Inequities in global cancer surgery: Challenges and solutions.

The disparity in access to and quality of surgical cancer care between high and low resource settings impacts immediate and long-term oncological outcomes. With cancer incidence and mortality set to increase rapidly in the next few decades, we examine the factors leading to inequities in global cancer surgery, and look at potential solutions to overcome these challenges.

Outcomes of elective cancer surgery in COVID-19 survivors: An observational study.

BACKGROUND AND OBJECTIVES: Guidelines recommend deferral of elective surgery after COVID-19. Delays in cancer surgeries may affect outcomes. We examined perioperative outcomes of elective cancer surgery in COVID-19 survivors. The primary objective was 30-day all-cause postoperative mortality. The secondary objectives were 30-day morbidity, and its association with COVID-19 severity, and duration between COVID-19 and surgery. METHODS: We collected data on age, gender, comorbidities, COVID-19 severity, preoperative investigations, surgery performed, and intra and postoperative outcomes in COVID-19 survivors who underwent elective cancer surgery at a tertiary-referral cancer center. RESULTS: Three hundred and forty-eight COVID-19 survivors presented for elective cancer surgery. Of these, 332/348 (95%) patients had mild COVID-19 and 311 (89%) patients underwent surgery. Among patients with repeat investigations, computerized tomography scan of the thorax showed the maximum new abnormalities (30/157, 19%). The 30-day all-cause mortality was 0.03% (1/311) and 30-day morbidity was 17% (54/311). On multivariable analysis, moderate versus mild COVID-19 (odds ratio [OR]: 1.95; 95% confidence interval  [CI]: 0.52-7.30; p = 0.32) and surgery within 7 weeks of COVID-19 (OR: 0.61; 95% CI: 0.33-1.11; p = 0.10) were not associated with postoperative morbidity. CONCLUSIONS: In patients who recover from mild to moderate COVID-19, elective cancer surgery can proceed safely even within 7 weeks. Additional preoperative tests may not be indicated in these patients.

Use of the McGRATH™ MAC videolaryngoscope to evaluate the ability of anesthetists to give effective cricoid pressure: An interventional study.

Background and Aims: The application of cricoid pressure (CP) for rapid sequence induction is questioned on two grounds: its effectiveness in clinical settings and its impact on the laryngeal view. The main reason cited for its ineffectiveness is the lack of knowledge and training in its correct application. This study assessed, the performance of anesthetists in applying effective CP in a clinical setting. Material and Methods: Eighty-five ASA I/II adult patients posted for elective surgery requiring oral endotracheal intubation with nasogastric tube (NGT) placement participated in the study. Eighty-five anesthetists divided into five groups based on their level of experience were randomly chosen to apply CP after induction of anesthesia. An experienced anesthetist performed videolaryngoscopy and attempted NGT insertion. The primary outcome was effectiveness of CP defined as the inability to pass the NGT into the esophageal opening. We also noted that the glottic view with and without CP and the effectiveness of CP across different levels of experience of anesthetists. Results: Of the 85 anesthetists, 61 (71.8%) applied effective CP. The effectiveness improved with experience (first-year residents-11/17 [64.7%], second-year residents-11/17 [64.7%], third-year residents-10/17 [58.8%], senior residents-13/17 [76.5%], and consultants-16/17 [94.1%]) (P = 0.157). Post hoc analysis showed higher effectiveness among anesthetists with >3 years of experience (85.3%) compared with <3 years of experience (62.7%) (P = 0.024). CP did not always impede the laryngeal view, rather it has no effect or actually improves the glottic view in many instances (81%). Conclusion: CP is effective in occluding the esophageal lumen without hampering glottic view in the majority of the cases, and its effectiveness improves with experience.

The International Collaboration for Research methods Development in Oncology (CReDO) workshops: shaping the future of global oncology research.

Low-income and middle-income countries (LMICs) have a disproportionately high burden of cancer and cancer mortality. The unique barriers to optimum cancer care in these regions necessitate context-specific research. The conduct of research in LMICs has several challenges, not least of which is a paucity of formal training in research methods. Building capacity by training early career researchers is essential to improve research output and cancer outcomes in LMICs. The International Collaboration for Research methods Development in Oncology (CReDO) workshop is an initiative by the Tata Memorial Centre and the National Cancer Grid of India to address gaps in research training and increase capacity in oncology research. Since 2015, there have been five CReDO workshops, which have trained more than 250 oncologists from India and other countries in clinical research methods and protocol development. Participants from all oncology and allied fields were represented at these workshops. Protocols developed included clinical trials, comparative effectiveness studies, health services research, and observational studies, and many of these protocols were particularly relevant to cancer management in LMICs. A follow-up of these participants in 2020 elicited an 88% response rate and showed that 42% of participants had made progress with their CReDO protocols, and 73% had initiated other research protocols and published papers. In this Policy Review, we describe the challenges to research in LMICs, as well as the evolution, structure, and impact of CReDO and other similar workshops on global oncology research.

