Revising a laparoscopic appendicectomy set to reduce reliance on disposable surgical instruments: supporting the transition to sustainable surgical practice.

INTRODUCTION: After excluding anaesthetic gases, around one-third of carbon emissions from surgical procedures are from consumables. This sustainable quality improvement project revised the laparoscopic appendicectomy surgical set at a large teaching hospital, with the aim of reducing unnecessary usage of disposable laparoscopic ports and surgical instruments. METHODS: A prospective audit of 25 consecutive laparoscopic appendicectomies (5% of annual appendicectomies performed at the Trust) was conducted to assess use of disposable instruments. The financial and environmental costs of the five most commonly used disposable instruments were calculated and annual cost of current practice determined. A revised surgical set was created to include additional reusable instruments and new reusable ports. A reaudit of disposable surgical instrument usage was conducted and the financial and environmental impact of the new set compared with the results from the initial audit. RESULTS: A total of 109 disposable instruments were opened in 25 appendicectomies, costing an estimated £49,656 and 692kg CO2 equivalent (CO2e) annually. Following rollout of the revised appendicectomy set, there was a significant reduction in disposable instrument usage (median four versus one instruments per case, p<0.00001). The revised set is predicted to reduce annual disposable instrument usage from 2,180 to 705 instruments (68% reduction), saving £219,452 and 3.02 tonnes CO2e over the estimated seven-year lifecycle of the reusable instruments. CONCLUSIONS: Updating a laparoscopic appendicectomy set to include additional/new reusable instruments can lead to a marked reduction in disposable surgical instrument usage. This results in significant projected financial and CO2e savings.

Telephone assessment of new hernia referrals-is it possible?

PURPOSE: Utilisation of remote clinics is increasing in healthcare settings worldwide. During the height of the COVID pandemic, our UK-based teaching hospital has trialled telephone assessment for new patients presenting with primary hernias. Selected cases are listed for elective repair of primary hernia direct from telephone clinic assessment. In March 2021, after this process had been in place for 13 months, departmental triage criteria were introduced, allocating patients to initial assessment in Face to Face or Telephone Clinics. Here, we evaluate the effectiveness of telephone assessment, with specific attention to 'Day of Surgery' cancellation. We also assess the effect of our triage criteria on rate of 'Day of Surgery' cancellation. METHODS: Departmental diaries were studied retrospectively to identify patients listed for hernia repair between February 2020 and February 2022. Data were obtained from clinic letters, discharge paperwork and operating lists, as well as from management teams. Fishers Exact test was used to compare groups seen either face to face or remotely as well and pre- and post-intervention. RESULTS: 325 patients were listed for hernia repair, 56 after telephone assessment. 6 (11%) of those listed from telephone clinic were cancelled on the day of surgery, compared with 34 (13%) of those seen face to face. With triage criteria in place, listing from telephone clinic increased significantly from 14 to 27%. Overall day of surgery cancellations reduced from 13 to 9%. Rate of day of surgery cancellation in those assessed in telephone clinic reduced from 12 to 9%. CONCLUSIONS: There is no significant difference between day of surgery cancellations after face to face or telephone clinic assessment. Triage criteria for telephone assessment appear to increase the numbers being listed after remote clinics. This did not significantly impact the number of day of surgery cancellations.

Seasonal variation in the management and outcomes of cardiac arrest complicating acute myocardial infarction.

