015 and 2023 in a tertiary medical center in Israel. Two different IOL implantation techniques were compared: the implantation of an angle-supported ACIOL and four-flanged scleral fixation. Main outcome measures included postoperative complications such as pseudophakic bullous keratopathy, loss of intraocular pressure control and glaucoma, IOL subluxation, and retinal detachment. Sixty-five eyes of 65 patients were included in the study, 33 eyes in the AC-IOL group and 32 eyes in the flange group. Follow-up time was 29.92 ± 20.02 months in the AC-IOL group and 20.17 ± 15.56 months in the flange group (P = .087). Pseudophakic bullous keratopathy was observed in 10 (30.3%) patients in the AC-IOL group and in 1 (3.1%) patient in the flange group (P = .04). This association remained significant using survival analysis (P = .006). In 4 (12.1%) patients in the AC-IOL group, a glaucoma filtering procedure was performed to control the intraocular pressure compared with none in the flange group (P = .042). In the setting of loss of capsular support during routine cataract surgery, four-flanged scleral fixation showed an overall lower rate of complications and significantly reduced rate of subsequent surgical interventions. [J Refract Surg. 2024;40(8):e520-e526.].

Transradial versus transfemoral access for treatment of HCC: a systematic review and meta analysis

Hepatic angiography procedures are essential in the treatment of hepatocellular carcinoma (HCC), with traditional transfemoral arterial (TFA) access being the traditional standard. Recently, transradial arterial (TRA) access has gained popularity, offering potential benefits. This study aims to conduct a systematic review and meta-analysis to compare TRA and TFA access in hepatic angiography oncologic procedures for HCC. The study investigates fluoroscopy time, radiation dose, patient preferences, and complications associated with each access method. A systematic review was performed using PRISMA guidelines, with 11 studies encompassing 2535 HCC procedures included. Statistical analysis was conducted using RevMan 5.4 software. Continuous outcomes were calculated as mean differences, and binary outcomes were measured as odds ratios. Patient preferences, procedural complications, and access site success rates were assessed. The meta-analysis revealed that there were no significant differences in fluoroscopy time, radiation dose, or contrast dose between TRA and TFA. Access failure rates were similar for both methods. However, the odds of adverse events, excluding access failure, were significantly higher for TFA, while the overall rate of complications was comparable. Patients strongly preferred TRA over TFA due to reduced hospital stay and post-procedure discomfort. This meta-analysis supports the use of TRA for hepatic angiography oncologic procedures for HCC with patient preferences in favor of TRA. Additional randomized clinical trials are encouraged to further evaluate the feasibility and benefits of both access sites.

Upfront versus deferred cytoreductive nephrectomy following targeted or immunotherapy: a population-based propensity score-matched analysis of perioperative complications.

To evaluate the incidence of postoperative complications after cytoreductive nephrectomy (CN) following first-line treatment for metastatic renal cell carcinoma (mRCC), and to compare it with postoperative complications of upfront CN. For this population-based retrospective study, the PearlDiver Mariner database (PearlDiver Technologies, Colorado Springs, CO), a database of insurance billing records was analyzed. Using relevant ICD-9/10 and CPT codes, patients diagnosed with mRCC between 2011 and 2021, who received first-line systemic molecular therapy (SMT), either tyrosine kinase inhibitors (TKI) or immune-checkpoint inhibitors (ICI), were identified. The selected population was stratified into two cohorts according to the timing of CN (deferred: after SMT vs. upfront: before SMT). Propensity-score matching (PSM) was performed as per baseline patients' characteristics to control for potential confounders between the two cohorts. The primary outcome was to compare 30-day postoperative complications rate between patients undergoing upfront vs. deferred CN. After PSM, 162 patients who received upfront CN were compared with 162 patients who underwent deferred CN. The overall rate of 30-day postoperative complications was statistically significantly higher in patients undergoing deferred CN (33.9%), compared to patients treated with upfront CN (21%, p < 0.01). In addition, the rate of both medical (26.5% vs. 14.2%, p < 0.01) and surgical (14.8 vs. 7.4%, p = 0.03) complication rate was statistically significantly higher in deferred vs. upfront CN. Multivariable logistic regression analysis revealed that none of the treatment regimens significantly predicted the occurrence of postoperative complications. Patients undergoing deferred CN experience a higher rates of overall, medical, and surgical 30-day postoperative complications compared to those receiving upfront surgery. Findings from this study should be interpreted within the limitations of this type of analysis.

