Deciphering the inflection points to achieve proficiency for each procedure step during training in laparoscopic appendicectomy.

BACKGROUND: Laparoscopic appendicectomy is a common procedure early in surgical training. A minimum number is usually required for certification in general surgery. However, data on proficiency are scarce. This study aimed to investigate steps towards proficiency in laparoscopic appendicectomy. METHODS: This was a prospective observational cohort study of laparoscopic appendicectomies performed by junior trainees under supervision scored on a six-point performance scale. Structured assessment was done within a defined programme. Procedures performed for uncomplicated appendicitis in adults were included. The procedures were evaluated with LOWESS graphs generated to investigate inflection points. Factors associated with proficiency rates were reported with odds ratios and 95 per cent confidence intervals. RESULTS: In total 142 laparoscopic procedures were included for 19 trainees (58 per cent female). The cumulative number of procedures during the study was a median of 20 (i.q.r. 8-33). For overall proficiency, an inflection point occurred at 30 procedures. Proficiency rate increased from 51 per cent for 30 or fewer procedures to 93 per cent for more than 30 procedures (odds ratio 11.9 (95 per cent c.i. 3.4 to 40.9); P < 0.001). Inflection points for proficiency for each procedure step varied considerably, with lowest numbers (fewer than 15 procedures) for removing the specimen, and highest for dividing the mesoappendix (more than 55 procedures). Operating time was significantly reduced by a median of 7 minutes after 30 procedures, from median 62 (i.q.r. 25-120) minutes to median 55 (i.q.r. 30-110) minutes for more than 30 procedures. CONCLUSION: For junior trainees, variation in proficiency is related to specific procedure steps. Targeted training on specific procedure skills may reduce numbers needed to achieve proficiency in laparoscopic appendicectomy during training.

Establishment of functional residual capacity at birth: Observational study of 821 neonatal resuscitations.

AIM OF THE STUDY: Establishing functional residual capacity (FRC) during positive pressure ventilation (PPV) of apnoeic neonates is critical for survival. This may be difficult due to liquid-filled airways contributing to low lung compliance. The objectives were to describe initial PPV, changes in lung compliance and establishment of FRC in near-term/term neonates ≥36 weeks gestation at birth. METHODS: Observational study of all neonatal resuscitations between 01.07.13 and 30.06.18 in a Tanzanian referral hospital. Perinatal events and characteristics were observed and recorded by trained research assistants. PPV were performed using self-inflating bag-masks without positive end-expiratory pressure (PEEP). Ventilation signals (pressure/flow), expired CO2 (ECO2) and heart rate were recorded by resuscitation monitors. RESULTS: 19,587 neonates were born, 1451 received PPV, of these 821 of median (p25, p75) birthweight 3180 (2844, 3500) grams and gestation 38 (37, 40) weeks had ≥20 ventilations and complete datasets. There was a significant increase in expired volume (from 3.3 to 6.0 ml/kg), ECO2 (0.3-2.4%), lung compliance (0.13-0.19 ml/kg/mbar) and heart rate (109-138 beats/min) over the first 20 PPVs. Inflation volume, time, and peak inflation pressure (PIP) were stable around 12-13 ml/kg, 0.45 s, and 36 mbar, respectively. CONCLUSIONS: The combination of increasing expired volumes, ECO2, and heart rate with decreasing inflation/expired volume ratios and constant PIP, suggests establishment of FRC during the first 20 PPVs in near-term/term neonates using a self-inflating bag-mask without PEEP, the most common device worldwide for ventilating non-breathing neonates. Initial lung compliance is low, and with short inflation times, higher than recommended PIP seem necessary to deliver adequate tidal volumes.

Predictors of 24-h outcome in newborns in need of positive pressure ventilation at birth.

BACKGROUND: Birth asphyxia, defined as 5-minute Apgar score <7 in apneic newborns, is a major cause of newborn mortality. Heart rate (HR) response to ventilation is considered an important indicator of effective resuscitation. OBJECTIVES: To describe the relationship between initial HR in apneic newborns, HR responses to ventilation and 24-h survival or death. METHODS: In a Tanzanian hospital, data on all newborns ≥34 weeks gestational age resuscitated between June 2013-January 2017 were recorded using self-inflating bags containing sensors measuring ventilation parameters and expired CO2, dry-electrode electrocardiography sensors, and trained observers. RESULTS: 757 newborns of gestational age 38 ±â€¯2 weeks and birthweight 3131 ±â€¯594 g were included; 706 survived and 51 died. Fetal HR abnormalities (abnormal, undetectable or not assessed) increased the risk of death almost 2-fold (RR = 1.77; CI: 1.07, 2.96, p = 0.027). For every beat/min increase in first detected HR after birth the risk of death was reduced by 2% (RR = 0.98; CI: 0.97, 0.99, p < 0.001). A decrease in HR to <100 beats/minute when ventilation was paused increased the risk of death almost 2-fold (RR = 1.76; CI: 0.96, 3.20, p = 0.066). An initial rapid increase in HR to >100 beats/min in response to treatment reduced the risk of dying by 75% (RR = 0.25; CI: 0.14, 0.44, p < 0.001). A 1% increase in expired CO2 was associated with 28% reduced risk of death (RR = 0.72; CI: 0.62,0.85, p < 0.001). CONCLUSIONS: The risk of death in apneic newborns can be predicted by the fetal HR (absent or abnormal), initial newborn HR (bradycardia), and the HR response to ventilation. These findings stress the importance of reliable fetal HR monitoring during labor and providing effective ventilation following birth to enhance survival.

