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Background: End-stage renal diseases patients have a high risk of postoperative nausea and vomiting (PONV), which is multifactorial and need acute attention after renal transplantation for a successful outcome in term of an uneventful postoperative period. The study was done to compare the efficacy of palonosetron and ondansetron in preventing early and late-onset PONV in live donor renal transplantation recipients (LDRT). Methods: The prospective randomized double-blinded study was done on 112 consecutive patients planned for live donor renal transplantation. Patients of both sexes in the age group of 18...60 years were randomly divided into two groups: Group O (Ondansetron) and Group P (Palonosetron) with 56 patients in each group by computer-generated randomization. The study drug was administered intravenously (IV) slowly over 30.ßseconds, one hour before extubation. Postoperatively, the patients were accessed for PONV at 6, 24, and 72.ßhours using the Visual Analogue Scale (VAS) nausea score and PONV intensity scale. Results: The incidence of PONV in the study was found to be 30.35%. There was significant difference in incidence of PONV between Group P and Group O at 6.ßhours (12.5% vs. 32.1%, p.ß=.ß0.013) and 72.ßhours (1.8% vs. 33.9%, p.ß

Organ transplantation has undergone remarkable revolution in the last two decades and offers a scope for survival amongst patients with end-stage organ failure. Along with availability of advanced surgical equipment and haemodynamic monitors, minimally invasive surgical techniques have emerged as options for surgery both amongst the donors and recipients. Newer trends in haemodynamic monitoring and expertise in ultrasound guided fascial plane blocks have changed the management in both donors and recipients. The availability of factor concentrates and point-of-care tests for coagulation have allowed optimal and restrictive fluid management of patients. Newer immunosuppressive agents are useful in minimising rejection following transplantation. Concepts on enhanced recovery after surgery have allowed early extubation, feeding and shorter hospital stay. This review gives an overview of the recent progress in anaesthesia for organ transplantation.

In this study, friction stir processing (FSP) is proposed for the treatment of AZ61 alloy, and an artificial neural network is built to predict and compare the experimental wear results. The effects of different processing parameters, including spindle speed (800–1200 rpm), traveling speed (5–15 mm min ^−1 ), and depth of press (0.8–1.2 mm) on the microstructural evolution, mechanical properties, and wear behavior are investigated. Microstructural analysis reveals a grain size of 14 ± 2 μ m for the FSP1 sample, with observed shifting of x-ray diffraction (XRD) peaks, indicative of texture development. Increasing spindle and traveling speeds increase the surface roughness, as observed by average roughness (Ra) values of 68.4 nm for a rotational speed of 800 rpm, traveling speed of 5 mm min ^−1 , and shoulder depth of 0.8 mm (FSP1) and 116.3 nm for rotational speed of 1200 rpm, traveling speed of 15 mm min ^−1 , and shoulder depth of 1 mm (FSP9). Microhardness values increase to 113.36 Hv for FSP1 and 79. 51 Hv for FSP9 compared to 65.92 Hv for the base material (BM) sample. The decrement in hardness from FSP1 to FSP9 can be attributed to increased heat input, resulting in coarse microstructure. Wear results show that FSP1 exhibits the lowest weight loss (0.003 g) and coefficient of friction (COF) (0.28) compared to other FSP conditions and BM samples (weight loss of 0.022 g and COF of 0.68). This work demonstrates the efficacy of friction stir processing in enhancing the wear resistance of magnesium alloys.

Haemophilia-A is a rare, X-linked recessive inherited disease affects males and females are carrier results in prolonged bleeding after minor injuries, procedures or surgery. Spontaneous or recurrent bleeding may occur in deep muscles, joints but intracranial haemorrhage can be dangerous. Women with a family history of bleeding disorder, personal history of bleeding (menorrhagia, mucous membrane, postoperative bleeding and PPH) or a prolonged activated partial thromboplastin time (aPTT) should be screened for haemophilia by measuring coagulation factor VIII level during hospital visits for these reason or antenatal care (ANC). Female heterozygote carriers may have variable presentation of bleeding due to reduced levels of clotting FVIII and may experience excessive bleeding due to gynaecologic issues, during spontaneous abortion, medical termination of pregnancy or invasive prenatal diagnostic techniques in first trimester of pregnancy, antepartum and postpartum haemorrhage in later part of gestation and after delivery.

