Abdominal wound closure in the presence of sepsis: our experience with the use of subcutaneous drain.

Objectives: Patients requiring surgery for secondary peritonitis demonstrate a significantly increased risk for incisional surgical site infection. This study aimed to evaluate the efficacy of subcutaneous wound drain post-laparotomy for contaminated surgical wounds. Design: This was a prospective comparative hospital-based study. Setting: Patients who had surgery for secondary peritonitis in Irrua Specialist Teaching Hospital were studied. Participants: Fifty patients aged 16 years and above who presented with secondary peritonitis. Intervention: Patients who met the inclusion criteria were randomized into two equal groups. Group A had a suction drain placed in the subcutaneous space after laparotomy while Group B did not. Main outcome measures: Development of incisional surgical site infection, wound dehiscence, and duration of post-operative hospital stay. Results: The incidence of incisional surgical site infection was significantly less in Group A (20%) than in Group B (68%). There was no case of wound dehiscence in Group A as against 3 (12%) in Group B. The difference was not statistically significant. The mean duration of hospital stay was significantly less with subcutaneous suction drain (8.96+2.81 Vs 14.04+8.05; p = 0.005). Conclusion: Subcutaneous suction drainage is beneficial in abdominal wall closure in cases of peritonitis as it significantly reduces the incidence of incisional surgical site infection and the duration of postoperative hospital stay. The reduction in surgical wound dehiscence observed in this study was, however, not statistically significant. Funding: None declared.

Surgical Residency Training in Nigeria: An Audit Through the Lenses of the Trainee and Trainer.

INTRODUCTION: Resident doctors constitute an important workforce of the Nigerian healthcare system wherein they undergo structured training to become competent specialists in different fields of medicine. The aim of this survey was to audit the surgical residency training process, incorporating both the trainer's and the trainee's perspectives, with a view to improving both residency training and overall patient care. METHODS: This was a multicenter descriptive cross-sectional study involving consultant surgeons and surgical trainees in selected tertiary healthcare institutions in Nigeria. A link to an online semi-structured and pretested questionnaire was sent to study participants whose agreement to fill out the questionnaire was taken as implied consent for the study. The perception of respondents on key areas of surgical residency training like the quality of training, skill acquisition, mentorship, supervision, operative exposures, research, funding, didactic sessions, and work schedule was assessed using a Likert scale. Their perceived challenges to training and measures to improve the quality of training were recorded. Data were analysed using version 23 of the SPSS. RESULTS: A total of 127 participants (25 trainers and 102 trainees) were recruited with a mean age of 34.8 ± 3.5 y for the trainees and 47.5 ± 6.9 y for the trainers. The majority of both the trainers and trainees (72%, n = 18 and 93%, n = 96, respectively) were dissatisfied with the quality of surgical residency training in Nigeria with the trainers (88%, n = 22) and trainees (97.1%, n = 99) mostly agreeing that surgical training should be standardized across training centres in Nigeria. The trainees and trainers rated mentorship, research, funding, and overall quality of surgical residency training as inadequate, while most of the trainees and trainers rated supervision of trainees as adequate. The trainees predominantly identified poor training facilities as the most important challenge to surgical residency, followed by high clinical workload, while the majority of the trainers identified workplace bullying and high clinical workload as being the predominant factors. The nine-pronged recommendations by both the trainers and trainees to improve surgical training in Nigeria include mentorship program for trainees, funding of surgical residency training, provision of facilities and equipment for training, adequate supervision of trainees by trainers, job description and defined work schedule for trainees, health insurance of patients, overseas training of trainees during the residency program, improved remuneration of trainees, and adequate motivation of trainers. CONCLUSIONS: The quality of surgical residency training in Nigeria is perceived as suboptimal by trainees and trainers. Perceived common challenges to surgical residency training include poor training facilities, workplace bullying, and high clinical workload. Adequate funding of surgical residency program, standardized mentorship, and training of trainees with improved remuneration of trainees and motivation of their trainers would enhance the overall quality of surgical residency training in Nigeria.

The Effects of Combined Gum-chewing and Parenteral Metoclopramide on the Duration of Postoperative Ileus After Abdominal Surgery.