BACKGROUND: There are limited data on the influence of seasons on the outcomes of acute myocardial infarction-cardiac arrest (AMI-CA). AIM: To evaluate the outcomes of AMI-CA by seasons in the United States. DESIGN: Retrospective cohort study. METHODS: Using the National Inpatient Sample from 2000 to 2017, adult (>18 years) admissions with AMI-CA were identified. Seasons were defined by the month of admission as spring, summer, fall and winter. The outcomes of interest were prevalence of AMI-CA, in-hospital mortality, use of coronary angiography, percutaneous coronary intervention (PCI), hospital length of stay, hospitalization costs and discharge disposition. RESULTS: Of the 10 880 856 AMI admissions, 546 334 (5.0%) were complicated by CA, with a higher prevalence in fall and winter (5.1% each) compared to summer (5.0%) and spring (4.9%). Baseline characteristics of AMI-CA admissions admitted in various seasons were largely similar. Compared to AMI-CA admissions in spring, summer and fall, AMI-CA admissions in winter had slightly lower rates of coronary angiography (63.3-64.3% vs. 61.4%) and PCI (47.2-48.4% vs. 45.6%). Compared to those admitted in the spring, adjusted in-hospital mortality was higher for winter {46.8% vs. 44.2%; odds ratio (OR) 1.08 [95% confidence interval (CI) 1.06-1.10]; P < 0.001}, lower for summer [43% vs. 44.2%; OR 0.97 (95% CI 0.95-0.98); P < 0.001] and comparable for fall [44.4% vs. 44.2%; OR 1.01 (95% CI 0.99-1.03); P = 0.31] AMI-CA admissions. Length of hospital stay, total hospitalization charges and discharge dispositions for AMI-CA admissions were comparable across the seasons. CONCLUSIONS: AMI-CA admissions in the winter were associated with lower rates of coronary angiography and PCI, and higher rates of in-hospital mortality compared to the other seasons.

Clinical and treatment characteristics determining therapeutic outcome in patients undergoing autologous non-cultured outer root sheath hair follicle cell suspension for treatment of stable vitiligo.

BACKGROUND: Autologous non-cultured outer root sheath hair follicle cell suspension (NCORSHFS) is a recently described novel cellular graft technique for the treatment of stable vitiligo. There is lack of data about various factors determining the repigmentation rate in vitiligo patients undergoing this novel surgical therapy. OBJECTIVE: To study the clinical characteristics and treatment variables determining therapeutic outcome in patients of stable vitiligo undergoing NCORSHFS. METHODS: Non-cultured outer root sheath hair follicle cell suspension was prepared from anagen hairs extracted from the occipital area. The number of melanocytes and hair follicle stem cells (HFSC) in the suspension was quantified by staining with anti-HMB45 and anti-CD200 antibody, respectively. In all patients, a 2 mm punch skin biopsy was taken from one of the vitiligo patch to be treated prior to surgery for assessment of histomorphological features. Post surgery patients were followed up at regular intervals for 24 weeks. RESULTS: Thirty patients (21 females, 9 males) with a clinical diagnosis of stable vitiligo, with a total of 60 target lesions were included in this study. The mean age of the study population was 21.10 ± 5.64 years. The number of melanocytes (P = 0.04) and HFSC (P = 0.01) transplanted were significantly higher among patients achieving optimum repigmentation (>75% repigmentation). There was a strong correlation between repigmentation at 24 week and number of melanocytes and HFSC transplanted. Number of HFSC transplanted and absence of dermal inflammation were significant predictors of achieving optimum repigmentation. CONCLUSION: The number of melanocytes and HFSC transplanted and absence of dermal inflammation were important determents of optimal repigmentation in patients undergoing NCORSHFS for treatment of stable vitiligo. Hence, refining the technique of NCORSHFS on the basis of these factors would help in achieving better surgical outcomes.

Comparison of efficacy and safety profile of topical calcipotriol ointment in combination with NB-UVB vs. NB-UVB alone in the treatment of vitiligo: a 24-week prospective right-left comparative clinical trial.