Ischemic and reperfusion injury (IRI) occurs during organ transplantation. IRI during liver transplantation is well studied and established; results in coagulopathy due to release of heparin-like substances and platelet trapping. During renal transplantation, similar IRI phenomenon occurs, and thromboelastography (TEG) can be used to detect and manage coagulopathy. The preoperative, immediate postreperfusion, and postoperative day 1 TEG was done on 25 cases of live-related renal transplantation. Coagulopathy was defined by deranged and abnormal TEG variables values from baseline and supported by the clinical presence of nonsurgical oozing and bleeding in the surgical field. The postreperfusion TEG values showed coagulopathic changes. About 64% of patients had R-time (RT) more than 12 min, 64% of patients showed maximum amplitude (MA)

Kidneys play an essential role in the regulation of water homeostasis, electrolyte balance, and acid–base balance. Anesthesiologists are frequently involved in the perioperative care of patients with kidney disease in elective and emergency scenarios. Fluid therapy is a main component of resuscitation to improve cardiac output, blood pressure, and perfusion pressure. This sometimes comes at a cost of increased risk of tissue edema due to fluid overload. Both during the transplant and nontransplant surgeries, the use or choice of fluid may influence the biochemical environment or homeostasis of human body and clinical outcomes. In this narrative review, we address the electrolyte and acid–base changes in renal disease, pharmacology of fluids, hemodynamic monitoring, and their applications.

Emergency Medicine (EM) is a fast upcoming medical speciality wherein patients presenting with emergent life-saving medical and surgical problems are managed. Emergency physicians are first-line providers of emergency care. They diagnose important clinical conditions even before completing patient assessment, order investigations, interventions, resuscitation and treatment for life-threatening acute conditions. There are several interesting sub-specialisations of EM like trauma care, disaster medicine, toxicology, ultrasonography, critical care medicine, hyperbaric medicine, etc. In some countries, the speciality of EM is a popular choice among medical students; whereas in some other countries, the speciality is now evolving. In India, the speciality is growing fast; Nonetheless, the National Medical Commission has made the existence of the department of EM compulsory in all medical colleges in India from the session of 2022-23. Anaesthesiologists suit the speciality of EM because they have quick decision making skills and swift reflexes as well as diverse knowledge and skills in the fields of critical care, resuscitation and pain management. This article written by anaesthesiologists working in the field of EM, attempts to guide the postgraduate students wanting to take up a career in EM.

Introduction: Prolonged mechanical ventilation in postoperative obstetric patients is an important cause of morbidity and mortality. Choosing intravenous sedation for these patients is challenging, as many of these drugs have unique benefits and adverse effects.There are several options are available like benzodiazepines, propofol, alfa-2 agonist, opioids and ketamine. Usually, a combination of sedatives are used to avoid dose dependent adverse effects. Aim: To evaluate the combination of Ketamine-Dexmedetomidine (KD) and ketamine-propofol for sedation in mechanically ventilated obstetric patients to compare haemodynamic changes. Secondary objectives to assess adverse effects if any, additional opioid (fentanyl) requirement and total length of intensive care unit stay. Materials and Methods: This randomised clinical study was conducted at King George’s Medical University, Lucknow, Uttar Pradesh, India, from May 2018 to August 2019. Total 67 obstetric patients, between 18-45 years of age, requiring postoperative ventilatory support, were included in the study. For sedation, 33 patient received ketamine-dexmedetomidine (group I) combination and 34 patients received ketamine-propofol (group II) combination upto 12 hours of ventilatory support. Target of sedation was to obtain Ramsay sedation scoring between 3-4. Mean Arterial Pressure (MAP) was measured at 0.5 hour, one hour, two hours, four hours, and at every two hourly till 12 hours. Pain was assessed using adult non verbal pain score. Adverse effects (tachyarrhythmia, agitation and hypersalivation) were noted. Total length of Intensive Care Unit (ICU) stay was also recorded. Results: Age of patients enrolled in the study ranged from 20 to 37 years, the mean age being 27.09±4.61 years. At baseline mean arterial pressure of patients of group I (103.82±19.26 mmHg) was higher than that of group II (96.74±13.49 mmHg) (p-value=0.085). For the rest of the periods of observation, from 0.5 hour to 14 hour, the MAP of group I remained higher as compared to group II. On intragroup comparison, group II had more fluctuation in MAP than group I. Additional requirement of fentanyl was significantly high in Group II, as compared to group I (32.4% vs 12.1%). Mean duration of ICU stay was higher in group II, as compared to group I (30.44±7.26 hours vs 22.91±4.03 hours). Conclusion: Ketamine-dexmedetomidine is a better combination for sedation in postoperated obstetric patients on mechanical ventilation than ketamine-propofol as it provides stable haemodynamics, significantly lesser opioid requirement and total length of ICU stay.