Background: Postoperative ileus remains the most common cause of prolonged hospital stay after abdominal surgery. Various agents have been tested in the treatment of postoperative ileus but no agent alone has achieved effectiveness as postoperative ileus is of multifactorial aetiology. Objectives: The aim of this study was to assess the effects of combined use of gum-chewing and parenteral metoclopramide on the duration of postoperative ileus after abdominal surgery. Materials and Methods: This was a randomised controlled study of patients aged 16-65 years who underwent elective abdominal surgeries. Patients were randomised into a gum-metoclopramide (GM) group, a gum-only (G) group, a metoclopramide-only (M) group and a control (C) group. Patients in the GM group chewed gum and received intravenous metoclopramide, each 8 hourly. In G group, patients chewed only gum, whereas those in M group received only 10mg of intravenous metoclopramide, 8 hourly. To C group, 10 mL of intravenous sterile water was given 8 hourly. Patients were monitored for time to passage of first flatus or faeces. Groups were compared for the duration of postoperative ileus and duration of hospital stay using analysis of variance. Statistical significance was set at a P value of <0.05. Results: Fifty-two out of the 105 recruited patients were eligible for analysis. The male-to-female ratio was 1:1.9 with a median age of 57.0 years (interquartile range [IQR] =16 years). Prolonged postoperative ileus occurred in 9.4% (n = 5) of the patients (GM = 2, G = 1, M = 2, C = 0; P = 0.604) and was associated with longer duration of nasogastric tube use (P = 0.028). The duration of postoperative ileus was 3 days (IQR = 2), 2.5 days (IQR = 3.3), 4 days (IQR = 1.5) and 3 days (IQR = 2) in the GM, G, M, and C groups, respectively (P = 0.317), whereas the median duration of hospital stay was 7 days (IQR = 3), shortest in G group (6.5 days, IQR = 8) and longest in M group (9 days, IQR = 3) (P = 0.143). Conclusions: The combined use of gum-chewing and parenteral metoclopramide had no effect on the duration of postoperative ileus following abdominal surgeries in adult surgical patients.

Bacterial and Antibiotic Sensitivity Pattern in Secondary Peritonitis.

Background: Peritonitis is inflammation of the peritoneum usually as a result of a localized or generalized infection. Secondary peritonitis which is the most common type follows an infective process in a visceral organ. The role of peritoneal cultures and use of antibiotics effective against culture results remain controversial. Objectives: This study was conducted to determine the bacterial and antibiotic sensitivity pattern in patients with secondary peritonitis. It also compared the use of empirical antibiotics and culture-sensitive antibiotics with outcomes of patients with secondary peritonitis. Materials and Methods: A prospective randomized clinical study was conducted. Five millilitres of peritoneal fluid was sampled intra-operatively, and microscopy, culture, and sensitivity testing was performed in patients with secondary peritonitis. The patients, randomized into two groups, had antibiotics administered for 7 days. The first group had empirical antibiotics throughout (Ceftriaxone + Metronidazole), whereas the second group had empirical antibiotics (Ceftriaxone + Metronidazole) for the first 2 days and antibiotics according to the sensitivity report for the remaining 5 days. The post-hoc analysis was also done on a third group, who, even though were randomized to either groups, had no growth on culture of peritoneal fluid. Results: The commonest pathogens identified from the peritoneal culture of the participants were Escherichia coli, Klebsiella pneumonia, Anaerococcus group, and Bacteroides fragilis. Complications including mortality were significantly higher in those who received empirical antibiotics than those who received culture-sensitive antibiotics. Conclusion: The outcome of antibiotics administration in patients with secondary peritonitis with a positive culture was better in those who received culture-sensitive antibiotics than those who received empirical antibiotics.

Fecal Immunochemical Test as a Screening Method for Colorectal Cancer in University College Hospital Ibadan, Nigeria.

