Strategies for Digital Clinical Teaching During the COVID Pandemic: A Scoping Review.

Widespread "lockdowns" during the COVID pandemic in 2020-2021 restricted medical students' access to patients. We used a scoping review with exploratory thematic synthesis to examine how reports of digital clinical teaching during the first year of the COVID pandemic could inform digital clinical teaching in the post-pandemic world. We looked at strategies used and outcomes reported, lessons learned about how best to use digital methods for clinical teaching, and learning theories used. The eighty-three articles included in the final review fell into four groups. These were telehealth interventions; virtual case-based teaching; multi-modal virtual rotations; and a small group of "other" strategies. Telehealth reports indicated that COVID has probably accelerated the adoption of telehealth, and these skills will be required in future curricula. Engagement with virtual case-based teaching was problematic. Virtual rotations were particularly valued in specialties that relied on visual interpretation such as radiology and dermatology. For general clinical specialties, digital clinical teaching was not a satisfactory substitute for real clinical exposure because it lacked the complexity of usual clinical practice. Sixty-seven articles reported students' reactions only, and 16 articles reported a change in knowledge or skills. Demands on instructors were considerable. Few studies were theorized and none tested theory, which limited their transferability. While telehealth teaching may be a valuable addition to some curricula, digital clinical teaching is unlikely substantially to replace exposure to real patients outside of specialties that rely on visual interpretation. High demands on instructors suggest little potential for new, scalable digital clinical offerings after COVID.

Capacity-building partnerships for surgical post-graduate training in low- and middle-income countries: a scoping review of the literature with exploratory thematic synthesis.

In recent years, international surgical programmes have moved away from vertical service delivery and towards collaborative, capacity-building partnerships. The aim of this review was to provide a map of the current literature on international surgical training partnerships together with an exploration of factors influencing their implementation. Three bibliographic databases were searched for peer-reviewed reports of surgical training partnerships between organizations in high- and low or middle-income countries to July 2018. Reports were sorted in an iterative fashion into groups of similar programmes, and data were extracted to record the intervention strategies, context, financing, reported results and themes around implementation. Eighty-six reports were grouped into five types of programme: full residency training, bi-institutional twinning partnerships, diagonal/sub-specialist programmes, focused interventions or courses and programmes using remote support. Few articles were written from the perspective of the low-middle income partner. Full residency programmes and some diagonal/sub-specialist programmes report numbers trained while twinning partnerships and focused interventions tend to focus on process, partners' reactions to the programme and learning metrics. Two thematic networks emerged from the thematic synthesis. The first made explicit the mechanisms by which partnerships are expected to contribute to improved access to surgical care and a second identified the importance of in-country leadership in determining programme results. Training partnerships are assumed to improve access to surgical care by a number of routes. A candidate programme theory is proposed together with some more focused theories that could inform future research. Supporting the development of the surgical leadership in low- and middle-income countries is key.

The role of a multidisciplinary student team in the community management of chronic obstructive pulmonary disease.

OBJECTIVE: To determine whether a community-based, multidisciplinary team consisting of home-based caregivers and supervised students could improve the functional status and quality of life of patients living with chronic obstructive pulmonary disease (COPD) in a low-income, peri-urban setting in South Africa. METHODS: This was a quasi-experimental study conducted over three months. Attention was paid to health literacy, inhaler technique, respiratory conditioning and nutrition. RESULTS: Health literacy was poor and most patients were not using their inhalers correctly. Five of 12 patients found exercising challenging and withdrew from the study early. In the remaining seven patients, statistically significant improvements in FEV1%, and quality of life scores were seen at three months. Improvements in exercise tolerance and BODE prognostic index did not reach statistical significance. CONCLUSION: A home-based multidisciplinary student team can improve the functional status and the quality of life in patients living with COPD in a low-income setting. This approach offers a suitable model for community-based service learning.

Is continuous positive airway pressure a feasible treatment modality for neonates with respiratory distress syndrome in a rural district hospital?

OBJECTIVES: To assess the feasibility of using nasal continuous positive airway pressure (nCPAP) in neonates with respiratory distress syndrome at district hospital level by assessing in-hospital survival rates and the impact on transfer rates. METHODS: A prospective database was kept from 2008 to record the outcomes of neonates with mild to moderate respiratory distress treated with nCPAP at a South African rural district hospital. Transfer rates were compared for the two years before and after introduction of neonatal nCPAP using additional retrospective data from the Perinatal Problem Identification Programme (PPIP) for comparison. Outcomes for nCPAP neonates for the first 5 years after programme implementation are presented. RESULTS: One hundred and twenty-eight babies were treated with nCPAP over the study period. Nine of 13 extremely low birth weight (<1000 g) babies died. Eighty-four (72.4%) of the babies weighing >1000 g were successfully treated, 16 (13.8%) were transferred after trial of nCPAP and 15 (12.9%) died in hospital. Most of the transferred babies and deaths had co-morbidities. There was a significant reduction in transfer rates of low birth weight babies from 21 to 7% in the first 2 years following the introduction of nCPAP. CONCLUSIONS: nCPAP for neonatal respiratory distress at the district hospital is feasible, safe and offers the potential for significant cost savings.