Background: Laparoscopic live-donor nephrectomy (LLDN) produces reduced donor's pain, early recovery, and a better cosmetic compared to open surgeries. We compared the analgesic efficacy of ropivacaine and levobupivacaine in unilateral ultrasound-guided transversus abdominis plane block (UTAPB) and port-site infiltration (PSI) in LLDN. Patients and Methods: The 120 donors, American Society of Anesthesiologists I-II, of either sex were randomly divided into two groups. The ropivacaine (Group-R = 60 patients given 20 ml of 0.2%) or levobupivacaine (Group-L = 60 patients, 20 ml, 0.25%) in unilateral UTAPB and 10 ml of either drug for PSI at the end of the surgery. All patients received intravenous (IV) patient-controlled analgesia pump (fentanyl) and IV paracetamol 1 g up to 48 h of study duration. Seventy-five milligram IV diclofenac was used as rescue analgesia. The duration of analgesia, time to the first requirement, and number of times rescue analgesia, total amount of fentanyl consumed and pain score Visual Analog Scale noted. Results: In UTAPB, the duration of sensory block in the levobupivacaine group was significantly longer to the ropivacaine group, 12.70 + 7.12 versus 10.55 + 6.64 h (P = 0.090), with lesser rescue analgesic requirement 37 versus 49 (of 60 patients) and lesser total fentanyl consumption 57.50 ± 53.54 mg versus 82.50 ± 65.63 mg. The first-time rescue analgesic delayed, 80.25 ± 137.78 versus 53.67 ± 79.85 min and a number of times rescue analgesic used significantly lesser in the levobupivacaine group 0.87 ± 0.84 versus 1.15 ± 0.92, with better patient satisfaction. Conclusion: Both the levobupivacaine and ropivacaine are effective in UTAPB for the management of postoperative pain after LLDN. The duration of sensory block was longer, total opioid consumption, and rescue analgesic requirement use were significantly lesser in the levobupivacaine group.

Background: Optimal intra-operative fluid therapy in renal transplantation (RT) is essential to ensure adequate graft function while preventing fluid overload related complications. This RCT was to compare the intraoperative goal directed fluid therapy (GDFT) based either on corrected flow time (CFT), measured by trans oesophageal Doppler (TED) or on the stroke volume variation (SVV), by FloTrac in patients undergoing living donor RT. Methods: This prospective, randomised controlled trial (RCT) was done on 60 end stage renal disease (ESRD) patients, American Society of Anaesthesiologists(ASA) grade III–IV, age 18 to 65 years of either sex, scheduled for living donor RT under general anaesthesia. They were randomly divided into two groups: TED group (n = 30) and FloTrac™ group (n = 30) and administered GDFT, based upon CFT (TED) and SVV (FloTrac™). The primary outcome was to compare the total fluid and number of fluid boluses administered intraoperatively, while the secondary outcomes were to compare any postoperative complications due to fluid overload and allograft function, assessed by serial serum creatinine levels up to 90 days postoperatively. Results: The mean total intra-operative fluid [3991.67 ± 856.32 vs. 3543.33 ± 1131.35, P = 0.089] and the amount of fluid administered per kg body weight per hour [13.32 ± 4.67 vs. 11.82 ± 4.76, P = 0.222] were lesser in the FloTrac compared to TED group, though not statistically significant. However, the postoperative incidence of allograft dysfunction, including rejection (P = 0.743) and acute tubular necrosis (ATN) (P = 0.999), and other complications (P = 0.643) were comparable. Conclusions: Both TED and FloTrac devices can be used effectively to guide GDFT in RT, However, lesser total fluid was required in the FloTrac group, which may lead to a lesser number of fluid-related postoperative complications.

Background and Aims: Postoperative pain following renal transplantation is moderate to severe. Quadratus lumborum block (QLB) is a new block that can provide effective analgesia following abdominal and retroperitoneal surgeries. This study aimed to evaluate the analgesic efficacy of QLB for postoperative analgesia in patients undergoing renal transplantation. Methods: Patients were randomised into two groups of 30 each. In group A (block group), 20 mL of 0.25% bupivacaine and group B (placebo group), 20 mLof normal saline were injected. In the postoperative room, an intravenous patient controlled analgesia (IVPCA) pump with fentanyl was started in both the group. The postoperatively recorded parameters were numerical rating scale (NRS) pain score at rest and on movement and coughing, total fentanyl consumption, sedation score, postoperative nausea vomiting, limb weakness, paralytic ileus, and any other block-related complication. Data were analysed using SPSS software version 22.0. Categorical data were analysed using the Chi-square method. Student t test or Mann–Whitney U test was applied for the continuous data. Numerical data with normal distribution were displayed as mean (standard deviation), abnormal distribution was displayed in the median (interquartile range) values, and as a percentage for categorical variables. Results: Fentanyl consumption, numerical rating score, and sedation score were significantly less in group A when compared to group B at 1, 4, 8, 12, and 24 h (P < 0.001). Conclusion: Type-1 QLB significantly reduces fentanyl consumption and NRS pain score at 1,4,8,12, and 24 h in the postoperative period in renal transplant recipients.