PURPOSE: Colorectal cancer (CRC) is a disease of public health importance because of the increasing incidence of the disease and presentation in advanced stage of the disease in Western Africa. CRC is amenable to screening because of the long course of premalignant lesions before final development of the disease. Despite this, the practice of CRC screening is inadequate at the sites in this study. The fecal immunochemical test (FIT) is one of the recommended noninvasive methods for CRC screening. It has a sensitivity of 96%, specificity of 90%, and an overall accuracy of 95%. We aimed to determine the practicability of FIT for CRC screening in patients aged 40 to 75 years who attended primary care clinics in the University College Hospital, Ibadan, Nigeria. PATIENTS AND METHODS: A total of 422 patients selected by systematic random sampling were recruited and offered free FIT screening. Participants with a positive finding had additional GI examination, including a digital rectal examination, proctoscopy, and colonoscopy, if no lesion was biopsied during proctoscopy. RESULTS: The mean (± standard deviation) age of the respondents was 62 ± 9.61 years. The prevalence of a positive FIT in the study was 10.1%. The FIT was not completed by 3.8% of patients, and the rate of completion of additional evaluation after a positive FIT reduced as the investigations became invasive, with 36.8% and 71.1% noncompletion rates for proctoscopy and colonoscopy, respectively. CONCLUSION: A FIT-based screening for age and risk-appropriate patients is practical in this environment, where the capacity and acceptability of colonoscopy are limited.

Medical Treatment: An Emerging Standard in Acute Appendicitis?

Appendicectomy has been accepted as the gold standard for the management of appendicitis over the years, but there has been an increasing evidence and trend toward the conservative approach to the management of appendicitis. The aim of this review is to search existing literature and to evaluate and compare the conservative and operative approaches to the management of appendicitis. An electronic search of published literature was conducted through Pubmed, Google Scholar, Embase, and Medline using a variety of search items to find relevant observational studies, randomized clinical trials, systematic reviews, and meta-analyses. Bibliographies of selected articles were also analyzed for publications of interest relevant to the scope of the topic. The articles that reported primary outcomes after the management of appendicitis, complications, economic implications, and duration of follow-up were reviewed in detail. The major primary outcomes show a high recurrence rate and failed treatment associated with the conservative management of appendicitis. The other outcomes obtained show that there is an increased incidence of complications associated with operative management. Economic implications and cost-effectiveness analysis show that conservative treatment may be preferred. The length of hospital stay was significantly higher in conservative approach to management; however, shorter time off activities was observed. In general, the conservative management of appendicitis is still regarded as safe, effective, and efficacious, and further research with well-constructed study design, and larger sample size is required.

A symptom-based model to predict colorectal cancer in low-resource countries: Results from a prospective study of patients at high risk for colorectal cancer.

BACKGROUND: Colorectal cancer (CRC) rates in low-resource countries, which typically lack CRC screening programs, are rising. This study determined whether a risk model for patients with rectal bleeding could identify patients with curable CRC. METHODS: This prospective, cross-sectional study evaluated a model constructed from data from 1 hospital and validated at 2 other hospitals. The primary endpoint was the ability of the model to predict CRC, as diagnosed by colonoscopy, from clinical characteristics. The secondary endpoint was to determine the percentage of patients who had CRC. RESULTS: Consecutive patients who were 45 years old or older and had self-reported rectal bleeding for more than 1 week were evaluated. From January 2014 to July 2016, 362 patients answered a questionnaire and underwent colonoscopy. In the validation cohort, 56% of patients with rectal bleeding, weight loss, and changes in bowel habits had CRC, whereas 2% of patients with bleeding alone did. Overall, 18.2% of the patients had CRC, and 8.6% had adenomas. The proportion of CRC patients with potentially curable stage II or III disease was 74%, whereas the historical rate was 36%. The combination of rectal bleeding with both symptoms significantly predicted CRC in the validation set (odds ratio, 12.8; 95% confidence interval, 4.6-35.4; P < .001). CONCLUSIONS: In low-resource settings, patients with rectal bleeding, weight loss, and changes in bowel habits should be classified as high risk for CRC. Patients with a high risk score should be prioritized for colonoscopy to increase the number of patients diagnosed with potentially curable CRC. Cancer 2018;124:2766-2773. © 2018 American Cancer Society.

Microsatellite Instability Is Common in Colorectal Cancer in Native Nigerians.

