Metabolic and the Surgical Stress Response Considerations to Improve Postoperative Recovery

Efficacy and safety of massage for postoperative stress in colorectal cancer patients: a randomized, controlled, three-arm trial

Purpose

The purpose of this study was to investigate the effect of rhythmic embrocation (RE), a massage technique, on postoperative stress levels (measured by heart rate variability) in colorectal cancer surgery patients compared to empathic conversation.

Methods

The study included 68 patients who were randomized into three groups: one received RE from professionals, another from students, and the third received empathic conversations. Stress was quantified using heart rate variability before and after the interventions.

Results

The standard deviation of the heartbeat intervals (SDNN) increased more in the professional RE group 9.12 ms (IQR 3.59-12.3 ms) than in the other groups: student RE group 5.68 ms (-0.66-7.5 ms), empathic conversation group 6.64 ms (-1.49-7.38 ms); hence stress decreased more in the professional RE group, although not statistically significant (p= 0.21). Other factors like sleep quality, nausea, pain, and mood did not differ significantly between the groups. No complications were associated with the interventions.

Conclusion

RE was safe and a statistically significant superiority of RE on postoperative stress compared to empathic conversations could not be found. Due to high inter- and intraindividual variability a clear pattern of response of the secondary outcomes to RE in comparison to empathic conversations could not be found. The study was limited by a small sample size, high patient variability, effective co-interventions for sleep, pain and nausea, and by an imbalance between groups. The study indicates that future research on RE should focus on a more narrowly defined patient population, increase the sample size, and select comparison groups that are clearly distinct from each other as well as a clinical context with fewer confounding factors. Furthermore, the patient's preferences and previous experiences with massage therapy should be considered.

Clinical trial registration

German Clinical Trials Register (www.drks.de), identifier DRKS00023407.

Quantifying fluid retention following modern pain management in TKA: an observational study

BACKGROUND

Body fluid retention after major surgeries, including total knee arthroplasty (TKA), is well documented in the literature. Currently, multimodal pain control protocols consisting of several medications together with early discharge protocol may magnify this adverse event after a patient's discharge. However, no study has focused on the quantitative and chronological changes in body fluids following modern pain management protocols for TKA. The aim of this study was to investigate the perioperative total body water (TBW) change in patient undergoing TKA.

PATIENTS AND METHODS

A consecutive series of 85 patients undergoing primary unilateral TKA, with uniform hospital admission, multimodal pain control, and rehabilitation protocol, had five consecutive multifrequency bioelectrical impedance analysis (BIA) scans; baseline, postoperative day 1 (POD 1), postoperative day 3 (POD 3), 2 weeks, and 6 weeks. Changes in TBW, body weight, corticosteroid-fluid retention dose-response relationship, and complications were evaluated.

RESULTS

Seventy patients completed all five scans and follow-ups. Female patients were dominant, with a mean age of 69.5 years. There were no perioperative complications. At 24 h, the mean total fluid input and output were 3695.14 mL and 1983.43 mL, respectively, with 1711.71 mL increments and a mean accumulative dosage of dexamethasone of 15.14 mg. The mean TBW increased by 2.61 L on POD 1 and continued to peak at 3.2 L on POD 3, then gradually decreased at 2 weeks and reached the baseline level at 6 weeks postoperatively. Similarly, the mean body weight increased to 2.8 kg on POD 1, reached the maximum point at 3.42 kg on POD 3, and returned to baseline at 6 weeks.

CONCLUSIONS

Fluid retention following multimodal pain control in TKA increased from POD 1, peaked on POD 3, and gradually returned to the baseline at 6 weeks. With early discharge protocol, patient education regarding fluid retention after discharge should be considered.

Embedding Multimodal Rehabilitation Within Routine Cancer Care in Sheffield-The Active Together Service Evaluation Protocol

BACKGROUND

Approximately 3 million people in the United Kingdom are currently living with or beyond cancer. People undergoing treatment for cancer are at risk of complications following treatment. Increasing evidence supports the role of rehabilitation (including prehabilitation) in enhancing psychological and physical well-being in patients with cancer and improving outcomes. Active Together is an evidence-based, multimodal rehabilitation service for patients with cancer, providing support to help patients prepare for and recover from treatment. This paper presents the evaluation protocol for the Active Together service, aiming to determine its impact on patient-reported outcomes and clinical endpoints, as well as understand processes and mechanisms that influence its delivery and outcomes.

METHODS

This evaluation comprises an outcome and process evaluation, with service implementation data integrated into the analysis of outcome measures. The outcome evaluation will assess changes in outcomes of patients that attend the service and compare health care resource use against historical data. The process evaluation will use performance indicators, semistructured interviews, and focus groups to explore mechanisms of action and contextual factors influencing delivery and outcomes. Integrating psychological change mechanisms with outcome data might help to clarify complex causal pathways within the service.

CONCLUSIONS

Evidence to support the role of multimodal rehabilitation before, during, and after cancer treatment is increasing. The translation of that evidence into practice is less advanced. Findings from this evaluation will contribute to our understanding of the real-world impact of cancer rehabilitation and strengthen the case for widespread adoption of rehabilitation into routine care for people with cancer.

Comprehensive review of perioperative factors influencing ferroptosis

The perioperative period encompasses all phases of patient care from the decision to perform surgery until full recovery. Ferroptosis, a newly identified type of regulated cell death, influences a wide array of diseases, including those affecting the prognosis and regression of surgical patients, such as ischemia-reperfusion injury and perioperative cognitive dysfunction. This review systematically examines perioperative factors impacting ferroptosis such as surgical trauma-induced stress, tissue hypoxia, anesthetics, hypothermia, and blood transfusion. By analyzing their intrinsic relationships, we aim to improve intraoperative management, enhance perioperative safety, prevent complications, and support high-quality postoperative recovery, ultimately improving patient outcomes.

Effect of rigorous fluid management using monitoring of ECW ratio by bioelectrical impedance analysis in critically ill postoperative patients: A prospective, single-blind, randomized controlled study

BACKGROUND & AIMS

Precise assessment of postoperative volume status is important to administrate optimal fluid management. Bioelectrical impedance analysis (BIA) which measures the body composition using electric character. Extracellular water (ECW) ratio by BIA represented as the ratio of ECW to total body water (TBW) and is known to reflect the hydration status. Based on this, we aimed to determine whether aggressive fluid control using ECW ratio could improve clinical outcomes through a single blind, randomized controlled trial.