Effect of multi-directional forging (MDF) on wear properties of Mg–Zn alloys (with 2, 4, and 6 wt% Zn) is investigated. Dry sliding wear test was performed using pin on disk machine on MDF processed and homogenized samples. Wear behavior of samples was analyzed at loads of 10 N and 20 N, with sliding distances of 2000 m and 4000 m, at a sliding velocity of 3 m/s. Microstructures of worn samples were observed under scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and x-ray diffraction (XRD) and the results were analyzed. Mechanical properties were evaluated using microhardness test. After 5 passes of MDF, the average grain size was found to be 30 ± 4 µm, 22 ± 3 µm, and 18 ± 3 µm, in Mg–2%Zn, Mg–4%Zn, and Mg–6%Zn alloys, respectively, with significant improvement in hardness in all cases. Wear resistance was improved after MDF processing, as well as, with increment in Zn content in Mg alloy. However, it decreased when the load and the sliding distance increased. Worn surface exhibited ploughing, delamination, plastic deformation, and wear debris along sliding direction, and abrasive wear was found to be the main mechanism. Keywords: Multi-directional forging, Mg–Zn alloy, Microhardness, Wear, Coefficient of friction

Background and Aims: Catheter-related bladder discomfort (CRBD) has started to gain recognition as a problem in early postoperative care. Dexmedetomidine reduces bladder contractility via M3 muscarinic receptor antagonism and α-2 receptor agonism, apart from its concomitant therapeutic benefits, such as sedation and sympatholysis, in a postoperative period. We, therefore, evaluated the efficacy of dexmedetomidine in reducing incidence and severity of CRBD. Material and Methods: This prospective, randomized, double-blind, placebo-controlled trial done on 110 voluntary kidney donors for live related kidney transplantations were planned for laparoscopic donor nephrectomy. The donors were of ages 18–60 years, American Society of Anesthesiologists physical status I and II of either sex. The control group received 20 ml normal saline (NS) intravenous (IV) infusion over 15 min, whereas the dexmedetomidine group received dexmedetomidine 1 μg/kg made in 20 ml NS as IV infusion over 15 min. The incidence and severity of CRBD were recorded as primary endpoints up to 12 h in early postoperative period. The incidence of bladder discomfort was analysed by Fisher's exact test and severity of bladder discomfort by Mann Whitney U test. Results: The incidence of CRBD on arrival at postoperative care unit was 18% in dexmedetomidine group compared to 42% in control group (P < 0.05). The incidence and severity of CRBD reduced in dexmedetomidine group at 0, 2, and 4 h compared with control group (P < 0.05). Conclusions: Dexmedetomidine 1 μg/kg administered IV to patients 30 min before extubation reduces the incidence and severity of CRBD in early postoperative settings with no adverse effects.

Background and Aims: Post-operative nausea and vomiting (PONV) is highly distressing and unpleasant symptom. Dexamethasone and palonosetron are effective antiemetics with minimal side effect profile. This study compares the efficacy of palonosetron or dexamethasone alone and their combination (palonosetron plus dexamethasone) for prevention of PONV after laparoscopic cholecystectomy. Methods: This prospective, randomised, double-blind trial was done on 187 adults, American Society of Anesthesiologists Grade I and II patients, aged 18–75 years undergoing laparoscopic cholecystectomy. They were allocated to three groups which were to receive either of the three treatment regimens: dexamethasone 8 mg (Group D, n = 57), palonosetron 0.075 mg (Group P, n = 66) or dexamethasone 8 mg plus palonosetron 0.075 mg (Group PD, n = 64). The primary outcome was incidence of PONV in 24 h and the secondary outcome was a number of rescue antiemetic required. One-way ANOVA test was used to compare the means amongst three groups. To compare the proportions in the groups, Chi-square test/Fisher's exact test/Two proportions Z-test was applied as appropriate. Results: Overall incidences of PONV in the study 24 h postoperatively were 23.4% in PD, 27.2% in P group and 56.14% in D group (P < 0.001). Requirement of rescue antiemetic was more in dexamethasone group than other two groups (PD = 1 time, P = 1.38 times and D = 1.5 times). Conclusion: Palonosetron alone and palonosetron-dexamethasone combination were equally effective in the prevention of PONV. Dexamethasone alone was least effective amongst the three groups. There is no difference between palonosetron and palonosetron-dexamethasone for PONV prevention.

