In today's world the massive set of data is generated from different organizations throughout the world. This huge and heterogeneous data is called Big Data. Big Data Analytics offers tremendous insights to different organizations especially in healthcare. The traditional database architectures are not up to the mark to face the challenge with huge data, which is pouring into organizations today, and it creates a big havoc. Big Data plays an important role in achieving predictive analysis in the healthcare domain. Big Data can handle huge explosion of data, which is found in many medical organizations. Big Data Analytics plays a major role in solving issues and challenges arises in healthcare domain. This paper gives an overview of storing and retrieval methods, Big Data tools and techniques used in healthcare clouds, role of Big Data Analytics in healthcare and discusses the benefits, outlooks in nascent fields of predictive analytics, faces challenges and provides solutions. The results also shows the astronomical role of Big Data Analytics in healthcare.
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Reddy et al. (2016) studied this question.