Lynn Weir says people should be able to research their surgeon before going under the knife.

A woman whose sister died after a failed surgery is calling for the case outcomes of individual surgeons to be made public.

Picton woman Lynn Weir's sister Rachel Riddell, 31, died hours after former Blenheim surgeon Dr Michael Parry removed her gall bladder in 2011.

Weir spoke out about the need for greater transparency after the coroner closed her investigation into Riddell's death and ruled out a public inquiry.

DEREK FLYNN/FAIRFAX NZ Former Wairau Hospital surgeon Michael Parry.

Riddell was one of at least five patients who suffered from complications after surgery performed by Parry in the two years he was at Wairau Hospital in Blenheim.

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Blenheim man Jim Nicholls also died shortly after gall bladder surgery with Parry in 2012.

If Riddell had known about the other surgeries she might have asked for a different surgeon, Weir said.

Parry declined an interview following the news he would not have to face a public inquiry.

"I'm very grateful it's all over now, but I don't think there's anything more to say about it," he said on Wednesday.

Weir said people should be able to research their surgeon before going under the knife.

"When you take your car into a garage, you ask around and get recommendations, don't you? But with surgeons we just trust that we're in good hands. It doesn't make sense that we're more careful with who works on our cars than on our bodies."

Coroner Carla na Nagara​ referred to the Health and Disability Commission's investigation in her decision, which said Parry had breached the health code by not reading Riddell's file properly before the surgery.

Riddell did not want blood transfusions, and if Parry had known this before the surgery he could have made arrangements for alternative procedures that could have saved her life, the commission said.

Staff discovered she had internal bleeding following the surgery, but Wairau Hospital did not have procedures immediately available that could save her and she died from extreme blood loss.

Parry, still living in Blenheim, no longer had a practicing certificate in New Zealand.

He would have to pass a performance assessment before the certificate could be renewed. If he did pass, he would only be able to perform minor procedures under the supervision of a registered surgeon.

Weir said she was surprised Parry could potentially return to the operating table.

"When two peoples' lives have been lost, and when you consider the amount of people affected by his surgeries that haven't died, I would expect a bit more than that."

She was trying to find some sort of closure following the decision, but would continue fighting to make a surgeon's case history publicly available, she said.

The Ministry of Health and the Health, Quality and Safety Commission announced earlier this year they were working on a public record of clinical performance, in line with the Ombudsman's recommendation from 2014.

The ministry's chief medical officer Dr Andrew Simpson said the ACC and the commissioner were working on a set of guiding principles and more would be known mid-2017.

However, the record was unlikely to reveal information about individual surgeons, but rather the outcomes for medical units and surgical teams at each hospital.

Weir said Parry's history showed that individual records were necessary to make an informed decision.

"There's always going to be cases where they just don't have a good day ... but when I look at Parry, I see three gall bladder surgeries in December, January, February, one dead and the others rushed to another hospital. And it was supposed to be a fairly easy, minor procedure. That, to me, is a huge warning indicator.

"I just want to raise some public awareness. Do your homework on your surgeon. Don't take their skills for granted. For me, that public record would be one good thing to come out of all this."