Factors affecting effective ventilation during newborn resuscitation: a qualitative study among midwives in rural Tanzania.

BACKGROUND: Intrapartum-related hypoxia accounts for 30% of neonatal deaths in Tanzania. This has led to the introduction and scaling-up of the Helping Babies Breathe (HBB) programme, which is a simulation-based learning programme in newborn resuscitation skills. Studies have documented ineffective ventilation of non-breathing newborns and the inability to follow the HBB algorithm among providers. OBJECTIVE: This study aimed at exploring barriers and facilitators to effective bag mask ventilation, an essential component of the HBB algorithm, during actual newborn resuscitation in rural Tanzania. METHODS: Eight midwives, each with more than one year's working experience in the labour ward, were interviewed individually at Haydom Lutheran Hospital, Tanzania. The audio recordings were transcribed and translated into English and analysed using qualitative content analysis. RESULTS: Midwives reported the ability to monitor labour properly, preparing resuscitation equipment before delivery, teamwork and frequent ventilation training as the most effective factors in improving actual ventilation practices and promoting the survival of newborns. They thought that their anxiety and fear due to stress of ventilating a non-breathing baby often led to poor resuscitation performance. Additionally, they experienced difficulties assessing the baby's condition and providing appropriate clinical responses to initial interventions at birth; hence, further necessary actions and timely initiation of ventilation were delayed. CONCLUSIONS: Efforts should be focused on improving labour monitoring, birth preparedness and accurate assessment immediately after birth, to decrease intrapartum-related hypoxia. Midwives should be well prepared to treat a non-breathing baby through high-quality and frequent simulation training with an emphasis on teamwork training.

The relation between given volume and heart rate during newborn resuscitation.

BACKGROUND: During delivery room resuscitation of depressed newborns, provision of appropriate tidal volume (TV) with establishment of functional residual capacity (FRC) is essential for circulatory recovery. Effective positive pressure ventilation (PPV) is associated with a rapid increase in heart rate (HR). The relationship between delivery of TV and HR responses remains unclear. OBJECTIVES: The study objectives were to determine (1) the relationship between a given TV during initial PPV and HR responses of depressed newborns, and (2) the optimal delivered TV associated with a rapid increase in HR. METHODS: In a Tanzanian rural hospital, ventilation and ECG signals were recorded during neonatal resuscitation and stored in Neonatal Resuscitation Monitors. Resuscitators without positive end-expiratory pressure were used for PPV. No oxygen was used. Perinatal events were observed and recorded by research assistants. RESULTS: 215 newborns of gestational age 37.3±1.9 weeks and birth weight 3115±579g were included. There was a non-linear relationship between delivered TV and HR increase. TV of 9.3ml/kg produced the largest increase in HR during PPV. Frequent interruptions of PPV sequences to provide stimulation/suctioning occurred in all cases and were associated with further HR increases, especially for newborns with initial HR<100 beats/minute. CONCLUSIONS: There was a consistent positive relationship between HR increase and delivered TV. The unanticipated finding of a further increase in HR with PPV pauses to provide stimulation/suctioning suggests that most newborns were in primary rather than secondary apnea.

Timing of cord clamping in relation to start of breathing or ventilation among depressed neonates-an observational study.

