Modified Robert Jones Bandage in reducing blood loss in total knee arthroplasty: A meta-analysis of randomized controlled trials.

BACKGROUND: The purpose of this meta-analysis was to assess the effects of Modified Robert Jones Bandage (MRJB) in primary total knee arthroplasty (TKA). METHODS: PubMed, EMBASE, the Cochrane Library, Web of Science, and Google Scholar were systematically searched for randomized controlled trials (RCTs). All RCTs were compared to receive either MRJB (study group) or conventional wound dressing (control group) in TKA. Statistical analysis was assessed using RevMan 5.3 software. RESULTS: A total of 5 RCTs involving 362 patients were included in the meta-analysis. No significant difference between the 2 groups was found in terms of total blood loss (Mean difference [MD], -25.41; 95% confidence interval [CI], -90.52 to 39.70; P = .44), intra-operative blood loss (MD, -13.77; 95% CI, -31.84 to 4.29; P = .14), drain blood loss (MD, 0.83; 95% CI, -30.07 to 31.72; P = .96), and transfusion rate (risk ratio, 0.95; 95% CI, 0.55-1.64; P = .86); There was also no significant difference in terms of range of motion (MD, -0.93; 95% CI, -3.64 to 1.79; P = .50), visual analog scale pain sores (MD, -0.02; 95% CI, -0.34 to 0.30; P = .90), and operative time (MD, -3.12; 95% CI, -13.42 to 7.18; P = .55), without increasing the risk of wound-related complications (risk ratio, 0.75; 95% CI, 0.27-2.08; P = .58) in both groups. No deep venous thrombosis occurred in all studies. CONCLUSIONS: The current meta-analysis of the available evidence indicates patients with MRJB had not required the additional advantage compared to the conventional wound dressing for TKA. However, more high-quality studies are needed to confirm the above conclusions. LEVEL OF EVIDENCE: Level I, therapeutic study.

Effect of Quantification of Blood Loss on Activation of a Postpartum Hemorrhage Protocol and Use of Resources.

OBJECTIVE: To determine if quantification of blood loss (QBL) would result in fewer activations of postpartum hemorrhage (PPH) protocols than visual estimation of blood loss (EBL) after cesarean birth and to track the use of related resources. DESIGN: Prospective observational trial. SETTING: A tertiary academic medical center in the midwestern United States. PARTICIPANTS: A total of 42 cases of cesarean birth. METHODS: We visually estimated blood loss during cesarean birth and quantified blood loss with colorimetric testing after the surgery. We compared EBL to QBL in four categories, from no hemorrhage to severe PPH, and documented resources used for women placed on the institutional PPH protocol by EBL who did not meet criteria for PPH by QBL. RESULTS: The median EBL was 1,275 ml (interquartile range = 1,100-1,510 ml), and the median QBL was 948 ml (interquartile range = 700-1,267 ml, p < .001). Twenty-four (57%) instances of PPH based on visual EBL would not have been classified as such based on QBL. The most frequently used resources in these cases included laboratory testing and administration of uterotonics. CONCLUSION: Use of QBL during cesarean births would have reduced the number of identified PPHs by more than 50% over visual EBL and may have reduced the resources used as part of care.

Accuracy of Visually Estimated Blood Loss in Surgical Sponges by Members of the Surgical Team.

It is important that operating room personnel monitor the correct amount of blood loss during surgery in order to properly replace lost volume. The aim of this study was to investigate the accuracy of operating room personnel in visually estimating blood loss in surgical sponges. We performed an observational study with comparative descriptive design at a university hospital including all members of the surgical team. In total, 163 observations were completed. The participants estimated the amount of blood in surgical sponges in 4 stations with varying amounts of blood and/or numbers of sponges. Data were analyzed using the Wilcoxon signed rank, Kruskal-Wallis, and Mann-Whit-ney tests. Both overestimations and underestimations occurred. Underestimations dominated and tended to increase with major amounts of blood. Operating room personnel miscalculated the amount of blood by a median value of 30% regardless of profession, years of experience, and self-assessed ability about visual estimation. This study highlights that assessments of patients' conditions can be partially based on methods often demonstrated to be inaccurate. Inaccurate visual estimation of blood loss might endanger patient safety.

Tourniquet and closed-suction drains in total knee arthroplasty. No beneficial effects on bleeding management and knee function at a higher cost.

