Pain Levels Experienced With Activities After Cardiac Surgery

Pain after sternotomy - review

BACKGROUND AND OBJECTIVE

Adequate analgesia after sternotomy reduces postoperative adverse events. There are various methods of treating pain after heart surgery, such as infiltration with a local anesthetic, nerve block, opioids, non-steroidal anti-inflammatory drugs, alpha-adrenergic agents, intrathecal and epidural techniques, and multimodal analgesia.

CONTENT

A review of the epidemiology, pathophysiology, prevention and treatment of pain after sternotomy. We also discuss the various analgesic therapeutic modalities, emphasizing advantages and disadvantages of each technique.

CONCLUSIONS

Heart surgery is performed mainly via medium sternotomy, which results in significant postoperative pain and a non-negligible incidence of chronic pain. Effective pain control improves patient satisfaction and clinical outcomes. There is no clearly superior technique. It is believed that a combined multimodal analgesic regimen (using different techniques) is the best approach for treating postoperative pain, maximizing analgesia and reducing side effects.

Postoperative pain documentation in a hospital setting: A topical review

Background and aims

Nursing documentation supports continuity of care and provides important means of communication among clinicians. The aim of this topical review was to evaluate the published empirical studies on postoperative pain documentation in a hospital setting.

Methods

The review was conducted through a systematic search of electronic databases: Web of Science, PubMed/Medline, CINAHL, Embase, Ovid/Medline, Scopus and Cochrane Library. Ten studies were included. Study designs, documented postoperative pain information, quality of pain documentation, reported quality of postoperative pain management and documentation, and suggestions for future research and practice improvements were extracted from the studies.

Results

The most commonly used study design was a descriptive retrospective patient record review. The most commonly reported types of information were pain assessment, use of pain assessment tools, useof pain management interventions, reassessment, types of analgesics used, demographic information and pain intensity. All ten studies reported that the quality of postoperative pain documentation does not meet acceptable standards and that there is a need for improvement. The studies found that organization of regular pain management education for nurses is important for the future.

Conclusions

Postoperative pain documentation needs to beimproved. Regular educational programmes and development of monitoring systems for systematic evaluation of pain documentation are needed. Guidelines and recommendations should be based on the latest research evidence, and systematically implemented into practice.

Implications

Comprehensive auditing tools for evaluation of pain documentation can make quality assessment easier and coherent. Specific and clear documentation guidelines are needed and existing guidelines should be better implemented into practice. There is a need to increase nurses’ knowledge of postoperative pain management, assessment and documentation. Studies evaluating effectiveness of high quality pain documentation are required.

Intraoperative Methadone for the Prevention of Postoperative Pain

Background:

The intensity of pain after cardiac surgery is often underestimated, and inadequate pain control may be associated with poorer quality of recovery. The aim of this investigation was to examine the effect of intraoperative methadone on postoperative analgesic requirements, pain scores, patient satisfaction, and clinical recovery.

Methods:

Patients undergoing cardiac surgery with cardiopulmonary bypass (n = 156) were randomized to receive methadone (0.3 mg/kg) or fentanyl (12 μg/kg) intraoperatively. Postoperative analgesic requirements were recorded. Patients were assessed for pain at rest and with coughing 15 min and 2, 4, 8, 12, 24, 48, and 72 h after tracheal extubation. Patients were also evaluated for level of sedation, nausea, vomiting, itching, hypoventilation, and hypoxia at these times.

Results:

Postoperative morphine requirements during the first 24 h were reduced from a median of 10 mg in the fentanyl group to 6 mg in the methadone group (median difference [99% CI], −4 [−8 to −2] mg; P < 0.001). Reductions in pain scores with coughing were observed during the first 24 h after extubation; the level of pain with coughing at 12 h was reduced from a median of 6 in the fentanyl group to 4 in the methadone group (−2 [−3 to −1]; P < 0.001). Improvements in patient-perceived quality of pain management were described in the methadone group. The incidence of opioid-related adverse events was not increased in patients administered methadone.

Conclusions:

Intraoperative methadone administration resulted in reduced postoperative morphine requirements, improved pain scores, and enhanced patient-perceived quality of pain management.

Pain characteristics and analgesic intake before and following cardiac surgery

BACKGROUND

Cardiac surgery is a common intervention that involves several pain-sensitive structures, and intense postoperative pain is a predictor of persistent pain.