BACKGROUND: Colorectal cancer (CRC) is the fifth most common cancer in Africa, with significant differences in incidence, biology and clinical behavior from other populations. MATERIALS AND METHODS: We studied prevalence and clinicopathological features of microsatellite instability (MSI) and young onset CRC in 83 archival samples from the University of Ibadan, Nigeria. RESULTS: Nigerian cases of CRC were MSI-high in 43% and MSI-high CRC had significantly lower histological heterogeneity than microsatellite-stable CRC (20% vs. 55% respectively, p=0.046). Presence of signet ring cell differentiation (10-50% of tumor) was significantly higher in younger patients with CRC (<50 years) (odds ratio(OR)=5.93, 95% confidence interval(CI)=1.17-29.95, p=0.038). Poor differentiation (34%), invasive growth (96%), and high prevalence of mucinous (10%) and signet ring cell adenocarcinomas (4%) were among distinct features of Nigerian patients with CRC. CONCLUSION: MSI-high CRC is more common in West Africa and more detailed molecular and genetic analysis is warranted as CRC incidence and mortality continue to increase in the Sub-Saharan Africa.

Emergence of Colorectal Cancer in West Africa: Accepting the Inevitable.

It seems not too long ago that colon and rectal cancer is a "rare" disease in rural Africa; however, over the last 30 years in West Africa, published evidence has shown decade by decade increases in the incidence of colorectal cancer (CRC). Therefore, CRC should now be accepted as a recognized disease in native Africans; nevertheless, we must acknowledge that the incidence is a fraction of what obtains in the developed countries of Europe and America. This presentation will attempt to examine the emergence of CRC within the West African axis over the last four decades.

Diathermy versus Scalpel Incision in a Heterogeneous Cohort of General Surgery Patients in a Nigerian Teaching Hospital.

BACKGROUND: The anecdotal fear of using cautery for surgical incisions is still common in surgical practice despite recent evidences. The aim of this study is to compare the results of electrocautery and the scalpel in skin incisions. MATERIALS AND METHODS: This is a prospective randomized double blind study conducted in the Department of Surgery, of a teaching hospital in Ibadan. Patients were randomized to have either scalpel or electrocautery incisions. The duration used in making the skin incision; the incisional blood loss and the ensuing length and depth of the wound were noted. Postoperative pain; duration of wound healing and the occurrence of surgical site infection were also noted. RESULTS: There were 197 patients consisting of the scalpel group (n = 98) and the electrocautery group (n = 99). The ages ranged from 16 to 73 years. The demography, case distribution and body mass index were similar in both groups. The mode of presentation was predominantly elective. The incision time was shorter in the electrocautery group (P < 0.001). The blood loss was less with the diathermy compared to the scalpel (6.53 ± 3.84 ml vs. 18.16 ± 7.36 ml, P < 0.001). The cumulative numerical rating scale score for pain was 12.65 (standard deviation [SD] 8.06) and 17.12 (SD 9.49) in the diathermy and scalpel groups respectively (P < 0.001). There was no statistically significant difference in wound infection and wound closure (epithelialization time) (P = 0.206). CONCLUSION: The use of electrocautery in making skin incision is associated with reduced incision time, incisional blood loss, and postoperative pain.

Multiple thoracoabdominal impalement injuries.

A 20-year-old male was impaled through the chest, abdomen, and right upper thigh by three 1.5 cm (0.59 in) diameter rods, each 2 m (6.56 ft) in length. The first rod entered below his right nipple, the second through the right hypochondrium, and the third through the right upper thigh. He was transported to the hospital with the rods in situ. This paper provides insight as to how these unusual injuries were managed in a limited-resource environment. Even in a developing country, the challenges posed by multiple impalement injuries can be managed successfully by rapid prehospital transfer, along with an adequate and coordinated hospital team effort.

A review of the current profile of gastric cancer presentation in the university college hospital Ibadan, a tertiary health care institution in the tropics.

