8 research outputs found

    Effects of Planting Time and Poultry Manure on Late Season Plaintain Establishment and Yield in Owerri Rainforest Zone of Nigeria

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    In rainfed agriculture, plantain availability to consumer is seasonal. Late season plantain planting with appropriate organic manure application has been one of the advocated solutions. This experiment was carried out at the Federal University of Technology Teaching and Research  farm, Owerri in 2010 late season planting to determine the  appropriate time of planting and optimum manure rate that will enhance late season plantain establishment and bunch availability in the tropical rainforest. The experiment was a 3x4 factorial fitted into a randomized complete block design replicated three times. The treatments were three late season months (5th September, 5th October and 5thNovember) and four poultry manure rates (0,4,8 and 12 t.ha-1). The pre and post soil, establishment, growth and yield data were collected and analysed statistically.  The post soil chemical analysis showed an improvement on soil pH,(5.30-6.07, 5.59-5.67 and 5.73-5.72), organic matter,(2.098-2.098, 2.476-2.373 and 2.240-2.201%) calcium,(7.03-10.20, 3.60-6.40 and 5.40-5.70 l/kg) organic carbon,(1.696-1.217, 1.436-1.377 and1.436-1.277%)  phosphorous (21.39-20.86, 20.20-18.80 and14.60-13.90ppm)  and  magnesium (0.67-2.00, 0.83-1.17 and 0.83-1.00CMOL) in the treatment that received 8 and12 t ha-1 poultry manure in September, October and November planting respectively..  The residual effect of poultry manure resulted in increased yield (8.6, 7.2 and 7.0kg)  of the first ratoon crop in September, October, and November planting that received 12t ha-1poultry manure respectively.  Although poultry manure rates enhanced plantain establishment, growth and yield when planted in September, October and November, plantain planted  in September and manured with 12 t ha-1 poultry manure significantly(p=0.05) enhanced plantain establishment,(100%) ,yield (9.2kg in plant crop,8.6 first ratoon) and  income return (N 7,135,,501.8/ha) in Owerri Rainforest zone of Nigeria. Keywords: Planting time,  poultry manure, late season plantain, production, humid tropics

    Mortality and pulmonary complications in patients undergoing surgery with perioperative SARS-CoV-2 infection: an international cohort study

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    Background: The impact of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) on postoperative recovery needs to be understood to inform clinical decision making during and after the COVID-19 pandemic. This study reports 30-day mortality and pulmonary complication rates in patients with perioperative SARS-CoV-2 infection. Methods: This international, multicentre, cohort study at 235 hospitals in 24 countries included all patients undergoing surgery who had SARS-CoV-2 infection confirmed within 7 days before or 30 days after surgery. The primary outcome measure was 30-day postoperative mortality and was assessed in all enrolled patients. The main secondary outcome measure was pulmonary complications, defined as pneumonia, acute respiratory distress syndrome, or unexpected postoperative ventilation. Findings: This analysis includes 1128 patients who had surgery between Jan 1 and March 31, 2020, of whom 835 (74·0%) had emergency surgery and 280 (24·8%) had elective surgery. SARS-CoV-2 infection was confirmed preoperatively in 294 (26·1%) patients. 30-day mortality was 23·8% (268 of 1128). Pulmonary complications occurred in 577 (51·2%) of 1128 patients; 30-day mortality in these patients was 38·0% (219 of 577), accounting for 81·7% (219 of 268) of all deaths. In adjusted analyses, 30-day mortality was associated with male sex (odds ratio 1·75 [95% CI 1·28–2·40], p\textless0·0001), age 70 years or older versus younger than 70 years (2·30 [1·65–3·22], p\textless0·0001), American Society of Anesthesiologists grades 3–5 versus grades 1–2 (2·35 [1·57–3·53], p\textless0·0001), malignant versus benign or obstetric diagnosis (1·55 [1·01–2·39], p=0·046), emergency versus elective surgery (1·67 [1·06–2·63], p=0·026), and major versus minor surgery (1·52 [1·01–2·31], p=0·047). Interpretation: Postoperative pulmonary complications occur in half of patients with perioperative SARS-CoV-2 infection and are associated with high mortality. Thresholds for surgery during the COVID-19 pandemic should be higher than during normal practice, particularly in men aged 70 years and older. Consideration should be given for postponing non-urgent procedures and promoting non-operative treatment to delay or avoid the need for surgery. Funding: National Institute for Health Research (NIHR), Association of Coloproctology of Great Britain and Ireland, Bowel and Cancer Research, Bowel Disease Research Foundation, Association of Upper Gastrointestinal Surgeons, British Association of Surgical Oncology, British Gynaecological Cancer Society, European Society of Coloproctology, NIHR Academy, Sarcoma UK, Vascular Society for Great Britain and Ireland, and Yorkshire Cancer Research

    The impact of surgical delay on resectability of colorectal cancer: An international prospective cohort study

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    AimThe SARS-CoV-2 pandemic has provided a unique opportunity to explore the impact of surgical delays on cancer resectability. This study aimed to compare resectability for colorectal cancer patients undergoing delayed versus non-delayed surgery.MethodsThis was an international prospective cohort study of consecutive colorectal cancer patients with a decision for curative surgery (January-April 2020). Surgical delay was defined as an operation taking place more than 4 weeks after treatment decision, in a patient who did not receive neoadjuvant therapy. A subgroup analysis explored the effects of delay in elective patients only. The impact of longer delays was explored in a sensitivity analysis. The primary outcome was complete resection, defined as curative resection with an R0 margin.ResultsOverall, 5453 patients from 304 hospitals in 47 countries were included, of whom 6.6% (358/5453) did not receive their planned operation. Of the 4304 operated patients without neoadjuvant therapy, 40.5% (1744/4304) were delayed beyond 4 weeks. Delayed patients were more likely to be older, men, more comorbid, have higher body mass index and have rectal cancer and early stage disease. Delayed patients had higher unadjusted rates of complete resection (93.7% vs. 91.9%, P = 0.032) and lower rates of emergency surgery (4.5% vs. 22.5%, P ConclusionOne in 15 colorectal cancer patients did not receive their planned operation during the first wave of COVID-19. Surgical delay did not appear to compromise resectability, raising the hypothesis that any reduction in long-term survival attributable to delays is likely to be due to micro-metastatic disease
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