AIMS

To describe pain characteristics (i.e. intensity, location, interference, relief) and analgesic intake preoperatively and across postoperative days 1 to 4 after cardiac surgery, and to explore associations between postoperative pain and demographic and clinical characteristics.

METHODS

Four hundred and sixteen patients (24% women) undergoing elective coronary artery bypass grafting and/or valve surgery were enrolled in a randomized controlled trial. Data were collected using standardized measures including the Brief Pain Inventory-short form. A linear mixed model analysis estimated the impact of sex, age, body mass index, analgesic intake and preoperative pain on postoperative worst pain ratings in the previous 24 hours from postoperative days 1 to 4 prior to discharge

RESULTS

Thirty-eight per cent of the cardiac surgery patients reported preoperative pain. Postoperative worst pain remained in the moderate to severe range for the majority of patients across day 1 (85%) to day 4 (57%), mainly around the chest incision area for the majority (70%). Mean oral morphine intake was 17 mg/24 h (day 1: 27mg; day 4: 10mg). Lower age, female sex, preoperative pain and analgesic intake had a statistically significant association with higher postoperative worst pain ratings.

CONCLUSION

Study findings demonstrated a high prevalence of moderate to severe pain after cardiac surgery and insufficient analgesic administration. Results indicated that patients were discharged from hospital with unrelieved pain and a potential risk for further postoperative complications.

Assessment of pain during rest and during activities in the postoperative period of cardiac surgery

OBJECTIVE

to assess the intensity and site of pain after Cardiac Surgery through sternotomy during rest and while performing five activities.

METHOD

descriptive study with a prospective cohort design. A total of 48 individuals participated in the study. A Multidimensional Scale for Pain Assessment was used.

RESULTS

postoperative pain from cardiac surgery was moderate during rest and decreased over time. Pain was also moderate during activities performed on the 1st and 2nd postoperative days and decreased from the 3rd postoperative day, with the exception of coughing, which diminished only on the 6th postoperative day. Coughing, turning over, deep breathing and rest are presented in decreased order of intensity. The region of the sternum was the most frequently reported site of pain.

CONCLUSION

the assessment of pain in the individuals who underwent cardiac surgery during rest and during activities is extremely important to adapt management and avoid postoperative complications and delayed surgical recovery.

SOULAGE-TAVIE: development and validation of a virtual nursing intervention to promote self-management of postoperative pain after cardiac surgery

This article is the report of the development and validation of a tailored Web-based intervention for postoperative pain self-management in adults who underwent cardiac surgery. The development of SOULAGE-TAVIE included four main phases: (1) identification of a clinical problem, (2) outline design, (3) clinical operationalization, and (4) production. The validation of the intervention's feasibility and acceptability was made through pilot testing with 30 patients expecting cardiac surgery over 4 months in 2010. SOULAGE-TAVIE consists of a 30-minute computer-tailored preoperative educational session about postoperative pain management. Activities and information were tailored according to a predetermined profile. Two short reinforcements were provided in person postoperatively. Ninety-six percent of participants agreed that the strategies proposed responded to their needs. An iterative process among various sources of knowledge gave place to an innovative approach to preoperative education. Pilot testing provided preliminary support for the acceptability and feasibility of a tailored Web-based intervention. Patient empowerment is complementary yet crucial in the current context of care and may contribute to improved pain relief. The use of information technologies can increase personalization and accessibility to health education in a complex environment of care.

Clinical practice guidelines for the management of pain, agitation, and delirium in adult patients in the intensive care unit

OBJECTIVE

To revise the "Clinical Practice Guidelines for the Sustained Use of Sedatives and Analgesics in the Critically Ill Adult" published in Critical Care Medicine in 2002.

