diff --git a/invivos/app.R b/invivos/app.R
index 60273b6..fb95038 100755
--- a/invivos/app.R
+++ b/invivos/app.R
@@ -46,6 +46,7 @@ ui <- fluidPage(
                          uiOutput('cutoffUI'),
                          checkboxInput("filter_stats","Filtrar Estadística"),
                          checkboxInput("increase_volume","Usar Incremento de Volumen"),
+                         checkboxInput("operated","Cortar al operar", value = TRUE),
                          downloadButton("downloadVolume", "Descargar Volúmenes")
                        ),
                        mainPanel(
@@ -448,7 +449,18 @@ server <- function(input, output) {
         Observations=""
       )
       table<-rbind(table, basal)
+      
       if (input$vacc == "Sí"){
+        firstoper<- filter(table, !is.na(substr(Observations,1,1)) & substr(Observations,1,1) == "*") %>% 
+          select(DayPostInoc, Side) %>% unique() %>% 
+          group_by(Side) %>% summarise(FirstOper=min(DayPostInoc))
+        
+        if (input$operated == TRUE){
+          for (i in 1:nrow(firstoper)){
+            table<-table %>% filter(DayPostInoc < firstoper$FirstOper[i] | Side != firstoper$Side[i])
+          } 
+        }
+        
         ggplot(table, aes(DayPostInoc, Volume, color=Group, group=Group))+
           geom_errorbar(stat="summary", width=0.05)+
           geom_line(stat="summary")+
@@ -459,6 +471,15 @@ server <- function(input, output) {
           scale_x_continuous(expand = expansion(mult = c(0,0.05)), limits = c(0, (round(max(table$DayPostInoc) / 5)+1)*5))+
           theme_bw()  
       }else{
+        
+        firstoper<- filter(table, !is.na(substr(Observations,1,1)) & substr(Observations,1,1) == "*") %>% 
+          pull(DayPostInoc) %>% min(na.rm = T)
+        print(firstoper)
+        
+        if (input$operated == TRUE){
+          table<-table %>% filter(DayPostInoc < firstoper)
+        }
+
         ggplot(table, aes(DayPostInoc, Volume, color=Group, group=Group))+
           geom_errorbar(stat="summary",width=0.05)+
           geom_line(stat="summary")+
@@ -681,6 +702,15 @@ server <- function(input, output) {
       if (input$fig_id %in% c("Cinética Grupo", "Cinética Individual")){
         if (input$fig_id == "Cinética Grupo"){
           if (input$vacc == "Sí"){
+            firstoper<- filter(table, !is.na(substr(Observations,1,1)) & substr(Observations,1,1) == "*") %>% 
+              select(DayPostInoc, Side) %>% unique() %>% 
+              group_by(Side) %>% summarise(FirstOper=min(DayPostInoc))
+            
+            if (input$operated == TRUE){
+              for (i in 1:nrow(firstoper)){
+                table<-table %>% filter(DayPostInoc < firstoper$FirstOper[i] | Side != firstoper$Side[i])
+              } 
+            }
             std<-function(x, na.rm=T){sd(x, na.rm=na.rm)/sqrt(length(x))}
             errbar<-table %>% group_by(Group,Side,DayPostInoc) %>% 
               summarise(mean=mean(Volume, na.rm=T), std=std(Volume)) %>% 
@@ -700,6 +730,13 @@ server <- function(input, output) {
               geom_segment(data=errbar, aes(y=mean+std, yend=mean+std,
                                             x=x,xend=xend))
           }else{
+            firstoper<- filter(table, !is.na(substr(Observations,1,1)) & substr(Observations,1,1) == "*") %>% 
+              pull(DayPostInoc) %>% min(na.rm = T)
+            print(firstoper)
+            
+            if (input$operated == TRUE){
+              table<-table %>% filter(DayPostInoc < firstoper)
+            }
             std<-function(x, na.rm=T){sd(x, na.rm=na.rm)/sqrt(length(x))}
             errbar<-table %>% group_by(Group, DayPostInoc) %>% 
               summarise(mean=mean(Volume, na.rm=T), std=std(Volume)) %>%