METHODS

From November 2021 to December 2022, intensive care unit (ICU) patients admitted after surgery were randomly assigned to an intervention group or a control group whether postoperative fluid management was controlled via BIA. Among patients in the intervention group, dehydrated patients received a bolus infusion with crystalloid fluid whereas diuretics were administrated to overhydrated patients until the value of ECW ratio fell within its normal setting range (0.390-0.406). Contrarily, BIA was performed once a day for the control group. Patients in the control group received traditional fluid treatment regardless of BIA results. Primary outcome was in-hospital mortality in two groups. The secondary outcomes were postoperative morbidities, 28-day mortality.

RESULTS

77 patients of the intervention group and 90 patients of the control group were finally analyzed. The in-hospital mortality (0 in intervention, 4.4% in control, p = 0.125) and 28-day mortality (1.3% in intervention, 14.4% in control, p = 0.002) showed lower incidence in the intervention group than in the control group. In multivariate analysis, the overhydrated status whose ECW ratio exceeding 0.406 [odds ratio (OR): 2.731, 95% confidence interval (CI): 1.001-7.663, p = 0.049] and high capillary leak index (CLI) value at ICU admission (OR: 1.024, 95% CI: 1.008-1.039, p = 0.002) were risk factors of postoperative morbidities. Regarding the 28-day mortality, high CLI value (OR: 1.025, 95% CI: 1.002-1.050, p = 0.037) and traditional strategy without BIA monitoring (OR: 9.903, 95% CI: 1.095-89.566, p = 0.041) were the significant predisposing factors.

CONCLUSION

Our results revealed the rigorous fluid treatment with volume control based on ECW ratio by BIA failed to achieve significant improvement in in-hospital mortality, but it could reduce 28-day mortality of ICU patients. Monitoring of ECW ratio may help establish optimal fluid treatment strategies for postoperative ICU patients who are susceptible to fluid imbalances with fluid overload.

TRIAL REGISTRATION

ClinicalTrials.gov, NCT06097923, retrospectively registered on October 16, 2023, https://clinicaltrials.gov/study/NCT06097923?term=NCT06097923&rank=1.

The impact of frailty on clinical outcomes of older patients undergoing enhanced recovery after lumbar fusion surgery: a prospective cohort study

BACKGROUND

Frailty is recognized as a surrogate for physiological age and has been established as a valid and independent predictor of postoperative morbidity, mortality, and complications. Enhanced recovery after surgery (ERAS) can enhance surgical safety by minimizing stress responses in frail patients, enabling surgeons to discharge patients earlier. However, the question of whether and to what extent the frailty impacts the post-ERAS outcomes in older patients remains.

MATERIALS AND METHODS

An evidence-based ERAS program was implemented in our center from January 2019. This is a prospective cohort study of patients aged ≥75 years who underwent open transforaminal lumbar interbody fusion (TLIF) for degenerative spine disease from April 2019 to October 2021. Frailty was assessed with the Fried frailty scale (FP scale), and patients were categorized as non/prefrail (FP 0-2) or frail (FP ≥ 3). The preoperative variables, operative data, postoperative outcomes, and follow-up information were compared between the two groups. Univariate and multivariate logistic regression analyses were used to identify risk factors for 90-day major complications and prolonged length of hospital stay after surgery.

RESULTS

A total of 245 patients (age of 79.8±3.4 year) who had a preoperative FP score recorded and underwent scheduled TLIF surgery were included in the final analysis. Comparisons between nonfrail and prefrail/frail patients revealed no significant difference in age, sex, and surgery-related variables. Even after adjusting for multiple comparisons, the association between Fried frailty and ADL-dependency, IADL-dependency, and malnutrition remained significant. Preoperative frailty was associated with increased rates of postoperative adverse events. A higher CCI grade was an independent predictor for 90-day major complications, while Fried frailty and MNA-SF scores <12 were predictive of poor postoperative recovery.

CONCLUSION

Frail older patients had more adverse post-ERAS outcomes after TLIF compared to non/prefrail older patients. Continued research and multidisciplinary collaboration will be essential to refine and optimize protocols for surgical care in frail older adults.

The relationship between spiritual well-being and surgical fear in elderly patients with gonarthrosis

BACKGROUND

Gonarthrosis is a chronic degenerative joint disease characterised by prolonged pain, affecting ~10% of men and 18% of women aged 60 and older worldwide. Surgical interventions are commonly employed in patients with gonarthrosis to minimise disability, alleviate pain, and improve overall quality of life. However, surgical treatment remains a feared experience. This study was conducted to identify the levels of spiritual well-being and surgical anxiety in elderly patients diagnosed with gonarthrosis who are scheduled for surgical intervention. The aim was to examine the relationship between these factors and identify influencing elements.

METHODS

This descriptive and correlational study was conducted between September 2022 and June 2023 in the orthopaedics and traumatology service of a state hospital, involving 105 patients aged 65 and above with gonarthrosis and admitted for treatment. Data were collected using the Personal Information Form, Surgical Fear Questionnaire, and Three-Factor Spiritual Well-being Scale. Data were analyzed with descriptive statistical tests, Mann-Whitney U-test, Kruskal-Wallis test, and Spearman correlation analysis.

RESULTS

The short-term surgical fear of patients was 11.69 ± 7.55, the long-term surgical fear was 10.70 ± 9.53, and the total surgical fear was 22.40 ± 14.69 points, indicating a low level. Single and inexperienced elderly patients had higher levels of surgical fear (P < 0.05). The spiritual well-being levels of elderly patients (transcendence, 59.65 ± 12.20; harmony with nature, 29.10 ± 4.65; anomy, 26.34 ± 5.28; total score, 115.10 ± 17.83) were high. The spiritual well-being levels of elderly individuals whose income matched their expenses were higher (P < 0.05). There was a statistically significant negative relationship between the level of anomy in elderly patients with gonarthrosis and surgical fear (P < 0.05).

CONCLUSIONS

In elderly patients with planned surgical interventions for gonarthrosis. It was determined that the levels of surgical fear were low, and the levels of spiritual well-being were high. The study identified that the level of anomy had an impact on surgical fear. It is recommended that healthcare professionals be aware of the influence of spiritual well-being on surgical fear and provide spiritual support to elderly patients.

Changes in blood catecholamines during induction of general anesthesia in patients with post-induction hypotension undergoing laparoscopic cholecystectomy: A single-center prospective cohort study

BACKGROUND

Post-induction hypotension (PIH) often occurs during general anesthesia induction. This study aimed to investigate blood catecholamine levels during induction of general anesthesia in patients with PIH undergoing laparoscopic cholecystectomy.

METHODS

This prospective study included 557 adult patients who underwent laparoscopic cholecystectomy under general anesthesia. PIH was defined as a greater than 20% decrease in systolic blood pressure from the pre-induction value, a systolic arterial pressure of less than 90 mmHg, or both. Plasma concentrations of epinephrine and norepinephrine during the induction of general anesthesia were determined using enzyme-linked immunosorbent assay. Multivariate logistic regression analysis evaluated the association between the clinical factors and PIH.