BACKGROUND: Narrow-band ultraviolet B (NB-UVB) is an effective and safe treatment for vitiligo. Calcipotriol, a synthetic analogue of 1,25 dihydroxyvitamin D3 may regulate melanin synthesis. Several clinical studies have been conducted but the synergistic effect of addition of calcipotriol to NB-UVB in the treatment of vitiligo is still debatable. OBJECTIVES: To compare the efficacy and safety of topical calcipotriol (0.005%) in combination with NB-UVB vs. NB-UVB alone in generalized vitiligo. METHODS: A prospective right-left comparative study including 27 patients of vitiligo was conducted for 24 weeks. On one side, calcipotriol was applied twice a day. NB-UVB was administered thrice a week. Response to treatment was assessed using change in Lund and Browder (L&B) score for percentage reduction in body surface area, investigator's global assessment (IGA) and patient's global assessment (PGA) scores. Treatment related side effects were noted. RESULTS: Mean percentage reduction in L&B score at 24 weeks was 51.4% on NB-UVB and 49% on NB-UVB plus calcipotriol side (P = 0.557), mean IGA score on NB-UVB was 2.7 ± 0.5 and on NB-UVB plus calcipotriol was 2.6 ± 0.4 (P = 0.821) and mean PGA score on NB-UVB side was 5.6 ± 3.4 and on NB-UVB plus calcipotriol side was 5.8 ± 3.2 (P = 0.706). Perifollicular repigmentation that matched with the surrounding normal skin colour was seen in majority of patients on both treatment sides. Calcipotriol produced mild local adverse effects. CONCLUSIONS: Addition of calcipotriol to NB-UVB probably does not enhance the efficacy of treatment including extent of repigmentation and time to initial repigmentation. Larger, randomized placebo-controlled trials are required to determine whether addition of calcipotriol has any utility when administered with NB-UVB in the treatment of vitiligo.

Modulation of LXR-α and the effector genes by Ascorbic acid and Statins in psoriatic keratinocytes.

Recent studies have revealed critical roles that nuclear receptors like LXR-α (Liver X Receptor- alpha) plays as a class of post-transcriptional gene regulator in skin development and diseases. Keeping in view the fact that LXR-α plays crucial role in keratinocyte proliferation and differentiation, it becomes imperative to dissect the pathways and role of LXR-α genomics in the pathogenesis of psoriasis with ultimate aim to explore novel preventive/therapeutic strategies as treatment options. To explore the effects of agonists and activators of LXR-α on its own gene expression and the putative targets in psoriatic keratinocytes. Identification of promoter sequences for (vitamin D receptor) VDR and Catalase were done using in silico analysis followed by ß-galactosidase (ß-gal) reporter plasmid assay in keratinocytes from clinically heathy subjects. Determination of relative levels of LXR-α,VDR and catalase in control versus treated cells upon activation of LXR-α with Atorvastatin + 22R hydroxycholestrol and Ascorbic acid + 22R hydroxycholestrol was done by PCR and Cell Proliferation Assay. The cells transfected with the reporter plasmid element for VDR and catalase showed more than 5 and 4 fold increase respectively in the ß-gal activity compared to the control. An increase of 55% in LXR-α gene expression at RNA level was observed in Atorvastatin + 22-R hydroxycholestrol compared to 24% in Ascorbic acid + 22-ROH cholesterol. The expression of the VDR and Catalase was significantly increased in both treated keratinocytes compared to its normal counterpart.

Spectrum of cutaneous manifestations of type 1 diabetes mellitus in 500 South Asian patients.

BACKGROUND: Data on cutaneous manifestations of type 1 diabetes mellitus (DM) is scarce. OBJECTIVES: To study the spectrum of dermatoses in patients with type 1 DM and the effects of disease duration and long-term glucose control on these cutaneous manifestations. SUBJECTS AND METHODS: After prior consent, clinical examination and relevant investigations were done in 500 subjects with type 1 DM enrolled between July 2011 and June 2012. Statistical tests were performed using SPSS 16. The presence of various dermatoses was correlated with the duration of diabetes. RESULTS: Of five hundred subjects, 339 (67·8%) had one or more dermatoses. The mean age of the patients was 16·9 ± 6·9 years (range 1-25 years) and mean total duration of diabetes was 4·43 ± 4·4 years. Cutaneous adverse effects related to insulin injections (CAII), comprising lipohypertrophy (41%), post-inflammatory hyperpigmentation (3%), lipoatrophy (0·6%) and acanthosis nigricans (0·4%), were the most common findings, followed by limited joint mobility (LJM) (16·8%), xerosis (15·8%) and scleroderma-like skin changes (10%). Patients having long-duration DM (> 4·4 years) were significantly more likely to have lipohypertrophy (P = 0·000), LJM (P = 0·000), scleroderma-like skin changes (P = 0·000), diabetic dermopathy (P = 0·000), acanthosis nigricans (P = 0·005) and skin tags (P = 0·002). Lipohypertrophy, LJM and scleroderma-like skin changes also showed significant correlation with blood glucose level. CONCLUSIONS: Our study suggests that cutaneous changes are common in young Asian patients with type 1 DM. Information, education and counselling of patients and care givers, and awareness among physicians is essential for the prevention and early management of these dermatoses.

