▁potential ▁or ▁developing ▁issues ▁of ▁concern . ▁These ▁may ▁include ▁d ilation ▁of ▁the ▁es oph ag us , ▁an ▁en larg ed ▁p ouch , ▁pro lapsed ▁st om ach ▁( when ▁part ▁of ▁the ▁st om ach ▁moves ▁into ▁the ▁band ▁where ▁it ▁does ▁not ▁belong ), ▁er os ion ▁or ▁migration . ▁Re fl ux ▁type ▁sympt oms ▁may ▁indicate ▁too ▁great ▁a ▁restriction ▁and ▁further ▁assess ment ▁may ▁be ▁required . ▁ ▁Under ▁some ▁circumstances , ▁fluid ▁is ▁removed ▁from ▁the ▁band ▁prior ▁to ▁further ▁investigation ▁and ▁re - evalu ation . ▁In ▁other ▁cases ▁further ▁surg ery ▁may ▁be ▁required ▁( e . g . ▁removal ▁of ▁the ▁band ), ▁should ▁g astr ic ▁er os ion ▁or ▁a ▁similar ▁comp lication ▁be ▁detected . ▁Some ▁health ▁pract ition ers ▁adjust ▁the ▁band ▁without ▁the ▁use ▁of ▁X - ray ▁control ▁( flu or os copy ). ▁In ▁these ▁cases , ▁the ▁doctor ▁ass esses ▁the ▁patient ' s ▁weight ▁loss ▁and ▁potential ▁ref lex ▁sympt oms ▁described ▁by ▁the ▁patient , ▁such ▁as ▁heart burn , ▁reg urg itation , ▁or ▁ch est ▁pain . ▁From ▁this ▁information , ▁the ▁doctor ▁dec ides ▁whether ▁a ▁band ▁adjust ment ▁is ▁necessary . ▁Ad just ments ▁are ▁often ▁indicated ▁if ▁a ▁patient ▁has ▁reg ained ▁weight , ▁if ▁their ▁weight ▁loss ▁has ▁le ve led ▁off , ▁or ▁if ▁the ▁patient ▁has ▁a ▁distinct ▁feeling ▁that ▁food ▁is ▁difficult ▁to ▁move ▁through ▁the ▁st om ach . ▁ ▁During