RESULTS

Of the 557 patients, 390 had PIH, and the remaining 167 were allocated to the non-PIH group. Changes in blood adrenaline, noradrenaline levels, or both were more pronounced in the PIH than in the non-PIH group (p<0.05). Age, body mass index, a history of hypertension, preoperative systolic blood pressure, and propofol or sufentanil dose were independent predictors of PIH.

CONCLUSION

The changes of blood catecholamines in patients with more stable hemodynamics during the induction of general anesthesia are smaller than that in patients with post-induction hypotension.

TRIAL REGISTRATION

ChiCTR2200055549, 12/01/2022.

International consensus is needed on a core outcome set to advance the evidence of best practice in cancer prehabilitation services and research

Prehabilitation aims to optimise patients' physical and psychological status before treatment. The types of outcomes measured to assess the impact of prehabilitation interventions vary across clinical research and service evaluation, limiting the ability to compare between studies and services and to pool data. An international workshop involving academic and clinical experts in cancer prehabilitation was convened in May 2022 at Sheffield Hallam University's Advanced Wellbeing Research Centre, England. The workshop substantiated calls for a core outcome set to advance knowledge and understanding of best practice in cancer prehabilitation and to develop national and international databases to assess outcomes at a population level.

Immunotherapeutic Properties of Dexmedetomidine on Pain Management and Cardiovascular Function in Videolaparoscopic Cholecystectomies: A Randomized, Two-Arm, Double-Blinded, Placebo-Controlled Trial

BACKGROUND

Laparoscopy represented one of the most innovative surgical techniques approached in the surgery field. Dexmedetomidine association with general anesthesia promotes the response control to trauma by altering the neuroinflammatory reflex, provides better clinical outcomes in the postoperative period and reduces the excessive use of drugs with risk for addiction. This trial aims to evaluate the potential drug treatment of dexmedetomidine on organic function, with the targets in neuroinflammation, perioperative pain control and blood pressure measurements in a medium-sized surgical model.

METHODS

Fifty-two patients were randomized in two groups: Sevoflurane and Dexmedetomidine - A (dexmedetomidine infusion [1 μg/kg loading, .2-.5 μg/kg/h thereafter]) vs Sevoflurane and Saline .9% - B. Three blood samples were collected at three times: before surgery, 4 to 6 hours after surgery and 24 hours postoperatively. The primary outcome was inflammatory and endocrine mediators dosage analisys. Finally, we evaluated pain and opioid use as secondary outcomes, also the hemodynamic values.

RESULTS

In Dexmedetomidine group A, a reduction of Interleukin 6 was found during 4-6 hours after surgery. A reduction of IL-10 was noted in the measurement of its values 24 hours after the procedure, with statistical significance. Also, systolic and diastolic blood pressure, as well heart rate were attenuated, and there was a lower incidence of pain and opioid consumption in the first postoperative hour (P < .0001) in the anesthetic recovery room.

CONCLUSIONS

Dexmedetomidine provided anti-inflammatory activity, sympatholytic effect and analgesia with cardiovascular safety. It reinforces the therapeutic nature of highly selective α2-adrenergic agonists when combined within anesthetic interventions.

Quality of fluid balance charting and interventions to improve it: a systematic review

INTRODUCTION

Fluid balance monitoring is pivotal to patients' health. Thus, fluid balance charting is an essential part of clinical nursing documentation. This systematic review aimed to investigate and describe the quality of fluid balance monitoring in medical, surgical and intensive care units, with an emphasis on the completeness of charting data, calculation errors and accuracy, and to evaluate methods used to improve fluid balance charting.

MATERIALS AND METHODS

Quantitative studies involving adult patients and reporting data on fluid balance monitoring were included in the review. We searched MEDLINE, Embase, CINAHL and the Cochrane Library. The risk of bias in the included studies was assessed using tools developed by the Joanna Briggs Institute.

RESULTS

We included a total of 23 studies, which involved 6649 participants. The studies were quasi-experimental, cohort or prevalence studies, and every third study was of low quality. Definitions of 'completeness' varied, as well as patient categories and time of evaluation. Eighteen studies reported the prevalence of patients with complete fluid balance charts; of those, 10 reported that not more than 50% of fluid balance charts were complete. Studies addressing calculation errors found them in 25%-35% of charts, including omissions of, for example, intravenous medications. The reported interventions consisted of various components such as policies, education, equipment, visual aids, surveillance and dissemination of results. Among studies evaluating interventions, only 38% (5 of 13) achieved compliance with at least 75% of complete fluid balance charts. Due to the heterogeneity of the studies, a meta-analysis was not possible.

CONCLUSION

The quality of fluid balance charting is inadequate in most studies, and calculation errors influence quality. Interventions included several components, and the impact on the completion of fluid balance charts varied.

Identification of potential hub genes linked to immune and metabolic alterations in postoperative systemic inflammatory dysregulation

Background

Postoperative systemic inflammatory dysregulation (PSID) is characterised by strongly interlinked immune and metabolic abnormalities. However, the hub genes responsible for the interconnections between these two systemic alterations remain to be identified.

Methods

We analysed differentially expressed genes (DEGs) of individual peripheral blood nucleated cells in patients with PSID (n = 21, CRP > 250 mg/L) and control patients (n = 25, CRP < 75 mg/L) following major abdominal surgery, along with their biological functions. Correlation analyses were conducted to explore the interconnections of immune-related DEGs (irDEGs) and metabolism-related DEGs (mrDEGs). Two methods were used to screen hub genes for irDEGs and mrDEGs: we screened for hub genes among DEGs via 12 algorithms using CytoHubba in Cytoscape, and also screened for hub immune-related and metabolic-related genes using weighted gene co-expression network analysis. The hub genes selected were involved in the interaction between changes in immunity and metabolism in PSID. Finally, we validated our results in mice with PSID to confirm the findings.

Results

We identified 512 upregulated and 254 downregulated DEGs in patients with PSID compared with controls. Gene enrichment analysis revealed that DEGs were significantly associated with immune- and metabolism-related biological processes and pathways. Correlation analyses revealed a close association between irDEGs and mrDEGs. Fourteen unique hub genes were identified via 12 screening algorithms using CytoHubba in Cytoscape and via weighted gene co-expression network analysis. Among these, CD28, CD40LG, MAPK14, and S100A12 were identified as hub genes among both immune- and metabolism-related genes; these genes play a critical role in the interaction between alterations in immunity and metabolism in PSID. The experimental results also showed that the expression of these genes was significantly altered in PSID mice.