Impact of COVID-19 on cancer care in India: a cohort study.

BACKGROUND: The COVID-19 pandemic has disrupted health-care systems, leading to concerns about its subsequent impact on non-COVID disease conditions. The diagnosis and management of cancer is time sensitive and is likely to be substantially affected by these disruptions. We aimed to assess the impact of the COVID-19 pandemic on cancer care in India. METHODS: We did an ambidirectional cohort study at 41 cancer centres across India that were members of the National Cancer Grid of India to compare provision of oncology services between March 1 and May 31, 2020, with the same time period in 2019. We collected data on new patient registrations, number of patients visiting outpatient clinics, hospital admissions, day care admissions for chemotherapy, minor and major surgeries, patients accessing radiotherapy, diagnostic tests done (pathology reports, CT scans, MRI scans), and palliative care referrals. We also obtained estimates from participating centres on cancer screening, research, and educational activities (teaching of postgraduate students and trainees). We calculated proportional reductions in the provision of oncology services in 2020, compared with 2019. FINDINGS: Between March 1 and May 31, 2020, the number of new patients registered decreased from 112 270 to 51 760 (54% reduction), patients who had follow-up visits decreased from 634 745 to 340 984 (46% reduction), hospital admissions decreased from 88 801 to 56 885 (36% reduction), outpatient chemotherapy decreased from 173634 to 109 107 (37% reduction), the number of major surgeries decreased from 17 120 to 8677 (49% reduction), minor surgeries from 18 004 to 8630 (52% reduction), patients accessing radiotherapy from 51 142 to 39 365 (23% reduction), pathological diagnostic tests from 398 373 to 246 616 (38% reduction), number of radiological diagnostic tests from 93 449 to 53 560 (43% reduction), and palliative care referrals from 19 474 to 13 890 (29% reduction). These reductions were even more marked between April and May, 2020. Cancer screening was stopped completely or was functioning at less than 25% of usual capacity at more than 70% of centres during these months. Reductions in the provision of oncology services were higher for centres in tier 1 cities (larger cities) than tier 2 and 3 cities (smaller cities). INTERPRETATION: The COVID-19 pandemic has had considerable impact on the delivery of oncology services in India. The long-term impact of cessation of cancer screening and delayed hospital visits on cancer stage migration and outcomes are likely to be substantial. FUNDING: None. TRANSLATION: For the Hindi translation of the abstract see Supplementary Materials section.

A Survey of the Practice of Thoracic Anesthesia in India.

OBJECTIVE: The aim of the survey was to understand the contemporary thoracic anesthesia practice in India. DESIGN: A prospective questionnaire-based survey. SETTINGS: The survey was conducted at the Annual Conference of the Indian Association of Cardiovascular and Thoracic Anesthesiologists 2018 (IACTACON-2018). After the conference, the questionnaire was distributed again to the conference participants electronically to increase the response rate. PARTICIPANTS: Anesthesiologists from India attending IACTACON-2018. INTERVENTIONS: Hard copies of a validated questionnaire (n = 430) were distributed among Indian anesthesiologists attending IACTACON 2018. The questionnaire included 17 questions pertaining to preanesthesia checkup, lung isolation devices, intraoperative management, postoperative analgesia, and infrastructure available at their institutions. Following the conference, the survey was continued online by sending the link of the online survey to all registered participants (n = 421) from India, taking care to avoid duplication of responses. Collected data were analyzed using frequency distributions and chi-square tests. MEASUREMENTS AND MAIN RESULTS: Total responses were 166 (110 hardcopies and 56 online responses) of 430, with the response rate being 38.6%. A double-lumen tube (DLT) was the most commonly preferred for lung isolation (160/166: 96.4%). Nearly 55% of anesthesiologists preferred auscultation for confirmation of DLT, as 38% of anesthesiologists reported unavailability of the pediatric bronchoscope. Nearly 80% of anesthesiologists were compliant with the principles of protective one-lung ventilation. Preference for inhalation anesthetic agents during one-lung ventilation, use of restrictive intravenous fluids, and regional blocks for postoperative analgesia commonly were followed by the Indian anesthesiologists. CONCLUSION: Despite the challenges offered by limited resources, the practice of thoracic anesthesia in India is at par with the standards followed across the world.

