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Interventional pain management bears a significant risk of hemorrhagic complications. This risk increases in patientswith coagulation disorders and those taking anticoagulant therapy. The population of the latter is growing, and manynew drugs and new treatment regimens have become widespread in recent years. The latest guidelines on the periproceduraluse of anticoagulant therapy also apply to regional anaesthesia techniques for the treatment of chronicand acute pain. However, despite the existence of guidelines and recommendations, decision-making difficultiescan still be encountered in the practice of interventional pain management. The presentation includes a summaryof existing recommendations for the prophylactic use of anticoagulants and antiaggregants in clinical practice inthe periprocedural period. Also included is a discussion of selected concerns regarding their use in the practice ofinterventional pain management.

The stress of surgery is characterized by an inflammatory response with immune suppression resulting from many factors, including the type of surgery and the kind of anesthesia, linked with the drugs that are used and the underlying disease of the patient. The trauma of surgery triggers a cascade of reactions involving the immune response and nociception. As strong analgesics, opioids provide the analgesic component of general anesthesia with bi-directional effect on the immune system. Opioids influence almost all aspects of the immune response in regards to leukocytes, macrophages, mast cells, lymphocytes, and NK cells. The suppressive effect of opioids on the immune system is limiting their use, especially in patients with impaired immune response, so the possibility of using multimodal anesthesia without opioids, known as opioid-free anesthesia (OFA), is gaining more and more sympathizers. The idea of OFA is to eliminate opioid analgesia in the treatment of acute pain and to replace it with drugs from other groups that are assumed to have a comparable analgesic effect without affecting the immune system. Here, we present a review on the impact of anesthesia, with and without the use of opioids, on the immune response to surgical stress.

Objective Introduction: Medical marijuana is used in many diseases. There are not many studies on society's knowledge about use of medical cannabis. This study aimed to check the level of knowledge about aspects of medical cannabis among students of medical and medical emergency degree courses. Authors emphasize the need of knowledge about law regulations, composition, properties or contraindications of medical cannabis among students of medical universities, as they are fundamental resource of information for patients and any other person who is not included in medical world. Patients and methods Material and methods: An original questionnaire containing 29 questions was created. There were 311 randomly selected students from medicine (N=52), nursing (N=117), midwifery (N=66), paramedicine (N=54) and dietetics (N=22). Results of the study were evaluated with help of statistical test ANOVA and student t-test. The Bioethical Committee at the Medical University of Warsaw took note of the information about the study and issued a statement with reference number AKBE/35/2020. Results Results: The correctness of answers among students was on the average level of 24.06%. In the survey, the highest percentage of correct answers was characteristic for medicalstudents, achieving about 35.0% effectiveness, then medical emergency students answered correctly in 26.9%, nursing - 23.7%, obstetrics - 21.5%, dietetics - 13.2%. Among all groups, the answer was "I don't know": medical students - 44.0% of all answers, emergency medical services - 53.2%, nursing - 56.2% obstetrics - 62.4%, dietetics - 73.9%. The value of correct answers was assessed as statically valid in the ANOVA test; at the significance level p = 0.05 (F-ratio: 11.32004; p = 0.0001). In the t-student test, it was proved that the ANOVA test result relates to the variance of responses between all study groups except dietetics. Conclusion Conclusions: The level of knowledge of medical students is insufficient to inform patients about possibility of using medical marijuana in their diseases. The low level of knowledge is conditioned by little time at the university devoted to medical marijuana. Education of students about medical marijuana should be increased.

Background The aim of the study was to check if a situation of extreme and traumatizing stress, such as living kidney donation, would result in changes in the quality of the donor's life: whether a posttraumatic growth should occur, and if the donor would develop a strategy to handle strong and uncommon stress, known as resilience. Methods The study was conducted on 23 living kidney donors aged 25 to 63, who were examined 3 days before the donation and 6 months after. The study was conducted using the following tools: self-prepared questionnaires for donors before and after donations and validated questionnaires Cognitive Emotion Regulation (PRE), Posttraumatic Growth Inventory (PTGI-R), and Resilience Scale Inventory (SPP25). Results The results of the study proved that situations of extreme stress resulted in an increase of resilience. It was found that resilience was a moderator in the adaptation to extreme stress. A number of positive changes, known as posttraumatic growth, were noted. The examined patients focused on the adaptive strategies. Conclusion It may be concluded that resilience is responsible for handling situations of extreme stress. Increased ability to mobilize, stronger focus on adaptive strategies, planning, and creating perspectives are observed. An observable increase of openness for new experiences, personal competencies to handle difficulties, tolerating negative emotions, and an optimistic approach to life may be noted.