Conclusion

This study identified hub genes associated with immune and metabolic alterations in patients with PSID and hub genes that link these alterations. These findings provide novel insights into the mechanisms underlying immune and metabolic interactions and new targets for clinical treatment can be proposed on this basis.

Remote Hemorrhagic Complications of Glioma Surgery: Systematic Review of the Literature and Report of a Case of Distant Wounded Glioma Syndrome, a Rare Neurosurgical Complication

BACKGROUND

Hemorrhage following glioma resection usually happens in tissues that were surgically manipulated. Remote bleeding is a rare and serious complication that is still poorly understood. Distant wounded glioma syndrome is a special type of this complication, where bleeding happens in a glioma lesion that was not surgically manipulated.

METHODS

A systematic review was conducted on the MEDLINE and Scielo databases. A new case of distant wounded glioma syndrome was reported and added to the results.

RESULTS

We identified 501 articles using the search strategy and screened them. We reviewed the full text of 58 articles, of which 4 met the eligibility criteria. Including our new case, only 5 articles reported hemorrhage in locations remote from the resection site, with a total of 6 patients.

CONCLUSIONS

Remote bleeding, including distant wounded glioma syndrome, is a rare complication that should be considered in cases of postoperative deterioration, especially in cases of symptoms not congruent with the operated site.

Major open abdominal surgery is associated with increased levels of endothelial damage and interleukin-6

OBJECTIVE

To examine changes in biomarkers of endothelial glycocalyx shedding, endothelial damage, and surgical stress following major open abdominal surgery and the correlation to postoperative morbidity.

INTRODUCTION

Major abdominal surgery is associated with high levels of postoperative morbidity. Two possible reasons are the surgical stress response and the impairment of the glycocalyx and endothelial cells. Further, the degree of these responses may correlate with postoperative morbidity and complications.

METHODS

A secondary data analysis of prospectively collected data from two cohorts of patients undergoing open liver surgery, gastrectomy, esophagectomy, or Whipple procedure (n = 112). Hemodynamics and blood samples were collected at predefined timestamps and analyzed for biomarkers of glycocalyx shedding (Syndecan-1), endothelial activation (sVEGFR1), endothelial damage (sThrombomodulin (sTM)), and surgical stress (IL6).

RESULTS

Major abdominal surgery led to increased levels of IL6 (0 to 85 pg/mL), Syndecan-1 (17.2 to 46.4 ng/mL), and sVEGFR1 (382.8 to 526.5 pg/mL), peaking at the end of the surgery. In contrast, sTM, did not increase during surgery, but increased significantly following surgery (5.9 to 6.9 ng/mL), peaking at 18 h following the end of surgery. Patients characterized with high postoperative morbidity had higher levels of IL6 (132 vs. 78 pg/mL, p = 0.007) and sVEGFR1 (563.1 vs. 509.4 pg/mL, p = 0.045) at the end of the surgery, and of sTM (8.2 vs. 6.4 ng/mL, p = 0.038) 18 h following surgery.

CONCLUSION

Major abdominal surgery leads to significantly increased levels of biomarkers of endothelial glycocalyx shedding, endothelial damage, and surgical stress, with the highest levels seen in patients developing high postoperative morbidity.

Effects of Dexmedetomidine on Immunomodulation and Pain Control in Videolaparoscopic Cholecystectomies: A Randomized, Two-Arm, Double-Blinded, Placebo-Controlled Trial

AIM

Digital and robotic technology applications in laparoscopic surgery have revolutionized routine cholecystectomy. Insufflation of the peritoneal space is vital for its safety but comes at the cost of ischemia-reperfusion-induced intraabdominal organ compromise before the return of physiologic functions. Dexmedetomidine in general anesthesia promotes controlling the response to trauma by altering the neuroinflammatory reflex. This strategy may improve clinical outcomes in the postoperative period by reducing postoperative narcotic use and lowering the risk of subsequent addiction. In this study, the authors aimed to evaluate dexmedetomidine's therapeutic and immunomodulatory potential on perioperative organ function.

METHODS

Fifty-two patients were randomized 1:1: group A-sevoflurane and dexmedetomidine (dexmedetomidine infusion [1 µg/kg loading, 0.2-0.5 µg/kg/h maintenance dose]), and group B-sevoflurane with saline 0.9% infusion as a placebo control. Three blood samples were collected: preoperatively (T0 h), 4-6 h after surgery (T4-6 h), and 24 h postoperatively (T24 h). The primary outcome was the level analysis of inflammatory and endocrine mediators. Secondary outcome measures were the time to return to normal preoperative hemodynamic parameters, spontaneous ventilation, and postoperative narcotic requirements to control surgical pain.

RESULTS

A reduction of Interleukin 6 was found at 4-6 h after surgery in group A with a mean of 54.76 (27.15-82.37; CI 95%) vs. 97.43 (53.63-141.22); p = 0.0425) in group B patients. Systolic and diastolic blood pressure and heart rate were lower in group A patients, who also had a statistically significantly lower opioid consumption in the first postoperative hour when compared to group B patients (p < 0.0001). We noticed a similar return to spontaneous ventilation pattern in both groups.

CONCLUSIONS

Dexmedetomidine decreased interleukin-6 4-6 h after surgery, likely by providing a sympatholytic effect. It provides good perioperative analgesia without respiratory depression. Implementing dexmedetomidine during laparoscopic cholecystectomy has a good safety profile and may lower healthcare expenditure due to faster postoperative recovery.

Effect of Quadratus Lumborum Block on Pain and Stress Response after Video Laparoscopic Surgeries: A Randomized Clinical Trial

BACKGROUND

There are many surgical and anesthetic factors that affect pain and the endocrine-metabolic response to trauma. The ability of anesthetic agents and neuronal blockade to modify the response to surgical trauma has been widely studied in the last few years.

OBJECTIVE

To evaluate if the anterior quadratus lumborum block contributes to improved surgical recovery, using as parameters analgesia, pulmonary function and neuroendocrine response to trauma.

METHODS

We carried out a prospective, randomized, controlled, and blinded study, in which 51 patients scheduled for laparoscopic cholecystectomy. Patients were randomly selected and assigned to 2 groups. The control group received balanced general anesthesia and venous analgesia, and the intervention group was treated under general, venous analgesia and anterior quadratus lumborum block. The parameters evaluated were: demographic data, postoperative pain, respiratory muscle pressure and inflammatory response to surgical stress with the plasma dosage of IL-6 (Interleukin 6), CRP (C-Reactive protein) and cortisol.

RESULTS

Anterior quadratus lumborum block induced the slowing of IL-6 cytokine production and a decrease in cortisol release. This effect was accompanied by the significant reduction of postoperative pain scores.