OBJECTIVES: The optimal timing of cord clamping (CC) in nonbreathing neonates needing stabilisation/resuscitation remains unclear. The objective was to describe the relationship between time to CC, initiation of breathing or positive pressure ventilation (PPV) after stimulation/suction and 24-hour neonatal mortality/morbidity. DESIGN: Observational study. SETTING: A rural Tanzanian referral hospital. POPULATION: Depressed nonbreathing newborns. METHODS: Trained research assistants have observed every delivery (November 2009 through January 2014) using stop-watches and recorded data including fetal heart rate; time intervals from birth to CC and start of breathing or PPV and perinatal characteristics. MAIN OUTCOME MEASURES: Twenty-four-hour neonatal outcome (dead, admitted, normal). RESULTS: There were 19 863 liveborn infants; 16 770 (84.4%) initiated spontaneous respirations, 3093 (15.6%) received stimulation/suctioning to initiate breathing. However, 1269 (41.0%) neonates failed to breath and received PPV at 98 ± 66 seconds and CC at 39 ± 35 seconds after birth. Adverse outcomes in neonates receiving PPV included 126 (9.9%) deaths and 100 (7.8%) neonatal admissions. In 1146/1269 (90%) neonates, CC occurred before PPV and was associated with 209 (18%) deaths/admissions. In 98 (8%) neonates, CC followed initiation of PPV with 14 (14%) deaths/admissions (P = 0.328). By logistic modelling, initiation of PPV before versus after CC was not associated with death/admission when adjusted for time to PPV. The risk for death/admission increased by 12% for every 30-second delay in PPV (P = 0.001). CONCLUSIONS: This observational study failed to demonstrate any relationship between time to CC and onset of breathing or initiation of PPV following stimulation/suction, and 24-hour outcome. Delay in initiation of PPV was significantly associated with death/admission. TWEETABLE ABSTRACT: No relationship between time to cord clamp, breathing or ventilation and 24-hour deaths in depressed neonates.

Resuscitation in resource-limited settings.

Intrapartum-related hypoxia leading to deaths and disabilities continues to be a global challenge, especially in resource-limited settings. Primary prevention during labour is likely to have a significant impact, but secondary prevention with focus on immediate basic stabilization at birth can effectively reduce a large proportion of these adverse outcomes as demonstrated in the resource-rich settings. Infants who fail to initiate and establish spontaneous respirations at birth often respond to early interventions such as drying, stimulation, clearing the airways, as well as bag mask ventilation applied within the first minute after birth. Simple resuscitation education such as 'Helping Babies Breathe', which focuses on the very basic steps and pays attention to comprehensive program development with local ownership and accountability, can help transfer competency into clinical practice and lead to sustainable programs impacting neonatal mortality and morbidity.

A one-day "Helping Babies Breathe" course improves simulated performance but not clinical management of neonates.

OBJECTIVE: "Helping Babies Breathe" (HBB) is a simulation-based one-day course developed to help reduce neonatal mortality globally. The study objectives were to (1) determine the effect on practical skills and management strategies among providers using simulations seven months after HBB training, and (2) describe neonatal management in the delivery room during the corresponding time period before/after a one-day HBB training in a rural Tanzanian hospital. METHODS: The one-day HBB training was conducted by Tanzanian master instructors in April 2010. Two simulation scenarios; "routine care" and "neonatal resuscitation" were performed by 39 providers before (September 2009) and 27 providers after (November 2010) the HBB training. Two independent raters scored the videotaped scenarios. Overall "pass/fail" performance and different skills were assessed. During the study time period (September 2009-November 2010) no HBB re-trainings were conducted, no local ownership was established, and no HBB action plans were implemented in the labor ward to facilitate transfer and sustainability of performance in the delivery room at birth. Observational data on neonatal management before (n=2745) and after (n=3116) the HBB training was collected in the delivery room by observing all births at the hospital during the same time period. RESULTS: The proportion of providers who "passed" the simulated "routine care" and "neonatal resuscitation" scenarios increased after HBB training; from 41 to 74% (p=0.016) and from 18 to 74% (p≤0.0001) respectively. However, the number of babies being suctioned and/or ventilated at birth did not change, and the use of stimulation in the delivery room decreased after HBB training. CONCLUSION: Birth attendants in a rural hospital in Tanzania performed significantly better in simulated neonatal care and resuscitation seven months after one day of HBB training. This improvement did not transfer into clinical practice.

[Symphysiotomy. A thought-provoking example of appropriate technique in the Third World]. / Symfysiotomi. Et tankevekkende eksempel på hensiktsmessing teknikk i den tredje verden.

Cutting through the symphysis pubis cartilage as a means of widening the birth canal during long, drawn-out deliveries was probably common in Europe at the turn of the century and presumably occurred even later. As a result of progress in hygiene and clinical practice, Caesarean section has become much more common in such situations. In developing countries, where supervision of pregnant women is non-existent or extremely poor, Caesarean section can be a dangerous operation. Mortality figures around 1-3% are common, and the women are left with the unfavourable prognosis of a uterine scar. Therefore, symphysiotomy is still practised in settings where neither hygiene nor material resources permit. Caesarean section, because it is simple to perform and makes a negligible demand on resources.