INTRODUCTION: Gastric cancer is the fourth commonest malignancy and the second leading cause of cancer-related death. Although gastric carcinoma is less common throughout Africa than in Europe, there are considerable variations in its incidence and pattern. It accounts for about 5% of cancer-related death. It is characterized with significant morbidity and mortality mainly because of late presentation in developing and poor countries. Previous studies on gastric cancer in Ibadan and other West African centres demonstrated the preponderance of distal (pyloric antrum) gastric lesions when compared to proximal (cardia, fundus) lesions. Nevertheless, recent studies in developed nations show that distal gastric lesions are on the decline while there is an increase in the proportion of proximal gastric lesions. OBJECTIVE: The objective of this study is to review the pattern of presentation of patients with gastric carcinoma managed in our surgical division over a 5-year period and to determine changes in the trend in our environment. METHODOLOGY: A retrospective study of all patients with gastric carcinoma between November 2004 and October 2009 was carried out. Simple descriptive analysis was used to characterize the patients' demographic parameters, symptomatology, clinical and investigative findings along with treatment and outcome modalities. RESULTS: There were 49 cases managed by the division over the period under review. The male to female ratio was 1.45:1 with a mean age of 56 years at presentation. Duration of symptom was less than 5 months (20 weeks) in 47.9% of the patients. Dysphagia was present in 12.2% while 52.6% had a history of suspected peptic ulcer disease. There was electrolyte derangement in 31.7% of the patients while 52.6% had anaemia at presentation. Proximal tumours of the gastro-oesophageal region, cardia and the body constituted 51% of the cases; 51.4% of the patients were blood group O as opposed to 28.6% and 20%, respectively, with blood A and B. Thirty-six patients (73.5%) had a histological diagnosis of adenocarcinoma, five patients (10%) had signet ring variant of adenocarcinoma carcinoma, while three patients (6.1%) were each had gastrointestinal stromal tumours or lymphomas. DISCUSSION: Our review shows a peak age in the sixth and seventh decades at presentation. There is a significant increase in the proportion of proximal gastric lesions and a predominance of blood group O. Gastrointestinal stromal tumour and lymphoma should be considered as differential diagnosis. Patients still present late with advanced diseases, and curative treatment is often impossible.

Colorectal carcinoma: why is there a lower incidence in Nigerians when compared to Caucasians?

Carcinoma of the colon and rectum is the 2nd commonest cancer in the United States; the leading cancer being lung cancer. It has been estimated that 130,200 new cases of colorectal cancer will be diagnosed annually while 56,300 sufferers will die from the disease (Murphy et al., 2000). In developing countries especially West Africa, the rate has not yet reached such magnitude. This suggests that there may be factors either anthropomorphic or environmental which may be responsible for this. The paper acknowledges the reduced incidence of colorectal cancer in native West Africans living in Africa and endeavours to highlight the various factors that produce this observation in medical literature. A diligent search through available literature on the aetiology, epidemiology and comparative anthropology of colorectal cancer was done. Internet search using PubMed, British Library Online and Google Scholar was also utilized. The rarity of adenomatous polyposis syndromes in the native West African contributes to the reduced incidence of colorectal cancer. Cancer prevention and cancer-protective factors are deemed to lie in the starchy, high-fiber, spicy, peppery foodstuff low in animal protein which many West African nations consume.

Pheochromocytoma in an accessory adrenal gland: a case report.

Very few cases of pheochromocytoma in functional accessory adrenal glands have been documented in literature. We present a twenty-four year old Nigerian female who presented with pheochromocytoma. Investigations revealed a suprarenal mass, which was diagnosed as an accessory gland adrenal tumour at surgery. This shows that accessory adrenal glands can be a basis for development of pheochromocytoma.

The pattern of fall of serum bilirubin after operative relief of obstructive jaundice. A preliminary report / Perfiles de caída de la bilirrubina sérica luego de corrección quirúrgica de la ictericia obstructiva

This is the beginning of a prospective study on patients who have obstructive jaundice to see how the serum bilirubin falls after operative relief of the obstruction. Seven of such patients have been studied; four had carcinoma of the head of the pancreas while the other three had choledocholithiasis. The patients with carcinoma had relief of the jaundice through a biliary -enteric anastomosis and those with common bile duct stones had choledochotomy with stone extraction which was completed with insertion of a T-tube. Serial bilirubin estimations were then performed post-operatively to chart the pattern and rate of descent of this in each patient. Our observations suggest that the pattern of fall of serum bilirubin after successful decompression of the extra-hepatic biliary tree exhibit a distinct pattern regardless of the surgical procedure performed for the relief of the obstruction.