CONCLUSION

Anterior quadratus lumborum block is an important strategy for analgesia in abdominal laparoscopic surgery and contributes to reducing the inflammatory response to surgical trauma with an early return of preoperative baseline physiological functions.

Factors associated with early postoperative exercise tolerance after living-donor liver transplantation

BACKGROUND

Physical dysfunction, including exercise intolerance, is a major factor for delayed societal reintegration for patients who underwent living-donor liver transplantation (LDLT). However, what may contribute to early postoperative physical function is not well known. The purpose of this study is to elucidate the perioperative factors affecting early posttransplant exercise intolerance.

METHODS

103 consecutive patients who underwent LDLT were enrolled, and 68 patients were retrospectively analyzed. We examined the relationship between postoperative exercise tolerance evaluated by a 6-minute walking distance (6MWD) at discharge after surgery and demographic data, surgical information, preoperative physical function, clinical course, and the postoperative decline in physical function with univariate and multivariate analyses.

RESULTS

Almost all patients were discharged within 3 months after surgery. The postoperative 6MWD was 408 ± 94 m (68 [61-84]% of the predicted value), and patients who had a low %6MWD at discharge had significantly lower preoperative physical function than patients who had a high %6MWD at discharge (grip strength: 29.8 ± 8.9 kgf vs. 23.0 ± 8.8 kgf, P < .01, knee extensor strength: 138.9 ± 59.4 Nm vs. 95.2 ± 42.1 Nm, P < .01). Multivariate analysis revealed that preoperative knee extensor strength (standardized β = 0.35, P < .01) and first postoperative walking day (standardized β = -0.22, P = .04) were independently associated with the postoperative %6MWD.

CONCLUSION

These results suggest that maintaining preoperative muscle strength and allowing for early postoperative mobilization might help to enhance the recovery of physical function and facilitate the patient's social reintegration after LDLT.

Intraoperative Assessment of Surgical Stress Response Using Nociception Monitor under General Anesthesia and Postoperative Complications: A Narrative Review

We present a narrative review focusing on the new role of nociception monitor in intraoperative anesthetic management. Higher invasiveness of surgery elicits a higher degree of surgical stress responses including neuroendocrine-metabolic and inflammatory-immune responses, which are associated with the occurrence of major postoperative complications. Conversely, anesthetic management mitigates these responses. Furthermore, improper attenuation of nociceptive input and related autonomic effects may induce increased stress response that may adversely influence outcome even in minimally invasive surgeries. The original role of nociception monitor, which is to assess a balance between nociception caused by surgical trauma and anti-nociception due to anesthesia, may allow an assessment of surgical stress response. The goal of this review is to inform healthcare professionals providing anesthetic management that nociception monitors may provide intraoperative data associated with surgical stress responses, and to inspire new research into the effects of nociception monitor-guided anesthesia on postoperative complications.

Endothelial Damage and Muscle Wasting in Cardiac Surgery Patients

This is a post-hoc analysis to assess the effect of anesthesia, surgical trauma, and extracorporeal circuit on endothelial integrity, microvascular permeability, and extracellular fluid balance, as well as on skeletal muscle catabolism, in patients undergoing elective cardiac surgery. We included 127 well-nourished patients undergoing "on-pump" elective cardiac surgery. One day prior to surgery (D0) and again on postoperative day 7 (POD7), body mass index, body composition assessment, hand-grip strength (HGS), and mid-upper arm muscle circumference (MAMC) were measured. Patients were assigned to early recovery (ER) and late recovery (LR) groups, depending on the duration of ICU stay (cut-off 48 hours). The magnitude of change (Δ) in all parameters studied was assessed in ER versus LR groups, regarding (i) epithelial tissue dysfunction (Δ-Extra-Cellular Water percentage (Δ-ECW%), Δ-Phase Angle (Δ-PhA)), (ii) skeletal muscle mass catabolism (Δ-Skeletal muscle mass reduction%, Δ-Hand Grip Strength (Δ-HGS) and Δ-Mid Upper-Arm Muscle Circumference (Δ-MAMC)). Baseline measurements were similar in both groups. A significant difference was observed in all Δ-parameters studied (Δ-ECW%, Δ-PhA and muscle catabolism, Δ-HGS, Δ-MAMC), the worse results being correlated to the LR group. The results raise the issue that patients with early recovery may silently have pathological conditions, continuing even on the day of discharge - further research should be planned.

Psychometric properties of the Chinese version of the preoperative assessment of readiness tool among surgical patients

Background

The evaluation of the surgical readiness of patients plays an important role in clinical care. Preoperative readiness assessment is needed to identify the inadequacy among surgical patients, which provides guide for interventions to improve patients’ preoperative readiness. However, there is a paucity of high-level, quality tool that evaluate surgical readiness of patients in China. The purpose of this study is to translate the Preoperative Assessment of Readiness Tool (PART) into Chinese and determine the reliability and validity of the Chinese version in the population of surgical patients.

Methods

Using a standard translation-backward method, the original English version of PART was translated into Chinese. A convenient sampling of 210 surgical patients was recruited from 6 hospitals in Zhejiang Province to test the psychometric properties of this scale including internal consistency, split-half reliability, content validity, structure validity, and floor/ceiling effect.

Results

A total of 194 patients (92%) completed questionnaires. The Chinese version of PART achieved Cronbach’s alphas 0.948 and McDonald’s omega coefficient 0.947, respectively, for the full scale. The estimated odd-even split-half reliability was 0.959. The scale-level content validity index was 0.867, and the items content validity index ranged from 0.83 to 1.0.The output of confirmatory factor analysis (CFA) revealed a two-factor model (χ2 = 510.96; df = 86; p &lt; 0.001; root mean square error approximation = 0.08) with no floor/ceiling effect.

Conclusion

The Chinese version of PART demonstrated acceptable reliability and validity among surgical patients. It can be used to evaluate patients’ preoperative preparation and help health professionals provide proper preoperative support.

Improving safety and efficacy with pharmacist medication reconciliation in orthopedic joint surgery within an enhanced recovery after surgery program

PURPOSE

To investigate the impact of medication reconciliation (MR), through avoidance of unintentional medication discrepancies, on enhanced recovery after surgery programs designed for older patients undergoing orthopedic joint surgery.  METHOD: Our study was divided into two phases. In the first phase, MR was performed for elderly patients undergoing orthopedic joint surgery. Types of medication discrepancies and their potential risks were analyzed. In the second phase, a controlled study was conducted in a subgroup of patients diagnosed with periprosthetic joint infection (PJI) and who were scheduled for two-stage revision. The primary goal was to investigate the impact of MR on length of stay for the first stage. The secondary goal was to investigate the time between the first admission and the reimplantation of a new prosthesis, the number of readmissions within 30 days, hospitalization cost.