An Introduction to Statistics: Diagnostic Tests.

Diagnostic tests are used to differentiate between those with and without disease. In this article, we examine some of the properties of diagnostic tests, such as sensitivity, specificity, predictive values, and receiver operating characteristic curves. How to cite this article: Ranganathan P. An Introduction to Statistics: Diagnostic Tests. Indian J Crit Care Med 2021; 25(Suppl 3):S283-S284.

An Introduction to Statistics: Choosing the Correct Statistical Test.

The choice of statistical test used for analysis of data from a research study is crucial in interpreting the results of the study. This article gives an overview of the various factors that determine the selection of a statistical test and lists some statistical testsused in common practice. How to cite this article: Ranganathan P. An Introduction to Statistics: Choosing the Correct Statistical Test. Indian J Crit Care Med 2021;25(Suppl 2):S184-S186.

The Second- vs First-wave COVID-19: More of the Same or a Lot Worse? A Comparison of Mortality between the Two Waves in Patients Admitted to Intensive Care Units in Nine Hospitals in Western Maharashtra.

BACKGROUND: India, along with the rest of the world, faced the challenging severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic. The second wave in India lagged behind that in the Western world, due to different timing of seasons. There is scarce data about the differences between the two waves, for intensive care unit (ICU) patients. We present the data of 3,498 patients from 9 ICUs of western Maharashtra. MATERIALS AND METHODS: We collected prospective data of hospitalized, RT-PCR confirmed, coronavirus-2019 (COVID-19) patients, from nine tertiary centers, after institutional ethics committee (IEC) approval. Then, we segregated and analyzed the data of patients admitted to the ICU, for comorbidities, high-resolution computed tomography (HRCT) score, ventilatory support, etc. The primary outcomes were ICU and hospital mortality. We also performed multivariable analysis for predictors of ICU mortality. RESULTS: Overall, there were 3,498 ICU patients. In the first wave, 1,921 patients needed ICU admission, while in the second wave, 1,577 patients. Patients in the second wave had significantly higher ICU (26.1 vs 13.4%, p <0.001) and hospital mortality (29.9 vs 18.2%, p <0.001) and need for ventilatory support of any type. More patients received steroids during the second wave. On multivariable regression, male gender, ICU admission during the second wave, increasing HRCT score, and need for intubation and mechanical ventilation were significant predictors of ICU mortality. CONCLUSION: ICU patients admitted during the two waves were of the similar age, but there were more females, and more patients had comorbidities during the second wave. The ICU and hospital mortality were significantly higher during the second wave. HOW TO CITE THIS ARTICLE: Zirpe KG, Dixit S, Kulkarni AP, Pandit RA, Ranganathan P, Prasad S, et al. The Second- vs First-wave COVID-19: More of the Same or a Lot Worse? A Comparison of Mortality between the Two Waves in Patients Admitted to Intensive Care Units in Nine Hospitals in Western Maharashtra. Indian J Crit Care Med 2021; 25(12):1343-1348.

Correction to: The enhanced recovery after surgery (ERAS) protocol to promote recovery following esophageal cancer resection.

The original article has been corrected.

The enhanced recovery after surgery (ERAS) protocol to promote recovery following esophageal cancer resection.

Esophageal cancer surgery, comprising esophagectomy with radical lymphadenectomy, is a complex procedure associated with considerable morbidity and mortality. The enhanced recovery after surgery (ERAS) protocol which aims to improve perioperative care, minimize complications, and accelerate recovery is showing promise for achieving better perioperative outcomes. ERAS is a multimodal approach that has been reported to shorten the length of hospital stay, reduce surgical stress response, decrease morbidity, and expedite recovery. While ERAS components straddle preoperative, intraoperative, and postoperative periods, they need to be seen in continuum and not as isolated elements. In this review, we elaborate on the components of an ERAS protocol after esophagectomy including preoperative nutrition, prehabilitation, counselling, smoking and alcohol cessation, cardiopulmonary evaluation, surgical technique, anaesthetic management, intra- and postoperative fluid management and pain relief, mobilization and physiotherapy, enteral and oral feeding, removal of drains, and several other components. We also share our own institutional protocol for ERAS following esophageal resections.

A randomized controlled trial comparing McGRATH series 5 videolaryngoscope with the Macintosh laryngoscope for nasotracheal intubation.