BACKGROUND: Blood loss is a major concern in total knee arthroplasty (TKA) along with postoperative knee function. The present study explores the impact of tourniquet (T) and closed-suction drains (D) on these parameters in TKA. MATERIALS AND METHODS: A prospective study was conducted on 111 patients admitted for TKA. Subjects were divided into three groups: 36 in group T+D+, 42 in T-D+ and 33 in T-D- (where T+: prolonged tourniquet use, T-: cementation-only tourniquet, D+: closed-suction drain use, and D-: no drain). RESULTS: No statistically significant differences were observed among the three groups(T+D+, T-D+ and T-D-) for total blood loss, hemoglobin levels over the first six postoperative weeks and blood transfusion rate. Intraoperative bleeding was significantly reduced in T+ subjects compared to T- subjects (100±88mL vs. 279±235mL respectively, P<0.001), yet length of surgery was unaffected. Hidden blood loss was lower in D+ subjects compared to D- subjects (1161±554mL vs. 1667±554mL respectively, P<0.001), but was offset by the blood loss in the drains. Early postoperative range of motion (ROM) was superior in group T-D- compared to group T+D+. Nevertheless, postoperative week 6 ROM was similar between the 3 groups as was patient-reported postoperative pain. A patient with a drain represents 35min of extra nursing time and a total cost of $31.87 CAD. CONCLUSIONS: Whole-course tourniquet and closed-suction drain use in TKA do not yield beneficial results while increasing costs. Their use is therefore deemed unnecessary. LEVEL OF EVIDENCE: III (case control prospective study).

Tranexamic Acid in Anesthetic Management of Surgical Procedures.

Blood loss during surgical procedures poses a grave risk to the patient, but transfusion is costly and associated with adverse outcomes. Antifibrinolytics, however, offer an economical and effective means of decreasing blood loss associated with surgical procedures. Tranexamic acid (TXA) is an antifibrinolytic that blocks lysine-binding sites of fibrinogen and fibrin, preventing the breakdown of existing clots. This journal course reviews extensive research demonstrating that antifibrinolytics such as TXA decrease blood loss and in some studies reduce allogeneic transfusion requirements. In addition, this journal course addresses concerns that use of antifibrinolytics increases embolic events, reviews research that demonstrates TXA does not increase the incidence of vascular occlusive events, and describes methods of TXA use in cardiac and orthopedic surgical procedures, neurosurgery, and obstetrics. The Certified Registered Nurse Anesthetist should consider the possibility, on a case-by-case basis, of using TXA in surgical procedures to reduce blood loss with minimal adverse effects.

Case study: a woman who hemorrhages 24 hours post tonsillectomy.

PURPOSE: This case study focused on the emergency nursing care of a 32-year-old female, less than 24 hours post operatively from a tonsillectomy. The purpose is to identify the priority nursing diagnoses, patient outcomes, and nursing interventions that guided nursing care during this emergency. DATA SOURCES: Data were obtained through the author's clinical practice in emergency nursing and literature sources. DATA SYNTHESIS: NANDA International Classification, the Nursing Outcomes Classification, and the Nursing Interventions Classification were used to identify the appropriate nursing diagnosis, patient outcomes, and nursing interventions of an adult with a postoperative hemorrhage. CONCLUSIONS: This case study provides emergency nurses and students with the pertinent nursing diagnoses, patient outcomes, and nursing interventions for persons with post-op hemorrhage after tonsillectomy.

Implementing methods to improve perioperative hemostasis in the surgical and trauma settings.

Achieving perioperative hemostasis is vital to surgical success. Inadequate control of bleeding is associated with serious adverse outcomes, including extended duration of surgery, unanticipated blood transfusions, shock, infection, impaired wound healing, longer hospital stays, and mortality. Appropriate clinical management of bleeding in the surgical and trauma settings requires careful collaborative planning and coordination by the entire perioperative team. Perioperative nurses, because of their strategic role in patient care, must be familiar with risk factors for excessive bleeding and the fundamental roles of hemostatic agents, environmental temperature, and blood transfusion in controlling bleeding in the surgical patient. Knowledge of the characteristics, safety, efficacy, and costs of available topical hemostatic agents promotes their appropriate selection in the OR. By incorporating evidence-based approaches into practice, perioperative nurses can support effective intraoperative hemostasis, thereby improving patient outcomes.

Evaluation of postoperative blood salvage and re-transfusion in a total knee arthroplasty patient population: a retrospective study.