METHODS

The American College of Critical Care Medicine assembled a 20-person, multidisciplinary, multi-institutional task force with expertise in guideline development, pain, agitation and sedation, delirium management, and associated outcomes in adult critically ill patients. The task force, divided into four subcommittees, collaborated over 6 yr in person, via teleconferences, and via electronic communication. Subcommittees were responsible for developing relevant clinical questions, using the Grading of Recommendations Assessment, Development and Evaluation method (http://www.gradeworkinggroup.org) to review, evaluate, and summarize the literature, and to develop clinical statements (descriptive) and recommendations (actionable). With the help of a professional librarian and Refworks database software, they developed a Web-based electronic database of over 19,000 references extracted from eight clinical search engines, related to pain and analgesia, agitation and sedation, delirium, and related clinical outcomes in adult ICU patients. The group also used psychometric analyses to evaluate and compare pain, agitation/sedation, and delirium assessment tools. All task force members were allowed to review the literature supporting each statement and recommendation and provided feedback to the subcommittees. Group consensus was achieved for all statements and recommendations using the nominal group technique and the modified Delphi method, with anonymous voting by all task force members using E-Survey (http://www.esurvey.com). All voting was completed in December 2010. Relevant studies published after this date and prior to publication of these guidelines were referenced in the text. The quality of evidence for each statement and recommendation was ranked as high (A), moderate (B), or low/very low (C). The strength of recommendations was ranked as strong (1) or weak (2), and either in favor of (+) or against (-) an intervention. A strong recommendation (either for or against) indicated that the intervention's desirable effects either clearly outweighed its undesirable effects (risks, burdens, and costs) or it did not. For all strong recommendations, the phrase "We recommend …" is used throughout. A weak recommendation, either for or against an intervention, indicated that the trade-off between desirable and undesirable effects was less clear. For all weak recommendations, the phrase "We suggest …" is used throughout. In the absence of sufficient evidence, or when group consensus could not be achieved, no recommendation (0) was made. Consensus based on expert opinion was not used as a substitute for a lack of evidence. A consistent method for addressing potential conflict of interest was followed if task force members were coauthors of related research. The development of this guideline was independent of any industry funding.

CONCLUSION

These guidelines provide a roadmap for developing integrated, evidence-based, and patient-centered protocols for preventing and treating pain, agitation, and delirium in critically ill patients.

Preoperative education and use of analgesic before onset of pain routinely for post-thoracotomy pain control can reduce pain effect and total amount of analgesics administered postoperatively

The purpose of this study was to investigate the efficiency of preoperative pain management education and the role of analgesics administration before the onset of pain postoperatively. The study was a prospective, randomized, and single-blind clinical trial, which was conducted January 1, 2008 through October 1, 2008 in the Thoracic Surgery Unit of Akdeniz University Hospital. A total of 70 patients who underwent thoracotomy (35 in the control group and 35 in the study group) were included in the study. Of the patients, 70% (n = 49) were male and 30% (n = 21) were female. Mean age was 51 ± 10 years (range = 25-65). The same analgesia method was used for all patients; the same surgical team performed each operation. Methods, including preemptive analgesia and placement of pleural or thoracic catheter for using analgesics, that were likely to affect pain level, were not used. The same analgesia medication was used for both patient groups. But the study group, additionally, was educated on how to deal with pain preoperatively and on the pharmacological methods to be used after surgery. An intramuscular diclofenac Na 75 mg was administered to the study group regardless of whether or not they reported pain in the first two postoperative hours. The control group did not receive preoperative education, and analgesics were not administered to them unless they reported pain in the postoperative period. The routine analgesics protocol was as follows: diclofenac Na 75 mg (once a day) intramuscular administered upon the complaint of pain following extubation in the postoperative period and 20 mg mepederin intravenously (maximum dose, 100 mg/day), in addition, when the patient expressed pain. Pain severity was assessed during the second, fourth, eighth, 16th, 24th, and 48th hours, and marked using the Verbal Category Scale and the Behavioral Pain Assessment Scale. Additionally, the total dose of daily analgesics was calculated. The demographic characteristics showed a homogeneous distribution in both patient groups. The rate of pain, which was defined as sharp, stabbing, and exhausting, was higher in the control group than in the study group, and the difference between the two groups was statistically significant (p < .05). As the doses of analgesics used for pain management in both groups were compared, it was determined that analgesic consumption was lower in the study group than in the control group, and the difference was statistically significant (p < .05). As a result, it was determined that preoperative thoracic pain management education and analgesics administered postoperatively, before the onset of pain, reduced the amount of analgesics used in the first postoperative 48 hours.