Clinical and immunological outcomes of high- and low-dose rituximab treatments in patients with pemphigus: a randomized, comparative, observer-blinded study.

BACKGROUND: Rituximab is a promising therapy in pemphigus. However, there is no consensus on optimum dose. OBJECTIVES: To compare the efficacy, in terms of clinical and immunological outcomes in patients with pemphigus, of a high (2 × 1000 mg) vs. a low dose (2 × 500 mg) of rituximab. METHODS: This was a randomized, observer-blinded trial wherein 22 patients with pemphigus were randomized into two treatment groups. Patients received either two doses (day 0 and day 15) of 1000 mg rituximab or 500 mg rituximab, and were followed up for 48 weeks. Clinical activity was assessed by a blinded investigator. Indices of enzyme-linked immunosorbent assays (ELISAs) for desmoglein (Dsg)1 and Dsg3, and CD19 cell count were examined at regular intervals. RESULTS: There was no statistically significant difference in early and late clinical end points, and total cumulative dose of corticosteroids between the two groups. At week 40, the fall in Ikeda severity score was significantly more in the 2 × 1000 mg group than in 2 × 500 mg group (P = 0·049). Patients in the 2 × 500 mg group received a significantly higher cumulative dose of azathioprine (P = 0·018). The ELISA indices of Dsg1 and Dsg3 showed a statistically significant decline in the 2 × 1000 mg group only. B cell repopulation occurred earlier in the 2 × 500 mg group by 8 weeks. CONCLUSIONS: A few clinical and immunological study parameters have suggested improved outcomes in patients receiving high-dose (2 × 1000 mg) rituximab.

Type 2A Koebner phenomenon in vitiligo is distinct from other subtypes: observations from an Indian cohort.

BACKGROUND: Koebner phenomenon (KP) in vitiligo has been redefined and classified recently. OBJECTIVES: To study the clinical characteristics of various grades of KP. METHODS: In this prospective cross-sectional study, 202 patients with vitiligo were studied between January 2011 and December 2012 for the presence of KP. Based on the new Vitiligo European Task Force guidelines, KP was classified as type 1-3 and grades Ι-IV. Disease characteristics were studied in the various groups and subgroups based on the presence of KP. RESULTS: Koebner phenomenon was seen in 130 of 202 patients. The mean age of patients showing KP was 23.9 ± 13.6 years, compared with 19.3 ± 12.4 years for patients not showing KP (P = 0.02). The mean body surface area involved in the KP-positive group was 4.6 ± 5.6%, vs. 1.5 ± 1.1% in the KP-negative group (P = 0.001). Fifty-five patients experiencing KP received low-dose dexamethasone oral minipulse therapy compared with nine of those who did not (P = 0.01). Of the 130 patients with KP, grade Ι KP was seen in 32, grade II KP in 116, grade III KP in 22 and grade IV KP in 16. There was a significant difference between type 1 and type 2A KP, and between type 2A and type 2B KP. In contrast, type 1 and type 2B KP were found not to be significantly different and had a good degree of correlation. CONCLUSIONS: Patients with KP have a significantly higher age at onset, more extensive cutaneous involvement and are more likely to receive systemic steroids for disease control. Type 2A disease was found to be distinct from the other subtypes.

Comparison between autologous noncultured extracted hair follicle outer root sheath cell suspension and autologous noncultured epidermal cell suspension in the treatment of stable vitiligo: a randomized study.