El presente artículo es el reporte preliminar de un estudio prospectivo de pacientes con ictericia obstructiva, que evalúa la disminución progresiva en los niveles séricos de bilirrubina luego de la corrección quirúrgica de la obstrucción. El estudio incluye 7 pacientes, 4 de ellos con carcinoma en la cabeza del páncreas y los 3 restantes cursaron con coledocolitiasis. Los pacientes con carcinoma fueron sometidos a una anastomosis bilio -entérica con el fin de corregir la ictericia, mientras que los pacientes con cálculos en el conducto biliar fueron sometidos a coledocotomía, extracción de los cálculos biliares e inserción de un tubo en T. Posteriormente, se realizaron numerosas cuantificaciones de los niveles de bilirrubina en suero, para determinar el patrón y la taza de descenso de dichos niveles en cada paciente. Los resultados muestran el patrón de caída de los niveles séricos de bilirrubina luego de la desobstrucción exitosa de las vías biliares extrahepáticas. Tres pacientes mostraron un patrón aberrante a pesar del correcto procedimiento quirúrgico.

Local attitudes, moral obligation, customary obedience and other cultural practices: their influence on the process of gaining informed consent for surgery in a tertiary institution in a developing country.

The process of obtaining informed consent in a teaching hospital in a developing country (e.g. Nigeria) is shaped by factors which, to the Western world, may be seen to be anti-autonomous: autonomy being one of the pillars of an ideal informed consent. However, the mix of cultural bioethics and local moral obligation in the face of communal tradition ensures a mutually acceptable informed consent process. Paternalism is indeed encouraged by the patients who prefer to see the doctor as all-powerful and all-knowing, and this is buttressed by the cultural practice of customary obedience to those 'above you': either in age or social rank. The local moral obligation reassures the patients that those in authority will always look after others placed in their care without recourse to lengthy discussions or signed documentation, while the communal traditions ensure that the designated head of a family unit has the honor and sole responsibility of assenting and consenting to an operation to be carried out on a younger, or female, member of the family. Indeed it is to only a few educated patients that the informed consent process is deemed a shield against litigation by the doctors. This paper later addresses the need for physicians to update their knowledge on the process of informed consent through the attendance of biomedical ethics courses, which should highlight socio-cultural practices that may make this process different from the Western concept, but perfectly acceptable in this setting.

Pyoderma gangrenosum and ulcerative colitis in the tropics / Pioderma gangrenoso e colite ulcerativa nos trópicos

Pyoderma gangrenosum is a rare inflammatory skin condition, characterized by progressive and recurrent skin ulceration. There may be rapidly enlarging, painful ulcers with undermined edges and a necrotic, hemorrhagic base. Disorders classically associated with pyoderma gangrenosum include rheumatoid arthritis, inflammatory bowel disease, paraproteinemia and myeloproliferative disorders. There have been some reports of the occurrence of pyoderma gangrenosum in Africa, and in Nigeria, but only one specifically reported pyoderma gangrenosum in association with ulcerative colitis. We report on a 45-year-old man who presented with pyoderma gangrenosum associated with ulcerative colitis; the second report in Nigeria. The skin lesions were managed with daily honey wound dressings. Oral dapsone and prednisolone were started. The frequency of the bloody diarrhea decreased, and was completely resolved by the second week after admission. The ulcers also showed accelerated healing. The goal of therapy is directed towards the associated systemic disorder, if present.

Pioderma gangrenoso é uma rara forma de inflamação dermatológica, caracterizada por ulceração progressiva e recorrente da pele. Pode ocorrer rápida formação de úlceras dolorosas expansivas, com bordas solapadas e base necrótica e hemorrágica. Condições classicamente associadas com pioderma gangrenoso incluem artrite reumatóide, doença inflamatória intestinal, paraproteinemia e doenças mieloproliferativas. Existem alguns relatos da ocorrência de pioderma gangrenoso na África e na Nigéria, mas apenas um relato específico da associação de pioderma gangrenoso e colite ulcerativa. Os autores relatam o caso de um homem de 45 anos que apresentou pioderma gangrenoso associado a colite ulcerativa, sendo este o segundo relato na Nigéria. As lesões de pele foram tratadas com curativos diários de mel. Foram utilizadas dapsona e prednisona via oral. A freqüência de diarréia sanguinolenta diminuiu e se resolveu completamente até a segunda semana após a admissão. As úlceras também mostraram rápida cicatrização. A meta do tratamento deve abordar também a doença sistêmica associada, quando presente.