Treinamento e avaliação sistematizada da dor: impacto no controle da dor do pós-operatório de cirurgia cardíaca

Neste estudo analisou-se o efeito do Treinamento e uso de Ficha de Avaliação Sistematizada para controle da dor após cirurgia cardíaca, sobre a intensidade da dor e o consumo de morfina suplementar. Três grupos de pacientes foram submetidos a um ensaio clínico não randomizado com prescrição analgésica padronizada. No Grupo I, a equipe de enfermagem não recebeu treinamento sobre avaliação e manejo da dor e cuidou dos doentes conforme a rotina da instituição. Nos grupos II e III, toda a equipe foi treinada. A equipe de enfermagem do grupo II utilizou a Ficha Sistematizada sobre Dor, e a do grupo III não a utilizou. O grupo II apresentou dor menos intensa e maior uso de morfina suplementar. O treinamento associado à Ficha de Avaliação aumentou a chance de identificar a dor e influenciou o processo de decisão do enfermeiro na administração de morfina, favorecendo o alívio da dor dos pacientes.

Web-based nursing intervention for self-management of pain after cardiac surgery: pilot randomized controlled trial

BACKGROUND

Most adults undergoing cardiac surgery suffer from moderate to severe pain for up to 6 days after surgery. Individual barriers and attitudes regarding pain and its relief make patients reluctant to report their pain and ask for analgesic medication, which results in inadequate pain management. More innovative educational interventions for postoperative pain relief are needed. We developed a Web-based nursing intervention to influence patient's involvement in postoperative pain management. The intervention (SOULAGE-TAVIE) includes a preoperative 30-minute Web-based session and 2 brief face-to-face postoperative booster sessions. The Web application generates reflective activities and tailored educational messages according to patients' beliefs and attitudes. The messages are transmitted through videos of a virtual nurse, animations, stories, and texts.

OBJECTIVE

The aim of this single-blinded pilot randomized trial was to investigate the preliminary effects of a virtual nursing intervention (SOULAGE-TAVIE) to improve pain relief in patients undergoing cardiac surgery.

METHODS

Participants (N = 60) were adults scheduled for their first cardiac surgery. They were randomly assigned to the experimental group using SOULAGE-TAVIE (n = 30) or the control group using usual care, including an educational pamphlet and postoperative follow-up (n = 30). Data were collected through questionnaires at the time of admission and from day 1 to day 7 after surgery with the help of a blinded research assistant. Outcomes were pain intensity, pain interference with daily activities, patients' pain barriers, tendency to catastrophize in face of pain, and analgesic consumption.

RESULTS

The two groups were comparable at baseline across all demographic measures. Results revealed that patients in the experimental group did not experience less intense pain, but they reported significantly less pain interference when breathing/coughing (P = .04). A severe pain interference with breathing/coughing (pain ranked ≥ 7/10) was reported on day 3 after surgery by 15% of the patients in the experimental group (4/27), as compared to 44% (7/16) in the control group. On day 7 after surgery, participants in the experimental group also exhibited fewer pain-related barriers as measured by the Barriers Questionnaire-II (mean 10.6, SD 8.3) than patients in the control group (mean 15.8, SD 7.3, P = .02). No difference was found for pain catastrophizing. However, in both groups, means revealed a lower tendency to catastrophize pain before surgery as measured by the Pain Catastrophizing Scale (control group mean 1.04, SD 0.74; experimental group mean 1.10, SD 0.95) and after surgery (control group mean score 1.19, SD 0.94; experimental group mean score 1.08, SD 0.99). Finally, the experimental group consumed more opioid medication (mean 31.2 mg, SD 23.2) than the control group (mean 18.8 mg, SD 15.3, P = .001).

CONCLUSIONS

This pilot study provides promising results to support the benefits of this new Web-tailored approach that can increase accessibility to health education and promote pain relief without generating more costs.

TRIAL REGISTRATION

Clinicaltrials.gov NCT01084018; http://www.clinicaltrials.gov/ct2/show/NCT01084018 (Archived by WebCite® at http://www.webcitation.org/6CoTBkIoT).

The analgesic effects of a bilateral sternal infusion of ropivacaine after cardiac surgery

BACKGROUND AND OBJECTIVES

The aim of this study was to assess the effects of a continuous postoperative administration of local anesthetic through 2 catheters placed deeply under fascia at the lateral edges of the sternum, close to the emergence of the intercostal nerves. We focused on pain during mobilization, as this aspect is likely to interact with postoperative morbidity.