RESULTS

A total of 506 medication discrepancies were identified in the included 260 patients. Intolerance had the highest incidence (n = 131, 25.7%). The Bayliff tool showed that 71.9% were assessed as level 2 risk, and 10.3% had a life-threatening risk. For patients with PJI, MR reduced the average length of stay in the first stage (16.3 days vs. 20.7 days, P = 0.03) and shortened the time (57.3 days vs. 70.5 days, P = 0.002) between the first admission and the reimplantation of a new prosthesis. The average cost of hospital stay ($8589.6 vs. $10,422.6, P = 0.021), antibiotics ($1052.2 vs. $1484.7, P = 0.032) and other medications ($691.5 vs. $1237.6, P = 0.014) per patient at our hospital were significantly decreased. Notably, significant improvements in patient satisfaction were seen in participants in the MR group.

CONCLUSION

Through MR by clinical pharmacists, medication discrepancies within the orthopedic ERAS program could be identified. For patients with periprosthetic joint infection, better patient satisfaction and clinical and economical outcomes can be achieved with this method.

Preoperative carbohydrate loading with individualized supplemental insulin in diabetic patients undergoing gastrointestinal surgery: A randomized trial

BACKGROUND

Preoperative carbohydrate drink is used to improve patients' comfort and recovery, but evidence remains limited in diabetic patients. Herein we investigated the effects of preoperative carbohydrate loading with individualized supplemental insulin regimen in diabetic patients undergoing gastrointestinal surgery.

METHODS

A total of 63 adult patients with type 2 diabetes mellitus undergoing major gastrointestinal surgery were randomized to receive either carbohydrate loading with individualized supplemental insulin (Carbohydrate group) or routine management (Control group). The primary outcome was time to first flatus after surgery. Among secondary outcomes, subjective feelings of thirsty, hunger and fatigue were assessed with the Visual Analogue Scale (scores range from 0 to 100, where 0 indicate no discomfort and 100 the most severe discomfort) before and after surgery. Adverse events were monitored until 24 h after surgery.

RESULTS

All patients were included in the intention-to-treat analysis. Time to first flatus did not differ between groups (median 41 h [IQR 18-69] in the Control group vs. 43 h [27-54] in the Carbohydrate group; hazard ratio 1.24 [95% CI 0.74-2.07]; P = 0.411). The VAS score of preoperative subject feeling of thirsty (median difference -33 [95% CI -50 to -15], P < 0.001), hunger (-25 [-40 to -10], P < 0.001), and fatigue (-5 [-30 to 0], P = 0.004), as well as postoperative subject feeling of thirsty (-50 [-60 to -30], P < 0.001), hunger (-20 [-40 to 0], P = 0.003), and fatigue (0 [-20 to 0], P = 0.020) were all significantly lower in the Carbohydrate group than in the Control group. Intraoperative hypotension (40.6% [13/32] vs. 16.1% [5/31], P = 0.031) and postoperative nausea and vomiting within 24 h (31.3% [10/32] vs. 9.7% [3/31], P = 0.034) occurred less in patients given carbohydrate drink.

CONCLUSION

In diabetic patients undergoing gastrointestinal surgery, preoperative carbohydrate loading with individualized supplemental insulin did not promote gastrointestinal recovery but improved perioperative well-being.

Effects of Perioperative Oral Nutrition Supplementation in Malaysian Patients Undergoing Elective Surgery for Breast and Colorectal Cancers-A Randomised Controlled Trial

This study aimed to investigate the effectiveness of preoperative and an extended 90-days postoperative use of ONS among patients undergoing elective surgery for breast and colorectal cancers. Ninety-one patients were randomised into (i) Group SS received ONS up to 14 days preoperatively and postoperatively up to discharge, (ii) Group SS-E received ONS up to 14 days preoperatively, postoperatively up to discharge and for an extended 90-days after discharge and (iii) Group DS received ONS postoperatively up to discharge. Preoperatively, SS had significantly higher body weight (66.1 ± 15.3 kg vs. 62.5 ± 12.0 kg, p = 0.010) and BMI (26.8 ± 6.8 kg/m2 vs. 26.1 ± 6.7 kg/m2, p = 0.022) than DS when adjusted for baseline values. Postoperatively, SS-E had significantly higher handgrip strength (26 ± 9 kgF vs. 24 ± 6 kgF, p = 0.044) than DS at 90-days post-discharge after adjusted for preoperative values. At 90-days post-discharge, the proportions of patients in SS with albumin < 35 g/d, CAR ≥ 0.1, mPINI ≥ 0.4, mGPS score 1 or 2 were significantly reduced while in SS-E, the reduction in proportions of patients with high hsCRP and mPINI ≥ 0.4 was significant compared to upon discharge. Preoperative ONS had modest benefits in attenuating weight loss whilst postoperative supplementation up to 90-days post-discharge improved handgrip strength and inflammatory prognostic markers.

Duration of postoperative hyperlactatemia has predictive value in recurrent fistula after major definitive surgery for intestinal fistula

PURPOSE

The present study aimed to identify the predictive value of duration of postoperative hyperlactatemia in screening patients at high risk of recurrent fistula after major definitive surgery (DS) for intestinal fistula.

METHODS

If the initial postoperative lactate (IPL) > 2 mmol/L, DS was defined as major definitive surgery. The 315 enrolled patients with major DS were divided into group A (2 mmol/L < IPL ≤ 4 mmol/L), group B (mmol/L < IPL ≤ 6 mmol/L), and group C (IPL > 6 mmol/L). The characteristics of patients were collected, and the duration of postoperative hyperlactatemia was analyzed. According to the occurrence of recurrent fistula (RF), patients were further divided into RF group A, and Non-RF group A; RF group B, and Non-RF group B; and RF group C, and Non-RF group C.

RESULTS

The duration of postoperative hyperlactatemia was comparable between the RF group A and the Non-RF group A [12 (IQR: 12-24) vs 24 (IQR: 12-24), p = 0.387]. However, the duration of hyperlactatemia was associated with RF in group B (adjusted OR = 1.061; 95% CI: 1.029-1.094; p < 0.001) and group C (adjusted OR = 1.059; 95% CI: 1.012-1.129; p = 0.017). In group B, the cutoff point of duration of 42 h had the optimal predictive value (area under ROC = 0.791, sensitivity = 0.717, specificity = 0.794, p < 0.001). In group C, the cutoff point of duration of 54 h had the optimal predictive value (area under ROC = 0.781, sensitivity = 0.730, specificity = 0.804, p < 0.001).

