Authors who are submitting a research manuscript having patients study data have to use information regarding a patient in their paper. But according to the stipulations of International Committee of Medical Journal Editors (ICMJE), such information cannot be used in manuscripts unless the author obtains informed consent from the patients/next-in-kind. Informed consent from the individual/patients who are included in the:

1. For their inclusion in the study
2. For publishing their identity information (text, images etc.)
3. For publishing their details

It is mandatory that in “Materials and Method section” author must clearly state that “Informed consent was obtained from all patients for being included in the study”. If the consent is not obtained, the reason should be mentioned. It should also be made clear whether the consent was obtained in the written or oral form. If it is in oral form, reasons for not getting it in written form should be given, along with the approval of the Institutional Review Board for the use of the same with proper documentary evidence for the same.

Please refer
Journals’ Best Practices for Ensuring Consent for Publishing Medical Case Reports: guidance from COPE
DOI: https://doi.org/10.24318/cope.2019.1.6

http://www.icmje.org/recommendations/browse/roles-and-responsibilities/protection-of-research-participants.html