METHODS

Forty adult patients scheduled for open heart surgery with sternotomy were included in this randomized, placebo-controlled, double-blind study. A continuous fixed-rate infusion of 4 mL/hr of 0.2% ropivacaine or normal saline was administered during the first 48 postoperative hrs. All patients received acetaminophen and self-administered morphine. The efficacy outcomes were as follows: pain score during standardized mobilization and at rest; morphine consumption; spirometry and arterial blood gases; postoperative rehabilitation criteria, and patient satisfaction. Total ropivacaine plasma level was monitored throughout the study.

RESULTS

Pain scores were lower in the ropivacaine group during mobilization (P = 0.0004) and at rest (P = 0.0006), but the analgesic effects were mostly apparent during the second day after surgery, with a 41% overall reduction in movement-evoked pain levels. The bilateral sternal block also reduced morphine consumption. It improved the patients' satisfaction and rehabilitation, but no effects were noted on respiratory outcomes. No major adverse effect due to the treatment occurred, but the ropivacaine plasma level was greater than 4 mg/L in 1 patient.

CONCLUSIONS

This technique may find a role within the framework of multimodal analgesia after sternotomy, although further confirmatory studies are needed.

Lung Function before and Two Days after Open-Heart Surgery

Reduced lung volumes and atelectasis are common after open-heart surgery, and pronounced restrictive lung volume impairment has been found. The aim of this study was to investigate factors influencing lung volumes on the second postoperative day. Open-heart surgery patients (n = 107, 68 yrs, 80% male) performed spirometry both before surgery and on the second postoperative day. The factors influencing postoperative lung volumes and decrease in lung volumes were investigated with univariate and multivariate analyses. Associations between pain (measured by numeric rating scale) and decrease in postoperative lung volumes were calculated with Spearman rank correlation test. Lung volumes decreased by 50% and were less than 40% of the predictive values postoperatively. Patients with BMI >25 had lower postoperative inspiratory capacity (IC) (33 ± 14% pred.) than normal-weight patients (39 ± 15% pred.), (P = 0.04). More pain during mobilisation was associated with higher decreases in postoperative lung volumes (VC: r = 0.33, P = 0.001; FEV₁: r = 0.35, P ≤ 0.0001; IC: r = 0.25, P = 0.01). Patients with high BMI are a risk group for decreased postoperative lung volumes and should therefore receive extra attention during postoperative care. As pain is related to a larger decrease in postoperative lung volumes, optimal pain relief for the patients should be identified.

Mild, moderate, and severe pain in patients recovering from major abdominal surgery

Pain interferes with various activities, such as coughing, deep breathing, and ambulation, designed to promote recovery and prevent complications after surgery. Determining appropriate cutpoints for mild, moderate, and severe pain is important, because specific interventions may be based on this classification. The purpose of this research was to determine optimal cutpoints for postoperative patients based on their worst and average pain during hospitalization and after discharge to home, and whether the optimal cutpoints distinguished patients with mild, moderate, or severe pain regarding patient outcomes. This secondary analysis consisted of 192 postoperative patients aged ≥60 years. Multivariate analyses of variance were used to stratify the sample into mild, moderate, and severe pain groups using eight cutpoint models for worst and average pain in the last 24 hours. One-way analyses of variance were conducted to determine whether patients experiencing mild, moderate, or severe pain were different in outcome. Optimal cutpoints were similar to those previously reported, with the boundary between mild and moderate pain ranging from 3 to 4 and the boundary between moderate and severe pain ranging from 5 to 7. Worst pain cutpoints were most useful in distinguishing patients regarding fatigue, depression, pain's interference with function, and morphine equivalent administered in the previous 24 hours. A substantial proportion of patients experienced moderate to severe pain. The results suggest a narrow boundary between mild and severe pain that interferes with function. The findings indicate that clinicians should seek to aggressively manage postoperative pain ratings greater than 3.

Chest tube selection in cardiac and thoracic surgery: a survey of chest tube-related complications and their management

BACKGROUND

Blood accumulating inside chest cavities can lead to serious complications if it is not drained properly. Because life-threatening conditions can result from chest tube occlusion after thoracic surgery, large-bore tubes are generally employed to optimize patency.

AIMS

The aim of this study was to better define problems with current paradigms for chest drainage.

MATERIALS AND METHODS

A survey was conducted of North American cardiothoracic surgeons and specialty cardiac surgery nurses. A total of 108 surgeons and 108 nurses responded.

