Opinion
A jury returned a $77,000 verdict in favor óf plaintiff John L. Hubbard after trial of Hubbard’s complaint for damages for medical malpractice against defendant Travis H. Calvin, Jr., M.D. Calvin appeals the judgment entered on the verdict after the trial court denied his motions for mistrial and for new trial.
The action arose out of Calvin’s June 1972 decision to perform, and his technique in performing, a cerebral angiogram, also called an arteriogram, on Hubbard who had an electric shock in March and was experiencing vertigo. When Hubbard awoke from the general anesthetic administered for the arteriogram he was paralyzed on his left side. The severity of the paralysis subsided so that by the time of trial, four years after the arteriogram, he was able to walk with the use of a leg brace.
*532 Calvin contends the court reversibly erred in giving Hubbard’s requested special instruction reading: “If you find that the technique used by the defendant, Calvin, in the performance of the arteriogram was not approved by a respectable minority of neurosurgeons in 1972, you are instructed to find that the defendant, Calvin, violated his duty to use the care and skill ordinarily exercised in like cases by reputable neurosurgeons practicing under similar circumstances.” 1
The giving of this instruction requires a reversal for two reasons. It is not a correct statement of the law and it deprived Calvin of his right to a jury determination of whether he was negligent.
First, the instruction is founded upon an erroneous concept of standard of care in medical malpractice cases. “The courts require only that physicians and surgeons exercise in diagnosis and treatment that reasonable degree of skill, knowledge, and care ordinarily possessed and exercised by members of the medical profession under similar circumstances.”
(Bardessono
v.
Michels,
The out-of-state authorities cited by Hubbard in support of the instruction deal with alleged negligence in using methods of treatment for diseases having no known cure, where the treatment method is alleged to have been unnecessary
(Baldor
v.
Rogers, supra,
*533
More important, however, is the fact the out-of-state cases did not deal directly with instructing the jury and, to the extent they can be interpreted as doing so, they did not state a rule in language which even remotely resembles the language of the questioned instruction in the case before us. Both
Baldor
v.
Rogers, supra,
The negative or reverse implication given by Hubbard to the statements in the out-of-state cases, as reflected in the instruction, does not follow. Likewise, the federal district court case of
Leech
v.
Bralliar, supra,
The second aspect of error in giving the instruction is it consists of a formula directing the jury to find Calvin was negligent upon reaching the otherwise unguided and easy to reach conclusion of nonapproval of the technique by the “respectable minority.” (See
Hood
v.
Phillips, supra,
Since it seems probable the jury’s verdict may have been based on the erroneous instruction, prejudice appears and this court will reverse without speculating upon the basis of the verdict (see
Henderson
v.
Harnischfeger Corp.,
In this connection there was additional error in the trial court’s incorrect first reading of BAJI No. 6.30, relating to the use only of expert witness testimony for determining the standard of care for physicians. The trial court told the jury it must not determine the standard only from the expert witness testimony.
3
This was contrary to law (see
Cobbs
v.
Grant,
For purposes of retrial we feel compelled to express our view on the impropriety of the trial court’s also having given, over Calvin’s objection, Hubbard’s requested special instruction reading: “You are to find that the arteriogram performed by the defendant, Travis Calvin, on June 2nd, was a substantial factor in causing injury to the plaintiff,. John Hubbard.”
This instruction flies in the face of the very next instruction given telling the jury the plaintiff has the burden of establishing by a preponderance of the evidence all of the facts necessary to prove the issue of legal cause, among other issues. Although the court gave a conditional
*535
res ipsa loquitur instruction which may raise an inference that a legal cause of the occurrence was some negligent conduct on the part of the defendant, this is a separate theory for finding legal cause. When the jury was instructed the arteriogram performed by Calvin was a substantial factor in causing Hubbard’s injury, it was told, in effect, to find the element of legal cause was present (see
Flournoy
v.
State of California,
In light of the conclusions we have reached it is unnecessary to address Calvin’s other contentions except to comment it was inappropriate for Hubbard’s counsel to have asked the question about calling an attorney for the hospital to oppose a subpoena of records of Calvin’s studies on other patients when the trial court had earlier ruled such records inadmissible (see Evid. Code, § 913, subd. (a); and see
Cordi
v.
Garcia,
Judgment reversed.
Brown (Gerald), P. J., and Staniforth, J., concurred.
A petition for a rehearing was denied August 18, 1978, and respondent’s petition for a hearing by the Supreme Court was denied September 27, 1978.
Notes
Hubbard presented the instruction to the trial court with a citation to BAJI No. 6.00, relating to the general standard of care for physicians and surgeons, which the court also gave. Hubbard noted the BAJI No. 6.00 instruction was altered and he cited a Florida case,
Baldor
v.
Rogers
(Fla. 1954)
“[A] physician is not guilty of malpractice where the method of treatment used is supported by a respectable minority of physicians, as long as the physician has adhered to the acceptable procedures of administering the treatment as by the minority.
“As in other cases of this nature, the determination should be predicated upon ordinary negligence—what a reasonably prudent physician would do under the same or similar circumstances. [Citations.] We see no reason for the standard to be otherwise for an action for unnecessary surgery must be measured by traditional malpractice evidentiary standards.”
(Hood
v.
Phillips, supra,
The court gave the following instruction: “You must not determine the standard of professional learning, skill and care required by the defendant only from the opinions of physicians and surgeons including the defendant who have testified as expert witnesses as to such standard.”