Patients at risk for postoperative anemia may benefit from blood salvage and retransfusion. This study is a retrospective chart review of 148 total knee arthroplasty patients to determine the impact of the procedure on hematocrit and hemoglobin.

Blood conservation in a congenital cardiac surgery program.

Bloodless surgery programs are being instituted because of increasing public concerns about blood transfusions and the need to accommodate some patients' religious beliefs. Patients' desires to forego transfusion must be identified during the preoperative screening process and subsequently reflected on the surgical consent. Patients are managed preoperatively with erythropoietin and dietary supplements. The surgical team employs a variety of intraoperative and postoperative blood conservation techniques to help avoid the need for transfusion. A retrospective review of congenital cardiac procedures in a blood conservation program confirmed that bloodless cardiac surgery is effective.

Finding alternatives to blood transfusion.

Here, you'll find out how to reduce your patient's need for donated blood and discover what's new in the search for an artificial blood substitute.

Coronary angiography observations: evidence-based or ritualistic practice?

OBJECTIVE: The purposes of this study were to describe the incidence and occurrence of femoral artery bleeding during the first 6 hours after coronary angiography and to determine whether there is a relationship between current postangiogram observation protocols and the detection of complications. DESIGN: This was a prospective descriptive study. SETTING: The study was conducted in 3 university hospitals in Melbourne, Australia. PATIENTS: Subjects included 55 patients representing the complication rate of 1075 patients, mean age 61 years (SD, 12), 69% male. RESULTS: About 5.1% of patients had 1 or more incidents of bleeding requiring manual compression. In 4.2% of patients, bleeding occurred within 6 hours of angiography. Bleeding occurred a median of 2.02 hours (Q1 = 45 minutes, Q3 = 4.31 hours) after angiography. Patients without pressure bandaging bled a median of 1.32 hours (Q1 = 36.50 minutes, Q3 = 2.59 hours) after angiography. Patients with pressure bandaging bled a median of 4.75 hours (Q1 = 2.25 hours, Q3 = 7.28 hours) after angiography. In 40.6% of cases, bleeding was detected through the patient's call for assistance, and in 59.4% of cases nurses noted bleeding while checking the puncture site. Postcatheter observations were recorded 23.70 (SD, 14.60) minutes before the bleeding incident. There were no significant changes in vital signs, systolic blood pressure (P >.05), diastolic blood pressure (P >.05), or pulse (P >.05) before or during a bleeding episode. All were within normal parameters. No neurovascular assessment anomalies were detected. CONCLUSION: The use of pressure bandaging has a significant effect on the incidence and pattern of bleeding. Routine vital sign measurement has no relevance in detecting local complications after angiography. The most significant complication is bleeding that requires manual compression. Detection is through frequent puncture site observation and patient recognition and communication.

Accuracy of blood loss determination by health care professionals.

Patients undergoing surgery will likely experience some degree of blood loss. There is much literature examining effects of blood loss, but little was found that examined accuracy of estimation of blood loss. The research question for this study was: How accurate are surgical health care professionals in their estimations of blood loss? This study was a pre-experimental between-subject design that used a convenience sample of 85 volunteers who worked in the surgical and postsurgical units of a rural southern 450-bed hospital. The participants viewed 1 of 3 randomly chosen samples of laparotomy pads with variable amounts of blood and saline. Only the researchers knew the exact amount contained on the pads. The variables that were examined and were compared included the professional group, years of experience in surgery or the postanesthesia care unit (PACU), and their estimation of blood loss. Their estimation of blood loss was compared with the actual amount of blood to determine whether one group was more accurate than another statistically and whether increasing years of experience improved accuracy. The statistical tests used were simple and multiple regressions.

The swab rack--an outdated ritual.

The risk of Theatre Staff becoming infected from blood borne viruses such as HIV and Hepatitis B is steadily increasing. Sir David Cox's report (1988) predicted that the number of people infected with HIV by the end of 1987 would be between 20,000 and 50,000. Although these predictions are now thought to be more accurately estimated between 12,000 and 26,000, the number of people developing Aids is still expected to rise at an alarming rate. The precautions taken within the Theatre Department to reduce this risk are becoming transparently inadequate. It is no longer sufficient--or acceptable practice--to only be vigilant in avoiding blood contamination if the patient falls within a certain 'high risk' category. A happily married, middle aged woman may also be a virus carrier, particularly considering the long dormancy the HIV virus can exhibit before being detectable. It must be assumed that everyone is a potential carrier and the same precautionary measures taken for every patient, regardless of their past history, or present appearance.