RESULTS

The survey revealed that clogging leading to chest-tube dysfunction is a major concern when choosing tube size. Of surgeons responding, 106 of 106 (100%) had observed chest tube clogging, and 93 of 106 (87%) reported adverse patient outcomes from a clogged tube. Despite techniques such as tube stripping, tapping, and squeezing, up to 51% of surveyed surgeons stated they are not satisfied with currently available tubes and procedures to avoid tube occlusion and some even forbid the stripping maneuver for fear of causing more bleeding by the negative pressures generated. In addition, respondents noted that patients experience increasing discomfort with increasing drain size.

DISCUSSION

The major reason surgeons choose large-diameter chest tubes is linked to concern about the suboptimal available methods to avoid and treat chest-tube clogging. Even though larger tubes are thought to be associated with more pain, physicians generally err on the side of caution to avoid clogging and insert tubes with larger diameters.

CONCLUSION

Results of this survey highlight the frequent problems with clogging with current postsurgical chest drainage systems and suggest the need for innovative solutions to avoid clogging complications and overcome clinician concern and patient pain.

Pain experiences of men and women after coronary artery bypass graft surgery

BACKGROUND AND RESEARCH OBJECTIVES

Individuals with coronary artery disease undergo coronary artery bypass graft (CABG) surgery to relieve symptoms, improve quality of life, and reduce early death. Pain is the most prevalent symptom identified by persons after CABG surgery. The objective of the study was to compare the prevalence and severity of pain and pain-related interference with activities in men and women 9 weeks after CABG surgery.

SUBJECTS AND METHODS

Participants included men (n = 78) and women (n = 17) who were having first-time nonemergency CABG surgery. Pain outcome data were collected via telephone using the McGill Pain Questionnaire and the Brief Pain Inventory-Interference Subscale.

RESULTS AND CONCLUSIONS

Forty-seven percent of the women (n = 8) had moderate to severe pain described as the "worst pain in previous 24 hours with movement" 9 weeks following discharge from CABG surgery. More women were divorced, widowed, or single (P = .0002). There was a statistically significant between-groups difference, with more women reporting moderate to severe pain with movement (P = .03), as well as greater interference with walking (P = .01) and sleeping (P = .01) due to pain. Further research with larger sample sizes should investigate what conditions lead to the sex differences in the pain experience after CABG surgery, what mechanisms and support structures underlie these differences, and how these differences can inform the clinical management of pain.

Effect of Gabapentin on Pain after Cardiac Surgery: A Randomised, Double-Blind, Placebo-Controlled Trial

This study evaluated whether perioperative administration of gabapentin in cardiac surgery patients could reduce postoperative opioid consumption, postoperative sleep or perceived quality of recovery. This randomised controlled trial assigned 60 patients undergoing cardiac surgery to receive 1200 mg of gabapentin or placebo two hours preoperatively, and then 600 mg of gabapentin or placebo twice a day for the next two postoperative days. Postoperative opioid use was measured by the amount of fentanyl used in the first 48 hours postoperatively. Pain at rest and with movement at 12, 24, 48 and 72 hours after surgery, sleep scores on postoperative days two and three and patient-perceived quality of recovery were also assessed. Fentanyl use, visual analog pain scores, sleep scores, adjunctive pain medication use and number of anti-emetics given were not significantly different between the gabapentin and placebo groups. The incidence of side-effects was similar between the gabapentin and placebo groups, and no difference was found between groups in relation to quality of recovery. These findings indicate that preoperative use of gabapentin followed by postoperative dosing for two days did not significantly affect the postoperative pain, sleep, opioid consumption or patient-perceived quality of recovery for patients undergoing cardiac surgery.

Identification of special care needs: the comparison of the cardiothoracic intensive care unit patient and nurse

The purposes of this study were to assess (a) the critically ill patient's and critical care nurse's identification and perception of special care needs and (b) the relationship between the patient's and nurse's perception of the identified special care needs. A qualitative approach, using linked data and open-ended surveys, was used to identify common themes and patterns in data. Data collection took place over a 2-month period at a metropolitan research hospital in the Southeast. Common themes and patterns of identified special care needs were recognized across data and with linked data between the patient and nurse. Findings indicate that both nurses and patients feel that the special care needs of the patient are being met. Common needs currently identified by the patient include miscommunication, anxiety, pain, and relaxation. Common needs currently identified by the nurses include pain management, nausea, and comfort.

