San Antonio Woman Magazine
BCMS Physician & Medical Directory 2007
esanantonio.com
South Texas Fitness & Health Magazine!
San Antonio At Home Magazine

 

back to top

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

back to top

Postoperative
Complications Following an Endoscopic Retrograde
Cholangiopancreatography (ERCP)

by Fernando A. Guerra, MD, MPH, FAAP

The following closed claim study is based on an actual malpractice claim from Texas Medical Liability Trust (TMLT). This case illustrates how action or inaction on the part of physicians led to allegations of professional liability, and how risk management techniques may have either prevented the outcome or increased the physician’s defensibility. The ultimate goal in presenting this case is to help physicians practice safe medicine. An attempt has been made to make the material less easy to identify. If you recognize your own claim, please be assured it is presented solely to emphasize the issues of the case.

Presentation
On 13 May, a 69-year-old woman was referred to a gastroenterologist for abdominal pain in her right lower quadrant. A previous abdominal ultrasound was abnormal, indicating a dilated common bile duct.

Physician Action
The gastroenterologist examined the patient and noted tenderness in her lower abdomen and right upper quadrant area. There was no rebound or guarding. The physician also noted that he could feel the caudate lobe of the liver. The physician recommended an endoscopic retrograde cholangiopancreatography (ERCP) and explained the risks, including perforation and pancreatitis. He obtained informed consent for the procedure.

On 16 May, the gastroenterologist performed the ERCP with sphincterotomy at a local hospital. At the conclusion of the procedure note, he stated: “The procedure was very prolonged due to constant inability to
stop motility, and this was complicated by the fact that the air/water valve continuously stuck on the scope, and no matter how we tried to change them out, all of them seemed defective, a problem that we had in the past. Nevertheless, the procedure was successful.”

After the operation, the patient complained of severe bloating and nausea. She was ultimately discharged from the hospital late on 17 May. Later that day, the patient called the gastroenterologist and complained of nausea and vomiting. The gastroenterologist prescribed Phenergan suppositories and instructed her to call if the pain became worse.

The next morning, 18 May, the patient called the gastroenterologist and reported that her symptoms persisted. The gastroenterologist told the patient to go to the emergency department (ED) of the same hospital where the procedure was performed.

Once at the ED, the patient complained of abdominal pain and nausea. She was admitted to the hospital with possible post-ERCP pancreatitis. The results from a CT scan were normal with no evidence of a hepatic abscess. A follow-up CT scan taken on 20 May showed multiple low-density lesions in the lower left
lobe of the liver, most likely representing liver abscesses. Blood culture revealed the patient had developed Pseudomonas sepsis.

The gastroenterologist felt the patient needed more specialized care. On 21 May, she was transferred to another hospital under the care of a liver specialist. The liver specialist placed the patient on aggressive IV antibiotic therapy. Eventually her abdominal tenderness decreased, and she was discharged on 9 June. Her discharge diagnosis included hepatic abscess, transient bilary obstruction, and Pseudomonas sepsis.

The liver specialist saw the patient on a follow-up visit on 13 August. He noted that the patient was recovering remarkably well and was back to normal baseline function. A CT scan revealed significant improvement with only two residual areas of question in the liver. The specialist noted that she had some focal tenderness over the left lower lobe of the liver where the abscess was present.

The liver specialist saw the patient again on 10 September. He was concerned that her white blood count was slowly going up with a differential shift to the right. She was afebrile and no longer had a palpable, tender liver. He indicated that she might need a follow-up CT to reassess the size and location of the abscess.

The liver specialist again saw the patient on 30 September as part of an independent medical exam. He noted the patient was doing well but complained of mild upper quadrant pain and pain radiating into the inguinal area. He recommended the following:• follow-up chemistries, including a liver profile;

• helical CT scan of the liver with IV and oral contrast; and

• a colonoscopy to screen for colorectal cancer and investigate vague abdominal discomfort.

The CT scan of the liver revealed uniform attenuation of the liver without abscess seen. The results from the ultrasound were interpreted as normal.

Allegations
A lawsuit was filed against the gastroenterologist. The plaintiffs alleged that while the ERCP was appropriate, there was no indication for a sphincterotomy. The plaintiff’s main criticism surrounded the gastroenterologist’s decision to continue the surgery after the scope’s air water valve malfunctioned. A lawsuit was also filed against the hospital where the ERCP took place.

Legal Implications
The plaintiff’s expert, a gastroenterologist, argued that the sphincterotomy was unnecessary because he did not believe the common bile duct had a stricture narrow enough to warrant the sphincterotomy. He further criticized the defendant for not stopping the procedure once the air water valves began sticking. He stated if the procedure had been stopped, significant pancreatitis would not have occurred. Though he had never seen it happen, this expert believed the liver abscess was related to the ERCP complications.

The gastroenterologist reviewing this case for the defense argued that the ERCP and sphincterotomy were both indicated. Regarding the equipment malfunction, this expert believed the defendant was obligated to continue the procedure and identify the problem. When the patient returned to the hospital on 18 May, he believed she had pancreatitis caused by a “relative” obstruction of the bile duct. The combination of the pancreatitis and obstructed bile duct caused her liver infection and sepsis.

The liver specialist who treated the patient was supportive of the defendant. He testified that he had encountered similar scope-related problems during an ERCP and that standard procedure requires attempting to fix the problem so the procedure can be completed.

He would only terminate a procedure if he could not fix the equipment. The liver specialist also stated the defendant would have been in the best position to determine if the sphincterotomy was needed. Regarding the pancreatitis, he believed the patient may have had some infectious process prior to the ERCP that was somewhat exacerbated by the ERCP. The liver specialist has not seen this type of liver abscess occur following an ERCP.

Disposition
This case was taken to trial and the jury reached a verdict in favor of the plaintiffs. After the verdict, this case was mediated and settled on behalf of the gastroentrologist. The hospital settled the case before trial.

Risk management considerations
Thorough, accurate documentation benefits the physician in the event of litigation. Describing the stricture and the rationale for subsequently performing the sphincterotomy may have assisted in the defense of this physician. Comprehensive documentation may provide an opportunity to close a claim without an indemnity payment and may avoid a trial such as this, where the jury ruled in favor of the plaintiffs.

Obtaining informed consent is a non-delegable duty of the physician. This is the process whereby the physician educates the patient regarding the risks, benefits, and any alternative forms of treatment. This discussion should be documented in the medical record.

The following is a sample of such documentation:“Advised patient of the need for _____________ related to ____________. Risks, benefits, and alternatives were discussed. Patient reviewed educational materials/instructions and states that he/she understands and agrees to proceed. In my judgment, the patient does understand the treatment plan.”

The information and opinions in this article should not be used or referred to as primary legal sources nor construed as establishing medical standards of care for the purposes of litigation, including expert testimony. The standard of care is dependent upon the particular facts and circumstances of each individual case and no generalization can be made that would apply to all cases. The information presented should be used as a resource, selected and adapted with the advice of your attorney. It is distributed with the understanding that neither Texas Medical Liability Trust nor Texas Medical Insurance Company is engaged in rendering legal services.