Background and Aims:
Appropriate volume assessment and fluid management can prevent maternal deaths in the severely pre-eclamptic (SPE) parturients. We planned a systematic review and meta-analysis (MA) to evaluate the role and ability of point-of-care ultrasound (POCUS) in the assessment of volume status and early detection of lung oedema in an SPE parturient.
Methods:
An e-literature search was done from several databases. Data were extracted under five domains including POCUS-derived parameters like echo comet score (ECS), lung ultrasound (LUS) scores, B-patterns, optic nerve sheath diameter (ONSD), E/e' ratio, presence of pleural effusion, pulmonary interstitial syndrome and pulmonary congestion. The risk of bias was assessed. Extracted data were analysed using MetaXL and Revman 5.3. Heterogeneity in the studies was evaluated using the Cochrane Q test and I
2
statistics. Funnel plots were used for the assessment of publication bias.
Results:
Seven prospective studies including 574 parturients (including 396 pre-eclamptics) were selected. POCUS included lung, optic nerve, cardiac and thoracic US. In two studies, the ECS and LUS scores pre-delivery were higher in pre-eclamptics. Two studies found a mean ONSD of 5–5.84 mm before delivery. MA revealed a significantly lower mean ECS score at post-delivery than pre-delivery, and the summary prevalence of B-pattern and pleural effusion among SPE parturients was found to be 0.28 (0.03–0.84) and 0.1 (0–0.2), respectively. A good correlation was observed between B-line patterns and diastolic dysfunction (increased E/e' ratio), LUS score and thoracic fluid content, ONSD and ECS in individual studies.
Conclusion:
POCUS parameters can be useful as early markers of fluid status and serve as useful tools in the precise clinical management of pre-eclampsia.
Newer modalities in labour analgesia and anaesthesia for caesarean section including regional anaesthesia techniques and airway management are emerging constantly. Techniques such as point of care ultrasound, especially of the lungs and stomach and point of care tests of coagulation based on viscoelastometry are about to revolutionise perioperative obstetric care. This has improved the quality of care thereby ensuring good perioperative outcomes in the parturient with comorbidities. Critical care for obstetrics is an emerging field that requires a multidisciplinary approach with obstetricians, maternal-foetal medicine experts, intensivists, neonatologists, and anaesthesiologists working together with enhanced preparedness and uniform protocols. Newer techniques and concepts of understanding have thus been established in the traditional speciality of obstetric anaesthesia over the last decade. These have improved maternal safety and neonatal outcomes. This article touches upon some recent advances that have made a significant impact in the field of obstetric anaesthesia and critical care.
Patient safety, improved quality of care, and better patient satisfaction and functional outcomes are currently the topmost priorities in regional anaesthesia (RA) and all advancements in RA move in this direction. Ultrasonography-guided central neuraxial and peripheral nerve blocks, intracluster and intratruncal injections, fascial plane blocks, diaphragm-sparing blocks, use of continuous nerve block techniques, and continuous local anaesthetic wound infiltration catheters are now topics of popular clinical interest. The safety and efficacy of nerve blocks can be improved with the help of injection pressure monitoring and the incorporation of advanced technology in the ultrasound machine and needles. Novel procedure-specific and motor-sparing nerve blocks have come up. The anaesthesiologist of the current era, with a good understanding of the sonoanatomy of the target area and the microarchitecture of nerves, along with the backup of advanced technology, can be very successful in performing RA techniques. RA is rapidly evolving and revolutionising the practice of anaesthesia.
The competency-based medical education (CBME) curriculum for undergraduate medical education recently rolled out by the regulating body gives the much-needed importance to the subject of Anaesthesiology, which in the earlier traditional curriculum was unappreciated. The contributions of the Anaesthesiology faculty to the new curriculum include the conduct of basic life support sessions in the foundation course followed by the teaching of 46 stand-alone, subject-specific topics and 17 integrated topics in the next 54 months. The anaesthesiologists will play a vital role in sensitising the 1
st
-year students to the hospital environment during early clinical exposure sessions by facilitating their visits to operation theatres and critical care areas. Anaesthesiologists are the leaders in the establishment and maintenance of the skill laboratories and in imparting simulation-based training for teaching crisis management, patient management in pandemics and lifesaving skills; nevertheless, there is a definite scope for further enhancement of the anaesthesiologist's role in the CBME.
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