[Small flexible drains after cardiac surgery. Efficacy and safety of a new system]

INTRODUCTION

The use of thoracic drains after cardiac surgery is distressing to patients and can cause a local inflammatory response. The objective of this study was to demonstrate the efficacy and safety of the flexible Blake drain for mediastinal and pleural drainage following cardiac surgery.

MATERIAL AND METHOD

We retrospectively studied 292 consecutive patients who underwent open heart surgery. The patients were divided in 2 groups: group A: 152 patients (Blake drain, 19 Ch) and group B: 140 patients (semi-flexible drains, 32 Ch). There were no significant differences in gender (56 males and 96 females in group A vs 49 males and 91 females in group B), age (67 +/- 14 in group A vs 65 +/- 14 in group B) or type of intervention (group A: 90 coronary, 59 valvular, 3 other; group B: 82 coronary, 53 valvular, 6 other). Preoperative parameters were similar in both groups. All patients received tranexamic acid as anti-fibrinolytic treatment.

RESULTS

Postoperative bleeding was lower in group A (742 +/- 368) than in group B (872 +/- 439) (p = 0.042). The number of transfusions and re-operations for bleeding re-exploration was similar in both groups. Patient satisfaction was significantly greater in the group with flexible drains (p < 0.005).

CONCLUSIONS

The use of flexible Blake drains reduced drainage after cardiac surgery without increasing the risk of bleeding or tamponade and can therefore be systematically used in cardiac surgery. Because of their flexibility, these drains produce less irritation, with accelerated recovery and lower analgesic use.

The Exploration of the Establishment of Cutpoints to Categorize the Severity of Acute Postoperative Pain

OBJECTIVES

Although several studies have established different cutpoints (CPs) for mild, moderate, and severe pain for a variety of chronic pain conditions, only one study by Mendoza and colleagues reported on CPs for acute postoperative pain that were derived using ratings of worst pain. The purpose of this study was to explore the establishment of the optimal CPs for mild, moderate, and severe postoperative pain using ratings of average and worst pain and to determine if these CPs distinguished among the pain severity groups on several outcomes.

METHODS

The study is a reanalysis of data from patients who underwent hip and knee replacement surgery. Using the methodology described by Serlin et al, a series of CP derivations were performed based on both single item scores for pain intensity and mean scores for pain intensity. One-way analyses of variance, chi analyses, or Kruskal-Wallis tests were conducted to determine if the optimal CPs for pain severity distinguished among the 3 pain severity groups on several outcomes.

RESULTS

CPs 3,5 were found using a mean score based on patients' ratings of average and worst pain on the third postoperative day. Findings suggest that mean pain scores of >3 have a significant effect on general activity, mood, walking ability, and sleep.

DISCUSSION

Possible explanations for the differences in the CPs found in this study compared with the results by Mendoza and colleagues are discussed. The findings warrant replication in other samples of postoperative patients.

Postoperative analgesia after anterior correction of thoracic scoliosis: a prospective randomized study comparing continuous double epidural catheter technique with intravenous morphine

STUDY DESIGN

Prospective randomized comparative study of two techniques for postoperative analgesia.

OBJECTIVE

Assess the efficacy of two epidural catheters compared with intravenous morphine after anterior correction of thoracic scoliosis.

SUMMARY OF BACKGROUND DATA

Spine surgery with anterior thoracotomy can cause severe postoperative pain. Continuous epidural analgesia through two epidural catheters was shown to be effective after posterior scoliosis correction. The efficacy of this technique has still not been demonstrated in this surgical context.

METHODS

Thirty adolescent patients with thoracic idiopathic scoliosis scheduled for anterior correction were prospectively randomized into morphine (M) or epidural (E) group. In the E group, two epidural catheters were placed transforaminally after scoliosis correction. The immediate postoperative analgesia was performed with remifentanil in all patients until the first postoperative morning (T0 = begin of study), when either continuous intravenous morphine (M group) or continuous epidural ropivacaine 0.3% (E group) was initiated. Pain at rest and in motion, morphine consumption, sensory level, motor blockade, nausea/vomiting, pruritus, bowel function, and patient satisfaction were assessed.

RESULTS

In the E group, there was significantly less pain at rest and in motion, less rescue morphine consumption, improved bowel activity, and higher patient satisfaction. The incidence of side effects was significantly higher in M group.

CONCLUSIONS

Two epidural catheters provide better postoperative analgesia with fewer side effects and higher patient satisfaction after anterior instrumentation of thoracic scoliosis.