CONCLUSION

The duration of postoperative hyperlactatemia has a value in predicting RF in patients with an IPL of more than 4 mmol/L after major definitive surgery for intestinal fistula.

The Effect of Progressive Relaxation Exercise on Physiological Parameters, Pain and Anxiety Levels of Patients Undergoing Colorectal Cancer Surgery: A Randomized Controlled Study

PURPOSE

This study aimed to determine the effect of progressive relaxation exercises on physiological parameters, pain, anxiety, and serum cortisol levels in patients undergoing colorectal cancer surgery.

DESIGN

This study is a randomized controlled study and has been registered at the Clinical Trial Registry Center (ID: NCT04731428).

METHODS

The study was conducted on 63 patients (experimental group = 31, control group = 32), who were scheduled for elective laparoscopic-colorectal surgery in the general surgery clinic of a university hospital in Istanbul between March 2018 and May 2019 and met the inclusion criteria. The patients in the experimental group were given progressive relaxation exercises for 15 minutes preoperatively and on postoperative days 1, 2, and 3 after breathing exercise training. The routine treatments and care process of the patients in the control group were maintained. The preoperative and postoperative pain and anxiety levels of both groups were evaluated. Blood pressure, heart rate and respiratory rate, oxygen saturation, and serum cortisol levels were measured at certain time intervals before and after the relaxation exercise.

FINDINGS

The patients in the experimental group had lower postoperative pain and anxiety levels and a lower rate of using opioid analgesic on postoperative day 0 compared to the control group. Progressive relaxation exercise had no statistically significant effect on serum cortisol or physiological parameters (P > .05).

CONCLUSIONS

Progressive relaxation exercise did not affect cortisol levels and vital signs but decreased pain and anxiety, and relatively increased tissue oxygenation, appearing an effective, safe, and practicable nursing intervention.

Geriatric Implications of Surgical Oncology

Surgical oncology is cancer care that focuses on using surgery to diagnose, stage, and treat cancer and is one of the main treatments for malignancy. Patients older than 65 years are generally considered geriatric. The incidence of cancer in geriatric patients is increasing annually. Candidacy for surgical intervention depends on factors such as cancer type, size, location, grade and stage of the tumor, and the patient's overall health status and age. Despite increasing agreement that age should not limit treatment options, geriatric patients tend to be undertreated. Cancer in geriatric patients has different features than in younger patients. As such, treatment options may be dissimilar in these 2 cohorts. Here, care of the geriatric patient undergoing surgical oncology interventions is discussed.

Outcomes of early enteral feeding in patients after curative colorectal cancer surgery: A retrospective comparative study

PURPOSE

To compare the clinical outcomes of patients with and without early enteral nutrition after colorectal cancer surgery.

METHODS

This is a retrospective comparative study using propensity score-matched cases. The study subjects were patients who received colorectal cancer resection surgeries during 2013 and 2018 in a Taiwan medical center. Data of the following variables were retrieved from subjects' medical records: age, sex, diagnosis, pathological stage, surgical approach, comorbidity, risk of malnutrition, anesthesia duration, enteral nutrition, time to the first postoperative flatus, time to the first defecation, feeding associated symptoms, nutrition interruptions, time to achieve nutrition goals, postoperative complications, the length of hospital stay. Subjects who received enteral nutrition within 48 h after the surgery were considered as the early enteral nutrition group.

RESULTS

After propensity score matching, 227 subjects in each group were included in the final analysis. The early enteral nutrition group showed better results in the time to first postoperative flatus (mean difference: 0.96, 95% confidence interval: 1.16 ~ -0.76), the time to achieve nutrition goals (mean difference: 1.26, 95% confidence interval: 0.65 ~ -1.87), and the length of hospital stay (mean difference: 1.53, 95% confidence interval: 2.56 ~ -0.42), compared with the delayed enteral nutrition group. There were no between-group differences in the incidences of vomiting, distension, ileus, anastomosis leak, infection, re-operation, and interruptions of enteral nutrition.

CONCLUSIONS

Enteral feeding after colorectal cancer surgery can accelerate the recovery of gastrointestinal tract activities, promote nutrient intake, and shorten the length of hospital stay without increasing postoperative complications.

Perianesthesia Care of the Oncologic Patients Undergoing Cytoreductive Surgery with Hyperthermic Intraperitoneal Chemotherapy: A Retrospective Study

PURPOSE

This study was to understand the perianesthesia care for patients undergoing cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (CRS  + HIPEC).

METHOD

This is a retrospective study.

DESIGN

The perioperative electronic medical records of 189 CRS  + HIPEC surgical cases at a hospital of Western Pennsylvania from 2012 to 2018 were analyzed to study the characteristics of perianesthesia care for CRS  + HIPEC surgery.

FINDINGS

The patients' median age was 57 (range 21-83) years, and 60% were men. The mean anesthesia time was 10.47 ± 2.54 hours. Most tumors were appendix or colorectal in origin, and the mean peritoneal cancer index score was 16.19 ± 8.76. The mean estimated blood loss was 623 ± 582 mL. The mean total intravenous crystalloid administered was 8,377 ± 4,100 mL. Fifty-two patients received packed red blood cells during surgery. Postoperatively, 100% of the patients were transferred to the intensive care unit. A majority (52%) of patients were extubated in the operating room. Median lengths of hospital and intensive care unit stays were 13 and 2 days, respectively. A majority (73%) of patients had 1 or more postoperative complications and 29% of patients experienced major postoperative complications (Clavien-Dindo grade III or higher) during the hospital stay. Prolonged hospitalization was owing to gastrointestinal dysfunctions and respiratory failure related to atelectasis and pleural effusion.

CONCLUSIONS

CRS  + HIPEC is a major surgery with numerous challenges to the perianesthesia care team regarding hemodynamic adjustment, pain control, and postoperative complications, which demand training and future studies from the perianesthesia care team.

Can preventive hyperbaric oxygen therapy optimise surgical outcome?: A systematic review of randomised controlled trials

BACKGROUND

A primary underlying cause of postoperative complications is related to the surgical stress response, which may be mitigated by hyperbaric oxygen therapy (HBOT), the intermittent administration of oxygen at a pressure higher than the atmospheric pressure at sea level. Promising clinical studies have emerged suggesting HBOT's efficacy for reducing some postoperative complications. Notwithstanding, the effectiveness (if any) of HBOT across a range of procedures and postoperative outcomes has yet to be clearly quantified.

OBJECTIVE

This systematic review aimed to summarise the existing literature on peri-operative HBOT to investigate its potential to optimise surgical patient outcome.

DESIGN

A systematic review of randomised controlled trials (RCTs) with narrative summary of results.