Tissue damage following injury triggers the processes of coagulation, inflammation and healing. In tissues surrounding the bone, the result of the healing process is a scar, while bone tissue has a unique ability to achieve shape, strength and pre-injury function. Bone healing is a process of regeneration rather than classic recovery. The result of this process is the formation of new, healthy bone tissue instead of a scar. Many factors can inhibit or impair the bone healing process, and their influence is critical during the stages of inflammation and angiogenesis and finally on the clinical outcome. Nonsteroidal anti-inflammatory drugs (NSAIDs) play an essential role associated with their analgesic potency and anti-inflammatory effects. NSAIDs are also the most often used drugs in patients who require pain control and inflammation reduction due to musculoskeletal diseases or injures. Although their analgesic effect is well documented, NSAIDs also interfere with bone healing; therefore, the relative benefits and disadvantages connected with their administration should be taken into consideration. Despite the negative effect, NSAIDs have beneficial properties, but their clinical benefits in relation to dose and time of use are still unclear. Therefore, in this review, we focus on bone healing with relation to the impact of NSAIDs.

In this review, we discuss the current data about the anatomy and function of bone tissue with particular regard to influence of prostaglandins. Bone tissue dynamics are characterized by a constant remodeling process that involves all bone tissue cells. The communication between bone component cells and other organs is necessary for bone remodeling equilibrium and confirms the dynamic character of bone tissue. Remodeling is also a vital element of healing processes and in adapting bone tissue to stress responses. Therefore, in our review we present the role and significance of bone cells and signaling pathways enabling maintenance of bone homeostasis and remodeling process stability. Cyclooxygenase (COX) is a crucial enzyme in the production of prostaglandins and thromboxane. We focus on the role of COX isoenzymes with highlighting their connection with bone formation, resorption and repair. Prostaglandins are known as arachidonic acid metabolites acting through specific membrane receptors and play an important role in the regulation of osteoblast and osteoclast functions. Prostaglandin PGE2 with its four defined receptors (EP1R, EP2R, EP3R and EP4R) is crucial to maintain balanced bone turnover. Their stimulatory or inhibitory effects appear to depend on different structure-activity relations and signaling pathways. We have described the role of these receptors in bone metabolism and healing. We conclude that the activity of prostaglandins in bone tissue is defined by maintaining bone remodeling balance and its reactions to humoral mediators and mechanical stress. Most data confirm that among prostaglandins, PGE2 takes part in all processes of trauma response, including homeostasis, inflammation and healing, and plays a key role in bone physiology.

The aim of this study was to determine the role of resilience and alexithymia in the post-traumatic growth as a response to extreme stress in patients after kidney transplantation and to determine whether there are differences in the level of posttraumatic growth in patients after living and cadaveric donor kidney transplantation. The relationships between these variables were also evaluated. The questionnaire survey of 91 kidney recipients took place in 2018 and 2019. The following tools were used: authorial post-transplant questionnaire for recipients and validated questionnaires, Post Traumatic Growth Inventory (PTGI-R), Resilience Coping Scale Questionnaire, and Toronto Alexithymia Scale Questionnaire (TAS20). The results obtained showed significant differences between the group of kidney recipients from living donors and recipients from cadaveric donors, in terms of overall post-traumatic growth, as well as changes in self-perception and a greater appreciation for life. Post-traumatic growth in both groups was related to the level of resilience and the level of alexithymia. Resilience is an accurate predictor of posttraumatic growth in general and for each of the groups of recipients separately.

Introduction. Chronic pelvic pain syndrome occurs in 4–14% of women. Pain pathomechanism in this syndrome is complex, as it is common to observe the features of nociceptive, inflammatory, neuropathic and psychogenic pain. The common findings in women with pelvic pain are endometriosis and pelvic adhesions. Objective. Aim of the study was to test the effectiveness of pharmacological treatment and regional anesthesia techniques for pain control as the next step of treatment after the lack of clinical results of surgical and pharmacological methods normally used in the management of endometriosis and pelvic adhesions. Materials and method. 18 women were treated between January 2010 – October 2013 in the Pain Clinic of the Department of Anaesthesiology and Intensive Care at the Centre for Postgraduate Education in Warsaw due to chronic pelvic pain syndrome related to either endometriosis or pelvic adhesions. During the previous step of management, both conservative and surgical treatments were completed without achieving satisfactory results. Initial constant pain severity was 3–9 points on the Numeric Rating Scale, while the reported paroxysmal pain level was 7–10. The pharmacological treatment implemented was based on oral gabapentinoids and antidepressants, aided by neurolytic block of ganglion of Walther, pudendal nerve blocks and topical treatment (5% lidocaine, 10% amitriptyline, 10% gabapentin). Results. In 17 women, a significant reduction of both constant and paroxysmal pain was achieved, of which complete and permanent cessation of pain occurred in 6 cases. One patient experienced no improvement in the severity of her symptoms. Conclusions. The combination of pain management with pharmacological treatment, pudendal nerve blocks, neurolysis of ganglion impar (Walther) and topical preparations in cases of chronic pelvic pain syndrome seems to be adequate medical conduct after failed or otherwise ineffective causative therapy.