Operative surgery at the district hospital.

Surgical disease is an important cause of preventable mortality and morbidity, but it is not clear how best to deliver surgical services to under-served rural populations in poorer countries. South Africa's policy is to restructure heath services, with district hospitals and health centres becoming the primary delivery vehicle for quality health care to all South Africans. Among other things this involves defining what services a district hospital should be expected to provide, including the district hospital service package (DHSP). Many felt that the list of district hospital surgical procedures is unrealistic, and it is not clear to what extent the package is deliverable. We therefore studied the operative surgery undertaken at district hospital level in a single region with well-organised primary health care services.

Endoscopic components separation for abdominal compartment syndrome.

BACKGROUND: Sustained intraabdominal pressures of 14 to 20 mm Hg have significant pathophysiological consequences, but there is currently no satisfactory low-morbidity procedure appropriate for intervention early in the disease process of abdominal compartment syndrome (ACS). The anatomical principles of abdominal wall components separation were used to develop a percutaneous procedure that increased abdominal capacity and decreased abdominal pressure. METHODS: Using a porcine model, we determined abdominal capacity changes by helium insufflation. Corn oil was then used to create an episode of sustained intraabdominal hypertension and changes in intraabdominal pressure and intestinal mucosal oxygenation were determined. RESULTS: Endoscopic abdominal wall components separation (EACS) increased abdominal capacity by 1 L (from 0.89 +/- 0.39 L to 1.95 +/- 0.48 L; P <0.001). During intraabdominal hypertension, EACS decreased abdominal pressure by 31.6% (from 15.9 +/- 2.1 to 11.0 +/- 1.5 mm Hg; P <0.001). Intestinal PO(2) was increased by 61% (18.8 +/- 11.4 to 30.3 +/- 11.7; P = 0.012) CONCLUSIONS: A minimally invasive procedure (EACS) is feasible and has demonstrated effectiveness in a porcine model of ACS.

Surgical management of pancreaticocutaneous fistula.

Although enteric drainage of the fistula tract is a widely accepted treatment for pancreaticocutaneous fistula, few data have been published on the outcome of this procedure. We conducted a retrospective chart review of 30 patients with pancreaticocutaneous fistula who underwent surgical management at a single institution over a 13-year period. The operative morbidity rate was 30%. Overall the incidence of recurrent ductal leaks requiring further intervention was 23%. Six of seven patients who had a recurrence had an ongoing inflammatory pathology, and three of seven had pancreas divisum. Recurrence was most likely when cystenterostomy was used. Enteric drainage of pancreaticocutaneous fistulas is not always curative. Fistulojejunostomy gives a better outcome than cystenterostomy. Recurrence may be expected in patients with continuing inflammatory ductal pathology.

Short-chain fatty acids stimulate colonic transit via intraluminal 5-HT release in rats.

We studied whether physiological concentration of short-chain fatty acids (SCFAs) affects colonic transit and colonic motility in conscious rats. Intraluminal administration of SCFAs (100-200 mM) into the proximal colon significantly accelerated colonic transit. The stimulatory effect of SCFAs on colonic transit was abolished by perivagal capsaicin treatment, atropine, hexamethonium, and vagotomy, but not by guanethidine. The stimulatory effect of SCFAs on colonic transit was also abolished by intraluminal pretreatment with lidocaine and a 5-hydroxytryptamine (HT)(3) receptor antagonist. Intraluminal administration of SCFAs provoked contractions at the proximal colon, which migrated to the mid- and distal colon. SCFAs caused a significant increase in the luminal concentration of 5-HT of the vascularly isolated and luminally perfused rat colon ex vivo. It is suggested that the release of 5-HT from enterochromaffin cells in response to SCFAs stimulates 5-HT(3) receptors located on the vagal sensory fibers. The sensory information is transferred to the vagal efferent and stimulates the release of acetylcholine from the colonic myenteric plexus, resulting in muscle contraction.

Pancreatic Fistula.

External and internal pancreatic fistulas have a different etiology and natural history. Approximately 50% of internal and 70% to 90% of external pancreatic fistulas can be expected to heal with nonoperative management. Nonclosure is predicted by anatomic factors, which may be defined at endoscopic retrograde cholangiopancreatography or by CT if disconnected pancreatic segments are seen. Enteral nutrition beyond the ligament of Treitz is probably as effective as total parenteral nutrition in reducing fistula output. Octreotide reduces output and, possibly, time to closure. It does not increase the incidence of closure, and there is no convincing evidence that it prevents significant postoperative leaks. Endoscopic stenting has been reported to be effective treatment for side leaks, particularly when associated with stenoses or calculi. However, it is not widely available and has a significant complication rate related to pancreatic sphincterotomy and stent blockage. Surgical treatment is indicated for end leaks with a disconnected pancreatic segment. The choice of appropriate procedure is important. Percutaneous interventional therapies are emerging as options for treatment of end leaks but are still investigational.