BACKGROUND AND AIMS: The aim of this study was to compare the efficacy of McGRATH series 5 videolaryngoscope (VL) with Macintosh laryngoscope for nasotracheal intubation (NTI) in patients without anticipated difficult airways undergoing head and neck cancer surgeries. MATERIAL AND METHODS: We randomized 60 adult patients for NTI by experienced anesthetists with either Macintosh laryngoscope or McGRATH series 5 VL (VL group). The primary objective was to compare time taken for intubation (TTI). The secondary objectives included success rates, number of attempts, need for optimization maneuvers, Cormack and Lehane (CL) grade, and percentage of difficult intubations. RESULTS: The mean TTI in the VL group was 43 (±10.6) versus 75 (±38.0) s in the Macintosh group (99% CI: 12.5; -51.6 s; P < 0.001). The overall intubation success rate was 100% in both groups. All 29 (100%) patients in the VL group were intubated in the first attempt versus 26 (86%) patients in the Macintosh group (99% CI -5; 33%; P = 0.11). In the Macintosh group, 20 (66%) patients needed optimization maneuver versus none in the VL group (99% CI 40; 91%; P < 0.001). In the VL group, 28 (96%) patients had a CL grade 1 view versus 9 (31%) in Macintosh group (99% CI 38; 92%; P < 0.001). There were no difficult intubations in the VL group versus 3 (10%) in the Macintosh group (99% CI: 7; 28%; P = 0.237). There was no trauma to oropharyngeal structures in either group. CONCLUSION: The McGRATH series 5 VL has faster TTI, better glottic visualization, and less need for optimization maneuvers than the Macintosh laryngoscope for NTI in patients with unanticipated difficult airways, when performed by experienced anesthetists.

Understanding Research Study Designs.

In this article, we will look at the important features of various types of research study designs used commonly in biomedical research. HOW TO CITE THIS ARTICLE: Ranganathan P. Understanding Research Study Designs. Indian J Crit Care Med 2019;23(Suppl 4):S305-S307.

An Introduction to Statistics: Understanding Hypothesis Testing and Statistical Errors.

The second article in this series on biostatistics covers the concepts of sample, population, research hypotheses and statistical errors. HOW TO CITE THIS ARTICLE: Ranganathan P, Pramesh CS. An Introduction to Statistics: Understanding Hypothesis Testing and Statistical Errors. Indian J Crit Care Med 2019;23(Suppl 3):S230-S231.

An Introduction to Statistics - Data Types, Distributions and Summarizing Data.

The purpose of research is to gather data, which can then be used to inform decision-making. Data can be of various types and an understanding of this is crucial for its proper analysis and interpretation. In this article, we look at various types and distributions of data, and methods to summarize this data. HOW TO CITE THIS ARTICLE: Ranganathan P, Gogtay NJ, An Introduction to Statistics - Data Types, Distributions and Summarizing Data. Indian J Crit Care Med 2019;23(Suppl 2):S169-S170.

Extended pancreatectomy as defined by the ISGPS: useful in selected cases of pancreatic cancer but invaluable in other complex pancreatic tumors.

PURPOSE: Extended pancreatectomy aimed at R0 resection of pancreatic tumors with adjacent vessel and organ involvement may be the only option for cure. This study was done with an objective to analyze the short- and long-term outcomes of extended pancreatic resections. METHODS: All pancreatectomies performed between 2006 and 2015 were included. The pancreatectomies were classified as standard or extended, as per the International Study Group for Pancreatic Surgery. All surgical complications and terminologies were according to Clavien-Dindo classification and International Study Group for Pancreatic Surgery guidelines. Morbidity and mortality were primary outcomes and disease-free survival was a secondary outcome. RESULTS: Sixty-three extended and 620 standard pancreatectomies were performed. Major morbidity (Clavien grades III, IV and V) (37 vs. 29%, p = 0.21) and mortality (6 vs. 4%, p = 0.3) for extended pancreatectomies were comparable to those for standard pancreatectomies. Blood loss > 855 ml, need for blood transfusion, and tumor size were independent risk factors for morbidity, and the latter two for mortality. Standard pancreatectomies were associated with better 3-year disease-free survival than extended pancreatectomies (67 vs. 41%, p < 0.001). Extended pancreatectomies resulted in a significantly better median disease-free survival for non-pancreatic adenocarcinoma vs. pancreatic adenocarcinoma (33.3 vs. 9.5 months, p = 0.01). CONCLUSION: Extended pancreatectomies resulted in similar peri-operative morbidity and mortality compared to standard pancreatectomies. Although the survival of patients undergoing these complex procedures is inferior to standard pancreatectomies, they should be undertaken not only in selected cases of pancreatic cancer but even more so in other complex pancreatic tumors.