Here we report on the use of neurolytic block of ganglion impar (ganglion of Walther) for the management of intractable chronic pelvic pain, which is common enough to be recognized as a problem by gynecologists, likely to be difficult to diagnose and even more challenging to manage. Following failure in controlling the symptoms with pharmacological management, nine women underwent neurolysis of the ganglion impar in our Pain Clinic from 2009 to March 2013. The indication for the procedure was chronic pelvic pain (CPP) of either malignancy-related (4) or other origin (5). The Numeric Rating Scale (NRS) and duration of pain relief were employed to assess effectiveness of the procedure. Neurolysis was efficacious in patients with both malignancy-related CPP and CPP of non-malignant origin. Reported relief time varied from 4 weeks to 3 years, while in 4 cases complete and permanent cessation of pain was achieved. No complications were noted.

BACKGROUND: The anatomical landmark which is used to identify the correct level for lumbar puncture is the line connecting both iliac crests. This crosses the vertebra column at the level of the L4–L5 intervertebral space or L4 vertebra. It can be difficult to determine in a group of orthopaedic patients due to chronic orthopaedic disorders, chronic pain, overweight, or difficulties with positioning for lumbar puncture. The objective of this study was to determine if identification of intervertebral space by a physical exam differs from that of an ultrasound assessment. METHODS: Adult patients scheduled for lower limb surgery under spinal block were enrolled in this study. The intervertebral space suitable for lumbar puncture was determined by physical exam by an anaesthetist in the sitting or lateral position. This was followed by a lumbar ultrasound. Primarily, a transducer was placed in paramedian sagittal view followed by transverse interlaminar view to confirm the identification of the interlaminar spaces. The ‘counting-up’ approach starting with the L5–S1 space was applied. RESULTS: One hundred and twenty two patients (122) were included in this study. Lumbar intervertebral spaces were identified by ultrasound in all cases. There was concordance of intervertebral space identification (between clinical and ultrasound examination) in 78 cases (64%). Mean deviation of inacuracy was one intervertebral space with no statistical difference among cephalad and caudal direction. There were no statistically significant differences found in terms of demographic data (sex, age, height, weight, or BMI), positioning for lumbar puncture, or intervertebral space chosen for the puncture between the concordant and the nonconcordant identification groups. The only statistically significant difference found was the difference in the years of experience of the anaesthetist performing the clinical assessment and puncture. CONCLUSIONS: The concordance rate between clinical examination and using assessment of intervertebral space identification for lumbar puncture is 64% among patients undergoing lower limb surgery. No special parameters were found which could make an anaesthetist aware that a patient is at greater risk of inadequate intervertebral space level assessment. Spinal ultrasound can reduce the incidence of inappropriate lumbar puncture level in orthopaedic patients.

Background Aprotinin, a plasmin inhibitor, had been used for reduction of intraoperative bleeding caused by hyperfibrinolysis during extensive surgery. Prophylaxis with aprotinin to limit blood loss during orthotopic liver transplantation (OLT) had been widely applied until the drug was weaned off the therapeutic list for severe complications. We compared the need for blood and blood products transfusion in patients undergoing OLT with and without the use of aprotinin. Materials and Methods A retrospective analysis was performed on 150 patients, who underwent OLT between March 2004 and August 2008 and were divided into 2 groups: the APRO group (n = 111) after induction of anesthesia was given a bolus of 500 kIU of aprotinin in a 30-minutes infusion followed by 140 kIU/h till the end of the OLT in which aprotinin was not administered, and the NON-APRO group (n = 39). Results Patients from the NON-APRO group needed significantly more units of packed red blood cells (PRBC) than the APRO group (5.53 ± 4.89 vs 3.99 ± 3.58 units; P = .037). Avoidance of aprotinin administration (β = 1.408), Child-Pugh score (β = 0.519), and duration of anhepatic phase (β = 0.03) affected the volume of transfused blood according to multiple regression analysis (P Conclusions Our study confirmed the important prophylactic role aprotinin used to have during OLT in limiting the need for blood transfusions. Further research and progress in methods of blood loss minimization and monitoring of hemostasis are needed to warrant safe liver transplantation.