The impact of adjuvant radiotherapy for cosmetic results after immediate breast reconstruction based on the tissue expander and permanent implant

Background. One of the causes of complications in breast cancer patients after immediate breast reconstruction (IBR) is postmastectomy radiation therapy (PMRT).Aim. Retrospective analysis of the results of IBR, and evaluating the effect of PMRT on the frequency and type of complications.Materials and methods. Between 2015 and 2021, 798 patients underwent IBR with tissue expander or implant in N.N. Petrov National Medical Research Center of Oncology, Ministry of Health of Russia. PMRT was performed in 375 patients (group 1). The remaining 423 patients did not receive PMRT (group 2). Complications, including reconstructive failure (RF), Baker grade III/IV capsular contracture (CC), were recorded and analyzed.Results. Finally, cosmetic result analyzed in 521 patients. In 281 patients of PMRT group (group 1) IBR with expander or implant were performed in 144 and 137 cases, respectively. In the 240 patients without PMRT (group 2), IBR with expander was performed in 81 patients, with implant – in 159 cases. Pooled analysis revealed that overall rate of complications in the PMRT group was 33.8 % (in 95 of 281 patients), in non-irradiation patients – 22.9 % (in 55 of 240 patients), p &lt;0.01. In group 1, RF were recorded in 67 (23.8 %) patients, in group 2 – in 44 (18.3 %) patients, p &gt;0.05. CC in group 1 were detected in 28 (10 %) patients, in group 2 in 11 (4.6 %) patients, p &lt;0.05. In patients with permanent implants RF were detected in 21 (14.6 %) of irradiation patients and in 22 (13.8 %) non-irradiation patients (p &gt;0.2). On the contrary, CC were mentioned in 22 (16.1 %) of irradiated patient and in 8 (5 %) patients that didn’t receive PMRT, p &lt;0.005. After reconstruction with expander RF were diagnosed in 46 (31.9 %) patients after PMRT and in 22 (27.2 %) non-irradiation patients, p &gt;0.2. CC were observed in 6 (4.2 %) patients from PMRT group and in 3 (3.7 %) patients treated without PMRT, p &gt;0.2.Conclusion. PMRT in patients after IBR with simultaneous installation of a permanent implant is characterized by a decrease in the incidence of RF, but an increase in the incidence of CC.

Microvascular Free-Flap Head and Neck Reconstruction: The Utility of the Modified Frailty Five-Item Index.

Microvascular free tissue transfer is a common tool for the reconstruction of oncologic head and neck defects. Adequate preoperative assessment can aid in appropriate risk stratification and peri-operative optimization. The modified five-item frailty index (mFI-5) is a validated risk-assessment scale; however, its utility in head and neck free-flap reconstruction is unknown when compared with other common risk factors. A retrospective, single-institution chart review (2017-2020) was performed. Patient demographics, defect and repair characteristics, pre- and peri-operative factors, and flap outcomes were recorded. A high mFI-5 score was defined as greater than 2. The total score, as well as other patient factors, was correlated to postoperative flap complications. A total of 214 patients were deemed appropriate for conclusion. The mean age was 63.9 ± 12.8 years. There were an even number of males (52.8%) and females (47.2%). A fifth of subjects (20.8%) underwent preoperative radiotherapy. There were 21 cases (9.8%) of complete flap loss. A total of 34 patients (29.4%) experienced any postoperative complication related to flap outcomes. An elevated mFI-5 was significantly associated with a higher overall rate of postoperative complications (39.7 vs. 29.4%, p < 0.019) and total flap loss (16.7% vs. 6.6%, p < 0.033). Preoperative radiation was found to be associated with an increased complication rate (p < 0.003). The mFI-5 score may be a potentially significant tool in the risk stratification of patients undergoing head and neck free-flap reconstruction as opposed to commonly utilized risk factors. Preoperative radiotherapy is significantly associated with postoperative complications. Appropriate preoperative assessment may help tailor patient care preoperatively.

Comparison of Patient Outcomes Between Leadless vs Transvenous Pacemakers Following Transcatheter Aortic Valve Replacement

BackgroundEvidence is limited regarding the effectiveness of leadless pacemaker implantation for conduction disturbance following transcatheter aortic valve replacement (TAVR). ObjectivesThis study sought to examine the national trends in the use of leadless pacemaker implantation following TAVR and compare its performance with transvenous pacemakers. MethodsMedicare fee-for-service beneficiaries aged ≥65 years who underwent leadless or transvenous pacemakers following TAVR between 2017 and 2020 were included. Outcomes included in-hospital overall complications as well as midterm (up to 2 years) all-cause death, heart failure hospitalization, infective endocarditis, and device-related complications. Propensity score overlap weighting analysis was used. ResultsA total of 10,338 patients (730 leadless vs 9,608 transvenous) were included. Between 2017 and 2020, there was a 3.5-fold increase in the proportion of leadless pacemakers implanted following TAVR. Leadless pacemaker recipients had more comorbidities, including atrial fibrillation and end-stage renal disease. After adjusting for potential confounders, patients with leadless pacemakers experienced a lower rate of in-hospital overall complications compared with patients who received transvenous pacemakers (7.2% vs 10.1%; P = 0.014). In the midterm, we found no significant differences in all-cause death (adjusted HR: 1.13; 95% CI: 0.96-1.32; P = 0.15), heart failure hospitalization (subdistribution HR: 0.89; 95% CI: 0.74-1.08; P = 0.24), or infective endocarditis (subdistribution HR: 0.98; 95% CI: 0.44-2.17; P = 0.95) between the 2 groups, but leadless pacemakers were associated with a lower risk of device-related complications (subdistribution HR: 0.37; 95% CI: 0.21-0.64; P < 0.001). ConclusionsLeadless pacemakers are increasingly being used for conduction disturbance following TAVR and were associated with a lower rate of in-hospital complications and midterm device-related complications compared to transvenous pacemakers without a difference in midterm mortality.