The World Health Organization Surgical Safety Checklist: An audit of quality of implementation at a tertiary care high volume cancer institution.

BACKGROUND AND AIMS: In 2007, the World Health Organization (WHO) implemented the Surgical Safety Checklist (SSC), which has enhanced the communication between the surgical team members, improved outcomes, decreased complications, and improved patient safety. However, for the checklist to be effective, proper implementation and compliance with the checklist are imperative. The aim of this study was to evaluate the quality of implementation of the WHO SSC during elective surgery at a tertiary referral cancer hospital in India. MATERIAL AND METHODS: In this prospective observational study, a trained research nurse passively observed the implementation of selected items from the modified version of the WHO SSC during elective surgeries and evaluated the compliance with the checklist, percentage of items for which the use of the SSC prompted an action, and level of interaction between the key team players during the conduct of the checklist. RESULTS: We studied 200 surgeries for each part of the SSC. Compliance was 200 (100%), 156 (78%), and 153 (76.5%) for the first, second, and third part of the SSC, respectively. All the three parts were mostly initiated by surgeons [197 (98.5%), 92 (59%), and 136 (88.9%), respectively]. Overall, 131/2200 (5.95%) items in the checklist were carried out only after being prompted during the conduct of the checklist. The interaction between all three representatives was found in only 265/509 (52%) cases. CONCLUSION: The quality of implementation of the SSC was found to be suboptimal, with a definite scope for improvement. Compliance with all items on the checklist and active participation by all team members are crucial for successful implementation of the checklist.

Evidence-based medicine: A survey among perioperative health care professionals in India.

BACKGROUND AND AIMS: Evidence-based medicine (EBM) is defined as the use of scientifically proven evidence for delivering best possible health care to patients. Despite growing emphasis on the need for EBM-based practice, acceptability, and perceptions toward EBM might differ among health professionals. The objective of this study was to assess the attitude, knowledge, and current practices of EBM among perioperative care health professionals in India. MATERIAL AND METHODS: This was a single point paper-based questionnaire survey carried out in February 2014 among delegates registered for an EBM conference on "perioperative care" held at a Tertiary referral Cancer Centre in India. Participation was voluntary and respondents were given the option of remaining anonymous. RESULTS: Out of 190 questionnaires, 123 (65%) were returned. Most respondents (98%) agreed that practicing EBM improved patient care. The need to follow departmental protocols (22%) worries about the cost of implementing new treatments (20%) and inadequate skills to critically appraise articles (16%) accounted for major barriers in implementing EBM in clinical practice, with only 15% of respondents stating reluctance to change set practice. "Randomized controlled trial" and "number needed to treat" were the best and least understood EBM terms. Regarding awareness of 10 commonly used EBM-based guidelines in perioperative medicine, the percentage of correct responses ranged from 20% to 88%. CONCLUSION: Although most respondents agreed that practicing EBM improved patient care, many of them showed a low level of awareness regarding fundamental aspects of EBM. In addition to encouraging implementation of EBM, there should be increased focus on training in EBM methods.

Awareness during general anesthesia: An Indian viewpoint.

BACKGROUND AND AIMS: The incidence of intra-operative awareness with explicit recall in the Western world has been reported to be between 0.1% and 0.2% in the general surgical population and up to 1-2% of patients at high risk for this complication. Awareness in the Indian population has never been studied; we therefore wanted to detect the incidence of awareness in patients who were at high risk of experiencing awareness during surgery in our population. MATERIAL AND METHODS: We conducted a prospective single-center observational study at a 600-bedded tertiary cancer care referral hospital. We recruited adult patients posted for major cancer surgery who were considered to be at high risk for awareness. These patients were interviewed at three time-points using the structured modified Brice interview questionnaire. The primary outcome studied was the incidence of definite intra-operative awareness. RESULTS: A total of 934 patients were included in the final analysis of which none reported awareness. Using the rule of three (Hanley and Lippman-Hand) we conclude that the upper 95% confidence interval for the incidence of awareness in this population is <1 in 300 (0.33%). CONCLUSION: Awareness under anesthesia is a distressing complication with a potential for long-term psychological consequences, and every effort should be undertaken to prevent it. It is reassuring though that our data in Indian cancer patients at high risk for intra-operative awareness suggests that it is an uncommon occurrence.