The acute blood transfusion reactions are responsible for causing most serious adverse events. Awareness about various clinical features of acute and delayed transfusion reactions with an ability to assess the serious reactions on time can lead to a better prognosis. Evidence-based medicine has changed today′ s scenario of clinical practice to decrease adverse transfusion reactions. New evidence-based algorithms of transfusion and improved haemovigilance lead to avoidance of unnecessary transfusions perioperatively. The recognition of adverse events under anaesthesia is always challenging. The unnecessary blood transfusions can be avoided with better blood conservation techniques during surgery and with anaesthesia techniques that reduce blood loss. Better and newer blood screening methods have decreased the infectious complications to almost negligible levels. With universal leukoreduction of red blood cells (RBCs), selection of potential donors such as use of male donors only plasma and restriction of RBC storage, most of the non-infectious complications can be avoided.

Wolff-Parkinson-White syndrome (WPW) is an uncommon cardiac disorder having an aberrant pathway between atria and ventricles. We are reporting a known case of WPW syndrome for hysterectomy under combined spinal epidural anaesthesia. Management of the present case is an important pearl to revisit management of WPW syndrome. The perioperative management should be tailored according to the nature of surgery and the clinical presentation of the patient.

Anisocoria is an uncommon entity in general postoperative intensive care. We present a case of a 45-year-old man suffering from severe acute pancreatitis with a past history of traumatic brain injury (TBI), who developed hypertension, bradycardia and anisocoria soon after re-exploration surgery under general anaesthesia. Computed tomography showed no new lesion. Measures directed towards reducing intracranial pressure resulted in amelioration in about 12 h. The possible role of old TBI in the causation of anisocoria during general anaesthesia and resuscitation has been explored in this report.

Cardiovascular disease (CVD) is an important comorbidity of chronic kidney disease, and reducing cardiovascular events in this population is an important goal for the clinicians who care for chronic kidney disease patients. The high risk for CVD in transplant recipients is in part explained by the high prevalence of conventional CVD risk factors (e.g., diabetes, hypertension, and dyslipidemia) in this patient population. Current transplant success allows recipients with previous contraindications to transplant to have access to this procedure with more frequency and safety. Herein we provide a series of eight patients with dilated cardiomyopathy with poor ejection fraction posted for live donor renal transplantation which was successfully performed under regional anesthesia with sedation.

Gabapentin, a structural analogue of gamma-amino butyric acid, has been used as an anticonvulsant and antinociceptive drug but its mode of action is not well understood. Gabapentin has been demonstrated in various clinical studies to be of value as preemptive analgesic, and has shown to reduce the postoperative requirement of opioids. This study was conducted to evaluate the role of gabapentin as preemptive analgesic in patients undergoing total abdominal hysterectomy. Fifty patients with ASA grade I and II were assigned to receive 300mg gabapentin or placebo 2hr before surgery. Surgeries were conducted under combined spinal epidural anaesthesia. Post operatively, pain was assessed by visual analogue score (VAS) at 2, 4,8,12 and 24hrs. Patients were given epidural boluses of bupivacaine (0.125%) on demand. Total numbers of epidural boluses during first 24 hrs postoperatively were noted. Patients in gabapentin group have significantly lower VAS score 2, 4,8,12 and 24hrs postoperatively as compared to the placebo (1.3 ± 1.3, 2.3±1.4, 3.2 ± 2.1, 1.8 ± 1.7, 1.2 ± 1.3 vs. 2.1 ± 1.7, 3.2±1.6, 4.4 ± 1.2, 3.3 ± 1.1, 2.1 ± 1.2 respectively; P < 0.05). Total numbers of epidural boluses were significantly less in gabapentin group (3.4±1.6 vs. 5.6±2.1, P< 0.05). We conclude that preemptive use of gabapentin 300mg orally significantly reduces the number of postoperative epidural bolus requirement and postoperative pain in patients undergoing total abdominal hysterectomy under combined spinal epidural anaesthesia.