DATA SOURCES

MEDLINE, EMBASE, CINAHL and the Cochrane Central Register of Controlled Trials were searched without language restrictions through to 19 June 2018.

ELIGIBILITY CRITERIA

Studies were included if they involved patients of any age undergoing any surgical procedure and provided with at least one HBOT session in the peri-operative period. Two independent reviewers screened the initial identified trials and determined those to be included. Risk of bias was assessed using the Cochrane Risk of Bias tool for RCTs.

RESULTS

The search retrieved 775 references, of which 13 RCTs were included (627 patients). Ten RCTs (546 patients) reported treatment was effective for improving at least one of the patient outcomes assessed, while two studies (55 patients) did not find any benefit and one study (26 patients) found a negative effect. A wide range of patient outcomes were reported, and several other methodological limitations were observed among the included studies, such as limited use of sham comparator and lack of blinding.

CONCLUSION

Peri-operative preventive HBOT may be a promising intervention to improve surgical patient outcome. However, future work should consider addressing the methodological weaknesses identified in this review.

TRIAL REGISTRATION

The protocol (CRD42018102737) was registered with the International ProspectiveRegister of Systematic Reviews (PROSPERO).

Risk factors for surgery-related muscle quantity and muscle quality loss and their impact on outcome

Background

Surgery-related loss of muscle quantity negatively affects postoperative outcomes. However, changes of muscle quality have not been fully investigated. A perioperative intervention targeting identified risk factors could improve postoperative outcome. This study investigated risk factors for surgery-related loss of muscle quantity and quality and outcomes after liver resection for colorectal liver metastasis (CRLM).

Methods

Data of patients diagnosed with CRLM who underwent liver resection between 2006 and 2016 were analysed. Muscle quantity (psoas muscle index [PMI]), and muscle quality, (average muscle radiation attenuation [AMA] of the psoas), were measured using computed tomography. Changes in PMI and AMA of psoas after surgery were assessed.

Results

A total of 128 patients were analysed; 67 (52%) had surgery-related loss of muscle quantity and 83 (65%) muscle quality loss. Chronic obstructive pulmonary disease (COPD) (P = 0.045) and diabetes (P = 0.003) were risk factors for surgery-related loss of muscle quantity. A higher age (P = 0.002), open resection (P = 0.003) and longer operation time (P = 0.033) were associated with muscle quality loss. Overall survival was lower in patients with both muscle quantity and quality loss compared to other categories (P = 0.049). The rate of postoperative complications was significantly higher in the group with surgery-related loss of muscle quality.

Conclusions

Risk factors for surgery-related muscle loss were identified. Overall survival was lowest in patients with both muscle quantity and quality loss. Complication rate was higher in patients with surgery-related loss of muscle quality.

Comparison of postoperative cytokine and hormone between endoscopically assisted and open parotid tumor resection

OBJECTIVE

Endoscopically assisted extracapsular dissection through a single incision along the cephaloauricular furrow has been adapted as a method of access for operating on benign parotid gland tumors. However, no study has compared the immune and stress responses after surgery between the endoscopic procedure and conventional open surgery.

METHODS

Through a randomized method, 50 patients with benign parotid gland tumors were assigned to undergo either endoscopically assisted extracapsular dissection or open parotidectomy. The postoperative inflammatory changes and hormonal response in the patients were analyzed at serum level during the preoperative period and at 12, 24, and 72 hr after either surgery.

RESULTS

Twenty-three patients received an endoscopic procedure, while 27 underwent open surgery. The size of the incision, amount of intraoperative bleeding, volume of drainage, postoperative pain score, and satisfaction with appearance were all improved in the endoscopic procedure group. Additionally, the serum levels of C-reactive protein, interleukin (IL)-6, IL-10, and cortisol were significantly lower in the endoscopy group in comparison with those in the open surgery group.

CONCLUSION

Endoscopically assisted extracapsular dissection on patients with benign parotid gland tumors is associated with lower inflammatory changes and hormone responses than open surgery, thereby reducing perioperative pathophysiological disturbance and enhancing recovery after surgery.

Prehabilitation

In this article, we review the evidence underpinning the broader prehabilitation concept and the target behavioural and lifestyle risk factors including their perioperative impact and evidence for prehabilitation intervention. We also identify principles for delivering prehabilitation in practice, alongside lessons for the perioperative setting from well-established allied interventions; cardiac and pulmonary rehabilitation.

The effects of laparoscopic urologic surgery on cardiac functions: A pulse wave velocity study

OBJECTIVE

The aim of this study is to evaluate the effects of laparoscopic urologic surgery on cardiac functions by the parameter pulse wave velocity (PWV), a noninvasive method.

MATERIAL AND METHODS

Between July 2012 and February 2013, a total of 47 patients were included in this prospective controlled study. Patients who have been scheduled for laparoscopic surgery (LS) (n=30) and open surgery (n=17) were enrolled in the study. Preoperative, perioperative, and postoperative cardiovascular parameters were measured by a PWV instrument, and the results were compared between laparoscopic (L) group and open (C) group.

RESULTS

In the L group, compared to preoperative values, perioperative systolic arterial pressure, diastolic arterial pressure, and mean arterial pressure increased considerably, by 2.6%, 7.9%, and 4.7%, respectively. This was in contrary to reductions in these parameters by 9.5%, 5.7%, and 10%, respectively, in the C group. For the L group, cardiac output (CO) and cardiac index (CI) were increased in the perioperative period and decreased in the postoperative period. For the C group, there were no changes in measurements of perioperative and postoperative CO and CI. However, these changes in CO and CI were not significantly different between the L and C groups. Postoperative large artery elasticity index decreased in both groups. However, these changes did not represent significant difference between groups.

CONCLUSION

Compared to open surgery, LS may cause increases in perioperative blood pressures. In addition, increased blood pressures may last even on the first postoperative day. These effects may be more important for patients with high cardiovascular risk.

Nutrition in surgical patients: how soon is too soon?

PURPOSE OF REVIEW

Preoperative nutrition support has been extensively studied; however, data on the timing of postoperative nutrition initiation are scarce. The current review focuses on the importance of early nutritional support in surgical patients and their impact on outcomes.

RECENT FINDINGS

Early nutrition support during the postoperative course may be the most important step that can be taken toward preventing subsequent malnutrition-related complications. European Society for Parenteral and Enteral Nutrition guidelines recommends early nutrition to improve outcomes after surgery and accelerates the recovery. Moreover, nutritional support should be personalized, and disease process-based.

SUMMARY

Existing studies appear to focus mostly on abdominal and gastrointestinal surgery. Further prospective observational and randomized clinical trials across different surgical populations will aid surgeons to better understand how early feeds in either form can reduce morbidity, quality of life, and increase recovery rates.