EXHIBIT 10.3

                               FIRST AMENDMENT TO
                             OPERATING AGREEMENT OF
                HEART HOSPITAL OF MILWAUKEE, LLC (the "Company")

         THIS AMENDMENT to the Operating Agreement of the Company is effective
as of the date the Operating Agreement is initially adopted by its Member(s)
(the "Amendment").

         1.       Section 5.10(b) of the Company's Operating Agreement is
                  hereby deleted and replaced in its entirety with the
                  following:

                           (a)      Except as specifically provided in this
                  Section 5.10, as long as any Member owns a Membership
                  Interest in the Company, and for a period of three (3) years
                  after a Member ceases for any reason to own a Membership
                  Interest in the Company, neither a Member, Investor Entity,
                  Owner, Practice nor any of their respective Affiliates, shall
                  hold, directly or indirectly, an investment, ownership or
                  other beneficial interest in (x) any hospital, or (y) any
                  other Entity (including a sole proprietorship), in either
                  case, which provides any of the following services or
                  facilities: cardiac catheterization, angioplasty, peripheral
                  angioplasty, atherectomy, stenting and PTCA, any cardiac
                  surgical procedures or services, or any cardiovascular
                  services, in any case within Milwaukee, Ozaukee, Waukesha,
                  Racine, and Washington Counties, Wisconsin (collectively, the
                  "Territory"). Notwithstanding the terms of this Section 5.10
                  (b):

                                    (i)      No Member or Owner who is a
                           physician shall be prohibited from maintaining his
                           or her staff privileges and admitting and treating
                           patients at any other hospital;

                                    (ii)     Nothing herein shall prohibit a
                           Member, Owner, Practice or their Affiliates from
                           owning up to three percent (3%) of the outstanding
                           capital stock of a company which provides healthcare
                           services or supplies and whose stock is publicly
                           traded and listed on a nationally recognized
                           securities exchange or from investing in a publicly
                           traded mutual fund or making other investments with
                           the prior written approval of the Board of
                           Directors;

                                    (iii)    Nothing herein shall prevent an
                           Investor Member who is a physician, an Owner who is
                           a physician or a Practice that is an Owner or an
                           Investor Member, from providing, and billing and
                           receiving fees from any payor for the services
                           required for therapeutic and diagnostic
                           cardiovascular services including, but not limited
                           to, nuclear imaging, echocardiography, stress
                           testing and other similar ancillary services
                           directly for the patients of such Investor Member,
                           Owner, or Practice at the regular office established
                           by such Investor Member, Owner or Practice for the
                           practice of medicine or any other office or location
                           except a hospital so long as they do not provide
                           diagnostic or interventional cardiac catheterization
                           services in such office or location;





                                    (iv)     Nothing herein shall prevent an
                           Investor Member, and Owner or a Practice from
                           operating a cardiac catheterization laboratory in
                           the MOB located on the Hospital's campus in the
                           event that the Board of Directors first determines
                           in writing that the Hospital's cardiac
                           catheterization laboratories have reached maximum
                           capacity and the Board of Directors elects for the
                           Company not to add additional cardiac
                           catheterization laboratories in the Hospital or to
                           operate a cardiac catheterization laboratory in the
                           MOB; provided, however, that, subject to the
                           restrictions set forth above in this subsection
                           (iv), among the Investor Members, the Owners and the
                           Practices, there may only be a total of two (2)
                           cardiac catheterization laboratories in the MOB and
                           further provided that (x) only diagnostic (but not
                           interventional) cardiac catheterization services may
                           be provided in such laboratories and (y) MHMI or an
                           Affiliate is engaged to manage the laboratories;

                                    (v)      In addition, MHMI or its
                           Affiliates may separately operate a mobile
                           catheterization laboratory within the Territory, but
                           only if either MHMI or an Affiliate thereof is
                           providing such service pursuant to a lease of six
                           (6) months or less to a provider who is already
                           providing cath lab services and if the Board of
                           Directors has elected not to have such service
                           provided by the Company;

                                    (vi)     Nothing herein shall prevent any
                           Member or Owner who is a physician from personally
                           performing professional medical services directly
                           for his or her patients at any hospital or facility
                           and from billing and receiving professional fees as
                           a result of his or her professional medical services
                           from any payor.

         2.       A new Section 5.10 (h) shall be added as follows:

                           (h)      In the event that any Member, directly or
                  indirectly, with or without the participation of any third
                  party, intends (i) to obtain an investment, ownership or
                  other beneficial interest in any hospital which provides any
                  of the following services or facilities: cardiac
                  catheterization, angioplasty, peripheral angioplasty,
                  atherectomy, stenting and PTCA, any cardiac surgical
                  procedures or services, or any cardiovascular services, or
                  (ii) to develop, own, operate, or manage a hospital that
                  provides any such services in any case within the counties of
                  Dodge, Fond du Lac, Jefferson, Kenosha, Rock, Sheboygan, and
                  Walworth Counties, Wisconsin, then prior to agreeing to any
                  such transaction, such Member (the "Noticing Party") shall
                  give all of the other Members (the "Notice Recipients")
                  written notice of such proposed transaction including all of
                  its material terms and conditions (the "Third Party Notice").
                  The Notice Recipients shall then have sixty (60) days
                  following receipt of the Third Party Notice to elect to agree
                  by written notice to the Noticing Party to negotiate with the
                  Noticing Party the terms and conditions of the Notice
                  Recipient(s)' participation in the transaction set forth in
                  the Third Party Notice (the "Option"). Any Notice Recipient
                  who elects within such sixty (60) day period to participate
                  in the transaction described in the Third Party Notice shall
                  have the right to enter into the transaction on terms that
                  are substantially comparable to the terms available to


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                  the Noticing Party and the other participants in such
                  transactions, and the Noticing Party shall have a duty to
                  negotiate in good faith to provide the Notice Recipients the
                  opportunity to so participate in the transaction. In the
                  event that any Notice Recipient does not elect to exercise
                  any such Option within such sixty (60) day period and execute
                  final written agreements governing the transaction set forth
                  in the Third Party Notice within a total of one hundred and
                  twenty (120) days from the date of the Third Party Notice,
                  the Noticing Party may enter into the transaction set forth
                  in the Third Party Notice together with any Notice Recipients
                  who elect to participate but without participation of any
                  Notice Recipient who does not so elect. If the Noticing Party
                  does not enter into the transaction set forth in the Third
                  Party Notice within one hundred and eighty (180) days from
                  the Third Party Notice, the terms of this subsection (h)
                  shall again apply to such transaction

         3.       This Amendment may be executed in any number of counterparts,
                  each of which shall be deemed an original, but all of which
                  together shall constitute one and the same Amendment. The
                  Members may execute this Amendment on separate signature
                  pages, and there is no requirement that the Members sign the
                  same signature pages.

         4.       Except as provided herein, the Operating Agreement shall
                  remain in full force and effect.

                                            MEMBER(S):

                                            MILWAUKEE HOSPITAL MANAGEMENT, INC.

                                            By: /s/ Dennis I. Kelly
                                                -------------------------------
                                            Title: VP


[***]


[***] These portions of this exhibit have been omitted and filed separately
with the Commission pursuant to a request for confidential treatment.


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