BACKGROUND: Vitiligo is an acquired disorder of pigmentation caused by loss of epidermal melanocytes. Autologous noncultured epidermal cell suspension (NCES) and autologous noncultured extracted hair follicle outer root sheath cell suspension (NCORSHFS) are important surgical modalities for the treatment of stable vitiligo. OBJECTIVES: To compare NCES and NCORSHFS for producing repigmentation in stable vitiligo. METHODS: We randomized 30 patients with 47 stable vitiligo lesions into two groups. Patients in group 1 were treated with NCES, and those in group 2 with NCORSHFS. They were evaluated 16 weeks postsurgery for the extent of repigmentation, colour match, change in Dermatology Life Quality Index (DLQI) score and patient satisfaction. RESULTS: The extent of repigmentation was excellent (90-100% repigmentation) in 83% of lesions in the NCES group and 65% of lesions in the NCORSHFS group (P = 0·154). Repigmentation ≥ 75% (good repigmentation) was observed in 92% of lesions in the NCES group and 78% of lesions in the NCORSHFS group (P = 0·425). There was a significant improvement in DLQI score in both the groups, but the mean decrease among groups did not differ significantly (P = 0·244). However, patients in the NCES group were significantly more satisfied than the patients in the NCORSHFS group. No significant difference was seen in colour match and pattern of repigmentation. Adverse effects were minimal. CONCLUSIONS: Both NCES and NCORSHFS are safe and effective techniques with comparable efficacy. To the best of our knowledge, this is the first study directly comparing two different cellular techniques.

Acral vitiligo and lesions over joints treated with non-cultured epidermal cell suspension transplantation.

BACKGROUND: Vitiligo is a disfiguring condition that can cause considerable psychological distress to patients. Vitiligo lesions on acral areas and joints are considered difficult to treat, and they are unsuitable for surgical treatment because of their poor response. There are few studies on the management of those lesions with noncultured epidermal cell suspension transplantation. AIM: To evaluate the efficacy of a modified procedure using noncultured epidermal cell suspension transplantation in the management of vitiligo lesions over acral areas and joints. METHODS: We retrospectively analysed data for patients who had undergone non-cultured epidermal cell suspension transplantation for treatment of vitiligo. In total, 36 patients with 80 lesions over acral areas and joints were reviewed: 33 patients had generalized vitiligo, while the remaining three patients had focal vitiligo, and they had been followed up for 6-18 months. RESULTS: Of the 80 treated lesions, 51 had regained > 75% repigmentation and 23 had regained 50-75% repigmentation. The remaining six lesions, which were all no the distal fingers or toes and the ankle joint, had a poor response. CONCLUSIONS: Non-cultured epidermal cell suspension transplantation was successful in producing some degree of repigmentation in our patients, and could be a useful therapy for vitiligo lesions.

Acute renal dysfunction: time from coronary angiography to cardiac surgery.

BACKGROUND: The incidence of acute renal dysfunction has not changed much over the years, despite improvements in perioperative care. Our objectives were to evaluate the impact of timing of cardiac surgery after coronary angiography on acute renal dysfunction, to identify risk factors associated with development of acute renal dysfunction, and to measure the association between acute renal dysfunction and mortality. PATIENTS AND METHODS: The patients were divided into 3 groups: group A (cardiac surgery 0-3 days after angiography), group B (surgery 4-6 days after angiography), and group C (surgery > 6 days after angiography). Endpoints were acute renal dysfunction, defined as serum creatinine > 25% of baseline on the 3rd postoperative day, and mortality. RESULTS: In 749 patients, the incidence of acute renal dysfunction was 15%; 5% required dialysis. Hypertension, congestive heart failure, chronic obstructive pulmonary disease, ejection fraction < 40%, prolonged cardiopulmonary bypass time, intraaortic balloon pump use, and urgent surgery were risk factors for acute renal dysfunction after cardiac surgery. Patients in group C had a lower risk of acute renal dysfunction. CONCLUSION: Acute renal dysfunction has a definite relationship with the time period between angiography and cardiac surgery. The causative factors for this condition are multiple and also show a consistent association with mortality.